28 June 2008
|  |
Audi R8, first full-LED exterior lightning
| |
Effective immediately, the range of equipment available for the Audi R8 sports car now also includes the first full-LED headlamp with 54 LEDs. In addition to the daytime running light which now features 24 LEDs per headlamp, light emitting diodes are also used for the turn signals, the low-beam and the high beam headlights. The €3,590 option rounds out the list of equipment available for the high-tech, mid-engine sports car. The earlier launch of LED technology at the front of the car required a waiver by the European Union. The prominent advantages are lower energy consumption and a colour that more closely resembles daylight, provides greater contrast and is easier on the human eye. LEDs are also non-wearing, require a lower voltage, are compact and offer greater design freedom.
The new full-LED headlamp represents the pinnacle of Audi's lighting strategy. The use of LEDs already enjoys a long tradition. This innovative technology has previously been used in production vehicles for tail light functions, brake lights and daytime running lights. Since early 2003, Audi has also used the semiconductor technology in a number of concept cars to implement some or all of the lighting functions at the front of the car.
| | Top of page |
11 June 2008
| |
First full-LED headlamp for the Audi R8
| |
 LED technology on Audi R8 sports
The earlier launch of LED technology at the front of the car required a waiver by the European Union. The prominent advantages are lower energy consumption and a color that more closely resembles daylight, provides greater contrast and is easier on the human eye. LEDs are also non-wearing, require a lower voltage, are compact and offer greater design freedom.
| | Top of page |
26 Mai 2008
| |
Alpine develops thin subwoofer to generate bass in restricted automotive space
| |
Alpine Electronics, the in car multimedia specialist, has developed a novel subwoofer that offers the possibility to offer excellent low frequency performance in vehicles that couldn’t previously accommodate a bulky, square enclosure. Sports cars, SUVs and saloons could benefit from bass performance that equates to that of a traditional 12” subwoofer yet only measures some 100mm deep.
“Traditional subwoofer enclosures need to move large volumes of air to be effective, therefore they tend to be bulky,” says Alpine’s OEM business manager Keith Price. “Our solution allows us to offer excellent bass in vehicles that couldn’t afford to sacrifice such a large package volume to the subwoofer.”
As consumer demand increases for great sound reproduction in the car, vehicle manufacturers are looking for ways to offer performance using any available package space. The solution from Alpine can be installed in an area 100mm deep. This has been achieved through the development of a specific pair of 165mm speakers that have a long throw and deliver extreme magnetic force. The two units combined, offer the equivalent of 200g of moving mass, approximately the same as a bulky traditional 12” unit. An additional option is to combine the amplifier in the unit reducing wiring complexity.
| | Top of page |
9 Mai 2008
| |
Volkswagen presents “Park Assist Vision”
| |
 Volkswagen
“Park Assist Vision”
Having already launched a semi-automatic park-steering system, the "Park Assist", in its Touran, Tiguan, Passat and Passat estate to help drivers parallel park, Volkswagen is now presenting a concept system at the Hanover Fair which is capable of perpendicular parking – and of doing so fully automatically. The only thing the driver needs to do is select an available space on the monitor of the navigation system, set the selection lever of the automatic-drive vehicle (DSG) to "P" and alight from the car. The driver can, of course, choose to stay in the vehicle until the vehicle has been manoeuvred into its space.
Two cameras located in the left and right exterior mirrors are responsible for gauging the dimensions of the parking space. The video signals are transmitted to a 2-GHz high-performance computer which then analyses them and sends commands to the steering and drive systems. If the driver has himself initiated the parking manoeuvre, the "Park Assist Vision" will reverse the vehicle into the parking space in accordance with the previously computed course and using electromechanical power steering, the electronic parking brake, DSG and the engine power produced by the idling mixture. Two additional cameras at the front and rear of the vehicle as well as the system’s ultrasound sensors monitor the operation and will stop the vehicle if necessary. The driver may also interrupt the manoeuvre at any time using the remote control.
This new driver assistance system is still in the trial phase of development, and a date has not yet been set for introduction of the system to series production.
| | Top of page |
9 Mai 2008
| |
Land Rover LRX Concepts with Lexan High-tech Plastic Glazing from SABIC Innovative Plastics
| |
Land Rover has unveiled its vision of the Land Rover future with the Geneva premiere of two versions of their Land Rover LRX concept car that debuted earlier this year at the North American International Auto Show. The new three-door premium cross-coupé prototype is introduced in two different versions here. The first of the two concepts was made to showcase the latest in design technologies, with one of its highlights including the unique panoramic roof and side and rear windows, made from SABIC Innovative Plastics’ Lexan GLX* high-performance plastic glazing with exclusive Exatec coating technology. In the second version of the car, only the side and rear windows feature the Lexan plastic glazing with Exatec coating technology.
As a result of the close collaboration with Land Rover, SABIC Innovative Plastics was able to contribute to the automaker’s objective of using lighter weight and more sustainable materials on the LRX concepts. Through the use of SABIC Innovative Plastics’ high performance Lexan polycarbonate (PC) resin with Exatec coating, Land Rover was able to design differently and reduce each LRX’s overall weight by close to 40 pounds (19 kilograms).
“At SABIC Innovative Plastics, we believe we are in a unique situation to be able to help automakers create the vehicles of the future that allow them to meet key regulations related to safety and reduced emissions. By adopting our lightweight glazing technologies, we were able to help Land Rover create a truly differentiated design for their LRX concept with strong Land Rover design DNA. Our Lexan polycarbonate resin and Exatec coating technology offered Land Rover the opportunity to reduce the weight in key applications like the windows and roof to help them meet key design, engineering, safety, and environmental objectives,” said Derek Buckmaster, director Exterior Body & Glazing, SABIC Innovative Plastics, Automotive. “We were delighted to work with Land Rover on this exciting launch featuring our range of glazing technologies, helping them in the engineering and overall delivery of the unique applications.”
In addition to important environmental benefits, the SABIC Innovative Plastics Lexan PC resin offered significant design advantages not possible in traditional materials. Land Rover designers were supported by the SABIC Innovative Plastics glazing and design teams in developing the LRX unique transparent glazing signature that wraps around the entire car, showcasing the fluidity of its lines and excellence surface quality. The car’s upper body design is accented by an enhanced visibility as a result of the clear window glazing. At the same time, the interior of the original LRX concept offers the feeling of a more-spacious cabin with the use of the transparent plastic panoramic roof that is supported by a “spider” frame running into the A-pillars. The rear quarter pillars show how the Lexan material can enhance design freedom, incorporating an aerodynamic boundary layer separator as well as a sharp wrap-around to meet the backlight.
High-performance Lexan GLX polycarbonate with Exatec coating systems also provides high impact strength and UV protection for the LRX concept. On the original LRX concept, the polymer glazing material is used in the A-posts, side windows, rear quarter windows, panoramic roof, and backlight. Incorporating several glazing technologies from Exatec LLC enables the usual mast antenna to be eliminated, with hidden antennas incorporated within the panoramic roof glazing. On the new LRX concept introduced today, the Lexan glazing materials is used in the A-posts, side windows, rear quarter windows, and backlite.
/FONT> | | Top of page |
8 Mai 2008
| |
Microsoft and Hyundai-Kia Automotive Group to develop next generation of in-car infotainment
| |
Microsoft Corp. and Hyundai-Kia Automotive Group (HKAG) have entered into a long-term agreement to co-develop the next generation of in-car infotainment systems. Bill Gates, chairman of Microsoft, and Euisun Chung, president of HKAG, were present as Martin Thall, general manager of Microsoft’s Automotive Business Unit, and Hyun Soon Lee, president and chief technology officer of HKAG, signed the agreement in Seoul.
Together, Microsoft and HKAG will deliver new and innovative solutions based on the Microsoft Auto software platform, bringing the future of in-car technology to Hyundai-Kia drivers worldwide.
“These new systems will redefine consumer experiences in the car,” Gates said. “Since the spring of 2006, HKAG and Microsoft have been sharing their vision for the future of in-car technology. We’re now aligned to develop the next generation of in-car infotainment systems.”
“HKAG’s strategic vision is to become a global leader in automotive and information technology convergence,” Chung said. “The partnership with Microsoft will form the foundation for achieving that vision.”
“We are pleased to partner with Microsoft to deliver high-performance infotainment solutions to our customers,” Lee said. “The advanced capabilities, flexibility and low price point make the Microsoft Auto software platform an attractive solution for us.”
The first product, a next-generation infotainment system that provides voice-controlled connectivity between mobile devices, will be introduced in the North American market in 2010. It will further apply to Asian and European markets, and expand into multimedia and navigation devices. These easy-to-use infotainment systems will allow consumers to enjoy music in various digital formats.
The next-generation infotainment systems are comparable to mini-PCs. Even after product launch, new functions can be added or upgraded in the form of software program updates, an innovation to existing in-car multimedia technology.
The Hyundai-Kia Automotive Group’s adoption of the Microsoft Auto software platform increases Microsoft’s presence in the Asian car market and enhances the global automotive business. The engineering and marketing teams of Microsoft’s Automotive Business Unit in Redmond, Wash., will be working directly with counterparts at HKAG in Seoul to support this goal. Systems powered by the current version of Microsoft Auto are currently available in Fiat Auto Group vehicles in Europe and South America and Ford Motor Co. vehicles in North America.
In a related announcement, Microsoft and Hyundai-Kia, along with the Institute for Information Technology Advancement (IITA), signed a memorandum of understanding (MOU) to co-establish an automotive IT innovation center with the goal of promoting innovation and opportunities for Korean software and device vendors in the global market. Hyundai-Kia will invest $166 million over the next five years to bring IT technology advancements into the car and to develop new in-car services.
| | Top of page |
21 April 2008
| |
Eberspächer offers a variety of sound designs
| |
Eberspächer engineers have already shown the potential of the anti-noise technique in successfully demonstrating the functions in different test vehicles with four, six and eight-cylinder engines. Decisive steps have been taken in the last two years in making this ready for series production: The durability has been improved considerably, the size of the silencer has been reduced and the system has been successfully applied to diesel vehicles. Initial negotiations for a standard use in future series-production vehicles have already commenced. Hardly surprising really as the sound system has a number of interesting options to offer the car manufacturers. A wide field of applications is presented by the diesel vehicles for example: Spurred on by the successes in performance and propulsion power, they can now even challenge the petrol engines in motorsports! Unfortunately though, the profile of the new and dynamic diesel engine hasn’t been received very well up to now from the acoustics viewpoint. A further example is the fuel-saving cylinder shut-off: This is often associated with undesirable noise changes: The sudden changing from eight cylinders to just four has often made the driver uncertain. ”ActiveSilence” could contribute to authentic sound perceptions in such situations in the future. A special option is the choice of a sound at the press of a button: For example to switch between super quiet, definitely sporty or elegant. With such a feature, the car manufacturer can offer the customer more harmony in the interaction between driving dynamics and acoustics. In addition a high-efficiency silencing by as much as 20 decibel is possible.
From the technical viewpoint, the system is based on the anti-noise principle. A negative mirror-image of the undesired sound waves is generated over a loudspeaker. The opposing waves balance each other out as soon as these exactly superimpose. Major pre-requisites are however the perfect timing and exactly the right level for the anti-noise. Within a partnership, the Bosch-Group develops an electronic control unit with tailor-made engine management system interfaces.
That sound can be counteracted by anti-noise has been known for a long time now. The components suitable for vehicles have not been available up to now for this. The ambient conditions prevailing in an exhaust system are extreme: Excessive heat, moisture, aggressive condensate, a high sound pressure level and severe vibrations. A major milestone was the development of loudspeakers to durably withstand such conditions as well as a silencer design providing optimum protection for the loudspeaker.
| | Top of page |
11 April 2008
| |
Schaeffler’s electromechanical steering system with ball screw drive
| |
 Schaeffler’s electromechanical steering
system with ball screw drive
Ball screw drives are used to transform rotary motion into linear motion through a direct coupling between drive element and output element. In the Tiguan, the ball nut is driven by a servomotor that is linked with the screw drive via a belt. Due to the low internal friction of the ball screw drive, the driver can directly feel the low-frequency changes on the wheel when driving on asphalt that are important for the drive feel.
For applications in other vehicles, the ball screw drive can be modified in such a way that the steering characteristics and steering feel for the driver vary depending on the customer’s wishes.
| | Top of page |
27 March 2008
| |
The new Michelin Energy Saver tyre for the Peugeot 308 reduces CO2 emissions by almost 4 grams per kilometre
| |
Michelin is equipping the recently unveiled Peugeot 308 with tyres from its new Energy Saver range. Michelin has long been involved with Peugeot in developing innovations for the manufacturer’s new models, and the partnership has enabled Michelin to make a significant contribution to the car’s energy balance. With a reduction in rolling resistance of 20% compared to the market average, it reduces the amount of energy needed propel the car along the road and thus delivers superior fuel efficiency.
The tyre manufacturer’s technological solution generates fuel savings of nearly 0.2 litres per 100 kilometres in combined cycle driving, resulting in a reduction in CO2 emissions of nearly 4 grams per kilometre. This represents around a one tonne reduction of CO2 emitted into the atmosphere over the entire life of the vehicle. By comparison, that same amount would take 40 trees, one year to absorb.
Michelin’s goal is not only to make the Peugeot 308 more energy efficient but also to deliver superior grip and safety performance as well as the longest tyre life in the market. The result is a high-tech tyre for the 308 that is part of the new Michelin Energy Saver range, which will be launched onto the general replacement market early in 2008.
The Peugeot 308 1.6 HDi 90 and 110 hp versions sold in Europe which are equipped with 15 or 16-inch wheels, will be fitted with Michelin Energy Saver tyres.
| | Top of page |
20 March 2008
| |
The “networked BMW” of the future recognises drivers by their face
| |
A critical element in the exceptional levels of comfort on board a premium vehicle is the degree of individualisation. Playing a leading role – alongside high-class looks and quality – in achieving this individualisation is the scope for personalisation of the ergonomic, control, seat and infotainment functions. Drivers of luxury models are already able to store these settings on their car key. Like a PIN number or password, a key can of course be passed on to other people. Biometric properties, on the other hand, cannot: physical features are unique. In order to find a way to guarantee independence from the key and thus also ensure protection of personal data, the BMW Group is conducting intensive research into the potential of video-based personal identification. This biometric authentication process builds on the existing concept of key personalisation, but identifies the driver unequivocally by distinguishing facial features.
Without the need for any active movements – as required for a fingerprint sensor, for example – an infrared camera integrated into the vehicle scans the driver’s face as soon as he sits down in the driver’s seat. The data recorded is then cross-referenced against the facial features stored in a database. Only when the driver has been clearly identified are the comfort settings in the BMW prototype (for the seat, mirrors, steering column and radio) automatically applied to the individual involved. In the future this capability could even extend to linking up personal data – such as the driver’s personal telephone book or the navigation system’s address book – and the car’s immobiliser to the camera-based driver memory system.
In contrast to the development of video-based personal identification systems for use inside buildings, the BMW Group development engineers have to contend with constantly changing light conditions – over which they have little control – in adapting the process for vehicles. For example, sun shining onto the vehicle from the side casts an intense shadow over the driver’s face, making it tricky to identify. And when beaming in from the front, the sun can cause distortion and therefore dazzling of the camera. Minimising these external influences to allow the system to function correctly represents the biggest challenge in ensuring that video-based personal identification technology is sufficiently robust for use in series-produced vehicles.
| | Top of page |
23 February 2008
| |
VW’s 2007 Research Roadmap - Adaptive anti-glare system
| |
Every car driver knows this situation: The sun is so low in the sky that in spite of the lowered sun visor there is severe glare, and forward visibility is impaired. And this can have dangerous consequences. So the goal here was to improve the functionality of the conventional sun visor. Target: Optimize the sun visor with minimal reduction of the visual field. In response to this problem, Corporate Research has reinvented the “sun visor”. The system, an adaptive anti-glare system, makes use of electronics. The conventional sun visor no longer exists in this case. Rather, the windows themselves become the anti-glare element.
The system is visionary: Based on data from a sun status sensor and the eye position of the driver, the point of light entry on the windshield is calculated. Precisely in this area the glass is darkened. In curves, the darkened “spot” travels along the windshield and covers the sun from the viewing angle of the driver. In an advanced development of this “switchable transparency”, the system might conceivably be used on all window glass. Then glare for the occupants could also be effectively minimized, e.g. glare from the lights of oncoming vehicles or light reflections on wet asphalt.
In the final analysis, automation of glare protection enhances comfort and safety. Another aspect is its optimization of installation space, since even low-profile vehicles like the Roadster would get an optimal anti-glare system that fulfills all legal requirements. This opens up entirely new opportunities for interior designers too.
| | Top of page |
11 February 2008
| |
BMW ConnectedDrive adds safety and convenience to 30,000 BMW cars in 2008
| |
ConnectedDrive, BMW’s safety and assistance telematics service, is expected to be supplied on 30,000 new BMW cars in the UK in 2008. ConnectedDrive offers drivers a dedicated website and a unique combination of facilities, emergency and assistance as well as driver convenience services, with new features such as Google Send-to-Car and RSS internet information feeds directly into the car.
The Google Send-to-Car feature marks a partnership with Google and offers BMW drivers an innovative new proposition. The time-consuming destination selection process of navigation systems has been virtually eliminated. The driver can now select one or more destinations through Google maps from the comfort of their work or home office. These are then sent directly from their PC to the car through the ConnectedDrive web portal. Once in the car, the driver simply accepts the destination, saving time and ensuring that their full focus is on driving.
| | Top of page |
22 January 2008
| |
New nano additive (Nanoprene) development from LANXESS reduces tyre wear
| |
Specialty chemicals group LANXESS has developed a new high-performance rubber additive – Nanoprene. This material additive for the rubber mixture of the tire tread significantly cuts wear in automobile tires. The much longer service life of the tire as a wearing part is easy on the wallet and the environment. Unlike with others developments in the tyre rubber sector, use of this additive does not in any way impact on rolling resistance or wet grip.
In chemical terms, Nanoprene consists of particles of only around 50 nanometers made from polymerized styrene and butadiene – i.e. “traditional” tyre rubber raw materials. What makes all the difference is the minimal size and surface functionality ensured by a specialized production process at LANXESS. The nanoparticles with the swell-resistant, highly cross-linked core have special “anchor points” on their surface, enabling the Nanoprene particles to be perfectly linked with silica and silanes. “Adding Nanoprene to a tread mix containing silica improves wear resistance and grip. At the same time, rolling resistance remains at a low level. The “magic triangle” is therefore extended,” says Prof. Obrecht, highlighting the physical and chemical relationships.
The use of Nanoprene does not entail disadvantages on the process engineering side. Tyre manufacturers can, unlike with most “traditional” additives, retain their tried and tested rubber formulations. “Nanoprene may be viewed very much as a sort of spice that makes a good recipe even better,” says Obrecht. Even the form in which the new product is supplied will be familiar to users. The additive produced by LANXESS at the emulsion rubber production plant in La Wantzenau, France, arrives at the customer in bale form as with any tyre rubber. All that has to be done is to optimize the sequence and timing for adding additives and to adapt to the mixing equipment used to enable Nanoprene to deliver the optimal effect. Users can request support for this from LANXESS.
The first products with this additive are already on the market. Nanoprene is currently undergoing extensive tests at selected tyre manufacturers. The Nanoprene product range will be expanded in the near future with further grades that vary, for example, in terms of their glass transition temperature – i.e. their low-temperature flexibility – and are thus even better suited to specific types of tyre.
Together with LANXESS’s Rhein Chemie business unit, TRP is opening up further application areas for Nanoprene. These include impact resistance modification for thermoplastics and thermosetting plastics. Work is also under way to develop a specific Nanoprene grade for fuel cell membranes.
LANXESS has created numerous patents during the development of Nanoprene which are already applied for patent protection worldwide.
| | Top of page |
21 January 2008
| |
Delphi Shows New Dual-View Navigation at CES
| |
 Delphi's Dual-View Navigation
Dual-view navigation is a new product for which Delphi is leading the development. It allows a driver to view full-featured map-based navigation while the front seat passenger views video content. Delphi has designed this unique system so that the driver cannot view the video when the vehicle is operating. Specially placed sensors in the vehicle will disable the unit if the driver attempts to view video.
Using a special LCD (Liquid Crystal Display) that simultaneously displays different information depending on the direction from which screen is being viewed; the system superimposes a "parallax barrier" on an ordinary TFT (thin-film transistor) LCD screen. Delphi is also showing the dual-view technology on a rear seat video screen.
| | Top of page |
20 January 2008
| |
Delphi's Entry Level Navigation System
| |
 Delphi's Entry Level Navigation System
"Delphi's navigation portfolio spans from ultra-high-end vehicle applications to personal navigation devices," said Rich Betz, Delphi Electronics & Safety managing director entertainment & communications. "In excess of 33 million portable navigation systems will be sold in 2008 which will translate into a tremendous demand for an array of vehicle OEM solutions." Delphi's entry level system provides the benefits of an integrated system designed to complement specific vehicle interiors but also offers a flexible, scalable architecture that allows vehicle manufacturers to address the desire of consumers to have a navigation radio system in their vehicle regardless of the vehicle category.
The system features full-color, 2.5-D dynamic map navigation with map overlays for lane guidance and turns. The system offers voice-guided directions and is available in single or double din designs with a 4.3 to 6.5-inch display. Its solid state secure digital card map database provides seamless routing and enables incremental map updates. The SD card input can also be used for other media (music, pod cast, etc.). Delphi's Entry Level Navigation Radio integrates map navigation and audio into one unit and allows the navigation system to be used in parallel to the audio system. The unit can include CD-ROM, an MP3 decoder and an auxiliary audio input.
| | Top of page |
18 January 2008
| |
New Delphi's reconfigurable instrument cluster
| |
 New Delphi's reconfigurable
instrument cluster
"In keeping pace with today's lifestyles and consumer demands, vehicle manufacturers have proliferated modern vehicles with electronics information and communications technology," said Robert Schumacher, general director of Advanced Product & Business Development. "Now that we have this high-content environment, it is important to simplify the interface to make it easy for the driver to manage."
Delphi's ICP vehicle offers an intuitive, integrated interface that provides easy access to information. In addition, the system helps to optimize safety and security while offering a clean aesthetic look that is in harmony with the vehicle interior.
Technologies on the ICP vehicle's instrument panel include:
- Reconfigurable Cluster -- a 12.3" color AMLCD (active matrix liquid crystal display) that provides programmable information in front of the driver.
- Reconfigurable Head Up Display (HUD) -- a full-color HUD display with LED backlighting used in conjunction with a multifunctional controls. The head-up display enhances safety by allowing the driver to safely view critical information projected on the windshield in their forward view without looking away from the road.
- Exogenous Safety Warning System -- a system that emits a bright flash of light to bring the driver's attention to the forward view when the potential for a collision is detected by a radar-based active safety system.
- Bi-Directional Key Fob Link -- a key fob that provides a gateway for two-way vehicle communication. The fob offers new information, convenience and protection features to owners allowing communication with the vehicle using portable devices (such as a cell phone) to perform tasks such as closing windows and checking vehicle status.
- Portable Device Integration -- a system that integrates portable devices such as PDAs, cell phones, etc. into the vehicle's information architecture to provide the driver with seamless access to information.
- Multifunctional Controls -- a control system that provides easy, safe access to information content. The layout is consistent with the head-up display format.
- Personalized Cockpit -- a personalized system that allows information displays to be personalized based on driver demographics, desires and needs.
- Driver State Assessment -- a system that is used in conjunction with the active safety systems to intelligently warn the driver of impending danger by assessing attention to the driving task and warning appropriately. This system also provides fatigue recognition and has a security application.
- Driver Face Recognition -- a system that enables vehicle access and allows vehicle content to be personalized based on recognition of a specific driver.
- Interior Monitor Cameras -- an interior camera system that allows the driver to monitor rear seat occupants, particularly children.
- Rear View Cameras and Display -- a system where rear view cameras replace the traditional rear view mirror with a combination of near view (parking aid) and far view (normal view) cameras and a color display. The system eliminates the forward blind spot due to the traditional mirror.
- Side View Cameras and Display -- a system consisting of a camera and display combinations that replace traditional side view mirrors and help eliminate the blind spot for drivers.
| | Top of page |
17 January 2008
| |
New direct-steer system on Mercedes SLK
| |
A newly developed direct-steer system with variable power assistance is available on the face-lifted Mercedes SLK as an option (standard on SLK AMG 55).
The direct-steer system is derived from the previous speed-sensitive power steering and operates purely mechanically. This dispenses with the need for sophisticated actuator units and complex sensors. At the heart of the system is a new rack with ingeniously devised toothing that is designed to alter the steering gear ratio as the steering angle changes. Around the central position, the steering has an indirect ratio for good straight-line stability, resulting in better safety at high speeds. As soon as the steering wheel is turned to an angle of 5 degrees, the ratio increases rapidly and the steering feels far more direct. In this way, the number of steering wheel turns from lock to lock is reduced by around 25% with the new direct-steer system. Consequently, relatively small turns of the steering wheel are sufficient for changing course when driving in city traffic and high-speed twisty sections of country roads can be negotiated safely and precisely using relatively small steering movements. Porsche equips the 911 of this steering, but the ratio changes from 30°.
Yvonnick Gazeau | | Top of page |
16 January 2008
| |
DENSO Develops World's First Passenger Vehicle Refrigeration Cycle System Using an Ejector
| |
DENSO Corporation has developed the world's first refrigeration cycle system for passenger vehicles that uses an ejector. The system is used for both an air conditioner and cooler box (vehicle refrigerator) and is installed on Toyota Land Cruiser, launched in Japan and in North, Central and South America, Asia, and other regions throughout the world at the end of last year.
The car air conditioner and cooler box use the same refrigeration cycle. In a conventional refrigeration cycle, a solenoid valve switches between refrigerant flow for cooling in the air conditioner and refrigeration in the cooler box, which effects air conditioning performance when the cooler box is used. In contrast, the new system eliminates the solenoid valve and uses a small refrigerant injector called an ejector instead of an expansion valve, which allows cooling via the car air conditioner and refrigeration through the cooler box simultaneously.
By using an ejector that rapidly injects and expands high-pressure refrigerant, the energy that previously was lost in the expansion valve is converted to pressure energy and reused, thus boosting energy efficiency. As a result, high cooling and refrigeration performances are both achieved even when the cooler box is used.
"An ejector system can drastically improve the energy efficiency in the refrigeration cycle and we are now working to develop a system specifically for car air conditioning systems," said Hikaru Sugi, managing officer in charge of DENSO's Thermal System Business Group.
| | Top of page |
12 January 2008
| |
Air conditioning system with the world's first matrix infrared sensor
| |
 Denso's matrix IR
The newly developed matrix IR sensor located in the center of the ceiling panel, detects the surface temperature for each rear seat passenger and converts it into electrical signals, which are sent to the air conditioning ECU (electronic control unit). The air conditioning ECU then calculates the appropriate air conditioning settings to adjust air temperature, airflow, and air outlet mode for each passenger.
The matrix IR sensor has multiple sensor elements that detect infrared rays radiated within the vehicle cabin and measure the surface temperature for each passenger. This provides air conditioning more suited to the temperature of each passenger, compared to a conventional system where air conditioning is adjusted according to the cabin's temperature. For example, when a rear seat passenger enters the vehicle from a hot environment, the matrix IR sensor can provide cooler air conditioning to the entering passenger, while maintaining the air conditioning environment for the other passengers.
| | Top of page |
8 January 2008
| |
Worldspace and Delphi announce development agreements for European satellite radio receivers
| |
Worldspace and Delphi announced today that the two companies have an agreement in which Delphi will design the first WORLDSPACE satellite radio mobile receiver for the European aftermarket based on a WORLDSPACE-developed reference design. In addition, the two companies announced that WORLDSPACE has selected Delphi to be a lead designer for its European OEM receiver and reception system applications that will also be based on WORLDSPACE’s reference designs. Delphi made the announcement at the 2008 International Consumer Electronics Show.
Designed by Delphi for European aftermarket applications, the WORLDSPACE aftermarket receiver will receive the signal from the WORLDSPACE satellite which covers the European continent. The satellite digital radio (SDR) standard that was approved by the technical committee of the European Telecommunications Standards Institute (ETSI) in November 2006 is the core of the technology that WORLDSPACE is implementing in its satellite radio communication networks in Europe. It combines terrestrial repeaters and satellites and permits the most efficient use of the spectrum allocated for satellite radio (12.5 MHz from 1479.5 to 1492), thus maximizing digital capacity while maintaining excellent service quality, even in difficult reception environments such as urban city centers.
The aftermarket receiver is expected to be launched in parallel with the start of WORLDSPACE’s mobile service beginning in Italy in 2009. WORLDSPACE expects to begin broadcasting 40 to 50 channels of commercial-free music, news, talk, entertainment and sports programming 24 hours a day. WORLDSPACE plans to use the most advanced digital audio technology available today (MPEG-4 accPLUS v.2). Delphi’s receiver designs will leverage the company’s satellite radio expertise and feature the advanced mobile service capabilities built into the new WORLDSPACE system.
WORLDSPACE has two operational satellites that cover nearly two-thirds of the world’s population. Its AfriStar™ satellite covers Europe, the Middle East and Africa. The company’s strategy is to roll out a European service, beginning with Italy. A third satellite, already built and in storage in Toulouse, France, will provide additional capacity over Europe, enabling consumers to have access to approximately 50 channels per country at the service’s maturity.
Yvonnick Gazeau | | Top of page |
7 January 2008
| |
Long-Range Bi-directional Key Fob Vehicle Access System from Delphi
| |
Delphi's latest key fob offering is a bi-directional key fob that provides car-to-user and user-to-car communication informing the user about the status of various functions in the car. Deep expertise in vehicle wireless communication enables Delphi to offer optimum range performance to the OEM. Delphi's bi-directional key fob system provides long-range possibilities for car-to-user communication.
The bi-directional key fob has a range of up to 1 km (open-air) and 250 m (from within buildings). The system allows users to lock and unlock doors, open trunks and operate panic buttons. It can also feature remote start and display vehicle status through a new E-Ink electronic paper display.
Yvonnick Gazeau | | Top of page |
17 December 2007
| |
Nissan debuts world's first distance control assist and navigation-enabled adaptive cruise control
| |
 Nissan's distance control
The Distance Control Assist system determines the following distance of the driver's vehicle, as well as the relative speed of both vehicles, using a radar sensor installed in the front bumper. When a vehicle approaches close to the vehicle ahead and the accelerator is not engaged, the system activates the brakes to decelerate smoothly. The technology new is, if accelerator engaged, a "push back" mechanism on acceleration actuator to help the driver to release the pedal. In a situation where the vehicle ahead slows down or brakes, requiring the driver to respond by braking, the system instantly alerts the driver through message and audio warnings. Simultaneously, the system pushes back the accelerator to assist the driver to switch to the brakes.
The adaptive cruise control system new is the use of navigation map data. Utilizing route-information fed through the on-board navigation system, the adaptive cruise control system can modulate the vehicle-speed in anticipation of the next curve on the road. When approaching a curve, the system gradually decelerates, and as it clears the turn onto a straight road, the system seamlessly resumes to its original speed.
| | Top of page |
7 December 2007
| |
Flat Blade 2 wiper blades from Valeo
| |
The first generation of Flat Blade wiper blades took a significant step forward by replacing the multiple articulated levers used in previous generations of blades to distribute the contact pressure along the entire length of the blade, with continuous built-in splines inside the blade. The second generation of Flat Blade wiper blades is more aerodynamic, more compact, lighter and helps to prevent snow accumulation under the blade.
The second generation of Flat Blade wiper blades feature two major developments. Previously, the rubber wiping lip and the spoiler were made of the same rubber part, while the Flat Blade 2 separates these two features. Wiping performance at high speeds up to 220 kph is improved by a more rigid spoiler with an optimized shape. The airflow around the spoiler is determined by the combined speeds of the vehicle and the wind, it is therefore crucial to further push the blade aerodynamic limits. In addition, the lower section of the blade is shaped to prevent the generation of lifting force.
The second development is the replacement of two splines with one, while retaining the same functions. As a result, the blade is more compact, with a width reduced from 16 mm to 10.5 mm, offering improved visibility for the driver. Another advantage is the reduction of snow buildup, because of the smaller volume beneath the splines, which improves performance under extreme conditions. The first generation of Flat Blades were 50% lighter, and the mass of the second generation has been reduced by an additional 20%, so that a 600 mm blade now just weighs 101 grams. Finally, the second generation of Flat Blades clean the windscreen right to the ends of the blade, i.e.10 mm more than Flat Blade 1. This is an important step forward, since the increasingly larger windscreens require a maximum wiping area. Flat Blade 2 wiper blades are entirely made from recyclable parts.
| | Top of page |
7 December 2007
| |
New Valeo’s Intelligent Lighting Systems
| |
Statistics show that an accident is three times more likely to occur at night than during the day, but this figure could be greatly reduced by the arrival of innovative technologies that greatly improve night-time visibility. Valeo offers numerous lighting innovations other than the usual low and main beam functions, offering advanced technological enhancements to the already mature Dynamic Bending Light function (DBL). The first development offers a special low beam function for motorway use. This special adaptation to motorway driving increases visibility by 60 meters, giving the driver an additional 1.7 seconds to react at 130 km/hour. The “motorway” function will be activated automatically at speeds above 11 0 km/hour, or even combined with information from a navigation system. “Motorway” mode is also compatible with DBL function. This technology, which is already allowed in Europe, is available with Halogen, Xenon and LED headlamps.
A more comprehensive solution, “Full AFS,” supplements the DBL function (Adaptive Frontlighting System) with a lighting system that takes a larger number of parameters into account. “Urban” mode, for example, reduces glare for other road users and pedestrians. “Adverse weather” modes for normal roads and motorways concentrate lighting on certain areas of vision, to reduce glare due to reflections from wet road surfaces or fog, for example. The “Full AFS” system will lastly offer a “Tourism” mode that laterally reverses the lighting of right-hand-drive vehicles for driving in countries where one drives on the right side of the road, and vice versa. This change will be activated by the driver or, preferably, automatically by a navigation system.
Valeo is also developing a “Progressive Beam” lighting system that uses a camera to detect the presence of other vehicles. The vehicle’s headlamps can therefore remain in the main beam position and progressively lower the beam as an oncoming vehicle approaches, to avoid glare. The function also takes into account the rear lamps of vehicles driving in the same lane. In an even more innovative development, the camera will detect the road’s gradient and adapt the beam height accordingly, a function particularly useful in bumps and dips. This system is being developed with Xenon or LED headlamps and is due for release by 2010. All of these functions are grouped together under the name BEAMATIC+™.
Lastly, selective lighting will be used to maintain the main beam position of headlamps without dazzling oncoming vehicles, by using a dynamic shield that follows the movements of each vehicle detected by the system.
Yvonnick Gazeau | | Top of page |
|
