April 30, 2013 by John Day
dSPACE Automotive Simulation Models (ASM) now support the simulation of virtual test benches for vehicle dynamics analysis. ASM Kinematics and Compliance (ASM KnC) provides functions for designing and simulating wheel suspensions on a virtual test bench, thereby opening up a new and innovative application field, according to the company. Users can now run virtual tests for numerous vehicle variants and driving maneuvers to optimize vehicle suspensions and make them available for hardware-in-the-loop (HIL) applications.
December 3, 2012 by John Day
TT electronics said its non-contact power steering torque sensor uses less current and is smaller and lighter than existing solutions and thus helps make electronic power steering systems more compact, reliable and efficient.
Designed to sense very small differential angles, the SX-4428 Magnetorque II non-contact steering torque sensor is based on Hall Effect technology. The free-floating torque rotor within the device offers infinite rotational life. The lack of torque rotor friction means it does not wear out as in previous devices thus improving reliability and extending product life expectancy.
March 29, 2011 by John Day
TRW Automotive Holdings Corp. unveiled its Electric Park Brake (EPB) system for front axles – a development that makes the technology more affordable for a wider range of vehicle segments. TRW’s EPB offers a number of safety benefits in addition to space optimization in the vehicle’s passenger compartment thanks to the elimination of the handbrake lever or pedal.
Josef Pickenhahn, vice president, braking engineering at TRW commented: “Until recently, vehicle manufacturers have been reluctant to routinely fit disc brakes to the rear axles of small cars – normally a pre-requisite for EPB – because they are relatively expensive and lower cost drum brakes can comfortably meet performance specifications.
January 10, 2011 by John Day
TRW Automotive Holdings Corp. said it has secured a number of contracts to supply Electric Power Steering (EPS) systems for domestic Chinese vehicle manufacturers, with the first launch scheduled as early as 2012. TRW will supply its Column Drive EPS system for multiple platforms with four domestic manufacturers initially. Production will be located at TRW’s manufacturing facility in Anting, China.
August 10, 2010 by John Day
General Motors said an automatic air shutter system behind the front grill in the 2011 Chevrolet Cruze Eco uses sensors to feel and sense wind and temperature conditions. Electric motors open and close the shutters automatically based on sensor information; closing the shutters to reduce drag when the vehicle is moving at higher speeds and opening them to maximize engine-cooling air flow at lower speeds.
According to Greg Fadler, Chevrolet aerodynamics engineering group manager, the air shutter system contributes nearly half a mile per gallon in combined city and highway driving. The Cruze Eco achieves up to an estimated 40 MPG in highway driving.
August 4, 2010 by John Day
AFS Trinity Power Corporation said it has patented the Extreme Hybrid drive train in its plug-in hybrid SUV. Chairman and CEO Edward W. Furia said the drive train combines ultracapacitors with other power electronics and energy storage devices, plus off-the-shelf chemical batteries. Technical details are available at http://afstrinity.com/xh/ and videos of prototype vehicles are at http://afstrinity.com/video/index.htm.
BorgWarner will produce engine timing systems for Fiat Powertrain Technologies’ (FPT) new two-cylinder TWIN-AIR engine, including the 65-horsepower naturally aspirated, and the 85- and 105-horsepower turbocharged variants.
The only two-cylinder car engine available in Europe, the new TWIN-AIR engine achieves the lowest emissions for a gasoline-powered car, emitting just 95g/km of CO2. Due in part to its small size, low-weight and low-friction design, the new engine increases fuel economy 12 percent compared with FPT’s 1.2-liter engine and delivers up to 25 percent higher horsepower in its 85-horsepower version. Debuting in the Fiat 500 this fall, the engine is expected to be available in several other small car models.
“BorgWarner’s engine timing system delivers a combination of low weight, low friction and low noise in a compact package, making it ideally suited for FPT’s groundbreaking engine technology,” said James Verrier, president and general manager, BorgWarner Morse TEC. Initially powered by gasoline or compressed natural gas, the two-cylinder TWIN-AIR engine also has the potential for hybrid applications with start/stop technologies.
Valeo said its torque convertors, which are now produced in a plant in Mexico, have allowed the Group to win new business in North America.
The technology has been chosen to equip the new 6-speed generations of automatic transmissions on Ford’s F-Series “Super Duty” trucks and is also represented on the new 6-speed front wheel drive transmissions of General Motors, equipping several GM Group passenger car models.
Valeo says its compact torque converters offer superior shifting quality, reduce vibrations and noise, and contribute to fuel savings and emissions reduction of more than 6% while providing a dynamic driving experience.
August 2, 2010 by John Day
Infineon Technologies AG has launched its AUDO MAX family of 32-bit microcontrollers (MCUs) for automotive powertrain and chassis applications. The AUDO MAX family supports design of engine management systems meeting Euro 5 and Euro 6 emission standards for combustion vehicles and enables the electrification of powertrain functions in electrical vehicles.
Key features of the AUDO MAX family are maximum clock frequencies of up to 300MHz, high-speed interfaces like SENT and FlexRay,™ and support for advanced safety engineering by using the PRO-SIL™ features of the devices. Based on the TriCore™ processor architecture and manufactured in 90-nm process technology, the new MCUs are suited for use at temperatures of up to 170°C.
September 3, 2009 by John Day
International Rectifier has introduced the AUIRS2016S for automotive gate drive applications including common injection rails, diesel and gasoline direct injection applications and solenoid drivers.
The AUIRS2016S is a high-voltage power MOSFET high-side driver featuring an internal Vs-to-GND recharge NMOS. The device’s output driver features a 250mA high pulse current buffer stage. The channel can be used to drive an N-channel power MOSFET in the high-side configuration, operating up to 150V above ground. The AUIRS2016S also provides negative voltage spike immunity (-Vs) to protect against catastrophic events during high-current switching and short circuit conditions.