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Infineon demos starter kit for transmission design

Posted: 20 Oct 2006     Print Version  Bookmark and Share

Keywords:Infineon Technologies  transmission starter kit platform  Convergence 2006 trade show 

At the Convergence 2006 trade show in Detroit, Infineon Technologies is demonstrating a transmission starter kit platform that provides the most precise control in the industry and includes all key IC content for next-generation, wide gear ratio automatic transmissions. The platform is a complete transmission control unit, supporting 5-, 6- and 7-speed gearing designs, based on Infineon current driver transmission solenoid control ICs, a powerful 32-bit automotive microcontroller (MCU) and a MCU power supply IC, as well as other power and communications ICs from Infineon's broad automotive portfolio.

"This starter kit provides our customers with a basic platform for innovation in the design of transmissions that make better use of engine power to deliver smoother operation and improved fuel economy," said Christopher Cook, general manager of the Automotive, Industrial and Multimarket (AIM) Business Group, Infineon Technologies North America Corp.

Because they provide an improved driving experience and greater overall efficiency, wide ratio gearing is moving from a "premium" feature offered only in luxury vehicles to wide adoption across many types of passenger cars and light trucks. Typically, a 6-speed transmission can improve fuel economy from three to seven per cent, depending on vehicle type. With a wider span between the highest and lowest gears, compared to traditional 3- and 4-speed transmissions, the designs demand control electronics that are more precise, flexible and capable.

The starter kit demonstration by Infineon includes components that provide the most precise control in the industry. For example, the two per cent accuracy of the solenoid control ICs surpass the five per cent accuracy achieved in a typical four-speed transmission. Key components in the starter kit design include three products introduced by Infineon at Convergence 2006. The first product amongst these is the TLE7241E Dual Constant Current Driver and TLE7242G Quad Fixed Frequency Constant Current Pre-Driver that features commanded current accuracy of two per cent (compared to a typical five per cent) and programming flexibility through SPI interface.

The second product is includes is the TC1764 32-bit MCU which combines Infineon's proven TriCore automotive MCU architecture and a 32-bit Peripheral Control Processor and transmission-optimised peripherals on one chip. The third product is the TLE7368 (SuperSonic) which is a multifunction power supply IC that converts voltage supply from standard auto batteries to the power levels needed to drive the 32-bit MCU.

Other Infineon components featured on the starter kit design include a Controller Area Network transceiver and a range of power devices, including PROFET and multi-channel low-side smart power switches and discrete devices.

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