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Control arrangement accommodating requirements of different countries for motor vehicles having an internal combustion engine and an automatic transmission
| Details |
Inventors: Spichalsky, Carsten;
Assignee: Volkswagen AG (Wolfsburg, DE)
Primary Examiner: Wright; Dirk
Assistant Examiner:
Attorney, Agent or Firm: Baker & Botts, L.L.P.
A control arrangement for a motor vehicle having an internal combustion engine and an automatic transmission provides country-specific engine and/or transmission control commands which can be selected alternatively for different countries by a changeover device. The control arrangement permits the use, during production, of identical engine and transmission control units together with their control commands so that it is possible to activate simply in a country-by-country fashion the engine and/or transmission control commands, which determine, for example, the exhaust-gas behavior and the fuel consumption of the motor vehicle. |
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DETAILED DESCRIPTION I claim: 1.
A control arrangement for a motor vehicle having an internal combustion engine and an automatic transmission comprising: an engine control unit in which engine control commands are stored; a transmission control unit in which transmission control commands are stored; and a changeover device connected to the engine control unit and/or to the transmission control unit to activate country-specific engine and/or transmission control commands in at least one of the control units.
2.
A control arrangement according to claim 1 wherein the changeover device comprises a switch in the motor vehicle or on at least one of the control units.
3.
A control arrangement according to claim 1 wherein the changeover device comprises an input interface in the vehicle through which changeover signals can be conducted to the engine control unit and the transmission control unit from an external source.
4.
A control arrangement according to any one of claims 1 to 3, wherein the country-specific engine and/or transmission control commands relate to country-specific fuel consumption regulations, exhaust-gas emission regulations and/or maximum vehicle speeds.
Description:
BACKGROUND OF THE INVENTION This invention relates to controllers for motor vehicles having an internal combustion engine and an automatic transmission and a control unit for controlling the operation of the engine and the transmission.
U.
S.
Pat.
No.
5,396,420, for example, discloses a control arrangement for an automatic motor vehicle transmission and for an internal combustion engine of a motor vehicle, in which shifting and engine control characteristics are stored.
Depending on the desired power output, the driving behavior of the driver and the particular driving situation, the control arrangement assures the availability of the desired engine torque, as well as, for example, that the automatic transmission is shifted appropriately with respect to full consumption or power output.
Since motor vehicles are marketed worldwide, such engine and transmission control commands must be adapted country-by-country so that it is possible to observe for each country the particular national statutory provisions with respect to fuel consumption, exhaust-gas emission and, if appropriate, also maximum speed
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Exercise Devices 
