Patent ID: 6026342
Filing Date: 2000-02-15
Classification: B60W,F16H,Y10T

Abstract:
In a motor vehicle having an engine, an automatic transmission and a chassis, a control unit, comprising:a computer-controlled transmission ratio changing device;an engine control unit;a communication channel connected between said computer-controlled transmission ratio changing device and said engine control unit for transferring data from said computer-controlled transmission ratio changing device to said engine control unit to bring about a reduction in engine torque when a transmission ratio of the transmission is modified;a transmission control unit having functional units integrated in said engine control unit and dependent on data from the engine and from the chassis of the motor vehicle;said computer-controlled transmission ratio changing device of the transmission having functional units integrated therein and dependent on data from the transmission; andsaid communication channel exchanging data and configuration parameters used for selection of the transmission ratio between said engine control unit and said transmission ratio changing device.