| 摘要 |
Transmission controls are known, which are directly mounted on the vehicle's transmission to directly control the hydraulic valves (actuators) there. The engine management of the vehicle is connected to the transmission control via a communications channel configured as a CAN data bus to exchange data with the transmission control. Located furthermore in the passenger compartment is a plurality of electrical shifting components, such as a selector lever switch, a kickdown switch, or a driving program selector, which transmit different switch point and sensor signals to the transmission control via numerous single lines. To again significantly reduce the use of single signal lines using a simplest possible contacting and connecting technique, a control system is described, in which the electrical shifting elements located in the passenger compartment are connected via signal lines to an electronic control unit, which is located in the passenger compartment and linked to the data bus, and which combines the signals transmitted over the signal lines and routes them via the data bus to the transmission control. This means that the numerous signal lines do not need to be laid directly to the transmission control, but merely to the electronic control unit, which is likewise located in the passenger compartment and assumes the function of a series-connected, processor-controlled line concentrator. The outlay for the wiring harness is again greatly reduced, with the data bus now also being routed into the passenger compartment, enabling additional devices to be connected thereto. Accordingly, the control system can be easily expanded.
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