AUTOMATIC TRANSMISSION SYSTEM

摘要

The transmission system produces a signal relating to the speed of the vehicle, and a signal relating to the amount of operation of an accelerator pedal. A third signal is produced, relating to the load of the vehicle. A control is responsive to the signals for producing a control signal to the actuator to shift the gear-type transmission into a target gear position. The control has a memory for storing one set of map data indicating gear positions determined by the amount of operation of the accelerator pedal and the speed of the vehicle. The target gear position is determined on the basis of the map data. The gear change operation is automatically carried out taking into account the load of the vehicle at each instant.