Power shifter control system

摘要

A power shifter control system transmits a shifting action of a change lever (1) via a shift cable (5) to a power shifter (2), which includes a motor (3) for amplifying the transmitted shifting action force and providing an amplified shifting action force to a transmission. The power shifter control system comprises a displacement sensor (6) for detecting displacement of the power shifter (2), and a controller (4) for controlling the driving of the motor (3) according to an output signal provided from the displacement sensor (6). The controller (4) includes a shifting speed detector (41) for calculating a shifting speed according to an output signal provided from the displacement sensor (6), and a motor drive characteristic computer (42) for controlling the shifting force to be constant by increasing the rate of increase of driving force of the motor (3) with increasing shifting speed calculated in the shifting speed calculator (41). The shifting force can be always held constant irrespective of changes in the speed of the shifting action of the change lever (1). A shift operation controller (46) prevents erroneous shifting operation. A shift suitability controller (53) is provided for interrupting power supply to the motor within a predetermined period of time after the end of a shifting operation.