Patent ID: 7443121
Filing Date: 2008-10-28
Classification: F16H,H02K

Abstract:
1. An actuator control system comprising an electric actuator which has a displacement member displaced by a rotary driving force of a rotary driving source transmitted via a driving force-transmitting shaft, and a control unit which is provided for said electric actuator, wherein said electric actuator is provided with a buffering mechanism which absorbs impact applied to said displacement member; and said control unit comprises current-detecting means which detects a current supplied to said rotary driving source, comparing means which compares a detection signal from said current-detecting means with a preset reference current, and current-limiting means which, without cutting off supply of said current to said rotary driving source, limits said current so that said current supplied to said rotary driving source does not exceed said reference current when a load is applied to said rotary driving source while maintaining an energized state and a drive shaft of said rotary driving source is stopped to give a restricted state.