Electric linear motion actuator

An electric linear motion actuator comprising:

• an electric motor;
• a linear moving member capable of moving between a standby position where the linear moving member is spaced apart from a target with a predetermined clearance between the linear moving member and the target and a load applying position where the linear moving member contacts the target to apply a load to the target;
• a motion converting mechanism that converts a rotational motion of the electric motor into a linear motion of the linear moving member;
• a load sensor that detects a magnitude of the load applied to the target from the linear moving member;
• and
• a controller configured to perform a feedback control in which based on a difference between the load detected by the load sensor and a load command value, the electric motor is controlled so that the load applied from the linear moving member to the target becomes equal to the load command value,
• wherein the controller comprises an overshoot suppression control means configured to reduce a number of revolutions of the electric motor when the linear moving member moves from the standby position toward the load applying position to apply a load to the target and moves into a predetermined zone immediately before the position where the clearance between the linear moving member and the target becomes zero.