CONTROL SYSTEM OF ELECTRONIC THROTTLE VALVE AND TWO-WHEELED MOTOR VEHICLE

摘要

[PROBLEMS] A control system of an electronic throttle valve, capable of restricting rapid turning of a throttle valve when an abnormality occurs in a control system. [MEANS FOR SOLVING PROBLEMS] The control system comprises a throttle valve (10) for regulating an intake air amount of an internal combustion engine, an electric motor (20) for driving the throttle valve (10), and a control section (21) for controlling the motor (20). The throttle valve (10) has a mechanism (30) for urging the throttle valve (10) in the closing direction. The motor (20) is brought into a regeneration state upon occurrence of an abnormality in the control system of the electronic throttle valve. This causes the control section (21) to control the turning speed in the closing direction of the throttle valve (10) by an urging force from the urging mechanism (30). Consequently, the throttle valve (10) is turned slowly in the closing direction by the urging force from the urging mechanism (30), and then held at a specified opening position (10b).