The invention discloses an automobile
electronic throttle valve which comprises a main air passage, a valve, an
electric control mechanism capable of controlling opening and closing of the valve and a damping device capable of enabling the valve piece of the valve to be in the horizontal state, wherein the damping device comprises retainers B mounted on the two sides of the valve piece and a
retainer A mounted in the inner cavity of the main air passage; when an automobile is in an idling state, the valve piece is kept in the horizontal state under the action of the damping device; the
electric control mechanism comprises a
micromotor and a transmission gear; the
micromotor is a one-way motor; the transmission gear is provided with a turn-stopping device capable of preventing reverse rotation. The automobile
electronic throttle valve is convenient and accurate to operate and control; the
micromotor is the one-way motor, so that
counterforce impact can be avoided, the structure is simplified, the number of controlling devices and controlled devices is reduced, loss of parts is reduced, and the service life of the motor is prolonged; the turn-stopping device can prevent the valve from moving due to vibration caused by external force
impact; in the idling state, the damping device enables the valve piece of the valve to be kept in the horizontal state so as to ensure that an engine does not
flame out, so that the fuel consumption is decreased, and the reliability is improved.