| 摘要 |
PURPOSE:To reduce and prevent the noise generated in a manual operating speed change gear by controlling the delay-angle of the ignition-timing of an internal-combustion engine according to the oil temperature of the manual operating speed change gear, when the internal-combustion engine of a vehicle is in the idling state. CONSTITUTION:When a manual speed change gear and an internal-combustion engine mounted onto a car are in the idling state (P1), the delay-angle control for the ignition-timing of the internal-combustion engine is carried out according to the oil temperature of the manual operating speed change gear (P2). Said oil temperature is detected by an oil temperature sensor installed onto the manual speed change gear or is estimated from the operation state of the internal-combustion engine. Thus, the torque variation can be reduced, and the noise generated in the manual speed change gear can be reduced. |
