Patent ID: 9038597
Filing Date: 2015-05-26
Classification: F02D

Abstract:
1. An electronic throttle control apparatus comprising: a motor that drives an electronic throttle valve for adjusting an amount of intake air in an internal combustion engine; an angle detection unit that detects an angle information of said electronic throttle valve; an electric power supply unit that supplies electric power to said motor; and a control unit configured to generate an electric power supply command to said motor based on the angle information, and control a supply of the electric power to said motor by said electric power supply unit; wherein, when an occurrence of an abnormality of the angle detection unit is detected at a first time point, a throttle valve driving direction is changed from an opening direction to a closing direction, and said control unit is further configured to generate the electric power supply command to said motor and to control, at a second time point subsequent to the first time point, changing a closing angle of the electronic throttle valve, which is a throttle angle in the closing direction immediately after the occurrence of the abnormality, to an actual throttle angle coincident with a last opening throttle angle in an opening direction immediately prior to the first time point, based on the angle information detected before the occurrence of the abnormality.