Electric switch apparatus for automobile power train clutch

摘要

In an automotive power train using a manually shiftable transmission unit and an automatically controlled clutch unit, the clutch unit is operated by an actuator device including an electromagnetic control. This electromagnetic control is controlled by means of an electric switch apparatus comprising a stroke switch assembly and a knob switch assembly. The stroke switch assembly includes a parallel connected combination of first and second switches to be closed in response to the movement of a transmission gearshift in different directions opposite to each other and the knob switch assembly includes a parallel connected combination of third and fourth switches to be opened in response to the movement of a gearshift knob in opposite directions. These switches are controlled in accordance with predetermined schedules.