Electricity: motive power systems – Positional servo systems
Patent
1989-11-06
1990-08-21
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
318663, 123342, 123352, 123400, 180197, B60K 2816, B60K 3100, F02D 908
Patent
active
049509659
ABSTRACT:
A servoactuator for a vehicle throttle having a direct current motor driving a speed reducer with the output thereof connected to slidably move a fulcrum member having a lever arm pivoted thereon. The lever arm has a cable to the engine throttle connected to one end and a cable to the vehicle accelerator pedal connected to the other end on the opposite side of the pivot. In one embodiment the speed reducer drives an axial lead screw threaded in the fulcrum member. In a second embodiment the speed reducer output is a slotted crank arm having a pin on the fulcrum member slidably received therein. In a third embodiment the speed reducer output is connected by a two-bar linkage to the fulcrum member. A potentiometer is disposed to have the movable element thereof moved by one end of the lever to provide a throttle position feedback signal for use by an external motor control signal generator. The servoactuator is intended for use with a vehicle traction control system.
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Haefner Donald R.
Kenny Andrew A.
Uthoff Loren H.
Eaton Corporation
Johnston R. A.
Ro Bentsu
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