Electronic clutch management system for motor vehicles with inte

Details Electronic clutch management system for motor vehicles with inte Electronic clutch management system for motor vehicles with inte

1993-07-26

1995-09-12

Pitts, Andrea L.

Interrelated power delivery controls, including engine control

Clutch control

Condition responsive control

477 78, 477 86, 477906, B60K 4102

Patent

active

054493315

ABSTRACT:
An electronic clutch management system for motor vehicles with engines having butterfly valves. An actuator under the control of a micro-controller activates a clutch between the engine and a transmission as a function of an ECM sensor which senses the position of the butterfly valve. If the micro-controller breaks down or is disturbed in its function, the micro-controller control is switched off, and control of the actuator element is switched over from the micro-controller to a comparator which is driven directly by the ECM sensor and controls the actuator element to activate the clutch, i.e., into its disengaged or engaged position, in a sense opposite to the position of the butterfly valve.

REFERENCES:
patent: 4403682 (1983-09-01), Norris et al.
patent: 4449617 (1984-05-01), Sakakiyama et al.
patent: 4872540 (1989-10-01), Sekine et al.
patent: 5094333 (1992-03-01), Mimura
patent: 5190130 (1993-03-01), Thomas et al.
patent: 5291803 (1994-03-01), Yamaguchi

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