Control device for a motor vehicle clutch
First Claim
1. Apparatus for controlling the operation of a clutch of the type which selectively couples a vehicle engine to a gear changing mechanism, said apparatus comprising:
- (A) clutch control means for moving said clutch between an engaging and disengaging position as a function of a control signal applied thereto;
(B) control circuit means for generating said control signal as a function of the rotary speed of said engine and the speed of said vehicle, said control circuit to vary said control signal during each engagement of said cluth as a function of two components;
(1) a first component which initially varies as a substantially linear function of the speed of the vehicle and thereafter varies as a positive exponential function of the speed of the vehicle; and
(2) a second component which varies as a substantially linear function of the speed of said engine, said first and second components varying in a direction which drives the clutch further into engagement for increasing vehicle and engine speeds, respectively.
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Accused Products
Abstract
A device for controlling a motor vehicle clutch is disclosed. A hydraulic control system coupled to the disengagement lever of a clutch selectively engages and disengages the clutch responsive to a control signal. The control signal is generated by a control circuit which receives a first signal representative of the speed of the vehicle and a second signal representative of the rotary speed of the engine. The control circuit varies the control signal during each engagement of the clutch as a function of two components: a first component which initially varies as a substantially linear function of the speed of the vehicle and thereafter varies as a positive exponential function of the speed of the vehicle; and a second component which varies as a substantially linear function of the speed of the engine. Both components vary in a direction which drives the clutch further into engagement for increasing vehicle and engine speed.
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Citations
12 Claims
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1. Apparatus for controlling the operation of a clutch of the type which selectively couples a vehicle engine to a gear changing mechanism, said apparatus comprising:
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(A) clutch control means for moving said clutch between an engaging and disengaging position as a function of a control signal applied thereto; (B) control circuit means for generating said control signal as a function of the rotary speed of said engine and the speed of said vehicle, said control circuit to vary said control signal during each engagement of said cluth as a function of two components; (1) a first component which initially varies as a substantially linear function of the speed of the vehicle and thereafter varies as a positive exponential function of the speed of the vehicle; and (2) a second component which varies as a substantially linear function of the speed of said engine, said first and second components varying in a direction which drives the clutch further into engagement for increasing vehicle and engine speeds, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification