192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1977-12-15
1980-04-29
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 0092, 192105R, F16D 2312
Patent
active
042001757
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.
REFERENCES:
patent: 3628642 (1971-12-01), Ravenel
patent: 3738460 (1973-06-01), Noborv et al.
patent: 3752284 (1973-08-01), Brittain et al.
patent: 4019614 (1977-04-01), Prenzel
Krizmanich George H.
Voith Getriebe KG.
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