192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1979-09-27
1981-09-15
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 0076, 192 0096, 192 358, B60K 4102
Patent
active
042892228
ABSTRACT:
Possible damage to a clutch caused by engagement or disengagement when the engine is running at a high speed is prevented by an engine-clutch control interlock system which prevents the clutch from being engaged or disengaged except when the engine is running at a speed below a nominal, selected idle speed. The system comprises an engine speed monitor which produces a speed signal indicative of whether the engine is running above or below the selected idle speed, a clutch control monitor which produces a signal indicative of whether or not a clutch actuator control signal is being generated and a clutch status monitor which produces a signal indicative of whether the clutch is engaged or disengaged. A clutch actuator signal is conducted to the clutch either to engage or disengage it only when the monitors indicate that a clutch control signal is being generated and the engine is running below the nominal idle speed. A speed control signal is conducted to the engine speed controller only when the clutch status monitor indicates that a disengaged clutch has engaged.
REFERENCES:
patent: 2788872 (1957-04-01), Winther
patent: 2944645 (1960-07-01), Markham
patent: 3177992 (1965-04-01), Ayers
patent: 3244262 (1966-04-01), Heidner
patent: 3273679 (1966-09-01), Uher
Bird-Johnson Company
Krizmanich George H.
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