Control system for an infinitely variable transmission with an e

Details Control system for an infinitely variable transmission with an e Control system for an infinitely variable transmission with an e

1983-10-04

1986-08-12

Hermann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0076, 192 356, 192 215, 192103R, 474 28, B60K 4102, B60K 4128

Patent

active

046051120

ABSTRACT:
A control system for a belt-drive infinitely variable transmission. The transmission is connected to a crankshaft of an engine through an electromagnetic clutch. The control system is provided with an engine speed signal producing circuit, a vehicle speed producing circuit and an arithmetic circuit for controlling the clutch current flowing through the coil of the clutch in dependency on the engine speed signal and vehicle speed signal. The arithmetic circuit is so arranged as to cut off the clutch current when the engine speed decreases to a predetermined value which is slightly higher than an engine speed at which the engine stalls during shiftdown operation of the transmission.

REFERENCES:
patent: 4109772 (1978-08-01), Poore
patent: 4152947 (1979-05-01), Van Deursen et al.
patent: 4466521 (1984-08-01), Hattori et al.
patent: 4488625 (1984-12-01), Nobumoto et al.

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