192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1981-09-11
1984-11-06
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 0076, 192 0092, B60K 4128
Patent
active
044807325
ABSTRACT:
A system for controlling an electro-magnetic clutch of an internal combustion engine mounted on a vehicle, which has a drive member secured to a crankshaft of the internal combustion engine, magnetizing coil provided in the drive member, a driven member adjacent to the drive member, and a transmission secured to the driven member having multi-stage change gears. A car speed sensor is provided for producing an output signal when the speed of the vehicle exceeds a predetermined speed and a transmission sensor is provided for producing an output signal when a change gear having a small reduction ratio, such as 3rd- or 4th-gear, is selected. A pulse generator is provided for producing an output signal in proportion to the ignition pulse of the engine and an electric circuit is provided for controlling the current passing through the magnetizing coil in dependency on the output signal of the pulse generator. Output signals from the car speed sensor and the transmission sensors are applied to a gate circuit to correct the current passing through the magnetizing coil. The gate circuit is so arranged that, upon receiving the output signals, the current is decreased to provide a small clutch torque, thereby preventing car knock which can occur when driving at a relatively higher speed with a gear of small reduction ratio.
REFERENCES:
patent: 2990927 (1961-07-01), Steadman
patent: 4091902 (1978-05-01), Hamada
patent: 4172505 (1979-10-01), Rabus et al.
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Krizmanich George H.
Manley M.
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