Automatic clutch control system

Details Automatic clutch control system Automatic clutch control system

1982-03-12

1985-07-16

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0076, 192 0092, 192 358, B60K 4128

Patent

active

045290725

ABSTRACT:
A system is provided which controls the pressure with which a clutch engages, utilizing a slip rate of the clutch which is equal to the ratio of the rotational speed of the output shaft to the rotational speed of the drive shaft thereof as a main parameter. A microprocessor reads a throttle opening and the slip rate at a time interval of 0.4 sec from the initiation of the clutch engagement, and accesses a particular group of clutch engagement controlling data which correspond to the time l elapsed and to these parameters. The controlling signals of the particular group are sequentially outputted to the clutch energizing device at a subinterval of 0.05 sec during the time interval of 0.4 sec. The interval changes from l=0 to l=8 at maximum, from the initiation to the completion of the clutch engagement. Each interval l=0 to l=8 corresponds to 0.4 sec. Whenever a temporary clutch activation is instructed, the microprocessor increases the subinterval of 0.05 sec to 0.1 sec and the time interval l to 0.8 sec. The value of l is incremented by one after a time length of either 0.4 or 0.8 sec elapses.

REFERENCES:
patent: 3645366 (1972-02-01), Numazawa et al.
patent: 3752284 (1973-08-01), Brittain et al.
patent: 4081065 (1978-03-01), Smyth et al.
patent: 4343387 (1982-08-01), Hofbauer

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