Automatic clutch control for coasting with brake-condition respo

Details Automatic clutch control for coasting with brake-condition respo Automatic clutch control for coasting with brake-condition respo

1999-02-19

2000-02-15

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Clutch control

With brake control

477175, 192 13R, 192 363, B60K 4124, B60K 4128

Patent

active

060246731

ABSTRACT:
In a vehicle with an automatically controlled clutch in which ON-OFF of the friction clutch is automatically controlled by a controller, clutch control during coasting (with the accelerator depression amount being 0%) is conducted according to a clutch ON-OFF map for coasting provided in the controller.
Two different clutch ON-OFF maps for coasting are provided; one having a smaller hysteresis width, and the other having a larger hysteresis width. Clutch control during coasting is conducted by applying the map with a smaller hysteresis width when the brake pedal is stepped on or applying the map with a larger hysteresis width when the brake pedal is not stepped on. Thus, clutch ON-OFF hunting can be avoided, and smooth stopping can be conducted.

REFERENCES:
patent: 4838397 (1989-06-01), Kurihara et al.
patent: 5484353 (1996-01-01), Lux et al.

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