Automatic clutch control for coasting with brake-condition responsive hysteresis width
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United States of America Patent
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-
Feb 15, 2000
Grant Date -
N/A
app pub date -
Feb 19, 1999
filing date -
Feb 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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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.
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