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Patent Searching and Data


Title:
AUTOMATIC CLUTCH CONTROL DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JPH02109747
Kind Code:
A
Abstract:

PURPOSE: To prevent a sudden engine brake and shock by making rising of a clutch torque up loosely correctable when 2 wheel speed is recovered rapidly 2nd an automatic clutch is engaged and controlled in the case that the brake is released, at the time of braking accompanied with tire lock on a low μ road.

CONSTITUTION: A wheel speed detecting unit 40 to which a revolution speed Ns of a secondary pulley on the output side of a continuously variable transmission is inputted, is provided. A wheel speed Vw is detected corresponding to a vehicle speed by multiplying the secondary pulley revolution speed Ns by a gear ratio between a reduction gear 5 and a differential gear 7. A deceleration speed is calculated by inputting the wheel speed Vw to a deceleration speed calculation unit 41, and the tire lock is judged by a tire lock judging unit 42 based on the deceleration speed and the set up value. Tire lock release is judged by a tire lock release judging unit 43 according to the tire lock signal and the wheel speed Vw. When the lock is released, the rising of a direct electric current at a directly-coupled vehicle speed is corrected moderately according to lease signal by an electric current correcting unit 44 added to the output side of a directly-coupled mode electric current setting unit 37.


Inventors:
MIYAWAKI MOTOHISA
Application Number:
JP26209388A
Publication Date:
April 23, 1990
Filing Date:
October 18, 1988
Export Citation:
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Assignee:
FUJI HEAVY IND LTD
International Classes:
B60W10/02; B60W10/04; B60W10/10; F16D37/02; F16D48/06; (IPC1-7): B60K41/02; F16D37/02
Domestic Patent References:
JPS56149223A1981-11-19
JPS60161224A1985-08-22
Attorney, Agent or Firm:
Nobuhiro Kobashi (1 outside)