Method of and apparatus for regulating crawling movements of mot

Details Method of and apparatus for regulating crawling movements of mot Method of and apparatus for regulating crawling movements of mot

1997-11-13

1999-08-24

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

With clutch control

477 84, B60K 4122

Patent

active

059417927

ABSTRACT:
A power train in a motor vehicle has an automated clutch which is operated by a control unit by way of an actuator. The control unit receives signals from various parts of the engine, from the brake or brakes and from the transmission; such signals are processed and transmitted to the clutch by way of the actuator so that, when the vehicle is to carry out a crawling movement, the torque being transmitted by the then partly engaged clutch is properly related to the engine torque to ensure a predictable crawling movement of the vehicle regardless of eventual shifts of the operating point of the clutch and/or fluctuations of other parameters of the engine, transmission and/or clutch. The crawling movement can begin when the brake(s) is or are idle, the gas pedal is not depressed, and the engine is running; and crawling movement begins in response to shifting of the transmission into gear.

REFERENCES:
patent: 4618043 (1986-10-01), Hattori et al.
patent: 5176234 (1993-01-01), Reik et al.
patent: 5632706 (1997-05-01), Kremmling et al.

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