Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Patent
1997-06-03
1998-07-14
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
477 64, 477176, F16H 6114
Patent
active
057795959
ABSTRACT:
An apparatus for controlling a lock-up clutch between pump and turbine impellers in a fluid-filled power transmitting device of a motor vehicle, such that a slip control device controls the actual slip speed of the lock-up clutch so as to coincide with a transient target slip speed, the apparatus including a device for calculating a final target slip speed of the lock-up clutch which assures a maximum fuel economy of the vehicle during a steady-state running, a device for setting, as an initial value of the transient target slip speed, a difference between the speeds of the pump and turbine impellers immediately before an operation of the slip control device is initiated, and a device for reducing the transient target slip speed toward the final target slip speed at a rate which decreases as the transient target slip speed approaches the final target slip speed.
REFERENCES:
patent: 5018068 (1991-05-01), Aoki et al.
patent: 5484354 (1996-01-01), Vukovich et al.
patent: 5496233 (1996-03-01), Ishiguro
patent: 5616100 (1997-04-01), Sakai et al.
patent: 5662552 (1997-09-01), Fukasawa et al.
Honda Atsushi
Kono Katsumi
Nakamura Shinya
Ta Khoi Q.
Toyota Jidosha & Kabushiki Kaisha
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