Interrelated power delivery controls – including engine control – Clutch control – Engine controlled by clutch control
Patent
1995-04-04
1997-07-29
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Clutch control
Engine controlled by clutch control
477110, 477 62, 477175, F16H 4500
Patent
active
056517521
ABSTRACT:
A lock-up controller of a lock-up control system reads-in a vehicle speed V, a throttle opening degree TVO, an engine speed Ne, and a turbine speed Kt from sensors and outputs a fuel-out command and a fuel-supply restart command to an engine controller, to operate a lock-up clutch in a torque converter of an automatic transmission for an automotive vehicle in an accelerator-off (coasting) state of the vehicle. The lock-up control system makes it possible to realize locking-up of the torque converter providing an improved fuel consumption ratio of the engine and a large braking force from the engine, even when a vehicle speed increases due to running down a downward slope while the accelerator-off state continues, or when an up-shifting speed change occurs due to the accelerator-off state.
REFERENCES:
patent: 4484497 (1984-11-01), Hibino
patent: 4881627 (1989-11-01), Ishii
patent: 4944199 (1990-07-01), Okino et al.
patent: 5141089 (1992-08-01), Nobumoto et al.
patent: 5201250 (1993-04-01), Kato et al.
"Service Manual for RE4R01A-Type Automatic Transmission", Nissan Motor Co., Ltd., 1987, Part I, pp. 13-14, 28-30 and 74-75.
Hayasaki Koichi
Wakahara Tatsuo
Nissan Motor Co,. Ltd.
Ta Khoi Q.
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