Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1993-10-13
1995-10-24
Ta, Khoi O.
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477155, 477906, F16H 6112, F16H 5968
Patent
active
054605822
ABSTRACT:
An automatic transmission having multiple-ratio gearing, fluid pressure-operated clutches and brakes adapted to establish and to disestablish multiple torque ratios and electronic shift control solenoids that can be energized and de-energized under the control of an electronic microprocessor that senses transmission operating variables, and a control strategy inherent in the microprocessor that uses predetermined failure modes to perform functional testing on the shift solenoids without special hydraulic and electronic hardware for developing the diagnostic information that detects shift solenoid failures or malfunctions.
REFERENCES:
patent: 4951205 (1990-08-01), Lowe et al.
patent: 5016174 (1991-05-01), Ito et al.
patent: 5048374 (1991-09-01), Miyake et al.
patent: 5113720 (1992-05-01), Asayama et al.
patent: 5129287 (1992-07-01), Asada et al.
Eggers Pamela J.
Hathaway Richard R.
Hoffman Earl R.
Palansky Bruce J.
Ford Motor Company
May Roger L.
McKenzie Frank G.
Ta Khoi O.
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