Transmission control with electronic governor and trim boost

Details Transmission control with electronic governor and trim boost Transmission control with electronic governor and trim boost

1993-06-07

1995-03-21

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477131, 477906, F16H 6100

Patent

active

053991303

ABSTRACT:
A transmission control has a redundancy control for upshift and downshift control of friction torque transmitting devices in a power transmission. The control solenoid valves providing for continued governor and accumulator trim boost in the event of a malfunction, in either the electrical system or the hydraulic system, which affects the governor pressure schedule. A reverse control signal, from a manual valve, is effective to remove the malfunctioning solenoid valve from effective operation in the control.

REFERENCES:
patent: 4308764 (1982-01-01), Kawamoto et al.
patent: 4485695 (1984-12-01), Kawamoto
patent: 5033331 (1991-07-01), Takada et al.
patent: 5191815 (1993-03-01), Kouta

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