Temperature control system for a vehicle power train

Details Temperature control system for a vehicle power train Temperature control system for a vehicle power train

1995-05-26

1997-02-11

Luong, Vinh T.

Interrelated power delivery controls, including engine control

Transmission control

Control by sensed ambient condition, pattern indicia,...

477105, 477110, F16H 5972

Patent

active

056015119

ABSTRACT:
A control system for a power train of an automotive vehicle prevents thermally overloaded state of a hydraulically controlled automatic transmission when a severe thermal load condition of an engine is maintained for a predetermined time. An engine controller is supplied with signals representing a throttle opening, an engine speed and a vehicle speed, and performs an engine torque reduction control when the transmission has been judged to be under a thermally overloaded condition, so as to prompt a driver to effect a downshifting and thereby eliminate an overloaded state of the transmission.

REFERENCES:
patent: 4389910 (1983-06-01), Lockhart
patent: 4733581 (1988-03-01), Hasegawa et al.
patent: 4968999 (1990-11-01), Fodale et al.
patent: 5072630 (1991-12-01), Kiluchi et al.
patent: 5383824 (1995-01-01), Runge et al.
patent: 5433676 (1995-07-01), Abe et al.

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