Lock-up control system for lock-up type automatic transmission

Details Lock-up control system for lock-up type automatic transmission Lock-up control system for lock-up type automatic transmission

1982-03-29

1985-04-02

Gruber, Felix D.

Boots, shoes, and leggings

74866, 192 328, 192 358, G06F 1520, B60K 4102, B60K 4122, F16D 2716

Patent

active

045091242

ABSTRACT:
A lock-up control system is disclosed wherein the lock-up state of a torque converter is temporally released during gear shifting operation in an automatic transmission even if an automotive vehicle is operating in a predetermined lock-up range. A sensor generates an oil temperature compensation signal indicative of the temperature of oil used in the automatic transmission. The time duration of temporary release of the lock-up state is variable with variation in the oil temperature compensation signal.

REFERENCES:
patent: 3805640 (1974-04-01), Schneider et al.
patent: 4148231 (1979-04-01), Redzinski
patent: 4386521 (1983-06-01), Hamada et al.
patent: 4386687 (1983-06-01), Chevalier et al.
patent: 4414863 (1983-11-01), Heino
patent: 4422353 (1983-12-01), Suga et al.
patent: 4449618 (1984-05-01), Suga et al.
patent: 4457410 (1984-07-01), Suga et al.
patent: 4471438 (1984-09-01), Futagi et al.

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