Torque converter clutch lockout hydraulic system

Details Torque converter clutch lockout hydraulic system Torque converter clutch lockout hydraulic system

1996-02-20

1997-06-10

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Including fluid drive

477169, F16H 6114

Patent

active

056370539

ABSTRACT:
A system for controlling operation of a bypass clutch for a torque converter in an automatic transmission includes a converter lockout valve for producing a pressure signal having a first magnitude indicating unlocked operation of the converter clutch and a second magnitude representing locked operation, the pressure magnitudes being produced in response to control pressures representing engine speed, transmission operation in any forward gear, and in a first forward gear.

REFERENCES:
patent: 4046033 (1977-09-01), Hashimoto et al.
patent: 4095486 (1978-06-01), Ohnuma
patent: 4720003 (1988-01-01), Murosugi
patent: 5029087 (1991-07-01), Cowan et al.
patent: 5035308 (1991-07-01), Baba et al.
patent: 5058716 (1991-10-01), Lippe et al.
patent: 5303616 (1994-04-01), Palansky et al.
patent: 5389046 (1995-02-01), Timte et al.

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