Controlling lockup clutch and shifts as a function of cruise mod

Details Controlling lockup clutch and shifts as a function of cruise mod Controlling lockup clutch and shifts as a function of cruise mod

1998-05-06

2000-01-25

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477107, 477174, F16H 4502

Patent

active

060172908

ABSTRACT:
A control device of an automatic transmission of a motor vehicle includes lock-up control means for controlling a coupling state between input and output elements of a torque converter clutch. This control device is used with an engine, which includes an electronic throttle control device that electrically controls a throttle valve, accelerator position detecting means for detecting an accelerator pedal position, a cruise control device that controls an opening of the throttle valve to maintain a vehicle speed at a predetermined vehicle speed, for enabling constant-speed running of the vehicle, and target throttle opening setting means for calculating a pseudo accelerator pedal position, and setting a target throttle opening based on the pseudo accelerator pedal position, when the cruise control device is in operation. The lock-up control means receives information as to whether the cruise control device is in operation or not, controls the coupling state of the torque converter clutch based on the pseudo accelerator pedal position if the cruise control device is in operation, and controls the coupling state based on the accelerator pedal position detected by the accelerator position detecting means if the cruise control device is not in operation.

REFERENCES:
patent: 5074371 (1991-12-01), Shibayama
patent: 5119899 (1992-06-01), Johnson et al.
patent: 5129475 (1992-07-01), Kawano et al.
patent: 5382206 (1995-01-01), Oda et al.
patent: 5507705 (1996-04-01), Hara
patent: 5623408 (1997-04-01), Motamedi et al.
patent: 5665026 (1997-09-01), Linden
patent: 5758306 (1998-05-01), Nakamura

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