Gear shift control for an automatic transmission of a vehicle

Details Gear shift control for an automatic transmission of a vehicle Gear shift control for an automatic transmission of a vehicle

1984-04-23

1986-04-29

Krizmanich, George H.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74752A, 3644241, B60K 4118

Patent

active

045849064

ABSTRACT:
A vehicle automatic transmission including a hydraulic torque converter, a multiple stage gear mechanism and an electronic controller for controlling the gear mechanism to select an appropriate gear stage in accordance with vehicle operating conditions. The electronic controller has a first gear shift control map for controlling the gear mechanism under normal vehicle operations. It further has a second gear shift control map for operations under a traffic jam so that a better fuel economy is established than in an operation under the first map.

REFERENCES:
patent: 3667325 (1972-06-01), Ito et al.
patent: 3684066 (1972-08-01), Kubo et al.
patent: 3702572 (1972-11-01), Wakamatsu et al.
patent: 3713351 (1973-01-01), Sakakibara et al.
patent: 4338666 (1982-07-01), Suzuki et al.
patent: 4507736 (1985-03-01), Klatt
patent: 4523281 (1985-06-01), Noda et al.

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