Electronically controlled automatic transmission

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position

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Details

74856, 74861, 3644241, B60K 4118

Patent

active

051899310

ABSTRACT:
An electronically controlled automatic transmission includes a device for calculating an actual engine load from an engine speed and a value detected by a device for detecting a state of engine intake air; a device for determining an engine load expected from a throttle opening and the engine speed; and a device for determining a correction coefficient from the two engine loads. A throttle opening detected is corrected by the correction coefficient, and a required control oil pressure is determined from the corrected throttle opening. The required control oil pressure may alternatively be directly corrected by the correction coefficient, or a throttle-opening dividing point for setting a speed-change point may be altered by the correction coefficient.

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patent: 4488456 (1984-12-01), Taga et al.
patent: 4552036 (1985-11-01), Takano et al.
patent: 4736301 (1988-04-01), Osanai
patent: 4836055 (1989-06-01), Suzuki
patent: 4836056 (1989-06-01), Nakawaki
patent: 4939957 (1990-07-01), Asano et al.
patent: 4982621 (1991-01-01), Sano
patent: 5050454 (1991-09-01), Yamaguchi et al.

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