Control system for automatic transmission
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsAtsushi Tabata, Masato Kaigawa
Life of this patent
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Abstract
A control system for an automatic transmission connected to an engine, in which a fundamental throttle opening is set with a predetermined delay characteristic from a depression stroke of an accelerator pedal and in which a present throttle opening is set with an inevitable delay and with a selective delay control for the fundamental throttle opening. A gear stage to be set in the automatic transmission is decided on the basis of the fundamental throttle opening, and an oil pressure to be fed to a frictional engagement unit for achieving a gear stage is set on the basis of the present throttle opening.
Claims20
A control system for an automatic transmission connected to an engine, in which a fundamental throttle opening is set with a predetermined delay characteristic from a depression stroke of an accelerator pedal and in which a present throttle opening is set with an inevitable delay and with a selective delay control for the fundamental throttle opening, comprising:
- shift decision means for deciding a gear stage to be set in said automatic transmission, on the basis of said fundamental throttle opening;
- and
- oil pressure adjusting means for setting an oil pressure to be fed to a frictional engagement unit for achieving a gear stage, on the basis of said present throttle opening.
Dependencies are inferred from the claim text.