Vehicle with automatic engine stop/restart function and...

Details Vehicle with automatic engine stop/restart function and... Vehicle with automatic engine stop/restart function and...

2005-04-19

2005-04-19

Tamai, Karl (Department: 2834)

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

C477S037000

Reexamination Certificate

active

06881170

ABSTRACT:
A vehicle with an automatic engine stop/restart function comprises an engine, an automatic transmission having an oil pump driven in synchronism with the engine to supply an oil pressure to the automatic transmission, an oil pressure controller to hold the oil pressure in the automatic transmission during an automatic stop of the engine, and a control system. The control system is configured to: determine whether the oil pressure in the automatic transmission becomes lower than a predetermined value during the engine automatic stop; shift the automatic transmission into a neutral state when the oil pressure in the automatic transmission becomes lower than a predetermined value during the engine automatic stop; restarts the engine; and then, shift the automatic transmission into a drive state after the oil pressure in the automatic transmission is increased to the predetermined value by the oil pump driven in synchronism with the engine.

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patent: 11-132321 (1999-05-01), None
patent: 2000-213389 (2000-08-01), None

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