Power switchover apparatus for a hybrid vehicle

Details Power switchover apparatus for a hybrid vehicle Power switchover apparatus for a hybrid vehicle

2007-12-04

2007-12-04

Estremsky, Sherry (Department: 3681)

Interrelated power delivery controls, including engine control

Plural engines

Electric engine

C477S077000, C903S930000

Reexamination Certificate

active

11168445

ABSTRACT:
To provide a power switchover apparatus for a hybrid vehicle, which can perform power switchover smoothly. Target follow-up control is started, and when the engine speed reaches a clutch-in speed of a starter clutch, the input power shaft of a continuously variable transmission starts rotation. The speed of the output power shaft also begins to gradually rise in response to the starting of rotation. The engine speed then reaches a target, and transmission ratio raising control of raising the transmission ratio based on the difference between the motor speed of a drive shaft and the speed of a driven side pulley is started. The motor speed Nm of the drive motor and the speed of the driven side power transmission pulley then become equal to each other and the one-way clutch is placed into a connected state. Consequently, the transmission ratio raising control is stopped and normal control is entered.

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