Power supply control apparatus and method for hybrid vehicle

Details Power supply control apparatus and method for hybrid vehicle Power supply control apparatus and method for hybrid vehicle

2007-07-11

2011-10-18

Hanh, Nguyen N (Department: 2834)

Prime-mover dynamo plants

Electric control

Engine control

Reexamination Certificate

active

08039976

ABSTRACT:
When the temperature of an engine and a main battery is low at the time of activating a vehicle system, an ECU starts the engine in advance and outputs a running permission signal after completion of engine startup. At this stage, the ECU suspends a defect diagnosis operation on a subsidiary load and feedback-controls the DC/DC converter by setting the voltage control value to a level lower than the output voltage from the subsidiary battery and at least the lower limit of the operating voltage of the ECU. The ECU feedback-controls the DC/DC converter by setting the voltage control value to a level of at least the output voltage of the subsidiary battery in response to completion of engine start-up. Then, the suspension of the defect diagnosis operation on the subsidiary load is canceled and a running permission signal is output.

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Mar. 2, 2010 Office Action issued in Russian Patent Application No. 2009114739/11(020089) (with translation).

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