POWER SUPPLY SYSTEM OF ELECTRIC VEHICLE AND CONTROL METHOD THEREOF

Title:

POWER SUPPLY SYSTEM OF ELECTRIC VEHICLE AND CONTROL METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2010/122648

Kind Code:

A1

Abstract:

Relays (SMR1, SMR2) are inserted between a battery (BA) and a step-up converter (12A), and relays (SR1, SR2) are inserted between a battery (BB) and a step-up converter (12B). A controller (30) controls control signals (CONT1-CONT4) for controlling open/close of the relays (SMR1, SMR2, SR1, SR2). Upon occurrence of short circuit failure of a switching element in the step-up converter (12A, 12B), the controller (30) controls turn-off of the relays (SMR1, SMR2, SR1, SR2) such that at least one of the turn-off order or timing of the relays is changed depending on the switching element in which short circuit failure has occurred.

Inventors:

MINEGISHI SHINICHIRO (JP)
YOSHIMI MASASHI (JP)

Application Number:

PCT/JP2009/058059

Publication Date:

October 28, 2010

Filing Date:

April 23, 2009

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOYOTA MOTOR CO LTD (JP)
MINEGISHI SHINICHIRO (JP)
YOSHIMI MASASHI (JP)

International Classes:

B60K6/445; B60L3/00; B60L50/15; B60L50/16; B60W10/26; B60W20/00; H01H47/00; H02M3/155; H02P27/06

Foreign References:

JP2003272499A	2003-09-26
JP2004088866A	2004-03-18
JP2007295749A	2007-11-08
JP2008005658A	2008-01-10
JP2008220084A	2008-09-18
JP2006327251A	2006-12-07

Other References: