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Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
Japanese Patent JP2015177698
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power conversion device that increases discharge efficiency of a capacitor while achieving cost reduction.SOLUTION: A power conversion device comprises: a collision detection unit 101 for detecting a collision of a vehicle; power conversion units 102, 103 which include a plurality of switching elements, and convert DC power supplied from a battery 105 into AC power; a system relay 104 which is provided between the battery 105 and the power conversion units 102, 103, and is shut off when the vehicle collision is detected; temperature sensors 110, 111 for detecting the temperatures of the power conversion units 102, 103; smooth capacitors 108, 109 for changing the voltage between both terminals on the basis of the switching frequencies of the switching elements; and a control unit 106 for increasing the switching frequencies and controlling so as to bring the voltage to a predetermined value or below when the vehicle collision is detected, and the temperatures are detected to satisfy a predetermined range.

Inventors:
KANDA YASUTAKA
Application Number:
JP2014054061A
Publication Date:
October 05, 2015
Filing Date:
March 17, 2014
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
B60L3/04; B60L9/18; H02H5/10; H02M3/155; H02M7/48
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito