Title:
電気駆動車輌のリレー制御装置及び方法
Document Type and Number:
Japanese Patent JP5591835
Kind Code:
B2
Abstract:
Disclosed is a relay control apparatus and method for electric drive vehicles. The apparatus controls turn-off of a relay operative to connect an electric drive unit with a battery pack for supplying electrical power to the electric drive unit, and comprises a current sensor for measuring and outputting a residual current flowing between the battery pack and the electric drive unit; and a controller for, in a situation requiring turn-off of the relay, receiving the measured residual current value, comparing the measured residual current value with a reference value for the residual current, and controlling to maintain the ON-state of the relay or to turn off the relay on the basis of the comparison results. Accordingly, it prevents a relay of electric drive vehicles from being damaged due to over-current such as a surge current, at the time of turning off the relay.
Inventors:
Jun, チャン‐ギ
Kim, ジュ‐ヤン
A can, ジュン‐スー
Kim, チョル‐テク
Kim, Dawe Yoon
Kim, ジュ‐ヤン
A can, ジュン‐スー
Kim, チョル‐テク
Kim, Dawe Yoon
Application Number:
JP2011552886A
Publication Date:
September 17, 2014
Filing Date:
March 03, 2010
Export Citation:
Assignee:
Elgey Kem Limited
International Classes:
H02H7/00; B60L3/00
Attorney, Agent or Firm:
Katsunuma Hirohito
Yukitaka Nakamura
Takeshi Katada
Yukitaka Nakamura
Takeshi Katada