Title:
電気自動車
Document Type and Number:
Japanese Patent JP5692018
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technology capable of preventing discharge time of a capacitor from elongating due to current produced by counter-electromotive force of a motor at collision.SOLUTION: An electric vehicle 100 includes an inverter 4 for supplying power to the motor 6, the capacitor 12, a discharge device 20, a short-circuit relay circuit 5, and a controller 2. The capacitor 12 is connected to an input terminal of the inverter 4. The discharge device 20 is a device for discharging the capacitor 12. The short-circuit relay circuit 5 switches a connection destination of a motor line 14 of UVW-three phase extruded from the motor 6 from the inverter 4 to mutual short circuiting. The controller 2 switches the connection destination of the motor line 14 from the inverter 4 to mutual short-circuiting if a signal indicating that the vehicle has collided, and causes the discharge device 20 to operate. Induction current due to counter-electromotive force of the motor does not flows into the discharge device 20, and the capacitor 12 is quickly discharged.
Inventors:
Eiji Kitano
Application Number:
JP2011253545A
Publication Date:
April 01, 2015
Filing Date:
November 21, 2011
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B60L3/04; B60L9/18; H02H5/10; H02M7/48
Domestic Patent References:
| JP2010200490A | ||||
| JP2005094883A | ||||
| JP2011166938A | ||||
| JP2009189221A | ||||
| JP2011172343A | ||||
| JP2011109737A |
Attorney, Agent or Firm:
Kaiyu International Patent Office