Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER CONTROLLER, AND ELECTRIC VEHICLE EQUIPPED WITH THE SAME
Document Type and Number:
Japanese Patent JP2008199782
Kind Code:
A
Abstract:

To provide a power controller capable of preventing an increase in system voltage without consuming an excessive regenerative power, and to provide an electric vehicle equipped with the same.

When the power balance of a motor generator is suddenly changed due to a sudden change of a travelling situation to cause an excessive power over the charging power tolerance value of a battery device or the withstand voltage of a capacitor C2, a capacitor C3 is connected between the neutral point N1 of a three-phase coil 12 and the neutral point N2 of a three phase coil 14. The controller generates a voltage difference between the neutral points N1, N2 based on voltage VH by controlling the zero voltage vector of inverters 20, 30 to accumulate the generated excessive power in the capacitor C3.


Inventors:
NAKAMURA MAKOTO
Application Number:
JP2007032125A
Publication Date:
August 28, 2008
Filing Date:
February 13, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA MOTOR CORP
International Classes:
H02P5/74; B60K6/445; B60L3/00; B60L7/14; B60L9/18; B60L50/16; B60W10/26; B60W20/00
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Tadashi Muto