Title:
CONTROL DEVICE FOR ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/033861
Kind Code:
A1
Abstract:
Provided is a control device for an electric vehicle whereby a desired motor torque can be output on the occurrence of a problem with a traveling motor of the electric vehicle due to changes over time. This control device for an electric vehicle is equipped with: an electric control unit (ECU) (21); and inverter devices (22) each having a power circuit unit (28), including an inverter (31), and a motor control unit (29). In addition, rotation angle sensors (36) for detecting rotation angles of motors (6) are provided. Upon obtaining rotation angles of the rotors of the motors (6) from the rotation angle sensors (36), the motor control units (29) performs control in accordance with the obtained rotor rotation angles and in accordance with a torque command map (35) that defines the relationship between motor speed and torque. The motor control units (29) are each provided with a torque command map adjustment section (38) that adjusts the torque command map in accordance with a vehicle speed obtained from a vehicle speed detection means and a torque command from the ECU (21), said vehicle speed being calculated on the basis of the rotation angles detected by the rotation angle sensors (36).
Inventors:
LI GUODONG (JP)
LIU YIQING (JP)
LIU YIQING (JP)
Application Number:
PCT/JP2014/072691
Publication Date:
March 12, 2015
Filing Date:
August 29, 2014
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
LI GUODONG (JP)
LIU YIQING (JP)
LI GUODONG (JP)
LIU YIQING (JP)
International Classes:
H02P6/06; B60L15/20; H02P6/08; H02P6/16; H02P6/17; H02P6/28
Foreign References:
| JP2013074769A | 2013-04-22 | |||
| JP2000152409A | 2000-05-30 | |||
| JP2013158123A | 2013-08-15 | |||
| JP2012178919A | 2012-09-13 |
Other References:
See also references of EP 3042800A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
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