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Patent Searching and Data


Title:
HYBRID ELECTRIC CAR
Document Type and Number:
Japanese Patent JP2008308157
Kind Code:
A
Abstract:

To provide a hybrid electric car for preventing any abnormal torque when starting an inverter due to the erroneous discrimination of polarity.

This hybrid electric car is provided with: an internal combustion engine; a permanent magnet motor; a clutch; and an invertor for estimating a magnetic pole position by a first magnetic pole position estimation means when the permanent magnet motor rotates at low speed, and for estimating the magnetic pole position by a second magnetic pole position estimation means when the permanent magnet motor rotates at middle speed and high speed. In the case of interrupting the clutch, and making a vehicle travel with the permanent magnet motor as a driving force source, when the invertor detects any restartable abnormality, and stops, the invertor is not restarted, but the clutch is connected, and the vehicle is made to travel with an internal combustion engine as the driving power source.


Inventors:
MORIMOTO KENJI
SHIBATA HISANORI
Application Number:
JP2008127123A
Publication Date:
December 25, 2008
Filing Date:
May 14, 2008
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
B60W10/08; B60K6/48; B60K6/54; B60L3/00; B60L50/16; B60W10/02; B60W10/06; B60W20/00
Attorney, Agent or Firm:
Hiroshi Horiguchi