US Patent Application No: 2008/0054,839

Number of patents in Portfolio can not be more than 2000

Control Apparatus and Electric Brake Apparatus

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Importance

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Abstract

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In an apparatus using an inverter as a motor drive apparatus, continuous operation can be permitted during a motor open-phase without providing any additional switching element. Especially, in an electric brake apparatus, higher security can be assured. When a motor winding of one phase occurs an open-phase, currents are conducted to the remaining normal phases while taking the position of a rotor of motor into account to thereby generate torque of the motor. Since the motor torque can be generated continuously in the event of a phase malfunction, reliability of apparatus such as the electric brake apparatus can be improved.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI, LTD.TOKYO14249

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ajima, Toshiyuki Tokai-mura, JP 34 158
Saito, Hiroyuki Kanagawa, JP 456 2411
Sasaki, Masataka Hitachi, JP 35 134

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Patent Info (Count) # Cites Year
 
HITACHI, LTD. (1)
* 8,164,297 Power converter and motor driving system 0 2009
* Cited By Examiner