Electric power steering system

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United States of America Patent

PATENT NO 8816630
APP PUB NO 20120205186A1
SERIAL NO

13364453

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electric power steering system calculates a motor resistance Rm using a resistance map, and calculates an estimated inducted voltage based on a motor current and a motor voltage. If the estimated induced voltage is determined as being equal to or smaller than a determination value that is set in accordance with the current level, the electric power steering system calculates a motor resistance (estimated motor resistance Rma) and updates the resistance map based on the estimated motor resistance Rma.

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Patent Owner(s)

  • JTEKT CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kariatsumari, Yuji Yamatotakada, JP 42 298
Niimi, Kozo Kariya, JP 3 10

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