Road surface friction coefficient estimation apparatus for vehicle and road surface friction coefficient estimation method for vehicle

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United States of America Patent

PATENT NO 11247686
APP PUB NO 20190001988A1
SERIAL NO

15951014

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Abstract

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A road surface friction coefficient estimation apparatus for a vehicle includes: a first estimator; a second estimator; and a third estimator. The first estimator estimates a first road surface friction coefficient on a basis of a vehicle information acquired from the vehicle. The second estimator estimates a second road surface friction coefficient on a basis of an external information acquired from an outside of the vehicle. The third estimator estimates a road surface friction coefficient from the first road surface friction coefficient and the second road surface friction coefficient on a basis of a first reliability degree and a second reliability degree, the first reliability degree indicating a reliability of the first road surface friction coefficient, the second reliability degree indicating a reliability of the second road surface friction coefficient.

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Patent Owner(s)

Patent OwnerAddress
SUBARU CORPORATIONTOKYO 150-8554

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ienaga, Hiroshi Tokyo, JP 19 58
Kobayashi, Takahiro Tokyo, JP 227 1973
Ogasahara, Junya Tokyo, JP 3 8
Sakaguchi, Shinichi Tokyo, JP 22 235
Yoneda, Takeshi Tokyo, JP 56 618

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