STRAIGHT ADVANCE DETERMINING DEVICE OF VEHICLE

Japanese Patent JP3931680

B2

PROBLEM TO BE SOLVED: To accurately determine that a vehicle is in a straightly advancing condition, only from wheel speed data under any travelling condition.
SOLUTION: A wheel speed ratio operating means 21 and a distance operating means 31 and a distance ratio operating means 32 operate right and left wheel speed ratios, an actual traveling distance, a straight line distance and the distance ratio of both distances respectively for every predetermined check point (CP) based on right and left wheel speed values operated by a wheel speed operating means 13 from the detected values of right and left wheel speed sensors 11, 12. A wheel speed ratio fluctuation range evaluating means 24 extracts CP's at those points of time when the fluctuation range of the wheel speed ratio is comparatively small as an effective CP, and a determining means 43 determines that the effective CP whereby the distance ratio becomes minimum is the one at which the vehicle is in the straightly advancing condition among other effective CP's.

JPH07323709	TIRE INFLATION PRESSURE DETECTION DEVICE
JPS59191633	[Title of the device] An air pressure detecting device of a spare tire

Motonori Tominaga
Yukio Mori
Taguchi Health

JP2002040166A

June 20, 2007

February 18, 2002

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Japan Auto Parts Research Institute, Inc.
Advics Co., Ltd.

G01L17/00; B60C23/02; G01P3/56; B60C23/06; B60T8/172; (IPC1-7): B60C23/06; //G01L17/00

JP11180330A
JP7306216A
JP1304312A
JP8282222A

DE19832483A1
DE10058140A1
DE4342332A1
DE4230481A1

Yoji Ito
Takahiro Miura
Fumihiro Mizuno

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