Turning determination apparatus and turning determination...

Details Turning determination apparatus and turning determination... Turning determination apparatus and turning determination...

2007-01-09

2008-10-28

Raymond, Edward (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C701S072000

Reexamination Certificate

active

07444261

ABSTRACT:
An ECU executes a program that includes the steps of setting a vehicle speed to the minimum wheel speed among wheel speeds of four wheels of a vehicle; calculating a difference between the wheel speeds of right and left driven wheels; turning an abnormality flag on when a higher wheel speed is higher than a value obtained by multiplaying a lower wheel speed by α; and determining that the vehicle is turning, and turning a turning flag on, when the abnormality flag is off, a predetermined time has not elapsed after the turning flag is turned on, and the difference between the wheel speeds is equal to or larger than a map value obtained using a map where a vehicle speed is used as a parameter.

REFERENCES:
patent: 2004/0002795 (2004-01-01), Tanimoto et al.
patent: 2005/0012501 (2005-01-01), Isono et al.
patent: 2005/0240332 (2005-10-01), Mori et al.
patent: 2000-280882 (2000-10-01), None

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