Measuring and testing – Tire – tread or roadway
Reexamination Certificate
2005-05-31
2005-05-31
Cygan, Michael (Department: 2855)
Measuring and testing
Tire, tread or roadway
C701S080000
Reexamination Certificate
active
06898966
ABSTRACT:
A SAT estimating portion supplies a grip degree estimating portion with the estimated SAT value. A summing device sums a front wheel slip angle on which high pass filter processing has been performed and a front wheel slip angle on which low pass filter processing has been performed so as to obtain an integrated slip angle. A grip degree estimating portion estimates a grip degree of a tire, by calculating a SAT reference value which is based on the integrated slip angle, and calculating a ratio between the SAT reference value and the estimated SAT value. A road surface μ value estimating portion estimates a road surface μ value when the grip degree becomes equal to or lower than a reference value.
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Inagaki Shoji
Ono Eiichi
Allen Andre
Cygan Michael
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