Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Reexamination Certificate
2005-01-07
2008-11-18
Nguyen, Cuong H (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
C701S071000, C701S073000, C340S008100, C303S149000
Reexamination Certificate
active
07454279
ABSTRACT:
System for detecting stability/instability of behavior of a motor vehicle upon occurrence of tire slip or lock. State of the motor vehicle is determined on the basis of an alignment torque (Ta) applied from a road and a side slip angle (β). By taking advantage of such torque/slip-angle characteristic that although the alignment torque is proportional to a side slip angle when the latter is small, the alignment torque becomes smaller as the side slip angle increases, a normal value is determined from a straight line slope and the side slip angle in a region where the latter is small. Unstable behavior of the motor vehicle is determined when deviation of actual measured value from the normal value increases. Further, unstable state is determined when the slope of the alignment torque for the slip angle departs significantly from that of approximate straight line slope.
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Fujioka Hiroshi
Kurishige Masahiko
Maeda Takashi
Matsui Toshinori
Matsunaga Takanori
Mitsubishi Denki & Kabushiki Kaisha
Nguyen Cuong H
Sughrue & Mion, PLLC
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