Attitude sensing system for an automotive vehicle
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United States of America Patent
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Oct 7, 2003
Grant Date -
Apr 3, 2003
app pub date -
Oct 1, 2001
filing date -
Oct 1, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A stability control system (18) for an automotive vehicle includes a plurality of sensors (28-39) sensing the dynamic conditions of the vehicle. The sensors may include a speed sensor (20), a lateral acceleration sensor (32), a roll rate sensor (34), a yaw rate sensor (20) and a longitudinal acceleration sensor (36). The controller (26) is coupled to the speed sensor (20), the lateral acceleration sensor (32), the roll rate sensor (34), the yaw rate sensor (28) and a longitudinal acceleration sensor (36). The controller (26) has an anti-integration drift filter and a steady state recovery filter. The controller determines a roll attitude angle, a pitch attitude angle and a yaw attitude angle in response to the roll angular rate signal, the yaw angular rate signal, the lateral acceleration signal, the longitudinal acceleration signal, the wheel speed signal, the anti-integration drift filter and the steady state recovery filter.
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