System and method for deteching roll rate sensor fault
First Claim
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1. A method for detecting a roll rate sensor fault comprising:
- generating a reference roll angle;
generating a roll rate sensor signal;
comparing said reference roll angle to said roll rate sensor signal; and
generating a roll rate sensor fault signal in response to comparing said reference roll angle to said roll rate sensor signal; and
compensating for a valid signal bias in said roll rate sensor signal.
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Abstract
A control system for an automotive vehicle having a vehicle body includes a sensor cluster having a housing oriented within the vehicle body. A roll rate sensor is positioned within the housing and generates a roll rate sensor signal corresponding to a roll angular motion of the sensor housing. A controller receives the roll rate sensor signal and generates a reference roll angle. The controller also compares the reference roll angle to the roll rate sensor signal and generates a roll rate sensor fault signal in response a fault determined in said roll rate sensor.
203 Citations
26 Claims
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1. A method for detecting a roll rate sensor fault comprising:
- generating a reference roll angle;
generating a roll rate sensor signal;
comparing said reference roll angle to said roll rate sensor signal; and
generating a roll rate sensor fault signal in response to comparing said reference roll angle to said roll rate sensor signal; and
compensating for a valid signal bias in said roll rate sensor signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- generating a reference roll angle;
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16. A method for detecting a roll rate sensor fault comprising:
- generating a reference roll angle in an inertial frame with available signals other than roll rate;
generating a roll rate sensor signal;
compensating said roll rate sensor signal for all valid signal biases;
comparing said reference roll angle to said roll rate sensor signal through a kinematics relation and a dynamic interaction related by a vehicle suspension; and
generating a roll rate sensor fault signal comparing said reference roll angle to said roll rate sensor signal. - View Dependent Claims (17, 18, 19)
- generating a reference roll angle in an inertial frame with available signals other than roll rate;
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20. A control system for an automotive vehicle having a vehicle body comprising:
- a sensor cluster having a housing oriented within the vehicle body;
a roll rate sensor positioned within the housing adapted to generate a roll rate sensor signal corresponding to an roll angular motion of the sensor housing; and
a controller adapted to receive said roll rate sensor signal, said controller further adapted to generate a reference roll angle, and compare said reference roll angle to said roll rate sensor signal, said controller further adapted to generate a roll rate sensor fault signal in response to a fault determined in said roll rate sensor, wherein said controller is further adapted to compensate said roll rate sensor signal for all valid signal biases. - View Dependent Claims (21, 22, 23)
- a sensor cluster having a housing oriented within the vehicle body;
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24. A method for detecting a vehicle-dynamic sensor fault comprising:
- generating a reference vehicle-dynamic sensor signal;
generating a vehicle-dynamic sensor signal; and
compensating for a valid signal bias in said vehicle-dynamic sensor signal by adjusting a mechanical long term sensor alignment angle with a minute adjustment at each sampling time during a vehicle operation. - View Dependent Claims (25, 26)
- generating a reference vehicle-dynamic sensor signal;
Specification