System for sensing vehicle global and relative attitudes using suspension height sensors
First Claim
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1. A control system for an automotive vehicle having a vehicle body comprising:
- a first angular rate sensor generating a first angular rate signal corresponding to a first angular motion of the vehicle body;
a suspension height sensor generating a suspension height signal corresponding to the suspension height of the vehicle;
a lateral acceleration sensor generating a lateral acceleration signal corresponding to a lateral acceleration of the vehicle body;
a longitudinal acceleration sensor generating a longitudinal acceleration signal corresponding to the longitudinal acceleration of the vehicle body; and
a controller coupled to said first angular rate sensor, said suspension height sensor, said lateral acceleration sensor, and said longitudinal acceleration sensor, said controller determining a roll characteristic from the first angular rate signal, the suspension height signal, and the lateral acceleration signal and a pitch characteristic from the first angular rate signal, the suspension height signal and the longitudinal acceleration signal.
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Abstract
A control system (18) for an automotive vehicle includes a lateral acceleration sensor (32), a yaw rate sensor (28), a longitudinal acceleration sensor (36), and suspension height sensors (50a-50d). The controller (26) determines a roll characteristic from the first angular rate signal, the suspension height signal, and the lateral acceleration signal and a pitch characteristic from the first angular rate signal, the suspension height signal and the longitudinal acceleration signal.
101 Citations
31 Claims
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1. A control system for an automotive vehicle having a vehicle body comprising:
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a first angular rate sensor generating a first angular rate signal corresponding to a first angular motion of the vehicle body;
a suspension height sensor generating a suspension height signal corresponding to the suspension height of the vehicle;
a lateral acceleration sensor generating a lateral acceleration signal corresponding to a lateral acceleration of the vehicle body;
a longitudinal acceleration sensor generating a longitudinal acceleration signal corresponding to the longitudinal acceleration of the vehicle body; and
a controller coupled to said first angular rate sensor, said suspension height sensor, said lateral acceleration sensor, and said longitudinal acceleration sensor, said controller determining a roll characteristic from the first angular rate signal, the suspension height signal, and the lateral acceleration signal and a pitch characteristic from the first angular rate signal, the suspension height signal and the longitudinal acceleration signal. - View Dependent Claims (2, 3, 4, 5)
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6. A control system for an automotive vehicle having a vehicle body comprising:
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a suspension height sensor generating a suspension height signal corresponding to the suspension height of the vehicle;
a lateral acceleration sensor generating a lateral acceleration signal corresponding to a lateral acceleration of the vehicle body; and
a controller coupled to said suspension height, and said lateral acceleration sensor, said controller determining a suspension force in response to said suspension height signal and a control command, said controller determining a roll angular acceleration from the suspension height signal and the lateral acceleration signal. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A control system for an automotive vehicle having a vehicle body comprising:
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a suspension height sensor generating a suspension height signal corresponding to the suspension height of the vehicle;
a longitudinal acceleration sensor generating a longitudinal acceleration signal corresponding to the longitudinal acceleration of the vehicle body; and
a controller coupled to said suspension height sensor, and said longitudinal acceleration sensor, said controller determining a suspension force in response to said suspension height signal and a control command, said controller determining a pitch angular acceleration from the suspension height signal and the longitudinal acceleration signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method of controlling a safety device for an automotive vehicle having a body comprising:
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determining a lateral acceleration of the vehicle body;
determining a longitudinal acceleration of the vehicle body;
generating a first angular rate signal corresponding to a first angular rate of the vehicle body;
generating a suspension height signal corresponding to the suspension height of the vehicle;
determining a roll characteristic from the first angular rate signal, the suspension height signal, and the lateral acceleration signal;
determining a pitch characteristic from the first angular rate signal, the suspension height signal and the longitudinal acceleration signal; and
activating a safety device in response to the pitch characteristic and the roll characteristic. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A control system for an automotive vehicle having a vehicle body comprising:
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a first angular rate sensor generating a first angular rate signal corresponding to a first angular motion of the vehicle body;
a suspension height sensor generating a suspension height signal corresponding to the suspension height of the vehicle;
a lateral acceleration sensor generating a lateral acceleration signal corresponding to a lateral acceleration of the vehicle body; and
a controller coupled to said first angular rate sensor, said suspension height sensor and said lateral acceleration sensor, said controller determining a roll characteristic from the first angular rate signal, the suspension height signal, and the lateral acceleration signal.
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31. A control system for an automotive vehicle having a vehicle body comprising:
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a first angular rate sensor generating a first angular rate signal corresponding to a first angular motion of the vehicle body;
a suspension height sensor generating a suspension height signal corresponding to the suspension height of the vehicle;
a longitudinal acceleration sensor generating a longitudinal acceleration signal corresponding to the longitudinal acceleration of the vehicle body; and
a controller coupled to said first angular rate sensor, said suspension height sensor and said longitudinal acceleration sensor, said controller determining a pitch characteristic from the first angular rate signal, the suspension height signal and the longitudinal acceleration signal.
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Specification