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US 6,684,140 B2Granted
System for sensing vehicle global and relative attitudes using suspension height sensors
AssigneeFord Global Technologies, LLC
InventorJianbo Lu
Life of this patent
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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.
Claims31
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.
3 more elements
A control system for an automotive vehicle having a vehicle body comprising:
- 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.
1 more element
A control system for an automotive vehicle having a vehicle body comprising:
- 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.
1 more element
A method of controlling a safety device for an automotive vehicle having a body comprising:
- 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.
5 more elements
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;
- 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.
2 more elements
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 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.
2 more elements
Dependencies are inferred from the claim text.