Adaptive crash height adjustment using active suspensions
First Claim
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1. A vehicle crash safety system comprising:
- a pre-crash sensing system configured for gathering and/or receiving target vehicle ride-height data; and
at least one actuator operatively coupled to the sensing system and configured for adjusting a height of a portion of a host vehicle responsive to a command from the sensing system, the sensing system being configured for timing a transmission of the command to the at least one actuator responsive to at least a current ride-height of the vehicle.
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Abstract
A vehicle crash safety system includes a pre-crash sensing system configured for gathering and/or receiving target vehicle ride-height data, and at least one actuator operatively coupled to the sensing system and configured for adjusting a height of a portion of a host vehicle responsive to a command from the sensing system. A timing of the command is responsive to an estimated dynamic response time of the at least one actuator.
37 Citations
17 Claims
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1. A vehicle crash safety system comprising:
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a pre-crash sensing system configured for gathering and/or receiving target vehicle ride-height data; and at least one actuator operatively coupled to the sensing system and configured for adjusting a height of a portion of a host vehicle responsive to a command from the sensing system, the sensing system being configured for timing a transmission of the command to the at least one actuator responsive to at least a current ride-height of the vehicle. - View Dependent Claims (4, 5, 6, 7, 8, 10, 16, 17)
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2. A vehicle crash safety system comprising:
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a pre-crash sensing system configured for gathering and/or receiving target vehicle ride-height data; and at least one actuator operatively coupled to the sensing system and configured for adjusting a height of a portion of a host vehicle responsive to a command from the sensing system, the sensing system being configured for timing the command responsive to an estimated dynamic response time of the at least one actuator, wherein the pre-crash sensing system is configured for generating host vehicle dynamics data, a target vehicle threat assessment, and target vehicle bumper or doorsill location data, and wherein the system further comprises a Dynamic State Self-Tuning (DSST) controller in electronic communication with said pre-crash sensing system, said DSST controller generating a reference ride-height signal as a function of said host vehicle dynamics data, target vehicle threat assessment, and target vehicle bumper or doorsill location data; and
a Rule-Based Height Regulator (RBHR) controller in operative communication with said DSST controller and an adjustable suspension system. - View Dependent Claims (3, 9, 11)
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12. A vehicle crash safety system comprising:
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a pre-crash sensing system configured for gathering and/or receiving target vehicle ride-height data; and at least one actuator operatively coupled to the sensing system and configured for changing a height of a portion of the vehicle responsive to a command, wherein the command is generated responsive to a level of downforce to be applied to a road surface by at least one vehicle wheel. - View Dependent Claims (13, 14, 15)
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Specification