Fault-tolerant vehicle stability control
First Claim
1. A method of providing fault tolerance for a VDC system that controls a plurality of actuators to maintain the stability of a motor vehicle during a challenging driving condition, the method comprising:
- diagnosing at least one fault in at least one of the actuators;
selecting a fault compensation mode based on the detected at least one fault and the driving condition; and
compensating for the at least one fault by controlling remaining operable actuators according to the fault compensation mode.
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Abstract
A system and method for providing a fault tolerant vehicle dynamics control (VDC) is described. The system includes a fault tolerance module that receives an indication of a fault in at least one of the actuators of the VDC and selects a fault compensation mode to maintain the stability of the motor vehicle in light of the received fault indication. The fault tolerance module proceeds by diagnosing at least one fault in at least one of the actuators, selecting a fault compensation mode based on the detected at least one fault and the driving condition, and compensating for the at least one fault by optimally controlling remaining operable actuators according to the fault compensation mode.
42 Citations
11 Claims
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1. A method of providing fault tolerance for a VDC system that controls a plurality of actuators to maintain the stability of a motor vehicle during a challenging driving condition, the method comprising:
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diagnosing at least one fault in at least one of the actuators; selecting a fault compensation mode based on the detected at least one fault and the driving condition; and compensating for the at least one fault by controlling remaining operable actuators according to the fault compensation mode. - View Dependent Claims (2, 4, 6, 7, 8, 9, 10, 11)
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3. A method of providing fault tolerance for a VDC system that controls a plurality of actuators to maintain the stability of a motor vehicle during a challenging driving condition, the method comprising:
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diagnosing at least one fault in at least one of the actuators; selecting a fault compensation mode based on the detected at least one fault and the driving condition, wherein a rules-based decision making process is employed for selecting the fault compensation mode; compensating for the at least one fault by controlling remaining operable actuators according to the fault compensation mode; and performing a static tree analysis for selecting the fault compensation mode.
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5. A method of providing fault tolerance for a VDC system that controls a plurality of actuators to maintain the stability of a motor vehicle during a challenging driving condition, the method comprising:
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diagnosing at least one fault in at least one of the actuators; selecting a fault compensation mode based on the detected at least one fault and the driving condition, wherein a rules-based decision making process is employed for selecting the fault compensation mode and diagnosing the at least one fault; compensating for the at least one fault by controlling remaining operable actuators according to the fault compensation mode; and generating a static fault tree to provide the rules-based decision making process.
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Specification