Safety critical systems control in autonomous vehicles
First Claim
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1. A method, comprising:
- energizing one or more vehicle electrical systems with a first power source of two or more power sources, each power source capable of independently energizing one or more of the vehicle electrical, wherein the one or more vehicle electrical systems comprises at least one of a vehicle brake system, a vehicle steering system, or a vehicle powertrain system;
determining a voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems;
determining a voltage of a second power source of the two or more power sources while the first power source is energizing one or more of the vehicle electrical systems; and
determining that a combined voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems and voltage of the second power source while the first power source is energizing one or more of the vehicle electrical systems is within a first predetermined tolerance of a first predetermined voltage.
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Abstract
The health and integrity of safety critical vehicle systems of a vehicle can be determined by energizing the safety critical vehicle systems with a first power source, determining a first voltage of the first power source, and then determining a second voltage of a second power source. Comparing the first and second voltages can determine the health and integrity of safety critical vehicle systems.
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Citations
18 Claims
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1. A method, comprising:
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energizing one or more vehicle electrical systems with a first power source of two or more power sources, each power source capable of independently energizing one or more of the vehicle electrical, wherein the one or more vehicle electrical systems comprises at least one of a vehicle brake system, a vehicle steering system, or a vehicle powertrain system; determining a voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems; determining a voltage of a second power source of the two or more power sources while the first power source is energizing one or more of the vehicle electrical systems; and determining that a combined voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems and voltage of the second power source while the first power source is energizing one or more of the vehicle electrical systems is within a first predetermined tolerance of a first predetermined voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus, comprising:
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a processor; and a memory, the memory including instructions to be executed by the processor to; energize one or more vehicle electrical systems with a first power source of two or more power sources, each power source capable of independently energizing the one or more vehicle electrical system; determine a voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems; determine a voltage of a second power source of the two or more power sources while the first power source is energizing one or more of the vehicle electrical systems; and determine that a difference between the voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems and the voltage of the second power source while the first power source is energizing one or more of the vehicle electrical systems are within a first predetermined tolerance of a first predetermined voltage. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A vehicle, comprising:
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a computing device including a processor; and a memory, the memory including instructions to be executed by the processor to; energize one or more vehicle electrical systems with a first power source of two or more power sources, each power source capable of independently energizing the one or more vehicle electrical system; determine a voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems; determine a voltage of a second power source of the two or more power sources while the first power source is energizing one or more of the vehicle electrical systems; and determine that a combined voltage of the first power source while the first power source is energizing one or more of the vehicle electrical systems and voltage of the second power source while the first power source is energizing one or more of the vehicle electrical systems is within a first predetermined tolerance of a first predetermined voltage. - View Dependent Claims (16, 17, 18)
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Specification