VEHICLE CONTROL SYSTEM AND METHOD
First Claim
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1. A vehicle control system, comprising:
- a controller configured to provide an output signal in response to an input signal, wherein the output signal is used to control a vehicle operating parameter; and
a simulation module in communication with the controller and configured to execute a vehicle dynamics model to simulate a vehicle response based on the input signal and the vehicle operating parameter;
wherein the controller is configured to provide the output signal based on the simulated vehicle response.
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Abstract
A vehicle control system includes a controller configured to provide an output signal in response to an input signal. The output signal is used to control a vehicle operating parameter. The vehicle control system also includes a simulation module in communication with the controller and configured to execute a vehicle dynamics model to simulate a vehicle response based on the input signal and the vehicle operating parameter. The controller is configured to provide the output signal based on the simulated vehicle response.
327 Citations
20 Claims
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1. A vehicle control system, comprising:
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a controller configured to provide an output signal in response to an input signal, wherein the output signal is used to control a vehicle operating parameter; and
a simulation module in communication with the controller and configured to execute a vehicle dynamics model to simulate a vehicle response based on the input signal and the vehicle operating parameter;
wherein the controller is configured to provide the output signal based on the simulated vehicle response.
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2. The vehicle control system of definition 1, wherein the system is configured for use with an autonomous vehicle.
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3. The vehicle control system of definition 1, wherein the controller is configured to execute a path planning algorithm and a vehicle control algorithm.
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4. The vehicle control system of definition 1, wherein the input signal provides an indication of upcoming terrain.
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5. The vehicle control system of definition 1, wherein the vehicle operating parameter is at least one of a vehicle speed, a vehicle trajectory, a vehicle ride quality, and a vehicle fuel economy.
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6. The vehicle control system of definition 1, wherein the simulation module is configured to iterate a plurality of values for the vehicle operating parameter to simulate a plurality of vehicle responses.
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7. The vehicle control system of definition 6, wherein the controller is configured to maximize the vehicle operating parameter based on the plurality of vehicle responses.
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8. An autonomous vehicle, comprising:
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an engine;
a transmission;
a steering system;
a braking system;
a controller in communication with the engine, the transmission, the steering system, and the braking system;
an input sensor configured to provide an input signal to the controller; and
a simulation module in communication with the controller and configured to execute a vehicle dynamics model to simulate a vehicle response based on the input signal.
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9. The autonomous vehicle of definition 8, wherein the simulation model is further configured to simulate the vehicle response based on a vehicle operating parameter.
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10. The autonomous vehicle of definition 9, wherein the controller is configured to provide an output signal to at least one of the engine, the transmission, the steering system, and the braking system to control the vehicle operating parameter based on the simulated vehicle response.
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11. The autonomous vehicle of definition 9, wherein the vehicle operating parameter is at least one of a vehicle speed, a vehicle trajectory, a vehicle ride quality, and a vehicle fuel economy.
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12. The autonomous vehicle of definition 9, wherein the simulation module is configured to iterate a plurality of values for the vehicle operating parameter to simulate a plurality of vehicle responses.
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13. The vehicle control system of definition 9, wherein the controller is configured to maximize the vehicle operating parameter based on the plurality of vehicle responses.
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14. The autonomous vehicle of definition 8, wherein the input signal provides an indication of upcoming terrain.
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15. The autonomous vehicle of definition 8, wherein the controller is configured to execute a path planning algorithm and a vehicle control algorithm.
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16. A method of controlling a vehicle, comprising:
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acquiring an input signal indicative of upcoming terrain from an input sensor;
determining a path based on the input signal using the vehicle controller;
simulating a vehicle response based on the path and a vehicle operating parameter using a simulation module in communication with the controller and configured to execute a vehicle dynamics model; and
providing an output signal to control the vehicle operating parameter based on the simulated vehicle response using the vehicle controller.
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17. The method of definition 16, wherein the vehicle operating parameter is at least one of a vehicle speed, a vehicle trajectory, a vehicle ride quality, and a vehicle fuel economy.
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18. The method of definition 16, wherein simulating the vehicle response comprises iterating a plurality of values for the vehicle operating parameter to simulate a plurality of vehicle responses.
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19. The method of definition 18, wherein the controller is configured to maximize the vehicle operating parameter based on the plurality of vehicle responses.
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20. The method of definition 16, wherein the vehicle is an autonomous vehicle.
Specification