Power and thermal management systems and methods for autonomous vehicles

Patent metadata

Field	Value
Publication number	US-11430331-B2
Application number	US-201715722346-A
Country	US
Kind code	B2
Filing date	Oct 2, 2017
Priority date	Sep 8, 2017
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

Systems and methods for power and thermal management of autonomous vehicles are provided. In one example embodiment, a computing system includes processor(s) and one or more tangible, non-transitory, computer readable media that collectively store instructions that when executed by the processor(s) cause the computing system to perform operations. The operations include obtaining data associated with an autonomous vehicle. The operations include identifying one or more vehicle parameters associated with the autonomous vehicle based at least in part on the data associated with the autonomous vehicle. The operations include determining a modification to one or more operating characteristics of one or more systems onboard the autonomous vehicle based at least in part on the one or more vehicle parameters. The operations include controlling a heat generation of at least a portion of the autonomous vehicle via implementation of the modification of the operating characteristic(s) of the system(s) onboard the autonomous vehicle.

First claim

What is claimed is:

1. A computer-implemented method of autonomous vehicle thermal management, comprising:
identifying one or more vehicle parameters associated with an autonomous vehicle;
determining a modification to one or more operating characteristics of a sensor system of the autonomous vehicle based at least in part on a sensor capability requirement corresponding to the one or more vehicle parameters, wherein the sensor capability requirement is configured based at least in part on an operating condition of the autonomous vehicle; and
controlling a heat generation of the sensor system of the autonomous vehicle via implementation of the modification.

2. The computer-implemented method of claim 1 , further comprising:
obtaining data indicative of a motion plan of the autonomous vehicle, wherein the motion plan is indicative of a future vehicle action to be performed by the autonomous vehicle, and
wherein identifying the one or more vehicle parameters associated with the autonomous vehicle comprises identifying the one or more vehicle parameters based at least in part on the future vehicle action to be performed by the autonomous vehicle.

3. The computer-implemented method of claim 1 , further comprising:
obtaining map data indicative of a future geographic area in which the autonomous vehicle is to be located at a future point in time, and
wherein identifying the one or more vehicle parameters associated with the autonomous vehicle comprises identifying the one or more vehicle parameters based at least in part on the future geographic area in which the autonomous vehicle is to be located.

4. The computer-implemented method of claim 3 , wherein the one or more vehicle parameters are indicative of a crowd density associated with the future geographic area.

5. The computer-implemented method of claim 3 , wherein the one or more vehicle parameters are indicative of a traffic pattern associated with the future geographic area.

6. The computer-implemented method of claim 1 , wherein the modification to the one or more operating characteristics of the sensor system comprises a decrease in a frame rate of a sensor of the sensor system.

7. The computer-implemented method of claim 1 , wherein the modification to the one or more operating characteristics of the sensor system comprises sub-sampling sensor data obtained via the sensor system.

8. The computer-implemented method of claim 1 , further comprising:
determining a modification to one or more operating characteristics of a motion planning system of the autonomous vehicle based at least in part on the one or more vehicle parameters.

9. The computer-implemented method of claim 8 , wherein the modification to the one or more operating characteristics of the motion planning system comprises a restriction on a speed of the autonomous vehicle.

10. The computer-implemented method of claim 8 , wherein the modification comprises, during a change in the sensor capability requirement, operating within a buffer speed or a buffer acceleration.

11. The computer-implemented method of claim 1 , wherein the sensor capability requirement comprises operating the sensor system to sense at least a forward distance ahead of the autonomous vehicle, wherein the forward distance is determined based at least in part on the operating condition.

12. The computer-implemented method of claim 1 , wherein the sensor capability requirement is decreased based at least in part on a decrease in speed of the autonomous vehicle.

13. A computing system for autonomous vehicle thermal management, comprising:
one or more processors; and
one or more tangible, non-transitory, computer readable media that collectively store instructions that when executed by the one or more processors cause the computing system to perform operations, the operations comprising:
obtaining data associated with an autonomous vehicle, wherein the data is indicative of at least one of a future action to be performed by the autonomous vehicle, a future geographic area in which the autonomous vehicle is to be located, or a weather condition to be experienced by the autonomous vehicle;
identifying one or more vehicle parameters associated with the autonomous vehicle based at least in part on the data associated with the autonomous vehicle;
determining a modification to one or more operating characteristics of one or more systems onboard the autonomous vehicle based at least in part on a sensor capability requirement corresponding to the one or more vehicle parameters, wherein the sensor capability requirement is configured based at least in part on an operating condition of the autonomous vehicle, and wherein the one or more systems onboard the autonomous vehicle comprise at least one of a sensor system of the autonomous vehicle or a motion planning system of the autonomous vehicle; and
controlling a heat generation of at least a portion of the autonomous vehicle via implementation of the modification.

14. The computing system of claim 13 , wherein the modification comprises adjusting a window of interest of a sensor of the sensor system.

15. The computing system of claim 13 , wherein the modification comprises adjusting cost data utilized by the motion planning system when planning a motion of the autonomous vehicle.

16. The computing system of claim 13 , wherein the one or more vehicle parameters are indicative of at least one of: a speed of the autonomous vehicle, a condition of a travel way, a type of the travel way, a geometry of a travel way, other parameters indicated by map data, a crowd density, a traffic pattern, the future action, a temperature of a vehicle computing device, or the weather condition.

17. The computing system of claim 13 , wherein the modification is determined at a first point in time, and wherein controlling the heat generation comprises:
providing at a second point in time data indicative of the modification to the one or more systems.

18. An autonomous vehicle comprising:
one or more processors; and
one or more tangible, non-transitory, computer readable media that store instructions that when executed by the one or more processors cause the autonomous vehicle to perform operations, the operations comprising:
obtaining data associated with the autonomous vehicle;
identifying one or more vehicle parameters associated with the autonomous vehicle based at least in part on the data associated with the autonomous vehicle;
determining a modification to one or more operating characteristics of one or more systems onboard the autonomous vehicle based at least in part on a sensor capability requirement corresponding to the one or more vehicle parameters, wherein the sensor capability requirement is configured based at least in part on an operating condition of the autonomous vehicle, and wherein the one or more systems comprise at least one of a sensor system of the autonomous vehicle or a motion planning system of the autonomous vehicle; and
controlling a heat generation of at least a portion of the autonomous vehicle via implementation of the modification.

19. The autonomous vehicle of claim 18 , wherein the data associated with the autonomous vehicle comprises data indicative of a motion plan of the autonomous vehicle, map data indicative of a future geographic area in which the autonomous vehicle is to be located, or weather data indicative of a weather condition to be experienced by the autonomous vehicle.

20. The autonomous vehicle of claim 18 , wherein the sensor system comprises a sen

Assignees

• Uatc Llc

Inventors

• Rice David Patrick
• Boehmke Scott Klaus

Classifications

• B60L2240/36

  Temperature of vehicle components or parts · CPC title

• B60H1/00878 Primary

  the components being temperature regulating devices · CPC title

• B60H1/00764

  the input being a vehicle driving condition, e.g. speed (B60H1/00828, B60H1/00864 take precedence) · CPC title

• B60H1/0073

  Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models · CPC title

• G08G1/096725 Primary

  where the received information generates an automatic action on the vehicle control · CPC title