System and method for torque split arbitration

Patent metadata

Field	Value
Publication number	US-11358585-B2
Application number	US-201916240640-A
Country	US
Kind code	B2
Filing date	Jan 4, 2019
Priority date	Jan 4, 2019
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A method for torque split arbitration in a vehicle includes identifying at least one route characteristic of a portion of a route being traversed by the vehicle. The method further includes determining a target torque split based on the at least one route characteristics. The method further includes generating a first output torque demand that corresponds to a product of a first portion of a target torque demand to be provided by a first propulsion unit and a ratio of a total propulsion system torque demand and the target torque demand. The method further includes generating a second output torque demand based on the first output torque demand.

First claim

What is claimed is:

1. A method for torque split arbitration in a vehicle, the method comprising:
identifying at least one route characteristic of a portion of a route being traversed by the vehicle;
determining a vehicle energy consumption profile for the vehicle based on at least:
historical data indicating energy consumption of the vehicle for at least a portion of a route previously traversed by the vehicle and having at least one route characteristic corresponding to the at least one route characteristic of the portion of the route being traversed by the vehicle; and
historical data associated with at least one other vehicle for at least a portion of a route previously traversed by at the least one other vehicle having at least one route characteristic corresponding to the at least one route characteristic of the route being traversed by the vehicle;

determining a target torque demand and a target torque split based on the at least one route characteristic and the vehicle energy consumption profile, wherein the target torque split indicates a first portion of the target torque demand to be provided by a first propulsion unit and a second portion of the target torque demand to be provided by a second propulsion unit;
receiving a total propulsion system torque demand from a vehicle propulsion controller of the vehicle;
generating a first output torque demand that corresponds to a product of the first portion of the target torque demand to be provided by the first propulsion unit and a ratio of the total propulsion system torque demand and the target torque demand;
generating a second output torque demand that corresponds to the difference of the total propulsion system torque demand and the first output torque demand; and
communicating the first output torque demand and the second output torque demand to a torque split controller of the vehicle.

2. The method of claim 1 , wherein the at least one route characteristic includes at least one of a traffic condition, a traffic signal, and a road grade.

3. The method of claim 1 , wherein the first propulsion unit includes one of an internal combustion engine and at least one electric motor, and the second propulsion unit includes the other of the internal combustion engine and the at least one electric motor.

4. The method of claim 1 , wherein the vehicle propulsion controller includes an adaptive cruise control mechanism.

5. The method of claim 1 , wherein the vehicle energy consumption profile is determined further based on at least one vehicle characteristic that contributes to vehicle energy consumption.

6. The method of claim 1 , wherein the route being traversed by the vehicle includes a route selected by a driver of the vehicle from a plurality of routes provided to the driver, and wherein the plurality of routes is provided to the driver with information indicating an energy consumption value for each route of the plurality of routes.

7. An apparatus for torque split arbitration in a vehicle comprising:
a memory; and
a processor, wherein the memory includes instructions executable by the processor to:
identify at least one route characteristic of a portion of a route being traversed by the vehicle;
determine a vehicle energy consumption profile for the vehicle based on at least:
historical data indicating energy consumption of the vehicle for at least a portion of a route previously traversed by the vehicle having at least one route characteristic corresponding to the at least one route characteristic of the portion of the route being traversed by the vehicle; and
historical data associated with at least one other vehicle for at least a portion of a route previously traversed by at the least one other vehicle having at least one route characteristic corresponding to the at least one route characteristic of the route being traversed by the vehicle;

determine a target torque demand and a target torque split based on the at least one route characteristic and the vehicle energy consumption profile, wherein the target torque split indicates a first portion of the target torque demand to be provided by a first propulsion unit and a second portion of the target torque demand to be provided by a second propulsion unit;
receive a total propulsion system torque demand from a vehicle propulsion controller of the vehicle;
generate a first output torque demand that corresponds to a product of the first portion of the target torque demand to be provided to by first propulsion unit and a ratio of the total propulsion system torque demand and the target torque demand;
generating a second output torque demand that corresponds to the difference of the total propulsion system torque demand and the first output torque demand; and
communicating the first output torque demand and the second output torque demand to a torque split controller of the vehicle.

8. The apparatus of claim 7 , wherein the at least one route characteristic includes at least one of a traffic condition, a traffic signal, and a road grade.

9. The apparatus of claim 7 , wherein the first propulsion unit includes one of an internal combustion engine and at least one electric motor, and the second propulsion unit includes the other of the internal combustion engine and the at least one electric motor.

10. The apparatus of claim 7 , wherein the vehicle includes an autonomous vehicle.

11. The apparatus of claim 7 , wherein the vehicle energy consumption profile is further determined based on at least one vehicle characteristic that contributes to vehicle energy consumption.

12. The apparatus of claim 7 , wherein the route being traversed by the vehicle includes a route selected by a driver of the vehicle from a plurality of routes provided to the driver, and wherein the plurality of routes is provided to the driver with information indicating an energy consumption value for each route of the plurality of routes.

13. A non-transitory computer-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:
identifying at least one route characteristic of a portion of a route being traversed by a vehicle;
determining a vehicle energy consumption profile for the vehicle based on at least:
historical data indicating energy consumption of the vehicle for at least a portion of a route previously traversed by the vehicle having at least one route characteristic corresponding to the at least one route characteristic of the portion of the route being traversed by the vehicle; and
historical data associated with at least one other vehicle for at least a portion of a route previously traversed by at the least one other vehicle having at least one route characteristic corresponding to the at least one route characteristic of the route being traversed by the vehicle;

determining a target torque demand and a target torque split based on the at least one route characteristic and the vehicle energy consumption profile, wherein the target torque split indicates a first portion of the target torque demand to be provided by an electric motor and a second portion of the target torque demand to be provided by an internal combustion engine;
receiving a total propulsion system torque demand from a vehicle propulsion controller of the vehicle;
generating a first output torque demand that corresponds to a product of the first portion of the target torque demand to be provided by the electric motor and a ratio of the total propulsion system torque demand and the target torque demand;
generating a second output torque demand that corresponds to the difference of the total propul

Assignees

• Delphi Tech Ip Ltd

Inventors

• Aggoune Karim
• Olin Peter M
• Marshall Peter A
• Tang Li
• Confer Keith A
• Kirwan John E

Classifications

• B60W2540/10

  Accelerator pedal position · CPC title

• B60W10/06 Primary

  including control of combustion engines · CPC title

• B60W10/18

  including control of braking systems · CPC title

• B60W10/28

  including control of fuel cells · CPC title

• B60W30/143

  Speed control (B60W30/16 takes precedence) · CPC title