IP Library Granted Patent US 9,694,684
Granted Patent B2
US 9,694,684 · App. 14/559,541 · Granted Jul 4, 2017

Priority based power management system and method for an electric vehicle

Inventor: Tomoyuki Enomoto (Torrance, CA)
Assignee: HONDA MOTOR CO., LTD.
B60L1/006B60L11/1861B60W10/06B60W10/08B60W10/26B60W20/10B60W30/18054B60W2050/009B60W2510/244Y02T10/6269Y02T10/6286
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Quick Facts
Patent No.
US 9,694,684
App. No.
14/559,541
Granted
Jul 4, 2017
Kind
B2
Abstract

A method to provide priority based power management of off-board devices being power by a vehicle comprising: determining an operating mode of the vehicle, the operating mode being an electric operating mode or a fossil fuel operating mode; determining a current state of charge (SOC) of a battery pack of the vehicle; supplying power to the off-board devices when the current SOC of the battery pack is above a minimum threshold value when the vehicle is operating in the fossil fuel operating mode; prioritizing the off-board devices when the vehicle is operating in the electric operating mode; and powering the off-board devices based on a prioritization level of the off-board devices and the current SOC of the battery pack when the vehicle is operating in the electric operating mode.

Claims (56)

1. A method implemented by a control module coupled to an electric motor and an internal combustion engine of a vehicle to provide priority based power management of off-board devices being power by the vehicle, comprising:

determining, via the control module, an operating mode of the vehicle, the operating mode being an electric operating mode or a fossil fuel operating mode;

determining, via the control module, a current state of charge (SOC) of a battery pack of the vehicle;

supplying power at a maximum load of each of the off board devices when the current SOC of the battery pack is above a predetermined threshold value when the vehicle is operating in the fossil fuel operating mode;

applying, via the control module, at least one priority to each of the off-board devices when the vehicle is operating in the electric operating mode;

when the current SOC of the battery pack is above the predetermined threshold value and the vehicle is operating in the electric operating mode, powering the off-board devices based on the priority of the off-board devices; and

when the current SOC of the battery pack falls below the predetermined threshold value and the vehicle is operating in the electric operating mode, removing power from individual off-board devices based on the priority of the off-board devices until the current SOC of the battery pack rises above the predetermined threshold value.

2. The method of claim 1 , comprising preventing powering of the off-board devices when the current SOC is below the predetermined threshold value and the vehicle is operating in the electric operating mode.

3. The method of claim 1 , comprising:

updating the priority for each of the off-board devices when the vehicle is operating in the fossil fuel operating mode; and

powering the off board devices based on the priority of the off-board devices and current SOC of the battery pack when the vehicle is operating in the fossil fuel operating mode.

4. The method of claim 3 , comprising powering individual off-board devices as the current SOC rises above predetermine threshold levels when the vehicle is operating in the fossil fuel operating mode.

5. The method of claim 1 , further comprising:

determining whether an off-board device is essential; and

when the off-board device is essential, assigning a higher priority to off-board device relative to a non-essential off-board device.

6. A system to provide priority based power management of off-board devices being powered by a vehicle comprising:

an electric motor;

a battery pack coupled to the electric motor;

an internal combustion engine (ICE) coupled to the battery pack;

a control module coupled to the electric motor and the ICE, the control module comprising:

at least one processor; and

a memory coupled to the processor, the memory storing program instructions that when executed by the processor, causes the processor to:

determine an operating mode of the vehicle, the operating mode being an electric operating mode or a fossil fuel operating mode;

determine a current state of charge (SOC) of the battery pack;

supply power at a maximum load of each of the off-board devices when the current SOC of the battery pack is above a predetermined threshold value when the vehicle is operating in the fossil fuel operating mode;

apply at least one priority to each of the off-board devices when the vehicle is operating in the electric operating mode;

when the current SOC of the battery pack is above the predetermined threshold value and the vehicle is operating in the electric operating mode, power the off-board devices based on the priority of the off-board devices; and

when the current SOC of the battery pack falls below the predetermined threshold value and the vehicle is operating in the electric operating mode, remove power from individual off-board devices based on the priority of the off-board devices until the current SOC of the battery pack rises above the predetermined threshold value.

7. The method of claim 1 , wherein the at least one priority of the off-board devices is inputted with a graphical user interface (GUI).

8. A system to provide priority based power management of off-board devices being powered by a vehicle comprising:

an electric motor;

a battery pack coupled to the electric motor;

an internal combustion engine (ICE) coupled to the battery pack;

a control module coupled to the electric motor and the ICE, the control module comprising:

at least one processor; and

a memory coupled to the processor, the memory storing program instructions that when executed by the processor, causes the processor to:

determine an operating mode of the vehicle, the operating mode being an electric operating mode or a fossil fuel operating mode;

determine a current state of charge (SOC) of the battery pack;

supply power at a maximum load of each of the off-board devices when the current SOC of the battery pack is above a predetermined threshold value when the vehicle is operating in the fossil fuel operating mode;

apply at least one priority to each of the off-board devices;

when the current SOC of the battery pack is above the predetermined threshold value and the vehicle is operating in the electric operating mode, power the off-board devices based on the priority of the off-board devices; and

when the current SOC of the battery pack falls below the predetermined threshold value and the vehicle is operating in the electric operating mode, remove power from individual off-board devices based on the priority of the off-board devices until the current SOC of the battery pack rises above the predetermined threshold value.

9. The system of claim 8 , wherein the memory storing program instructions that when executed by the processor, causes the processor to:

update the priority for each of the off-board devices when the vehicle is operating in the electric operating mode; and

power the off-board devices based on the priority of the off-board devices and the current SOC of the battery pack when the vehicle is operating in the electric operating mode.

10. The system of claim 9 , wherein the memory storing program instructions that when executed by the processor, causes the processor to prevent powering of the off-board devices when the current SOC is below the predetermined threshold value and the vehicle is in the electric operating mode.

11. The system of claim 9 , wherein the memory storing program instructions that when executed by the processor, causes the processor to: power individual off-board devices as the current SOC rises above predetermine threshold levels when the vehicle is operating in the fossil fuel operating mode.

12. The system of claim 9 , wherein the memory storing program instructions that when executed by the processor, causes the processor to:

update the priority for each of the off-board devices when the vehicle is operating in the fossil fuel operating mode; and

power the off-board devices based on the priority of the off-board devices and the current SOC of the battery pack when the vehicle is operating in the fossil fuel operating mode.

13. The system of claim 6 , wherein the memory storing program instructions that when executed by the processor, causes the processor to prevent powering of the off-board devices when the current SOC is below the predetermined threshold value and the vehicle is operating in the electric operating mode.

14. The system of claim 6 , wherein the memory storing program instructions that when executed by the processor, causes the processor to:

update the priority for each of the off-board devices when the vehicle is operating in the fossil fuel operating mode; and

power the off-board devices based on the priority of the off-board devices and current SOC of the battery pack when the vehicle is operating in the fossil fuel operating mode.

15. The system of claim 9 , wherein the at least one priority of the off-board devices is inputted with a graphical user interface (GUI).

16. The system of claim 14 , wherein the memory storing program instructions that when executed by the processor, causes the processor to power individual off-board devices based on the priority of the off-board devices as the current SOC rises above predetermine threshold levels when the vehicle is operating in the fossil fuel operating mode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2014
From: ENOMOTO, TOMOYUKI
To: HONDA MOTOR CO., LTD.
Reel/Frame 034362/0856 →
Continuity (1)
Related Publication 20160159220A1 · Jun 9, 2016