Method and system for hybrid vehicle power generation

Patent metadata

Field	Value
Publication number	US-12110002-B2
Application number	US-202217573038-A
Country	US
Kind code	B2
Filing date	Jan 11, 2022
Priority date	Jan 11, 2022
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

Responsive to a user request, a controller operates an engine of a vehicle while parked to charge a traction battery to a target state of charge that exceeds a maximum state of charge limit, used during drive of the vehicle by an electric machine, in advance of a predefined period of time.

First claim

What is claimed is:

1. A vehicle comprising
an engine;
an electric machine;
a traction battery configured to provide power to the electric machine; and
a controller programmed to, while the vehicle is in PARK and before a predefined period of time during which engine starts will be prohibited, operate the engine to charge the traction battery to a target state of charge that exceeds a maximum state of charge limit permitted during drive of the vehicle by the electric machine.

2. The vehicle of claim 1 further comprising a power outlet configured to convey power from the traction battery during the predefined period of time.

3. The vehicle of claim 1 further comprising a power outlet, wherein the controller is further programmed to limit power flow from the traction battery to loads other than the power outlet during the predefined period of time.

4. The vehicle of claim 1 , wherein the controller is further programmed to inhibit starts of the engine during the predefined period of time.

5. The vehicle of claim 1 , wherein the controller is further programmed to, responsive to the state of charge falling below a floor value, generate a notification.

6. The vehicle of claim 1 further comprising a power outlet configured to convey power from the traction battery during the predefined period of time, wherein the controller is further programmed to, responsive to the state of charge falling below a floor value, prevent power flow to the power outlet.

7. The vehicle of claim 6 , wherein the floor value is based on ambient temperature.

8. The vehicle of claim 1 , wherein the target state of charge is based on weather in a vicinity of the vehicle.

9. A method comprising:
responsive to a vehicle being in PARK and before a predefined period of time during which engine starts will be prohibited, operating the engine to charge a traction battery of the vehicle to a target state of charge that exceeds a maximum state of charge limit permitted during drive of the vehicle by an electric machine.

10. The method of claim 9 further comprising limiting power from the traction battery to loads other than a power outlet of the vehicle during the predefined period of time.

11. The method of claim 9 further comprising inhibiting starts of the engine during the predefined period of time.

12. The method of claim 9 further comprising generating a notification indicating the state of charge has fallen below a floor value.

13. The method of claim 9 further comprising preventing power flow from the traction battery to a power outlet of the vehicle after the state of charge has fallen below a floor value.

14. The method of claim 13 , wherein the floor value is based on ambient temperature.

15. The method of claim 9 , wherein the target state of charge is based on weather in a vicinity of the vehicle.

16. A power system for a vehicle comprising:
a traction battery;
a power outlet; and
a controller programmed to, while the vehicle is parked and before a predefined period of time during which engine starts will be prohibited, charge the traction battery to a target state of charge that exceeds a maximum state of charge permitted during drive of the vehicle and to permit power flow from the traction battery to the power outlet without starting the engine of the vehicle.

17. The power system of claim 16 , wherein the controller is further programmed to limit power flow from the traction battery to loads other than the power outlet.

18. The power system of claim 16 , wherein the controller is further programmed to prevent the power flow based on a state of charge of the traction battery.

19. The power system of claim 16 , wherein the target state of charge is based on weather in a vicinity of the vehicle.

20. The power system of claim 16 , further comprising a wireless transceiver programmed to communicate with a mobile device,
the controller is further programmed to responsive to the state of charge of the traction battery reaches a discharge threshold while the vehicle is parked, output a message to the mobile device.

Assignees

• Ford Global Tech Llc

Inventors

• Powell Stephen Thomas
• Johnson Samuel
• Carlson Garrett
• Lechlitner Craig

Classifications

• B60W2756/10

  Involving external transmission of data to or from the vehicle · CPC title

• B60W2510/1005

  Transmission ratio engaged · CPC title

• B60W2555/20

  Ambient conditions, e.g. wind or rain · CPC title

• B60W2510/244

  Charge state · CPC title

• B60W2710/244

  Charge state · CPC title