Sustained neutral operation of vehicles

Patent metadata

Field	Value
Publication number	US-11884286-B2
Application number	US-202217650028-A
Country	US
Kind code	B2
Filing date	Feb 4, 2022
Priority date	Oct 30, 2020
Publication date	Jan 30, 2024
Grant date	Jan 30, 2024

Abstract

A computer-implemented method includes determining a vehicle configuration indicative of a towing mode setting for the vehicle, which can include a neutral transmission gear setting, a battery conservation mode, or another towing mode setting. The method can include determining at least one vehicle operation characteristic that changes with time while the vehicle is in the towing mode setting, and performing, via a vehicle control module and based at least in part on the towing mode setting and the vehicle operation characteristic, one or more vehicle actions that include generating an alert signal indicative that vehicle damage may occur.

First claim

That which is claimed is:

1. A computer-implemented method, comprising:
determining a vehicle configuration indicative of a towing mode setting for a vehicle;
determining a vehicle operational characteristic that changes with time while the vehicle is in the towing mode setting; and
determining, based on the towing mode setting and the vehicle operational characteristic, that vehicle damage may occur; and
storing, based on the determination that vehicle damage may occur, data associated with the vehicle.

2. The computer-implemented method according to claim 1 , further comprising:
performing, via a vehicle control module and based on the towing mode setting and the vehicle operational characteristic, a vehicle action comprising generating an alert signal indicative that vehicle damage may occur.

3. The computer-implemented method according to claim 2 , wherein the vehicle action comprises:
determining, based on a vehicle speed, that the vehicle is being towed at a speed that exceeds a predetermined value for sustainable towing speed; and
generating the alert signal based on determining that the vehicle is being towed at the vehicle speed that exceeds the predetermined value for sustainable towing speed associated with the vehicle.

4. The computer-implemented method according to claim 2 , wherein the vehicle action comprises:
determining a charge status of a service battery and/or a traction battery;
starting an engine of the vehicle based on a vehicle speed and/or the charge status of the service battery and/or the traction battery;
charging, via the engine, the service battery and/or the traction battery to a predetermined charge value; and
turning off the engine responsive to determining that a charge of the service battery and/or the traction battery has reached the predetermined charge value.

5. The computer-implemented method according to claim 2 , wherein the vehicle action comprises:
determining a vehicle location;
determining a jurisdictional rule based on the vehicle location; and
generating, based on the jurisdictional rule, a control command for outputting the alert signal indicative that vehicle damage may occur.

6. The computer-implemented method according to claim 5 , wherein the vehicle action comprises:
executing, via control modules of the vehicle, the control command, wherein the control command causes the control module to sound an audible horn of the vehicle.

7. The computer-implemented method according to claim 2 , wherein the vehicle action comprises:
executing, via control modules of the vehicle, a control command, wherein the control command causes the control module to flash one or more front lamps of the vehicle.

8. The computer-implemented method according to claim 2 , wherein the vehicle action comprises:
broadcasting a command to a towing vehicle that is towing the vehicle, wherein the command is configured to cause the towing vehicle to flash a hazard signal.

9. The computer-implemented method according to claim 8 , wherein the command is configured to cause a rear camera system onboard the towing vehicle to display a view of the towed vehicle.

10. The computer-implemented method according to claim 2 , wherein the alert signal includes an indication that a wheel of the vehicle is locked.

11. The computer-implemented method according to claim 2 , wherein the alert signal includes an indication that a powertrain control module (PCM) sent a signal to place a transmission of the vehicle in a park state.

12. The computer-implemented method according to claim 1 , wherein the towing mode setting comprises a neutral transmission gear setting.

13. The computer-implemented method according to claim 1 , wherein determining the vehicle operational characteristic comprises determining a vehicle speed, a towed distance, a transmission lubricant level, a transmission lubricant quality, a transmission temperature, and/or a transmission speed.

14. The computer-implemented method according to claim 1 , wherein determining the vehicle operational characteristic comprises:
determining a voltage production of a traction motor;
comparing the voltage production to a predetermined limit for voltage; and
generating an over-voltage indication responsive to determining that the voltage production exceeds the predetermined limit for voltage.

15. The computer-implemented method according to claim 1 , wherein determining the vehicle operational characteristic comprises: determining a transmission output speed for the vehicle.

16. The computer-implemented method according to claim 1 , wherein determining the vehicle operational characteristic comprises:
determining a wheel speed for a front wheel of the vehicle and a rear wheel of the vehicle.

17. The computer-implemented method according to claim 1 , wherein determining the vehicle operational characteristic comprises:
determining a charge status of a service battery or a traction battery.

18. The computer-implemented method according to claim 1 , wherein the data includes a towed distance.

19. A system, comprising:
a processor; and
a memory for storing executable instructions, the processor configured to execute the executable instructions to:
determine a vehicle configuration indicative of a towing mode setting for a vehicle;
determine a vehicle operation characteristic that changes with time while the vehicle is in the towing mode setting;
determine, based on the towing mode setting and the vehicle operational characteristic, that vehicle damage may occur; and
store, based on the determination that vehicle damage may occur, data associated with the vehicle.

20. A non-transitory computer-readable storage medium comprising instructions that, when executed by a processor, cause the processor to perform acts comprising:
determining a vehicle configuration indicative of a towing mode setting for a vehicle;
determining a vehicle operation characteristic that changes with time while the vehicle is in the towing mode setting; and
determining, based on the towing mode setting and the vehicle operational characteristic, that vehicle damage may occur; and
storing, based on the determination that vehicle damage may occur, data associated with the vehicle.

Assignees

• Ford Global Tech Llc

Inventors

• Ansbacher Todd
• Stratton Adam
• Holub Patrick
• Van Wiemeersch John
• Fitzgerald Ronald

Classifications

• B60W50/045 Primary

  Monitoring control system parameters · CPC title

• B60Q1/46 Primary

  for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights {or hazard lights} · CPC title

• B60W10/26

  for electrical energy, e.g. batteries or capacitors · CPC title

• B60W40/105

  Speed · CPC title

• B60W50/14

  Means for informing the driver, warning the driver or prompting a driver intervention · CPC title