Running board assembly and method permitting overcurrent

Patent metadata

Field	Value
Publication number	US-11084427-B2
Application number	US-201816180354-A
Country	US
Kind code	B2
Filing date	Nov 5, 2018
Priority date	Nov 5, 2018
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

This disclosure relates to a running board assembly for a motor vehicle and a corresponding method. An example method includes supplying current to a motor to move a running board between a retracted position and a deployed position, monitoring a level of the current, and permitting the level of current to exceed a threshold (i.e., overcurrent is permitted) in response to a user input.

First claim

The invention claimed is:

1. A method, comprising:
supplying current to a motor to move a running board of a motor vehicle between a retracted position and a deployed position;
monitoring a level of the current; and
permitting the level of current to exceed a threshold in response to a user input;
issuing a prompt to a user when the level of current comes within a predetermined range of the threshold,
wherein the prompt asks the user to determine whether an area adjacent the running board is free of obstructions,
wherein the user is permitted to provide an input indicating whether the area is free of obstructions in response to the prompt, and
wherein the permitting step includes permitting the level of current to exceed the threshold by a predetermined amount in response to the user input indicating that the area is free of obstructions.

2. The method as recited in claim 1 , wherein the permitting step includes permitting the level of current to exceed the threshold for a predetermined number of cycles in response to the user input.

3. The method as recited in claim 1 , wherein the threshold includes a static current threshold and a moving current threshold.

4. The method as recited in claim 3 , wherein the static current threshold is greater than the moving current threshold.

5. The method as recited in claim 1 , wherein the threshold is different depending on whether the running board is being retracted or deployed.

6. The method as recited in claim 5 , wherein the threshold is lower when the running board is moving to the deployed position than when the running board is moving to the retracted position.

7. The method as recited in claim 1 , wherein the threshold is determined based on at least an ambient temperature.

8. The method as recited in claim 1 , further comprising:
tracking a trend of the level of current over time, and
issuing a prompt to a user when the trend approaches the threshold.

9. The method as recited in claim 8 , further comprising moving the running board to the retracted position when the trend approaches the predetermined range and when it is determined the motor vehicle is being cleaned.

10. A method, comprising:
supplying current to a motor to move a running board of a motor vehicle between a retracted position and a deployed position;
monitoring a level of the current;
permitting the level of current to exceed a threshold in response to a user input, wherein the threshold is determined based on at least an ambient temperature; and
moving the running board between the retracted and deployed positions a series of times when the ambient temperature is below a predetermined temperature and when the level of current is at least within a predetermined range of the threshold.

11. A running board assembly for a motor vehicle, comprising:
a controller;
a motor responsive to instructions from the controller;
a running board moveable between a retracted position and a deployed position by the motor, wherein the controller is configured to permit a level of current drawn by the motor to exceed a threshold in response to a user input indicating an area adjacent the running board is free of obstructions, and wherein the controller is configured to instruct the motor to move the running board between the retracted and deployed positions a series of times when an ambient temperature is below a predetermined temperature and when the level of current is at least within a predetermined range of the threshold.

12. The running board assembly as recited in claim 11 , wherein the controller is configured to permit the level of current to exceed the threshold by a predetermined amount in response to the user input.

13. The running board assembly as recited in claim 11 , wherein the controller is configured to permit the level of current to exceed the threshold for a predetermined number of cycles in response to the user input.

14. The running board assembly as recited in claim 11 , further comprising:
a human-machine interface electrically connected to the controller,
wherein the controller is configured to issue a prompt to a prompt to a user via the human-machine interface when the level of current comes within a predetermined range of the threshold,
wherein the prompt asks the user to determine whether an area adjacent the running board is free of obstructions, and
wherein the user is permitted to provide an input indicating whether the area is free of obstructions in response to the prompt.

15. The running board assembly as recited in claim 11 , wherein:
the threshold includes a static current threshold and a moving current threshold, and
the static current threshold is greater than the moving current threshold.

16. The running board assembly as recited in claim 11 , wherein the threshold varies based on at least one of (1) whether the running board is being retracted or deployed, and (2) an ambient temperature.

Assignees

• Ford Global Tech Llc

Inventors

• Salter Stuart C
• Bustamante Chris Thomas
• Halonen Aaron
• Glickman David Brian
• Dellock Paul Kenneth

Classifications

• B60R3/02 Primary

  Retractable steps {or ladders, e.g. movable under shock (B60R3/005 takes precedence)} · CPC title

• B60R3/002

  Running boards (for vehicle tops B60R3/005; at the sides of the vehicle for carrying loads B60R9/02) · CPC title

• H02P29/40

  Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load · CPC title

• B60R16/027

  between relatively movable parts of the vehicle, e.g. between steering wheel and column {(devices for measuring, signalling or controlling tyre pressure or temperature specially adapted for mounting on vehicles B60C23/00)} · CPC title

• B60R16/03

  for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} · CPC title