Steering wheel mounted trailer brake controllers and systems

Patent metadata

Field	Value
Publication number	US-9346439-B2
Application number	US-201414248078-A
Country	US
Kind code	B2
Filing date	Apr 8, 2014
Priority date	Apr 8, 2014
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A trailer brake controller for a motor vehicle may include a control unit configured to be mounted to a spoke of a steering wheel of the vehicle, and a brake lever coupled to the control unit and extending along a longitudinal axis of the control unit. The brake lever may be configured to be actuated by a driver of the motor vehicle by being pulled in a forward motion toward the driver. The brake lever may be further configured to transmit a force applied to the lever by the driver to the control unit. The control unit may be configured to generate a manual trailer brake control signal based on the force applied to the lever.

First claim

What is claimed is:

1. A trailer brake controller for a motor vehicle, comprising:
a control unit configured to be mounted to a spoke of a steering wheel of the vehicle; and
a brake lever coupled to the control unit and extending adjacent to the control unit along a longitudinal axis of the control unit,
wherein the brake lever is elongated along the control unit and is configured to be actuated by a driver of the motor vehicle by being pulled in a forward motion toward the driver,
wherein the brake lever is configured to transmit a force applied to the lever by the driver to the control unit, and
wherein the control unit is configured to generate a manual trailer brake control signal based on the force applied to the lever.

2. The trailer brake controller of claim 1 , further comprising a gain input control.

3. The trailer brake controller of claim 1 , wherein the brake lever comprises a housing that at least partially encloses the control unit and is configured to slide forward with relation to the control unit to transmit the applied force to the control unit when the brake lever is pulled in the forward motion.

4. The trailer brake controller of claim 1 , wherein the brake lever is configured to be actuated by a force ranging from about 1 N to about 15 N.

5. The trailer brake controller of claim 1 , wherein the manual trailer brake control signal is configured to actuate electronic wheel brakes of a vehicle being towed by the motor vehicle.

6. A trailer brake control system for a motor vehicle, comprising:
a steering wheel comprising a rim and at least one spoke, the rim and the at least one spoke defining an open area of the steering wheel;
at least one control unit mounted to the at least one spoke; and
a brake lever coupled to the at least one control unit and extending adjacent to the at least one control unit along a longitudinal axis of the control unit;
wherein the brake lever is elongated along the control unit and is configured to be actuated by a driver of the motor vehicle by being pulled in a forward motion toward the driver, and
wherein the at least one control unit is configured to generate a manual trailer brake control signal based on a force applied to the lever by the driver to actuate electronic wheel brakes of a vehicle being towed by the vehicle.

7. The trailer brake control system of claim 6 , further comprising a gain input control.

8. The trailer brake control system of claim 7 , wherein the gain input control is coupled to the brake lever.

9. The trailer brake control system of claim 7 , wherein the gain input control comprises a control push surface, the control push surface being located directly above the at least one spoke within the open area of the steering wheel.

10. The trailer brake control system of claim 6 , wherein the at least one control unit is mounted behind the at least one spoke.

11. The trailer brake control system of claim 10 , wherein the at least one control unit is embedded within the at least one spoke.

12. The trailer brake control system of claim 10 , wherein the brake lever extends into the open area of the steering wheel so as to be visible to the driver of the motor vehicle through the open area of the steering wheel.

13. The trailer brake control system of claim 6 , wherein the steering wheel comprises two spokes positioned on opposite sides of the steering wheel from each other, and wherein the at least one control unit comprises a control unit mounted to each spoke on opposite sides of the steering wheel from each other.

14. The trailer brake control system of claim 6 , wherein the brake lever comprises a housing that at least partially encloses the control unit and is configured to slide forward with relation to the control unit to transmit the applied force to the control unit when the brake lever is pulled in the forward motion.

15. The trailer brake control system of claim 6 , wherein the brake lever is configured to be actuated by a force ranging from about 1 N to about 15 N.

16. The trailer brake control system of claim 6 , wherein the at least one control unit is further configured to receive braking inputs from at least one brake pressure sensor associated with a braking system of the motor vehicle and develop an automatic trailer brake control signal based on the braking inputs, wherein the automatic trailer brake control signal is configured to actuate the electronic wheel brakes of the vehicle being towed by the motor vehicle.

17. The trailer brake control system of claim 16 , wherein the manual trailer brake control signal is configured to override the automatic trailer brake control signal.

18. The trailer brake control system of claim 16 , wherein the control unit is further configured to receive signals relating to a velocity of the motor vehicle and adjust the automatic trailer brake control signal based on the velocity.

19. A method of manually controlling trailer brakes, the method comprising:
applying a force to a brake lever extending adjacent to and along a longitudinal axis of a control unit mounted to a steering assembly of a motor vehicle, wherein the brake lever is elongated along the control unit and the force is applied by pulling the brake lever in a forward motion toward a driver of the motor vehicle;
generating a manual trailer brake control signal based on the force applied to the brake lever; and
actuating electronic wheel brakes of a vehicle being towed by the motor vehicle based on the manual trailer brake control signal.

20. The method of claim 19 , wherein applying the force to the brake lever comprises pulling the brake lever in a forward motion toward the driver of the motor vehicle.

21. The method of claim 19 , wherein applying the force to the brake lever comprises applying about 1 N to about 15 N of force.

22. The method of claim 19 , wherein the brake lever is mounted to a spoke of the steering wheel.

23. The method of claim 19 , wherein the brake lever is mounted to a steering column.

24. The method of claim 19 , wherein the driver grips the steering wheel between an 8 o'clock and 10 o'clock position and/or a 2 o'clock and 4 o'clock position.

Assignees

• Ford Global Tech Llc

Inventors

• Diehl Cary Ochen
• Sims Russell Allan

Classifications

• B60T7/20

  specially for trailers, e.g. in case of uncoupling of {or overrunning by} trailer (inertia-actuated overrun brakes B60T13/08) · CPC title

• B60T7/085 Primary

  by electrical means, e.g. travel, force sensors · CPC title

• Y10T74/20372

  Manual controlling elements · CPC title

• Y10T74/20396

  Hand operated · CPC title

• B62D1/046

  Adaptations on rotatable parts of the steering wheel for accommodation of switches · CPC title