US 11,745,705 B2
Systems for anti-lock braking for a tow vehicle
Todd J. Brinkman, Rochester Hills, MI (US); Edward T. Heil, Howell, MI (US); Douglas J. Spry, Auburn Hills, MI (US); and Steven G. Reini, Waterford, MI (US)
Assigned to GM Global Technology Operations LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Nov. 24, 2020, as Appl. No. 17/102,983.
Prior Publication US 2022/0161770 A1, May 26, 2022
Int. Cl. B60T 8/17 (2006.01); B60T 13/66 (2006.01); B60T 8/88 (2006.01); B60T 8/32 (2006.01)
CPC B60T 8/1708 (2013.01) [B60T 8/323 (2013.01); B60T 8/885 (2013.01); B60T 13/662 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An anti-lock braking system for a triple axle trailer having a body, a first wheel coupled to a first axle, a second wheel coupled to a second axle, and a third wheel coupled to a third axle, and each of the first, second, and third axles are coupled to the body and positioned along a longitudinal axis of the trailer, the system comprising:
a first wheel speed sensor coupled to the first wheel;
a second wheel speed sensor coupled to the third wheel;
a spring mount pivotably coupled to the body;
a first suspension member coupled to the first wheel and to the spring mount;
a second suspension member coupled to the second wheel and to the spring mount; and
a hydraulic braking actuator having a first channel coupled to the first wheel and the second wheel and a second channel coupled to the third wheel;
wherein the spring mount pivots in response to an applied brake torque to increase a normal force applied to the second wheel as compared to a normal force applied to the first wheel.