Patent ID: 6666527
Filing Date: 2003-12-23
Classification: B60T

Abstract:
A trailer brake system for a trailer being towed by a tow vehicle having a brake system, the trailer brake system comprising, in combination:a control sensor adapted to provide a signal when the braking system of the tow vehicle is actuated; at least one brake actuated by pressurized brake fluid; a brake fluid reservoir; a brake fluid pump connected to the brake fluid reservoir; a first valve connected to the brake fluid pump and directly connected to the at least one brake; a second valve directly connecting the at least one brake and the brake fluid reservoir; a controller in communication with the control sensor, the first valve, and the second valve and adapted to open the first valve to increase braking force applied to the at least one brake and to open the second valve to decrease braking force to the at least one brake; and a feedback sensor in communication with the controller and capable of generating a signal that represents braking force applied to the at least one brake.