System, controller and method for preventing vehicle rollaway

摘要

Various embodiments of a controller, system and method of preventing vehicle rollaway for a heavy vehicle are disclosed. The controller receives a service brake signal indicating an operator has engaged the service brakes, a parking brake signal indicating the operator intent to actuate the parking brake and a signal indicative of motion. The controller transmits a control signal to at least two braking system components in response the service brake signal, the parking brake signal, and the motion of the vehicle to maintain engagement of the vehicle service brakes after the service brake pressure signal begins to decrease.

主权项

1. A controller for a vehicle braking system comprising: an input for receiving a service brake pressure signal; an input for receiving a parking brake signal; an output for transmitting a control signal to at least one associated braking system component; and control logic, wherein the control logic: receives the service brake pressure signal indicating the operator has engaged the vehicle service brakes and the parking brake signal indicating an operator's intent to park the vehicle; and transmits the control signal to the output to maintain engagement of the service brakes in response to the service brake pressure signal indicating a reduction in the service brake pressure.