Abstract: Systems and methods of overriding a conventional trailer emergency brake system to preclude and alert others as to inadvertent or premature movement of the trailer are described herein. One implementation includes a safety valve operatively positioned in the emergency braking system of a trailer that may be engaged to override the brake valve located in a tractor to prevent a truck driver from prematurely or inadvertently moving the trailer. In addition, the system may include a one way check valve to allow air upstream of the safety valve to bleed out of the brake system when the safety valve is closed (to prevent movement of the trailer) before the emergency brakes for the trailer are set by the driver. A communication system may also be provided to alert the driver via a remotely located computing device that the emergency brakes for the trailer need to be set.

Abstract: Systems and methods of overriding a conventional trailer emergency brake system to preclude and alert others as to inadvertent or premature movement of the trailer are described herein. One implementation includes a safety valve operatively positioned in the emergency braking system of a trailer that may be engaged to override the brake valve located in a tractor to prevent a truck driver from prematurely or inadvertently moving the trailer. In addition, the system may include a one way check valve to allow hydraulic fluid upstream of the safety valve to bleed out of the brake system when the safety valve is closed (to prevent movement of the trailer) before the emergency brakes for the trailer are set by the driver. A communication system may also be provided to alert the driver via a remotely located computing device that the emergency brakes for the trailer need to be set.

Abstract: A device and method to override a conventional trailer emergency brake system that may include a safety valve to override the brake valve located in a tractor. A preferred safety valve may be located in a sidewall of a trailer. In one position, a preferred safety valve may prevent compressed air from being transmitted to the trailer parking brakes so that a truck driver is unable to release the trailer brakes. In another position, a preferred safety valve may divert compressed air to one or more devices to alert a driver, a dock worker or others of an effort to release the trailer parking brakes. In another position, a preferred safety valve may permit compressed air to be transmitted so that a truck driver is able to release the trailer brakes.