Brake testing device

摘要

A brake testing device include a remote operated control module which is installed on a towing vehicle to remotely actuate the brake and turn signal lights for testing purposes. When installed on a truck with air brakes and a connection to air brakes on a connected trailer, auxiliary valves are installed on the truck brake pneumatic control line and the trailer brake pneumatic control line which are controlled remotely through the control module to test activation of the air brakes on the truck and trailer respectively.

主权项

1. A brake testing device in combination with a towing vehicle for connection to a trailer having a left turn indicator, a right turn indicator and air brakes, wherein the vehicle comprises:
a left turn indicator circuit for actuating a left turn indicator of the vehicle; a right turn indicator circuit for actuating a right turn indicator of the vehicle; a trailer connector including a left turn indicator output in connection with the left turn indicator circuit for actuating the left turn indicator of the trailer and a right turn indicator output in connection with the right turn indicator circuit for actuating the right turn indicator of the trailer; an air braking system comprising a trailer brake connector arranged for connection to the air brakes of the trailer, a supply line for supplying air at a supply pressure, an exhaust line for exhausting compressed air, a trailer control line connected to the trailer brake connector, and a trailer brake controller arranged to selectively couple the trailer control line to either one of the supply line or the exhaust line to control operation of the air brakes of the trailer; and wherein the brake testing device comprises:
a remote controller arranged to generate a left turn signal, a right turn signal and a brake signal;a trailer auxiliary valve in communication between the trailer control line, the supply line and the exhaust line so as to be operable between a first position in which the trailer control line communicates with the supply line corresponding to releasing of the air brakes of the trailer and a second position in which the trailer control line communicates with the exhaust line corresponding to actuation of the air brakes of the trailer; anda control module including:
a receiver arranged to receive the left turn signal, the right turn signal and the brake signal from the remote controller;a left turn output connected to the left turn indicator circuit so as to be arranged to activate the left turn indicator of the trailer in response to receipt of the left turn signal by the receiver;a right turn output connected to the right turn indicator circuit so as to be arranged to activate the right turn indicator of the trailer in response to receipt of the right turn signal by the receiver; anda trailer brake output connected to the trailer auxiliary valve so as to be arranged to displace the trailer auxiliary valve from the first position to the second position in response to receipt of the brake signal by the receiver.