Control apparatus for controlling a brake of a unit hauled by a vehicle

A control apparatus for controlling a brake of a unit hauled by a vehicle comprising:

• a plurality of brakes for braking the wheels of the vehicle;
• a trailer brake for braking the hauled unit;
• and
• a parking brake for keeping the vehicle braked while it is stationary;
• wherein the control apparatus comprises:
• a line for sending a fluid to the trailer brake through a control valve in order to brake the hauled unit in certain working conditions, wherein:
• the line is connectable to a pedal arrangement in order to allow the trailer brake to be activated by pushing at least one pedal of the pedal arrangement;
• and
• the pedal arrangement comprises a first pedal for braking a right rear wheel of the vehicle and a second pedal for braking a left rear wheel of the vehicle;
• a further line for sending a further fluid to the trailer brake in order to activate the trailer brake in other working conditions;
• and
• a valve device for controlling flow of the further fluid in the further line, the valve device being responsive to a signal indicative of the status of the parking brake.