| 摘要 |
<p>The electrohydraulic or electropneumatic braking control device for trailer axles having power brakes includes a hydraulic or pneumatic circuit (20) mounted on the trailer and mainly made up of a compressed air storage device (21) wherein the internal pressure is automatically set (22, 23, 24) above a minimum value, and a control valve (27) which opens in proportion to a controlling current dependent on the pressure applied to the towing vehicle's brake pedal (12) and on an adjustment (14) made according to the load on the trailer. If the hitch snaps or the trailer becomes uncoupled, the resulting disconnection of the coupling (11) actuates a safety valve (28) which automatically causes the trailer to stop rapidly. Said safety valve also comprises a manual control (28e) whereby the brake can be released then reapplied to assist man÷uvring the trailer. The trailer can have the breaking device built in by the manufacturer or be retrofitted therewith with only a few alterations of the towing vehicle being required.</p> |
