| 摘要 |
<p>The brake has an operating output (22) connected with a spring accumulator cylinder (20). A valve device (26) i.e. 2/2 way valve, is electrically switched by an electronic control unit (24) and positioned between a brake valve (10) and a control input (14) of a relay valve (12). An indicator is adjusted during the presence of a person for guiding a commercial vehicle and electrically evaluated by the electronic control unit. The electronic control unit prevents ventilation of the cylinder by the valve device, when the indicator is not present.</p> |
