| 摘要 |
<p>The invention relates to a combined service brake and parking brake cylinder (1) for a vehicle, including: a service brake piston (10, 12) arranged in a service brake cylinder (2) and controlled by a service brake pressure formed on the basis of the actuation of a service brake actuating member, said service brake piston actuating a braking mechanism; and a parking brake cylinder (4) with a control chamber (48, 34), which can be pressurised or relieved of pressure in order to control a parking brake piston (30) that can be locked by means of a locking device (50). In response to a parking brake signal, the parking brake piston (30) can be locked by the locking device (50) in a position in which it holds the service brake piston (10, 12), bought into a tensioned position during the service braking, in said tensioned position. The invention provides that both the locking device (50) and the parking brake piston (30) are hydraulically controlled by the service brake pressure.</p> |
