Patent ID: 7494131

Claim:
A chassis stabilizing system for a vehicle comprising: a chassis including a first chassis element and a second chassis element; and an assembly comprising: a fluid pressure actuator, which has a guide part and an active part movable relative thereto, and a fluid pressure source which is in communication with the fluid pressure actuator in order to supply the latter with fluid under pressure to move the active part relative to the guide part, wherein: a locking device is provided which can be selectively operated to interrupt the connection of the fluid pressure actuator with the fluid pressure source and thereby prevent movement of the active part relative to the guide part, a control unit is provided that is responsive to a fault and to a defined position of the fluid pressure actuator for operating the locking device, and the fluid pressure actuator is provided with a sensor by means of which the control unit can determine the defined position of the fluid pressure actuator, the guide part being connected with the first chassis element, and the active part being connected with the second chassis element, and the active part being able to alter its position relative to the guide part by action with the fluid under pressure, in order to alter the characteristics of the chassis.