| 摘要 |
<p>A wheel suspension system (10) for a vehicle such as a truck trailer (19). Wheels (22, 24, 26, 28) of the suspension system are attached to stub axles (48) supported by pivoting trailing arm wheel supports (40a, 40b). The wheel supports are arranged on a sub-frame (38) which can be slidingly coupled to the underneath of the trailer. Each wheel support is urged apart from the sub-frame by a spring such as an air spring (46). In one embodiment the air springs are pressurized under the control of an electronic controller (100). The rotational axes (30, 32, 34, 36) of the wheels are staggered or spaced apart, such that the rotational axes of the wheels on one side of the sub-frame are not coincident with the rotational axes of the wheels on the other side of the sub-frame.</p> |
