| 摘要 |
The invention is an air suspension system on vehicle driven axle to maintain substantially constant pinion shaft angle in response to traction force reaction on axle and brake torque induced reaction on axle and in response to position of axle in jounce and rebound. The invention is based on four bar mechanism geometrically arranged to achieve substantially constant pinion shaft angle. The four bars are represented by 1) hanger bracket, 2) trailing arm, 3) link rod and 4) driven axle housing with its attachments. In one of the preferred embodiments, the trailing arm is pivotally connected to top portion of hanger bracket attached to frame rail. The middle portion of trailing arm is“spherically”connected to axle top. Rear portion of trailing arm is connected to frame rail by air spring and shock absorber. One end of said link rod is pivotally connected to lower portion of hanger bracket and other end is pivotally connected to lower portion of axle.
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