Fig. 7.5. Rear suspension: 1 – camber lever; 2 – shock absorber; 3 – upper spring support; 4 – spring; 5 – differential; 6 – stabilizer; 7 – diagonal lever; 8 – spring lever; 9 – cardan shaft flange; 10 – rear suspension subframe; 11 – pushing lever
All rear suspension parts are secured to a wide subframe 10 (Fig. 7.5), which is secured to the body bottom on four large rubber supports. The differential 5 is secured to the subframe in the middle. All five levers (spring, pull, push, camber and diagonal) on both sides they are attached via elastic connections to the subframe and wheel suspension.
Advantages of the rear suspension with spatial levers:
1. Together with the front suspension on double wishbones, it provides driving performance that is minimally dependent on the impact of lateral, braking and drive forces.
2. Although the suspension has a long travel, there are practically no side effects until its middle (widening the track or changing the toe angle). The result is excellent linearity of movement.
3. Negative camber value provides good lateral wheel slip. Throughout the entire suspension operation, the camber angle does not take a positive value.
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4. The vibrations of the rear part of the body that occur during braking and acceleration are leveled by 60%. Thanks to this, it does not rise during braking and does not sag during acceleration.
5. Thanks to three-stage insulation using elastic rubber elements between the wheels and the body, the noise from the chassis is practically inaudible in the cabin.
6. Reduced reactions to load changes. For example, when suddenly releasing the "gas" in a turn, there is resistance to reducing the turning radius.
7. Wheel alignment is adjustable using adjustable levers.