Pic. 7.5. Rear suspension: 1 – camber lever; 2 - shock absorber; 3 – the top support of a spring; 4 - spring; 5 - differential; 6 - stabilizer; 7 – diagonal lever; 8 – spring lever; 9 - flange of the cardan shaft; 10 – rear suspension subframe; 11 - pushing lever
All parts of the rear suspension are mounted on a wide subframe 10 (pic. 7.5), which is fixed to the bottom of the body on four large rubber supports. In the middle, a differential 5 is attached to the subframe. All five levers (spring, pull, push, camber and diagonal) on both sides are attached through elastic connections to the subframe and wheel suspension.
Spatial A-arm Rear Suspension Benefits:
1. Together with the double wishbone front suspension, driving performance is provided that is minimally dependent on the effects of lateral, braking and driving forces.
2. Although the suspension has a lot of travel, there are practically no side effects until the middle of it (widening the track or changing the toe angle). The result is excellent straightness of movement.
3. Negative camber provides good wheel slip performance. Throughout the course of the suspension, the camber angle does not take a positive value.
4. The vibrations of the rear part of the body that occur during braking and acceleration are aligned by 60%. Thanks to this, it does not rise when braking and does not sag when accelerating.
5. Due to the three-stage insulation using elastic rubber elements between the wheels and the body, the noise of the running gear is almost inaudible in the cabin.
6. Reduced response to load changes. For example, with a sudden reset «gas» in a turn, there is resistance to a decrease in the cornering radius.
7. Wheel setting is adjustable thanks to the adjustable arms.