The front suspension is double wishbone, the lower arm is equipped with two floating joints.
Rear suspension – multi-link type E.
The offset of the kingpin relative to the wheel centre of the front suspension has been minimised. The front upper arm and both lower arms are equipped with low-friction ball joints. The track width has been increased by 50 mm compared to the previous model. This is equivalent to lowering the car's centre of gravity by 20 mm. As a result, steering stability when cornering has been improved.
Fig. 4.1. Features of the vehicle platform: 1 – center of gravity; 2 – reduced by 20 mm; 3 – height; 4 – track width (626); 5 – track width (Mazda 6); 6 – increased by +50 mm
The axis of rotation is installed slightly obliquely. The front shock absorber is equipped with a rebound spring. A separate support is used for the shock absorber. To increase the rigidity of the structure, a front cross member and a reinforcement for adjusting the camber of the rear wheels are installed. The transverse rod and lower arm have a special cam and a tightening clutch (Fig. 4.1).
Fig. 4.2. Setting the height of the vehicle's roll center: 1 – height of the front roll center; 2 – height of rear roll center; 3 – axis of rotation; 4 – continuation of the line (parallel to the base) from the height of the front roll center
(Content based on information from: mazbook)
The platform geometry allows for the placement of the yaw axis (an invisible vertical axis relative to which a vehicle responds to the driver's control input) in the center of the vehicle. The height of the front roll center is less than the rear roll center. Straight-line control is improved by setting the pivot axis at a slight angle (Fig. 4.2).
Table 4.1. Technical characteristics of front and rear suspensions
*1 Engine coolant and engine oil are at the specified level. The fuel tank is full. The spare tire, jack and tools are in their proper places.
*2 The difference between the left and right wheels must not exceed 1°30'.
*3 The distance between the wheel center and the edge of the wing is as follows:
- front – 402 mm.
- rear – 392 mm.