The car suspension system is a core component connecting the wheels and the vehicle body, whose main functions are to absorb road bumps, maintain tyre grip and enhance ride comfort. The system consists of springs (such as coil springs or air springs), shock absorbers (hydraulic or electronically controlled) and linkage mechanisms (such as MacPherson strut or multi-link systems). Among them, the shock absorbers are responsible for suppressing the rebound oscillation of the springs, while the linkages precisely control the wheel movement trajectory. For technical applications, the local market is transitioning from traditional steel suspensions to lightweight aluminum materials. Meanwhile, electronically controlled air suspension systems are increasingly favored by high-end models due to their ability to automatically adjust vehicle height and damping stiffness. Suspension tuning must account for local winding roads and humid climate conditions. For instance, Proton models have optimized suspension geometry for Southeast Asian road conditions, enhancing vibration absorption while maintaining handling stability. These innovations are driving increased demand for high-performance aftermarket components.
