What is the primary role of coil springs in a suspension system?

The primary role of coil springs in a suspension system is to support the weight of the vehicle and absorb impacts. These springs play a crucial part in maintaining the vehicle's stability and comfort by allowing the suspension to flex while ensuring that the tires remain in contact with the road surface. When the vehicle encounters bumps or uneven pavement, coil springs compress and expand, absorbing energy and minimizing the transfer of shocks to the vehicle’s chassis and occupants. This function is vital for both ride quality and handling performance, allowing for a smooth driving experience and maintaining vehicle control during various driving conditions.