There are generally four types of suspension systems used in vehicles:
Independent Suspension: In this system, each wheel is attached to the vehicle's body separately, allowing them to move independently of each other. This provides a smoother ride and better handling.
Dependent Suspension: This type of suspension is also known as a solid axle suspension, and it connects both the wheels of an axle together, causing them to move in unison. This type of suspension is commonly found on heavy-duty trucks and off-road vehicles.
Semi-Independent Suspension: This system is a combination of independent and dependent suspension systems, where the wheels are not completely independent but do have some freedom of movement. This type of suspension is commonly found on rear-wheel-drive cars.
Air Suspension: This type of suspension uses compressed air to support the weight of the vehicle. It provides a smoother ride and can adjust the ride height of the vehicle for different driving conditions, such as off-roading or highway driving. Air suspension is commonly found on luxury vehicles and heavy-duty trucks.