How to classify automotive steering systems?

[MacWalker]

Automotive steering systems are divided into two major categories: mechanical steering systems and power steering systems. Steering systems that rely entirely on the driver's manual force are called mechanical steering systems, while those that utilize auxiliary power are called power steering systems. Power steering systems can be further classified into hydraulic power steering systems, electric power steering systems, and pneumatic power steering systems. Modern mid-to-high-end cars and heavy-duty vehicles widely adopt power steering systems, which not only significantly improve driving convenience but also enhance driving safety. Power steering systems are formed by adding a power-assisted steering device that relies on the engine's output power to the mechanical steering system. Passenger cars commonly use rack-and-pinion power steering mechanisms, which feature simple structure, high operational sensitivity, easy steering control, and require no regular inspection or adjustment due to their fully enclosed design.