In the current automotive market, hydraulic power steering systems (HPS) and electronic hydraulic power steering systems (EHPS) are still widely used, and both systems rely on power steering pumps.

Hydraulic power steering rack (HPS Rack) is the most common type of steering system in traditional fuel vehicles. Its core is to provide steering assistance through hydraulic pressure. This rack usually works with a hydraulic pump, oil pipe, valve and hydraulic oil tank.