To eliminate the disadvantages of heavy steering at the beginning of the steering lift, various power assisted devices began to appear in 1903. The auxiliary power mainly came from the vacuum booster and compressed air. However, the design of the steering gear was not completed at that time and the layout of the entire vehicle was affected. Defects such as limitations and poor handling have slowed development. Before the outbreak of World War II, the American company Vickers produced a hydraulic booster and used it on armored personnel carriers and trucks during the war. Then, in the 1950s, the power steering was improved and used in heavy vehicles. In cars and luxury cars. Since then, the automotive steering gear has entered a period of rapid development,