The first large-scale application of electric power steering was in 1993, when Italian car manufacturer Fiat introduced this innovative technology on its Punto model. The Fiat Punto was the world's first mass-produced car equipped with electric power steering.

Through the above analysis, it can be concluded that not all steering racks require hydraulic oil. Specifically, the steering racks of manual steering systems and electric power steering systems do not require hydraulic oil, while the steering racks of hydraulic power steering systems rely on hydraulic oil to provide steering assistance.

Chevrolet officially launched the power steering system in 1953. This time point is of great significance, marking an important step for Chevrolet in technological innovation. In 1953, Chevrolet's representative model, the Chevrolet Corvette, was launched as the brand's first two-seater sports car.

The work of the electric power steering system begins with the steering force sensor (Torque Sensor). When the driver turns the steering wheel, the sensor monitors the rotational torque on the steering wheel in real time. This information is transmitted to the vehicle's electronic control unit (ECU), and the ECU determines how much steering assistance is needed based on this information.

If your vehicle is equipped with a hydraulic power steering system, the condition of the hydraulic oil is crucial. Over time, the hydraulic oil may become dirty, lose viscosity, or even bubble, resulting in a decrease in the efficiency of the steering system. Therefore, regularly checking the quality of the hydraulic oil is the key to maintaining soft steering.

The reasons for the failure of electric power steering are: 1. Electrical system failure 2. Steering sensor failure 3. Control module (ECU) failure 4. Electric power motor failure 5. Power system problem 6. Mechanical problem 7. Temperature change 8. Moisture intrusion

The manual steering system relies entirely on mechanical transmission, and there is no power steering device in the system. The steering force is directly applied by the driver and transmitted to the wheels, so there is no need for a power steering pump.

In summary, the most efficient steering system should be the electric power steering system (EPS). This is because it performs well in energy efficiency, response speed and driving experience.

Mercedes-Benz offers electric power steering in many of its models. For example, Mercedes-Benz's C-Class, E-Class and S-Class models have all adopted electric power steering technology.

When the electric power steering system fails, the vehicle may experience the following situations: steering becomes difficult, steering response is delayed, the vehicle cannot maintain a straight line, the driver warning system is activated, and emergency control capabilities are reduced.