###### Abstract
Compared to the original system, the proposed system can improve the steering smoothness and reduce energy loss, but the specific steering conditions are not analyzed in this paper [23]. Although the open steering system can achieve the reduction of energy consumption by control methods, the pressure difference of the hydraulic valve still leads to energy loss, so some scholars have researched the application of a closed system for hydraulic steering. [PERSON] et al., used direct drive hydraulic transmission to implement the function of the two-cylinder hydraulic power transmission system, and the function of the system was verified by the test bench Dolores model, which laid the foundation for future research based on this test bench, but the energy consumption analysis of the system based on actual working conditions was not carried out in this paper [24]. [PERSON] et al. proposed a closed wire-controlled variable pump steering system, which controls the displacement of the variable pump by collecting vehicle signals. Under the same operating conditions, the variable displacement pump in-line closed steering system saves 14.5% fuel compared with the traditional loader steering system, but the analysis in the paper is still based on the traditional fuel-based loader and does not investigate the electrification of the loader [25]. [PERSON] et al. developed a new loader steering system based on the closed pump cylinder variable speed control principle, which changes the rotation direction of the servo motor and the steering direction and speed of the loader are controlled by changing the rotation direction and speed of the servo motor, which completely avoids the throttling loss, and the steering system has high smoothness and the energy consumption efficiency of the steering system reaches 80% using simulation analysis; however, there is no comparison with the energy consumption of the traditional steering system, and there is no further verification of the energy consumption efficiency of the system by experiment [26]. As mentioned above, in the open steering system the throttling loss cannot be eliminated due to the existence of the reversing valve. Therefore, the closed-loop pump control system that eliminates the hydraulic reversing valve has great energy-saving advantages and application prospects. An electro-hydraulic flow matching steering system for electric wheel loaders based on closed-circuit pump-control is proposed for the shortcomings of the traditional steering system used in electric loaders, combined with wire-controlled steering technology. The steering system uses the servo motor to drive the hydraulic pump to supply oil independently, correlates the tilt angular speed of the electric control handle with the speed of the servo motor, and makes them into a certain proportional relationship so that the hydraulic pump outputs the oil matching the flow required by the steering hydraulic system to the steering hydraulic cylinder, which eliminates energy loss caused by throttling and overflow of the hydraulic steering system to achieve the purpose of energy-saving. The paper is organized as follows: Section 2 introduces the working principle of the steering system. Section 3 analyzes the system characteristics. Section 4 introduces the closed-loop control strategy for the steering angle of the loader. Section 5 presents the experimental findings. Section 6 is the conclusion.