Performance test system of electric power steering system for storage logistics vehicle

Abstract

The invention discloses a performance test system of an electric power steering system for a storage logistics vehicle, which comprises a test bed support, an EPS system assembly and a detection system. The EPS system assembly and the detection system are installed on the test bed support. The test bed support comprises a test bed bottom plate, an inclined support adjusting plate and an inclined support. The detection system comprises a first torque sensor, a torque acquisition device, a second torque sensor, an electronic control unit ECU and an input motor control unit. The torque signal acquisition device connected with the second dynamic torque sensor is provided with an inner rotating shaft and an outer rotating shaft which can rotate relatively, wherein the inner rotating shaft is provided with a first torsion spring compression bar and a second torsion spring compression bar, and the outer rotating shaft is provided with a first torsion spring fixing bar and a second torsion spring fixing bar to compress the torsion spring. The EPS system assembly comprises a steering wheel, an input shaft, a torque input large gear, a first coupling, a second coupling, a first bevel gear shaft, a first bevel gear, a second bevel gear, a second bevel gear shaft, a booster large gear, a large gear shaft, a third coupling, a fourth coupling and a magnetic powder brake connected in sequence.

Description

technical field [0001] The invention relates to the field of performance testing of electric power steering systems of vehicles, in particular to a performance testing system of electric power steering systems of storage logistics vehicles. Background technique [0002] Electric Power Steering (EPS for short) is a power steering system that directly relies on the motor to provide auxiliary torque. In recent years, it has become a research hotspot in the domestic vehicle field. at a relatively basic stage. The performance of EPS is directly related to the safety and reliability of the vehicle, driving comfort, sensitivity and lightness of operation. [0003] Electric power steering systems can be mechanically divided into mechanical steering systems and power steering systems. The main components of mechanical steering systems in most electric power steering systems are torque signal acquisition structures, which cannot complete power steering for different styles or types o...

AI Technical Summary

Problems solved by technology

[0003] Electric power steering systems can be mechanically divided into mechanical steering systems and power steering systems. The main components of mechanical steering systems in most electric power steering systems are torque signal acquisition structures, which cannot complete power steering for different styles or types of electric vehicles. The test requirements of the system, so it is urgent to design a test bench with strong versatility, reliable structure and simple test

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