Electric steering system test bench and test method thereof

Abstract

The invention provides an electric steering system test bench and a test method thereof. Multiple items of test can be carried out on the electric steering system before whole vehicle assembly, the electric steering system can be developed perfectly, and the whole vehicle development time is saved. The electric steering system test bench is composed of a torque steering wheel, a mechanical steering gear assembly with a lateral drawbar, a signal conversion module capable of converting inputted control signals into CAN signals, and a power supply module, wherein the end part of the lateral drawbar of the mechanical steering gear assembly is connected with a force sensor and / or a loading device for providing load. The electric steering system test method comprises the following steps: a steering column of the to-be-tested electric steering system and the mechanical steering gear assembly are mounted together, the torque steering wheel is fixedly arranged on the steering column, the signal conversion module and the power supply module are respectively connected with a boosting module of the to-be-tested electric steering system, and then different input output parameters are set according to requirements for realizing different test verification.

Description

Technical field [0001] The invention belongs to the technical field of auto parts testing, and specifically relates to an electric steering system test bench and a test method thereof. Background technique [0002] With the development of the automobile industry, the application of traditional hydraulic steering systems has become less and less. In order to improve the handling performance and comfort of the entire vehicle, as well as reduce the fuel consumption of the entire vehicle, more and more automobiles adopt electric steering systems. [0003] The configuration rate of the electric power steering system of the products of domestic auto manufacturers is also increasing, but the application is not mature enough, and the product design phase lacks the ability to verify the system. Many manufacturers are in the process of road test after prototype car assembly. The electric power steering system is verified, but such a verification method has the following shortcomings: 1. Even...

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Problems solved by technology

[0003] The proportion of electric steering system configurations of domestic automobile manufacturers' products is also increasing, but the application is not mature enough, and the product design stage lacks the ability to verify the system. Carry out relevant verification on the electric steering system, but this verification method has the following disadvantages: 1. Even if there is a problem with the electric steering system, the development process of the entire vehicle will be delayed due to the rectification of the electric steering system; 2. Related The verification work is based on the driver's subjective feelings as the basis of judgment, which is not objective enough

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