Load simulation device used for electric power test and control method for system thereof

A load simulation and control method technology, applied in the direction of measuring devices, general control systems, adaptive control, etc., can solve the problems of eddy current dynamometer influence, shorten the development cycle of powertrain and related parts, and low control accuracy , to improve the R&D test level, shorten the R&D cycle, and achieve the effect of accurate and reliable test platform

Inactive Publication Date: 2018-07-20
HUNAN VICRUNS ELECTRIC TECH +1
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Problems solved by technology

It solves the problems of low control precision of the hydraulic dynamometer in the bench test, the limitations of the eddy current dynamometer and the influence of the weather environment on outdoor d

Method used

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  • Load simulation device used for electric power test and control method for system thereof
  • Load simulation device used for electric power test and control method for system thereof
  • Load simulation device used for electric power test and control method for system thereof

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0047] The present invention analyzes the electric vehicle load simulation test platform, and aims at the characteristics of its small inertia, its own inertia and resistance that are difficult to accurately model, and uses the indirect control method of the load motor speed closed-loop to simulate the loading of the load, thereby automatically performing torque compensation. Its working principle is to calculate the target simulation speed of the system according to th...

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Abstract

The invention discloses a load simulation device used for electric power test and a control method for a system thereof. The load simulation device comprises a drive motor and a control module, an electric vehicle speed control module, and a load motor and a control module. The electric vehicle speed control module is a vehicle load mathematical model. The drive motor is a permanent magnet synchronous motor. The load motor is a direct current motor. The load simulation system calculates the target simulation speed of the system based on the drive torque of the electric vehicle drive motor andthe load model of a vehicle. The target simulation speed is used as the target rotation speed of the load motor coupled to the drive motor to control the speed of the load motor. According to the invention, the control precision is high; outdoor driving is not affected by the weather environment; the research and development test level of a pure power vehicle powertrain and key technologies thereof is improved; the development cycle of the powertrain and related components thereof can be greatly shortened; and capital investment is reduced.

Description

technical field [0001] The invention relates to the technical field of automotive power system testing, in particular to a load simulation device for electrodynamic testing and a control method for the system thereof. Background technique [0002] With the increasing demand of people's life, the energy is also increasingly scarce, and the energy problem has become a strategic issue for the development of the national economy. From the perspective of national security, energy resources have been closely linked with economic development and national security. The stable supply of energy is the focus of the country and the core content of my country's energy security strategy. Therefore, in the face of resource shortage and environmental protection issues, the development of electric vehicles has become the mainstream trend of the development of the automobile industry. [0003] The structure of a pure electric vehicle includes the electric drive control system, vehicle chassi...

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Application Information

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IPC IPC(8): G05B13/04G01M17/007
CPCG01M17/007G05B13/042
Inventor 刘平尹书虎覃思雨罗德荣黄守道朱伟进王涛
Owner HUNAN VICRUNS ELECTRIC TECH
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