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

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...

AI Technical Summary

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 driving, and improves the pure power vehicle powertrain and its key technologies. The R&D test level can greatly shorten the R&D cycle of powertrain and related components, and reduce capital investment

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