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Mechanical-electric-magnetic-control combined simulation method for pure electric vehicle powertrain

A pure electric vehicle, co-simulation technology, applied in design optimization/simulation, electrical digital data processing, image data processing, etc. Can not reflect the impact of motor control strategy and other issues, to achieve the effect of improving performance and reducing R&D costs

Pending Publication Date: 2018-12-14
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0005] This simulation method separates the electromagnetic, electric control and mechanical parts, and cannot reflect the influence of the motor control strategy on the mechanical part. This is not consistent with the actual operation of the powertrain, and it is not a true electromechanical-magnetic-control joint simulation.

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  • Mechanical-electric-magnetic-control combined simulation method for pure electric vehicle powertrain
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  • Mechanical-electric-magnetic-control combined simulation method for pure electric vehicle powertrain

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Embodiment Construction

[0035] In order to more clearly demonstrate the advantages, implementation modes, feasibility and accuracy of the present invention, the present invention will be further described in conjunction with the accompanying drawings of the present invention.

[0036] A pure electric vehicle powertrain machine-electric-magnetic-control joint simulation method, comprising the steps of:

[0037] 1) Build the motor electromagnetic model, motor control strategy model, motor drive circuit model, and three-dimensional model of the mechanical powertrain;

[0038] 2) Set the real-time data exchange relationship between each model, among which, the motor control strategy model transmits control signals to the motor drive circuit model to control the operation of the motor drive circuit model;

[0039] The motor drive circuit model transmits voltage to the motor electromagnetic model to provide a voltage excitation source for the motor;

[0040] The motor electromagnetic model transmits elect...

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Abstract

The invention discloses a mechanical-electric-magnetic-control combined simulation method for pure electric vehicle powertrain. The method comprises the following steps: 1) establishing a motor electromagnetic model, a motor control strategy model, a motor driving circuit model and a three-dimensional model of a mechanical powertrain; 2) setting the real-time data exchange relationship among the models; 3) performing simultaneous operation of mechanical-electric-magnetic control and real-time data extrange to realize mechanical-electric-magnetic-control combined simulation of the powertrain; 4) obtaining the required powertrain signal. The invention improves the existing simulation method; an electromagnetic field, motor slot and other structures, motor control strategy and mechanical dynamics characteristics are fully reflected in the pure electric vehicle powertrain system model, reflecting more dynamic dynamics phenomenon, so that the results of combined simulation are closer to theactual situation, and the method make up the defect of the existing combined simulation method in which mechanical and electromagnetic and electric control are carried out separately, which is not inaccordance with the actual facts.

Description

technical field [0001] The invention relates to a pure electric vehicle power assembly joint simulation method, in particular to a pure electric vehicle power assembly electromechanical-magnetic-control joint simulation method. Background technique [0002] Many current research hotspots consider the motor control strategy alone, and simply control the torque fluctuation range of the motor. A simple motor control strategy cannot reflect the influence of the motor cogging structure, the electromagnetic field of the motor, and the dynamics of the powertrain on the powertrain. [0003] Many studies on electrical aspects stay in the performance design of the motor, including the design of efficiency and structure. Less consideration is given to the coupling between the electromagnetic field of the motor and the multi-physics field of the control strategy, and the accurate current, voltage, electromagnetic force, speed and electromagnetic torque of the motor cannot be obtained. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
CPCG06T17/00G06F30/20
Inventor 张念杨志坚韦峰
Owner SOUTH CHINA UNIV OF TECH
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