High-current permanent magnet synchronous motor multi-drive control integrated device

Abstract

The invention provides a heavy-current permanent magnet synchronous motor multi-drive control integration device. The heavy-current permanent magnet synchronous motor multi-drive control integration device is characterized in that one end of a chassis of a motor of the heavy-current permanent magnet synchronous motor multi-drive control integration device is connected with a rear end cover; four groups of driving modules, a motor control panel, a power panel and a full vehicle control panel are arranged in the rear end cover; a cooling water channel is formed in the rear end cover, a mounting support is welded at the bottom of the chassis; four groups of motor windings, a rotary transformer, a temperature sensor and an output shaft are arranged inside the chassis; the rotary transformer and the temperature sensor are respectively connected with the motor control panel by virtue of a wire, the motor control panel is respectively connected with the power panel and the full vehicle control panel by virtue of a wire, and the output shaft is connected with an automobile driving end. The heavy-current permanent magnet synchronous motor multi-drive control integration device has the advantages that rematching and optimization design are carried out on heavy-current permanent magnet synchronous motor multi-drive control and a battery electric vehicle or hybrid electric vehicle driving power assembly is integrated.

Description

Technical field [0001] The invention relates to the field of automobile motors, in particular to a large-current permanent magnet synchronous motor multi-drive control integrated device. Background technique [0002] At present, the motor control systems of pure electric and hybrid vehicles are composed of separate drive motors and motor controllers, without optimized design matching, high cost, multiple wiring harnesses, complex vehicle wiring, complicated mechanical and electrical connections, large electromagnetic interference, and EMC is difficult to solve. The current motor control systems for pure electric and hybrid vehicles have the following disadvantages: [0003] 1. It is composed of separate components such as drive motor + wiring harness + motor controller: Huang Surong of Shanghai University (Design of Permanent Magnet Motor for New Energy Vehicles) only simulates the design of the motor and the controller. How to proceed between the motor and the controller Connect...

AI Technical Summary

Problems solved by technology

[0003] 1. It consists of separate components such as drive motor + wire harness + motor controller: Huang Surong of Shanghai University (Design of Permanent Magnet Motor for New Energy Vehicles) only simulates the design of the motor and controller. How to communicate between the motor and the controller connection, no solution is given;

[0004] 2. Without optimal design and matching, the motor stator line is connected to the controller through wires + connectors, resulting in high cost, many wiring harnesses, complex vehicle wiring, complex mechanical and electrical connections, and large electromagnetic interference;

In this way, the cross-sectional area of ​​the wiring harness between the controller and the motor is very large, the cost is high, and the assembly is difficult; especially when the IGBT drive modules are connected in parallel, the parallel performance of each group of IGBT drive modules is required to be consistent, otherwise it is particularly easy to fail, and a balance must be added The circuit ensures the current balance of the parallel IGBT drive modules, and the current products all adopt this mode

Traditional permanent magnet synchronous motor and controller, when the IGBT drive module fails, the car can no longer continue to run

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