A pure electric vehicle motor controller with compound regenerative braking function

A composite regenerative braking and motor controller technology, applied in electric vehicle charging technology, electric vehicles, electric braking systems, etc., to improve the charging environment, increase efficiency, and reduce torque ripple

Inactive Publication Date: 2018-01-26
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent application number is "201310526454.8", which aims to overcome the shortcomings of traditional regenerative braking and mechanical braking, integrate the advantages of both, and propose a mechanical and electrical composite braking device and method, but does not involve Strategies for Braking Energy Recovery of Hub Motors

Method used

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  • A pure electric vehicle motor controller with compound regenerative braking function
  • A pure electric vehicle motor controller with compound regenerative braking function
  • A pure electric vehicle motor controller with compound regenerative braking function

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Embodiment approach

[0028] figure 1 It is a block diagram of the hardware design structure of the pure electric vehicle motor controller of the present invention, including: pre-charge / discharge circuit (1), MOSFET parallel isolation drive circuit (2), double rotor position signal verification circuit (3), overcurrent and overvoltage Protection module (4), main control isolated power supply circuit (5) and isolated CAN communication circuit (6); among them, pre-charge / discharge circuit (1), MOSFET parallel isolation drive circuit (2), double rotor position signal verification circuit (3), the overcurrent and overvoltage protection module (4), the main control isolated power supply circuit (5) and the isolated CAN communication circuit (6) are embedded in each wheel drive controller; two sets of Hall sensors are located in the pure electric vehicle motor Among them, the CAN bus is used for data communication between the vehicle controller and other sub-modules.

[0029] The controller design pre-...

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Abstract

The invention aims at the defects of low energy recovery efficiency and poor braking ability of the existing pure electric vehicle regenerative braking system, and provides a pure electric vehicle motor controller with compound regenerative braking function, which belongs to the technical field of electric vehicles; the motor The controller includes a hardware circuit and a composite regenerative braking control strategy; wherein, the hardware circuit includes a precharge / discharge circuit, an overcurrent and overvoltage protection module, a MOSFET parallel isolation drive circuit, a dual rotor position signal verification circuit, and a main control isolation power supply circuit and isolated CAN communication circuit; the composite regenerative braking control strategy combines the respective advantages of the half-bridge chopping feedback braking control strategy and the full-bridge chopping feedback braking control strategy under different vehicle speed conditions, and is suitable for pure The electric vehicle regenerative braking system adopts the composite control of the full-bridge chopper regenerative braking control strategy and the half-bridge chopper regenerative braking control strategy.

Description

technical field [0001] The invention relates to the field of electric vehicle control, in particular to a compound regenerative braking control system for pure electric vehicles. Background technique [0002] Throughout history, the development of electric vehicles precedes the development of traditional fuel vehicles. However, due to the short driving range of electric vehicles, long charging time, and poor safety of on-board power supplies, electric vehicles have been developed for a period of time before being left behind by people. , gradually replaced by fuel vehicles. Due to the aggravation of energy crisis, environmental pollution and other issues in recent years, countries have also begun to pay attention to the research and development of electric vehicles. When electric vehicles are running in urban conditions, they brake frequently and lose a lot of energy. According to the characteristics of electric vehicles, the motor can be converted into a generator during t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/10
CPCY02T90/16
Inventor 陈国迎宗长富麦莉刘文超李春善张冰刘欢
Owner JILIN UNIV
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