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A balance car control method, device and system

A control method and technology of a balance car, applied in control systems, vector control systems, control electromechanical transmissions, etc., can solve problems such as excessively high battery voltage, reduce feedback energy, improve excessively high battery voltage, and improve The effect of user experience

Active Publication Date: 2019-11-05
广东高标智能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a balance car control method, device and system to solve the problem of how to improve the energy feedback caused by braking of the balance car, so that the battery voltage rises too high

Method used

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  • A balance car control method, device and system
  • A balance car control method, device and system
  • A balance car control method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 It shows the implementation flow of the self-balancing car control method provided by the first embodiment of the present invention, and the self-balancing car control method can be executed by a processor in the self-balancing car. It should be noted, figure 1 Only the steps related to the embodiment of the present invention executed by the processor are shown, please refer to Image 6 and Figure 7 , figure 1 The balance car control method shown is equivalent to being executed by the anti-overcharge device in the processor. Therefore, the control method executed by the processor is not limited to figure 1 The steps shown can also include other related steps for controlling the permanent magnet synchronous motor, for example, please refer to Figure 7 , the processor may also include a balance control device and a vector control device. Wherein, the vector control device is used to drive the permanent magnet synchronous motor through the inverter by usin...

Embodiment 2

[0083] image 3 It shows the implementation flow of the balance car control method provided by the second embodiment of the present invention, image 3 The steps shown can also be executed by the overcharge prevention device in the processor, which will be described in detail as follows.

[0084] In step S301, the voltage value of the battery of the self-balancing vehicle is obtained.

[0085] In step S302, when it is judged that the voltage value is greater than or equal to the set safety threshold and less than the maximum charging voltage that the battery can withstand, set the first given value as the excitation current command required by the permanent magnet synchronous motor vector control method value to control the permanent magnet synchronous motor to reduce the feedback energy generated by braking.

[0086] Wherein, the set safety threshold corresponds to a fully charged state of the battery. The permanent magnet synchronous motor vector control method is used to...

Embodiment 3

[0107] Figure 5 It shows a schematic structural diagram of a self-balancing car control device provided by the third embodiment of the present invention, and the self-balancing car control device includes the following contents.

[0108] The acquisition unit 501 is used to acquire the voltage value of the battery of the balance car.

[0109] The judging unit 502 is used to set the first given value as the excitation required by the permanent magnet synchronous motor vector control method when judging that the voltage value is greater than or equal to the set safety threshold and less than the maximum charging voltage that the battery can withstand The current command value is used to control the permanent magnet synchronous motor to reduce the feedback energy generated by braking. Wherein, the set safety threshold corresponds to the fully charged state of the battery; the vector control method of the permanent magnet synchronous motor is used to realize the control of the pe...

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Abstract

The invention provides a balance car control method, apparatus and system. The control method comprises the steps of obtaining a voltage value of a battery of the balance car; when it is judged that the voltage value is greater than or equal to a set safety threshold value and less than the value of a maximum charging voltage to the battery, setting a first set value as an exciting current instruction value required by a permanent magnet synchronous motor vector control method, so as to control the permanent magnet synchronous motor to reduce feedback energy generated by braking, wherein the set safety threshold value is corresponding to a fully charged state of the battery; and the permanent magnet synchronous motor vector control method is used for realizing control on the permanent magnet synchronous motor. By adoption of the control method, the feedback energy is reduced by setting the proper exciting current instruction value, so that the problem that the voltage rise of the battery is too high caused by energy feedback due to braking can be relieved, thereby improving user experience.

Description

technical field [0001] The invention belongs to the technical field of intelligent equipment, and in particular relates to a balance car control method, device and system. Background technique [0002] The self-balancing vehicle is gradually becoming the choice of transportation for people to travel the "last mile". Its portability, environmental protection, time-saving and labor-saving features have gradually won the favor of more and more people. The self-balancing scooter mainly uses batteries for power supply. When the charging voltage exceeds the maximum charging voltage that the battery can withstand, the battery will be damaged or even cause an accident of battery explosion. Therefore, it is extremely important not to overcharge the battery during use. Generally, the battery BMS (BATTERY MANAGEMENT SYSTEM, battery management system) will alarm or automatically cut off the power supply when the voltage is close to the maximum charging voltage. In addition, many charger...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/22H02J7/16
CPCH02J7/163
Inventor 盛爽
Owner 广东高标智能科技股份有限公司