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Method and system for improving driving safety of electric motorcycle

A technology for electric motorcycles and motorcycles, used in bicycle accessories, transportation and packaging, etc., can solve problems such as driving safety hazards, and achieve the effect of improving safety, easy implementation and low increase.

Inactive Publication Date: 2021-04-09
SHENZHEN BOYONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher the speed, the greater the braking torque, or even lock the wheels, which will cause serious harm to driving safety

Method used

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  • Method and system for improving driving safety of electric motorcycle

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in the preferred embodiment are only for convenience of description, and are not used to limit the scope of the present invention. The scope of implementation and the change or adjustment of its relative relationship shall also be regarded as the scope of implementation of the present invention without substantive changes in technical content.

[0026] See figure 1 , a method for improving the driving safety of an electric motorcycle designed in a preferred embodiment of the present invention, which mainly includes:

[0027] Dual MCU, one master MCU, one slave MCU, real-time data communication between the two MCUs;

[0028] The contactor K1 set on the phase line of the motor, the EN2 signal is drawn from one of the signal pins of the MCU to connect to the contactor K1, a...

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Abstract

The invention discloses a method and system for improving the driving safety of an electric motorcycle. The method comprises the steps that double MCUs, a master MCU and a slave MCU are included, and the two MCUs communicate with each other for real-time data and monitor the running state mutually; a contactor is arranged on a motor phase line, a signal is led out from the MCU and connected to the contactor, and the contactor is controlled to be connected or disconnected; and when the motorcycle runs at a high speed, once the master MCU breaks down, the slave MCU can immediately control the contactor to be disconnected, and thus the phase line of the motor is disconnected. According to the method and system, the two MCUs are included, the slave MCU is added on the basis of the main MCU for cooperation, the slave MCU is mainly used for independently monitoring the running state of the main MCU and the running state of the whole vehicle, and once a fault is detected, different processing modes are made according to the severity level of the fault; during high-speed operation, once a fault endangering driving safety occurs, phase line connection between the contactor and the motor can be immediately disconnected, a phase current loop is thoroughly disconnected, and braking torque cannot be generated.

Description

technical field [0001] The invention relates to a method and technology for improving the driving safety of an electric motorcycle. Background technique [0002] Electric motorcycle is a kind of electric vehicle. It uses battery to drive the motor. The core components include battery, motor, motor controller and reducer. The motor controller mainly includes: MCU, driver and motor power drive circuit. [0003] In recent years, more and more permanent magnet synchronous motors installed in the middle are used. The maximum operating speed of this type of driving motor is more than 6000rpm, and some even reach 12000rpm. With a reducer, it can provide efficient and high-torque power for the system , loved by users. [0004] However, the permanent magnet synchronous motor will generate a back electromotive force when it rotates. When the motor enters the field weakening zone, the peak value of the back electromotive force will be higher than the battery voltage. If there is a se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62J45/00
CPCB62J45/00
Inventor 池从伟朱子宇陈桂安
Owner SHENZHEN BOYONG TECH
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