Method and system used for controlling electric bicycle and based on pulse width modulation

An electric bicycle, pulse width modulation technology, applied in the direction of a single motor speed/torque control, electrical components, electronic commutators, etc., can solve the problems of unstable starting, low efficiency, high noise, and improve safety and Reliability, Guaranteed Uptime, Effectiveness of Simplified Adjustment Steps

Inactive Publication Date: 2013-03-13
北京腾逸科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Disadvantages of the prior art: insufficient efficiency, high noise and unstable starting etc.

Method used

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  • Method and system used for controlling electric bicycle and based on pulse width modulation
  • Method and system used for controlling electric bicycle and based on pulse width modulation
  • Method and system used for controlling electric bicycle and based on pulse width modulation

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "first", "second", "third", "fourth", "fifth" and "sixth" are used for descriptive purposes only, and not be understood as indicating or implying relative importance or implicitly indicating the quantity of the technical feature indicated. Thus, features defined as "first", "second", "third", "fourth", "fifth", "sixth" may expressly or implicitly include one or more of such features . In the description of the present invention, "plura...

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Abstract

The invention provides a method and system used for controlling an electric bicycle and based on pulse width modulation. The system comprises an initial module, a detecting module, an adjusting module and a protection module, wherein the initial module is used for initializing a timer embodiment and an input output port of the electric bicycle; the detecting module is used for detecting input current of a motor, configured voltage, a Hall state, Hall signals and a braking state of the electric bicycle; the adjusting module is used for adjusting pulse width modulation (PWM) duty ratio of the motor through a pulse width modulation method; and the protection module is used for protecting the system through the PWM duty ratio under abnormal states. The abnormal states comprise that current is too large, voltage is too low, and the motor is blocked or short-circuited. According to the system of the embodiment of the system, the PWM duty ratio is adjusted through the pulse width modulation method, and rotation speed of the motor is changed, and adjusting steps are simplified. Simultaneously, the motor is detected so as to prevent the motor or a battery from being damaged, normal operation of the system is guaranteed, and safety and reliability are improved.

Description

technical field [0001] The invention relates to the field of motor control, in particular to an electric bicycle control method and system based on pulse width modulation. Background technique [0002] With the promotion of energy saving and environmental protection, electric vehicles have a promising future as a new energy industry. As the core controller of electric vehicles, its control strategy directly affects the cruising range and service life of electric vehicles. [0003] The electric vehicle controller is the core control device used to control the start, operation, advance and retreat, speed, stop and other electronic devices of the electric vehicle motor. It is like the brain of the electric vehicle and an important part of the electric vehicle. Electric vehicles mainly include electric bicycles, electric two-wheel motorcycles, electric tricycles, electric three-wheel motorcycles, electric four-wheel vehicles, battery cars, etc. [0004] A conventional brushed m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/08H02P6/16H02H7/085
Inventor 杨睿尘
Owner 北京腾逸科技发展有限公司
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