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Voltage type speed measuring method and measuring device for electric bicycle

An electric bicycle, voltage type technology, applied in the direction of the device using the electric/magnetic method, can solve the problems of reducing the reliability of the speed measurement system, and achieve the effect of improving the reliability

Active Publication Date: 2016-12-21
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current achievements include: the patent "Bicycle Speed ​​Measuring System" with the authorized announcement number CN102087297B proposes a bicycle speed measurement device, however, the device needs photoelectric modules to assist in completing the speed measurement process, which reduces the reliability of the speed measurement system

Method used

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  • Voltage type speed measuring method and measuring device for electric bicycle
  • Voltage type speed measuring method and measuring device for electric bicycle
  • Voltage type speed measuring method and measuring device for electric bicycle

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] like figure 1 Shown, the present invention comprises the following steps:

[0018] The first step is to collect the winding voltage between the two phases of the electric bicycle drive motor , go to step two. ;

[0019] The second step is to build an observer

[0020]

[0021]

[0022] in, and are observer state variable 1 and state variable 2 respectively; is the winding voltage between the two phases of the electric bicycle drive motor; is the parameter observed by the observer; It is the control parameter 1 (value range is 0~100000); It is the control parameter 2 (value range is 0~100000); It is control parameter 3 (value range is 0~100000); To control parameter 4 (the value range is 0~100000), go to the third step.

[0023] The third step is to calculate the speed of the electric bicycle ,in, is the bicycle spee...

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Abstract

The invention relates to a voltage type speed measuring method and measuring device for an electric bicycle. The measuring device includes a voltage sensor, a signal amplifier, a filter, a speed estimator and a serial output module; the voltage sensor collects the voltage of a winding between two phases of an electric bicycle driving motor; the collected signals are processed through the signal amplifier and the filter; the processed signals are transmitted to the speed estimator; the speed estimator carries out speed estimation; and the speed of the electric bicycle is outputted through the serial output module. According to the voltage type speed measuring method and measuring device for the electric bicycle of the invention, the electric bicycle of which the driving motor is a permanent magnet synchronous motor is taken as a research object. With the measuring method and measuring device adopted, problems in speed measurement of the electric bicycle can be solved, and the reliability of a speed measuring system is improved.

Description

technical field [0001] The invention relates to a voltage-type vehicle speed measurement method and a measurement device for an electric bicycle. Background technique [0002] Electric bicycles have the characteristics of green travel, environmental protection and energy saving, easy operation and maintenance, and have broad market prospects in today's society. Due to the characteristics of simple control and high power density, the permanent magnet synchronous motor is widely used in the driving motor of electric bicycles. In the existing high-end and high-end electric bicycles, the speed measurement function of the electric bicycle has been added. The current achievements include: the patent "Bicycle Speed ​​Measuring System" with the authorized announcement number CN102087297B proposes a bicycle speed measurement device. However, the device needs a photoelectric module to assist in completing the speed measurement process, which reduces the reliability of the speed measu...

Claims

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Application Information

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IPC IPC(8): G01P3/44
CPCG01P3/44
Inventor 王立吴喜桥李雪萍宋孝辉
Owner HENAN NORMAL UNIV