A control method and system for a dual-motor electric scooter

A technology of electric scooter and control method, which is applied to motor vehicles, electric vehicles, control drives, etc., and can solve problems such as insufficient battery life, low control accuracy, and energy loss

Active Publication Date: 2021-01-01
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most electric scooters have insufficient battery life, low control accuracy, and serious energy loss. Therefore, how to design a new dual-motor electric scooter control method and its system is of great practical engineering value.

Method used

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  • A control method and system for a dual-motor electric scooter
  • A control method and system for a dual-motor electric scooter
  • A control method and system for a dual-motor electric scooter

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Embodiment Construction

[0068] see figure 1 , The present invention provides an electric scooter control system, including a control part, a sensor part, a power supply part, a main circuit part, and a host computer part.

[0069] Control part: ST's STM32F103ZET6 is used as the main control chip. This chip has two advanced timers and a storage capacity of 512K. There are 5 kinds of IO ports and multiple serial communication interfaces, which meet the design requirements very well.

[0070] Sensor part: it is a gyroscope, which is used to collect the angle of body deviation.

[0071] Power supply part: charging module and battery; mainly used for battery charging and power supply of various parts of the system.

[0072] Main circuit part: power driver and two Hall brushless motors.

[0073] Host computer part: mobile phone and PC terminal.

[0074] The mobile phone mainly transmits information and transmits instructions through wireless Bluetooth; the PC terminal communicates through the serial por...

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Abstract

The invention discloses a control method and system for a double-motor electric scooter, which uses a gyroscope to measure the running state of the electric scooter, and realizes reasonable distribution of torque and precise control for different situations. When turning, the motor is allowed to realize the adaptive differential turning performance of the electric scooter under different load conditions, which reduces energy loss and improves the endurance of the system. As a result, the generated speed compensation is given to the torque adjustment distributor, that is, the compensation value of the angle value that has the greatest influence on the system is directly given to the torque adjustment distributor, which speeds up the adjustment of the system. The compensation values ​​of the two angle values ​​that have little influence on the system are given to the PI regulator at a given speed to slowly adjust the system. After the torque is adjusted reasonably by the distributor, it can be adaptively adjusted according to various road conditions.

Description

technical field [0001] The invention belongs to the technical field of electric scooter control, and in particular relates to a control method and system for a dual-motor electric scooter. Background technique [0002] Due to the rapid development of the country's economy, the number of private cars is increasing, which can easily lead to traffic paralysis; in addition, some relatively narrow places are not suitable for car traffic, and cars emit a lot of exhaust gas, polluting the air. So it is necessary to design a power control system device with small size, adjustable speed and environmental protection. The device can be fixed on any device with a relatively small volume (such as a traditional skateboard, bicycle, etc.), and the traditional means of transportation can be easily changed. Compared with traditional ones, the walking-replacing tool added with the control device is more labor-saving, faster and more convenient to carry. The introduction of this control syst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60L15/28B60L15/32
CPCB60L15/20B60L15/28B60L15/32B60L2200/12B60L2220/42B60L2240/22B60L2240/32B60L2240/421B60L2240/423B60L2240/429Y02T10/72
Inventor 林海王小冬
Owner CHANGAN UNIV
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