A control method, device and system for an electric vehicle

A technology for electric vehicles and control methods, applied in vehicle components, transportation and packaging, rider driving, etc., can solve problems such as motor heating, and achieve the effects of improving service life, good practicability, and avoiding serious heating

A technology for electric vehicles and control methods, applied in vehicle components, transportation and packaging, rider driving, etc., can solve problems such as motor heating, and achieve the effects of improving service life, good practicability, and avoiding serious heating

CN109774846BActive Publication Date: 2020-08-14山东五星车辆股份有限公司
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  • A control method, device and system for an electric vehicle
  • A control method, device and system for an electric vehicle
  • A control method, device and system for an electric vehicle

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Embodiment Construction

[0049] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is only a part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in...

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Abstract

The invention provides a method, device and system for controlling an electric vehicle. The method comprises the steps of acquiring rotation angle information of a rotating handle included in the electric vehicle and rotation speed information of a motor included in the electric vehicle when it is determined that the electric vehicle runs in a non-low-gear mode; determining whether or not input current of the motor reaches a first preset current threshold value according to the rotation angle information of the rotating handle; if yes, determining whether the rotation speed information of themotor reaches a preset rotation speed threshold value; if yes, controlling the motor to stop rotating. According to the provided method, device and system for controlling the electric vehicle, a serious heat generation problem, caused by selecting an existing non-low-gear mode for driving, of the motor is solved, the service life of the motor is prolonged, and the practicability is higher.

Description

technical field [0001] The present application relates to the technical field of electric vehicle control, in particular, to a control method, device and system for electric vehicles. Background technique [0002] With the development of electric vehicle control technology, the climbing ability of electric vehicles has been significantly improved. Taking electric tricycles as an example, the current climbing control schemes of electric tricycles mostly adopt constant current control, that is, when the controller bus reaches the maximum current, the motor current remains unchanged. Electric tricycles have two gears, non-low gear and low gear. The non-low gear mode is used to drive faster, but the vehicle’s running torque is smaller; while the low gear mode is used to drive slower, but the vehicle’s running torque larger. [0003] Because the speed of the non-low gear mode is faster, in order to save time, users generally choose the non-low gear mode to drive. However, when...

Claims

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Application Information

Patent Timeline
14 Aug 2020
Publication
CN109774846B
IPC
B62M6/45
Inventors
孙砚丰; 王孝磊