Motor rotor locking-based anti-theft device for electric motor car and anti-theft method for anti-theft device

A technology of anti-theft device and motor rotor, which is applied in the direction of the stopped device, can solve the problems of high misjudgment rate and high cost, and achieve the effect of good effect, low cost, saving and waiting for the rotor speed to drop

Inactive Publication Date: 2016-05-04
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of traditional electric vehicle anti-theft device and its anti-theft method, such as high cost and high misjudgment rate, and provide a new electric vehicle anti-theft device and its anti-theft method based on motor rotor locking

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  • Motor rotor locking-based anti-theft device for electric motor car and anti-theft method for anti-theft device
  • Motor rotor locking-based anti-theft device for electric motor car and anti-theft method for anti-theft device

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Embodiment Construction

[0027] An electric vehicle anti-theft device based on motor rotor locking and its anti-theft method according to the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] like figure 1 As shown, it is a structural diagram of an electric vehicle anti-theft device based on motor rotor locking in this embodiment. The electric vehicle anti-theft device is installed based on the structure of the existing electric vehicle, and the electric vehicle includes a frame body and front wheels, rear wheels, DC power supply 1, and three-phase bridge inverter 2 installed on the frame body And the brushless DC motor 3 installed at the rear wheel position, the brushless DC motor 3 is powered by the DC power supply 1, and the DC power supply 1 is the storage battery of the so-called electric vehicle. Therefore, the electric vehicle anti-theft device of this embodiment is mainly formed by connecting the current sensor 4 and the contro...

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Abstract

The invention discloses a motor rotor locking-based anti-theft device for an electric motor car and an anti-theft method for the anti-theft device. The anti-theft device for the electric motor car mainly comprises a current sensor and a controller, wherein an input end of the current sensor is connected to one phase of winding of three-phase windings of a stator of a brushless direct current motor for the electric motor car; an output end of the current sensor is connected to the input end of the controller to form a current closed-loop system; the output end of the controller is connected to a control input end of a three-phase bridge-type inverter of the electric motor car; and the output end of the controller outputs a PWM signal. According to the anti-theft method, with an actual current value measured by the current sensor as a feedback value, output of the three-phase bridge-type inverter is controlled through the controller; and a rotor is positioned to the corresponding phase of winding of the stator to lock the electric motor car, so that the anti-theft target is achieved.

Description

technical field [0001] The invention belongs to the field of electric vehicle anti-theft technology, and in particular relates to an electric vehicle anti-theft device based on motor rotor locking and an anti-theft method thereof. Background technique [0002] With the development of society and the continuous increase of fuel vehicles, the shortage of natural resources such as petroleum fuels and the global warming caused by fuel emissions have become increasingly prominent. Therefore, in this context, hybrid or pure power vehicles have gradually entered people's lives, and electric vehicles have emerged as the times require. Electric vehicles are deeply loved by consumers because of their environmental protection, fast and convenient features. In recent years, the electric vehicle market has developed rapidly. Up to now, the number of domestic electric vehicles has exceeded 60 million. Advanced electric vehicle anti-theft technology is a prerequisite for ensuring the safe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/24
CPCH02P6/24
Inventor 张懿夏俭辉魏海峰韦汉培缪维娜陈椒娇
Owner JIANGSU UNIV OF SCI & TECH
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