Intelligent unlocking system of electric vehicle

Abstract

The utility model relates to the technical field of electric vehicle control, provides an unlocking system capable of automatically unlocking and electrifying when a remote controller is close to an electric vehicle and automatically powering off and fortifying when the remote controller leaves, and particularly relates to an intelligent unlocking system for the electric vehicle. The electric vehicle remote controller mainly comprises a remote controller, an electric vehicle and a PKE system circuit installed on the electric vehicle, the remote controller comprises a low-frequency signal emitter, and the PKE system circuit comprises a signal detection chip, an NPN transistor, a fly-wheel diode, an amplified signal output and a microcontroller. Through the arrangement of the PKE system circuit, the remote controller does not need to be taken out, the remote controller can be automatically unlocked and powered on when getting close to the vehicle, the remote controller can be automatically powered off and fortified when leaving the vehicle, the safety of the vehicle is improved, the remote controller does not need to be taken out frequently, the risk of losing the remote controller is reduced, and a user forgets to lock the remote controller when leaving the vehicle. And the vehicle can be prevented from being stolen when leaving the automatic power-off fortification function.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle control, and provides an unlocking system that automatically unlocks and powers on an electric vehicle when a remote control is brought close to the vehicle, and automatically powers off and defends the vehicle when the remote control is away, in particular to an intelligent unlocking system for electric vehicles. Background Art

[0002] Electric vehicles, also known as battery vehicles, are vehicles that use electricity as a power source and are driven by electric motors. With the acceleration of urbanization, consumers' acceptance of environmental protection, energy conservation and new technologies has increased, and the demand for electric vehicles has gradually increased. In addition, urban traffic congestion and parking difficulties have become increasingly prominent. Electric vehicles have become the preferred choice for urban transportation due to their small size and high flexibility. However, existing electric vehicles all use button remote controls or mechanical locking methods to lock the electric vehicle handlebars, and there are cases where people forget to lock the car after parking it.

[0003] In view of this, it is necessary to provide a new electric vehicle intelligent unlocking system to solve the problems existing in the above-mentioned prior art. Utility Model Content

[0004] The utility model aims to provide an unlocking system which automatically unlocks and powers on an electric vehicle when a remote controller is held close to the electric vehicle, and automatically powers off and defends the electric vehicle when the remote controller is held away from the electric vehicle.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric vehicle intelligent unlocking system, comprising a remote control, an electric vehicle, and a PKE system circuit installed on the electric vehicle, wherein the remote control includes a low-frequency signal transmitter for transmitting a signal when approaching the vehicle and cutting off the signal when moving away from the vehicle;

[0006] The PKE system circuit includes a signal detection chip, an NPN transistor, a freewheeling diode, an amplified signal output and a microcontroller;

[0007] The signal detection chip is used to detect the signal from the remote control;

[0008] The NPN transistor is used to amplify the signal from the remote control;

[0009] The freewheeling diode is used to stabilize the signal from the remote control;

[0010] The amplified signal output is used to output the signal to the control circuit of the electric vehicle;

[0011] The microcontroller is used to receive the signal output to the electric vehicle control circuit and control the power on or off of the electric vehicle circuit;

[0012] Among them, the remote control and PKE system circuit work together. When the remote control is close to the electric vehicle, the electric vehicle is automatically unlocked and powered on. When the remote control is away from the electric vehicle, the electric vehicle is automatically powered off and defended.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] This utility model improves the convenience of use by unlocking or locking the vehicle without taking out the remote control. The system can recognize specific remote control signals and can unlock the vehicle as long as the authorized remote control is within a certain range, thereby increasing the safety of the vehicle. Because the remote control does not need to be taken out frequently, the risk of losing the remote control is reduced. It can also enhance the technological and luxurious feel of the vehicle. If the user forgets to lock the vehicle when leaving, the automatic power-off defense function can prevent the vehicle from being stolen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a PKE automatic power-on circuit diagram of an electric vehicle intelligent unlocking system in this utility model;

[0016] Figure 2 This is a PKE automatic power-off circuit diagram of an electric vehicle intelligent unlocking system in the utility model;

[0017] Figure 3 The utility model discloses a PKE signal receiving and output circuit diagram of an intelligent unlocking system for an electric vehicle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1 to 3 , an electric vehicle intelligent unlocking system, including a remote control and an electric vehicle and a PKE system circuit installed on the electric vehicle, the remote control including a low-frequency signal transmitter for transmitting a signal when approaching the vehicle and cutting off the signal when moving away from the vehicle;

[0020] The PKE system circuit includes a signal detection chip, an NPN transistor, a freewheeling diode, an amplified signal output, and a microcontroller;

[0021] The signal detection chip is used to detect the signal from the remote control;

[0022] The NPN transistor is used to amplify the signal from the remote control;

[0023] The freewheeling diode is used to stabilize the signal from the remote control;

[0024] The amplified signal output is used to output the signal to the control circuit of the electric vehicle;

[0025] The microcontroller is used to receive the signal output to the electric vehicle control circuit and control the power on or off of the electric vehicle circuit;

[0026] Among them, the remote control and PKE system circuit work together. When the remote control is close to the electric vehicle, the electric vehicle is automatically unlocked and powered on. When the remote control is away from the electric vehicle, the electric vehicle is automatically powered off and defended.

[0027] Workflow:

[0028] In summary, the present invention discloses an intelligent unlocking system for electric vehicles. When the remote control approaches the vehicle, the low-frequency signal transmitter in the remote control immediately transmits a signal. The signal in the remote control is detected by the signal detection chip, and then amplified by the NPN transistor. After being shaped and stabilized by the freewheeling diode, it is output to the amplified signal output. The microcontroller receives the automatic power-on signal and controls the unlocking of the vehicle through its pin. Conversely, when the remote control leaves the vehicle, the low-frequency signal transmitter in the remote control immediately cuts off the signal. The signal detection chip cannot detect the signal, and the microcontroller cannot receive the signal. It automatically cuts off the power and controls the vehicle arming through its pin.

[0029] Specifically, when the remote control approaches the vehicle, the signal in the remote control is detected by U5 and U6, then amplified by transistors Q11, Q12, Q13 and Q14, shaped and stabilized by diodes D2, D3, D4 and D5, and output to OUTA and OUTB. The microcontroller U3 receives these signals, processes them, and controls the unlocking and starting of the vehicle through its pins.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle intelligent unlocking system, characterized in that: The invention comprises a remote controller, an electric vehicle and a PKE system circuit installed on the electric vehicle, wherein the remote controller comprises a low-frequency signal transmitter for transmitting a signal when approaching the vehicle and cutting off the signal when moving away from the vehicle; The PKE system circuit includes a signal detection chip, an NPN transistor, a freewheeling diode, an amplified signal output and a microcontroller; The signal detection chip is used to detect the signal from the remote control; The NPN transistor is used to amplify the signal from the remote control; The freewheeling diode is used to stabilize the signal from the remote control; The amplified signal output is used to output the signal to the control circuit of the electric vehicle; The microcontroller is used to receive the signal output to the electric vehicle control circuit and control the power on or off of the electric vehicle circuit; Among them, the remote control and PKE system circuit work together. When the remote control is close to the electric vehicle, the electric vehicle is automatically unlocked and powered on. When the remote control is away from the electric vehicle, the electric vehicle is automatically powered off and defended.

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