A new energy automobile battery anti-theft technology

Abstract

The application discloses a new energy automobile battery anti-theft technology, comprising the following steps: sending the battery pack in or out of position state to the vehicle controller (VCU) through the battery management system (BMS); determining whether the vehicle controller (VCU) receives the battery stolen information or the vehicle controller (VCU) sends the battery in position determination request information, and if no BMS battery reply is received after 5 minutes, it is determined that the battery pack is stolen, and if not, it is determined that the battery pack is in position; the battery pack stolen information is returned to the network terminal (TBOX) through the CAN network, and an instruction is immediately sent to the vehicle anti-theft alarm device; the vehicle anti-theft alarm component sends a buzzing alarm and a car double flash continuous flicker. The application can immediately push the stolen information to the owner and send an alarm reminder to the vehicle after determining that the battery pack of the vehicle is stolen, so that the battery pack theft can be effectively prevented, the property safety of the owner can be maintained, and the normal driving of the vehicle can be ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of new energy battery anti-theft, and particularly relates to a new energy automobile battery anti-theft technology. BACKGROUND

[0002] The new energy automobile refers to an automobile adopting unconventional vehicle fuel as a power source (or using conventional vehicle fuel, adopting a new type of vehicle power device), and combining advanced technologies of vehicle power control and driving to form an automobile with advanced technical principles and new technologies and structures.

[0003] The battery pack is a core component of the power system of the new energy automobile, and can provide persistent power for the vehicle, so as to ensure the normal driving of the vehicle. Since a large number of high-performance batteries are used in the battery pack of the new energy automobile, the cost is also correspondingly increased. According to statistics, the cost of the battery pack accounts for more than 30% of the total cost of the new energy automobile. As a high-value and high-cost component of the new energy automobile, the battery pack has an important influence on the performance, endurance and sales price of the vehicle.

[0004] However, the existing battery pack theft often occurs, which not only causes direct economic losses to the vehicle owner, but also affects the driving function and brings many inconveniences to the vehicle owner. SUMMARY

[0005] The application provides a new energy automobile battery anti-theft technology, which solves the problems in the above background technology.

[0006] In order to achieve the above purpose, the technical scheme adopted by the application is as follows: a new energy automobile battery anti-theft technology, comprising the following steps:

[0007] Step S10, judging whether the network terminal (TBOX) receives a battery anti-theft detection start instruction, if yes, shifting to step S20, if not, repeating step S10;

[0008] Step S20, the network terminal (TBOX) wakes up the vehicle controller (VCU) through network management;

[0009] Step S30, judging whether the vehicle controller (VCU) is woken up, if yes, shifting to step S40, if not, shifting to step S20;

[0010] Step S40, the vehicle controller (VCU) wakes up the battery management system (BMS), and replies to the network terminal (TBOX) that the request of receiving the start battery anti-theft instruction is received;

[0011] Step S50, determine whether the battery management system (BMS) is woken up, if yes, transfer to step S60, if not, transfer to step S40;

[0012] Step S60, after the vehicle controller (VCU) and the battery management system (BMS) are woken up, the vehicle controller (VCU) sends a battery pack in place state determination request signal to the battery management system (BMS) every 10s through the CAN network;

[0013] Step S70, send the battery pack in or out of place state to the vehicle controller (VCU) through the battery management system (BMS);

[0014] Step S80, determine whether the vehicle controller (VCU) receives the battery stolen information or the vehicle controller (VCU) sends the battery in place determination request information, and if no reply is received from the BMS within 5 minutes, it is determined that the battery pack is stolen, and step S90 is transferred, if not, it is determined that it is in place, and returns to step S60;

[0015] Step S90, return the battery pack stolen information to the network terminal (TBOX) through the CAN network, and immediately send a command to the vehicle anti-theft alarm device, and the vehicle anti-theft alarm component issues a buzzing alarm and a car double flash continuous flash.

[0016] Preferably, the step S10 is further provided with the following steps:

[0017] Step S01, after the vehicle is parked, the vehicle owner manually starts the battery anti-theft function on the vehicle APP;

[0018] Step S02, the battery anti-theft request started by the vehicle owner is sent to the intelligent network terminal (TBOX) of the vehicle through the communication base station.

[0019] Preferably, the step S70 includes the following steps;

[0020] Step S701, after receiving the battery in place state determination request of the vehicle controller (VCU), the battery management system (BMS) comprehensively analyzes the communication data between the battery management system (BMS) and the battery, the state of the battery pack buckle micro switch, and the high voltage interlock state, and replies the battery pack in place state to the vehicle controller (VCU) every 10s through the CAN network;

[0021] Step S702, when the battery pack information is lost and the state of the battery pack fixed buckle micro switch changes and a high voltage interlock fault occurs and lasts for 1 minute, the battery management system (BMS) determines that the battery pack is stolen, at this time, the battery pack out of place state is replied to the vehicle controller (VCU).

[0022] Preferably, the step S90 further includes the following steps;

[0023] Step S91, the network terminal (TBOX) feeds back the battery pack loss information to the owner through the communication base station, prompts the owner that the battery pack is stolen, and reminds the owner to check the vehicle immediately.

[0024] The beneficial effects of the above technical solutions are:

[0025] The present application can effectively prevent the battery pack from being stolen, maintain the property safety of the owner, and ensure the normal driving of the automobile. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall flowchart of the present application;

[0027] Figure 2 is the flowchart before step S10;

[0028] Figure 3 is the flowchart included in step S70;

[0029] Figure 4 is the flowchart after step S90. DETAILED DESCRIPTION

[0030] The specific embodiments of the present application will be further described in detail below by comparing the drawings and the description of the embodiments, the purpose of which is to help the skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present application, and to facilitate its implementation.

[0031] Specifically, as shown in Figure 1 A new energy automobile battery anti-theft technology, comprising the following steps:

[0032] Step S10, determining whether the network terminal (TBOX) receives a battery anti-theft detection start instruction, if yes, transferring to step S20, if not, repeating step S10;

[0033] Step S20, the network terminal (TBOX) wakes up the vehicle controller (VCU) through network management;

[0034] Step S30, determining whether the vehicle controller (VCU) is woken up, if yes, transferring to step S40, if not, transferring to step S20;

[0035] Step S40, the vehicle controller (VCU) wakes up the battery management system (BMS), and replies to the network terminal (TBOX) that the battery anti-theft instruction is received;

[0036] Step S50, determine whether the battery management system (BMS) is woken up, if yes, go to step S60, if not, go to step S40;

[0037] Step S60, after the vehicle controller (VCU) and the battery management system (BMS) are woken up, the vehicle controller (VCU) sends a battery pack in position state determination request signal to the battery management system (BMS) every 10s through the CAN network;

[0038] Step S70, the battery management system (BMS) sends the battery pack in or out of position state to the vehicle controller (VCU);

[0039] Step S80, determine whether the vehicle controller (VCU) receives the battery stolen information or the vehicle controller (VCU) sends the battery in position determination request information, if no reply is received from the BMS within 5 minutes, it is determined that the battery pack is stolen, and go to step S90, if not, it is determined that it is in position, and return to step S60;

[0040] Step S90, the battery pack stolen information is returned to the network terminal (TBOX) through the CAN network, and an instruction is immediately sent to the vehicle anti-theft alarm device, and the vehicle anti-theft alarm component issues a buzzing alarm and a car double flash continuous flash.

[0041] It should be noted that before step S40, the VCU monitors the vehicle state (monitoring signals including vehicle security state, key signal, hand brake signal, gear signal, brake pedal state), when the VCU detects that the vehicle state is in the security state, the key signal is in the OFF state, the hand brake is pulled up, the gear state is in the neutral position, and the brake pedal state is not pressed, the VCU wakes up the BMS.

[0042] Specifically, as shown in Figure 2 Before step S10, the following steps are further provided:

[0043] Step S01, after the vehicle is parked, the vehicle owner manually starts the battery anti-theft function on the vehicle APP;

[0044] Step S02, the battery anti-theft request started by the vehicle owner is sent to the intelligent network terminal (TBOX) of the vehicle through the communication base station.

[0045] Specifically, as shown in Figure 3 Step S70 includes the following steps:

[0046] Step S701, after receiving the battery in place state determination request of the vehicle controller (VCU), the battery management system (BMS) comprehensively judges the communication data between the battery management system (BMS) and the battery, the battery pack buckle micro switch state, the high voltage interlock state, and the battery pack in place state is returned to the vehicle controller (VCU) through the CAN network every 10s;

[0047] Step S702, when the battery pack information is lost and the buckle micro switch state of the fixed battery pack changes and the high voltage interlock fault occurs and lasts for 1 minute, the battery management system (BMS) determines that the battery pack is stolen, at this time the battery pack out of place state is returned to the vehicle controller (VCU).

[0048] It should be noted that, compared with the prior art, the communication alarm function is added in the embodiment;

[0049] Specifically, as shown in Figure 4 As shown in the step S90, the step S90 further includes the following steps;

[0050] Step S91, the network terminal (TBOX) feeds back the battery pack loss information to the owner through the communication base station, prompts the owner that the battery pack is stolen, reminds the owner to check the vehicle immediately.

[0051] The new energy automobile battery pack anti-theft technology provided by the method can immediately push the stolen information to the owner and issue an alarm reminder to the vehicle after determining that the battery pack of the vehicle is stolen, which can effectively prevent the battery pack from being stolen, maintain the property safety of the owner and ensure the normal driving of the vehicle.

[0052] The specific working mode is described by specific embodiments as follows:

[0053] Embodiment 1:

[0054] Judge whether the network terminal (TBOX) receives the battery anti-theft detection opening instruction, if yes, transfer to step S20, if not, repeat step S10; the network terminal (TBOX) manages to wake up the vehicle controller (VCU) through the network; judge whether the vehicle controller (VCU) is woken up, if yes, transfer to step S40, if not, transfer to step S20; the vehicle controller (VCU) wakes up the battery management system (BMS), and replies to the network terminal (TBOX) that the opening battery anti-theft instruction is received; judge whether the battery management system (BMS) is woken up, if yes, transfer to step S60, if not, transfer to step S40; after the vehicle controller (VCU) and the battery management system (BMS) are woken up, the vehicle controller (VCU) sends the battery pack in place state judgment request signal to the battery management system (BMS) through the CAN network every 10s; the battery management system (BMS) sends the battery pack in or out of place state to the vehicle controller (VCU); judge whether the vehicle controller (VCU) receives the battery stolen information or the vehicle controller (VCU) sends the battery in place judgment request information, if not received after 5 minutes, if yes, determine that the battery pack is stolen, and transfer to step S90, if not, determine that it is in place, return to step S60; the battery pack stolen information is returned to the network terminal (TBOX) through the CAN network, and an instruction is immediately sent to the vehicle anti-theft alarm device, and the vehicle anti-theft alarm component issues a buzzing alarm and a car double flash continuous flicker.

[0055] Embodiment 2:

[0056] After receiving the battery in place state judgment request of the vehicle controller (VCU), the battery management system (BMS) comprehensively analyzes the communication data between the battery management system (BMS) and the battery, the battery pack buckle micro switch state, the high voltage interlock state, and replies to the vehicle controller (VCU) through the CAN network every 10s; when the battery pack information is lost, the battery pack fixed buckle micro switch state changes, and the high voltage interlock fault occurs and lasts for 1 minute, the battery management system (BMS) determines that the battery pack is stolen, at this time, the battery pack out of place state is replied to the vehicle controller (VCU).

[0057] The above describes the present application in conjunction with the drawings, obviously, the specific implementation of the present application is not limited by the above manner, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the present application; or without improvement, the above concept and technical scheme of the present application are directly applied to other occasions, which are within the protection scope of the present application.

Claims

1. A new energy vehicle battery anti-theft technology, characterized in that, Includes the following steps: Step S10: Determine whether the network terminal (TBOX) has received a battery anti-theft detection activation command. If yes, proceed to step S20; otherwise, repeat step S10. Step S20: The connected terminal (TBOX) wakes up the vehicle controller (VCU) through network management; Step S30: Determine whether the vehicle controller (VCU) has been woken up. If yes, proceed to step S40; otherwise, proceed to step S20. In step S40, the vehicle control unit (VCU) wakes up the battery management system (BMS) and replies to the connected terminal (TBOX) that it has received a request to activate the battery anti-theft command; Step S50: Determine whether the battery management system (BMS) has been woken up. If yes, proceed to step S60; otherwise, proceed to step S40. In step S60, after the vehicle controller (VCU) and battery management system (BMS) are woken up, the vehicle controller (VCU) sends a battery pack presence status determination request signal to the battery management system (BMS) every 10 seconds via the CAN network. Step S70: The battery pack status is sent to the vehicle control unit (VCU) via the battery management system (BMS). Step S80: Determine whether the vehicle controller (VCU) has received a battery theft information or sent a battery presence determination request. If no battery response is received from the battery management system (BMS) within 5 minutes, it is determined that the battery pack has been stolen and the process proceeds to step S90. Otherwise, it is determined that the battery pack is present and the process returns to step S60. In step S90, the information about the stolen battery pack is transmitted back to the connected terminal (TBOX) via the CAN network, and a command is immediately sent to the vehicle anti-theft alarm device. The vehicle anti-theft alarm device then sounds a buzzer and the vehicle's hazard lights flash continuously.

2. The anti-theft technology for new energy vehicle batteries according to claim 1, characterized in that: The following steps are set before step S10: Step S01: After the vehicle is parked, the owner manually activates the battery anti-theft function on the vehicle's APP. In step S02, the battery anti-theft request activated by the vehicle owner is sent to the vehicle's intelligent network terminal (TBOX) via the communication base station.

3. The anti-theft technology for new energy vehicle batteries according to claim 1, characterized in that: Step S70 includes the following steps; Step S701: After receiving the battery presence status determination request from the vehicle controller (VCU), the battery management system (BMS) comprehensively analyzes the communication data between the battery management system (BMS) and the battery, the status of the battery pack latch micro switch, and the high voltage interlock status, and replies to the vehicle controller (VCU) with the battery pack presence status every 10 seconds via the CAN network. In step S702, when the battery pack information is lost and the state of the micro switch of the battery pack fixing buckle changes and a high-voltage interlock fault occurs and lasts for 1 minute, the battery management system (BMS) determines that the battery pack has been stolen. At this time, the battery pack is not in place status is sent back to the vehicle controller (VCU).

4. The anti-theft technology for new energy vehicle batteries according to claim 1, characterized in that: The following steps are included after step S90; In step S91, the connected terminal (TBOX) sends the battery pack loss information to the vehicle owner via the communication base station, alerting the owner that the battery pack has been stolen and reminding the owner to check the vehicle immediately.

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