A new energy vehicle battery fault detection and monitoring system based on the Internet of Things

Abstract

The present invention discloses a new energy vehicle battery fault detection and monitoring system based on the Internet of Things, including a vehicle chassis, a battery box and a detection box are installed on the vehicle chassis by bolts, a horizontal partition is provided inside the battery box, which is used to separate the upper and lower cavities of the battery box; a first circuit board is provided in the upper cavity, and a vertical partition is used in the lower cavity to separate the lower cavity into a left cavity and a right cavity. In this new energy vehicle battery fault detection and monitoring system based on the Internet of Things, when the battery voltage or temperature data collected by the temperature sampling module, the voltage sampling module and the gas sampling module are abnormal, the MCU module converts the information collected by the GPS module and transmits the conversion result to the background through the Internet of Things for data reporting, locks the faulty vehicle through the background, and performs rescue in advance; combined with the setting of the Internet of Things, the battery information of each vehicle is uploaded to the background, and the vehicle with the detected fault can be monitored intensively in the background.

Description

Technical Field

[0001] The present invention and the technical field of new energy vehicles specifically relates to a new energy vehicle battery fault detection and monitoring system based on the Internet of Things. Background Art

[0002] Although the battery accounts for a small proportion of the cost of new energy vehicles, it plays a vital role in the entire vehicle. As the power source of new energy vehicles, it supplies power to electrical equipment when the generator is not running. The electric energy of the entire vehicle comes from the generator and lead-acid batteries. When driving, the generator charges the lead-acid battery, and when parked, the electric energy comes entirely from the lead-acid battery. The battery management system of new energy vehicles serves as a link between the battery and the power system. It is used to supply power to the power system, prevent overcharging and over-discharging of the battery, extend the battery life, monitor the battery status, etc.

[0003] The battery state of charge (SOC) represents the remaining battery power and is one of the important parameters in the battery use process. Monitoring the SOC can optimize the battery's ability to use and provide guidance for battery maintenance and care. However, when existing car batteries fail, no effective measures are taken to combine them with the Internet of Vehicles to achieve the purpose of intelligent control. Summary of the invention

[0004] The purpose of the present invention is to provide a new energy vehicle battery fault detection and monitoring system based on the Internet of Things, which has the advantage of combining the setting of the Internet of Things to upload the battery information of each vehicle to the background, and the vehicle with detected fault can be monitored in the background, thus solving the problems in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A new energy vehicle battery fault detection and monitoring system based on the Internet of Things, comprising a vehicle chassis, a battery box and a detection box are mounted on the vehicle chassis by bolts, and a horizontal partition is provided inside the battery box to separate the upper and lower cavities of the battery box;

[0006] A first circuit board is arranged in the upper cavity, and a vertical partition is provided in the lower cavity to separate the lower cavity into a left cavity and a right cavity, wherein a battery pack and a backup battery pack are respectively placed in the left cavity and the right cavity, and cables connected to the battery pack and the backup battery pack pass through the partition and are connected to the first circuit board;

[0007] The left chamber and the right chamber are each equipped with a set of fire extinguishing and cooling devices;

[0008] A second circuit board is arranged in the detection box. The second circuit board is divided into two paths. One path is connected to the first circuit board and the other path is connected to the second circuit board. The second circuit board is connected to the fire extinguishing and cooling device.

[0009] Furthermore, a battery switching module, a battery protection module and a discharge load module are soldered on the first circuit board, and the battery pack and the backup battery pack are connected to the discharge load module through the battery switching module.

[0010] Furthermore, the battery switching module is used for switching power between the battery pack and the backup battery pack when the battery pack and the backup battery pack are powering the discharge load module, wherein the battery pack is the main power supply group. After detecting that the battery pack has a fault, the battery switching module switches the backup battery pack to power the discharge load module;

[0011] The battery protection module is used to cut off the fuse on the battery pack or the backup battery pack to stop power supply or charging when the battery pack or the backup battery pack fails, or both fail;

[0012] The discharge load module is a module used to drive the operation of new energy vehicles.

[0013] Furthermore, an MCU module, a temperature sampling module, a voltage sampling module, a GPS module, a communication module and a gas sampling module are soldered on the second circuit board, and the MCU module is respectively connected to the temperature sampling module, the voltage sampling module, the GPS module, the communication module and the gas sampling module, and the MCU module is also connected to the fire extinguishing and cooling device and the battery switching module, and the fire extinguishing and cooling device and the battery switching module are controlled to work through the MCU module.

[0014] Furthermore, the temperature sampling module, the voltage sampling module and the gas sampling module are all connected to the battery pack and the backup battery pack;

[0015] The temperature sampling module is used to measure the ambient temperature of the battery pack and the backup battery pack, and transmit the detected data to the MCU module in real time. After the battery pack and the backup battery pack exceed the set temperature threshold, the MCU module drives the fire extinguishing and cooling device to perform heat dissipation on the battery pack and the backup battery pack;

[0016] The voltage sampling module is a data acquisition module for measuring the voltage of the battery pack and the backup battery pack in real time during the charging or discharging process, and transmitting the detected data to the MCU module in real time;

[0017] The GPS module is used to cooperate with the high-precision radio navigation positioning system to send the geographical location, vehicle speed and accurate time information of the new energy vehicle to the communication module in real time;

[0018] When the battery voltage or temperature data collected by the temperature sampling module, the voltage sampling module and the gas sampling module are abnormal, the MCU module converts the information collected by the GPS module and performs signal level conversion, and then transmits the conversion result to the background through the Internet of Things for data reporting, locks the faulty vehicle through the background, and performs rescue in advance;

[0019] The gas sampling module is used to collect gas data in the battery pack and the backup battery pack, and determine whether the battery pack and the backup battery pack are burning. After collecting the burning gas, the MCU module drives the fire extinguishing and cooling device to extinguish the battery pack and the backup battery pack.

[0020] Furthermore, the fire extinguishing and cooling device includes a fire extinguishing component and a cooling component, and both the fire extinguishing component and the cooling component are facing the battery pack and the backup battery pack.

[0021] Furthermore, the fire extinguishing assembly includes a water-based fire extinguishing agent tank, a pump body, a pipe body and a nozzle. The water-based fire extinguishing agent tank and the pump body are installed on the automobile chassis. The pump body is respectively connected to the water-based fire extinguishing agent tank and the battery box through the pipe body. The nozzle connected to the pipe body extinguishes the battery pack and the backup battery pack.

[0022] Furthermore, the cooling component includes a cooling fan, a cooling motor and a heat dissipation net. The cooling motor is installed in the battery box, the cooling fan is connected to the cooling motor, and the heat dissipation net is arranged on the battery box opening symmetrical to the cooling fan.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention relates to a battery fault detection and monitoring system for new energy vehicles based on the Internet of Things. The temperature sampling module is used to measure the ambient temperature of the battery pack and the spare battery pack, and transmit the detected data to the MCU module in real time. After the battery pack and the spare battery pack are detected to exceed the set temperature threshold, the MCU module drives the fire extinguishing and cooling device to perform heat dissipation treatment on the battery pack and the spare battery pack. When the battery voltage or temperature data collected by the temperature sampling module, the voltage sampling module and the gas sampling module are abnormal, the MCU module converts the signal level using the information collected by the GPS module, and then transmits the conversion result to the background through the Internet of Things for data reporting. The faulty vehicle is locked through the background, and rescue is carried out in advance. Combined with the setting of the Internet of Things, the battery information of each vehicle is uploaded to the background, and the vehicle with the detected fault can be monitored intensively in the background. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall stereogram of the present invention;

[0026] Figure 2 It is a three-dimensional diagram of the interior of the battery box of the present invention;

[0027] Figure 3 The internal structure diagram of the battery box of the present invention;

[0028] Figure 4 It is the internal structure diagram of the detection box of the present invention;

[0029] Figure 5 It is a connection module diagram of the present invention;

[0030] Figure 6 It is a structural diagram of the fire extinguishing and cooling device of the present invention.

[0031] In the figure: 1. Automobile chassis; 2. Battery box; 21. Partition; 22. First circuit board; 221. Battery switching module; 222. Battery protection module; 223. Discharge load module; 23. Partition; 24. Battery pack; 25. Backup battery pack; 3. Detection box; 31. Second circuit board; 311. MCU module; 312. Temperature sampling module; 313. Voltage sampling module; 314. GPS module; 315. Communication module; 316. Gas sampling module; 4. Fire extinguishing and cooling device; 41. Fire extinguishing component; 411. Water-based fire extinguishing agent box; 412. Pump body; 413. Pipe body; 414. Nozzle; 42. Cooling component; 421. Cooling fan; 422. Cooling motor; 423. Heat dissipation network. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 , a new energy vehicle battery fault detection and monitoring system based on the Internet of Things, comprising a vehicle chassis 1, a battery box 2 and a detection box 3 are mounted on the vehicle chassis 1 by bolts, which is convenient for subsequent installation and disassembly, and a horizontal partition 21 is arranged inside the battery box 2 to separate the upper and lower cavities of the battery box 2;

[0034] See also Figure 2-3 A first circuit board 22 is provided in the upper cavity, and a vertical partition 23 is used in the lower cavity to separate the lower cavity into a left cavity and a right cavity, wherein a battery pack 24 and a backup battery pack 25 are placed in the left cavity and the right cavity respectively, and the cables connected to the battery pack 24 and the backup battery pack 25 pass through the partition 21 and are connected to the first circuit board 22. The three cavities are provided to isolate the devices from each other, and the two battery packs 24 and the backup battery pack 25 will not interfere with each other, so as to avoid affecting the remaining ones after a problem occurs in one of the battery packs 24 and the backup battery pack 25;

[0035] The left chamber and the right chamber are each provided with a set of fire extinguishing and cooling devices 4, and the battery pack 24 and the backup battery pack 25 are cooled by the equipped fire extinguishing and cooling devices 4;

[0036] See also Figure 4 A second circuit board 31 is provided in the detection box 3 . The second circuit board 31 is divided into two paths. One path is connected to the first circuit board 22 , and the other path is connected to the second circuit board 31 . The second circuit board 31 is connected to the fire extinguishing and cooling device 4 .

[0037] See also Figure 5 A battery switching module 221 , a battery protection module 222 and a discharge load module 223 are soldered on the first circuit board 22 , and the battery pack 24 and the backup battery pack 25 are connected to the discharge load module 223 through the battery switching module 221 .

[0038] The battery switching module 221 is used for switching power between the battery pack 24 and the backup battery pack 25 when the battery pack 24 is the main power supply group. After detecting that the battery pack 24 has a fault, the battery switching module 221 switches the backup battery pack 25 to supply power to the discharge load module 223. Through the setting of the battery switching module 221, when the main power supply battery pack 24 fails, the backup battery pack 25 can provide backup power to avoid the vehicle from stopping at a high speed or dangerous section.

[0039] The battery protection module 222 is used to cut off the fuse on the battery pack 24 or the backup battery pack 25 to stop power supply or charging when the battery pack 24 or the backup battery pack 25 fails, or both fail;

[0040] The discharge load module 223 is a module used to drive the operation of the new energy vehicle.

[0041] An MCU module 311, a temperature sampling module 312, a voltage sampling module 313, a GPS module 314, a communication module 315 and a gas sampling module 316 are soldered on the second circuit board 31. The MCU module 311 is connected to the temperature sampling module 312, the voltage sampling module 313, the GPS module 314, the communication module 315 and the gas sampling module 316 respectively, and the MCU module 311 is also connected to the fire extinguishing and cooling device 4 and the battery switching module 221, and the fire extinguishing and cooling device 4 and the battery switching module 221 are controlled to work through the MCU module 311.

[0042] The temperature sampling module 312, the voltage sampling module 313 and the gas sampling module 316 are all connected to the battery pack 24 and the backup battery pack 25;

[0043] The temperature sampling module 312 is used to measure the ambient temperature of the battery pack 24 and the backup battery pack 25, and transmit the detected data to the MCU module 311 in real time. After the battery pack 24 and the backup battery pack 25 are detected to exceed the set temperature threshold, the MCU module 311 drives the fire extinguishing and cooling device 4 to perform heat dissipation treatment on the battery pack 24 and the backup battery pack 25;

[0044] The voltage sampling module 313 is a data acquisition module for measuring the voltage of the battery pack 24 and the backup battery pack 25 in real time during the charging or discharging process, and transmits the detected data to the MCU module 311 in real time;

[0045] The GPS module 314 is used to cooperate with the high-precision radio navigation positioning system to send the geographical location, vehicle speed and accurate time information of the new energy vehicle to the communication module 315 in real time;

[0046] When the battery voltage or temperature data collected by the temperature sampling module 312, the voltage sampling module 313 and the gas sampling module 316 are abnormal, the communication module 315, the MCU module 311 converts the information collected by the GPS module 314 into a signal level, and then transmits the conversion result to the background through the Internet of Things for data reporting, locks the faulty vehicle through the background, and performs rescue in advance;

[0047] The gas sampling module 316 is used to collect gas data in the battery pack 24 and the backup battery pack 25, and determine whether the battery pack 24 and the backup battery pack 25 are burning. After collecting the burning gas, the MCU module 311 drives the fire extinguishing and cooling device 4 to extinguish the battery pack 24 and the backup battery pack 25.

[0048] See also Figure 6 The fire extinguishing and cooling device 4 includes a fire extinguishing component 41 and a cooling component 42 , and both the fire extinguishing component 41 and the cooling component 42 are facing the battery pack 24 and the backup battery pack 25 .

[0049] The fire extinguishing assembly 41 includes a water-based fire extinguishing agent tank 411, a pump body 412, a pipe body 413 and a nozzle 414. The water-based fire extinguishing agent tank 411 and the pump body 412 are installed on the automobile chassis 1. The pump body 412 is respectively connected to the water-based fire extinguishing agent tank 411 and the battery box 2 through the pipe body 413. The nozzle 414 connected to the pipe body 413 extinguishes the battery pack 24 and the backup battery pack 25.

[0050] The cooling assembly 42 includes a cooling fan 421, a cooling motor 422 and a heat dissipation net 423. The cooling motor 422 is installed in the battery box 2, the cooling fan 421 is connected to the cooling motor 422, and the heat dissipation net 423 is arranged on the opening of the battery box 2 symmetrical to the cooling fan 421.

[0051] The pump body 412 and the cooling motor 422 are both controlled by the MCU module 311. They receive instructions from the MCU module 311 and choose cooling or fire extinguishing, so that they can quickly handle the situation and avoid the expansion of the incident. Combined with the setting of the Internet of Things, the battery information of each vehicle is uploaded to the background, and the vehicle with a fault can be monitored in the background, and cooperate with the rescue team to contact the vehicle while also evacuating the vehicle for rescue, reducing the risk of the accident.

[0052] In summary: In this new energy vehicle battery fault detection and monitoring system based on the Internet of Things, the temperature sampling module 312 is used to measure the ambient temperature of the battery pack 24 and the spare battery pack 25, and transmit the detected data to the MCU module 311 in real time. After detecting that the battery pack 24 and the spare battery pack 25 exceed the set temperature threshold, the MCU module 311 drives the fire extinguishing and cooling device 4 to perform heat dissipation treatment on the battery pack 24 and the spare battery pack 25. When the battery voltage or temperature data collected by the temperature sampling module 312, the voltage sampling module 313 and the gas sampling module 316 are abnormal, the MCU module 311 collects the information collected by the GPS module 314 and converts the signal level, and then transmits the conversion result to the background through the Internet of Things for data reporting, locks the faulty vehicle through the background, and performs rescue in advance; combined with the setting of the Internet of Things, the battery information of each vehicle is uploaded to the background, and the vehicle with detected fault can be monitored in the background, and cooperate with the rescue team to get in touch with the vehicle while also evacuating the vehicle for rescue, thereby reducing the risk of accidents.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery fault detection and monitoring system based on the Internet of Things, comprising a vehicle chassis (1), characterized in that: A battery box (2) and a detection box (3) are mounted on the vehicle chassis (1) by means of bolts. A horizontal partition (21) is provided inside the battery box (2) for separating the upper and lower cavities of the battery box (2). A first circuit board (22) is provided in the upper cavity. A vertical partition (23) is provided in the lower cavity to separate the lower cavity into a left cavity and a right cavity. A battery pack (24) and a spare battery pack (25) are respectively placed in the left cavity and the right cavity. Cables connected to the battery pack (24) and the spare battery pack (25) pass through the partition (21) and are connected to the first circuit board (22). A set of fire extinguishing and cooling devices (4) are respectively provided in the left cavity and the right cavity. A second circuit board (31) is provided in the detection box (3). The second circuit board (31) is divided into two paths. One path is connected to the first circuit board (22) and the other path is connected to the second circuit board (31). The second circuit board (31) is connected to the fire extinguishing and cooling devices (4). The fire extinguishing and cooling device (4) comprises a fire extinguishing component (41) and a cooling component (42), and the fire extinguishing component (41) and the cooling component (42) are both oriented toward the battery pack (24) and the backup battery pack (25); the fire extinguishing component (41) comprises a water-based fire extinguishing agent tank (411), a pump body (412), a pipe body (413) and a nozzle (414), and the water-based fire extinguishing agent tank (411) and the pump body (412) are mounted on the automobile chassis (1), and the pump body (412) is respectively connected to the water-based fire extinguishing agent tank through the pipe body (413). (411) and the battery box (2), the nozzle (414) connected to the tube body (413) extinguishes the fire of the battery pack (24) and the spare battery pack (25); the cooling component (42) comprises a cooling fan (421), a cooling motor (422) and a heat dissipation net (423), the cooling motor (422) is installed in the battery box (2), the cooling fan (421) is connected to the cooling motor (422), and the heat dissipation net (423) is arranged on an opening of the battery box (2) symmetrical to the cooling fan (421); An MCU module (311), a temperature sampling module (312), a voltage sampling module (313), a GPS module (314), a communication module (315), and a gas sampling module (316) are soldered onto the second circuit board (31); the MCU module (311) is connected to the temperature sampling module (312), the voltage sampling module (313), the GPS module (314), the communication module (315), and the gas sampling module (316), respectively; and the MCU module (311) is also connected to the fire extinguishing and cooling device (4) and the battery switching module (221); the fire extinguishing and cooling device is controlled by the MCU module (311). (4) and the battery switching module (221); the temperature sampling module (312), the voltage sampling module (313) and the gas sampling module (316) are all connected to the battery pack (24) and the backup battery pack (25); the temperature sampling module (312) is used to measure the ambient temperature of the battery pack (24) and the backup battery pack (25), and transmit the detected data to the MCU module (311) in real time. After detecting that the battery pack (24) and the backup battery pack (25) exceed a set temperature threshold, the MCU module (311) activates the fire extinguishing and cooling device (4) to extinguish the battery pack (24) and the backup battery pack (25). The voltage sampling module (313) is a data acquisition module for measuring the voltage of the battery pack (24) and the backup battery pack (25) in real time during the charging or discharging process, and transmits the detected data to the MCU module (311) in real time; the GPS module (314) is used to cooperate with the high-precision radio navigation positioning system to send the geographical location, vehicle speed and accurate time information of the new energy vehicle to the communication module (315) in real time; the communication module (315) collects the battery voltage or When the temperature data is abnormal, the MCU module (311) converts the signal level of the information collected by the GPS module (314), and then transmits the conversion result to the background through the Internet of Things for data reporting, and locks the faulty vehicle through the background, and performs rescue in advance; the gas sampling module (316) is used to collect gas data in the battery pack (24) and the spare battery pack (25), and judge whether the battery pack (24) and the spare battery pack (25) are burning. After collecting the burning gas, the MCU module (311) drives the fire extinguishing and cooling device (4) to extinguish the battery pack (24) and the spare battery pack (25).

2. According to the Internet of Things-based new energy vehicle battery fault detection and monitoring system according to claim 1, it is characterized in that: A battery switching module (221), a battery protection module (222) and a discharge load module (223) are soldered onto the first circuit board (22); the battery pack (24) and the backup battery pack (25) are connected to the discharge load module (223) via the battery switching module (221).

3. According to the Internet of Things-based new energy vehicle battery fault detection and monitoring system according to claim 2, it is characterized in that: The battery switching module (221) is used for switching electric energy between the battery group (24) and the backup battery group (25) when the battery group (24) and the backup battery group (25) supply power to the discharge load module (223), wherein the battery group (24) is the main power supply group, and after detecting that a fault occurs in the battery group (24), the battery switching module (221) switches the backup battery group (25) to supply power to the discharge load module (223); The battery protection module (222) is used to disconnect the fuse on the battery pack (24) or the backup battery pack (25) and stop power supply or charging when a failure occurs in the battery pack (24) or the backup battery pack (25), or when both of them fail; The discharge load module (223) is a module used to drive the operation of a new energy vehicle.

Images