CN115648941A - New forms of energy tractor battery safety monitoring system - Google Patents
New forms of energy tractor battery safety monitoring system Download PDFInfo
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- CN115648941A CN115648941A CN202211097005.1A CN202211097005A CN115648941A CN 115648941 A CN115648941 A CN 115648941A CN 202211097005 A CN202211097005 A CN 202211097005A CN 115648941 A CN115648941 A CN 115648941A
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Abstract
The invention discloses a new energy tractor battery safety monitoring system, which relates to the technical field of battery safety monitoring and comprises a temperature data collecting module, a current data collecting module, a battery swelling monitoring module, a charging time monitoring module and a safety early warning module; setting a temperature data collection module to collect temperature data of the battery shell in real time; setting a current data collection module to collect the instantaneous current of each battery pack in the battery in real time; a battery bulging monitoring module is arranged to acquire a battery shell bulging image in real time and acquire a fault severity degree according to the shell bulging image; setting a charging time monitoring module to count the charging time of the battery when the battery is charged; setting a temperature threshold, a current change threshold, a shell bulging amplitude threshold and a charging duration threshold by a safety early warning module, and judging whether the battery has corresponding danger according to each threshold; the problem of intelligent monitoring battery safety is solved.
Description
Technical Field
The invention belongs to the field of new energy tractors, relates to a battery safety monitoring technology, and particularly relates to a battery safety monitoring system of a new energy tractor.
Background
At present, power batteries are widely applied to the field of new energy tractors, due to reasons of cognition, technology and cost, monitoring and processing of serious safety faults of the batteries in the use of the power batteries are still insufficient, and electrolyte leakage, battery fire and other serious accidents of the batteries in the use process increasingly endanger the operation of vehicles and the life and property safety of people. The existing battery management system can not perform early warning and processing on major safety accidents in time, and often loses the function when the major safety faults occur to the battery;
therefore, a new energy tractor battery safety monitoring system is provided.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. The invention provides a new energy tractor battery safety monitoring system, which is provided with a temperature data collecting module for collecting the temperature data of a battery shell in real time; setting a current data collection module to collect the instantaneous current of each battery pack in the battery in real time; a battery swelling monitoring module is arranged to acquire a battery shell swelling image in real time and acquire the severity of a fault according to the shell swelling image; setting a charging time monitoring module to count the charging time of the battery when the battery is charged; setting a temperature threshold, a current change threshold, a shell bulging amplitude threshold and a charging duration threshold by a safety early warning module, and judging whether the battery has corresponding danger according to each threshold; the problem of intelligent monitoring battery safety is solved.
In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a new energy tractor battery safety monitoring system, including a temperature data collecting module, a current data collecting module, a battery swelling monitoring module, a charging duration monitoring module, and a safety pre-warning module; wherein, the modules are electrically connected with each other;
the temperature data collection module is mainly used for collecting temperature data of a battery mounted in the new energy tractor in real time;
the temperature data collection module comprises a plurality of temperature sensors and an electric signal sending device, wherein the temperature sensors are arranged outside the battery; the electric signal sending device is electrically connected with each temperature sensor; each temperature sensor detects the temperature of the battery shell in real time and sends the detected temperature to the electric signal sending device; the electric signal sending device compares the maximum value of all the temperatures and sends the maximum value of the temperatures to the safety early warning module; the mounting position of each temperature sensor is set according to the actual layout of the battery in the new energy tractor;
the current data collection module is mainly used for collecting instantaneous current generated in the battery in real time;
the current data collection module comprises a plurality of current sensors which are externally connected with the battery circuit; it can be understood that the battery in the new energy tractor generally consists of a plurality of battery packs; each battery pack comprises a plurality of batteries; in order to comprehensively consider the cost of the current sensor and the accurate positioning of the short-circuit current; the current data collection module numbers each battery pack; furthermore, each current sensor corresponds to one battery pack, and monitors output current generated in the battery pack in real time; each current sensor sends the detected output current value and the corresponding battery pack number to the safety early warning module in real time;
the battery swelling monitoring module is mainly used for monitoring the swelling condition of the battery shell in real time;
the battery swelling monitoring module comprises a plurality of image acquisition devices and image analysis devices, wherein the image acquisition devices are arranged outside the battery and can acquire images of the battery shell in real time; the image acquisition equipment is electrically connected with the image analysis equipment; the image acquisition equipment shoots an image of the battery shell in real time; sending the shot shell image to image analysis equipment; the image analysis equipment analyzes whether the battery shell has a bulging phenomenon by using an image analysis technology; and the severity of the ballooning phenomenon; the severity of the ballooning phenomenon can be expressed using the distance of the highest point of shell ballooning from the shell plane; when the battery bulging monitoring module monitors that a battery shell bulges, the battery bulging monitoring module sends the severity of the shell bulging to the safety early warning module;
the charging duration monitoring module is mainly used for monitoring the charging duration of the battery when the battery is charged;
the charging duration monitoring module comprises a timing device connected with a battery; the initial value of the timing device is 0, and when the timing device senses that the battery is in a connection state with the power line, the battery is judged to be in a charging state; the timing device starts timing; the timing device sends the charging time length to the safety early warning module in real time;
the safety early warning module is mainly used for reminding a driver to check the safety condition of the battery in time when the battery data is abnormal;
the safety early warning module judges that the battery data are abnormal by the following modes:
mode 1: the safety early warning module presets a temperature threshold T; the safety early warning module judges whether the highest temperature of the battery sent by the temperature data collecting module is greater than a temperature threshold T in real time; if the temperature is greater than the temperature threshold T, judging that the battery is in high-temperature danger; the safety early warning module reminds the battery of overhigh temperature in a voice broadcasting mode;
mode 2: the safety early warning module acquires the current change amplitude of each battery pack in real time; presetting a current change threshold I; the safety early warning module judges whether the current change amplitude is larger than a current change threshold I in real time; if the current variation threshold value is larger than the current variation threshold value I, the battery is judged to have short circuit danger; the safety early warning module reminds the corresponding battery pack of possible short circuit danger in a voice broadcasting mode;
mode 3: the safety early warning module is used for presetting a battery swelling amplitude threshold value G; the safety early warning module acquires the battery swelling severity degree sent by the battery swelling monitoring module; judging whether the battery bulging severity degree is larger than a bulging amplitude threshold value G or not; if the battery is larger than the bulging amplitude threshold value G, judging that the battery has a bulging risk; the safety early warning module reminds the corresponding battery pack of possibly having a battery bulging danger in a voice broadcasting mode;
mode 4: the safety early warning module presets a charging time threshold S; the safety early warning module acquires the charging time sent by the charging time monitoring module in real time and judges whether the charging time is greater than a charging time threshold value S; if the charging time length is greater than the charging time length threshold S, the battery is judged to have the risk of overcharging; the safety early warning module reminds the corresponding battery pack of being possibly in danger of overcharge in a voice broadcasting mode.
Compared with the prior art, the invention has the beneficial effects that:
the temperature data collection module is arranged to collect the temperature data of the battery shell in real time; setting a current data collection module to collect instantaneous current of each battery pack in the battery in real time; a battery bulging monitoring module is arranged to acquire a battery shell bulging image in real time and acquire a fault severity degree according to the shell bulging image; setting a charging time monitoring module to count the charging time of the battery when the battery is charged; setting a temperature threshold, a current change threshold, a shell bulging amplitude threshold and a charging duration threshold by a safety early warning module, and judging whether the battery has corresponding danger according to each threshold; the problem of intelligent monitoring battery safety is solved.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a new energy tractor battery safety monitoring system includes a temperature data collection module, a current data collection module, a battery swelling monitoring module, a charging duration monitoring module, and a safety pre-warning module; wherein, the modules are electrically connected with each other;
the temperature data collection module is mainly used for collecting temperature data of a battery mounted in the new energy tractor in real time;
in a preferred embodiment, the temperature data collection module comprises a plurality of temperature sensors arranged outside the battery and an electric signal sending device; the electric signal sending device is electrically connected with each temperature sensor; each temperature sensor detects the temperature of the battery shell in real time and sends the detected temperature to the electric signal sending device; the electric signal sending device compares the maximum value of all the temperatures and sends the maximum value of the temperatures to the safety early warning module; the mounting position of each temperature sensor is set according to the actual layout of a battery in the new energy tractor;
the current data collection module is mainly used for collecting instantaneous current generated in the battery in real time;
it can be understood that the current occurrence of battery combustion and even explosion events is mainly due to the occurrence of short-circuit conditions inside the battery; one important manifestation of line short circuit is that line current becomes large instantaneously; therefore, whether the short circuit is generated in the battery can be indirectly monitored by monitoring the change of the current in the battery;
in a preferred embodiment, the current data collection module comprises a plurality of current sensors externally connected with the battery circuit; it can be understood that the battery in the new energy tractor generally consists of a plurality of battery packs; each battery pack comprises a plurality of batteries; in order to comprehensively consider the cost of the current sensor and the accurate positioning of the short-circuit current; the current data collection module numbers each battery pack; furthermore, each current sensor corresponds to one battery pack, and monitors output current generated in the battery pack in real time; each current sensor sends the detected output current value and the corresponding battery pack number to a safety early warning module in real time;
the battery swelling monitoring module is mainly used for monitoring the swelling condition of the battery shell in real time;
it can be understood that the battery is easy to bulge after the charging current is too large, the pressure of the safety valve is too high, the battery is unqualified, the battery is aged or exposed to high temperature; when the battery is expanded, if the battery is continuously used, the battery is easy to explode; therefore, there is a need to monitor the bulging of the battery housing;
in a preferred embodiment, the battery swelling monitoring module comprises a plurality of image acquisition devices and image analysis devices, wherein the image acquisition devices are arranged outside the battery and can acquire images of the battery shell in real time; the image acquisition equipment is electrically connected with the image analysis equipment; the image acquisition equipment shoots an image of the battery shell in real time; sending the shot shell image to image analysis equipment; the image analysis equipment analyzes whether the battery shell has a bulging phenomenon by using an image analysis technology; and the severity of the ballooning phenomenon; the severity of the ballooning phenomenon can be expressed using the distance of the highest point of shell ballooning from the shell plane; when the battery bulging monitoring module monitors that a battery shell bulges, the battery bulging monitoring module sends the severity of the shell bulging to the safety early warning module;
the charging duration monitoring module is mainly used for monitoring the charging duration of the battery when the battery is charged;
it can be understood that the battery of the new energy tractor is not suitable for too long charging time; if the charging time is too long, the battery is easily in a high-voltage state for a long time, and the sulfation of a polar plate and the corrosion of a grid are caused, so that the service life of the battery is shortened, and the explosion risk of the battery is increased; therefore, the length of time that the battery is charged needs to be monitored;
in a preferred embodiment, the charging period monitoring module comprises a timing device connected with a battery; the initial value of the timing device is 0, and when the timing device senses that the battery is in a connection state with the power line, the battery is judged to be in a charging state; the timing device starts timing; the timing device sends the charging time length to the safety early warning module in real time;
the safety early warning module is mainly used for reminding a driver of checking the safety condition of the battery in time when the battery data is abnormal;
in a preferred embodiment, the determining, by the safety precaution module, that the battery data is abnormal includes the following steps:
mode 1: the safety early warning module presets a temperature threshold T; the safety early warning module judges whether the highest temperature of the battery sent by the temperature data collecting module is greater than a temperature threshold T in real time; if the temperature is greater than the temperature threshold T, judging that the battery has a high-temperature danger; the safety early warning module reminds the battery of overhigh temperature in a voice broadcasting mode;
mode 2: the safety early warning module acquires the current variation amplitude of each battery pack in real time; presetting a current change threshold I; the safety early warning module judges whether the current change amplitude is larger than a current change threshold I in real time; if the current variation threshold value is larger than the current variation threshold value I, the battery is judged to have short circuit danger; the safety early warning module reminds the corresponding battery pack of possible short circuit danger in a voice broadcasting mode;
mode 3: the safety early warning module is used for presetting a battery swelling amplitude threshold value G; the safety early warning module acquires the battery swelling severity degree sent by the battery swelling monitoring module; judging whether the battery bulging severity degree is larger than a bulging amplitude threshold value G or not; if the battery is larger than the bulging amplitude threshold value G, judging that the battery has a bulging risk; the safety early warning module reminds the corresponding battery pack of possibly having a battery bulging danger in a voice broadcasting mode;
mode 4: the safety early warning module presets a charging time threshold S; the safety early warning module acquires the charging time sent by the charging time monitoring module in real time and judges whether the charging time is greater than a charging time threshold S; if the charging time length is greater than the charging time length threshold S, the battery is judged to have the risk of overcharging; the safety early warning module reminds that the corresponding battery pack possibly has overcharge danger in a voice broadcasting mode.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (6)
1. A new energy tractor battery safety monitoring system is characterized by comprising a temperature data collecting module, a current data collecting module, a battery bulging monitoring module, a charging duration monitoring module and a safety early warning module; wherein, the modules are electrically connected with each other;
the temperature data collection module is used for collecting temperature data of a battery mounted in the new energy tractor in real time; the maximum temperature value is sent to a safety early warning module;
the current data collection module is used for collecting instantaneous current generated in the battery in real time; and the detected output current value and the corresponding battery pack number are sent to the safety early warning module in real time
The battery bulging monitoring module is used for monitoring the bulging condition of the battery shell in real time; when the battery bulging monitoring module monitors that a battery shell bulges, the battery bulging monitoring module sends the severity of the shell bulging to the safety early warning module;
the charging duration monitoring module is used for monitoring the charging duration of the battery when the battery is charged; the charging time monitoring module sends the charging time to the safety early warning module in real time;
the safety early warning module is used for reminding a driver to check the safety condition of the battery in time when the battery data is abnormal.
2. The system for monitoring the safety of the batteries of the new energy tractor according to claim 1, wherein the temperature data collection module comprises a plurality of temperature sensors and an electric signal sending device, wherein the temperature sensors are installed outside the batteries; the electric signal sending device is electrically connected with each temperature sensor; each temperature sensor detects the temperature of the battery shell in real time and sends the detected temperature to the electric signal sending device; the electric signal sending device compares the maximum value of all temperatures, and the installation position of each temperature sensor is set according to the actual layout of the battery in the new energy tractor.
3. The system for monitoring the safety of the battery of the new energy tractor according to claim 1, wherein the current data collection module comprises a plurality of current sensors externally connected with a battery circuit; the current data collection module numbers each battery pack; each current sensor corresponds to one battery pack, and monitors output current generated in the battery pack in real time.
4. The system for monitoring the safety of the battery of the new energy tractor according to claim 1, wherein the battery swelling monitoring module comprises a plurality of image acquisition devices and image analysis devices, wherein the image acquisition devices are installed outside the battery and can acquire images of a battery shell in real time; the image acquisition equipment is electrically connected with the image analysis equipment; the image acquisition equipment shoots an image of the battery shell in real time; sending the shot shell image to image analysis equipment; the image analysis equipment analyzes whether the battery shell has a bulging phenomenon by using an image analysis technology; and the severity of the ballooning phenomenon.
5. The system for monitoring the safety of the battery of the new energy tractor according to claim 1, wherein the charging duration monitoring module comprises a timing device connected with the battery; the initial value of the timing device is 0, and when the timing device senses that the battery is in a connection state with the power line, the battery is judged to be in a charging state; the timing device starts timing.
6. The system for monitoring the safety of the battery of the new energy tractor according to claim 1, wherein the safety early warning module for judging the abnormal data of the battery comprises the following modes:
mode 1: the safety early warning module presets a temperature threshold T; the safety early warning module judges whether the highest temperature of the battery sent by the temperature data collecting module is greater than a temperature threshold T in real time; if the temperature is greater than the temperature threshold T, judging that the battery is in high-temperature danger; the safety early warning module reminds the battery of overhigh temperature in a voice broadcasting mode;
mode 2: the safety early warning module acquires the current variation amplitude of each battery pack in real time; presetting a current change threshold I; the safety early warning module judges whether the current change amplitude is larger than a current change threshold I in real time; if the current variation threshold value is larger than the current variation threshold value I, the battery is judged to have short circuit danger; the safety early warning module reminds that the corresponding battery pack possibly has a short circuit danger in a voice broadcasting mode;
mode 3: the safety early warning module is used for presetting a battery swelling amplitude threshold value G; the safety early warning module acquires the battery swelling severity degree sent by the battery swelling monitoring module; judging whether the battery bulging severity degree is larger than a bulging amplitude threshold value G or not; if the battery is larger than the bulging amplitude threshold value G, judging that the battery has a bulging risk; the safety early warning module reminds the corresponding battery pack of possibly having a battery bulging danger in a voice broadcasting mode;
mode 4: the safety early warning module presets a charging time threshold S; the safety early warning module acquires the charging time sent by the charging time monitoring module in real time and judges whether the charging time is greater than a charging time threshold value S; if the charging time length is greater than the charging time length threshold S, the battery is judged to have the risk of overcharging; the safety early warning module reminds the corresponding battery pack of being possibly in danger of overcharge in a voice broadcasting mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211097005.1A CN115648941A (en) | 2022-09-08 | 2022-09-08 | New forms of energy tractor battery safety monitoring system |
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| CN202211097005.1A CN115648941A (en) | 2022-09-08 | 2022-09-08 | New forms of energy tractor battery safety monitoring system |
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| CN202211097005.1A Pending CN115648941A (en) | 2022-09-08 | 2022-09-08 | New forms of energy tractor battery safety monitoring system |
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- 2022-09-08 CN CN202211097005.1A patent/CN115648941A/en active Pending
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