CN108695075B - CAN bus communication-based super capacitor monitoring system capable of real-time detection - Google Patents
CAN bus communication-based super capacitor monitoring system capable of real-time detection Download PDFInfo
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Abstract
The invention relates to the field of super capacitors, in particular to a super capacitor monitoring system based on CAN bus communication. The environment temperature, the voltage and the current of the super capacitor monomer are respectively detected through a temperature sensor, a voltage detection module and a current detection module of the super capacitor management system, and the obtained data are classified by combining a first-stage classifier, so that the efficiency of subsequent data processing is improved; when the super capacitor monomer has abnormal conditions such as overhigh or low ambient temperature, overhigh or low voltage value, overhigh or low current value and the like, the whole vehicle controller controls the adjusting module to adjust the super capacitor monomer, so that real-time detection is realized, the faults of the whole vehicle and even the combustion phenomenon caused by the abnormal super capacitor are prevented, and the stability and the reliability of the electric vehicle are also improved.
Description
The invention patent named super capacitor monitoring system based on CAN bus communication, which is filed on 2015 at 11/19 and has the application number of 201510799547.7, is filed in a divisional application.
Technical Field
The invention relates to the field of super capacitors, in particular to a super capacitor monitoring system based on CAN bus communication.
Background
With the development of the new energy automobile industry and the continuous promotion and innovation of the related technology, the 165F48V super capacitor with the characteristics of high power density, short charging and discharging time, long cycle life, wide working temperature range and the like is widely applied to various hybrid electric vehicles. With the vigorous support of national policies, the number of new energy vehicles has increased year by year and has been running around the country. However, in recent years, ignition and combustion events of energy storage devices have raised concerns about safety of new energy vehicles, and safety of energy storage devices has been questioned, and social attention has been paid to safety of hybrid vehicles. The super capacitor is used as a core component of the hybrid electric vehicle, so how to safely, reliably and stably use the super capacitor, the safety of the system and the hybrid electric vehicle is improved, and the current energy storage design is important.
In order to improve the safe reliability of the super capacitor, numerous control devices are designed in the market at present, and in order to monitor the super capacitor more quickly and accurately, the control devices adopt more detection devices, so that the structure of the whole system is more complex, the data processing is slower, and the safe reliability of the hybrid electric vehicle is seriously influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the super-capacitor monitoring system is based on CAN bus communication, simple in structure and high in transmission efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
a super capacitor monitoring system based on CAN bus communication comprises a super capacitor, a super capacitor management system and a whole vehicle controller which are connected with each other through a CAN bus;
the super capacitor comprises a super capacitor monomer and a regulating module which are connected with each other;
the super capacitor management system comprises a temperature sensor, a voltage detection module, a current detection module, a first-stage classifier, a comparator and a controller;
the temperature sensor is used for detecting the environmental temperature of the super capacitor monomer;
the voltage detection module is used for detecting the voltage of the super capacitor monomer;
the current detection module is used for detecting the current of the super capacitor monomer;
the temperature sensor, the voltage detection module and the current detection module are respectively connected with the first-stage classifier;
the first-stage classifier, the comparator and the controller are connected in sequence;
the controller is connected with the whole vehicle controller; and the vehicle control unit is connected with the super capacitor unit through the adjusting module.
The invention has the beneficial effects that: the environment temperature, the voltage and the current of the super capacitor monomer are respectively detected through a temperature sensor, a voltage detection module and a current detection module of the super capacitor management system, and the obtained data are classified by combining a first-stage classifier, so that the efficiency of subsequent data processing is improved; when the super capacitor monomer has abnormal conditions such as overhigh or low ambient temperature, overhigh or low voltage value, overhigh or low current value and the like, the whole vehicle controller controls the adjusting module to adjust the super capacitor monomer, so that real-time detection is realized, the faults of the whole vehicle and even the combustion phenomenon caused by the abnormal super capacitor are prevented, and the stability and the reliability of the electric vehicle are also improved.
Drawings
FIG. 1 is a schematic structural diagram of a super capacitor monitoring system based on CAN bus communication according to the present invention;
FIG. 2 is a schematic diagram of a first stage classifier according to the present invention;
FIG. 3 is a schematic view of a second embodiment of the present invention;
description of reference numerals:
1. a super capacitor; 11. a super capacitor monomer; 12. an adjustment module; 2. a super capacitor management system; 21. a temperature sensor; 22. a voltage detection module; 23. a current detection module; 24. a first stage classifier; 241. a first data transmission channel; 242. a second data transmission channel; 243. a third data transmission channel; 25. a comparator; 26. a controller; 27. a second stage classifier; 3. and (5) a vehicle control unit.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the temperature sensor, the voltage detection module and the current detection module of the super capacitor management system are used for respectively detecting the ambient temperature, the voltage and the current of the super capacitor single body, and the obtained data are classified by combining the first-stage classifier, so that the detection of the super capacitor single body in real time is realized, and meanwhile, the efficiency of subsequent data processing is improved.
Referring to fig. 1-3, the super capacitor monitoring system based on CAN bus communication provided by the invention includes a super capacitor 1, a super capacitor management system 2 and a vehicle control unit 3 which are connected with each other through a CAN bus;
the super capacitor 1 comprises a super capacitor single body 11 and a regulating module 12 which are connected with each other;
the super capacitor management system 2 comprises a temperature sensor 21, a voltage detection module 22, a current detection module 23, a first-stage classifier 24, a comparator 25 and a controller 26;
the temperature sensor 21 is used for detecting the environmental temperature of the super capacitor monomer;
the voltage detection module 22 is configured to detect a voltage of the supercapacitor unit;
the current detection module 23 is configured to detect a current of the super capacitor unit;
the temperature sensor 21, the voltage detection module 22 and the current detection module 23 are respectively connected with the first-stage classifier 24;
the first-stage classifier 24, the comparator 25 and the controller 26 are connected in sequence;
the controller 26 is connected with the vehicle control unit 3; and the vehicle control unit 3 is connected with the super capacitor unit 11 through the adjusting module 12.
From the above description, the beneficial effects of the present invention are: the environment temperature, the voltage and the current of the super capacitor monomer are respectively detected through a temperature sensor, a voltage detection module and a current detection module of the super capacitor management system, and the obtained data are classified by combining a first-stage classifier, so that the efficiency of subsequent data processing is improved; when the super capacitor monomer has abnormal conditions such as overhigh or low ambient temperature, overhigh or low voltage value, overhigh or low current value and the like, the whole vehicle controller controls the adjusting module to adjust the super capacitor monomer, so that real-time detection is realized, the faults of the whole vehicle and even the combustion phenomenon caused by the abnormal super capacitor are prevented, and the stability and the reliability of the electric vehicle are also improved.
Further, the first-stage classifier is provided with three data transmission channels, namely a first data transmission channel 241, a second data transmission channel 242 and a third data transmission channel 243; the first data transmission channel 241 is connected with the temperature sensor 21; the second data transmission channel 242 is connected with the voltage detection module 22; the third data transmission channel 243 is connected to the current detection module 23.
The first-stage classifier is provided with three data transmission channels, and carries out classification processing on detected ambient temperature data, voltage values and current values, so that errors in data transmission can be prevented, and the efficiency of subsequent data processing is improved.
Furthermore, an isolation channel is arranged between the data transmission channels.
As can be seen from the above description, by setting the isolation channel, the data or signal interference between the data transmission channels can be prevented, and the error code can be generated, thereby playing a good protection role.
Further, a second-stage classifier 27 with the same structure as the first-stage classifier is also included between the first-stage classifier 24 and the comparator 25; two first-stage classifiers 24 are connected to one second-stage classifier 27; the second stage classifier 27 is connected to the comparator 25.
According to the description, the second-stage classifier is added, so that data are transmitted to the comparator after being subjected to two times of classification processing, the data processing pressure of the comparator is further reduced, and the data processing efficiency of the comparator is improved. Practical practice shows that when the connection ratio between the first-stage classifier and the second-stage classifier is 2: 1, the efficiency is highest.
Further, the super capacitor management system further comprises a memory connected with the controller and used for recording the ambient temperature value of the super capacitor monomer detected by the temperature sensor, the voltage value of the super capacitor monomer detected by the voltage detection module and the current value of the super capacitor monomer detected by the current detection module.
As can be seen from the above description, the ambient temperature value, the voltage value and the current value can be recorded by the memory and can be queried and called by the system.
Furthermore, the super capacitor also comprises an output port connected with the super capacitor monomer; the output port is connected with an external upper computer.
According to the description, when the super capacitor fails, the super capacitor can be connected with the output port through the upper computer to be overhauled conveniently and quickly.
Referring to fig. 1-3, a first embodiment of the present invention is:
the invention provides a super capacitor monitoring system based on CAN bus communication, which comprises a super capacitor 1, a super capacitor management system 2 and a vehicle control unit 3 which are mutually connected through a CAN bus;
the super capacitor 1 comprises a super capacitor single body 11 and a regulating module 12 which are connected with each other;
the super capacitor management system 2 comprises a temperature sensor 21, a voltage detection module 22, a current detection module 23, a first-stage classifier 24, a comparator 25 and a controller 26;
the temperature sensor 21 is used for detecting the environmental temperature of the super capacitor monomer; the voltage detection module 22 is configured to detect a voltage of the supercapacitor unit; the current detection module 23 is configured to detect a current of the super capacitor unit;
the temperature sensor 21, the voltage detection module 22 and the current detection module 23 are respectively connected with the first-stage classifier 24; the first-stage classifier 24, the comparator 25 and the controller 26 are connected in sequence; the controller 26 is connected with the vehicle control unit 3; and the vehicle control unit 3 is connected with the super capacitor unit 11 through the adjusting module 12.
It should be noted that: the temperature sensor, the voltage detection module and the current detection module can be arranged in the super capacitor; and CAN communication is adopted among the devices.
The first-stage classifier 24 is provided with three data transmission channels, namely a first data transmission channel 241, a second data transmission channel 242 and a third data transmission channel 243; the first data transmission channel 241 is connected with the temperature sensor 21; the second data transmission channel 242 is connected with the voltage detection module 22; the third data transmission channel 243 is connected to the current detection module 23. The first-stage classifier is provided with three data transmission channels, and carries out classification processing on detected ambient temperature data, voltage values and current values, so that errors in data transmission can be prevented, and the efficiency of subsequent data processing is improved.
And isolation channels are arranged between the data transmission channels. By arranging the isolation channel, data or signals between the data transmission channels can be prevented from interfering with each other, error codes are generated, and a good protection effect is achieved.
The super capacitor management system further comprises a memory connected with the controller and used for recording the environmental temperature value of the super capacitor monomer detected by the temperature sensor, the voltage value of the super capacitor monomer detected by the voltage detection module and the current value of the super capacitor monomer detected by the current detection module. The ambient temperature value, the voltage value and the current value can be recorded through the memory and can be inquired and called by the system.
The super capacitor also comprises an output port connected with the super capacitor monomer; the output port is connected with an external upper computer. When super capacitor trouble, the accessible host computer is connected with output port and is overhauld, convenient and fast.
The super capacitor is mainly composed of a super capacitor monomer, a coaming, a PCB box, a voltage-sharing circuit, a CAN communication circuit, a voltage acquisition terminal, an ESR resistor, an upper substrate and a lower substrate.
3000F 2.7V super capacitor monomer becomes the module through connecting behind the copper bar series connection, and every super capacitor monomer fixedly connected with is fire-retardant low pressure pencil, and the voltage acquisition terminal that perforates through the upper substrate to in the PCB box is connected, and the voltage acquisition terminal is connected with voltage detection module. The connected super capacitor monomer is placed in the enclosing plate to be fixed and is sealed and fastened through the upper substrate and the lower substrate.
ESR resistors are fixed in the middle of all the super capacitor units, and a total voltage collecting terminal (a plurality of voltage collecting terminals are connected with the total voltage collecting terminal) is fixed at the anode lug and the cathode lug.
When super capacitor trouble, accessible host computer is connected with the free voltage acquisition terminal of super capacitor (being output port) and is overhauld, and convenient and fast can accurately know which super capacitor monomer goes wrong.
Referring to fig. 1-3, the second embodiment of the present invention is:
the second embodiment adds a second-stage classifier 27 with the same structure as the first-stage classifier between the first-stage classifier 24 and the comparator 25 on the basis of the first embodiment; two first-stage classifiers 24 are connected to one second-stage classifier 27; the second stage classifier 27 is connected to the comparator 25. And a second-stage classifier is added, so that data are transmitted to the comparator after being subjected to two times of classification processing, the data processing pressure of the comparator is further reduced, and the data processing efficiency of the comparator is improved. Practical practice shows that when the connection ratio between the first-stage classifier and the second-stage classifier is 2: 1, the efficiency is highest.
In summary, according to the super capacitor monitoring system based on CAN bus communication provided by the invention, the temperature sensor, the voltage detection module and the current detection module of the super capacitor management system are used for respectively detecting the ambient temperature, the voltage and the current of the super capacitor single body, and the obtained data is classified by combining the first-stage classifier, so that the efficiency of subsequent data processing is improved; when the super capacitor monomer has abnormal conditions such as overhigh or low ambient temperature, overhigh or low voltage value, overhigh or low current value and the like, the whole vehicle controller controls the adjusting module to adjust the super capacitor monomer, so that real-time detection is realized, the faults of the whole vehicle and even the combustion phenomenon caused by the abnormal super capacitor are prevented, and the stability and the reliability of the electric vehicle are also improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (2)
1. A super capacitor monitoring system capable of real-time detection and based on CAN bus communication is characterized by comprising a super capacitor, a super capacitor management system and a whole vehicle controller which are mutually connected through a CAN bus;
the super capacitor comprises a super capacitor monomer and a regulating module which are connected with each other;
the super capacitor management system comprises a temperature sensor, a voltage detection module, a current detection module, a first-stage classifier, a comparator and a controller;
the temperature sensor is used for detecting the environmental temperature of the super capacitor monomer;
the voltage detection module is used for detecting the voltage of the super capacitor monomer;
the current detection module is used for detecting the current of the super capacitor monomer;
the temperature sensor, the voltage detection module and the current detection module are respectively connected with the first-stage classifier;
the first-stage classifier, the comparator and the controller are connected in sequence;
the controller is connected with the whole vehicle controller; the vehicle control unit is connected with the super capacitor monomer through the adjusting module;
the first-stage classifier is provided with three data transmission channels which are a first data transmission channel, a second data transmission channel and a third data transmission channel respectively; the first data transmission channel is connected with a temperature sensor; the second data transmission channel is connected with the voltage detection module; the third data transmission channel is connected with the current detection module; isolation channels are arranged between the data transmission channels;
the temperature sensor, the voltage detection module and the current detection module are respectively arranged in the super capacitor;
the super capacitor management system also comprises a memory connected with the controller and used for recording the environmental temperature value of the super capacitor monomer detected by the temperature sensor, the voltage value of the super capacitor monomer detected by the voltage detection module and the current value of the super capacitor monomer detected by the current detection module;
the super capacitor also comprises an output port connected with the super capacitor monomer; the output port is connected with an external upper computer.
2. The CAN bus communication-based super capacitor monitoring system capable of real-time detection according to claim 1, further comprising a second-stage classifier having the same structure as the first-stage classifier between the first-stage classifier and the comparator; the two first-stage classifiers are connected with one second-stage classifier; the second-stage classifier is connected with the comparator.
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| CN201810641885.1A CN108695075B (en) | 2015-11-19 | 2015-11-19 | CAN bus communication-based super capacitor monitoring system capable of real-time detection |
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| CN201810641885.1A CN108695075B (en) | 2015-11-19 | 2015-11-19 | CAN bus communication-based super capacitor monitoring system capable of real-time detection |
| CN201510799547.7A CN105304346B (en) | 2015-11-19 | 2015-11-19 | A kind of super capacitor monitoring system based on CAN bus communication |
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| CN201510799547.7A Division CN105304346B (en) | 2015-11-19 | 2015-11-19 | A kind of super capacitor monitoring system based on CAN bus communication |
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| CN201510799547.7A Active CN105304346B (en) | 2015-11-19 | 2015-11-19 | A kind of super capacitor monitoring system based on CAN bus communication |
| CN201810641885.1A Active CN108695075B (en) | 2015-11-19 | 2015-11-19 | CAN bus communication-based super capacitor monitoring system capable of real-time detection |
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| CN105841828A (en) * | 2016-05-25 | 2016-08-10 | 东莞理工学院 | Supercapacitor module temperature monitoring system based on single chip microcomputer |
| CN108225599A (en) * | 2017-11-14 | 2018-06-29 | 中国科学院电工研究所无锡分所 | A kind of super capacitor temp detecting controller |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108597888A (en) | 2018-09-28 |
| CN105304346A (en) | 2016-02-03 |
| CN108597888B (en) | 2019-12-10 |
| CN105304346B (en) | 2018-06-19 |
| CN108695075A (en) | 2018-10-23 |
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