CN110455440B - System, method and storage medium for detecting effectiveness of thermistor in high-voltage connector - Google Patents
System, method and storage medium for detecting effectiveness of thermistor in high-voltage connector Download PDFInfo
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Abstract
The application relates to a thermistor validity detection system, method and storage medium in a high-voltage connector, wherein the system comprises: BMS and constant temperature test chamber. The high-voltage connector to be tested is arranged in a constant-temperature test box. The BMS is in communication connection with the constant temperature test chamber. The first end and the second end of the BMS are respectively connected with the two ends of the thermistor in the high-voltage connector. The BMS is used for sending a temperature control command so as to enable the constant temperature test box to reach a target control temperature; obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, a target control temperature, the current resistance value and a thermistor characteristic curve; if the single time is invalid, confirming that the thermistor is invalid; if the target control temperature is valid for one time, judging whether the target control temperature reaches a maximum temperature threshold; if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and carrying out single validity detection again; and if the target control temperature is greater than or equal to the maximum temperature threshold, determining that the thermistor is effective.
Description
Technical Field
The present disclosure relates to the field of high-voltage connector testing technologies, and in particular, to a system and a method for testing validity of a thermistor in a high-voltage connector, and a storage medium.
Background
In order to protect the environment and slow down the step of energy crisis, electric vehicles have become the future direction of development of the automobile industry. The high-voltage connector is an important device in a power battery system of an electric automobile, and is applied to a plurality of joints in the power battery system, such as among battery boxes in the power battery system, between the battery boxes and a master control box, and between the power battery system and a high-voltage system of the whole automobile. A thermistor and a high-voltage interlocking switch are integrated in a high-voltage connector in the electric automobile, so that the temperature of the high-voltage connector can be fed back to a Battery Management System (BMS) during the running of the automobile, and the safe running of a power Battery System is ensured.
The inventor finds that the performance of individual high-voltage connectors is unreliable, potential safety hazards are left if thermistors in the high-voltage connectors fail, the high-voltage connectors can be connected in a virtual mode under the vibration condition in the driving process of the electric automobile, high-level ablation is generated, and even fire is caused by firing. Therefore, it is urgently needed to design a detection method for detecting the effectiveness of the thermistor inside the high-voltage connector without destroying the structure of the high-voltage connector, and confirming the effectiveness of the thermistor before shipping the electric automobile, so as to prevent the electric automobile from being damaged.
Disclosure of Invention
In view of the above, it is necessary to provide a thermistor validity detection system, method and storage medium in a high-voltage connector, which can detect the validity of a thermistor therein without destroying the structure of the high-voltage connector.
In one aspect, an embodiment of the present application provides a thermistor validity detection system in a high-voltage connector, including: BMS and a constant temperature test chamber;
the high-voltage connector to be tested is arranged in the constant-temperature test box;
the BMS is in communication connection with the constant temperature test chamber; the first end and the second end of the BMS are respectively connected with the two ends of the thermistor in the high-voltage connector;
the BMS is used for sending a temperature control instruction so as to enable the constant temperature test box to reach a target control temperature; obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, the target control temperature, the current resistance value and a thermistor characteristic curve; if the single time is invalid, the thermistor is invalid; if the target control temperature is valid for a single time, judging whether the target control temperature reaches a maximum temperature threshold; if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to the step of sending a temperature control instruction so that the constant temperature test box reaches the target control temperature; and if the target control temperature is greater than or equal to the maximum temperature threshold, the thermistor is effective.
In one embodiment, the BMS is further configured to wait a preset time period before acquiring the current resistance value of the thermistor.
In one embodiment, the performing single validity determination according to a preset determination rule, the target control temperature, the current resistance value, and a thermistor characteristic curve includes:
obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
and if the current resistance value does not fall into the effective range of the current theoretical resistance value, the thermistor is invalid for a single time.
In one embodiment, if the target control temperature is less than the maximum temperature threshold, the step of increasing the target control temperature includes:
selecting the minimum preset control temperature from a plurality of preset control temperatures which are higher than the target control temperature as the target control temperature;
alternatively, the first and second electrodes may be,
and adding a preset detection step length to the target control temperature to be used as the target control temperature.
On the other hand, the embodiment of the application also provides a method for detecting the effectiveness of the thermistor in the high-voltage connector, which comprises the following steps:
sending a temperature control instruction to enable the constant temperature test chamber to reach a target control temperature;
obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, the target control temperature, the current resistance value and a thermistor characteristic curve;
if the single time is invalid, the thermistor is invalid;
if the target control temperature is valid for a single time, judging whether the target control temperature reaches a maximum temperature threshold;
if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to the step of sending a temperature control instruction so that the constant temperature test box reaches the target control temperature;
and if the target control temperature is greater than or equal to the maximum temperature threshold, the thermistor is effective.
In one embodiment, before obtaining the current resistance value of the thermistor, the method further comprises the following steps: :
waiting for a preset time period.
In one embodiment, the performing single validity determination according to a preset determination rule, the target control temperature, the current resistance value, and a thermistor characteristic curve includes:
obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
and if the current resistance value does not fall into the effective range of the current theoretical resistance value, the thermistor is invalid for a single time.
In one embodiment, if the target control temperature is less than the maximum temperature threshold, the step of increasing the target control temperature includes:
selecting the minimum preset control temperature from a plurality of preset control temperatures which are higher than the target control temperature as the target control temperature;
alternatively, the first and second electrodes may be,
and adding a preset detection step length to the target control temperature to be used as the target control temperature.
In one embodiment, the effective interval of the current theoretical resistance is a resistance interval which takes a preset value up and down by taking the current theoretical resistance as a midpoint.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
sending a temperature control instruction to enable the constant temperature test chamber to reach a target control temperature;
obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, the target control temperature, the current resistance value and a thermistor characteristic curve;
if the single time is invalid, the thermistor is invalid;
if the target control temperature is valid for a single time, judging whether the target control temperature reaches a maximum temperature threshold;
if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to the step of sending a temperature control instruction so that the constant temperature test box reaches the target control temperature;
and if the target control temperature is greater than or equal to the maximum temperature threshold, the thermistor is effective.
According to the system, the method and the storage medium for detecting the effectiveness of the thermistor in the high-voltage connector, the BMS is used for controlling the ambient temperature of the high-voltage connector to reach the target control temperature on the one hand, detecting the resistance value of the thermistor in the high-voltage connector through electric connection on the other hand, judging the single effectiveness of the thermistor through the characteristic curve of the thermistor and the preset judgment rule, gradually increasing the target control temperature and detecting the single effectiveness of the thermistor for multiple times. The thermistor can only be determined to be valid if the target control temperature is greater than or equal to the maximum temperature threshold. Through this embodiment, can detect its inside thermistor validity under the condition of not destroying high voltage connector structure, and through many times of detection, make the testing result more reliable, reduce the potential safety hazard that the back caused because of thermistor inefficacy in the high voltage connector that electric automobile leaves the factory.
Drawings
FIG. 1 is a block diagram of a thermistor validity detection system in a high-voltage connector according to an embodiment;
FIG. 2 is a block diagram of a thermistor effectiveness detection system in another embodiment of the high voltage connector; (ii) a
FIG. 3 is a schematic flow chart illustrating a method for detecting the validity of the thermistor in the high-voltage connector according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, the present application provides a system for detecting the effectiveness of a thermistor in a high-voltage connector, including: BMS110 and constant temperature test chamber 120.
The high-voltage connector to be tested is disposed in the constant temperature test chamber 120.
The BMS110 is in communication connection with the constant temperature test chamber 120; the first and second terminals of the BMS110 are connected to both ends of the thermistor in the high voltage connector, respectively.
The BMS110 is used for sending a temperature control instruction so as to enable the constant temperature test chamber to reach a target control temperature; obtaining the current resistance value of the thermistor, and performing single validity judgment according to a judgment rule, a target control temperature, the current resistance value and a thermistor characteristic curve; if the single time is invalid, confirming that the thermistor is invalid; if the target control temperature is valid for one time, judging whether the target control temperature reaches a maximum temperature threshold; if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to send a temperature control instruction to enable the constant temperature test box to reach the target control temperature; and if the target control temperature is greater than or equal to the maximum temperature threshold, determining that the thermistor is effective.
The communication connection between the BMS110 and the temperature test chamber 120 may be a wired communication connection or a wireless communication connection. The temperature control instruction comprises a target control temperature and is used for indicating a temperature controller of the constant temperature test chamber to control the temperature in the chamber to reach the target control temperature. The thermistor characteristic curve is a set of preset data sets in which the theoretical resistance of the thermistor and the corresponding theoretical temperature are recorded. The highest temperature threshold is a preset value and can be set according to the test requirement.
Specifically, the matched high-voltage connector is placed in a constant-temperature test box, a section of lead is reserved outside the box, and the BMS is started to start detection. The internal circuit configuration of the different high voltage connectors is also different, and as shown in fig. 2, when the thermistor is connected in series with the high voltage interlock switch, the first and second ends of the BMS are connected to the temperature probe L1 and the temperature probe L2 on the high voltage connector.
According to the system for detecting the effectiveness of the thermistor in the high-voltage connector, the BMS is used for controlling the ambient temperature of the high-voltage connector to reach the target control temperature, the resistance of the thermistor in the high-voltage connector is detected through electric connection, the thermistor characteristic curve and the preset judgment rule are used for judging the single effectiveness of the thermistor, the target control temperature is gradually increased, and the single effectiveness of the thermistor is detected for multiple times. The thermistor can only be determined to be valid if the target control temperature is greater than or equal to the maximum temperature threshold. Through this embodiment, can detect its inside thermistor validity under the condition of not destroying high voltage connector structure, and through many times of detection, make the testing result more reliable, reduce the potential safety hazard that the back caused because of thermistor inefficacy in the high voltage connector that electric automobile leaves the factory.
In one embodiment, the BMS110 is further configured to wait a preset time period after sending the temperature control command before acquiring the current resistance value of the thermistor. So as to ensure that the temperature in the constant temperature test box reaches the target control temperature and ensure that the detection result is more accurate. For example, the preset time period may be 1 minute.
In one embodiment, the single validity determination according to the preset determination rule, the target control temperature, the current resistance value and the thermistor characteristic curve includes:
obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
and if the current resistance value does not fall into the effective range of the current theoretical resistance value, the thermistor is invalid for a single time.
Specifically, the target control temperature is used as a current theoretical temperature-carrying thermistor characteristic curve of the thermistor to obtain a current theoretical resistance value of the thermistor. The effective interval of the current theoretical resistance value is a resistance value interval including the current resistance value, and if the current resistance value is within the range of the resistance value interval, the current theoretical resistance value is effective once. If the current resistance value is not in the range of the resistance value interval, the single-time invalidation is carried out.
In one embodiment, the effective range of the previous theoretical resistance is a resistance range which takes a preset value up and down with the current theoretical resistance as a midpoint. For example, if the current theoretical resistance is 5 Ω and 0.5 Ω is taken up and down, the effective range is [4.5 Ω, 5.5 Ω ].
In one embodiment, if the target control temperature is less than the maximum temperature threshold, the step of increasing the target control temperature comprises:
and selecting the minimum preset control temperature as the target control temperature from a plurality of preset control temperatures which are higher than the target control temperature.
Specifically, a plurality of preset control temperatures are preset according to test requirements, the minimum preset control temperature is set as a first target control temperature, and according to a single effectiveness detection result, a larger preset control temperature is used as the target control temperature to perform single effectiveness detection. Up to a maximum preset control temperature, i.e. a maximum temperature threshold.
In one embodiment, if the target control temperature is less than the maximum temperature threshold, the step of increasing the target control temperature comprises:
and adding a preset detection step length to the target control temperature to be used as the target control temperature.
For example, the target control temperature of the initial detection is set to a preset value, for example, 0 ℃, the preset detection step length is set to 10 ℃, then the target control temperature is increased by 10 ℃ after each single validity detection is valid, and the single validity detection is performed again until the target control temperature is greater than the maximum temperature threshold.
In one embodiment, the present application further provides a method for detecting the validity of a thermistor in a high-voltage connector, which can be applied to the BMS110 in the system for detecting the validity of a thermistor in a high-voltage connector, as shown in fig. 3, and includes the steps of:
step S210, sending a temperature control instruction to enable the constant temperature test chamber to reach a target control temperature;
step S220, acquiring the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, a target control temperature, the current resistance value and a thermistor characteristic curve;
step S230, if the single time is invalid, the thermistor is confirmed to be invalid;
step S240, if the single time is effective, whether the target control temperature reaches the highest temperature threshold is judged;
step S250, if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to the step of sending a temperature control instruction to enable the constant temperature test box to reach the target control temperature;
in step S260, if the target control temperature is not less than the maximum temperature threshold, it is determined that the thermistor is valid.
For specific limitations of the method for detecting the effectiveness of the thermistor in the high-voltage connector, reference may be made to the above limitations of the system for detecting the effectiveness of the thermistor in the high-voltage connector, and details are not repeated here.
In one embodiment, before obtaining the current resistance value of the thermistor, the method further comprises the following steps:
step S211, wait for a preset time period.
In one embodiment, the single validity determination according to the preset determination rule, the target control temperature, the current resistance value and the thermistor characteristic curve includes:
step S221, obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
step S222, if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
in step S223, if the current resistance value does not fall within the valid interval of the current theoretical resistance value, the thermistor is invalidated once.
In one embodiment, if the target control temperature is less than the maximum temperature threshold, the step of increasing the target control temperature comprises:
step S251, selecting the minimum preset control temperature as a target control temperature from a plurality of preset control temperatures which are higher than the target control temperature;
alternatively, the first and second electrodes may be,
in step S252, the target control temperature is added with a preset detection step length to be used as the target control temperature.
In one embodiment, the effective range of the current theoretical resistance is a resistance range that takes a preset value up or down with the current theoretical resistance as a midpoint.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
sending a temperature control instruction to enable the constant temperature test box to reach a target control temperature;
obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, a target control temperature, the current resistance value and a thermistor characteristic curve;
if the single time is invalid, confirming that the thermistor is invalid;
if the target control temperature is valid for one time, judging whether the target control temperature reaches a maximum temperature threshold;
if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to send a temperature control instruction to enable the constant temperature test box to reach the target control temperature;
and if the target control temperature is greater than or equal to the maximum temperature threshold, determining that the thermistor is effective.
In one embodiment, the computer program when executed by the processor further causes the processor to, prior to obtaining the current resistance value of the thermistor:
waiting for a preset time period.
In one embodiment, the computer program when executed by the processor further performs the steps of:
obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
and if the current resistance value does not fall into the effective range of the current theoretical resistance value, the thermistor is invalid for a single time.
In one embodiment, the computer program when executed by the processor further performs the steps of:
selecting the minimum preset control temperature as a target control temperature from a plurality of preset control temperatures which are higher than the target control temperature;
alternatively, the first and second electrodes may be,
and adding a preset detection step length to the target control temperature to be used as the target control temperature.
In one embodiment, the computer program is executed by the processor such that the valid interval of the current theoretical resistance is an interval of resistances up or down to a predetermined value with the current theoretical resistance as a midpoint.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A thermistor validity detection system in a high voltage connector, comprising: BMS and a constant temperature test chamber;
the high-voltage connector to be tested is arranged in the constant-temperature test box;
the BMS is in communication connection with the constant temperature test chamber; the first end and the second end of the BMS are respectively connected with the two ends of the thermistor in the high-voltage connector;
the BMS is used for sending a temperature control instruction so as to enable the constant temperature test box to reach a target control temperature; obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, the target control temperature, the current resistance value and a thermistor characteristic curve; if the thermistor is invalid for a single time, confirming that the thermistor is invalid; if the target control temperature is valid for a single time, judging whether the target control temperature reaches a maximum temperature threshold; if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to the step of sending a temperature control instruction so that the constant temperature test box reaches the target control temperature; if the target control temperature is larger than or equal to the maximum temperature threshold, the thermistor is confirmed to be effective;
wherein, the single validity judgment according to the preset judgment rule, the target control temperature, the current resistance value and the thermistor characteristic curve comprises the following steps:
obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
and if the current resistance value does not fall into the effective range of the current theoretical resistance value, the thermistor is invalid for a single time.
2. The system of claim 1, wherein the BMS is further configured to wait a preset period of time before obtaining the current resistance of the thermistor.
3. The system of claim 2, wherein the step of increasing the target control temperature if the target control temperature is less than a maximum temperature threshold comprises:
selecting the minimum preset control temperature from a plurality of preset control temperatures which are higher than the target control temperature as the target control temperature;
alternatively, the first and second electrodes may be,
and adding a preset detection step length to the target control temperature to be used as the target control temperature.
4. A method for detecting the effectiveness of a thermistor in a high-voltage connector is characterized by comprising the following steps:
sending a temperature control instruction to enable the constant temperature test box to reach a target control temperature;
obtaining the current resistance value of the thermistor, and performing single validity judgment according to a preset judgment rule, the target control temperature, the current resistance value and a thermistor characteristic curve;
if the thermistor is invalid for a single time, confirming that the thermistor is invalid;
if the target control temperature is valid for a single time, judging whether the target control temperature reaches a maximum temperature threshold;
if the target control temperature is smaller than the maximum temperature threshold, increasing the target control temperature, and returning to the step of sending a temperature control instruction so that the constant temperature test box reaches the target control temperature;
if the target control temperature is larger than or equal to the maximum temperature threshold, the thermistor is confirmed to be effective;
wherein, the single validity judgment according to the preset judgment rule, the target control temperature, the current resistance value and the thermistor characteristic curve comprises the following steps:
obtaining the current theoretical resistance value of the thermistor according to the target control temperature and the thermistor characteristic curve;
if the current resistance value falls into the effective range of the current theoretical resistance value, the thermistor is effective for one time;
and if the current resistance value does not fall into the effective range of the current theoretical resistance value, the thermistor is invalid for a single time.
5. The method for detecting the effectiveness of the thermistor in the high-voltage connector as claimed in claim 4, further comprising the steps of, before obtaining the current resistance value of the thermistor:
waiting for a preset time period.
6. The method of claim 5, wherein if the target control temperature is less than a maximum temperature threshold, the step of increasing the target control temperature comprises:
selecting the minimum preset control temperature from a plurality of preset control temperatures which are higher than the target control temperature as the target control temperature;
alternatively, the first and second electrodes may be,
and adding a preset detection step length to the target control temperature to be used as the target control temperature.
7. The method for detecting the effectiveness of the thermistor in the high-voltage connector as claimed in claim 5, wherein the effective interval of the current theoretical resistance is an interval of resistance taking preset values up and down with the current theoretical resistance as a midpoint.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for detecting the validity of a thermistor in a high-voltage connector as claimed in any one of claims 4 to 7.
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| CN201910820350.5A CN110455440B (en) | 2019-09-01 | 2019-09-01 | System, method and storage medium for detecting effectiveness of thermistor in high-voltage connector |
| PCT/CN2019/123180 WO2021036081A1 (en) | 2019-09-01 | 2019-12-05 | System and method for detecting validity of thermistor in high-voltage connector, and storage medium |
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| CN201910820350.5A CN110455440B (en) | 2019-09-01 | 2019-09-01 | System, method and storage medium for detecting effectiveness of thermistor in high-voltage connector |
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| CN111537777B (en) * | 2020-04-13 | 2022-11-29 | 深圳欣旺达智能科技有限公司 | Automatic testing method and device for thermistor failure current |
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| JPH02165856A (en) * | 1988-12-16 | 1990-06-26 | Sumitomo Metal Ind Ltd | Method for discriminating abnormality of temperature measuring element in continuous casting apparatus |
| KR20060072668A (en) * | 2004-12-23 | 2006-06-28 | 현대자동차주식회사 | Water temperature sensor of vehicle and the diagnosis thereof |
| US7991524B2 (en) * | 2008-01-02 | 2011-08-02 | GM Global Technology Operations LLC | Temperature sensor diagnostics |
| US9086862B2 (en) * | 2012-02-03 | 2015-07-21 | Getac Technology Corporation | Apparatus and method of protecting electronic apparatus using a temperature-power table for an electronic component under different system and environmental temperatures |
| CN103234655B (en) * | 2013-04-08 | 2015-12-09 | 惠州市亿能电子有限公司 | A kind of BMS temperature sensing circuit adopting thermistor |
| CN104655976B (en) * | 2014-12-04 | 2017-08-22 | 北京七星华创电子股份有限公司 | A kind of thermocouple fault diagnosis method and system for semiconductor heat treatment equipment |
| EP3206093A1 (en) * | 2016-02-09 | 2017-08-16 | Siemens Aktiengesellschaft | Detection of temperature sensor failure in turbine systems |
| CN106248256A (en) * | 2016-08-31 | 2016-12-21 | 天津锐意泰克汽车电子有限公司 | A kind of cooling-water temperature sensor method of testing |
| CN108088589B (en) * | 2016-11-23 | 2020-09-25 | 纬湃汽车电子(长春)有限公司 | Device and method for detecting validity of thermistor |
| CN108297807A (en) * | 2018-01-31 | 2018-07-20 | 北京国能电池科技股份有限公司 | Collecting device, high-tension connector and electric vehicle |
| CN108312850B (en) * | 2018-01-31 | 2020-11-27 | 北京国能电池科技股份有限公司 | High-voltage connector detection device and method and battery management system |
| CN110455440B (en) * | 2019-09-01 | 2020-04-24 | 深圳市雄韬锂电有限公司 | System, method and storage medium for detecting effectiveness of thermistor in high-voltage connector |
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