CN115723634A - Fault detection method and system for a fuel cell vehicle and its hydrogen refueling port - Google Patents
Fault detection method and system for a fuel cell vehicle and its hydrogen refueling port Download PDFInfo
- Publication number
- CN115723634A CN115723634A CN202110997601.4A CN202110997601A CN115723634A CN 115723634 A CN115723634 A CN 115723634A CN 202110997601 A CN202110997601 A CN 202110997601A CN 115723634 A CN115723634 A CN 115723634A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- hydrogenation
- time
- port
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Fuel Cell (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种燃料电池车辆及其加氢口故障检测方法及系统，属于新能源车辆安全技术领域。The invention relates to a fuel cell vehicle and a method and system for detecting a failure of a hydrogen refueling port thereof, belonging to the technical field of new energy vehicle safety.
背景技术Background technique
加氢口是指车辆与加氢枪相连接的部件总和，其内部有密封圈，属于易损易耗件。由于车辆运营环境复杂，杂质容易进入加氢口，高压下杂质被压入密封圈，长期使用含有杂质的密封圈会损坏加氢口，导致加氢时密封不严产生氢气泄漏，存在氢气爆炸等安全风险。按《GB/T24549燃料电池电动汽车安全要求》的条款4.1.2.1.1要求：“在安装氢系统的封闭或半封闭的空间上方的适当位置，应至少安装一个氢气泄漏探测传感器，能实时检测氢气的浓度，并将信号传递给氢气泄漏报警装置”。燃料电池车辆一般在加氢口上方设置有氢浓度传感器，同时氢浓度传感器会将数据传递至氢系统控制器，控制器将检测到的浓度数值与报警阈值进行对比判断，若超过阈值则报出氢气泄漏故障。The hydrogen refueling port refers to the sum of the parts connected to the vehicle and the hydrogen refueling gun. There is a sealing ring inside, which is a vulnerable and consumable part. Due to the complex operating environment of the vehicle, impurities are easy to enter the hydrogenation port, and the impurities are pressed into the sealing ring under high pressure. Long-term use of the sealing ring containing impurities will damage the hydrogenation port, resulting in hydrogen leakage due to poor sealing during hydrogenation, hydrogen explosion, etc. Security Risk. According to the requirements of clause 4.1.2.1.1 of "GB/T24549 Safety Requirements for Fuel Cell Electric Vehicles": "at least one hydrogen leak detection sensor shall be installed at an appropriate position above the closed or semi-closed space where the hydrogen system is installed, capable of real-time detection The concentration of hydrogen and transmit the signal to the hydrogen leakage alarm device". Fuel cell vehicles are generally equipped with a hydrogen concentration sensor above the hydrogen refueling port. At the same time, the hydrogen concentration sensor will transmit the data to the hydrogen system controller. The controller will compare the detected concentration value with the alarm threshold and report if it exceeds the threshold. Hydrogen leak failure.
由于车辆加氢时整车下电，氢浓度传感器和氢系统控制器均无法正常工作，只有等到加氢完毕，整车上电工作后，氢浓度传感器和氢系统控制器才能正常工作，因此现有对加氢口的故障检测都是加氢完毕后进行的，而加氢完毕后，若氢浓度传感器检测到的浓度值超过设定阈值，则默认为氢气泄露故障，氢系统传感器就会进行报警，提醒工作人员对加氢口进行检修。虽然上述方法能够检测出氢气泄露，由于加氢完毕后，造成氢气泄露的还有可能是加氢管路泄露，因此，现有的方法无法判断出到底是加氢口故障还是氢气管路泄露导致的氢浓度超标，即无法准确的检测出加氢口故障，还需人工检测一下，不仅效率低还提高了检测成本。Since the vehicle is powered off during hydrogen refueling, neither the hydrogen concentration sensor nor the hydrogen system controller can work normally. The fault detection of the hydrogen refueling port is carried out after the hydrogen refueling is completed, and after the hydrogen refueling is completed, if the concentration value detected by the hydrogen concentration sensor exceeds the set threshold, it will default to a hydrogen leakage fault, and the hydrogen system sensor will perform a fault detection. Alarm to remind the staff to overhaul the hydrogen refueling port. Although the above method can detect hydrogen leakage, after the hydrogenation is completed, the leakage of hydrogen may also be caused by the leakage of the hydrogenation pipeline. Therefore, the existing method cannot determine whether it is caused by the failure of the hydrogenation port or the leakage of the hydrogen pipeline. If the hydrogen concentration exceeds the standard, that is, the failure of the hydrogen refueling port cannot be accurately detected, and manual inspection is required, which not only reduces the efficiency but also increases the detection cost.
发明内容Contents of the invention
本发明的目的是提供一种燃料电池车辆及其加氢口故障检测方法及系统，以解决目前无法实现对加氢口故障准确检测的问题。The purpose of the present invention is to provide a fuel cell vehicle and its hydrogenation port fault detection method and system to solve the current problem that accurate detection of hydrogenation port faults cannot be realized.
本发明为解决上述技术问题而提供一种燃料电池车辆加氢口故障检测方法，该检测方法包括以下步骤：In order to solve the above technical problems, the present invention provides a fuel cell vehicle hydrogenation port failure detection method, the detection method includes the following steps:
1)在车辆加氢完毕后，判断是否加氢成功；1) After the hydrogenation of the vehicle is completed, judge whether the hydrogenation is successful;
2)在加氢成功后，检测加氢口处的氢气浓度值，判断浓度是否超过设定阈值；2) After hydrogenation is successful, detect the hydrogen concentration at the hydrogenation port to determine whether the concentration exceeds the set threshold;
3)若超过设定阈值，则记录检测时间作为第一时间，并记录加氢口处的氢气浓度值降至0时的时间，作为第二时间；3) If the set threshold is exceeded, record the detection time as the first time, and record the time when the hydrogen concentration at the hydrogenation port drops to 0 as the second time;
4)判断第一时间和第二时间的时间差值是小于设定时间阈值，若小于，则是加氢口故障，否则，是加氢管路出现故障。4) Judging that the time difference between the first time and the second time is less than the set time threshold, if it is less, then the hydrogenation port is faulty, otherwise, the hydrogenation pipeline is faulty.
本发明在车辆每次加氢成功后，检测加氢口的氢气浓度，在浓度值大于设定阈值时，根据浓度值降为0所需要的时间判断是否为加氢口故障，若时间过长，则认为是加氢管路氢气泄露导致的。因此，本发明能够排除加氢管路氢气泄露的情况，检测出车辆的加氢口故障，提升车辆报出加氢口故障的准确性，延长加氢口使用寿命，不需人工检测加氢口是否故障，降低了检测成本。The present invention detects the hydrogen concentration of the hydrogenation port after each successful hydrogenation of the vehicle, and when the concentration value is greater than the set threshold value, judges whether it is a failure of the hydrogenation port according to the time required for the concentration value to drop to 0, if the time is too long , it is considered to be caused by hydrogen leakage in the hydrogenation pipeline. Therefore, the present invention can eliminate the hydrogen leakage of the hydrogenation pipeline, detect the failure of the hydrogenation port of the vehicle, improve the accuracy of the report of the failure of the hydrogenation port by the vehicle, prolong the service life of the hydrogenation port, and do not need to manually detect the hydrogenation port Whether it is faulty or not, the detection cost is reduced.
进一步地，为提高检测精度，所述的设定时间阈值为加氢管路内氢气完全泄露所需要的时间。Further, in order to improve the detection accuracy, the set time threshold is the time required for the complete leakage of hydrogen in the hydrogenation pipeline.
进一步地，为准确、快速的实现加氢成功的判断，所述步骤1)中加氢成功的判断是根据氢气瓶压力和温度计算加氢质量来判断的，若加氢质量大于0，则判断车辆加氢成功。Further, in order to accurately and quickly realize the judgment of hydrogenation success, the judgment of hydrogenation success in step 1) is judged by calculating the hydrogenation quality based on the pressure and temperature of the hydrogen cylinder. If the hydrogenation quality is greater than 0, then judge The vehicle was hydrogenated successfully.
本发明还提供了一种燃料电池车辆加氢口故障检测系统，包括氢浓度传感器和氢系统控制器，氢浓度传感器用于检测加氢口处的氢气浓度，氢浓度传感器的输出端与氢系统控制器连接，所述的氢系统控制器用于在加氢成功后，接收氢浓度传感器检测的加氢口处的氢气浓度值，判断浓度是否超过设定阈值；若超过设定阈值，则记录检测时间作为第一时间，并记录加氢口处的氢气浓度值降至0时的时间，作为第二时间；判断第一时间和第二时间的时间差值是小于设定时间阈值，若小于，则是加氢口故障，否则，是加氢管路出现故障。The present invention also provides a fuel cell vehicle hydrogenation port failure detection system, including a hydrogen concentration sensor and a hydrogen system controller, the hydrogen concentration sensor is used to detect the hydrogen concentration at the hydrogenation port, and the output end of the hydrogen concentration sensor is connected to the hydrogen system controller. The controller is connected, and the hydrogen system controller is used to receive the hydrogen concentration value at the hydrogenation port detected by the hydrogen concentration sensor after the hydrogenation is successful, and judge whether the concentration exceeds the set threshold; if it exceeds the set threshold, record the detection Time is used as the first time, and the time when the hydrogen concentration value at the hydrogenation port drops to 0 is recorded as the second time; it is judged that the time difference between the first time and the second time is less than the set time threshold, if it is less than, It is the failure of the hydrogen refueling port, otherwise, it is the failure of the hydrogen refueling pipeline.
本发明在车辆每次加氢成功后，检测加氢口的氢气浓度，在浓度值大于设定阈值时，根据浓度值降为0所需要的时间判断是否为加氢口故障，若时间过长，则认为是加氢管路氢气泄露导致的。因此，本发明能够排除加氢管路氢气泄露的情况，检测出车辆的加氢口故障，提升车辆报出加氢口故障的准确性，延长加氢口使用寿命，不需人工检测加氢口是否故障，降低了检测成本。The present invention detects the hydrogen concentration of the hydrogenation port after each successful hydrogenation of the vehicle, and when the concentration value is greater than the set threshold value, judges whether it is a failure of the hydrogenation port according to the time required for the concentration value to drop to 0, if the time is too long , it is considered to be caused by hydrogen leakage in the hydrogenation pipeline. Therefore, the present invention can eliminate the hydrogen leakage of the hydrogenation pipeline, detect the failure of the hydrogenation port of the vehicle, improve the accuracy of the report of the failure of the hydrogenation port by the vehicle, prolong the service life of the hydrogenation port, and do not need to manually detect the hydrogenation port Whether it is faulty or not, the detection cost is reduced.
进一步地，为提高检测精度，所述的设定时间阈值为加氢管路内氢气完全泄露所需要的时间。Further, in order to improve the detection accuracy, the set time threshold is the time required for the complete leakage of hydrogen in the hydrogenation pipeline.
进一步地，为准确、快速的实现加氢成功的判断，该系统还包括压力传感器和温度传感器，分别用于检测氢气瓶压力和温度，并将检测结果发送给氢系统控制器，氢系统控制器在加氢结束后根据接收到的氢气瓶压力和温度计算加氢质量，若加氢质量大于0，则判断车辆加氢成功。Furthermore, in order to accurately and quickly realize the judgment of hydrogenation success, the system also includes a pressure sensor and a temperature sensor, which are used to detect the pressure and temperature of the hydrogen cylinder respectively, and send the detection results to the hydrogen system controller, the hydrogen system controller After the hydrogenation is completed, the hydrogenation quality is calculated according to the received hydrogen cylinder pressure and temperature. If the hydrogenation quality is greater than 0, it is judged that the hydrogenation of the vehicle is successful.
本发明还提供了一种燃料电池车辆，包括整车控制器、燃料电池系统，燃料电池系统包括氢浓度传感器和氢系统控制器，氢浓度传感器用于检测加氢口处的氢气浓度，氢浓度传感器的输出端与氢系统控制器连接，所述的氢系统控制器用于在加氢成功后，接收氢浓度传感器检测的加氢口处的氢气浓度值，判断浓度是否超过设定阈值；若超过设定阈值，则记录检测时间作为第一时间，并记录加氢口处的氢气浓度值降至0时的时间，作为第二时间；判断第一时间和第二时间的时间差值是小于设定时间阈值，若小于，则是加氢口故障，否则，是加氢管路出现故障。The present invention also provides a fuel cell vehicle, which includes a vehicle controller and a fuel cell system. The fuel cell system includes a hydrogen concentration sensor and a hydrogen system controller. The hydrogen concentration sensor is used to detect the hydrogen concentration at the hydrogen filling port. The output end of the sensor is connected with the hydrogen system controller, and the hydrogen system controller is used to receive the hydrogen concentration value at the hydrogen refueling port detected by the hydrogen concentration sensor after the hydrogen refueling is successful, and judge whether the concentration exceeds the set threshold; Set the threshold, record the detection time as the first time, and record the time when the hydrogen concentration at the hydrogenation port drops to 0 as the second time; judge whether the time difference between the first time and the second time is less than the set time Set the time threshold, if it is less than, it means that the hydrogenation port is faulty, otherwise, the hydrogenation pipeline is faulty.
本发明在车辆每次加氢成功后，检测加氢口的氢气浓度，在浓度值大于设定阈值时，根据浓度值降为0所需要的时间判断是否为加氢口故障，若时间过长，则认为是加氢管路氢气泄露导致的。因此，本发明能够排除加氢管路氢气泄露的情况，检测出车辆的加氢口故障，提升车辆报出加氢口故障的准确性，延长加氢口使用寿命，不需人工检测加氢口是否故障，降低了检测成本。The present invention detects the hydrogen concentration of the hydrogenation port after each successful hydrogenation of the vehicle, and when the concentration value is greater than the set threshold value, judges whether it is a failure of the hydrogenation port according to the time required for the concentration value to drop to 0, if the time is too long , it is considered to be caused by hydrogen leakage in the hydrogenation pipeline. Therefore, the present invention can eliminate the hydrogen leakage of the hydrogenation pipeline, detect the failure of the hydrogenation port of the vehicle, improve the accuracy of the report of the failure of the hydrogenation port by the vehicle, prolong the service life of the hydrogenation port, and do not need to manually detect the hydrogenation port Whether it is faulty or not, the detection cost is reduced.
进一步地，为提高检测精度，所述的设定时间阈值为加氢管路内氢气完全泄露所需要的时间。Further, in order to improve the detection accuracy, the set time threshold is the time required for the complete leakage of hydrogen in the hydrogenation pipeline.
进一步地，为准确、快速的实现加氢成功的判断，还包括分别用于检测氢气瓶压力和温度的压力传感器和温度传感器，并将检测结果发送给氢系统控制器，氢系统控制器在加氢结束后根据接收到的氢气瓶压力和温度计算加氢质量，若加氢质量大于0，则判断车辆加氢成功。Further, in order to accurately and quickly realize the judgment of hydrogenation success, it also includes a pressure sensor and a temperature sensor for detecting the pressure and temperature of the hydrogen cylinder respectively, and sends the detection results to the hydrogen system controller. After the hydrogen is completed, the hydrogenation quality is calculated according to the received hydrogen cylinder pressure and temperature. If the hydrogenation quality is greater than 0, it is judged that the hydrogenation of the vehicle is successful.
进一步地，氢系统控制器与整车控制器连接，当氢系统控制器检测到加氢口故障时，氢系控制器将检测结果发送给整车控制器，由整车控制器发送到司机仪表台上进行显示。Furthermore, the hydrogen system controller is connected to the vehicle controller. When the hydrogen system controller detects a failure of the hydrogen refueling port, the hydrogen system controller sends the detection result to the vehicle controller, and the vehicle controller sends it to the driver’s instrument displayed on the stage.
附图说明Description of drawings
图1是本发明燃料电池车辆加氢口故障检测方法的流程图；Fig. 1 is the flow chart of the fuel cell vehicle hydrogenation port failure detection method of the present invention;
图2是本发明燃料电池车辆加氢口故障检测系统的结构框图。Fig. 2 is a structural block diagram of the fuel cell vehicle hydrogenation port failure detection system of the present invention.
具体实施方式Detailed ways
下面结合附图对本发明的具体实施方式作进一步地说明。The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
系统实施例System embodiment
本发明为准确检测出加氢口的故障，在每次加氢成功后，根据加氢口的氢气浓度和氢气浓度降为0所需要的时间实现对加氢口故障的检测。具体而言，如图2所示，本发明的燃料电池车辆加氢口故障检测系统包括氢浓度传感器和氢系统控制器，氢浓度传感器和氢系统控制器之间通过CAN总线连接，氢浓度传感器安装于加氢口舱体上，以便于及时检测氢气浓度；氢系统控制器用于在加氢成功后，接收氢浓度传感器检测的加氢口处的氢气浓度值，判断浓度是否超过设定阈值；若超过设定阈值，则记录检测时间作为第一时间，并记录加氢口处的氢气浓度值降至0时的时间，作为第二时间；判断第一时间和第二时间的时间差值是小于设定时间阈值，若小于，则是加氢口故障，否则，是加氢管路出现故障。具体的检测流程如图1所示。In order to accurately detect the failure of the hydrogenation port, the invention realizes the detection of the failure of the hydrogenation port according to the hydrogen concentration of the hydrogenation port and the time required for the hydrogen concentration to drop to 0 after each successful hydrogenation. Specifically, as shown in Figure 2, the fuel cell vehicle hydrogen refueling port fault detection system of the present invention includes a hydrogen concentration sensor and a hydrogen system controller, the hydrogen concentration sensor and the hydrogen system controller are connected through a CAN bus, and the hydrogen concentration sensor Installed on the hydrogen refueling port cabin to detect the hydrogen concentration in time; the hydrogen system controller is used to receive the hydrogen concentration value at the hydrogen refueling port detected by the hydrogen concentration sensor after the hydrogen refueling is successful, and determine whether the concentration exceeds the set threshold; If it exceeds the set threshold, record the detection time as the first time, and record the time when the hydrogen concentration at the hydrogenation port drops to 0 as the second time; judge the time difference between the first time and the second time is If it is less than the set time threshold, it means that the hydrogenation port is faulty, otherwise, the hydrogenation pipeline is faulty. The specific detection process is shown in Figure 1.
其中，在车辆加氢完毕后需要判断是否加氢成功，若没有加氢成功，就没有加氢口检测的必要。本发明为了准确、快速地判断加氢是否成功，在该检测系统中增加了压力传感器和温度传感器，均设置在氢瓶内，分别用于检测氢瓶的压力和温度，压力传感器和温度传感器与氢系统控制器连接。在车辆加氢完毕后，整车上电，氢系统控制器接收到氢气瓶压力V和温度W，依据V和W计算加氢质量为M1，若M1＞0，则说明此次加氢成功，否则，说明加氢失败。Among them, after the hydrogenation of the vehicle is completed, it is necessary to judge whether the hydrogenation is successful. If the hydrogenation is not successful, there is no need to detect the hydrogenation port. In order to accurately and quickly judge whether the hydrogenation is successful or not, the present invention adds a pressure sensor and a temperature sensor to the detection system, both of which are arranged in the hydrogen bottle to detect the pressure and temperature of the hydrogen bottle respectively. Hydrogen system controller connection. After the hydrogenation of the vehicle is completed, the vehicle is powered on, and the hydrogen system controller receives the pressure V and temperature W of the hydrogen cylinder, and calculates the hydrogenation quality as M 1 based on V and W. If M 1 >0, it means that the hydrogenation is this time If successful, otherwise, hydrogenation failed.
在车辆加氢成功后，氢系统控制器会接收到的氢浓度传感器采集到的加氢口的氢气浓度值，假设该浓度值为X，氢系统控制器将X与设定阈值进行比较，本实施例中的设定阈值为0，当X大于0时，则说明加氢口可能存在故障，需要进一步判断，若X不大于0，则说明加氢口肯定不存在故障。氢系统控制器在检测出X大于0后，记录一下氢浓度传感器的采集时间，即对应的加氢口浓度为X时的时间点，将该时间点即为T1；并持续检测加氢口的氢气浓度，将检测到加氢口的浓度值降为0后，记录此时的时间为T2，比较T2与T1，将T2减去T1的差值于设定时间T进行比较，若差值小于设定时间T，则说明，此次故障为加氢口的故障，否则，判断为加氢管路泄露故障。其中，设定时间为加氢管路内氢气完全泄露需要的时间。如果是加氢口故障，在加氢完毕后，加氢口会关闭，不会有氢气再从加氢口泄露出去，而加氢口在加氢时泄露出去的氢气在加氢完毕后很快就会没有，若在加氢完毕后加氢口的氢气需要长时间才能消散完，则说明不是加氢口的故障。After the vehicle is refueled successfully, the hydrogen system controller will receive the hydrogen concentration value of the hydrogen refueling port collected by the hydrogen concentration sensor. Assuming that the concentration value is X, the hydrogen system controller will compare X with the set threshold value. The set threshold value in the embodiment is 0. When X is greater than 0, it means that there may be a fault in the hydrogenation port, and further judgment is required. If X is not greater than 0, it means that there is definitely no fault in the hydrogenation port. After the hydrogen system controller detects that X is greater than 0, it records the collection time of the hydrogen concentration sensor, that is, the time point when the concentration of the corresponding hydrogen refueling port is X, and this time point is T1; and continuously detects the concentration of the hydrogen refueling port Hydrogen concentration, after the concentration value detected at the hydrogen refueling port is reduced to 0, record the time at this time as T2, compare T2 with T1, compare the difference between T2 minus T1 at the set time T, if the difference is less than If the time T is set, it means that the failure is a failure of the hydrogenation port; otherwise, it is judged to be a leakage failure of the hydrogenation pipeline. Wherein, the set time is the time required for the complete leakage of hydrogen in the hydrogenation pipeline. If it is a failure of the hydrogenation port, after the hydrogenation is completed, the hydrogenation port will be closed, and no hydrogen will leak from the hydrogenation port, and the hydrogen leaked from the hydrogenation port will be released soon after the hydrogenation is completed. If it takes a long time for the hydrogen gas in the hydrogenation port to dissipate after the hydrogenation is completed, it means that it is not a failure of the hydrogenation port.
为了将检测结果快速地进行显示，及时告知操作人员或者司机，本发明中氢系统控制器还与整车控制器连接，整车控制器与氢系统控制器通过CAN总线连接，氢系统控制器将最终数据结果传送至整车控制器。整车控制器具备接受氢控制器信号，命令整车及各零部件动作的功能。一方面将氢系统控制器监测到的最终结果显示至仪表台，同时将数据上传至远程监控终端，用于司机和后台实时监控查询。另一方面，当接收到氢系统控制器传递的数据结果后后，在仪表台处报出“加氢口故障，请检修”提示。In order to quickly display the detection results and inform the operator or driver in time, the hydrogen system controller in the present invention is also connected to the vehicle controller, and the vehicle controller and the hydrogen system controller are connected through the CAN bus, and the hydrogen system controller will The final data results are sent to the vehicle controller. The vehicle controller has the function of receiving the signal of the hydrogen controller and commanding the operation of the vehicle and various parts. On the one hand, the final results monitored by the hydrogen system controller are displayed on the instrument panel, and at the same time, the data is uploaded to the remote monitoring terminal for real-time monitoring and query by the driver and the background. On the other hand, after receiving the data results transmitted by the hydrogen system controller, a prompt of "hydrogen refueling port failure, please repair" will be reported on the instrument panel.
通过本发明的检测系统，能够准确识别加氢口故障，保证车辆加氢安全，降低车辆加氢时的氢气泄漏风险，保障加氢车辆及加氢站的安全，同时无需人工对加氢口检测，降低了检测成本。Through the detection system of the present invention, it is possible to accurately identify the failure of the hydrogen refueling port, ensure the safety of vehicle hydrogen refueling, reduce the risk of hydrogen leakage during vehicle hydrogen refueling, and ensure the safety of hydrogen refueling vehicles and hydrogen refueling stations. At the same time, there is no need to manually detect the hydrogen refueling port , reducing the detection cost.
车辆实施例vehicle embodiment
本实施例的燃料电池车辆，包括整车控制器、燃料电池系统，燃料电池系统包括氢浓度传感器和氢系统控制器，氢浓度传感器用于检测加氢口处的氢气浓度，氢浓度传感器的输出端与氢系统控制器连接，氢系统控制器用于在加氢成功后，接收氢浓度传感器检测的加氢口处的氢气浓度值，判断浓度是否超过设定阈值；若超过设定阈值，则记录检测时间作为第一时间，并记录加氢口处的氢气浓度值降至0时的时间，作为第二时间；判断第一时间和第二时间的时间差值是小于设定时间阈值，若小于，则是加氢口故障，否则，是加氢管路出现故障。具体的实现方式已在系统实施例中进行详细说明，这里不再赘述。The fuel cell vehicle of this embodiment includes a vehicle controller and a fuel cell system. The fuel cell system includes a hydrogen concentration sensor and a hydrogen system controller. The hydrogen concentration sensor is used to detect the hydrogen gas concentration at the hydrogen filling port. The output of the hydrogen concentration sensor is The terminal is connected to the hydrogen system controller, and the hydrogen system controller is used to receive the hydrogen concentration value at the hydrogenation port detected by the hydrogen concentration sensor after the hydrogenation is successful, and judge whether the concentration exceeds the set threshold; if it exceeds the set threshold, record The detection time is taken as the first time, and the time when the hydrogen concentration value at the hydrogenation port drops to 0 is recorded as the second time; it is judged that the time difference between the first time and the second time is less than the set time threshold, if less than , it means that the hydrogenation port is faulty, otherwise, the hydrogenation pipeline is faulty. The specific implementation manner has been described in detail in the system embodiment, and will not be repeated here.
方法实施例method embodiment
本发明的检测方法在车辆加氢完毕后，判断是否加氢成功；在加氢成功后，检测加氢口处的氢气浓度值，判断浓度是否超过设定阈值；若超过设定阈值，则记录检测时间作为第一时间，并记录加氢口处的氢气浓度值降至0时的时间，作为第二时间；判断第一时间和第二时间的时间差值是小于设定时间阈值，若小于，则是加氢口故障，否则，是加氢管路出现故障。具体实现流程如图1所示，具体实现方式已在系统实施例中进行了详述，这里不再赘述。The detection method of the present invention judges whether the hydrogenation is successful after the hydrogenation of the vehicle is completed; after the hydrogenation is successful, detects the hydrogen concentration value at the hydrogenation port to judge whether the concentration exceeds the set threshold; if it exceeds the set threshold, record The detection time is taken as the first time, and the time when the hydrogen concentration value at the hydrogenation port drops to 0 is recorded as the second time; it is judged that the time difference between the first time and the second time is less than the set time threshold, if less than , it means that the hydrogenation port is faulty, otherwise, the hydrogenation pipeline is faulty. The specific implementation process is shown in FIG. 1 , and the specific implementation manner has been described in detail in the system embodiment, and will not be repeated here.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997601.4A CN115723634B (en) | 2021-08-27 | 2021-08-27 | A fuel cell vehicle and a hydrogen filling port fault detection method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997601.4A CN115723634B (en) | 2021-08-27 | 2021-08-27 | A fuel cell vehicle and a hydrogen filling port fault detection method and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115723634A true CN115723634A (en) | 2023-03-03 |
| CN115723634B CN115723634B (en) | 2025-05-30 |
Family
ID=85290412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110997601.4A Active CN115723634B (en) | 2021-08-27 | 2021-08-27 | A fuel cell vehicle and a hydrogen filling port fault detection method and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115723634B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040237631A1 (en) * | 2003-05-30 | 2004-12-02 | Cohen Joseph Perry | Fueling nozzle with integral molecular leak sensor |
| CN102810683A (en) * | 2011-06-02 | 2012-12-05 | 通用汽车环球科技运作有限责任公司 | Detecting Hydrogen Storage System Pressure Regulator Failure Using Hydrogen Sensors |
| CN110661018A (en) * | 2019-09-30 | 2020-01-07 | 沃尔特电子（苏州）有限公司 | Method and system for detecting hydrogen leakage position of hydrogen fuel cell vehicle |
| CN110774941A (en) * | 2019-11-06 | 2020-02-11 | 行云新能科技（深圳）有限公司 | Control method and control device for hydrogen fuel cell, and computer storage medium |
| CN210126439U (en) * | 2019-05-09 | 2020-03-06 | 深圳国氢新能源科技有限公司 | Hydrogenation interface and hydrogen detection circuit |
| CN111169288A (en) * | 2019-12-31 | 2020-05-19 | 潍柴动力股份有限公司 | Method, device and fuel cell vehicle for detecting hydrogen leakage from vehicle-mounted hydrogen supply system |
| CN112484935A (en) * | 2020-10-27 | 2021-03-12 | 潍柴动力股份有限公司 | Leak detection system and method for vehicle hydrogen filling |
| CN112918258A (en) * | 2021-02-26 | 2021-06-08 | 东风柳州汽车有限公司 | Vehicle control method, vehicle controller and vehicle hydrogenation monitoring system |
| CN113217805A (en) * | 2021-05-20 | 2021-08-06 | 一汽解放汽车有限公司 | Vehicle-mounted hydrogen storage device |
-
2021
- 2021-08-27 CN CN202110997601.4A patent/CN115723634B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040237631A1 (en) * | 2003-05-30 | 2004-12-02 | Cohen Joseph Perry | Fueling nozzle with integral molecular leak sensor |
| CN102810683A (en) * | 2011-06-02 | 2012-12-05 | 通用汽车环球科技运作有限责任公司 | Detecting Hydrogen Storage System Pressure Regulator Failure Using Hydrogen Sensors |
| CN210126439U (en) * | 2019-05-09 | 2020-03-06 | 深圳国氢新能源科技有限公司 | Hydrogenation interface and hydrogen detection circuit |
| CN110661018A (en) * | 2019-09-30 | 2020-01-07 | 沃尔特电子（苏州）有限公司 | Method and system for detecting hydrogen leakage position of hydrogen fuel cell vehicle |
| CN110774941A (en) * | 2019-11-06 | 2020-02-11 | 行云新能科技（深圳）有限公司 | Control method and control device for hydrogen fuel cell, and computer storage medium |
| CN111169288A (en) * | 2019-12-31 | 2020-05-19 | 潍柴动力股份有限公司 | Method, device and fuel cell vehicle for detecting hydrogen leakage from vehicle-mounted hydrogen supply system |
| CN112484935A (en) * | 2020-10-27 | 2021-03-12 | 潍柴动力股份有限公司 | Leak detection system and method for vehicle hydrogen filling |
| CN112918258A (en) * | 2021-02-26 | 2021-06-08 | 东风柳州汽车有限公司 | Vehicle control method, vehicle controller and vehicle hydrogenation monitoring system |
| CN113217805A (en) * | 2021-05-20 | 2021-08-06 | 一汽解放汽车有限公司 | Vehicle-mounted hydrogen storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115723634B (en) | 2025-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109282146B (en) | Device and method for detecting pipeline quality of hydrogen supply system of fuel cell | |
| CN109878485B (en) | Electric automobile service brake booster system, control strategy and fault diagnosis method thereof | |
| JP4353297B2 (en) | vehicle | |
| CN111442933B (en) | Fuel cell passenger car collision safety detection device and control method thereof | |
| CN104118420A (en) | Fault diagnosis method for blade electric vehicle vacuum assistance brake system | |
| CN105717404A (en) | Method and device for detecting insulation fault of power battery system | |
| CN105905092A (en) | Electronic vacuum pump control method and device | |
| CN111301381A (en) | A kind of plateau control method of electric vacuum pump for new energy vehicle | |
| CN110112443A (en) | A kind of fuel cell hydrogen system plus hydrogen method for diagnosing faults | |
| CN109540538B (en) | Failure analysis method for passenger car cooling system | |
| CN110137535B (en) | Vehicle-mounted hydrogenation control method and system | |
| CN115084594B (en) | Fuel cell diagnosis method and system based on knowledge graph | |
| CN115723634A (en) | Fault detection method and system for a fuel cell vehicle and its hydrogen refueling port | |
| CN109159780B (en) | Train integrity detection method and device based on train air duct pressure monitoring | |
| CN112483904B (en) | Pipeline monitoring equipment and monitoring method for hydrogen system | |
| CN212373340U (en) | Hydrogenation monitoring system and hydrogenation vehicle | |
| US20240055632A1 (en) | Device and Method for Checking the Inertization State of a Fuel Provision System | |
| CN204315044U (en) | A kind of natural gas used for automobile leakage warning device with failed storage | |
| CN103512704A (en) | Vehicle air pressure detection alarm device and method | |
| CN114373959B (en) | Fuel cell vehicle test method, device, equipment and medium | |
| CN111426457B (en) | Bottleneck valve fault diagnosis method, equipment, vehicle and storage medium | |
| CN113071320A (en) | High-voltage interlocking system of electric automobile | |
| CN112629775A (en) | Real-time monitoring equipment and monitoring method for pressure of oil supply pipeline | |
| CN205538256U (en) | Brake air pressure detection device | |
| CN216976522U (en) | Hydrogenation machine system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |