An online control system for a hydrogen circulation pump, a fault detection method, and a vehicle

Abstract

This invention relates to the field of online control technology, specifically to an online control system for a hydrogen circulation pump, a fault detection method, and a vehicle. The invention provides an online control and fault detection method for a hydrogen circulation pump, offering crucial support for online monitoring of the pump. Through online monitoring and online fault handling, fault diagnosis time is significantly reduced, and fault handling speed is improved. Furthermore, since many faults are handled through online control and system upgrades, labor costs are saved. The invention also provides various fault resolution measures, facilitating the analysis and resolution of circulation pump faults.

Description

Technical Field

[0001] This invention relates to the field of online control technology, specifically to an online control system for a hydrogen circulation pump, a fault detection method, and a vehicle. Background Technology

[0002] A fuel cell is a device that generates water by an electrochemical reaction between hydrogen and oxygen while simultaneously outputting electrical energy. It has advantages such as high power generation efficiency, low environmental pollution, high specific energy, and low noise, and has received widespread attention in the field of new energy and has good application prospects in the automotive industry.

[0003] As a core component of fuel cells, the hydrogen circulation pump is crucial. Monitoring its operating status in real time, acquiring operational data, and conducting online fault handling and detection are urgent problems to be solved in the development of current technology. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an online control system for hydrogen circulation pumps, a fault detection method, and a vehicle for online monitoring, online control, and online fault detection and handling of hydrogen circulation pumps.

[0005] To solve the above-mentioned technical problems, the first technical solution adopted by the present invention is as follows:

[0006] An online control system for a hydrogen circulation pump includes a local terminal and a server;

[0007] The local terminal includes an FCU, an on-board terminal, an ambient temperature sensor, and a sensor assembly, the sensor assembly being connected to the hydrogen circulation pump;

[0008] The hydrogen circulation pump, sensor assembly, vehicle terminal, and ambient temperature sensor are distributed and electrically connected to the FCU;

[0009] The server includes a data processor, a data receiver, and a data transmitter. The data processor is electrically connected to the data receiver and the data transmitter, respectively. The data receiver and the data transmitter are respectively connected to the vehicle-mounted terminal for data transmission.

[0010] Preferably, the sensor assembly includes a temperature sensor, a speed sensor, a voltage sensor, a current sensor, and a power sensor.

[0011] To solve the above-mentioned technical problems, the second technical solution adopted by the present invention is as follows:

[0012] A method for detecting faults in a hydrogen circulation pump, including

[0013] S1, the hydrogen circulation pump feeds back operating data to the FCU;

[0014] S2, FCU determines the working status of the hydrogen circulation pump, takes corresponding measures, and transmits the operating data to the vehicle terminal;

[0015] S3, the vehicle terminal will transmit operational data to the server;

[0016] S4: The server determines the type of fault based on the operational data and decides whether to handle it online or manually.

[0017] Preferably, the operational data transmitted by the vehicle terminal to the server includes fault data;

[0018] S4 determines the fault type based on the fault data in the operation data and decides whether to handle it online or manually.

[0019] Preferably, S2 further includes:

[0020] S201, FCU acquires hydrogen circulation pump operating data;

[0021] S202, the FCU compares the acquired operating data with the calibrated preset value data to determine whether the hydrogen circulation pump is operating normally;

[0022] S203, if the judgment is normal, return to S201; if the judgment is abnormal, execute S204.

[0023] S204, determine whether this fault can be eliminated by controlling the circulating pump;

[0024] If S205 is true, then execute S206; otherwise, execute S207.

[0025] S206, the FCU controls the circulating pump to perform corresponding operations to clear the fault;

[0026] S207, uploads operational data to the vehicle terminal.

[0027] Preferably, S204 further includes: determining whether the fault can be eliminated by controlling the circulating pump; if the same fault is determined more than 3 times consecutively, then S205 directly determines it as no.

[0028] Preferably, S202 includes: continuously monitoring the current, voltage, power, speed, and temperature of the hydrogen circulation pump; when any one of the following conditions is met, the FCU determines that the hydrogen circulation pump is malfunctioning.

[0029] Preferably, the corresponding measures taken in S2 include fault handling, which includes:

[0030] Hydrogen circulation pump icing fault handling: When the ambient temperature reported to the FCU is below 0℃ and the engine fails to start on the first attempt, and the hydrogen circulation pump does not provide normal data feedback, the FCU controls the hydrogen circulation pump to heat up and simultaneously controls the hydrogen circulation pump shaft to rotate alternately in both directions to break the ice. After N minutes, the engine is started again. If successful, the ice breaking is considered successful; if it fails, proceed according to step S204. After 3 attempts, upload the data to the vehicle terminal, which then feeds back the data to the data processor to arrange manual repair according to the data receiving and processing procedure.

[0031] Or, for high-temperature fault handling of hydrogen circulation pump: When the temperature sensor detects that the temperature inside the hydrogen circulation pump is higher than 150℃, the FCU controls the hydrogen circulation pump to reduce its speed by 100 rpm until it idles; if the temperature drops below 125℃ during the reduction process, the reduction stops and normal operation resumes; if this fault occurs more than 3 times after normal operation, follow the procedures in S204-S207.

[0032] Or, handle abnormal speed faults: if the speed exceeds or falls below the predetermined speed by 500 rpm, prioritize monitoring of the hydrogen circulation pump. If there are no other abnormalities, an online upgrade can be performed, and fault information can be temporarily blocked until manual handling is available.

[0033] Preferably, S4 further includes: the server acquiring remote operation data, detecting the operation data, and selecting the corresponding online processing or manual processing method based on the detection result.

[0034] To solve the above-mentioned technical problems, the third technical solution adopted by the present invention is as follows:

[0035] A vehicle including a local terminal of the aforementioned hydrogen circulation pump online control system.

[0036] The beneficial effects of this invention are as follows: This invention provides an online control and fault detection method for hydrogen circulation pumps, which provides important support for online monitoring of hydrogen circulation pumps; through online monitoring and online fault handling, the fault judgment time is greatly reduced and the fault handling speed is improved. At the same time, since many faults are handled through online control and system upgrades, labor costs are saved; and multiple fault resolution measures are provided, which is beneficial to the analysis and resolution of circulation pump faults. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the local terminal structure of an online control system for a hydrogen circulation pump according to a specific embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the server structure of an online control system for a hydrogen circulation pump according to a specific embodiment of the present invention;

[0039] Figure 3 This is a flowchart illustrating a hydrogen circulation pump fault detection method according to a specific embodiment two of the present invention.

[0040] Figure 4 This is a schematic diagram of the FCU processing flow of a hydrogen circulation pump fault detection method according to a specific embodiment 2 of the present invention;

[0041] Figure 5 This is a schematic diagram of the server processing flow of a hydrogen circulation pump fault detection method according to a specific embodiment 2 of the present invention;

[0042] Labeling Explanation: 1. FCU; 2. Hydrogen Circulation Pump; 201. Temperature Sensor; 202. Speed ​​Sensor; 203. Heating Resistance; 3. Vehicle Terminal; 4. Ambient Temperature Sensor; 5. Data Processor; 6. Data Receiver; 7. Data Transmitter. Detailed Implementation

[0043] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0044] Example 1

[0045] Please refer to Figure 1 as well as Figure 2 An online control system for a hydrogen circulation pump, comprising a local terminal and a server;

[0046] The local terminal includes FCU1, vehicle terminal 3, heating resistor 203, ambient temperature sensor 4 and sensor assembly, which is connected to hydrogen circulation pump 2.

[0047] The heating resistor 203, hydrogen circulation pump 2, sensor assembly, vehicle terminal 3, and ambient temperature sensor 4 are distributed and electrically connected to FCU1.

[0048] The server includes a data processor 5, a data receiver 6, and a data transmitter 7. The data processor 5 is electrically connected to the data receiver 6 and the data transmitter 7, respectively. The data receiver 6 and the data transmitter 7 are respectively connected to the vehicle terminal 3 for data transmission.

[0049] The sensor assembly includes a temperature sensor 201, a speed sensor 202, a voltage sensor, a current sensor, and a power sensor.

[0050] Work process:

[0051] The data generated by the hydrogen circulation pump 2 during operation, including temperature (temperature sensor 201), speed (speed sensor 202), current (current sensor), and power (power sensor), are transmitted in real time to the FCU1 (fuel cell engine controller) for analysis and processing. Simultaneously, the FCU1 transmits the operating data generated by the hydrogen circulation pump 2, including the relevant control measures taken by the FCU1, to the on-board terminal 3 in real time.

[0052] The working data collected by the vehicle terminal 3 is transmitted to the data processor 5 in real time through the data receiver 6, and the relevant control measures are fed back to the vehicle terminal 3 through the data transmitter 7, which is then used by the FCU1 to perform relevant control operations on the hydrogen circulation pump 2.

[0053] Example 2

[0054] Reference Figure 3 A method for detecting faults in a hydrogen circulation pump, comprising:

[0055] S1, hydrogen circulation pump 2 feeds back operating data to FCU1;

[0056] S2, FCU1 determines the working status of hydrogen circulation pump 2, takes corresponding measures, and transmits operating data to vehicle terminal 3;

[0057] S3, the vehicle terminal 3 transmits the operation data to the server, and the operation data includes fault data;

[0058] S4 determines the fault type based on the fault data in the operation data and decides whether to handle it online (online upgrade / OTA or execute other instructions) or manually (manual repair).

[0059] Reference Figure 4 S2 further includes:

[0060] S201, FCU1 acquires the operating data of hydrogen circulation pump 2, including speed, operating current, operating temperature, etc.

[0061] S202, FCU1 compares the acquired operating data with the calibrated preset value data to determine whether the hydrogen circulation pump 2 is operating normally;

[0062] S203, if the judgment is normal, return to S201; if the judgment is abnormal, execute S204.

[0063] S204, determine whether this fault can be eliminated by controlling the circulating pump. If the same fault is determined more than 3 times in a row, execute S205 to directly determine no.

[0064] If S205 is true, then execute S206; otherwise, execute S207.

[0065] S206, FCU1 controls the circulating pump to perform corresponding operations to clear the fault;

[0066] S207, uploads operational data to vehicle terminal 3.

[0067] Reference Figure 5 S4 further includes: the server acquiring remote operation data, detecting the operation data, and selecting the corresponding online processing or manual processing method based on the detection results.

[0068] Example 3

[0069] A vehicle includes a local terminal of the hydrogen circulation pump online control system described in Embodiment 1.

[0070] Example 4

[0071] A vehicle includes the online control system for the hydrogen circulation pump described in Embodiment 1.

[0072] The status data of the hydrogen circulation pump 2 in the above embodiment 1 or embodiment 2 during operation is fed back to FCU1 in real time. FCU1 can perform the following data monitoring and fault handling based on the data detection.

[0073] The data monitoring includes:

[0074] The system continuously monitors the current, voltage, power, speed, and temperature of the hydrogen circulation pump. If any one of the following conditions is met: current exceeding 20A, voltage exceeding 80V, power exceeding 1.5kW, or internal temperature exceeding 150℃, FCU1 determines that the hydrogen circulation pump 2 is malfunctioning. In Example 2, fault handling and data transmission can be performed according to the established procedure.

[0075] Troubleshooting includes:

[0076] Handling icing faults in hydrogen circulation pump 2: When the ambient temperature sensor 4 reports a temperature below 0°C to FCU1 and the engine fails to start on the first attempt, hydrogen circulation pump 2 will not provide normal data feedback. In this case, FCU1 controls the heating resistor 203 on hydrogen circulation pump 2 to heat it, while simultaneously controlling the shaft of hydrogen circulation pump 2 to rotate alternately in both directions to break the ice. This process continues for a few minutes. The engine is then restarted. If successful, the ice breaking is considered successful; otherwise, step S204 is followed. After three attempts, the data is uploaded to the vehicle terminal 3, which then feeds back the data to the data processor 5, which arranges for manual repair according to the data receiving and processing procedure.

[0077] High-Temperature Fault Handling for Hydrogen Circulation Pump 2: When the temperature sensor 201 detects that the temperature inside hydrogen circulation pump 2 is higher than 150℃, FCU1 controls hydrogen circulation pump 2 to reduce its speed by 100 rpm until it idles. If the temperature drops below 125℃ during the reduction process, the reduction stops and normal operation resumes. If this fault occurs more than 3 times after normal operation resumes, proceed according to S204-S207.

[0078] Troubleshooting abnormal speed: If the speed exceeds or falls below the preset speed by 500 rpm, the circulating pump should be closely monitored. If there are no other abnormalities, an online upgrade can be performed to temporarily block fault information and wait for manual handling.

[0079] The faults that this invention can monitor and resolve include, but are not limited to, the above-mentioned types.

[0080] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for detecting faults in a hydrogen circulation pump, comprising an online control system for the hydrogen circulation pump, wherein the online control system for the hydrogen circulation pump includes a local terminal and a server; The local terminal includes an FCU, an on-board terminal, a heating resistor, an ambient temperature sensor, and a sensor assembly, which is connected to the hydrogen circulation pump. Heating resistors, hydrogen circulation pumps, sensor assemblies, vehicle terminals, and ambient temperature sensors are distributed and electrically connected to the FCU; The server includes a data processor, a data receiver, and a data transmitter. The data processor is electrically connected to the data receiver and the data transmitter, respectively. The data receiver and the data transmitter are respectively connected to the vehicle terminal for data transmission. The sensor assembly includes a temperature sensor, a speed sensor, a voltage sensor, a current sensor, and a power sensor, characterized in that... include S1, the hydrogen circulation pump feeds back operating data to the FCU; S2, FCU determines the working status of the hydrogen circulation pump, takes corresponding measures, and transmits the operating data to the vehicle terminal; S3, the vehicle terminal will transmit operational data to the server; S4: The server determines the type of fault based on the operational data and decides whether to handle it online or manually. S2 further includes: S201, FCU acquires hydrogen circulation pump operating data; S202, the FCU compares the acquired operating data with the calibrated preset value data to determine whether the hydrogen circulation pump is operating normally; S203, if the judgment is normal, return to S201; if the judgment is abnormal, execute S204. S204, determine whether this fault can be eliminated by controlling the circulating pump; If S205 is true, then execute S206; otherwise, execute S207. S206, the FCU controls the circulating pump to perform corresponding operations to clear the fault; S207, uploads operational data to the vehicle terminal; The S202 includes: continuously monitoring the current, voltage, power, speed, and temperature of the hydrogen circulation pump; when any one of the following conditions is met, such as current exceeding 20A, voltage exceeding 80V, power exceeding 1.5kW, or temperature inside the circulation pump exceeding 150℃, the FCU determines that the hydrogen circulation pump is malfunctioning. The corresponding measures taken in S2 include fault handling, which includes: Hydrogen circulation pump icing fault handling: When the ambient temperature reported to the FCU is below 0℃ and the engine fails to start on the first attempt, and the hydrogen circulation pump does not provide normal data feedback, the FCU controls the hydrogen circulation pump to heat up and simultaneously controls the hydrogen circulation pump shaft to rotate alternately in both directions to break the ice. After N minutes, the engine is started again. If successful, the ice breaking is considered successful; if it fails, proceed according to step S204. After 3 attempts, upload the data to the vehicle terminal, which then feeds back the data to the data processor to arrange manual repair according to the data receiving and processing procedure. Or, for high-temperature fault handling of hydrogen circulation pump: When the temperature sensor detects that the temperature inside the hydrogen circulation pump is higher than 150℃, the FCU controls the hydrogen circulation pump to reduce its speed by 100 rpm until it idles; if the temperature drops below 125℃ during the reduction process, the reduction stops and normal operation resumes; if this fault occurs more than 3 times after normal operation, follow the procedures in S204-S207. Or, handle abnormal speed faults: if the speed exceeds or falls below the predetermined speed by 500 rpm, prioritize monitoring of the hydrogen circulation pump. If there are no other abnormalities, an online upgrade can be performed, and fault information can be temporarily blocked until manual handling is available.

2. The hydrogen circulation pump fault detection method according to claim 1, characterized in that, The operational data transmitted by the vehicle terminal to the server includes fault data. S4 determines the fault type based on the fault data in the operation data and decides whether to handle it online or manually.

3. The hydrogen circulation pump fault detection method according to claim 1, characterized in that, S204 further includes: determining whether the fault can be eliminated by controlling the circulating pump. If the same fault is determined more than 3 times in a row, then S205 directly determines it as no.

4. The hydrogen circulation pump fault detection method according to claim 1, characterized in that, S4 further includes: the server acquiring remote operation data, detecting the operation data, and selecting the corresponding online processing or manual processing method based on the detection results.

5. A vehicle, characterized in that, Includes the local terminal of the hydrogen circulation pump online control system as described in claim 1.

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