Multi-bottle group vehicle-mounted hydrogen storage intelligent monitoring and early warning system and method

Abstract

The present disclosure provides a multi-bottle group vehicle-mounted hydrogen storage intelligent monitoring and early warning system and method, which comprises a micro-deformation sensor for collecting micro-deformation of a multi-bottle group vehicle-mounted hydrogen storage system and converting the micro-deformation into a voltage signal; a bottle mouth combined valve comprising a temperature sensor and a pressure sensor for collecting pressure changes and temperature changes of the multi-bottle group vehicle-mounted hydrogen storage system; a multi-bottle group vehicle-mounted hydrogen storage system controller for receiving a deformation signal of the micro-deformation sensor and a pressure change signal and a temperature change signal sent by the pressure sensor and the temperature sensor integrated in the bottle mouth combined valve; the multi-bottle group vehicle-mounted hydrogen storage system can be monitored in real time to determine whether the number of one cycle is reached; by monitoring the fatigue state of the structure of the multi-bottle group vehicle-mounted hydrogen storage system, the service life of the multi-bottle group vehicle-mounted hydrogen storage system can be predicted in advance, and accidents can be avoided.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle safety control technology, specifically to a multi-cylinder on-board intelligent monitoring and early warning system and method for hydrogen storage. Background Technology

[0002] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0003] Hydrogen fuel cells are a new generation of green energy power systems that help solve problems such as energy crisis and environmental pollution. With technological advancements and other driving forces, hydrogen fuel cell vehicles have gradually achieved mass production.

[0004] Hydrogen fuel cell vehicles typically use high-pressure multi-cylinder on-board hydrogen storage systems at 35MPa or 70MPa. These systems are high-pressure and potentially explosive. Fatigue failure of the multi-cylinder on-board hydrogen storage system can pose a threat to the lives and property of passengers. Since Class A cylinders have a cycle life of 11,000 cycles and Class B cylinders have a cycle life of 7,500 cycles, it is essential to accurately detect the cycle life of the multi-cylinder on-board hydrogen storage system in order to provide early warnings about the lifespan of the hydrogen system. Summary of the Invention

[0005] To address the aforementioned issues, this disclosure proposes an intelligent monitoring and early warning system and method for multi-cylinder on-board hydrogen storage. The system's functions include: 1) accurately monitoring and providing early warnings regarding the number of cycles of multi-cylinder on-board hydrogen storage; and 2) comprehensively monitoring the lifespan fatigue state of the multi-cylinder on-board hydrogen storage system, monitoring the structural fatigue of the system, and improving the safety of multi-cylinder on-board hydrogen storage.

[0006] According to some embodiments, the present disclosure adopts the following technical solutions:

[0007] A multi-bottle pack vehicle-mounted intelligent monitoring and early warning system for hydrogen storage includes:

[0008] A micro-deformation sensor is configured to collect minute deformations in a multi-bottle on-board hydrogen storage system and convert these minute deformations into voltage signals.

[0009] The bottle neck combination valve, including a temperature sensor and a pressure sensor, is configured to collect pressure and temperature changes in a multi-bottle on-board hydrogen storage system.

[0010] The multi-cylinder on-board hydrogen storage system controller is connected to the micro-deformation sensor and the temperature and pressure sensors of the cylinder head combination valve. The multi-cylinder on-board hydrogen storage system controller is configured to receive the deformation signal from the micro-deformation sensor, the pressure change signal from the pressure sensor integrated in the cylinder head combination valve, and the temperature change signal from the temperature sensor.

[0011] Furthermore, the micro-deformation sensor is a pull-wire type, with one end of the pull wire rigidly fixed to the tail of the multi-cylinder group on-board hydrogen storage cylinder, and the other end connected to the signal transmitter.

[0012] Furthermore, the signal transmitter is positioned at the bottle opening, and the pull wire is flatly wrapped around the surface of the multi-bottle on-board hydrogen storage system at the bottle body position.

[0013] Furthermore, after receiving the signal, the controller of the multi-cylinder on-board hydrogen storage system compares the pressure, temperature, and deformation micro-voltage signal of the multi-cylinder on-board hydrogen storage system before and after the vehicle is powered off and powered on for hydrogen refueling, and performs calculation and analysis on the information received in real time and the information stored before the power outage.

[0014] Furthermore, the multi-bottle on-board hydrogen storage system controller is also connected to the vehicle controller, instrument module, and remote monitoring terminal via CAN bus to achieve information exchange.

[0015] Furthermore, the guy wire is secured by using a rigid conduit sleeve.

[0016] According to some embodiments, the present disclosure adopts the following technical solutions:

[0017] A method for intelligent monitoring and early warning of multi-cylinder on-board hydrogen storage includes:

[0018] Collect deformation information of multi-bottle on-board hydrogen storage system under various operating conditions;

[0019] The pressure and temperature changes of the gas inside the multi-bottle vehicle-mounted hydrogen storage system, which integrates the bottle-mouth combination valve, are transmitted to the controller of the multi-bottle vehicle-mounted hydrogen storage system.

[0020] The controller of the multi-cylinder on-board hydrogen storage system calculates and analyzes the feedback information on deformation, pressure, and temperature changes, and determines the fatigue state of the multi-cylinder on-board hydrogen storage system in conjunction with the vehicle's hydrogen refueling status.

[0021] Furthermore, before refueling the vehicle with hydrogen, the vehicle needs to be powered off, and the controller of the multi-cylinder on-board hydrogen storage system saves the high pressure and temperature values ​​of the multi-cylinder on-board hydrogen storage system from the previous moment.

[0022] Furthermore, after the vehicle is refueled with hydrogen and powered on, the controller of the multi-cylinder on-board hydrogen storage system reads the high-pressure and temperature values ​​stored in the multi-cylinder on-board hydrogen storage system at the previous moment, and broadcasts the current high-pressure and temperature values ​​of the multi-cylinder on-board hydrogen storage system to the outside world via the CAN bus.

[0023] Furthermore, set the available cycle limit number; if it is determined that the pressure or temperature of the multi-bottle on-board hydrogen storage system changes before and after hydrogen refueling and causes slight deformation, compare it with the set available cycle limit number. If the near-accessible cycle limit number has not been reached, the available cycle count can be incremented by 1.

[0024] If the number of cycles nearing the usable limit is reached, the controller of the multi-cylinder on-board hydrogen storage system will issue an alarm and stop the hydrogen supply.

[0025] Compared with the prior art, the beneficial effects of this disclosure are as follows:

[0026] This disclosure employs multiple micro-deformation sensors to monitor the deformation state of a multi-cylinder on-board hydrogen storage system under various operating conditions in real time. Through signal amplification, the micro-deformation state of the multi-cylinder on-board hydrogen storage system can be monitored in real time to determine whether a cycle has been reached. By monitoring the structural fatigue state of the multi-cylinder on-board hydrogen storage system, the lifespan of the multi-cylinder on-board hydrogen storage system can be predicted in advance to avoid accidents. The fatigue information of the multi-cylinder on-board hydrogen storage system can be uploaded to a remote monitoring platform to achieve information sharing.

[0027] This disclosure employs a controller for a multi-cylinder on-board hydrogen storage system. By receiving deformation information, gas pressure information, and gas temperature information from the multi-cylinder on-board hydrogen storage system, the controller comprehensively analyzes whether the multi-cylinder on-board hydrogen storage system has reached the fatigue damage limit state and executes multiple controls, enabling information sharing on a remote monitoring platform. Attached Figure Description

[0028] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0029] Figure 1 This is a schematic diagram of the structure of a multi-bottle pack vehicle-mounted hydrogen storage system monitoring and early warning system according to an embodiment of this disclosure; Detailed implementation method:

[0030] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this disclosure. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Example 1

[0034] One embodiment of this disclosure provides a multi-cylinder on-board intelligent monitoring and early warning system for hydrogen storage, such as... Figure 1 As shown, it includes a multi-cylinder on-board hydrogen storage system controller (HMS), a micro-deformation sensor, a cylinder port combination valve, and a multi-cylinder on-board hydrogen storage system.

[0035] A micro-deformation sensor is configured to collect minute deformations in a multi-bottle on-board hydrogen storage system and convert these minute deformations into voltage signals.

[0036] The bottle neck combination valve, including a temperature sensor and a pressure sensor, is configured to collect pressure and temperature changes in a multi-bottle on-board hydrogen storage system.

[0037] The multi-cylinder on-board hydrogen storage system controller is connected to the micro-deformation sensor and the temperature and pressure sensors of the cylinder head combination valve. The multi-cylinder on-board hydrogen storage system controller is configured to receive the deformation signal from the micro-deformation sensor, the pressure change signal from the pressure sensor integrated in the cylinder head combination valve, and the temperature change signal from the temperature sensor.

[0038] The aforementioned micro-deformation sensor is a pull-wire type, with one end of the pull wire rigidly fixed to the tail of the multi-cylinder vehicle-mounted hydrogen storage cylinder, and the other end connected to a signal transmitter. The signal transmitter is housed inside the micro-deformation sensor and converts the minute deformation detected by the sensor into a voltage signal. This voltage signal is fed back to the multi-cylinder vehicle-mounted hydrogen storage system controller via a wiring harness. The controller makes a judgment based on the received signal. The micro-deformation sensor is positioned at the cylinder opening, and the pull wire is flatly wrapped around the surface of the multi-cylinder vehicle-mounted hydrogen storage system at the cylinder body. Multiple micro-deformation sensors monitor minute deformations in the multi-cylinder vehicle-mounted hydrogen storage system, converting these minute deformations into voltage signals, which are then amplified and sent to the multi-cylinder vehicle-mounted hydrogen storage system controller.

[0039] Furthermore, multiple micro-deformation sensors are used to monitor minute deformations in the multi-cylinder on-board hydrogen storage system and transmit these deformations to the system controller. The micro-deformation sensors are pull-wire type, with one end rigidly fixed to the tail of the cylinder and the other end connected to a signal transmitter positioned at the cylinder opening. The pull-wire of the micro-deformation sensor at the cylinder body is flatly wrapped around the surface of the multi-cylinder on-board hydrogen storage system. The fixing of the pull-wire should not affect the measurement of minute deformations in the multi-cylinder on-board hydrogen storage system; it is recommended to use a rigid tubing over the pull-wire for fixation.

[0040] The multi-cylinder on-board hydrogen storage system controller is the core component of the system. Its main functions include storing hydrogen during power outages and reading pressure values ​​from the multi-cylinder on-board hydrogen storage system upon power-on. It receives deformation signals from micro-deformation sensors and pressure and temperature signals from the cylinder valve combination. By calculating and analyzing the cyclic count of the multi-cylinder on-board hydrogen storage system structure, it provides early warnings for system safety and effectiveness. Furthermore, the on-board hydrogen storage system controller (HMS) can communicate in real-time with the vehicle control unit (VCU), instrument module, and remote monitoring terminal via a CAN bus network, enabling information exchange. The instrument module includes an on-board display screen and a corresponding control system. Information exchange between controllers is achieved through the CAN network, and the display screen can be used to display fault codes, text alarms, and audible and visual alarms.

[0041] The controller of the multi-cylinder vehicle-mounted hydrogen storage system receives pressure values ​​from the high-pressure sensor, temperature values ​​from the temperature sensor, and voltage signals from the micro-deformation sensor of the multi-cylinder vehicle-mounted hydrogen storage system. It compares the pressure, temperature, and micro-voltage signals of the multi-cylinder vehicle-mounted hydrogen storage system before and after power-off and power-on hydrogen refueling. It then calculates and analyzes the information received in real time and the information stored before power-off, thus making a judgment on the values ​​before and after power-off.

[0042] The multi-cylinder on-board hydrogen storage system controller also connects to the vehicle controller, instrument module, and remote monitoring terminal via a CAN bus to achieve information exchange. Information from the multi-cylinder on-board hydrogen storage system controller is transmitted via the vehicle's CAN bus, uploaded to the CAN bus, and broadcast externally via the internal CAN. Information can also be uploaded to the data monitoring platform via a remote terminal. Simultaneously, the program sets the number of cycles for the hydrogen cylinder group according to national standards. When the maximum number of cycles is approached, the instrument panel issues an early warning, displaying text and flashing lights to alert the driver. The remote data platform can also view this information promptly.

[0043] Preferably, C language storage and calling functions are written using the TASKing software platform to store and save data before each power outage of the vehicle, and run the calling function to read the saved values ​​each time the power is restored, and compare them with the parameter values ​​broadcast in real time on the CAN bus.

[0044] Preferably, the VCU, HMS, remote monitoring terminal, etc. are connected on the same bus for CAN communication and information exchange.

[0045] Example 2

[0046] One embodiment of this disclosure provides a method for intelligent monitoring and early warning of multi-cylinder on-board hydrogen storage, including:

[0047] Collect deformation information of multi-bottle on-board hydrogen storage system under various operating conditions;

[0048] The pressure and temperature changes of the gas inside the multi-bottle vehicle-mounted hydrogen storage system, which integrates the bottle-mouth combination valve, are transmitted to the controller of the multi-bottle vehicle-mounted hydrogen storage system.

[0049] The controller of the multi-cylinder on-board hydrogen storage system calculates and analyzes the feedback information on deformation, pressure, and temperature changes, and determines the fatigue state of the multi-cylinder on-board hydrogen storage system in conjunction with the vehicle's hydrogen refueling status.

[0050] Furthermore, before refueling the vehicle with hydrogen, the vehicle needs to be powered off, and the controller of the multi-cylinder on-board hydrogen storage system saves the high pressure and temperature values ​​of the multi-cylinder on-board hydrogen storage system from the previous moment.

[0051] After the vehicle is refueled with hydrogen and powered on, the controller of the multi-cylinder on-board hydrogen storage system reads the high pressure and temperature values ​​stored in the multi-cylinder on-board hydrogen storage system at the previous moment, and broadcasts the current high pressure and temperature values ​​of the multi-cylinder on-board hydrogen storage system to the outside world via the CAN bus.

[0052] Set the available cycle limit; if it is determined that the pressure or temperature of the multi-bottle on-board hydrogen storage system changes before and after hydrogen refueling and causes slight deformation, compare it with the set available cycle limit. If the limit is not reached, increment the cycle count by 1.

[0053] If the near-available cycle limit is reached, the multi-cylinder on-board hydrogen storage system controller will issue an alarm and stop the hydrogen supply.

[0054] Specifically, based on the intelligent monitoring and early warning system for multi-bottle pack vehicle-mounted hydrogen storage described in Example 1, the system includes a micro-deformation sensor, which is configured to collect the micro-deformation of the multi-bottle pack vehicle-mounted hydrogen storage system and convert the micro-deformation into a voltage signal.

[0055] The bottle neck combination valve, including a temperature sensor and a pressure sensor, is configured to collect pressure and temperature changes in a multi-bottle on-board hydrogen storage system.

[0056] The multi-cylinder on-board hydrogen storage system controller is connected to the micro-deformation sensor and the temperature and pressure sensors of the cylinder head combination valve. The multi-cylinder on-board hydrogen storage system controller is configured to receive the deformation signal from the micro-deformation sensor, the pressure change signal from the pressure sensor integrated in the cylinder head combination valve, and the temperature change signal from the temperature sensor.

[0057] As one embodiment, the process of the multi-bottle pack on-board intelligent monitoring method for hydrogen storage disclosed herein is as follows:

[0058] The deformation information of the multi-cylinder on-board hydrogen storage system under various operating conditions is collected by a micro-deformation sensor, the pressure information of the gas inside the multi-cylinder on-board hydrogen storage system is monitored by a pressure sensor integrated with the cylinder port combination valve, and the gas temperature information is monitored by a temperature sensor and transmitted to the controller of the multi-cylinder on-board hydrogen storage system.

[0059] The controller of the multi-cylinder on-board hydrogen storage system calculates and analyzes the feedback information such as deformation, pressure, and temperature, and, in conjunction with the vehicle's hydrogen refueling status, determines the fatigue state of the multi-cylinder on-board hydrogen storage system.

[0060] Before refueling the vehicle with hydrogen, the vehicle needs to be powered off. At this time, the multi-cylinder on-board hydrogen storage system controller saves the high-pressure and temperature values ​​of the hydrogen storage system from the previous moment. After refueling, the vehicle is powered on. At this time, the multi-cylinder on-board hydrogen storage system controller 1 reads the saved high-pressure and temperature values ​​of the hydrogen storage system from the previous moment and broadcasts the current high-pressure and temperature values ​​of the hydrogen storage system via the CAN bus. If the pressure or temperature of the multi-cylinder on-board hydrogen storage system changes before and after refueling and undergoes slight deformation, it is compared with the number of usable cycles specified by the national standard. If the number of usable cycles has not reached the limit, the usable cycle count is incremented by 1. If the limit is reached, the HMS issues an alarm value. The VCU receives the HMS alarm value and closes all cylinder valves and the main valve of the hydrogen system, stopping the hydrogen supply. The instrument module receives the HMS alarm value, the lights flash, and a clear fault font is displayed to remind the driver to perform maintenance and inspection. The controller of the multi-cylinder on-board hydrogen storage system issues an emergency command. Information such as the system's serial number and fatigue damage time is uploaded to the remote monitoring platform via a remote monitoring terminal. This alerts the user, vehicle manufacturer, and pressure vessel installation and inspection units that the multi-cylinder on-board hydrogen storage system needs to be replaced to prevent the reuse of faulty systems. The above procedure is repeated before and after each hydrogen refueling.

[0061] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0062] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0063] While the specific embodiments of this disclosure have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this disclosure. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this disclosure are still within the scope of protection of this disclosure.

Claims

1. A multi-bottle group vehicle-mounted hydrogen storage intelligent monitoring and early warning system, characterized in that, The application comprises: a micro-deformation sensor configured to collect the micro-deformation of the multi-bottle group vehicle-mounted hydrogen storage system and convert the micro-deformation into a voltage signal; a bottle mouth combination valve comprising a temperature sensor and a pressure sensor configured to collect the pressure change and temperature change of the multi-bottle group vehicle-mounted hydrogen storage system; a multi-bottle group vehicle-mounted hydrogen storage system controller connected to the micro-deformation sensor and the temperature sensor and pressure sensor of the bottle mouth combination valve, the multi-bottle group vehicle-mounted hydrogen storage system controller being configured to receive the deformation signal of the micro-deformation sensor and the pressure change signal and temperature change signal sent by the integrated pressure sensor and temperature sensor of the bottle mouth combination valve; after receiving the signals, the multi-bottle group vehicle-mounted hydrogen storage system controller compares the pressure, temperature and micro-voltage signal of the deformation of the multi-bottle group vehicle-mounted hydrogen storage system before and after the vehicle is powered off and powered on for hydrogen filling, and calculates and analyzes the real-time received information and the stored information before power off; a limit cycle number is set; if it is judged that the pressure changes or the temperature changes and micro-deformation occur before and after hydrogen filling of the multi-bottle group vehicle-mounted hydrogen storage system, the limit cycle number is compared, and if the limit cycle number is not reached, the available cycle count is increased by 1; if the limit cycle number is reached, the multi-bottle group vehicle-mounted hydrogen storage system controller sends an alarm value and stops hydrogen supply.

2. The multi-bottle set vehicle-mounted hydrogen storage intelligent monitoring and early warning system of claim 1, wherein, The micro-deformation sensor adopts a stay wire type, one end of the stay wire is rigidly fixed at the position of the tail of the multi-bottle group vehicle-mounted hydrogen storage bottle, and the other end is connected to a signal transmitter.

3. The multi-bottle set vehicle-mounted hydrogen storage intelligent monitoring and early warning system of claim 2, wherein, The signal transmitter is arranged at the position of the bottle mouth, and the stay wire is flatly wrapped on the surface of the multi-bottle group vehicle-mounted hydrogen storage system at the position of the bottle body.

4. The multi-bottle set vehicle-mounted hydrogen storage intelligent monitoring and early warning system of claim 1, wherein, The multi-bottle group vehicle-mounted hydrogen storage system controller is also connected to the vehicle controller, instrument module and remote monitoring terminal through a CAN bus to realize information interaction.

5. The multi-bottle set vehicle-mounted hydrogen storage intelligent monitoring and early warning system of claim 1, wherein, The stay wire is fixed by adopting a hard pipeline mode of a stay wire jacket.

6. A multi-bottle group vehicle-mounted hydrogen storage intelligent monitoring and early warning method, using the multi-bottle group vehicle-mounted hydrogen storage intelligent monitoring and early warning system of any one of claims 1-5, characterized in that, The application comprises: collecting the deformation information of the multi-bottle group vehicle-mounted hydrogen storage system under various working conditions; transmitting the pressure change information and temperature change information of the gas in the multi-bottle group vehicle-mounted hydrogen storage system integrated with the bottle mouth combination valve to the multi-bottle group vehicle-mounted hydrogen storage system controller; the multi-bottle group vehicle-mounted hydrogen storage system controller calculates and analyzes the feedback deformation, pressure and temperature change information, and determines the fatigue state of the multi-bottle group vehicle-mounted hydrogen storage system in combination with the hydrogen filling condition of the vehicle.

7. The intelligent monitoring and early warning method for multi-cylinder vehicle-mounted hydrogen storage as described in claim 6, characterized in that, Before hydrogen filling of the vehicle, the vehicle needs to be powered off, and the multi-bottle group vehicle-mounted hydrogen storage system controller saves the high-pressure pressure value and temperature value of the multi-bottle group vehicle-mounted hydrogen storage system at the last moment.

8. The method of claim 6, wherein the method comprises: After hydrogen filling of the vehicle, the vehicle is powered on, at this time, the multi-bottle group vehicle-mounted hydrogen storage system controller reads the high-pressure pressure value and temperature value saved by the multi-bottle group vehicle-mounted hydrogen storage system at the last moment, and broadcasts the high-pressure pressure value and temperature value of the multi-bottle group vehicle-mounted hydrogen storage system at the current moment through the CAN bus.

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