Hydrogen pressure regulator, engine and vehicle

Abstract

The utility model relates to a hydrogen pressure regulator, an engine and a vehicle in the technical field of engines, the hydrogen pressure regulator comprises a body, the body is provided with a channel used for conveying hydrogen, a gas inlet is formed in one end of the channel, and a gas outlet is formed in the other end of the channel; the proportioning valve is connected to the body, is arranged at the channel and is used for adjusting the pressure of hydrogen entering the engine; the cut-off valve is connected to the body, is arranged at the channel and is used for cutting off the supply of hydrogen to the engine; the hydrogen pressure and temperature sensor is connected to the body, is arranged at the channel and is used for measuring the pressure level and temperature of hydrogen; and the control module is arranged on the body and is in signal connection with the proportioning valve, the stop valve and the hydrogen pressure and temperature sensor, and the control module is in signal connection with a controller of an engine electrical system. According to the hydrogen pressure regulator, the requirement for the ECU can be lowered, and the ECU can drive the hydrogen pressure regulator conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of engines, and particularly to a hydrogen pressure regulator, an engine, and a vehicle. Background Art

[0002] A hydrogen fuel engine uses hydrogen as fuel and directly injects it into the combustion chamber of the engine through a hydrogen injector. In a hydrogen fuel engine, a hydrogen pressure regulator is used to manage and control the pressure of hydrogen entering the engine. It can regulate the pressure of hydrogen entering the hydrogen injector to meet the pressure requirements of the injection system and achieve transient response requirements under different working conditions. However, the existing hydrogen pressure regulators require the controller (ECU) of the engine electrical system to directly control a multi-way proportional valve, a hydrogen cut-off valve, and collect hydrogen pressure and temperature signals. In particular, the proportional valve requires not only a PWM signal but also a closed-loop control of current. Therefore, the control system is complex, has high requirements for the ECU, cannot meet the needs of the existing product ECU, and cannot adapt to ECU products of different platforms. Summary of the Utility Model

[0003] In view of the problems existing in the background art, the present application provides a hydrogen pressure regulator, an engine, and a vehicle. The hydrogen pressure regulator can reduce the requirements for the ECU and facilitate the ECU to drive the hydrogen pressure regulator.

[0004] According to the first aspect of the present utility model, there is provided a hydrogen pressure regulator, including: a body, a channel for transporting hydrogen is formed on the body, one end of the channel forms an air inlet, and the other end forms an air outlet; a proportional regulating valve, connected to the body and arranged at the channel for regulating the hydrogen pressure entering the engine; a cut-off valve, connected to the body and arranged at the channel for cutting off the supply of hydrogen to the engine; a hydrogen pressure and temperature sensor, connected to the body and arranged at the channel for measuring the pressure level and temperature of hydrogen; a control module, arranged on the body, respectively signal-connected to the proportional regulating valve, the cut-off valve, and the hydrogen pressure and temperature sensor, and the control module is signal-connected to the controller of the engine electrical system.

[0005] In some embodiments of the present utility model, the signal connection is made by wired connection or wireless connection.

[0006] In some embodiments of the present utility model, a wire harness socket is formed on the control module, and the proportional regulating valve, the cut-off valve, and the hydrogen pressure and temperature sensor are respectively connected to the wire harness socket through wire harnesses.

[0007] In some embodiments of the present utility model, a voltage regulator connector is formed on the control module, and the controller of the engine electrical system is connected to the voltage regulator connector through a wire harness.

[0008] In some embodiments of the present utility model, the cut-off valve is arranged close to the air inlet.

[0009] In some embodiments of the present utility model, the proportional regulating valve is arranged close to the air outlet.

[0010] In some embodiments of the present utility model, the hydrogen pressure and temperature sensor is arranged between the cut-off valve and the proportional regulating valve.

[0011] According to the second aspect of the present utility model, there is provided an engine including the above hydrogen pressure regulator.

[0012] According to the third aspect of the present utility model, there is provided a vehicle including the above engine.

[0013] The embodiment of the present application provides a hydrogen pressure regulator. By arranging a control module on the body, the control module is respectively connected to the proportional regulating valve, the cut-off valve and the hydrogen pressure and temperature sensor in signal connection, the ECU is connected to the control module in signal connection, the control module is powered by the vehicle battery, the control module receives the signal of the hydrogen pressure and temperature sensor and transmits it to the ECU, and then the control module analyzes the instruction transmitted by the ECU to perform corresponding control on the proportional regulating valve and the cut-off valve, so as to realize the self-driving of the hydrogen pressure regulator, greatly reducing the requirements for the ECU, facilitating the ECU to drive the hydrogen pressure regulator, and meeting the application of the hydrogen pressure regulator on the ECUs of different platforms. Description of the Drawings

[0014] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the hydrogen pressure regulator of the present application;

[0016] Figure 2 is the working principle diagram of the hydrogen pressure regulator of the present application.

[0017] Each label in the drawings represents the following: 1, body; 2, proportional regulating valve; 3, cut-off valve; 4, hydrogen pressure and temperature sensor; 5, control module; 6, battery; 7, wire harness socket; 8, regulator connector. Detailed Embodiments

[0018] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0019] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with this application. On the contrary, they are merely examples of devices and methods consistent with some aspects of this application as detailed in the appended claims.

[0020] In the description of this application, it should be understood that terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0021] An embodiment of this application discloses a hydrogen pressure regulator. As Figure 1 and Figure 2 shown, the hydrogen pressure regulator includes a body 1, a proportional regulating valve 2, a cut-off valve 3, a hydrogen pressure and temperature sensor 4, and a control module 5.

[0022] Among them, a channel (not shown) for conveying hydrogen is formed on the body 1. One end of the channel forms an air inlet, and the other end forms an air outlet.

[0023] The proportional regulating valve 2, the cut-off valve 3, and the hydrogen pressure and temperature sensor 4 are all connected to the body 1 and are respectively arranged at the channel. Among them, the proportional regulating valve 2 is used to regulate the hydrogen pressure entering the engine, the cut-off valve 3 is used to cut off the supply of hydrogen to the engine, and the hydrogen pressure and temperature sensor 4 is used to measure the pressure level and temperature of hydrogen.

[0024] The control module 5 is arranged on the body 1. The control module 5 is respectively signal-connected to the proportional regulating valve 2, the cut-off valve 3, and the hydrogen pressure and temperature sensor 4, and the control module 5 is signal-connected to the controller of the engine electrical system.

[0025] By using the hydrogen pressure regulator in this technical solution, the control module 5 is respectively connected to the proportional regulating valve 2, the cut-off valve 3 and the hydrogen pressure and temperature sensor 4 in terms of signals, the ECU is connected to the control module 5 in terms of signals, the air inlet is connected to the hydrogen source, and the air outlet is connected to the hydrogen injector of the engine. The control module 5 receives the signal from the hydrogen pressure and temperature sensor 4 and transmits it to the ECU, and then the control module 5 analyzes the instruction transmitted by the ECU to perform corresponding control on the proportional regulating valve 2 and the cut-off valve 3, so as to realize the self-driving of the hydrogen pressure regulator, greatly reducing the requirements for the ECU, facilitating the ECU to drive the hydrogen pressure regulator, and meeting the application of the hydrogen pressure regulator on the ECUs of different platforms.

[0026] It should be noted that on the vehicle, the control module 5 can be powered by the vehicle battery 6, which can further reduce the requirements for the ECU.

[0027] In some embodiments of the present invention, such as Figure 1 shown, the signal connection adopts wired connection or wireless connection.

[0028] It should be understood that the control module 5 can be respectively independently connected to the proportional regulating valve 2, the cut-off valve 3 and the hydrogen pressure and temperature sensor 4 in a wired connection or wireless connection manner, and the control module 5 can also be connected to the controller of the engine electrical system in a wired connection or wireless connection manner.

[0029] Specifically, in this embodiment, a wire harness socket 7 is formed on the control module 5, and the proportional regulating valve 2, the cut-off valve 3 and the hydrogen pressure and temperature sensor 4 are respectively connected to the wire harness socket 7 through wire harnesses; a voltage regulator connector 8 is formed on the control module 5, and the controller of the engine electrical system is connected to the voltage regulator connector 8 through a wire harness to achieve the purpose of a universal control interface, wherein the control module 5 communicates with the ECU through CAN communication.

[0030] In another embodiment, the hydrogen pressure regulator can realize the wireless connection of its various components through the design layout of the internal PCB board. It should be noted that the wired connection or wireless connection method can be specifically selected according to requirements and usage environments.

[0031] In some embodiments of the present invention, such as Figure 1 shown, the cut-off valve 3 is arranged close to the air inlet.

[0032] Further, the proportional regulating valve 2 is arranged close to the air outlet.

[0033] Further, the hydrogen pressure and temperature sensor 4 is arranged between the cut-off valve 3 and the proportional regulating valve 2.

[0034] It can be understood that the cut-off valve 3, the hydrogen pressure and temperature sensor 4, and the proportional regulating valve 2 are arranged in sequence from the hydrogen source towards the hydrogen injector.

[0035] The embodiment of the present application also provides an engine, which includes the hydrogen pressure regulator in any of the above embodiments.

[0036] The embodiment of the present application also provides a vehicle, which includes the above engine.

[0037] As mentioned above, only the preferred specific embodiments of the present utility model are described, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A hydrogen pressure regulator, characterized in that: include: A body, wherein a channel for conveying hydrogen is formed on the body, one end of the channel forms an air inlet, and the other end forms an air outlet; A proportional regulating valve, connected to the body and disposed at the passage, for regulating the pressure of hydrogen entering the engine; a cut-off valve connected to the body and disposed at the passage for cutting off the supply of hydrogen to the engine; A hydrogen pressure and temperature sensor, connected to the body and disposed at the channel, for measuring the pressure level and temperature of the hydrogen; The control module is arranged on the main body and is respectively connected to the proportional control valve, the cut-off valve and the hydrogen pressure and temperature sensor signals, and the control module is connected to the controller signal of the engine electrical system.

2. The hydrogen pressure regulator according to claim 1, characterized in that: The signal connection adopts a wired connection or a wireless connection.

3. The hydrogen pressure regulator according to claim 2, characterized in that: A wiring harness connector is formed on the control module, and the proportional control valve, the cut-off valve and the hydrogen pressure and temperature sensor are respectively connected to the wiring harness connector through wiring harnesses.

4. The hydrogen pressure regulator according to claim 2, characterized in that: A voltage regulator connector is formed on the control module, and a controller of the engine electrical system is connected to the voltage regulator connector via a wiring harness.

5. The hydrogen pressure regulator according to claim 2, characterized in that: The shut-off valve is arranged close to the air inlet.

6. The hydrogen pressure regulator according to claim 5, characterized in that: The proportional regulating valve is arranged close to the gas outlet.

7. The hydrogen pressure regulator according to claim 6, characterized in that: The hydrogen pressure and temperature sensor is arranged between the cut-off valve and the proportional regulating valve.

8. An engine, characterized in that: Comprising a hydrogen pressure regulator as described in any one of claims 1-7.

9. A vehicle, characterized in that: Comprising an engine as claimed in claim 8.

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