Automatic exhaust and liquid injection device for line control brake product loading

Abstract

The utility model relates to a kind of automatic exhaust liquid injection devices of line control brake product loading, belong to the field of automobile braking system.Cap is connected by sealing washer and liquid storage tank thread sealing, solenoid valve is connected on oil pipe, two-position three-way valve is connected on air pipe, and oil pipe, liquid level sensor, pressure sensor and air pipe front end respectively pass through cap and enter liquid storage tank in.Merits are novel structure, with automatic exhaust liquid injection function, residual gas in injection pipeline and cavity can be discharged in real time, brake performance reduction problem caused by air resistance is eliminated from root, and safety hazard produced thereby is avoided;It can also realize uninterrupted continuous loading, and can be linked with other control systems, greatly reduce manual intervention link, effectively simplify operation process, comprehensively optimize the operation efficiency of liquid loading, with key technical value in loading operation, provide stable and reliable technical support for loading link.

Description

Technical Field

[0001] This utility model belongs to the field of automotive braking systems, and in particular relates to an automatic air venting and fluid injection device for brake-by-wire products. Background Technology

[0002] Brake-by-wire is a significant innovation in automotive braking technology. It replaces traditional mechanical and hydraulic connections with electronic signals and electronically controlled actuators, controlling the braking system through electronic signals. By replacing the traditional hydraulic lines or mechanical connections between the brake pedal and the brake with electrical signals, it makes braking control more intelligent and adjustable, and is one of the key technologies for achieving advanced levels of autonomous driving.

[0003] Due to their complex structure and rapid evolution, brake-by-wire products, when connected to the reservoir during vehicle installation, often suffer from incomplete gas removal from their flow channels. Residual gas can severely weaken the braking performance of these products, posing a direct threat to driving safety. Therefore, effectively removing residual gas from the flow channels during the installation of brake-by-wire products is crucial for improving product quality and ensuring driving safety. This necessitates the development of an automatic venting and injection device suitable for their use. Summary of the Invention

[0004] This utility model provides an automatic venting and liquid injection device for loading brake-by-wire products, in order to solve the problem of incomplete venting during the loading stage of brake-by-wire products.

[0005] The technical solution adopted by this utility model is as follows: it includes a solenoid valve, an oil pipe, a liquid level sensor, a pressure sensor, a two-position three-way valve, an air pipe, a sealing gasket, a screw cap, and a liquid storage tank. The screw cap is connected to the liquid storage tank by a threaded seal through the sealing gasket. The solenoid valve is connected to the oil pipe, and the two-position three-way valve is connected to the air pipe. The front ends of the oil pipe, liquid level sensor, pressure sensor, and air pipe pass through the screw cap and enter the liquid storage tank.

[0006] The solenoid valve supplies brake fluid from the supply port. Its front part is sealed to the cap. The output port is located inside the reservoir. When opened, the brake fluid enters the reservoir through the solenoid valve.

[0007] The liquid level sensor is connected to an external control module via a data cable, and its front is sealed to the cap. It is used to collect the liquid level height of the storage tank.

[0008] The pressure sensor is connected to an external control module via a data cable, and its front end is sealed to the cap to collect the air pressure inside the storage tank.

[0009] The vacuum port of the two-position three-way valve is connected to a vacuum source, the positive pressure supply port is connected to a positive pressure source, and the working port is located inside the upper part of the storage tank. When the positive pressure supply port is closed, the vacuum port is connected to the storage tank, and the storage tank is evacuated; when the vacuum port is closed, the positive pressure supply port is connected to the storage tank, and the storage tank is filled with positive pressure. Its front part is sealed to the screw cap.

[0010] The advantages of this utility model are its novel structure and automatic venting and liquid injection function, which can discharge residual gas in the injection pipeline and cavity in real time, eliminating the problem of reduced braking performance caused by air resistance from the root and avoiding the resulting safety hazards. At the same time, it can realize uninterrupted continuous loading and can be linked with other control systems, greatly reducing manual intervention, effectively simplifying the operation process, and comprehensively optimizing the efficiency of liquid loading. It has key technical value in loading operations and provides stable and reliable technical support for the loading process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] It includes a solenoid valve 1, an oil pipe 2, a liquid level sensor 3, a pressure sensor 4, a two-position three-way valve 5, an air pipe 6, a sealing gasket 7, a screw cap 8, and a storage tank 9. The screw cap 8 is threadedly connected to the storage tank 9 through the sealing gasket 7. The solenoid valve 1 is connected to the oil pipe 2, and the two-position three-way valve 5 is connected to the air pipe 6. The front ends of the oil pipe 2, the liquid level sensor 3, the pressure sensor 4, and the air pipe 6 pass through the screw cap 8 and enter the storage tank 9.

[0013] The solenoid valve 1 supplies brake fluid from the supply port. Its front part is sealed to the cap 8. The output port is located inside the reservoir 9. When opened, the brake fluid enters the reservoir 9 through it.

[0014] The liquid level sensor 3 is connected to an external control module via a data cable, and its front is sealed to the cap 8. It is used to collect the liquid level height of the storage tank 9.

[0015] The pressure sensor 4 is connected to an external control module via a data cable, and its front is sealed to the cap 8 to collect the air pressure inside the storage tank 9.

[0016] The vacuum port of the two-position three-way valve 5 is connected to a vacuum source, the positive pressure supply port is connected to a positive pressure source, and the working port is located inside and above the liquid storage tank 9. When the positive pressure supply port is closed, the vacuum port is connected to the liquid storage tank 9, and the liquid storage tank 9 is evacuated; when the vacuum port is closed, the positive pressure supply port is connected to the liquid storage tank 9, and the liquid storage tank 9 is filled with positive pressure. Its front part is sealed to the screw cap 8.

[0017] Working principle The screw cap 8 of this utility model is connected to the liquid storage tank 9 connected to the wire-controlled brake product 10. When the exhaust start command is received, the two-position three-way valve 5 is switched to the state of being connected to the vacuum source. Air is drawn from the inside of the liquid storage tank 9 and the inner cavity of the pipeline of the wire-controlled brake product 10 connected to it. The pressure sensor 4 collects pressure data. After the vacuum degree reaches the target pressure, it enters the pressure stabilization stage and lasts for n seconds. After the pressure stabilization is completed, solenoid valve 1 opens and brake fluid is added. Liquid level sensor 3 collects the liquid level. When the brake fluid is added to the maximum level, it controls the two-position three-way valve 5 to disconnect from the vacuum source and connect to the positive pressure source, i.e., atmospheric pressure.

[0018] After the above actions are completed, the system sends a self-test command to the brake-by-wire product 10. The brake-by-wire product 10 will self-test whether the exhaust is qualified. If the self-test result is that the exhaust is unqualified, after receiving the signal, this utility model will restart the above exhaust and liquid injection process. This cycle will continue until the brake-by-wire product 10 confirms that the exhaust is qualified through self-test. After that, this utility model will be removed.

[0019] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any equivalent substitutions or modifications made by those skilled in the art based on the technical solution and the inventive concept of the present invention within the scope of the technical concept disclosed in the present invention shall all fall within the scope of protection of the present invention.

Claims

1. An automatic air venting and liquid injection device for loading braked products onto vehicles, characterized in that... It includes a solenoid valve, oil pipe, liquid level sensor, pressure sensor, two-position three-way valve, air pipe, sealing gasket, cap and liquid storage tank. The cap is connected to the liquid storage tank by a threaded seal through the sealing gasket. The solenoid valve is connected to the oil pipe and the two-position three-way valve is connected to the air pipe. The front ends of the oil pipe, liquid level sensor, pressure sensor and air pipe pass through the cap and enter the liquid storage tank.

2. The automatic exhaust and liquid injection device for loading braked products according to claim 1, characterized in that... The solenoid valve supplies brake fluid from the supply port. Its front part is sealed to the cap. The output port is located inside the reservoir. When opened, the brake fluid enters the reservoir through the solenoid valve.

3. The automatic air venting and liquid injection device for loading braked products according to claim 1, characterized in that... The liquid level sensor is connected to an external control module via a data cable, and its front is sealed to the cap. It is used to collect the liquid level height of the storage tank.

4. The automatic air venting and liquid injection device for loading braked products according to claim 1, characterized in that... The pressure sensor is connected to an external control module via a data cable, and its front end is sealed to the cap to collect the air pressure inside the storage tank.

5. The automatic air venting and liquid injection device for loading braked products according to claim 1, characterized in that... The vacuum port of the two-position three-way valve is connected to a vacuum source, the positive pressure supply port is connected to a positive pressure source, and the working port is located inside the upper part of the storage tank. When the positive pressure supply port is closed, the vacuum port is connected to the storage tank, and the storage tank is evacuated; when the vacuum port is closed, the positive pressure supply port is connected to the storage tank, and the storage tank is filled with positive pressure. Its front part is sealed to the screw cap.

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