Remote clutch control device master cylinder structure and control method

Abstract

The present application relates to clutch control technology field, disclose a kind of remote clutch control device master cylinder structure and control method, including main oil cylinder, clutch booster pipe interface and control component, control component includes piston, spring, first sealing ring and gas supply component, when needing to execute clutch separation operation, gas supply component transports high-pressure gas to the space of piston left side in main oil cylinder, high-pressure gas pushes piston to overcome the elastic force of spring and moves right;With piston continues to move right, since the gap between piston and clutch booster pipe interface has been sealed by first sealing ring, a closed compression cavity is formed between piston end and the inner wall of clutch booster pipe interface.Piston further compresses the hydraulic oil in the closed cavity, so that the pressure of hydraulic oil sharply rises, high-pressure hydraulic oil is discharged from high-pressure oil output port, flows into clutch booster through pipeline, drives clutch booster to act, realizes the separation of clutch, to complete gear operation.

Description

Technical Field

[0001] This invention relates to the field of clutch control technology, and in particular to a master cylinder structure and control method for a remote clutch control device. Background Technology

[0002] The clutch control system is an important component of a vehicle's transmission system. In special vehicles such as fire trucks, fire trucks are typically equipped with a power take-off (PTO) to output engine power to equipment such as fire pumps. When engaging a PTO, the clutch must first be disengaged, and then engaged again after the gears are engaged. Traditionally, this operation was performed by the driver from inside the cab, by pressing the clutch pedal.

[0003] With increasing demands for efficiency and safety in firefighting operations, the need for remote clutch control is becoming increasingly prominent. Currently, some technical solutions are attempting to achieve remote clutch control, such as installing an electronically controlled remote controller on the oil pipe between the clutch booster cylinder and the pedal, combining a hydraulic-pneumatic system with an air circuit switching device, or using an electronically controlled master pump connected in series with the existing hydraulic control system.

[0004] However, the aforementioned existing technical solutions generally suffer from the following problems: remote clutch control devices typically require additional modules to be connected in series in the existing pipelines, and the clutch disengagement and engagement process relies on the coordinated operation of multiple valves and complex control logic, resulting in a complex system structure, numerous control links, long response links, and a large workload for installation and modification. Especially for the operation of the power take-off (PTO) of fire trucks, personnel need to be under the vehicle to connect and monitor the equipment, while traditional solutions require frequent back-and-forth between the cab and the work area, making the process cumbersome and inefficient. Summary of the Invention

[0005] The purpose of this invention is to provide a master pump structure and control method for a remote clutch control device, which solves the technical problems of complex structure and multiple control links in the existing remote clutch control devices, resulting in delayed control response and difficulty in installation and modification.

[0006] To achieve the above objectives, the present invention provides a master cylinder structure for a remote clutch control device, comprising a master hydraulic cylinder, a clutch booster oil pipe interface, and a control component. The clutch booster oil pipe interface is fixedly connected to the master hydraulic cylinder, and the master hydraulic cylinder is connected to the clutch booster oil pipe interface. The control component includes a piston, a spring, a first sealing ring, and an air supply component. The piston is slidably connected to the master hydraulic cylinder and located inside the master hydraulic cylinder. The two ends of the spring are respectively connected to the piston and the clutch booster oil pipe interface, and the spring is located inside the clutch booster oil pipe interface. The first sealing ring is fixedly connected to the piston, contacts the clutch booster oil pipe interface, and is sleeved on the piston. The air supply component is disposed on the master hydraulic cylinder and supplies gas to the interior of the master hydraulic cylinder.

[0007] The piston has multiple oil delivery channels that extend through it.

[0008] The air supply component includes a connecting seat, a solenoid valve, and an air inlet. The connecting seat is fixedly connected to and communicates with the main hydraulic cylinder. The solenoid valve is connected to and mounted on the connecting seat. The air inlet is fixedly connected to and communicates with the connecting seat.

[0009] The control component further includes a second sealing ring, which is fixedly connected to the piston and sleeved on the piston.

[0010] The piston has a first mounting groove and a second mounting groove, which respectively cooperate with the first sealing ring and the second sealing ring. The first sealing ring and the second sealing ring are disposed inside the first mounting groove and the second mounting groove.

[0011] The air supply component also includes a third sealing ring, which is disposed between the connecting seat and the main hydraulic cylinder.

[0012] The control component further includes a fourth sealing ring, which is disposed between the main hydraulic cylinder and the clutch power assist pipe interface.

[0013] On the other hand, the present invention also includes a method for controlling the master cylinder structure of a remote clutch control device, comprising the following steps: S1: Initial state, the piston is located in the left starting position in the main hydraulic cylinder under the action of the elastic force of the spring. The hydraulic oil enters the clutch power assist oil pipe interface through the oil inlet of the master pump and is discharged from the high pressure oil outlet through the oil delivery channel on the piston, forming a low pressure circulating oil circuit. S2: When the operator presses the button on the remote control, the solenoid valve is energized and opens. High-pressure gas enters the space on the left side of the piston in the main hydraulic cylinder through the air inlet and the connecting seat. The high-pressure gas pushes the piston to move to the right against the spring force. S3: The piston moves to the right, causing the first sealing ring to enter the clutch booster oil pipe interface. The first sealing ring seals the annular gap between the piston and the clutch booster oil pipe interface, cutting off the connection path between the master pump inlet and the high-pressure oil outlet. The oil delivery channel is blocked inside the clutch booster oil pipe interface. S4: The piston continues to move to the right, compressing the hydraulic oil in the closed chamber and increasing its pressure. The high-pressure hydraulic oil is discharged from the high-pressure oil outlet and flows into the clutch booster to drive the clutch to disengage, completing the gear shifting operation. S5: After shifting gears, release the remote control button. The solenoid valve is de-energized and closes, stopping the air supply. The piston moves back to the left under the action of the spring return force. The first sealing ring gradually exits the clutch booster oil pipe interface. The connection path between the master pump inlet and the high-pressure oil outlet is gradually restored. The high-pressure hydraulic oil is depressurized, the clutch booster retracts, and the clutch gradually engages. S6: The piston continues to move to the left to the limit position of the elastic retaining ring, the oil supply channel is reconnected to the main pump inlet and high pressure oil outlet, external hydraulic oil is automatically replenished into the system, and the system is restored to the initial low pressure circulation state, completing a complete clutch remote control cycle.

[0014] This invention discloses a remote clutch control device master pump structure and control method. The piston has multiple oil supply channels that extend through the piston. In the initial state, hydraulic oil enters the clutch booster oil pipe interface through the master pump inlet and is discharged from the high-pressure oil outlet through the oil supply channels, forming a low-pressure circulating oil circuit. When the air supply component supplies high-pressure gas to the main hydraulic cylinder, the piston moves to the right, the first sealing ring enters the clutch booster oil pipe interface and seals the annular gap, cutting off the connection between the oil supply channel and the master pump inlet. The piston continues to move to the right, compressing the hydraulic oil in the sealed chamber, generating high-pressure oil that is output from the high-pressure oil outlet, driving the clutch booster to disengage the clutch. After releasing the remote control, the air supply stops, the spring pushes the piston to the left to reset, the first sealing ring exits the clutch booster oil pipe interface, the oil supply channels reconnect the master pump inlet and the high-pressure oil outlet, the system returns to the low-pressure circulating state, and the clutch engages.

[0015] This invention eliminates the need for additional directional valves or complex control logic, achieving automatic switching between "low-pressure circulation" and "high-pressure output" in the oil circuit solely through piston displacement. It features a compact structure and rapid response. Operators can engage and disengage the clutch with a single button press via remote control from outside the vehicle, eliminating the need to travel to and from the cab and effectively improving the convenience and efficiency of power take-off (PTO) operation on fire trucks. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of the master pump of the remote clutch control device according to the first embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the piston installation structure according to the first embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the spring mounting structure according to the first embodiment of the present invention.

[0020] Figure 4 This is the first embodiment of the present invention. Figure 3 Enlarged view of point A.

[0021] Figure 5 This is a schematic diagram of the installation structure of the elastic retaining ring and gasket according to the second embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the installation structure of the fifth, sixth, and seventh sealing rings according to the second embodiment of the present invention.

[0023] Figure 7 This is a flowchart of the control method for the master pump structure of the remote clutch control device of the present invention.

[0024] In the diagram: 101-Main hydraulic cylinder, 102-Clutch power assist oil pipe interface, 103-Control component, 104-Master pump inlet, 105-High pressure oil outlet, 106-Piston, 107-Spring, 108-First sealing ring, 109-Air supply component, 110-Oil delivery channel, 111-Connecting seat, 112-Solenoid valve, 113-Air inlet, 114-Second sealing ring, 115-First mounting groove, 116-Second mounting groove, 117-Third sealing ring, 118-Fourth sealing ring, 201-Elastic retaining ring, 202-Gasket, 203-Fifth sealing ring, 204-Sixth sealing ring, 205-Seventh sealing ring. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] First embodiment: Please see Figures 1-4 , Figure 1 This is a schematic diagram of the overall structure of the master pump of the remote clutch control device according to the first embodiment of the present invention. Figure 2This is a schematic diagram of the piston installation structure according to the first embodiment of the present invention. Figure 3 This is a schematic diagram of the spring mounting structure according to the first embodiment of the present invention. Figure 4 This is the first embodiment of the present invention. Figure 3 Enlarged view at point A. This invention provides a master pump structure for a remote clutch control device, including a main hydraulic cylinder 101, a clutch booster oil pipe interface 102, and a control component 103. The control component 103 includes a piston 106, a spring 107, a first sealing ring 108, and an air supply component 109. It is understood that the aforementioned solution can be used in scenarios applicable to the gear shifting control of a fire truck's power take-off unit.

[0027] In this specific embodiment, the clutch booster oil pipe interface 102 is fixedly connected to the main hydraulic cylinder 101, and the main hydraulic cylinder 101 communicates with the clutch booster oil pipe interface 102; the piston 106 is slidably connected to the main hydraulic cylinder 101 and is located inside the main hydraulic cylinder 101; the two ends of the spring 107 are respectively connected to the piston 106 and the clutch booster oil pipe interface 102, and the spring 107 is located inside the clutch booster oil pipe interface 102; the first sealing ring 108 is fixedly connected to the piston 106 and contacts the clutch booster oil pipe interface 102, and is sleeved on the piston 106; the air supply component 109 is disposed on the main hydraulic cylinder 101 and supplies gas to the interior of the main hydraulic cylinder 101.

[0028] The clutch booster oil pipe interface 102 is also provided with a master pump inlet 104, which is connected to the clutch booster oil pipe interface 102 and is used to replenish hydraulic oil into the master hydraulic cylinder 101; the master hydraulic cylinder 101 is also provided with a high-pressure oil outlet 105, which is connected to the clutch booster oil pipe interface 102 and is used to deliver compressed high-pressure hydraulic oil to the clutch booster.

[0029] In the initial state, the piston 106 is located at the left starting position inside the main hydraulic cylinder 101 under the elastic force of the spring 107. At this time, the master pump inlet 104 is connected to the oil chamber inside the main hydraulic cylinder 101. Hydraulic oil can enter the main hydraulic cylinder 101 and the clutch booster oil pipe interface 102 through the master pump inlet 104, and be discharged through the high-pressure oil outlet 105, forming a low-pressure circulation state of the oil circuit.

[0030] When clutch disengagement is required, the operator sends a start signal via remote control. The air supply component 109 delivers high-pressure gas to the space to the left of the piston 106 inside the main hydraulic cylinder 101. The high-pressure gas pushes the piston 106 to move to the right against the elastic force of the spring 107. As the piston 106 moves to the right, the first sealing ring 108 moves synchronously with the piston 106 and gradually enters the interior of the clutch assist oil pipe interface 102. When the first sealing ring 108 is fully inside the clutch assist oil pipe interface 102, it fits tightly against the outer wall of the piston 106 and the inner wall of the clutch assist oil pipe interface 102, completely sealing the annular gap between them. This cuts off the direct communication path between the master pump inlet 104 and the high-pressure oil outlet 105 through the interior of the main hydraulic cylinder 101.

[0031] As the piston 106 continues to move to the right, the first sealing ring 108 seals the gap between the piston 106 and the clutch booster oil pipe interface 102, forming a closed compression chamber between the end of the piston 106 and the inner wall of the clutch booster oil pipe interface 102. The piston 106 further compresses the hydraulic oil in this closed chamber to the right, causing the hydraulic oil pressure to rise sharply. The high-pressure hydraulic oil is discharged from the high-pressure oil output port 105, flows through the pipeline into the clutch booster, drives the clutch booster to operate, realizes clutch disengagement, and thus completes the gear engagement operation.

[0032] When gear engagement is complete and clutch engagement is required, the operator releases the remote control button, and the air supply component 109 stops supplying high-pressure gas to the main hydraulic cylinder 101. At this time, the piston 106 moves to the left under the restoring force of the spring 107, and the high-pressure gas on the left side of the piston 106 is discharged through the air supply component 109. During the leftward movement of the piston 106, the first sealing ring 108 gradually withdraws from the clutch booster oil pipe interface 102, the connection path between the master pump inlet 104 and the high-pressure oil outlet 105 is gradually restored, the pressure of the high-pressure hydraulic oil decreases, the clutch booster retracts under the action of its own reset mechanism, and the clutch gradually engages. This invention has a compact structure, rapid response, and simple operation, and is particularly suitable for application scenarios where clutch disengagement and engagement are remotely controlled outside the vehicle, such as fire trucks, effectively improving operational efficiency and safety.

[0033] The piston 106 has an oil delivery channel 110, which is provided in multiple ways and extends through the piston 106.

[0034] Secondly, the control component 103 also includes a second sealing ring 114, which is fixedly connected to the piston 106 and sleeved on the piston 106.

[0035] The piston 106 has multiple oil delivery channels 110 that extend axially through the piston 106. The oil delivery channels 110 provide a flow path for hydraulic oil in the initial state, allowing the hydraulic oil to flow from the master pump inlet 104 through the oil delivery channels 110 to the high-pressure oil outlet 105. The second sealing ring 114 seals the gap between the piston 106 and the inner wall of the main hydraulic cylinder 101.

[0036] Meanwhile, the air supply component 109 includes a connecting seat 111, a solenoid valve 112, and an air inlet 113. The connecting seat 111 is fixedly connected to and communicates with the main hydraulic cylinder 101. The solenoid valve 112 is connected to and mounted on the connecting seat 111. The air inlet 113 is fixedly connected to and communicates with the connecting seat 111. The air inlet 113 is used to connect to an external high-pressure air source (not shown in the figure). The solenoid valve 112 is used to control the entry and exit of high-pressure gas into the main hydraulic cylinder 101. The solenoid valve 112 is electrically connected to a remote control receiver module. When the remote control sends a start signal, the solenoid valve 112 is energized and opens, and the high-pressure gas enters the space to the left of the piston 106 in the main hydraulic cylinder 101 through the air inlet 113 and the connecting seat 111. When the remote control signal disappears, the solenoid valve 112 is de-energized and closes, cutting off the supply of high-pressure gas.

[0037] In addition, the piston 106 has a first mounting groove 115 and a second mounting groove 116, which respectively cooperate with the first sealing ring 108 and the second sealing ring 114. The first sealing ring 108 and the second sealing ring 114 are disposed inside the first mounting groove 115 and the second mounting groove 116. The first mounting groove 115 and the second mounting groove 116 are used to position and limit the first sealing ring 108 and the second sealing ring 114, preventing the sealing rings from shifting or falling out during the movement of the piston 106, ensuring that the sealing rings are always in the correct working position, thereby ensuring the durability and stability of the sealing effect.

[0038] Then, the air supply component 109 further includes a third sealing ring 117, which is disposed between the connecting seat 111 and the main hydraulic cylinder 101. The third sealing ring 117 is used to seal the mating surface between the connecting seat 111 and the main hydraulic cylinder 101 to prevent high-pressure gas from leaking from the connection and to ensure the sealing and reliability of the air supply component 109 in supplying gas to the main hydraulic cylinder 101.

[0039] Finally, the control component 103 also includes a fourth sealing ring 118, which is disposed between the main hydraulic cylinder 101 and the clutch assist oil pipe interface 102. The fourth sealing ring 118 is used to seal the mating surface between the main hydraulic cylinder 101 and the clutch assist oil pipe interface 102 to prevent high-pressure hydraulic oil from leaking from the connection between the two and to ensure the sealing integrity of the entire hydraulic system.

[0040] Second embodiment: Based on the first embodiment, please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the installation structure of the elastic retaining ring and gasket in the second embodiment. Figure 6 This is a schematic diagram of the installation structure of the fifth, sixth and seventh sealing rings in the second embodiment. The control component 103 in this embodiment also includes an elastic retaining ring 201 and a gasket 202.

[0041] In this specific embodiment, the elastic retaining ring 201 is fixedly connected to the main hydraulic cylinder 101 and located inside the main hydraulic cylinder 101; the gasket 202 is fixedly connected to the elastic retaining ring 201 and located on the side of the elastic retaining ring 201 near the piston 106; the elastic retaining ring 201 is disposed in the annular groove on the inner wall of the main hydraulic cylinder 101 to limit the leftward reset stroke of the piston 106, preventing the piston 106 from moving excessively to the left under the force of the spring 107 and impacting the end cover of the main hydraulic cylinder 101 or other components; the gasket 202 is disposed between the elastic retaining ring 201 and the piston 106, and is used to contact the end face of the piston 106 when the piston 106 resets to the limit position, playing a buffering and shock-absorbing role, reducing the rigid impact between the piston 106 and the elastic retaining ring 201, and extending the service life of each component.

[0042] The control component 103 further includes a fifth sealing ring 203, a sixth sealing ring 204, and a seventh sealing ring 205. All three sealing rings are fixedly connected to the piston 106 and fitted onto it. The piston 106 has corresponding mounting grooves corresponding to the fifth sealing ring 203, the sixth sealing ring 204, and the seventh sealing ring 205. The fifth sealing ring 203, the sixth sealing ring 204, and the seventh sealing ring 205 are all located at one end of the left side of the piston 106, separating the air chamber on the left side of the piston 106 from the oil chamber on the right side of the piston 106, preventing high-pressure gas and hydraulic oil from interfering with each other during the movement of the piston 106.

[0043] The master pump structure of the remote clutch control device of the present invention, through the coordinated operation of the piston 106, the first sealing ring 108, the second sealing ring 114, the oil supply channel 110, and the air supply component 109, achieves automatic switching between the "low-pressure circulation" and "high-pressure output" states of the oil circuit solely through the reciprocating motion of the piston 106, without the need for additional reversing valves and complex control logic. The overall structure is compact, highly integrated, reliably sealed, and responds quickly, effectively meeting the practical needs of special vehicles such as fire trucks for remote clutch control from outside the vehicle.

[0044] Please see Figure 7 The present invention also includes a method for controlling the master cylinder structure of a remote clutch control device, comprising the following steps: S1: Initial state, piston 106 is located in the left starting position in main hydraulic cylinder 101 under the elastic force of spring 107. Hydraulic oil enters clutch booster oil pipe interface 102 through master pump inlet 104 and is discharged from high pressure oil outlet 105 through oil delivery channel 110 on piston 106, forming low pressure circulating oil circuit. S2: When the operator presses the remote control button, the solenoid valve 112 is energized and opened. High-pressure gas enters the space to the left of the piston 106 in the main hydraulic cylinder 101 through the air inlet 113 and the connecting seat 111. The high-pressure gas pushes the piston 106 to move to the right against the elastic force of the spring 107. S3: The piston 106 moves to the right, causing the first sealing ring 108 to enter the clutch booster oil pipe interface 102. The first sealing ring 108 seals the annular gap between the piston 106 and the clutch booster oil pipe interface 102, cutting off the connection path between the master pump inlet 104 and the high-pressure oil outlet 105. The oil delivery channel 110 is blocked inside the clutch booster oil pipe interface 102. S4: Piston 106 continues to move to the right, compressing the hydraulic oil in the closed chamber and increasing its pressure. The high-pressure hydraulic oil is discharged from the high-pressure oil output port 105 and flows into the clutch booster to drive the clutch to disengage, completing the gear shifting operation. S5: After shifting gears, release the remote control button. The solenoid valve 112 is de-energized and closes, stopping the air supply. The piston 106 moves back to the left under the reset force of the spring 107. The first sealing ring 108 gradually exits the clutch booster oil pipe interface 102. The connection path between the master pump inlet 104 and the high-pressure oil outlet 105 is gradually restored. The high-pressure hydraulic oil is depressurized, the clutch booster retracts, and the clutch gradually engages. S6: Piston 106 continues to move to the left to the limit position of elastic retaining ring 201, and oil supply channel 110 is reconnected to the main pump inlet 104 and high pressure oil outlet 105. External hydraulic oil is automatically replenished into the system, restoring it to the initial low pressure circulation state, and completing a complete clutch remote control cycle.

[0045] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A master pump structure for a remote clutch control device, characterized in that, It includes a main hydraulic cylinder, a clutch booster oil pipe interface, and a control component. The clutch booster oil pipe interface is fixedly connected to the main hydraulic cylinder, and the main hydraulic cylinder is connected to the clutch booster oil pipe interface. The control assembly includes a piston, a spring, a first sealing ring, and an air supply component. The piston is slidably connected to the main hydraulic cylinder and located inside the main hydraulic cylinder. The two ends of the spring are respectively connected to the piston and the clutch power assist pipe interface, and the spring is located inside the clutch power assist pipe interface. The first sealing ring is fixedly connected to the piston, contacts the clutch power assist pipe interface, and is sleeved on the piston. The air supply component is disposed on the main hydraulic cylinder and supplies gas to the inside of the main hydraulic cylinder.

2. The master pump structure of the remote clutch control device as described in claim 1, characterized in that, The piston has multiple oil delivery channels that extend through the piston.

3. The master pump structure of the remote clutch control device as described in claim 1, characterized in that, The air supply component includes a connecting seat, a solenoid valve, and an air inlet. The connecting seat is fixedly connected to and communicates with the main hydraulic cylinder. The solenoid valve is connected to and mounted on the connecting seat. The air inlet is fixedly connected to and communicates with the connecting seat.

4. The master pump structure of the remote clutch control device as described in claim 1, characterized in that, The control component also includes a second sealing ring, which is fixedly connected to the piston and sleeved on the piston.

5. The master pump structure of the remote clutch control device as described in claim 4, characterized in that, The piston has a first mounting groove and a second mounting groove, which respectively mate with the first sealing ring and the second sealing ring. The first sealing ring and the second sealing ring are disposed inside the first mounting groove and the second mounting groove.

6. The master pump structure of the remote clutch control device as described in claim 3, characterized in that, The air supply component also includes a third sealing ring, which is disposed between the connecting seat and the main hydraulic cylinder.

7. The master pump structure of the remote clutch control device as described in claim 1, characterized in that, The control component also includes a fourth sealing ring, which is disposed between the main hydraulic cylinder and the clutch booster oil pipe interface.

8. A method for controlling a master pump structure of a remote clutch control device, employing the master pump structure of a remote clutch control device as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Initial state, the piston is located in the left starting position in the main hydraulic cylinder under the action of the elastic force of the spring. The hydraulic oil enters the clutch power assist oil pipe interface through the oil inlet of the master pump and is discharged from the high pressure oil outlet through the oil delivery channel on the piston, forming a low pressure circulating oil circuit. S2: When the operator presses the button on the remote control, the solenoid valve is energized and opens. High-pressure gas enters the space on the left side of the piston in the main hydraulic cylinder through the air inlet and the connecting seat. The high-pressure gas pushes the piston to move to the right against the spring force. S3: The piston moves to the right, causing the first sealing ring to enter the clutch booster oil pipe interface. The first sealing ring seals the annular gap between the piston and the clutch booster oil pipe interface, cutting off the connection path between the master pump inlet and the high-pressure oil outlet. The oil delivery channel is blocked inside the clutch booster oil pipe interface. S4: The piston continues to move to the right, compressing the hydraulic oil in the closed chamber and increasing its pressure. The high-pressure hydraulic oil is discharged from the high-pressure oil outlet and flows into the clutch booster to drive the clutch to disengage, completing the gear shifting operation. S5: After shifting gears, release the remote control button. The solenoid valve is de-energized and closes, stopping the air supply. The piston moves back to the left under the action of the spring return force. The first sealing ring gradually exits the clutch booster oil pipe interface. The connection path between the master pump inlet and the high-pressure oil outlet is gradually restored. The high-pressure hydraulic oil is depressurized, the clutch booster retracts, and the clutch gradually engages. S6: The piston continues to move to the left to the limit position of the elastic retaining ring, the oil supply channel is reconnected to the main pump inlet and high pressure oil outlet, external hydraulic oil is automatically replenished into the system, and the system is restored to the initial low pressure circulation state, completing a complete clutch remote control cycle.

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