Hydraulic control system of dry-type dual-clutch transmission

Abstract

The invention relates to the technical field of automobile hydraulic control, and particularly discloses a dry-type dual-clutch transmission hydraulic control system which comprises an oil supply assembly, a first control assembly, a second control assembly and a third control assembly. The oil supply assembly and the first energy accumulator can alternately supply oil to the first double-acting hydraulic cylinder, and the oil supply assembly and the second energy accumulator can also alternately supply oil to the second double-acting hydraulic cylinder, so that when the first clutch or the second clutch is in an engaged state and gear shifting is carried out, continuous high-load operation of the oil supply assembly is avoided, and the service life of the oil supply assembly is prolonged. Meanwhile, the first energy accumulator and the second energy accumulator can effectively absorb pressure vibration and impact in the gear shifting process; according to the invention, the problems of large energy consumption loss and poor stability caused by direct driving through an engine in the prior art are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile hydraulic control, and in particular to a dry dual-clutch transmission hydraulic control system. Background Art

[0002] At present, the dry dual-clutch transmission has two clutches, one for odd gears and one for even gears. When one gear is in use, the other gear is ready for shifting, and the shifting can be completed in a very short time, so that the power transmission is uninterrupted. In the prior art, most of the hydraulic control systems of the dry dual-clutch transmission of automobiles are directly driven by the engine. This driving method requires the engine to run continuously at high load, resulting in large energy loss and poor stability; and pressure vibration and impact will occur during the clutch shifting process, which will have a great impact on the clutch when in use. Summary of the invention

[0003] The purpose of the present invention is to provide a dry dual-clutch transmission hydraulic control system to solve the problems of large energy loss and poor stability caused by direct engine driving in the prior art.

[0004] In order to solve the above problems, the present invention provides a dry dual-clutch transmission hydraulic control system, which includes: an oil supply component; a first control component, including a first control oil circuit and a first double-acting hydraulic cylinder and a first accumulator arranged on the first control oil circuit, the inlet of the first control oil circuit and the oil outlet of the oil supply component can be connected and disconnected, the outlet of the first control oil circuit is connected to the first double-acting hydraulic cylinder, the first accumulator can alternately supply oil to the first double-acting hydraulic cylinder with the first control oil circuit, and the first double-acting hydraulic cylinder and the first accumulator of the dry dual-clutch transmission are connected to each other. clutch connection; a second control component, including a second control oil circuit and a second double-acting hydraulic cylinder and a second accumulator arranged on the second control oil circuit, the inlet of the second control oil circuit and the oil outlet of the oil supply component can be connected and disconnected, the outlet of the second control oil circuit is connected to the second double-acting hydraulic cylinder, the second accumulator can alternately supply oil to the second double-acting hydraulic cylinder with the second control oil circuit, the second double-acting hydraulic cylinder is connected to the second clutch of the dry dual-clutch transmission; a third control component, which can be connected and disconnected with the oil outlet of the oil supply component and can supply oil to the gear mechanism of the dry dual-clutch transmission.

[0005] As a preferred technical solution for the hydraulic control system of a dry dual-clutch transmission, the first control component also includes a first pressure regulating valve arranged in the first control oil circuit. The first pressure regulator is located between the first accumulator and the first double-acting hydraulic cylinder. The first pressure regulating valve can adjust the pressure value in the first control oil circuit.

[0006] As a preferred technical solution for the hydraulic control system of a dry dual-clutch transmission, the first control oil circuit includes an oil inlet pipeline and an oil outlet pipeline, the inlet of the oil inlet pipeline is connected to the oil outlet of the oil supply assembly, the outlet of the oil inlet pipeline is connected to the inlet of the first oil chamber of the first pressure regulating valve, the outlet of the first oil chamber is connected to the first cavity of the first double-acting hydraulic cylinder, the second cavity of the first double-acting hydraulic cylinder is connected to the inlet of the oil outlet pipeline, the outlet of the oil outlet pipeline is connected to the inlet of the second oil chamber of the first pressure regulating valve, and the outlet of the second oil chamber is connected to the oil inlet of the oil supply assembly.

[0007] As a preferred technical solution for the hydraulic control system of a dry dual-clutch transmission, the first control component includes a first pressure sensor and a second pressure sensor. The first pressure sensor is arranged on a pipeline connecting the first oil chamber and the first cavity of the first double-acting hydraulic cylinder, and the second pressure sensor is arranged on the oil outlet pipeline.

[0008] As a preferred technical solution for the hydraulic control system of a dry dual-clutch transmission, the first control component also includes a first one-way valve and a second one-way valve. The first one-way valve is arranged on a pipeline connecting the outlet of the second oil chamber and the oil inlet of the oil supply component, and the second one-way valve is arranged on a pipeline connecting the pressure relief port of the first pressure regulating valve and the oil inlet of the oil supply component.

[0009] As a preferred technical solution for the dry dual-clutch transmission hydraulic control system, the first control component also includes a third pressure sensor arranged on the first control oil circuit, and the third pressure sensor is located between the first accumulator and the oil outlet of the oil supply component.

[0010] As a preferred technical solution for the hydraulic control system of a dry dual-clutch transmission, the third control component includes a third control oil circuit and a first control valve arranged on the third control oil circuit. The first control valve can control the on-off of the third control oil circuit. The inlet of the third control oil circuit is connected to the oil outlet of the oil supply component, and the outlet of the third control oil circuit can supply oil to the gear mechanism of the dry dual-clutch transmission.

[0011] As a preferred technical solution for the hydraulic control system of a dry dual-clutch transmission, the oil supply component includes an oil supply pump and an oil storage tank, the outlet of the oil storage tank is connected to the inlet of the oil supply pump, and the inlet of the first control oil circuit, the inlet of the second control oil circuit, and the third control component are all connected to the outlet of the oil supply pump in a disconnectable manner.

[0012] As a preferred technical solution for the dry dual-clutch transmission hydraulic control system, the dry dual-clutch transmission hydraulic control system also includes a pressure regulating component, which includes a pressure regulating pipeline and a third one-way valve and a relief valve arranged on the pressure regulating pipeline. The inlet of the pressure regulating pipeline is connected to the oil storage tank, and the outlet of the pressure regulating pipeline is connected to the outlet of the oil supply pump. The third one-way valve is located between the oil storage tank and the relief valve, and the pressure values ​​in the first control oil circuit, the second control oil circuit, and the third control component are lower than the set pressure value of the relief valve.

[0013] As a preferred technical solution for the dry dual-clutch transmission hydraulic control system, the dry dual-clutch transmission hydraulic control system also includes a controller, and the first control oil circuit, the second control oil circuit and the third control component are all electrically connected to the controller, and the controller can control the on and off of the first control oil circuit, the second control oil circuit and the third control component.

[0014] The beneficial effects of the present invention are:

[0015] The present invention provides a dry dual-clutch transmission hydraulic control system, which includes an oil supply component, a first control component, a second control component and a third control component. The first control component includes a first control oil circuit and a first double-acting hydraulic cylinder and a first accumulator arranged on the first control oil circuit, and the second control component includes a second control oil circuit and a second double-acting hydraulic cylinder and a second accumulator arranged on the second control oil circuit. The dry dual-clutch transmission hydraulic control system of the present invention can alternately supply oil to the first double-acting hydraulic cylinder through the oil supply assembly and the first accumulator, and the oil supply assembly can also alternately supply oil to the second double-acting hydraulic cylinder with the second accumulator. At the same time, the first double-acting hydraulic cylinder can be connected to the first clutch, and the second double-acting hydraulic cylinder can be connected to the second clutch. In this way, when the first clutch or the second clutch is in an engaged state, when shifting, the continuous high-load operation of the oil supply assembly is avoided, and the energy consumption is reduced. At the same time, the first accumulator and the second accumulator can effectively absorb the pressure vibration and impact during the shifting process; the third control assembly is set to supply oil to the gear mechanism of the dry dual-clutch transmission, so that the lubrication and cooling of the gear mechanism of the dry dual-clutch transmission can be met. In addition, the present invention replaces the prior art method of direct engine driving with the method of alternately supplying oil to the first double-acting hydraulic cylinder through the oil supply assembly and the first accumulator, and alternately supplying oil to the second double-acting hydraulic cylinder through the oil supply assembly and the second accumulator. This driving method effectively solves the problem of large energy loss and poor stability caused by the prior art method of direct engine driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a hydraulic control system of a dry dual-clutch transmission in an embodiment of the present invention.

[0017] In the figure:

[0018] 1. Oil supply assembly; 11. Oil supply pump; 12. Oil storage tank;

[0019] 2. First control assembly; 21. First control oil circuit; 211. Oil inlet pipeline; 212. Oil outlet pipeline; 22. First double-acting hydraulic cylinder; 23. First accumulator; 24. First pressure regulating valve; 25. First pressure sensor; 26. Second pressure sensor; 27. First check valve; 28. Second check valve; 29. ​​Third pressure sensor;

[0020] 3. Second control assembly; 31. Second control oil circuit; 32. Second double-acting hydraulic cylinder; 33. Second accumulator;

[0021] 4. third control assembly; 41. third control oil circuit; 42. first control valve;

[0022] 5. Pressure regulating assembly; 51. Pressure regulating pipeline; 52. Third one-way valve; 53. Overflow valve;

[0023] 6. Controller. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] like Figure 1 As shown, this embodiment provides a dry dual-clutch transmission hydraulic control system, which includes an oil supply component 1, a first control component 2, a second control component 3 and a third control component 4. Among them, the first control component 2 includes a first control oil circuit 21 and a first double-acting hydraulic cylinder 22 and a first accumulator 23 arranged on the first control oil circuit 21, the inlet of the first control oil circuit 21 and the oil outlet of the oil supply component 1 can be connected and disconnected, the outlet of the first control oil circuit 21 is connected to the first double-acting hydraulic cylinder 22, and the first accumulator 23 can alternately supply oil to the first double-acting hydraulic cylinder 22 with the first control oil circuit 21; the second control component 3 includes a second control oil circuit 31 and a second double-acting hydraulic cylinder 32 and a second accumulator 33 arranged on the second control oil circuit 31; the inlet of the second control oil circuit 31 and the oil outlet of the oil supply component 1 can be connected and disconnected, the outlet of the second control oil circuit 31 is connected to the second double-acting hydraulic cylinder 32, and the second accumulator 33 can alternately supply oil to the second double-acting hydraulic cylinder 32 with the second control oil circuit 31.

[0029] The dry dual-clutch transmission hydraulic control system of the present invention can supply oil to the first double-acting hydraulic cylinder 22 alternately through the oil supply component 1 and the first accumulator 23, and the oil supply component 1 can also supply oil to the second double-acting hydraulic cylinder 32 alternately with the second accumulator 33. At the same time, the first double-acting hydraulic cylinder 22 can be connected to the first clutch, and the second double-acting hydraulic cylinder 32 can be connected to the second clutch. In this way, when the first clutch or the second clutch is in the engaged state, when shifting gears, the continuous high-load operation of the oil supply component 1 is avoided, and the energy consumption is reduced. At the same time, the first accumulator 23 and the second accumulator 33 can effectively absorb the pressure vibration and impact during the shifting process; the third control component 4 is set to supply oil to the gear mechanism of the dry dual-clutch transmission, so that the lubrication and cooling of the gear mechanism of the dry dual-clutch transmission can be met. In addition, the present invention replaces the prior art method of directly driving by the engine with a method of alternately supplying oil to the first double-acting hydraulic cylinder 22 through the oil supply assembly 1 and the first accumulator 23, and alternately supplying oil to the second double-acting hydraulic cylinder 32 through the oil supply assembly 1 and the second accumulator 33. This driving method effectively solves the problems of large energy loss and poor stability caused by the prior art method of directly driving by the engine.

[0030] In some embodiments, the first control assembly 2 further includes a first pressure regulating valve 24 disposed on the first control oil circuit 21. The first pressure regulating valve 24 is located between the first accumulator 23 and the first double-acting hydraulic cylinder 22. In this way, the pressure value in the first control oil circuit 21 can be adjusted by the first pressure regulating valve 24.

[0031] Further, the first control oil circuit 21 includes an oil inlet pipeline 211 and an oil outlet pipeline 212. The inlet of the oil inlet pipeline 211 is connected to the oil outlet of the oil supply assembly 1, and the outlet of the oil inlet pipeline 211 is connected to the inlet of the first oil chamber of the first pressure regulating valve 24, the outlet of the first oil chamber is connected to the first cavity of the first double-acting hydraulic cylinder 22, the second cavity of the first double-acting hydraulic cylinder 22 is connected to the inlet of the oil outlet pipeline 212, the outlet of the oil outlet pipeline 212 is connected to the inlet of the second oil chamber of the first pressure regulating valve 24, and the outlet of the second oil chamber is connected to the oil inlet of the oil supply assembly 1. With such an arrangement, the first double-acting hydraulic cylinder 22 can be controlled by adjusting the pressure between the first oil chamber and the second oil chamber. Since the first double-acting hydraulic cylinder 22 is connected to the first clutch, the engagement or separation of the first clutch can be controlled by the first double-acting hydraulic cylinder 22.

[0032] Specifically, the first control assembly 2 includes a first pressure sensor 25 and a second pressure sensor 26. The first pressure sensor 25 is arranged on a pipeline connecting the first oil chamber and the first cavity of the first double-acting hydraulic cylinder 22, so that the pressure value entering the first cavity of the first double-acting hydraulic cylinder 22 can be detected in real time through the first pressure sensor 25; and the second pressure sensor 26 is arranged on the oil outlet pipeline 212, so that the pressure value of the hydraulic oil flowing from the second cavity of the first double-acting hydraulic cylinder 22 to the oil outlet pipeline 212 can be detected in real time.

[0033] In some embodiments, the first control component 2 further includes a first one-way valve 27 and a second one-way valve 28. The first one-way valve 27 is arranged on a pipeline connecting the outlet of the second oil chamber and the oil inlet of the oil supply component 1, so as to prevent the hydraulic oil in the oil supply component 1 from flowing back into the second oil chamber, thereby ensuring the stability and reliability of the operation of the hydraulic control system of the dry dual-clutch transmission; similarly, the second one-way valve 28 is arranged on a pipeline connecting the pressure relief port of the first pressure regulating valve 24 and the oil inlet of the oil supply component 1, so as to prevent the hydraulic oil in the oil supply component 1 from flowing back into the first pressure regulating valve 24, thereby ensuring the stability and reliability of the operation of the hydraulic control system of the dry dual-clutch transmission.

[0034] In this embodiment, the first control assembly 2 further includes a third pressure sensor 29 disposed on the first control oil circuit 21. The third pressure sensor 29 is located between the first accumulator 23 and the oil outlet of the oil supply assembly 1, so that the third pressure sensor 29 can detect the pressure of the hydraulic oil flowing out of the first accumulator 23 in real time.

[0035] Optionally, the first pressure sensor 25 is preset with a first pressure value, the second pressure sensor 26 is preset with a second pressure value, and the third pressure sensor 29 is preset with a third pressure value. The first control assembly 2 has a first working state and a second working state. In the first working state, the pressure value in the first control oil circuit 21 is less than the first pressure value, and the oil supply assembly 1 supplies oil to the first accumulator 23. In the second working state, the pressure value in the first control oil circuit 21 is greater than the second pressure value, and the oil supply assembly 1 stops supplying oil to the first accumulator 23.

[0036] The first pressure value is greater than the second pressure value and the third pressure value.

[0037] It should be noted that the structure of the second control component 3 is the same as that of the first control component 2, which will not be described in detail here.

[0038] Specifically, the third control assembly 4 includes a third control oil circuit 41 and a first control valve 42 disposed on the third control oil circuit 41. The first control valve 42 can control the on-off of the third control oil circuit 41, the inlet of the third control oil circuit 41 is connected to the oil outlet of the oil supply assembly 1, and the outlet of the third control oil circuit 41 can supply oil to the gear mechanism of the dry dual-clutch transmission, that is, lubricate and cool the gear mechanism of the dry dual-clutch transmission, thereby ensuring the smooth operation of the dry dual-clutch transmission.

[0039] In some embodiments, the oil supply assembly 1 includes an oil supply pump 11 and an oil storage tank 12, the outlet of the oil storage tank 12 is connected to the inlet of the oil supply pump 11, and the inlet of the first control oil circuit 21, the inlet of the second control oil circuit 31, and the third control assembly 4 are all connected to the outlet of the oil supply pump 11 in a switchable manner. In this way, the hydraulic oil in the oil storage tank 12 can be transported to the first control oil circuit 21, the second control oil circuit 31, and the third control assembly 4 through the oil supply pump 11. Among them, the oil storage tank 12 has an oil inlet.

[0040] Optionally, the oil supply assembly 1 further includes a suction filter upstream of the oil supply pump 11 , and a pressure filter downstream of the oil supply pump 11 .

[0041] Specifically, the dry dual-clutch transmission hydraulic control system further includes a pressure regulating assembly 5, which includes a pressure regulating pipeline 51, a third one-way valve 52 and a relief valve 53 arranged on the pressure regulating pipeline 51, the inlet of the pressure regulating pipeline 51 is connected to the oil storage tank 12, the outlet of the pressure regulating pipeline 51 is connected to the outlet of the oil supply pump 11, the third one-way valve 52 is located between the oil storage tank 12 and the relief valve 53, and the pressure values ​​in the first control oil circuit 21, the second control oil circuit 31, and the third control assembly 4 are lower than the set pressure value of the relief valve 53. In this way, the relief valve 53 can ensure that the pressure values ​​in the first control oil circuit 21, the second control oil circuit 31, and the third control assembly 4 are lower than the set pressure value of the relief valve 53, thereby protecting the safe operation of the dry dual-clutch transmission hydraulic control system.

[0042] Specifically, the dry dual-clutch transmission hydraulic control system also includes a controller 6, and the first control oil circuit 21, the second control oil circuit 31 and the third control component 4 are all electrically connected to the controller 6, and the controller 6 can control the on and off of the first control oil circuit 21, the second control oil circuit 31 and the third control component 4.

[0043] Optionally, the first pressure sensor 25 , the second pressure sensor 26 , and the third pressure sensor 29 are all electrically connected to the controller 6 , and the controller 6 can receive pressure information detected by the first pressure sensor 25 , the second pressure sensor 26 , and the third pressure sensor 29 .

[0044] The dry dual-clutch transmission hydraulic control system designed by the present invention adopts the form of coordinated operation of the oil supply pump, the first accumulator and the second accumulator. First, the oil supply pump driving mode can well solve the problems of large losses and poor stability caused by direct engine driving, thereby improving the working efficiency of the system. Secondly, the first accumulator and the second accumulator can effectively absorb the pressure vibration and impact during the gear shifting process, enhance the stability of the clutch operation process, reduce the outlet pressure pulsation of the pump, and provide the necessary flow in the event of a fault, playing an important role in protecting the necessary operation of the system fault.

[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A dry dual-clutch transmission hydraulic control system, characterized in that: include: Oil supply assembly (1); A first control assembly (2), comprising a first control oil circuit (21), a first double-acting hydraulic cylinder (22) and a first accumulator (23) arranged on the first control oil circuit (21), wherein the inlet of the first control oil circuit (21) and the oil outlet of the oil supply assembly (1) are connected in an on-off manner, the outlet of the first control oil circuit (21) and the first double-acting hydraulic cylinder (22) are connected, the first accumulator (23) and the first control oil circuit (21) can alternately supply oil to the first double-acting hydraulic cylinder (22), and the first double-acting hydraulic cylinder (22) is connected to the first clutch of the dry dual-clutch transmission; A second control assembly (3), comprising a second control oil circuit (31), a second double-acting hydraulic cylinder (32) and a second accumulator (33) arranged on the second control oil circuit (31), wherein the inlet of the second control oil circuit (31) and the oil outlet of the oil supply assembly (1) are connected in an on-off manner, the outlet of the second control oil circuit (31) and the second double-acting hydraulic cylinder (32) are connected, the second accumulator (33) and the second control oil circuit (31) can alternately supply oil to the second double-acting hydraulic cylinder (32), and the second double-acting hydraulic cylinder (32) is connected to the second clutch of the dry dual-clutch transmission; The third control component (4) is connected to the oil outlet of the oil supply component (1) in an on-off manner and is capable of supplying oil to the gear mechanism of the dry dual-clutch transmission.

2. The dry dual clutch transmission hydraulic control system according to claim 1, characterized in that: The first control component (2) further comprises a first pressure regulating valve (24) arranged on the first control oil circuit (21), the first pressure regulator being located between the first accumulator (23) and the first double-acting hydraulic cylinder (22), and the first pressure regulating valve (24) being capable of adjusting the pressure value in the first control oil circuit (21).

3. The dry dual clutch transmission hydraulic control system according to claim 2, characterized in that: The first control oil circuit (21) comprises an oil inlet pipeline (211) and an oil outlet pipeline (212); the inlet of the oil inlet pipeline (211) is connected to the oil outlet of the oil supply assembly (1); the outlet of the oil inlet pipeline (211) is connected to the inlet of the first oil chamber of the first pressure regulating valve (24); the outlet of the first oil chamber is connected to the first cavity of the first double-acting hydraulic cylinder (22); the second cavity of the first double-acting hydraulic cylinder (22) is connected to the inlet of the oil outlet pipeline (212); the outlet of the oil outlet pipeline (212) is connected to the inlet of the second oil chamber of the first pressure regulating valve (24); and the outlet of the second oil chamber is connected to the oil inlet of the oil supply assembly (1).

4. The dry dual clutch transmission hydraulic control system according to claim 3, characterized in that: The first control component (2) comprises a first pressure sensor (25) and a second pressure sensor (26), wherein the first pressure sensor (25) is arranged on a pipeline connecting the first oil chamber and the first cavity of the first double-acting hydraulic cylinder (22), and the second pressure sensor (26) is arranged on the oil outlet pipeline (212).

5. The dry dual clutch transmission hydraulic control system according to claim 3, characterized in that: The first control component (2) further comprises a first one-way valve (27) and a second one-way valve (28), wherein the first one-way valve (27) is arranged on a pipeline connecting the outlet of the second oil chamber and the oil inlet of the oil supply component (1), and the second one-way valve (28) is arranged on a pipeline connecting the pressure relief port of the first pressure regulating valve (24) and the oil inlet of the oil supply component (1).

6. The dry dual clutch transmission hydraulic control system according to claim 1, characterized in that: The first control component (2) further comprises a third pressure sensor (29) arranged on the first control oil circuit (21); the third pressure sensor (29) is located between the first accumulator (23) and the oil outlet of the oil supply component (1).

7. The dry dual clutch transmission hydraulic control system according to claim 1, characterized in that: The third control assembly (4) comprises a third control oil circuit (41) and a first control valve (42) arranged on the third control oil circuit (41); the first control valve (42) is capable of controlling the on-off of the third control oil circuit (41); the inlet of the third control oil circuit (41) is connected to the oil outlet of the oil supply assembly (1); and the outlet of the third control oil circuit (41) is capable of supplying oil to the gear mechanism of the dry dual-clutch transmission.

8. The dry dual clutch transmission hydraulic control system according to claim 1, characterized in that: The oil supply assembly (1) comprises an oil supply pump (11) and an oil storage tank (12); the outlet of the oil storage tank (12) is connected to the inlet of the oil supply pump (11); the inlet of the first control oil circuit (21), the inlet of the second control oil circuit (31), and the third control assembly (4) are all connected to the outlet of the oil supply pump (11) in a disconnectable manner.

9. The dry dual clutch transmission hydraulic control system according to claim 8, characterized in that: The dry dual-clutch transmission hydraulic control system further comprises a pressure regulating assembly (5), the pressure regulating assembly (5) comprising a pressure regulating pipeline (51) and a third one-way valve (52) and a relief valve (53) arranged on the pressure regulating pipeline (51); the inlet of the pressure regulating pipeline (51) is connected to the oil storage tank (12); the outlet of the pressure regulating pipeline (51) is connected to the outlet of the oil supply pump (11); the third one-way valve (52) is located between the oil storage tank (12) and the relief valve (53); and the pressure values ​​in the first control oil circuit (21), the second control oil circuit (31) and the third control assembly (4) are lower than the set pressure value of the relief valve (53).

10. The dry dual clutch transmission hydraulic control system according to any one of claims 1 to 9, characterized in that: The dry dual-clutch transmission hydraulic control system further comprises a controller (6); the first control oil circuit (21), the second control oil circuit (31) and the third control component (4) are all electrically connected to the controller (6); and the controller (6) is capable of controlling the on / off of the first control oil circuit (21), the second control oil circuit (31) and the third control component (4).

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