Vehicle and hydraulic control system thereof

Abstract

The utility model provides a vehicle and a hydraulic control system thereof, the control system comprises a sensor module, an oil supply module, a hydraulic mount and a pressure adjusting module, the pressure adjusting module is used for connecting and / or disconnecting an oil supply channel between the oil supply module and the hydraulic mount when receiving a pressure adjusting signal sent by a controller so as to adjust the cavity pressure of the hydraulic mount, and the pressure adjusting module is used for adjusting the pressure of the hydraulic mount. Under different driving working conditions, the pressure adjusting module is controlled to be opened and / or closed according to the pressure adjusting signal, so that an oil supply channel between the oil supply module and the hydraulic mount is opened and / or closed, the amount of fuel oil entering the hydraulic mount is adjusted, the rigidity requirement and the damping requirement of the hydraulic mount are dynamically adjusted, and the service life of the hydraulic mount is prolonged. And the driving performance requirements of users on different driving working conditions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle and a hydraulic control system thereof. Background Art

[0002] In the prior art, the solenoid valve on the hydraulic mount is opened or closed according to different vehicle operating conditions to energize the liquid in the hydraulic mount to achieve the requirements of low stiffness with no damping or high stiffness with large damping. However, during the adjustment process using the above method, the dynamic characteristics of the hydraulic mount cannot be adjusted in real time, and the user's changing vehicle driving performance requirements cannot be met. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, one purpose of the present utility model is to propose a hydraulic control system for a vehicle, which, under different driving conditions, controls the opening and / or closing of a pressure regulation module according to a pressure regulation signal, so as to open and / or close the oil supply channel between the oil supply module and the hydraulic suspension, adjust the amount of fuel entering the hydraulic suspension, and dynamically adjust the stiffness and damping requirements of the hydraulic suspension to meet the user's driving performance requirements for different driving conditions.

[0005] Therefore, a second object of the present invention is to provide a vehicle.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the first aspect of the present utility model proposes a hydraulic control system for a vehicle, wherein the control system includes: a sensor module for obtaining the operating status signal of the vehicle; a fuel supply module, the fourth end of the fuel supply module is connected to the sensor module for providing fuel; a hydraulic suspension, one end of the hydraulic suspension is connected to the sensor module for isolating the vibration transmission of the vehicle; a pressure regulating module, the pressure regulating module is respectively connected to the fuel supply module and the hydraulic suspension, and is used to open and / or close the oil supply channel between the fuel supply module and the hydraulic suspension when receiving a pressure regulation signal from a controller to adjust the cavity pressure of the hydraulic suspension.

[0007] According to the hydraulic control system of the vehicle in the embodiment of the present utility model, a pressure regulating module is set between the oil supply module and the hydraulic suspension. Under different driving conditions, the pressure regulating module is controlled to be opened and / or closed according to the pressure regulating signal to conduct and / or cut off the oil supply channel between the oil supply module and the hydraulic suspension, adjust the amount of fuel entering the hydraulic suspension, and dynamically adjust the stiffness requirement and damping requirement of the hydraulic suspension to meet the user's driving performance requirements under different driving conditions.

[0008] In some embodiments, the fuel supply module includes: a fuel tank, a first end of the fuel tank is connected to the first end of the pressure regulating module, and a second end of the fuel tank is connected to the sixth end of the pressure regulating module, for storing fuel; an oil pump, a first end of the oil pump is connected to the third end of the fuel tank, and a second end of the oil pump is connected to the fifth end of the pressure regulating module, for delivering the fuel in the fuel tank to the pressure regulating module; an engine, one end of the engine is connected to the third end of the oil pump, for receiving a drive signal and controlling the operation of the oil pump.

[0009] In some embodiments, the pressure regulating module includes: a first switch module, the first end of the first switch module is connected to the second end of the oil tank, the second end and the third end of the first switch module are connected to one end of the hydraulic suspension, and the fourth end of the first switch module is connected to the second end of the oil pump, for conducting and / or shutting off the first oil supply channel between the oil supply module and the hydraulic suspension; a second switch module, the first end of the second switch module is connected to the first end of the oil tank, and the second end of the second switch module is connected to the other end of the hydraulic suspension, for conducting the second oil supply channel between the oil supply module and the hydraulic suspension.

[0010] In some embodiments, the first switch module includes: a first switch valve, one end of the first switch valve is connected to one end of the hydraulic mount, and the other end of the first switch valve is connected to the second end of the oil pump, and is used to open the first switch valve to a first preset opening when receiving a first pressurization signal of a first working condition, and conduct the first oil supply channel between the oil pump and the hydraulic mount; when receiving a first preset pressure signal of the first working condition, close the first switch valve and shut off the first oil supply channel between the oil pump and the hydraulic mount; or when receiving a second pressurization signal of a second working condition, open the first switch valve to a second preset opening, and conduct the first oil supply channel between the oil pump and the hydraulic mount; when receiving a second preset pressure signal of the second working condition, close the first switch valve and shut off the first oil supply channel between the oil pump and the hydraulic mount. The first switch valve cuts off the first oil supply channel between the oil pump and the hydraulic mount, wherein the first preset pressure signal is greater than or equal to the second preset pressure signal, and the first preset opening is greater than or equal to the second preset opening; the second switch valve, one end of the second switch valve is connected to one end of the hydraulic mount, and the other end of the second switch valve is connected to the second end of the oil tank, and is used to open the second switch valve to the third preset opening when receiving the third preset pressure signal of the first working condition, and close the second switch valve when receiving the fourth preset pressure signal of the first working condition to adjust the fuel amount of the hydraulic mount, wherein the second preset opening is greater than or equal to the third preset opening, and the third preset pressure signal is greater than the fourth preset pressure signal.

[0011] In some embodiments, the second switch module includes: a third switch valve, one end of the third switch valve is connected to the first end of the oil tank, and the other end of the third switch valve is connected to the other end of the hydraulic mount, and is used to open the third switch valve to a fourth preset opening when receiving a pressure reduction signal, thereby connecting the second oil supply channel between the oil tank and the hydraulic mount.

[0012] In some embodiments, the sensor module includes: a pressure sensor connected to one end of the hydraulic mount and configured to detect a pressure signal of the hydraulic mount.

[0013] In some embodiments, the sensor module further includes: a vibration sensor connected to the other end of the engine and configured to detect a vibration frequency signal and a vibration amplitude signal of the engine.

[0014] In some embodiments, the sensor module further includes: a speed sensor connected to the other end of the engine for detecting the engine speed signal, and / or the speed sensor is arranged on the vehicle for detecting the vehicle speed signal.

[0015] In some embodiments, the sensor module further includes: a radar sensor, which is disposed on the vehicle and is configured to detect an image signal of the vehicle.

[0016] In order to achieve the above-mentioned object, an embodiment of a second aspect of the present utility model provides a vehicle, which includes the hydraulic control system of the vehicle described in the above-mentioned embodiment.

[0017] According to the vehicle of the embodiment of the present utility model, a pressure regulating module is set between the oil supply module and the hydraulic suspension. Under different driving conditions, the pressure regulating module is controlled to open and / or close according to the pressure regulating signal to conduct and / or shut off the oil supply channel between the oil supply module and the hydraulic suspension, adjust the amount of fuel entering the hydraulic suspension, and dynamically adjust the stiffness requirement and damping requirement of the hydraulic suspension to meet the user's driving performance requirements under different driving conditions.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a diagram showing the stiffness variation of a hydraulic mount according to an embodiment of the present utility model;

[0021] Figure 2 This is a damping variation diagram of a hydraulic mount according to an embodiment of the present utility model;

[0022] Figure 3 is a structural block diagram of a hydraulic control system for a vehicle according to one embodiment of the present utility model;

[0023] Figure 4 1 is a hardware connection diagram of a hydraulic control system of a vehicle according to an embodiment of the present utility model;

[0024] Figure 5 It is a structural block diagram of a vehicle according to one embodiment of the present utility model.

[0025] Reference numerals:

[0026] A hydraulic control system 100 for a vehicle;

[0027] Oil supply module 11; pressure regulating module 12; first switch module 13; second switch module 14;

[0028] Engine 1; oil pump 2; first on-off valve 3; pressure sensor 4; third on-off valve 5; second on-off valve 6; oil tank 7; hydraulic mount 8; vibration sensor 9;

[0029] Vehicle 110. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0031] At present, with the rapid development of society, users have higher and higher requirements for vehicle ride comfort, so the powertrain shock absorption system is particularly important. Common vibration reduction systems include passive rubber suspension, hydraulic suspension, semi-active control suspension and active suspension. Among them, passive rubber suspension will have dynamic hardening problems at high frequencies, and its dynamic characteristics cannot be adjusted in real time, making the traditional passive powertrain suspension unable to meet the requirements of isolating powertrain vibration well; while semi-active suspension can more effectively isolate the vibration of the powertrain from being transmitted to the cab. Semi-active suspension can achieve optimal damping characteristics of low and high frequency vibration isolation through semi-active control within a wider frequency band, thereby isolating the transmission of powertrain vibration.

[0032] The main spring of the hydraulic suspension will expand and deform in the process of pumping liquid, such as Figure 1 As shown, the expansion characteristics of the rubber suspension can be expressed by the volume stiffness K1 of the liquid chamber, which is defined as K1 = △P / △V, and Figure 2 As shown, the hydraulic characteristics of the rubber mount can be expressed in terms of damping.

[0033] Under low-frequency (0-20Hz) and large-amplitude working conditions, the liquid in the hydraulic mount 8 flows back and forth in the upper and lower liquid chambers through the inertial channel, generating large energy losses along the way and local energy flow during the flow process, resulting in a large damping effect on the mount, and the volume of the liquid chamber of the hydraulic mount 8 is almost constant; under high-frequency (20-250Hz) and small-amplitude working conditions, due to the large resistance in the inertial channel and the inertia of the liquid column, the damping liquid almost does not pass through the inertial channel flow channel, resulting in an increase in the volume stiffness of the liquid chamber of the hydraulic mount 8, a large dynamic stiffness of the hydraulic mount 8, and thus dynamic hardening, and poor high-frequency vibration isolation performance.

[0034] Reference below Figure 1-Figure 4 A hydraulic control system 100 for a vehicle according to an embodiment of the present invention will be described.

[0035] like Figure 3 As shown, the hydraulic control system 100 of the vehicle of the embodiment of the present utility model includes: a sensor module (not shown), an oil supply module 11, a hydraulic mount 8 and a pressure regulating module 12, wherein,

[0036] The sensor module is used to obtain the vehicle's operating status signal; the fourth end of the fuel supply module 11 is connected to the sensor module for providing fuel; one end of the hydraulic mount 8 is connected to the sensor module for isolating the vibration transmission of the vehicle; the pressure regulating module 12, the pressure regulating module 12 is respectively connected to the fuel supply module 11 and the hydraulic mount 8, and is used to open and / or close the fuel supply channel between the fuel supply module 11 and the hydraulic mount 8 when receiving the pressure regulation signal sent by the controller, so as to adjust the cavity pressure of the hydraulic mount 8.

[0037] In an embodiment, after the vehicle is started, an operating status signal of the vehicle is obtained, and it is determined based on the operating status signal whether the vehicle is in an idling condition or a driving condition, as well as a pressure signal of the hydraulic mount 8 under the driving condition. Under different driving conditions, the controller sends a pressure adjustment signal based on the difference between the real-time pressure signal and the preset pressure signal corresponding to the different conditions, controls the pressure adjustment module 12 to open to the corresponding opening, and / or controls the pressure adjustment module 12 to close, thereby opening and / or closing the oil supply channel between the oil supply module 11 and the hydraulic mount 8, adjusting the amount of fuel entering the hydraulic mount 8, and adjusting the cavity pressure inside the hydraulic mount 8 to match the performance requirements of different driving conditions, so as to dynamically adjust the stiffness requirements and damping requirements of the hydraulic mount 8.

[0038] According to the hydraulic control system 100 of the vehicle in the embodiment of the present utility model, a pressure regulating module 12 is set between the oil supply module 11 and the hydraulic suspension 8. Under different driving conditions, the pressure regulating module 12 is controlled to be opened and / or closed according to the pressure regulating signal to open and / or close the oil supply channel between the oil supply module 11 and the hydraulic suspension 8, adjust the amount of fuel entering the hydraulic suspension 8, and dynamically adjust the stiffness and damping requirements of the hydraulic suspension 8 to meet the user's driving performance requirements for different driving conditions.

[0039] In some embodiments, as Figure 4 As shown, the fuel supply module 11 includes: a fuel tank 7, a fuel pump 2, and an engine 1, wherein:

[0040] The first end of the fuel tank 7 is connected to the first end of the pressure regulating module 12, and the second end of the fuel tank 7 is connected to the sixth end of the pressure regulating module 12, for storing fuel; the first end of the fuel pump 2 is connected to the third end of the fuel tank 7, and the second end of the fuel pump 2 is connected to the fifth end of the pressure regulating module 12, for delivering the fuel in the fuel tank 7 to the pressure regulating module 12; one end of the engine 1 is connected to the third end of the fuel pump 2, for receiving a driving signal and controlling the operation of the fuel pump 2.

[0041] In an embodiment, the oil pump 2 is integrated on the engine 1. The engine 1 drives the oil pump 2 to pump fuel according to a driving signal, and is connected to the hydraulic suspension 8 through the pressure regulating module 12 to provide fuel for the hydraulic suspension 8. The oil pump 2 can also pump high-pressure oil to the engine 1.

[0042] In some embodiments, as Figure 4 As shown, the pressure regulating module 12 includes: a first switch module 13 and a second switch module 14, wherein:

[0043] The first end of the first switch module 13 is connected to the second end of the oil tank 7, the second end and the third end of the first switch module 13 are connected to one end of the hydraulic mount 8, and the fourth end of the first switch module 13 is connected to the second end of the oil pump 2, for conducting and / or shutting off the first oil supply channel between the oil supply module 11 and the hydraulic mount 8; the first end of the second switch module 14 is connected to the first end of the oil tank 7, and the second end of the second switch module 14 is connected to the other end of the hydraulic mount 8, for conducting the second oil supply channel between the oil supply module 11 and the hydraulic mount 8.

[0044] In some embodiments, the first switch module 13 includes: a first switch valve 3 and a second switch valve 6, wherein:

[0045] One end of the first switch valve 3 is connected to one end of the hydraulic mount 8, and the other end of the first switch valve 3 is connected to the second end of the oil pump 2, and is used to open the first switch valve 3 to the first preset opening when receiving the first pressurization signal of the first working condition, and conduct the first oil supply channel between the oil pump 2 and the hydraulic mount 8; when receiving the first preset pressure signal of the first working condition, close the first switch valve 3 and shut off the first oil supply channel between the oil pump 2 and the hydraulic mount 8; or, when receiving the second pressurization signal of the second working condition, open the first switch valve 3 to the second preset opening, and conduct the first oil supply channel between the oil pump 2 and the hydraulic mount 8; when receiving the second preset pressure signal of the second working condition, close the first switch valve 3 and shut off the first oil supply channel between the oil pump 2 and the hydraulic mount 8, wherein the first preset pressure signal is greater than or equal to the second preset pressure signal, and the first preset opening is greater than or equal to the second preset opening.

[0046] One end of the second switch valve 6 is connected to one end of the hydraulic mount 8, and the other end of the second switch valve 6 is connected to the second end of the fuel tank 7. It is used to open the second switch valve 6 to the third preset opening when receiving the third preset pressure signal of the first working condition, and close the second switch valve 6 when receiving the fourth preset pressure signal of the first working condition. The second switch valve 6 controls the oil supply pressure and releases pressure when the oil supply pressure exceeds the threshold value to adjust the fuel amount of the hydraulic mount 8, wherein the second preset opening is greater than or equal to the third preset opening, and the third preset pressure signal is greater than the fourth preset pressure signal.

[0047] In the embodiment, when the vehicle is in the first operating condition, i.e., the low-frequency and large-amplitude operating condition, the controller sends a first pressurizing signal to control the first switch valve 3 to open to a larger opening, i.e., a first preset opening, and connect the first oil supply channel between the oil pump 2 and the hydraulic mount 8. The oil pump 2 pumps the fuel into the hydraulic mount 8 through the first oil supply channel, thereby increasing the fuel pressure in the liquid chamber of the hydraulic mount 8, thereby increasing the volume stiffness and damping of the liquid chamber of the hydraulic mount 8, and utilizing the large damping characteristics to absorb the impact from the road surface, thereby improving the transmission of road vibration to the powertrain. When the cavity pressure of the hydraulic mount 8 reaches the first preset pressure of the first operating condition, the controller sends a first preset pressure signal to control the first switch valve 3 to close, thereby shutting off the first oil supply channel between the oil pump 2 and the hydraulic mount 8, thereby achieving the powertrain's requirements for low-frequency, high stiffness, and high damping of the hydraulic mount 8, and reducing vibration impact.

[0048] Since the first switch valve 3 is opened to a larger opening, that is, the first preset opening, the amount of fuel in the first oil supply channel may suddenly increase, causing the cavity pressure of the hydraulic mount 8 to exceed the first preset pressure. At this time, the controller sends a third preset pressure signal to control the second switch valve 6 to open to the third preset opening, and the excess fuel in the first oil supply channel flows back to the fuel tank 7 through the second switch valve 6; when the cavity pressure of the hydraulic mount 8 is less than the first preset pressure signal, the controller sends a fourth preset pressure signal to control the closing of the second switch valve 6. By setting the second switch valve 6, the oil supply pressure is limited.

[0049] When the vehicle is in the second working condition, that is, the high-frequency and small-amplitude working condition, the controller sends a second pressurization signal to control the first switch valve 3 to open to a smaller opening, that is, the second preset opening, and connect the first oil supply channel between the oil pump 2 and the hydraulic mount 8. The oil pump 2 pumps the fuel into the hydraulic mount 8 through the first oil supply channel to reduce the volume stiffness and damping of the liquid chamber of the hydraulic mount 8 and improve the high-frequency vibration isolation performance; when the second preset pressure of the second working condition is reached, the controller sends a second preset pressure signal to control the first switch valve 3 to close, and shut off the first oil supply channel between the oil pump 2 and the hydraulic mount 8, so as to realize the powertrain's requirements for high-frequency small stiffness and small damping of the hydraulic mount 8, avoid dynamic hardening, and improve high-frequency vibration isolation performance.

[0050] In some embodiments, the second switch module 14 includes: a third switch valve 5, wherein:

[0051] One end of the third switch valve 5 is connected to the first end of the fuel tank 7, and the other end of the third switch valve 5 is connected to the other end of the hydraulic mount 8. When receiving a pressure reduction signal, the third switch valve 5 is opened to a fourth preset opening, and the second oil supply channel between the fuel tank 7 and the hydraulic mount 8 is connected to adjust the pump oil pipeline pressure and the suspension cavity pressure to control the fuel reflux.

[0052] In the embodiment, when the vehicle is in a first working condition, i.e., a high-frequency and small-amplitude working condition, and is transitioning to a second working condition, i.e., a high-frequency and small-amplitude working condition, since the second switch valve 6 provided in the first oil supply channel is a one-way switch valve, the fuel in the hydraulic mount 8 cannot be discharged through the second switch valve 6, and the volume of the liquid chamber of the hydraulic mount 8 is almost constant, the controller sends a pressure reduction signal to control the third switch valve 5 provided in the second oil supply channel to open to a fourth preset opening, thereby connecting the second oil supply channel between the fuel tank 7 and the hydraulic mount 8, and the excess fuel in the hydraulic mount 8 flows back to the fuel tank 7 through the second oil supply channel, so as to reduce the volume stiffness and damping of the liquid chamber of the hydraulic mount 8, and the dynamic stiffness of the hydraulic mount 8 is simultaneously reduced, thereby improving the high-frequency vibration isolation performance.

[0053] In some embodiments, the sensor module includes: a pressure sensor 4, which is connected to one end of the hydraulic mount 8. The pressure sensor 4 can also be arranged inside the hydraulic mount 8. By arranging the pressure sensor 4 at the front end or inside the hydraulic mount 8, the pressure signal of the hydraulic mount 8 is detected and the pressure signal is transmitted to the controller in real time.

[0054] In some embodiments, the sensor module also includes: a vibration sensor 9, which is connected to the other end of the engine 1. The engine 1 can also be integrated with a vibration sensor to detect the vibration frequency signal and vibration amplitude signal of the engine 1. During the structural debugging and vehicle matching stage of the hydraulic mount 8, the different damping peaks corresponding to different liquid chamber cavity pressures are matched with the vibration frequency signal and vibration amplitude signal of the engine and written into the ECM (Engine Control Module) functional layer.

[0055] In some embodiments, the sensor module further includes: a speed sensor (not shown in the figure), which is connected to the other end of the engine 1 for detecting the speed signal of the engine 1, and / or a speed sensor is set on the vehicle for detecting the vehicle speed signal. When the vehicle is started, the ECM collects the engine speed and / or the vehicle speed signal. When the vehicle speed is 0 km / h, it is considered that the vehicle is in an idle condition, and the hydraulic mount 8 is approximately a passive rubber mount. The rubber main spring has a low stiffness and isolates the powertrain vibration from being transmitted to the cab; when the vehicle speed is greater than 0 km / h, it is considered that the vehicle is in a driving condition, and the controller, i.e., the PDCU (Power Distribution Control Unit), analyzes the signal detected by the vibration sensor to determine whether it is in the first condition, i.e., the low-frequency and large-amplitude condition, or the second condition, i.e., the high-frequency and small-amplitude condition.

[0056] In some embodiments, the sensor module also includes: a radar sensor, which is arranged on the vehicle and is used to detect the image signal of the vehicle. When the vehicle is started, the VCU (Vehicle Control Unit) collects the image signal around the vehicle through the radar sensor to determine the vehicle speed based on the image signal. Similarly, the PDCU analyzes the signal detected by the radar sensor to determine the working condition.

[0057] According to the hydraulic control system 100 of the vehicle in the embodiment of the present utility model, a pressure regulating module 12 is set between the oil supply module 11 and the hydraulic suspension 8. Under different driving conditions, the pressure regulating module 12 is controlled to be opened and / or closed according to the pressure regulating signal to open and / or close the oil supply channel between the oil supply module 11 and the hydraulic suspension 8, adjust the amount of fuel entering the hydraulic suspension 8, and dynamically adjust the stiffness and damping requirements of the hydraulic suspension 8 to meet the user's driving performance requirements for different driving conditions.

[0058] The following combination Figure 5 A vehicle 110 of the present invention is described.

[0059] like Figure 5 As shown, a vehicle 110 of the present invention includes the vehicle hydraulic control system 100 of the above embodiment.

[0060] According to the vehicle 110 of the embodiment of the present utility model, by setting a pressure regulating module 12 between the oil supply module 11 and the hydraulic suspension 8, under different driving conditions, the pressure regulating module 12 is controlled to be opened and / or closed according to the pressure regulating signal, so as to open and / or close the oil supply channel between the oil supply module 11 and the hydraulic suspension 8, adjust the amount of fuel entering the hydraulic suspension 8, and dynamically adjust the stiffness requirement and damping requirement of the hydraulic suspension 8 to meet the user's driving performance requirements for different driving conditions.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydraulic control system for a vehicle, characterized in that: include: A sensor module, configured to obtain a running status signal of the vehicle; a fuel supply module, wherein a fourth end of the fuel supply module is connected to the sensor module and is used to supply fuel; a hydraulic mount, one end of which is connected to the sensor module and is used to isolate vibration transmission of the vehicle; A pressure regulating module, which is respectively connected to the oil supply module and the hydraulic suspension, and is used to open and / or close the oil supply channel between the oil supply module and the hydraulic suspension when receiving a pressure regulation signal from a controller, so as to adjust the cavity pressure of the hydraulic suspension.

2. The vehicle hydraulic control system according to claim 1, characterized in that: The oil supply module includes: a fuel tank, a first end of the fuel tank being connected to the first end of the pressure regulating module, a second end of the fuel tank being connected to the sixth end of the pressure regulating module, and being used for storing fuel; an oil pump, wherein a first end of the oil pump is connected to the third end of the oil tank, and a second end of the oil pump is connected to the fifth end of the pressure regulating module, and is used to deliver the fuel in the oil tank to the pressure regulating module; An engine, one end of which is connected to the third end of the oil pump, is used to receive a driving signal and control the operation of the oil pump.

3. The hydraulic control system for a vehicle according to claim 2, characterized in that: The pressure regulating module includes: a first switch module, wherein a first end of the first switch module is connected to the second end of the oil tank, a second end and a third end of the first switch module are connected to one end of the hydraulic mount, and a fourth end of the first switch module is connected to the second end of the oil pump, and is used to open and / or close a first oil supply channel between the oil supply module and the hydraulic mount; A second switch module, wherein a first end of the second switch module is connected to a first end of the oil tank, and a second end of the second switch module is connected to the other end of the hydraulic mount, and is used to conduct a second oil supply channel between the oil supply module and the hydraulic mount.

4. The hydraulic control system for a vehicle according to claim 3, characterized in that: The first switch module includes: a first switch valve, one end of which is connected to one end of the hydraulic mount, and the other end of which is connected to the second end of the oil pump, for opening the first switch valve to a first preset opening when receiving a first pressurization signal of a first working condition, thereby connecting a first oil supply passage between the oil pump and the hydraulic mount; and closing the first switch valve when receiving a first preset pressure signal of the first working condition, thereby shutting off the first oil supply passage between the oil pump and the hydraulic mount, or, upon receiving a second pressurizing signal of a second working condition, opening the first on-off valve to a second preset opening, thereby connecting the first oil supply passage between the oil pump and the hydraulic mount; upon receiving a second preset pressure signal of the second working condition, closing the first on-off valve, thereby shutting off the first oil supply passage between the oil pump and the hydraulic mount, wherein the first preset pressure signal is greater than or equal to the second preset pressure signal, and the first preset opening is greater than or equal to the second preset opening; A second switch valve, one end of the second switch valve is connected to one end of the hydraulic mount, and the other end of the second switch valve is connected to the second end of the fuel tank, and is used to open the second switch valve to a third preset opening when receiving a third preset pressure signal of the first working condition, and close the second switch valve when receiving a fourth preset pressure signal of the first working condition to adjust the fuel amount of the hydraulic mount, wherein the second preset opening is greater than or equal to the third preset opening, and the third preset pressure signal is greater than the fourth preset pressure signal.

5. The hydraulic control system for a vehicle according to claim 3, characterized in that: The second switch module includes: A third switch valve, one end of the third switch valve is connected to the first end of the oil tank, and the other end of the third switch valve is connected to the other end of the hydraulic mount, and is used to open the third switch valve to a fourth preset opening when receiving a pressure reduction signal, thereby connecting the second oil supply channel between the oil tank and the hydraulic mount.

6. The hydraulic control system for a vehicle according to claim 2, wherein: The sensor module includes: A pressure sensor is connected to one end of the hydraulic mount and is used to detect a pressure signal of the hydraulic mount.

7. The hydraulic control system for a vehicle according to claim 6, wherein: The sensor module further includes: A vibration sensor is connected to the other end of the engine and is used to detect the vibration frequency signal and vibration amplitude signal of the engine.

8. The hydraulic control system for a vehicle according to claim 7, characterized in that: The sensor module further includes: A speed sensor connected to the other end of the engine for detecting a speed signal of the engine. And / or the speed sensor is arranged on the vehicle to detect the vehicle speed signal.

9. The hydraulic control system for a vehicle according to claim 7, wherein: The sensor module further includes: A radar sensor is provided on the vehicle and is used to detect an image signal of the vehicle.

10. A vehicle, characterized in that: include: A hydraulic control system for a vehicle as claimed in any one of claims 1 to 9.

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