Integrated vehicle body posture self-adaptive adjustment active suspension actuator and system

Abstract

The invention relates to the technical field of structural design of automobile active suspension systems, in particular to an integrated automobile body posture self-adaptive adjustment active suspension actuator and system. The system comprises a controller, a road surface unevenness detector, a shock absorber and an actuator, the actuator comprises a motor, a positive displacement pump, an electromagnetic valve and an integrated valve block, an output shaft of the motor is connected with an input shaft of the positive displacement pump, the integrated valve block is fixedly installed at an oil inlet and an oil outlet of the positive displacement pump, the electromagnetic valve is installed on the integrated valve block, and the integrated valve block comprises a valve body. The valve body is provided with an installation position used for being connected with a positive displacement pump, an oil inlet way and an oil outlet way which are parallel are formed in the valve body, and a stop valve, an overflow valve and an energy accumulator are installed on the valve body. The technical problems that in the prior art, due to the fact that an actuator is complex in structural form, the assembly difficulty is large, and the cooperative control difficulty is large during work are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of structural design of automobile active suspension systems, and in particular to an integrated vehicle body posture adaptively regulating active suspension actuator and system. Background Art

[0002] Active suspension is a system that uses electronic control technology to actively adjust the vehicle suspension system to improve the vehicle's driving smoothness, stability and safety. It can automatically adjust the stiffness and damping of the suspension according to road conditions, vehicle speed and other conditions to keep the vehicle in the best driving state. The existing hydraulic active suspension actuator motor, hydraulic pump and oil pipeline are arranged on the body, with low component integration and requiring a large layout space. In addition, due to the long oil pipeline, there is a certain pressure loss, and the risk of oil leakage caused by damage is also high.

[0003] In view of the above problems, the patent document with the authorization announcement number CN112440645B discloses a vehicle body posture adaptive adjustment active suspension actuator, system and control method. The actuator includes a motor, a hydraulic pump, an oil storage cylinder, an intermediate cylinder, a working cylinder, a piston head, a piston rod, an unloading valve, an inner throttle valve, an outer throttle valve, an inner accumulator and an outer accumulator; the piston head and the piston rod are assembled and installed in the working cylinder to divide the working cylinder into a restoring chamber with a rod and a compression chamber without a rod, and the unloading valve is installed on the piston head; the oil storage cylinder, the intermediate cylinder and the working cylinder are sequentially arranged from the outside to the inside, and form mutually isolated inner and outer oil storage chambers respectively; One side of the oil storage inner cavity is connected with the recovery cavity, and the other side is connected with the inner accumulator through the inner oil circuit, and an inner throttle valve is installed between the oil storage inner cavity and the inner oil circuit; one side of the oil storage outer cavity is connected with the compression cavity, and the other side is connected with the outer accumulator through the outer oil circuit, and an outer throttle valve is installed between the oil storage outer cavity and the outer oil circuit; the inner oil circuit and the outer oil circuit are respectively connected with the two oil ports of the hydraulic pump through the intermediate oil circuit, and the motor is coaxially connected with the hydraulic pump; a protective shell is fixedly connected to the outer wall of the oil storage cylinder, and the motor and the hydraulic pump are both installed in the protective shell; four unloading through holes are symmetrically opened on the end face of the piston head, and an unloading valve is installed in each unloading hole.

[0004] It can be seen that the actuator can actively change the hydraulic pressure at both ends of the piston to control the movement of the piston under the stimulation of road surface unevenness, and then actively control the action of the actuator, and finally actively adjust the posture of the vehicle body through the active suspension. However, the structure of the actuator is complex, which not only increases the technical difficulty of the assembly process, but also greatly increases the difficulty of coordinated control between various components during operation, resulting in reduced operating efficiency and stability of the actuator. Summary of the invention

[0005] The present invention provides an integrated vehicle body posture adaptive adjustment active suspension actuator and system to solve the technical problems in the prior art that the actuator has a complex structure, which leads to great difficulty in assembly and great difficulty in coordinated control during operation.

[0006] In order to solve the above problems, the integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention adopts the following technical solutions:

[0007] An integrated vehicle body posture adaptive adjustment active suspension actuator comprises a motor, a displacement pump, a solenoid valve and an integrated valve block, wherein the motor is connected to the displacement pump, the integrated valve block is fixedly mounted at the oil inlet and outlet of the displacement pump, and the solenoid valve is mounted on the integrated valve block;

[0008] The integrated valve block includes a valve body, a mounting position for connecting to the displacement pump is provided on the valve body, a parallel oil inlet and oil outlet are provided in the valve body, the oil inlet includes a first main oil section and a first auxiliary oil section, the oil outlet includes a second main oil section and a second auxiliary oil section, the first main oil section is connected to the first auxiliary oil section through a first mounting hole, the second main oil section is connected to the second auxiliary oil section through a second mounting hole, and a cut-off valve is installed in each of the first mounting hole and the second mounting hole;

[0009] The valve body is provided with a third mounting hole for mounting the overflow valve, and the third mounting hole is connected with the first mounting hole and the second mounting hole;

[0010] The valve body is provided with a first oil inlet and outlet hole and a second oil inlet and outlet hole located on the first main oil section and the second main oil section respectively in the installation position;

[0011] The solenoid valve is installed on the first auxiliary oil section and the second auxiliary oil section on the side of the cut-off valve away from the installation position, the solenoid valves are connected through an auxiliary oil circuit, and a one-way valve is arranged on the valve body below the solenoid valve;

[0012] Sensors are installed on the first auxiliary oil section and the second auxiliary oil section on the side of the solenoid valve away from the cut-off valve;

[0013] An accumulator is provided on a side of the valve body away from the installation position, and the accumulator is communicated with the auxiliary oil circuit.

[0014] The integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention has the following beneficial effects:

[0015] 1. An active suspension actuator including a motor, a displacement pump, a solenoid valve and an integrated valve block is provided, the motor is connected to the displacement pump, the integrated valve block is fixedly installed at the oil inlet and outlet of the displacement pump, and the solenoid valve is installed on the integrated valve block. The structure is simple, external connections and pipelines are reduced, the integration degree of the actuator is improved, and the assembly difficulty of the actuator is reduced;

[0016] 2. By opening a parallel oil inlet and oil outlet passage in the valve body of the integrated valve block, opening a first mounting hole, a first inlet and outlet hole, a fourth mounting hole and a third inlet and outlet hole in the oil inlet passage, and opening a second mounting hole, a second inlet and outlet hole, a fifth mounting hole and a fourth inlet and outlet hole in the oil outlet passage; installing a cut-off valve in the first mounting hole and the second mounting hole, installing a solenoid valve in the fourth mounting hole and the fifth mounting hole, and installing a one-way valve under each solenoid valve, the space of the valve body is utilized to the maximum extent, a high space utilization rate is achieved, and the volume and weight of the actuator are reduced, thereby improving the fuel economy and maneuverability of the vehicle;

[0017] 3. The solenoid valve, cut-off valve, sensor and check valve are connected through the oil circuit in the valve body to form a coordinated system. The connection of the oil circuit enables the actuator to use the state change of the oil in the oil circuit as a control signal, reducing the complexity of signal transmission between components;

[0018] 4. The output flow of the positive displacement pump is controlled by the motor, thereby adjusting the flow of oil through the integrated valve block. The damping force of the oil is controlled by the cooperation between the solenoid valve and the oil circuit in the valve body, so that it can adapt to various road conditions.

[0019] Through the above arrangement, the present invention effectively solves the technical problems in the prior art that the actuator has a complex structure, which leads to great difficulty in assembly and great difficulty in coordinated control during operation.

[0020] Further, a fourth mounting hole and a sixth mounting hole are sequentially opened on the first auxiliary oil section on a side of the third mounting hole away from the first mounting hole, and a third oil inlet and outlet hole is provided on the valve body, which is offset up and down from the sixth mounting hole, the fourth mounting hole is used to install the solenoid valve, and the sixth mounting hole is used to install the sensor; a fifth mounting hole and a seventh mounting hole are sequentially opened on the second auxiliary oil section on a side of the third mounting hole away from the first mounting hole, and a fourth oil inlet and outlet hole is offset up and down from the seventh mounting hole on the valve body, the fifth mounting hole is used to install the solenoid valve, and the seventh mounting hole is used to install the sensor.

[0021] Furthermore, the fourth mounting hole is connected to the fifth mounting hole through the auxiliary oil passage.

[0022] Further, the third mounting hole is located at the center of an area surrounded by the first mounting hole, the second mounting hole, the fourth mounting hole and the fifth mounting hole.

[0023] Furthermore, a third oil circuit for connecting the first mounting hole and the third mounting hole, and a fourth oil circuit for connecting the second mounting hole and the third mounting hole are opened in the valve body.

[0024] Further, the third oil circuit extends obliquely upward from the bottom of the first mounting hole to the third mounting hole, and the fourth oil circuit extends horizontally from the bottom of the second mounting hole to the bottom center of the third mounting hole.

[0025] Further, the ends of the first main oil section, the first auxiliary oil section, the second main oil section, the second auxiliary oil section, the auxiliary oil circuit and the fourth oil circuit are all equipped with plugs.

[0026] Furthermore, an accumulator interface for installing the accumulator is provided on the valve body, and the accumulator interface is communicated with the auxiliary oil circuit.

[0027] Furthermore, the volumetric pump is a hydraulic bidirectional gear pump.

[0028] In order to solve the above problems, the integrated vehicle body posture adaptive adjustment active suspension system provided by the present invention adopts the following technical solutions:

[0029] An integrated vehicle body posture adaptive active suspension system comprises a controller, a road surface roughness detector, a shock absorber and an actuator, wherein the actuator adopts the above-mentioned integrated vehicle body posture adaptive active suspension actuator, and the integrated vehicle body posture adaptive active suspension actuator is connected to the upper and lower chambers of the shock absorber through an oil pipe;

[0030] The integrated vehicle body posture adaptive adjustment active suspension actuator comprises a motor, a displacement pump, a solenoid valve and an integrated valve block, wherein the motor is connected to the displacement pump, the integrated valve block is fixedly mounted at the oil inlet and outlet of the displacement pump, and the solenoid valve is mounted on the integrated valve block;

[0031] The integrated valve block includes a valve body, a mounting position for connecting to the displacement pump is provided on the valve body, a parallel oil inlet and oil outlet are provided in the valve body, the oil inlet includes a first main oil section and a first auxiliary oil section, the oil outlet includes a second main oil section and a second auxiliary oil section, the first main oil section is connected to the first auxiliary oil section through a first mounting hole, the second main oil section is connected to the second auxiliary oil section through a second mounting hole, and a cut-off valve is installed in each of the first mounting hole and the second mounting hole;

[0032] The valve body is provided with a third mounting hole for mounting the overflow valve, and the third mounting hole is connected with the first mounting hole and the second mounting hole;

[0033] The valve body is provided with a first oil inlet and outlet hole and a second oil inlet and outlet hole located on the first main oil section and the second main oil section respectively in the installation position;

[0034] The solenoid valve is installed on the first auxiliary oil section and the second auxiliary oil section on the side of the cut-off valve away from the installation position, the solenoid valves are connected through an auxiliary oil circuit, and a one-way valve is arranged on the valve body below the solenoid valve;

[0035] Sensors are installed on the first auxiliary oil section and the second auxiliary oil section on the side of the solenoid valve away from the cut-off valve;

[0036] An accumulator is provided on a side of the valve body away from the installation position, and the accumulator is communicated with the auxiliary oil circuit.

[0037] The integrated vehicle body posture adaptive adjustment active suspension system provided by the present invention has the following beneficial effects:

[0038] 1. An active suspension actuator including a motor, a displacement pump, a solenoid valve and an integrated valve block is provided, the motor is connected to the displacement pump, the integrated valve block is fixedly installed at the oil inlet and outlet of the displacement pump, and the solenoid valve is installed on the integrated valve block. The structure is simple, external connections and pipelines are reduced, the integration degree of the actuator is improved, and the assembly difficulty of the actuator is reduced;

[0039] 2. By opening a parallel oil inlet and oil outlet passage in the valve body of the integrated valve block, opening a first mounting hole, a first inlet and outlet hole, a fourth mounting hole and a third inlet and outlet hole in the oil inlet passage, and opening a second mounting hole, a second inlet and outlet hole, a fifth mounting hole and a fourth inlet and outlet hole in the oil outlet passage; installing a cut-off valve in the first mounting hole and the second mounting hole, installing a solenoid valve in the fourth mounting hole and the fifth mounting hole, and installing a one-way valve under each solenoid valve, the space of the valve body is utilized to the maximum extent, a high space utilization rate is achieved, and the volume and weight of the actuator are reduced, thereby improving the fuel economy and maneuverability of the vehicle;

[0040] 3. The solenoid valve, cut-off valve, sensor and check valve are connected through the oil circuit in the valve body to form a coordinated system. The connection of the oil circuit enables the actuator to use the state change of the oil in the oil circuit as a control signal, reducing the complexity of signal transmission between components;

[0041] 4. By controlling the speed of the motor through the controller, and using the motor to control the output flow of the positive displacement pump, the flow of the oil through the integrated valve block is adjusted, and the oil damping force is controlled by the mutual cooperation of the solenoid valve and the oil circuit in the valve body, so that it can adapt to various road conditions.

[0042] Through the above arrangement, the present invention effectively solves the technical problems in the prior art that the actuator has a complex structure, which leads to great difficulty in assembly and great difficulty in coordinated control during operation.

[0043] Further, a fourth mounting hole and a sixth mounting hole are sequentially opened on the first auxiliary oil section on a side of the third mounting hole away from the first mounting hole, and a third oil inlet and outlet hole is provided on the valve body, which is offset up and down from the sixth mounting hole, the fourth mounting hole is used to install the solenoid valve, and the sixth mounting hole is used to install the sensor; a fifth mounting hole and a seventh mounting hole are sequentially opened on the second auxiliary oil section on a side of the third mounting hole away from the first mounting hole, and a fourth oil inlet and outlet hole is offset up and down from the seventh mounting hole on the valve body, the fifth mounting hole is used to install the solenoid valve, and the seventh mounting hole is used to install the sensor.

[0044] Furthermore, the fourth mounting hole is connected to the fifth mounting hole through the auxiliary oil passage.

[0045] Further, the third mounting hole is located at the center of an area surrounded by the first mounting hole, the second mounting hole, the fourth mounting hole and the fifth mounting hole.

[0046] Furthermore, a third oil circuit for connecting the first mounting hole and the third mounting hole, and a fourth oil circuit for connecting the second mounting hole and the third mounting hole are opened in the valve body.

[0047] Further, the third oil circuit extends obliquely upward from the bottom of the first mounting hole to the third mounting hole, and the fourth oil circuit extends horizontally from the bottom of the second mounting hole to the bottom center of the third mounting hole.

[0048] Further, the ends of the first main oil section, the first auxiliary oil section, the second main oil section, the second auxiliary oil section, the auxiliary oil circuit and the fourth oil circuit are all equipped with plugs.

[0049] Furthermore, an accumulator interface for installing the accumulator is provided on the valve body, and the accumulator interface is communicated with the auxiliary oil circuit.

[0050] Furthermore, the volumetric pump is a hydraulic bidirectional gear pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0052] Figure 1 This is a schematic structural diagram of the integrated vehicle body posture adaptive adjustment active suspension system provided by the present invention;

[0053] Figure 2 A schematic structural diagram of an angle of an integrated valve block in an integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention;

[0054] Figure 3 It is a structural schematic diagram of another angle of the integrated valve block in the integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention;

[0055] Figure 4 A partial cross-sectional view of an integrated valve block in an integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention;

[0056] Figure 5 This is a schematic structural diagram of a valve body in an integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention;

[0057] Figure 6 The figure is a side view of a valve body in the integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention.

[0058] Description of reference numerals:

[0059] 1. Motor; 2. Hydraulic bidirectional gear pump; 3. First solenoid valve; 4. Second solenoid valve; 5. Integrated valve block; 6. Valve body; 7. Mounting position; 8. First main oil section; 9. First auxiliary oil section; 10. Second main oil section; 11. Second auxiliary oil section; 12. First mounting hole; 13. Second mounting hole; 14. First shut-off valve; 15. Second shut-off valve; 16. Third mounting hole; 17. First oil inlet and outlet hole; 18. Second oil inlet and outlet hole; 19. Auxiliary oil circuit; 20. First transmission sensor; 21, second sensor; 22, first one-way valve; 23, second one-way valve; 24, accumulator; 25, fourth mounting hole; 26, third oil inlet and outlet holes; 27, fifth mounting hole; 28, fourth oil inlet and outlet holes; 29, third oil circuit; 30, fourth oil circuit; 31, plug; 32, accumulator interface; 33, oil pipe; 34, shock absorber; 35, first controller; 36, second controller; 37, overflow valve; 38, sixth mounting hole; 39, seventh mounting hole. DETAILED DESCRIPTION

[0060] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0061] The embodiment of the integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention is as follows:

[0062] like Figures 2 to 4 As shown, the integrated vehicle posture adaptive active suspension actuator includes a motor 1, a displacement pump, a solenoid valve, an integrated valve block 5, a cut-off valve, a relief valve 37, a sensor, and an accumulator 24. The motor 1 is connected to the displacement pump, the integrated valve block 5 is fixedly installed at the oil inlet and outlet of the displacement pump, and the solenoid valve, the cut-off valve, the relief valve 37, the sensor, the accumulator 24, and the plug 31 are all installed on the integrated valve block 5.

[0063] The specific structure of the integrated valve block 5 is described below. Figures 4 to 6 As shown, the integrated valve block 5 includes a valve body 6, on which a mounting position 7 for connecting to a displacement pump is provided, and two parallel oil inlet and oil outlet passages extending from left to right are provided in the valve body 6, the oil inlet passage includes a first main oil section 8 and a first auxiliary oil section 9, the oil outlet passage includes a second main oil section 10 and a second auxiliary oil section 11, the first main oil section 8 is connected to the first auxiliary oil section 9 via a first mounting hole 12, and the second main oil section 10 is connected to the second auxiliary oil section 11 via a second mounting hole 13.

[0064] The valve body 6 is provided with a third mounting hole 16, which is connected to the first mounting hole 12 and the second mounting hole 13; the first mounting hole 12 and the third mounting hole 16 are connected through a third oil passage 29, and the second mounting hole 13 and the third mounting hole 16 are connected through a fourth oil passage 30. The third oil passage 29 extends obliquely upward from the bottom of the first mounting hole 12 to the third mounting hole 16, and the fourth oil passage 30 extends horizontally from the bottom of the second mounting hole 13 to the bottom center of the third mounting hole 16.

[0065] The valve body 6 is provided with a first oil inlet and outlet hole 17 and a second oil inlet and outlet hole 18 located on the first main oil section 8 and the second main oil section 10, respectively, in the mounting position 7; a fourth mounting hole 25 and a sixth mounting hole 38 are sequentially provided on the right side of the first mounting hole 12, and a fifth mounting hole 27 and a seventh mounting hole 39 are sequentially provided on the right side of the second mounting hole 13; the valve body 6 is also provided with a third oil inlet and outlet hole 26 which is vertically offset from the sixth mounting hole 38, and a fourth oil inlet and outlet hole 28 which is vertically offset from the seventh mounting hole 39, and the third oil inlet and outlet hole 26 and the fourth oil inlet and outlet hole 28 are used to be connected to the oil pipe 33. Among them, the third mounting hole 16 is located at the center of the area surrounded by the first mounting hole 12, the second mounting hole 13, the fourth mounting hole 25 and the fifth mounting hole 27. The fourth mounting hole 25 is connected to the fifth mounting hole 27 through the auxiliary oil circuit 19 to realize the connection between the solenoid valves on the oil inlet circuit and the oil outlet circuit.

[0066] Next, the installation of the solenoid valve, the shut-off valve, the overflow valve 37, the sensor and the accumulator 24 on the integrated valve block 5 is described. Figure 2 and Figure 3 As shown, there are two solenoid valves, namely the first solenoid valve 3 and the second solenoid valve 4, which are respectively mounted in the fourth mounting hole 25 and the fifth mounting hole 27; there are two cut-off valves, namely the first cut-off valve 14 and the second cut-off valve 15, which are respectively mounted in the first mounting hole 12 and the second mounting hole 13; there is one overflow valve 37, which is mounted in the third mounting hole 16; there are two sensors, namely the first sensor 20 and the second sensor 21, which are respectively mounted in the sixth mounting hole 38 and the seventh mounting hole 39; a first check valve 22 and a second check valve 23 are respectively mounted below the first solenoid valve 3 and the second solenoid valve 4 in the valve body 6; the accumulator 24 is mounted on the side of the valve body 6 away from the mounting position 7, and an accumulator interface 32 for mounting the accumulator 24 is provided on the valve body 6, and the accumulator interface 32 is connected to the auxiliary oil circuit 19. In other embodiments, each oil inlet and each oil outlet are installed with a solenoid valve, a shut-off valve, a sensor and a one-way valve, and the number of the solenoid valves, the shut-off valves, the sensors and the one-way valves is determined according to specific usage requirements.

[0067] In addition, the ends of the first main oil section 8 , the first auxiliary oil section 9 , the second main oil section 10 , the second auxiliary oil section 11 , the auxiliary oil passage 19 and the fourth oil passage 30 are all equipped with plugs 31 .

[0068] It should be noted that, in this embodiment, the displacement pump is a hydraulic bidirectional gear pump 2, and the output shaft of the motor 1 is connected to the driving gear key of the hydraulic bidirectional gear pump 2; in other embodiments, the displacement pump is a cam pump or a screw pump or a vane pump.

[0069] It should also be noted that, in other embodiments, the number of oil inlet circuits is at least one, the number of oil outlet circuits is also at least one, each oil inlet circuit has the same structural composition as the above-mentioned oil inlet circuit, and each oil outlet circuit has the same structural composition as the above-mentioned oil outlet circuit.

[0070] The working principle of the integrated vehicle body posture adaptive adjustment active suspension actuator provided by the present invention is: under the condition that the cut-off valve is normally open, the controller controls the speed of the motor 1 to apply the main force to the gear pump, and the gear pump pumps oil through the first oil inlet and outlet hole 17 or the second oil inlet and outlet hole 18, sequentially passes through the first main oil section 8 or the second main oil section 10, the first cut-off valve 14 or the second cut-off valve 15 to the first auxiliary oil section 9 or the second auxiliary oil section 11, the first solenoid valve 3 or the second solenoid valve 4, and then passes through the third oil inlet and outlet hole 26 or the fourth oil inlet and outlet hole 28. , the oil pipe 33 enters the shock absorber 34; at this time, part of the oil in the accumulator 24 passes through the accumulator interface 32 and the auxiliary oil circuit 19 through the first one-way valve 22 or the second one-way valve 23, the first solenoid valve 3 or the second solenoid valve 4, and the first solenoid valve 3 or the second solenoid valve 4 controls the opening size to adjust the flow of oil entering the first auxiliary oil section 9 or the second auxiliary oil section 11, so that a pressure difference is generated at both ends of the interface of the first solenoid valve 3 or the second solenoid valve 4, that is, the upper and lower chambers of the shock absorber 34, so as to achieve the function of adjusting the damping force of the system oil.

[0071] The embodiment of the integrated vehicle body posture adaptive adjustment active suspension system provided by the present invention is as follows:

[0072] like Figure 1 As shown, the integrated vehicle posture adaptive active suspension system includes a controller, a road surface roughness detector, a shock absorber 34 and an actuator. The structure of the actuator is the same as that of the integrated vehicle posture adaptive active suspension actuator mentioned above, which will not be repeated here.

[0073] In this embodiment, there are two controllers, namely a first controller 35 and a second controller 36 .

[0074] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0075] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. An integrated vehicle body posture adaptive active suspension actuator, characterized in that: It includes a motor, a displacement pump, a solenoid valve and an integrated valve block, the motor is connected to the displacement pump, the integrated valve block is fixedly installed at the oil inlet and outlet of the displacement pump, and the solenoid valve is installed on the integrated valve block; The integrated valve block includes a valve body, a mounting position for connecting to the displacement pump is provided on the valve body, a parallel oil inlet and oil outlet are provided in the valve body, the oil inlet includes a first main oil section and a first auxiliary oil section, the oil outlet includes a second main oil section and a second auxiliary oil section, the first main oil section is connected to the first auxiliary oil section through a first mounting hole, the second main oil section is connected to the second auxiliary oil section through a second mounting hole, and a cut-off valve is installed in each of the first mounting hole and the second mounting hole; The valve body is provided with a third mounting hole for mounting the overflow valve, and the third mounting hole is connected with the first mounting hole and the second mounting hole; The valve body is provided with a first oil inlet and outlet hole and a second oil inlet and outlet hole located on the first main oil section and the second main oil section respectively in the installation position; The solenoid valve is installed on the first auxiliary oil section and the second auxiliary oil section on the side of the cut-off valve away from the installation position, the solenoid valves are connected through an auxiliary oil circuit, and a one-way valve is arranged on the valve body below the solenoid valve; Sensors are installed on the first auxiliary oil section and the second auxiliary oil section on the side of the solenoid valve away from the cut-off valve; An accumulator is provided on a side of the valve body away from the installation position, and the accumulator is communicated with the auxiliary oil circuit.

2. The integrated vehicle body posture adaptive active suspension actuator according to claim 1 is characterized in that: The first auxiliary oil section is provided with a fourth mounting hole and a sixth mounting hole in sequence on a side of the third mounting hole away from the first mounting hole, the valve body is provided with a third oil inlet and outlet hole which is offset up and down from the sixth mounting hole, the fourth mounting hole is used for mounting the solenoid valve, and the sixth mounting hole is used for mounting the sensor; the second auxiliary oil section is provided with a fifth mounting hole and a seventh mounting hole in sequence on a side of the third mounting hole away from the first mounting hole, the valve body is provided with a fourth oil inlet and outlet hole which is offset up and down from the seventh mounting hole, the fifth mounting hole is used for mounting the solenoid valve, and the seventh mounting hole is used for mounting the sensor.

3. The integrated vehicle body posture adaptive active suspension actuator according to claim 2 is characterized in that: The fourth mounting hole is communicated with the fifth mounting hole through the auxiliary oil passage.

4. The integrated vehicle body posture adaptive active suspension actuator according to claim 2 or 3, characterized in that: The third mounting hole is located at the center of an area surrounded by the first mounting hole, the second mounting hole, the fourth mounting hole, and the fifth mounting hole.

5. The integrated vehicle body posture adaptive active suspension actuator according to any one of claims 1 to 3, characterized in that: The valve body is provided with a third oil passage for connecting the first mounting hole and the third mounting hole, and a fourth oil passage for connecting the second mounting hole and the third mounting hole.

6. The integrated vehicle body posture adaptive active suspension actuator according to claim 5 is characterized in that: The third oil circuit extends obliquely upward from the bottom of the first mounting hole to the third mounting hole, and the fourth oil circuit extends horizontally from the bottom of the second mounting hole to the bottom center of the third mounting hole.

7. The integrated vehicle body posture adaptive active suspension actuator according to claim 5 is characterized in that: Ends of the first main oil section, the first auxiliary oil section, the second main oil section, the second auxiliary oil section, the auxiliary oil circuit, and the fourth oil circuit are all equipped with plugs.

8. The integrated vehicle body posture adaptive active suspension actuator according to claim 1 or 2, characterized in that: An accumulator interface for installing the accumulator is provided on the valve body, and the accumulator interface is communicated with the auxiliary oil circuit.

9. The integrated vehicle body posture adaptive active suspension actuator according to claim 1 or 2, characterized in that: The volumetric pump is a hydraulic bidirectional gear pump.

10. An integrated vehicle body posture adaptive active suspension system, comprising a controller, a road roughness detector, a shock absorber and an actuator, characterized in that: The actuator adopts the integrated vehicle body posture adaptive adjustment active suspension actuator as described in any one of claims 1 to 9, and the integrated vehicle body posture adaptive adjustment active suspension actuator is connected to the upper and lower chambers of the shock absorber through an oil pipe.

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