Hydraulic suspension system and method of controlling the same, vehicle

Abstract

The application relates to the technical field of vehicle accessories, in particular to a hydraulic suspension system, a control method thereof and a vehicle. The hydraulic suspension system comprises a liquid storage part, a water pump and a heat dissipation part which are connected through a circulating pipeline to form a closed loop. The liquid storage part has a containing cavity for containing liquid. The hydraulic suspension system further comprises a main spring rubber which is connected with a power assembly and at least partially adheres to the outer wall of the liquid storage part. A temperature sensor is arranged on the main spring rubber and used for detecting the temperature of the main spring rubber. When the temperature sensor detects that the temperature of the main spring rubber rises to a first preset temperature, a first electric signal is sent to the water pump. The water pump drives the liquid in the liquid storage part to circulate in the circulating pipeline and the circulating liquid is heat dissipated through the heat dissipation part. The hydraulic suspension system, the control method thereof and the vehicle can solve the problem of fatigue life reduction of the main spring rubber in the hydraulic suspension system and improve the reliability of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle accessories, in particular to a hydraulic suspension system, a control method thereof and a vehicle. BACKGROUND

[0002] The hydraulic suspension system is used for connecting the power assembly and the automobile parts of the vehicle body, and plays a role of bearing, vibration isolation and limiting. During the driving of the vehicle, a large amount of heat is generated by the engine, so that the temperature of the main spring rubber in the hydraulic suspension system is relatively high. Since the main spring rubber has poor high-temperature resistance, the fatigue life thereof will be greatly reduced in a high-temperature environment, thereby increasing the safety risk of the vehicle. SUMMARY

[0003] The present application aims to provide a hydraulic suspension system, a control method thereof and a vehicle, which can solve the problem of fatigue life reduction of the main spring rubber of the hydraulic suspension system and improve the reliability of the vehicle.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] In a first aspect, the present application provides a hydraulic suspension system for connecting a power assembly, the hydraulic suspension system comprising a liquid storage part, a water pump and a heat dissipation member connected to form a closed loop through a circulating pipeline, the liquid storage part having a containing cavity for containing liquid, and the hydraulic suspension system further comprising:

[0006] a main spring rubber connected with the power assembly and at least partially attached to the outer wall of the liquid storage part;

[0007] a temperature sensor arranged on the main spring rubber and configured to detect the temperature of the main spring rubber, and configured to send a first electric signal to the water pump when the temperature of the main spring rubber rises to a first preset temperature, and the water pump is configured to drive the liquid in the liquid storage part to circulate in the circulating pipeline and dissipate heat through the heat dissipation member.

[0008] By means of the above-mentioned technical means, active cooling of the main spring rubber is realized. No matter in any working condition, as long as the temperature of the main spring rubber is detected to rise to greater than or equal to the first preset temperature, the circulation is automatically started to form cooling, so as to avoid the problem of fatigue life reduction of the main spring rubber and improve the stability of the operation of the hydraulic suspension system.

[0009] In an optional embodiment, when the temperature sensor detects that the temperature of the main spring rubber decreases from the first preset temperature to a second preset temperature, a second electric signal is sent to the water pump, and the water pump stops driving the liquid in the liquid storage part to circulate in the circulating pipeline.

[0010] Through the technical means, the circulating pipeline for cooling can be actively disconnected when the temperature of the main spring rubber is detected to drop to the temperature. The operation of circulating heat dissipation is only performed at the set temperature requiring heat dissipation, which is beneficial to reduce waste of energy and improve service life.

[0011] In an optional embodiment, the heat dissipation member is a plate heat exchanger, and the water pump is connected in series between the plate heat exchanger and the liquid storage part through the circulating pipeline.

[0012] Through the technical means, the cooling effect of the high-temperature liquid from the liquid storage part to the heat dissipation member is better, and the efficiency of the circulation is improved.

[0013] In an optional embodiment, the plate heat exchanger has a water inlet end and a water outlet end, the liquid storage chamber has a water inlet and a water outlet, and the circulating pipeline includes a first pipeline and a second pipeline. The first pipeline is connected between the water outlet end and the water inlet, and the second pipeline is connected between the water outlet and the water inlet end through the water pump.

[0014] Through the technical means, the circulation of the liquid in the circulating pipeline can be conveniently and quickly realized, so that the heat dissipation of the liquid is realized.

[0015] In an optional embodiment, the heat dissipation fan is arranged on one side of the plate heat exchanger to dissipate heat from the plate heat exchanger.

[0016] Through the technical means, the cooling of the circulating liquid can be conveniently and quickly realized, so that the main spring rubber is cooled efficiently and quickly, and the fatigue life of the main spring rubber is prevented from being reduced.

[0017] In an optional embodiment, the heat dissipation member is arranged on one side away from the power assembly.

[0018] Through the technical means, the heat dissipation member can be air-cooled by the external environment, the efficiency of heat diffusion is improved, and the circulating liquid is quickly cooled.

[0019] In an optional embodiment, the heat dissipation member is arranged on one side away from the power assembly.

[0020] Through the technical means, the heat dissipation member is arranged on one side away from the power assembly.

[0021] In an optional embodiment, the first preset temperature is in the range of 65-75°C.

[0022] Through the technical means, the temperature of the main spring rubber is prevented from exceeding the temperature to reduce the fatigue life.

[0023] In a second aspect, the embodiments of the present application further provide a control method of a hydraulic suspension system. The hydraulic suspension system comprises a liquid storage part, a water pump and a heat dissipation member connected to form a closed loop through a circulation pipeline. The liquid storage part has a containing cavity for containing liquid. The hydraulic suspension system further comprises a main spring rubber and a temperature sensor. The main spring rubber is at least partially attached to the outer wall of the liquid storage part. The temperature sensor is arranged on the main spring rubber. The control method comprises:

[0024] When the temperature sensor detects that the temperature of the main spring rubber rises to a first preset temperature, the water pump is sent a first electric signal. The water pump drives the liquid in the liquid storage part to circulate in the circulation pipeline and the circulating liquid is cooled by the heat dissipation member.

[0025] In a third aspect, the embodiments of the present application further provide a vehicle comprising the hydraulic suspension system as described above.

[0026] The present application has the following beneficial effects: The water pump, the liquid storage part and the heat dissipation member form a closed loop, so that the temperature of the main spring rubber can be monitored in real time by the temperature sensor. When the temperature rises to a set upper limit, the main spring rubber can be actively cooled. No matter in any working condition, as long as the temperature of the main spring rubber is detected to rise to greater than or equal to the first preset temperature, the circulation can be automatically started to form cooling, thereby avoiding the problem of fatigue life reduction of the main spring rubber and improving the stability of the hydraulic suspension system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 shows a structural schematic diagram of a hydraulic suspension system provided by the embodiments of the present application;

[0028] Figure 2 Fig. 2 shows a partial position sectional view of Fig. 1. Figure 1

[0029] Reference signs:

[0030] 1 - hydraulic suspension system; 11 - engine compartment; 12 - oil storage chamber; 13 - liquid storage part; 13a - containing cavity; 131 - water inlet; 132 - water outlet; 14 - main spring rubber; 15 - water pump; 16 - temperature sensor; 17 - heat dissipation member; 171 - heat dissipation pipeline; 172 - heat dissipation fin; 17a - water outlet end; 17b - water inlet end; 18 - circulation pipeline; 181 - first pipeline; 182 - second pipeline. DETAILED DESCRIPTION

[0031] ​The present application will be described in more detail below with reference to the drawings and preferred embodiments. Other advantages and effects of the present application will be readily understood by those skilled in the art from the disclosure contained herein. The present application can be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details of the application based on different views and applications without departing from the spirit of the application. It should be understood that the preferred embodiments are only for illustrating the application, but not for limiting the scope of protection of the application.

[0032] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component may be a random change, and the component layout may be more complex.

[0033] As shown in Figure 1 and Figure 2 The hydraulic suspension system provided by the embodiments of the present application is used to connect a power assembly, which includes an engine. In a vehicle, the core components mainly include a power assembly, and the engine in the power assembly is generally connected to the hydraulic suspension system 1, so as to connect the engine and the vehicle body. During the movement of the vehicle, the hydraulic suspension system 1 can drive the engine to fluctuate with different working conditions, so as to avoid damage to the engine. It can be understood that the hydraulic suspension system 1 and the power assembly also include other cooperating structures, and the specific connection mode and the implementation mode of the specific cooperation of the corresponding structures will not be described herein.

[0034] Optionally, the hydraulic suspension system 1 further includes an oil storage chamber 12 for storing hydraulic oil, and the oil storage chamber 12 is divided into upper and lower cavities by a partition. The working principle of the hydraulic suspension is to attenuate the vibration of the engine through the flow of the suspension hydraulic oil, which will not be described in detail herein.

[0035] The hydraulic suspension system 1 further includes a liquid storage part 13, a water pump 15 and a heat dissipation part 17 connected to form a closed loop through a circulating pipeline 18. The liquid storage part 13 has a containing cavity 13a for containing liquid. The hydraulic suspension system 1 further includes a main spring rubber 14 arranged on the outer wall of the liquid storage part 13. The main spring rubber 14 is connected to the power assembly, and at least partially adheres to the outer wall of the liquid storage part 13. A temperature sensor 16 is arranged on the main spring rubber 14 for detecting the temperature of the main spring rubber 14. When the temperature sensor 16 detects that the temperature of the main spring rubber 14 rises to a first preset temperature, a first electric signal is sent to the water pump 15. The water pump 15 drives the liquid in the liquid storage part 13 to circulate in the circulating pipeline 18, and the circulating liquid is cooled by the heat dissipation part 17.

[0036] Optionally, the liquid stored in the liquid storage portion 13 is ethylene glycol.

[0037] In the hydraulic suspension system 1, the outer wall of the liquid storage portion 13 is covered with the main spring rubber 14, and the main spring rubber 14 is used to be directly connected with the engine. When the engine is working, the heat generated by the engine can be conducted to the main spring rubber 14, causing the temperature of the main spring rubber 14 to rise rapidly, and the main spring rubber 14 conducts the temperature to the liquid storage portion 13, causing the temperature of the liquid in the liquid storage portion 13 to rise. When the temperature sensor 16 detects that the temperature of the main spring rubber 14 rises to a first preset temperature, a first electric signal is formed and sent to the control module. After receiving the first electric signal sent by the temperature sensor 16, the control module can actively start the water pump 15 and the heat dissipation member 17 to work to utilize the circulation of the liquid in the liquid storage portion 13. The liquid in the liquid storage portion 13 is discharged and cooled by the heat dissipation member 17 and then returned to the liquid storage portion 13, realizing the overall cooling of the liquid storage portion 13, and further realizing the cooling of the contacted main spring rubber 14. Thus, through the cooperation of the structure, the active cooling of the main spring rubber 14 is realized. No matter in any working condition, as long as the temperature of the main spring rubber 14 is detected to rise to greater than or equal to the first preset temperature, the circulation for cooling can be automatically started, thereby avoiding the problem of fatigue life reduction of the main spring rubber 14 and improving the stability of the hydraulic suspension system 1.

[0038] In an optional embodiment, the temperature sensor 16 has a second preset temperature. When the temperature sensor 16 detects that the temperature of the main spring rubber 14 drops from the first preset temperature to the second preset temperature, a second electric signal is sent to the water pump 15, and the water pump 15 stops driving the liquid in the liquid storage portion 13 to circulate in the circulation pipeline 18. Through the setting of the second preset temperature, when the temperature of the main spring rubber 14 is detected to drop to the temperature, the circulation pipeline 18 for cooling can be actively disconnected. Only when the set temperature for heat dissipation needs to be cooled, the operation of circulating cooling is performed, which is beneficial to reduce the waste of energy and improve the service life.

[0039] Optionally, the control module is further included, and the control module is electrically connected with the temperature sensor 16, the water pump 15 and the heat dissipation member 17 respectively. The temperature sensor 16 sends the corresponding electric signal detected to the control module, and the control module can control the water pump and the heat dissipation member 17 to perform corresponding actions according to the received electric signal, so as to realize the circulation or stop of the liquid.

[0040] It can be understood that the first preset temperature is greater than the second preset temperature. The first preset temperature is in the range of 65°C-75℃, so as to avoid the fatigue life reduction of the main spring rubber 14 caused by the temperature of the main spring rubber 14 exceeding the temperature. Preferably, the first preset temperature is 70℃. The second preset temperature can be set to 40℃-60℃, and can be limited according to actual needs.

[0041] Optionally, the temperature sensor 16 can be arranged at any position that facilitates detection of the temperature of the main spring rubber 14, which is not limited herein.

[0042] In an optional embodiment, the heat sink 17 is a plate heat exchanger, and the water pump 15 is connected in series between the plate heat exchanger and the liquid storage portion 13 through the circulating pipeline 18. The plate heat exchanger includes a plurality of arrayed heat dissipation fins 172, and a heat dissipation pipeline 171 is arranged along the heat dissipation fins 172. The plate heat exchanger has a water inlet end 17b and a water outlet end 17a, i.e., two ends of the heat dissipation pipeline 171, for connecting the plate heat exchanger to the circulating pipeline 18. Through such a matching structure, the liquid at a high temperature is better guided from the liquid storage portion 13 to the heat sink 17 for cooling, improving the efficiency of circulation, and quickly and efficiently cooling the circulating liquid to return to the liquid storage portion 13, thereby achieving heat dissipation of the main spring rubber 14 in contact with the outer wall of the liquid storage portion 13.

[0043] Specifically, the liquid storage chamber has a water inlet 131 and a water outlet 132, and the circulating pipeline 18 includes a first pipeline 181 and a second pipeline 182. The first pipeline 181 is connected between the water outlet end 17a and the water inlet 131, and the second pipeline 182 is connected between the water outlet 132 and the water inlet end 17b through the water pump 15. Through such a connection mode, a closed loop connection of the circulating pipeline 18 is achieved, which ensures that the liquid can be conveniently and quickly circulated in the circulating pipeline 18, thereby achieving heat dissipation of the liquid.

[0044] Optionally, a one-way valve can also be included, which is connected to the closed circulating pipeline 18 for limiting the circulating liquid to only circulate in the direction from the water pump 15 to the heat sink 17, avoiding reverse movement of the liquid to affect the use performance.

[0045] Optionally, a heat dissipation fan is also included, which is arranged on one side of the plate heat exchanger to air-cool the plate heat exchanger. The heat dissipation fan is electrically connected to the control module, and when the control module controls the circulating pipeline 18 to circulate and dissipate heat, the heat dissipation fan is also controlled to be turned on, so as to air-cool the plate heat exchanger through the heat dissipation fan, improve the heat dissipation efficiency, and facilitate quick cooling of the circulating liquid, thereby efficiently and quickly cooling the main spring rubber 14 and avoiding fatigue life reduction of the main spring rubber 14.

[0046] In an optional embodiment, a cabin 11 is also included, and the main spring rubber 14, the liquid storage portion 13, and at least part of the power assembly are located in the cabin 11, and the heat sink 17 is located outside the cabin 11. Arranging the heat sink 17 outside the cabin 11 facilitates air-cooling of the heat sink 17 by the external environment, improves the efficiency of heat diffusion, and thereby achieves quick cooling of the circulating liquid.

[0047] Optionally, the heat dissipation member 17 is arranged on the side away from the power assembly. Preferably, the heat dissipation member 17 is arranged on the side away from the engine, so as to avoid the heat dissipated by the heat dissipation member 17 and the heat generated by the engine from gathering on the side, which is not easy to diffuse, and thus the heat dissipation member 17 cannot achieve the effect of cooling the circulating liquid.

[0048] In a second aspect, the embodiments of the present application provide a control method of the hydraulic suspension system 1, which comprises the following steps:

[0049] The temperature sensor 16 detects that the temperature of the main spring rubber 14 rises to the first preset temperature, sends a first electric signal to the water pump 15, and the water pump 15 drives the liquid in the liquid storage part 13 to circulate in the circulating pipeline 18 and dissipate heat through the heat dissipation member 17.

[0050] Through the closed loop and the temperature sensor 16, active cooling of the main spring rubber 14 is achieved. No matter in any working condition, as long as the temperature of the main spring rubber 14 is detected to rise to greater than or equal to the first preset temperature, the circulation cooling is automatically started, so as to avoid the problem of fatigue life reduction of the main spring rubber 14 and improve the stability of the hydraulic suspension system 1.

[0051] Optionally, the control method further comprises the following steps: in the state that the control module controls the liquid to circulate and dissipate heat in the circulating pipeline 18, if the temperature sensor 16 detects that the temperature of the main spring rubber 14 drops from the first preset temperature to the second preset temperature, a second electric signal is sent to the water pump 15, and the water pump 15 stops driving the liquid in the liquid storage part 13 to circulate in the circulating pipeline 18.

[0052] In the above steps, the circulating pipeline 18 for cooling can be actively disconnected when the temperature of the main spring rubber 14 is detected to drop to the second preset temperature. The operation of circulating heat dissipation is only performed at the set temperature requiring heat dissipation, which is beneficial to reduce the waste of energy and improve the service life.

[0053] Optionally, when the hydraulic suspension system 1 is also provided with a fan, the fan is electrically connected with the control module. When the control module is controlled to perform the corresponding starting or stopping operation by the temperature detected by the temperature sensor 16, the fan is also controlled to start or stop at the same time, so as to perform air-cooled heat dissipation on the liquid circulating to the plate heat exchanger while performing circulating water-cooled heat dissipation, so as to improve the heat dissipation performance and the heat dissipation efficiency.

[0054] In a third aspect, the embodiments of the present application provide a vehicle, which comprises the hydraulic suspension system 1 as described in the above embodiments, and details are not repeated here.

[0055] It can be understood that the vehicle in the embodiments of the present application can be all vehicles with moving ability, including vehicles with automatic driving or intelligent driving, such as passenger vehicles (sedans, buses, coaches, minibuses, etc.), cargo vehicles (ordinary trucks, van trucks, drop trailers, closed trucks, tank trucks, flatbed trucks, container trucks, self-unloading trucks, special structure trucks), special vehicles (logistics distribution vehicles, patrol vehicles, cranes, hoists, excavators, bulldozers, shovels, road rollers, loaders, off-road engineering vehicles, armored engineering vehicles, sewage treatment vehicles), entertainment vehicles (entertainment vehicles, amusement park automatic driving devices, balance cars, etc.), rescue vehicles (such as fire engines, ambulances, power repair vehicles, engineering rescue vehicles, etc.), and the like.

[0056] It should be noted that the terms "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", etc. in the specification mean that the described embodiments can include a particular feature, structure, or characteristic, but every embodiment can not necessarily include the particular feature, structure, or characteristic. In addition, such terms do not necessarily refer to the same embodiment. In addition, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to achieve such a feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

[0057] It should be noted that in this paper, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hydraulic mounting system for connecting a powertrain, characterized by, The hydraulic suspension system comprises a liquid storage part, a water pump and a heat dissipating part connected by a circulation pipeline to form a closed loop, the liquid storage part has a cavity for accommodating liquid, and the hydraulic suspension system further comprises: an oil storage chamber for storing hydraulic oil and attenuating the vibration of the engine by suspending the flow of the hydraulic oil; a main spring rubber connected to the power assembly and at least partially attached to the outer wall of the liquid storage part; a temperature sensor arranged on the main spring rubber for detecting the temperature of the main spring rubber, and sending a first electric signal to the water pump when the temperature of the main spring rubber rises to a first preset temperature, and the water pump drives the liquid in the liquid storage part to circulate in the circulation pipeline and dissipate heat through the heat dissipating part.

2. The hydraulic suspension system of claim 1, wherein, When the temperature sensor detects that the temperature of the main spring rubber decreases from the first preset temperature to a second preset temperature, a second electric signal is sent to the water pump, and the water pump stops driving the liquid in the liquid storage part to circulate in the circulation pipeline.

3. The hydraulic suspension system of claim 1, wherein, The heat dissipating part is a plate heat exchanger, and the water pump is connected in series between the plate heat exchanger and the liquid storage part through the circulation pipeline.

4. The hydraulic suspension system of claim 3, wherein, The plate heat exchanger has a water inlet end and a water outlet end, the liquid storage chamber has a water inlet and a water outlet, the circulation pipeline includes a first pipeline and a second pipeline, the first pipeline connects the water outlet end and the water inlet, and the second pipeline passes through the water pump to connect the water outlet and the water inlet end.

5. The hydraulic suspension system of claim 3, wherein, Further comprising a heat dissipation fan arranged on one side of the plate heat exchanger to dissipate heat from the plate heat exchanger.

6. The hydraulic suspension system of claim 1, wherein, Further comprising a machine cabin, the main spring rubber, the liquid storage part and at least part of the power assembly are located in the machine cabin, and the heat dissipating part is located outside the machine cabin.

7. The hydraulic suspension system of claim 6, wherein, The heat dissipating part is arranged away from the power assembly.

8. The hydraulic suspension system of claim 1, wherein, The first preset temperature ranges from 65°C to 75°C.

9. A control method of a hydraulic mounting system, characterized by, The hydraulic suspension system comprises a liquid storage part, a water pump and a heat dissipating part connected by a circulation pipeline to form a closed loop, the liquid storage part has a cavity for accommodating liquid, and the hydraulic suspension system further comprises an oil storage chamber, a main spring rubber and a temperature sensor, the oil storage chamber is used for storing hydraulic oil and attenuating the vibration of the engine by suspending the flow of the hydraulic oil; the main spring rubber is at least partially attached to the outer wall of the liquid storage part, and the temperature sensor is arranged on the main spring rubber, and the control method comprises: When the temperature sensor detects that the temperature of the main spring rubber rises to a first preset temperature, a first electric signal is sent to the water pump, and the water pump drives the liquid in the liquid storage part to circulate in the circulation pipeline and dissipate heat through the heat dissipating part.

10. A vehicle characterized by comprising: The hydraulic suspension system as claimed in any one of claims 1-8. The hydraulic suspension system as claimed in any one of claims 1-8.

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