CN218876799U - Vehicle suspension system and vehicle - Google Patents
Vehicle suspension system and vehicle Download PDFInfo
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- CN218876799U CN218876799U CN202223236038.8U CN202223236038U CN218876799U CN 218876799 U CN218876799 U CN 218876799U CN 202223236038 U CN202223236038 U CN 202223236038U CN 218876799 U CN218876799 U CN 218876799U
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Abstract
The utility model provides a vehicle suspension system and a vehicle, belonging to the technical field of vehicles, wherein the vehicle suspension system comprises a liquid pump assembly, a height adjusting valve, a horizontal adjusting valve and a shock absorber group, and the shock absorber group comprises a plurality of shock absorbers; the system is provided with a first working state in which the liquid pump assembly, the height adjusting valve and the shock absorber set are communicated in sequence, or a second working state in which the horizontal adjusting valve is communicated with the shock absorber set; when the system is in a first working state, the height adjusting valve communicates the liquid pump assembly with the oil cavity of at least one shock absorber; when the system is in a second working state, the horizontal regulating valve communicates oil chambers of at least two oppositely arranged shock absorbers. The utility model provides a vehicle suspension system utilizes the altitude mixture control valve that sets up can realize lifting and the decline function of vehicle, utilizes level control valve can realize the vehicle leveling, reduces because the unbalanced electronic oil pump oil charge number of times that starts of vehicle, and the low system energy consumption makes the system scheme more energy-conserving.
Description
Technical Field
The utility model relates to a vehicle manufacturing technical field especially relates to a vehicle suspension system and vehicle.
Background
The suspension has the basic function of providing vertical support for the vehicle body, and has the main functions of obstructing and absorbing the transmission of road excitation to the inside of the vehicle, using the shock absorber as an actuator and applying a power source to realize the lifting of the vehicle besides supporting the vehicle body.
The suspension of traditional vehicle generally is assembled by bumper shock absorber and spring combination, and the lifting of vehicle can not be realized to this kind of suspension, to lifting function, and the high-end motorcycle type can carry on air suspension to the rising and the reduction of realization vehicle, but air suspension is more suitable for the travelling comfort vehicle, can't satisfy the high strength cross-country demand under the complicated car conditions such as continuous steering, or vehicle one side take place to incline.
Therefore, there is a need to solve the problem that the suspension device in the prior art cannot meet the driving state requirement of the vehicle under complicated vehicle conditions.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a vehicle suspension system and a vehicle, so as to solve the problem that the suspension device in the prior art cannot satisfy the driving state requirement of the vehicle under the complex vehicle condition.
Based on the above object, the utility model provides a vehicle suspension system, include:
the shock absorber comprises a liquid pump assembly, a height adjusting valve, a horizontal adjusting valve and a shock absorber group, wherein the shock absorber group comprises a plurality of shock absorbers which are arranged in a pairwise opposite manner;
the vehicle suspension system is provided with a first working state in which a liquid pump assembly, a height adjusting valve and a shock absorber set are communicated in sequence, or a second working state in which a horizontal adjusting valve is communicated with the shock absorber set; when the vehicle suspension system is in a first working state, the height adjusting valve communicates the liquid pump assembly with the oil chamber of at least one shock absorber; when the vehicle suspension system is in a second working state, the level regulating valve communicates oil chambers of at least two oppositely arranged shock absorbers.
Further, the height adjusting valve comprises a first valve body and a first valve rod, and the first valve rod is controlled by external force to be provided with at least one connection station and at least one disconnection station in the first valve body;
when the first valve rod is positioned at a communication station, the first valve body communicates the liquid pump assembly with the oil cavities of at least two oppositely arranged shock absorbers and disconnects the oil cavities of the rest shock absorbers from the liquid pump assembly;
when the first valve rod is located at a disconnection station, the first valve body is disconnected from each shock absorber.
Further, the first valve body comprises a first oil port communicated with the liquid pump assembly, and a plurality of working oil ports communicated with oil chambers of the shock absorbers.
Furthermore, the first valve body is provided with a plurality of first one-way check interfaces, and when the first valve rod is positioned at a disconnection station, the oil cavities of the shock absorbers are correspondingly connected with the first one-way check interfaces one by one.
Furthermore, the first valve body is also provided with a second oil port suitable for being communicated with a pressure measuring piece, and the pressure measuring piece is used for detecting the oil pressure in the first valve body.
Further, the level regulating valve comprises a second valve body and a second valve rod, and the second valve rod is controlled by external force to have at least one leveling station and at least one neutral station in the second valve body;
when the second valve rod is positioned at a leveling station, the second valve body connects the oil chambers of at least two oppositely arranged shock absorbers and disconnects the oil chambers of the rest shock absorbers from the liquid pump assembly;
when the second valve rod is located at the middle station, the second valve body is disconnected with each shock absorber.
Further, the second valve body includes a regulating oil port communicating with an oil chamber of each of the shock absorbers.
Furthermore, the second valve body is provided with a plurality of second one-way non-return interfaces, and when the second valve rod is positioned at a middle station, the oil cavity of each shock absorber is correspondingly connected with each second one-way non-return interface one by one.
Further, the shock absorber group comprises two groups of shock absorbers which are arranged in a pairwise opposite mode;
the height adjusting valve is a three-position six-way valve, four working oil ports are arranged in the three-position six-way valve, and each working oil port is communicated with an oil cavity of the shock absorber;
and/or the presence of a gas in the gas,
the horizontal regulating valve is a three-position four-way valve, four regulating oil ports are arranged in the three-position four-way valve, and each regulating oil port is communicated with an oil cavity of one shock absorber.
Based on the same inventive concept, the utility model also provides a vehicle, including as above any one the vehicle suspension system.
From the above, the vehicle suspension system provided by the utility model has the advantages that the oil cavity of the shock absorber is communicated with the liquid pump assembly through the height adjusting valve, and the lifting function of the shock absorber is realized by utilizing hydraulic oil; through setting up the oil pocket intercommunication of the bumper shock absorber of level control valve with two at least relative settings, when the vehicle in turn to in succession or vehicle one side slope back time, the oil pocket pressure of two bumper shock absorbers can be balanced to the oil pocket intercommunication of the bumper shock absorber of double-phase relative setting to avoid the liquid pump assembly to need extra oil charge to corresponding unbalanced shock absorber, reduce the start-up number of times of liquid pump assembly, the effectual suspension system energy consumption that has reduced makes the whole more energy-conserving of vehicle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a topological principle of a vehicle suspension system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a liquid pump assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a height adjustment valve and a level adjustment valve according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an oil path during front suspension lift according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an oil path when the front suspension height is lowered according to the embodiment of the present invention;
fig. 6 is a schematic diagram of an oil path during rear suspension lift according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an oil path when the rear suspension height is lowered in the embodiment of the present invention;
FIG. 8 is a schematic diagram of an oil path for leveling the height of the front body in the embodiment of the present invention;
fig. 9 is a schematic diagram of an oil circuit for leveling the height of the rear vehicle body in the embodiment of the present invention.
Description of the reference numerals
11. A hydraulic pump; 12. a liquid storage pot; 13. a check valve; 14. a reflux control valve;
21. a first shock absorber; 22. a second shock absorber; 23. a third damper; 24. a fourth shock absorber; 25. a damping spring;
31. a first one-way check interface; 32. a working oil port; 33. a first oil port; 34. a second oil port; 36. a first communicating station; 37. a second communicating station; 38. disconnecting the station;
41. a second one-way check interface; 42. an adjusting oil port; 44. a first leveling station; 45. a second leveling station; 46. a middle station;
5. a pressure sensor; 6. a vehicle body height sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
During the running process of the vehicle, if the vehicle is under some complex running vehicle conditions, for example, continuous sharp steering action is performed, or a certain angle of inclination is performed on a running road surface, the internal pressure of the two shock absorbers corresponding to the two lateral sides of the vehicle is changed, specifically, the pressure applied to the shock absorber facing the inclined direction of the vehicle is higher than the pressure applied to the shock absorber away from the inclined direction, in this scene, after the vehicle is righted, the internal leakage of the shock absorber facing the inclined direction of the vehicle is more than the internal leakage of the shock absorber away from the inclined direction due to the influence of the higher pressure, so that the problem that the height of the vehicle body on one side facing the inclined direction is lower than that on one side away from the inclined direction even if the vehicle is righted, and the running state requirement of the vehicle under the complex running vehicle conditions can not be met.
In view of the above, in one or more embodiments, the present application provides a vehicle suspension system, which includes a liquid pump assembly, a height adjusting valve, a level adjusting valve, and a shock absorber set, wherein the shock absorber set includes a plurality of shock absorbers, and the shock absorbers are arranged opposite to each other in pairs;
the system is provided with a first working state in which the liquid pump assembly, the height adjusting valve and the shock absorber set are communicated in sequence, or a second working state in which the horizontal adjusting valve is communicated with the shock absorber set; when the vehicle suspension system is in a first working state, the height adjusting valve communicates the liquid pump assembly with the oil chamber of at least one shock absorber; when the vehicle suspension system is in a second working state, the level regulating valve communicates oil chambers of at least two oppositely arranged shock absorbers.
According to the vehicle suspension system, the oil cavity of the shock absorber is communicated with the liquid pump assembly through the height adjusting valve, and the lifting function of the shock absorber is realized by utilizing hydraulic oil; through setting up the oil pocket intercommunication of the bumper shock absorber that level control valve will two at least relative settings, when the vehicle in turn to in succession or vehicle one side slope back time, the oil pocket intercommunication of the bumper shock absorber of double-phase relative setting can balance the oil pocket pressure of two bumper shock absorbers, thereby avoid needing the liquid pump assembly extra oil charge to corresponding unbalanced shock absorber in order to balance the automobile body height after just returning, reduce the start-up number of times of liquid pump assembly, the effectual vehicle suspension system energy consumption that has reduced, make the whole more energy-conserving of vehicle.
Specifically, in some embodiments, as shown in fig. 1 and fig. 2, the liquid pump assembly includes a hydraulic pump 11, a liquid storage pot 12, and an oil outlet pipeline, wherein an oil inlet of the hydraulic pump 11 is communicated with an oil outlet of the liquid storage pot 12, a check valve 13 is installed on the oil outlet pipeline, and an oil outlet of the hydraulic pump 11 is communicated with an oil inlet of the height adjusting valve through the oil outlet pipeline. Here, the hydraulic pump 11 assembly further includes a return line connected in parallel to the oil outlet line, and a return control valve 14 is installed on the return line, and this arrangement can prevent the hydraulic pump 11 from being impacted by the oil backflow when the vehicle height is reduced, thereby functioning as a check and protection for the hydraulic pump 11.
In some embodiments, the shock absorber set includes two sets of shock absorbers disposed opposite to each other in pairs, each shock absorber is disposed on the frame near the wheel, where each shock absorber is disposed corresponding to a wheel, and the shock absorbers disposed opposite to each other in pairs are disposed on two lateral sides of the vehicle body, that is, as shown in fig. 1, a first shock absorber 21 is disposed in a left front direction of the vehicle body, and a second shock absorber 22 is disposed in a right front direction of the vehicle body, which are collectively referred to as a front suspension; the third damper 23 is provided in the left-rear direction, and the fourth damper 24 is provided in the right-rear direction, which are collectively referred to as a rear overhang.
Further, the position that the frame corresponds each bumper shock absorber all is provided with a damping spring 25, and damping spring 25's one end links firmly with the frame, and the other end links firmly with the automobile body, sets up damping spring 25 and can share automobile body weight to alleviate the inside hydraulic pressure force of bumper shock absorber, make the system more reliable stable.
As shown in fig. 3, the height adjusting valve comprises a first valve body and a first valve rod, wherein the first valve rod is controlled by external force and has at least one connection station and at least one disconnection station 38 in the first valve body;
when the first valve rod is positioned at a communication station, the first valve body communicates the liquid pump assembly with the oil cavities of at least two oppositely arranged shock absorbers and disconnects the oil cavities of the rest shock absorbers from the liquid pump assembly;
when the first valve stem is at the disconnect station 38, the first valve body is disconnected from each of the shock absorbers.
In the above embodiment, the first valve body includes a first oil port 33 communicated with the liquid pump assembly, and a plurality of working oil ports 32 communicated with the oil chambers of the respective shock absorbers, and a second oil port 34 adapted to be communicated with a pressure measuring member for detecting the oil pressure in the first valve body is further provided in the first valve body, wherein the pressure measuring member may employ a pressure sensor 5 communicated with the second oil port 34, and the pressure data transmitted by the pressure sensor 5 controls the station of the first valve stem.
As shown in fig. 3, the oil port a in fig. 3 is communicated with the liquid pump assembly, the oil port B is communicated with the oil chamber of the first shock absorber, the oil port C is communicated with the oil chamber of the second shock absorber, the oil port D is communicated with the oil chamber of the third shock absorber, and the oil port E is communicated with the oil chamber of the fourth shock absorber, and it can also be seen from fig. 3 that the oil ports of the height adjusting valve and the level adjusting valve, which output to the shock absorbers, can share the same oil path, and this arrangement also further simplifies the connection circuit.
For example, the height adjusting valve is an existing three-position six-way reversing valve, the first valve body of the three-position six-way reversing valve is provided with four working oil ports 32, each working oil port 32 is respectively communicated with an oil cavity of a damper, and here, the three-position six-way reversing valve can adopt an electromagnetic valve, and an armature is adsorbed by the electromagnetic action to drive the position of a valve rod inside the valve body to change, so that oil is guided into a correct oil port according to the position of the valve rod.
Here, it should be noted that the working oil port 32 shown in fig. 3 is only schematically illustrated, and it can be seen in fig. 3 that the working oil port 32 is not directly connected to the oil path of each shock absorber, and this is provided to indicate that the oil path of each shock absorber is in a disconnected state; in an actual three-position six-way reversing valve, the working oil port 32 should be communicated with the oil cavity of each shock absorber, for example, fig. 4 or 5, and the communication or disconnection state of the working oil port 32 and the oil cavity of each shock absorber is changed through the position change of the first valve rod in the first valve body. The three-position six-way directional valve can refer to a directional valve commonly used in the field of vehicle structures, and should have other dependent structures for realizing the directional function, such as an armature, a spring, a sealing assembly and the like, and other structures of the three-position six-way directional valve in the embodiment are not described in detail.
In the above embodiment, further, when the height adjusting valve is a three-position six-way reversing valve, the first valve rod has three positions in the first valve body, namely, two connected working positions and one disconnected working position 38.
Taking fig. 4 as an example, after the car machine system receives a vehicle body lifting signal, the hydraulic pump 11 is started to pump oil, and the return flow control valve 14 is in a closed state at this time because the return flow control valve 14 is subjected to oil pressure of the hydraulic pump 11; when the pressure measuring piece detects that the pressure in the first valve body reaches the designed posture pressure of the first shock absorber 21 and the second shock absorber 22, the electromagnet is controlled to adsorb the armature and drive the first valve rod to be located at a first communication station 36, at the moment, oil in the liquid storage pot 12 is conveyed to the first valve body through the hydraulic pump 11 and is respectively communicated with oil cavities of the first shock absorber 21 in the front left and the second shock absorber 22 in the front right through the working oil port 32 of the first valve body; the hydraulic pump 11 pumps oil into the first shock absorber 21 and the second shock absorber 22, thereby achieving front suspension lifting.
Taking fig. 5 as an example, after the car machine system receives a vehicle body descending signal, the electromagnet is controlled to adsorb the armature to drive the first valve rod to be located at the first communication station 36, at this time, the oil pressure of the oil chambers of the first shock absorber 21 and the second shock absorber 22 is applied to the return flow control valve 14, and the return flow control valve 14 is in an open state at this time; the liquid storage pot 12 is communicated with the oil chambers of the first shock absorber 21 at the front left and the second shock absorber 22 at the front right through the working oil port 32 of the first valve body, the oil chambers of the first shock absorber 21 and the second shock absorber 22 sequentially flow back to the liquid storage pot 12 through the height adjusting valve and the backflow control valve 14, and the front suspension height is lowered.
Taking fig. 6 as an example, after the vehicle body lifting signal is received by the vehicle system and the front suspension finishes lifting, the hydraulic pump 11 is started to pump oil, when the pressure measuring piece detects that the pressure in the first valve body reaches the designed posture pressure of the third damper 23 and the fourth damper 24, the electromagnet is controlled to adsorb the armature and drive the first valve rod to be positioned at the second communication station 37, at this time, the oil in the liquid storage pot 12 is conveyed to the first valve body through the hydraulic pump 11 and is respectively communicated with the oil cavities of the left rear third damper 23 and the right rear fourth damper 24 through the working oil port 32 of the first valve body; the hydraulic pump 11 pumps oil into the third damper 23 and the fourth damper 24, thereby achieving the rear suspension lift.
Taking fig. 7 as an example, after the vehicle body descending signal is received by the vehicle system and the front suspension finishes ascending and descending, the electromagnet is controlled to adsorb the armature and drive the first valve rod to be located at the second communication station 37, at this time, the oil chamber of the liquid storage pot 12 is communicated with the oil chambers of the left rear third shock absorber 23 and the right rear fourth shock absorber 24 through the working oil port 32 of the first valve body, oil in the oil chambers of the third shock absorber 23 and the fourth shock absorber 24 sequentially flows back to the liquid storage pot 12 through the height adjusting valve and the backflow control valve 14, and the rear suspension height descends. The attitude pressure refers to an oil pressure in the oil chamber when the shock absorber needs to be lifted to a preset height.
It should be noted that, when the first valve rod is located at the first communicating position 36, two of the working oil ports 32 are communicated with the first shock absorber 21 and the second shock absorber 22, and the oil paths of the third shock absorber 23 located at the rear left and the fourth shock absorber 24 located at the rear right are disconnected from the other two working oil ports 32 of the height adjusting valve; when the first valve stem is located at the second communication station 37, two of the working oil ports 32 are communicated with the third and fourth shock absorbers 23 and 24, and the oil passages of the first and second shock absorbers 21 and 22 located at the front left and the front right are disconnected from the other two working oil ports 32 of the height adjusting valve. That is to say, the height adjusting valve in this embodiment can lift two shock absorbers that set up relatively simultaneously, and in some embodiments, the height adjusting valve also can adopt other valve body structures to regulate and control four shock absorbers simultaneously.
In some embodiments, as also shown in fig. 3, a plurality of first one-way check interfaces 31 are provided in the first valve body, and when the first valve rod is in the disconnecting station 38 in a natural state, the oil path interface of the oil chamber of each shock absorber is connected with each first one-way check interface 31 in a one-to-one correspondence manner. Here, as described above, when the first valve rod is in the disconnection position 38, that is, when the height adjustment valve is in the power-off state, at this time, the oil passages of the first shock absorber 21, the second shock absorber 22, the third shock absorber 23, and the fourth shock absorber 24 are connected to the first one-way check interfaces 31, and this arrangement enables the oil passages of the shock absorbers to be sealed individually, and prevents the oil passages of the shock absorbers from flowing back, thereby facilitating the high pressure maintaining of the vehicle suspension system, reducing the oil leakage in the spool, and preventing the vehicle height from gradually decreasing with the passage of time.
On the basis of the first one-way check interface 31, when the first valve rod is located at the first communication station 36 or the second communication station 37, the oil line interfaces of the two shock absorbers disconnected from the first valve body can be connected with the first one-way check interface 31, so that the oil liquid of the two disconnected shock absorbers is prevented from flowing back to influence the internal oil pressure of the first valve rod.
As also shown in fig. 3, in some embodiments, the level regulating valve includes a second valve body and a second valve stem, the second valve stem being controlled by an external force to have at least one leveling station and at least one neutral station 46 in the second valve body;
when the second valve rod is positioned at a leveling station, the second valve body connects the oil chambers of at least two oppositely arranged shock absorbers and disconnects the oil chambers of the rest shock absorbers from the liquid pump assembly;
when the second valve stem is in the neutral position 46, the second valve body is disconnected from each of the shock absorbers.
In the above embodiment, the second valve body includes the adjusting oil ports 42 communicated with the oil chambers of the respective shock absorbers, and for example, the horizontal adjusting valve is an existing three-position four-way reversing valve, the second valve body of the three-position four-way reversing valve is provided with four adjusting oil ports 42, each adjusting oil port 42 is respectively communicated with an oil chamber of one shock absorber, the three-position four-way reversing valve can adopt an electromagnetic valve, and the armature is adsorbed by electromagnetic action to drive the position of the valve rod located inside the valve body to change, so that the oil is guided into the correct oil port according to the position of the valve rod. Here, reference may be made to a reversing valve commonly used in the field of vehicle construction, and other dependent structures such as an armature, a spring, a seal assembly, etc. should be provided to perform the reversing function, and other structures of the three-position four-way reversing valve in the present embodiment will not be described in detail.
In the above embodiment, further, when the level adjustment valve is a three-position four-way reversing valve, the second valve stem has three positions in the second valve body, namely two leveling positions and a neutral position 46.
Taking fig. 8 as an example, assuming that the vehicle passes through a continuous right-turn condition, the oil pressure in the oil chamber of the second shock absorber 22 in the front right is increased, which results in that the oil leakage amount in the oil chamber of the second shock absorber 22 is greater than the oil leakage amount in the oil chamber of the first shock absorber 21, after the vehicle returns to the right, because the oil leakage amount in the oil chamber of the second shock absorber 22 is greater than the oil leakage amount in the oil chamber of the first shock absorber 21, the lifting height of the second shock absorber 22 is less than the lifting height of the first shock absorber 21, and the right height of the vehicle body is reduced, in this case, the vehicle system controls the horizontal adjusting valve to be powered on, the second valve rod is located at the first leveling station 44, the oil path of the first shock absorber 21 is communicated with the oil chamber of the second shock absorber 22 through the adjusting oil port 42 of the horizontal adjusting valve, and the oil pressures of the first shock absorber 21 and the oil chamber of the second shock absorber 22 are the same, so that the lateral heights of the front vehicle body are consistent.
Similarly, taking the example shown in fig. 9 as an example, still assuming that the oil pressure in the oil chamber of the fourth shock absorber 24 at the rear right increases when the vehicle passes through the continuous right-turn condition, which results in that the oil leakage amount in the oil chamber of the fourth shock absorber 24 is greater than the oil leakage amount in the oil chamber of the opposite third shock absorber 23, after the vehicle is aligned back, because the oil leakage amount in the oil chamber of the fourth shock absorber 24 is greater than the oil leakage amount in the oil chamber of the opposite third shock absorber 23, the lift height of the fourth shock absorber 24 is less than the lift height of the third shock absorber 23, and the vehicle body has a reduced right height, in this case, the vehicle system controls the horizontal adjustment valve to be energized, the second valve rod is located at the second leveling station 45, the oil passage of the fourth shock absorber 24 is communicated with the oil passage of the third shock absorber 23 via the adjustment oil passage 42 of the horizontal adjustment valve, and the oil pressure of the fourth shock absorber 24 is the same as the oil pressure in the oil chamber of the third shock absorber 23, so that the transverse height of the rear vehicle body is the same.
It should be noted that the level adjusting valve in this embodiment can simultaneously level two shock absorbers that are oppositely disposed, and in some embodiments, the level adjusting valve may also adopt other valve body structures to simultaneously level four shock absorbers.
In some embodiments, as shown in fig. 3, a plurality of second one-way check interfaces 41 are disposed in the second valve body, and when the second valve rod is located at the neutral position 46, the oil chambers of the shock absorbers may be connected to the first one-way check interfaces 31 in a one-to-one correspondence manner, or may be connected to the second one-way check interfaces 41 in a one-to-one correspondence manner. Here, when the second valve stem is in the first leveling station 44 or the second leveling station 45, the oil line interfaces of the two opposite shock absorbers, which are disconnected from the second valve body, may be connected to the second one-way check interface 41, so as to prevent the oil of the two disconnected shock absorbers from flowing back to affect the internal oil pressure of the second valve stem.
In some embodiments, the vehicle is further provided with four body height sensors 6 at positions corresponding to the shock absorbers, and whether the vehicle body is in an inclined state is judged according to measurement data of the body height sensors 6, so that whether a leveling valve is required to intervene to level the shock absorbers is judged. In some embodiments, the body height sensor 6 may be replaced by other similar structures, such as a vehicle lateral inclination measurement sensor.
In some embodiments, the in-vehicle system may set the related determination and control command by using a PLC or other programming techniques, which may be implemented by using the existing related technical means, and this is not described in detail in this embodiment.
In some embodiments, the height adjusting valve and the level adjusting valve can be integrated into a related hardware carrier, the communication oil path of the height adjusting valve and each shock absorber can be shared with the communication oil path of the level adjusting valve and each shock absorber, and the communication of the oil paths of the height adjusting valve and each shock absorber is realized through the technical structure of arranging the three-way joint. The arrangement can further reduce the number of the electromagnetic valves for adjusting and lifting the suspension, reduce the control difficulty and simplify the logic command.
Based on the same inventive concept, the present application also provides a vehicle comprising the vehicle suspension system as described in any one of the above embodiments, and therefore, all the advantages of the vehicle suspension system are achieved because the vehicle comprises the vehicle suspension system as described in any one of the above embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments can be made, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A vehicle suspension system, comprising:
the shock absorber comprises a liquid pump assembly, a height adjusting valve, a horizontal adjusting valve and a shock absorber set, wherein the shock absorber set comprises a plurality of shock absorbers which are arranged in a pairwise opposite mode;
the vehicle suspension system is provided with a first working state in which a liquid pump assembly, a height adjusting valve and a shock absorber set are communicated in sequence, or a second working state in which a horizontal adjusting valve is communicated with the shock absorber set; when the vehicle suspension system is in a first working state, the height adjusting valve communicates the liquid pump assembly with the oil chamber of at least one shock absorber; when the vehicle suspension system is in a second working state, the level regulating valve communicates oil chambers of at least two oppositely arranged shock absorbers.
2. The vehicle suspension system of claim 1, wherein said height adjustment valve includes a first valve body and a first valve stem, said first valve stem being controlled by an external force to have at least one on-position and at least one off-position in said first valve body;
when the first valve rod is positioned at the communication station, the first valve body communicates the liquid pump assembly with the oil cavities of at least two oppositely arranged shock absorbers and disconnects the oil cavities of the rest shock absorbers from the liquid pump assembly;
when the first valve rod is located at a disconnecting station, the first valve body is disconnected from each shock absorber.
3. The vehicle suspension system according to claim 2, wherein the first valve body includes a first oil port communicating with the liquid pump assembly, and a plurality of working oil ports communicating with the oil chamber of each of the shock absorbers.
4. The vehicle suspension system of claim 2, wherein the first valve body is provided with a plurality of first one-way check ports, and the oil chamber of each shock absorber is connected to each first one-way check port in a one-to-one correspondence when the first valve stem is in the disconnect position.
5. The vehicle suspension system according to claim 2, wherein said first valve body is further provided with a second oil port adapted to communicate with a pressure measuring member for detecting an oil pressure in said first valve body.
6. The vehicle suspension system of claim 1, wherein said level adjustment valve includes a second valve body and a second valve stem, said second valve stem being controlled by an external force having at least one leveling station and at least one neutral station in said second valve body;
when the second valve rod is positioned at a leveling station, the second valve body connects the oil chambers of at least two oppositely arranged shock absorbers and disconnects the oil chambers of the rest shock absorbers from the liquid pump assembly;
when the second valve rod is located at the middle station, the second valve body is disconnected with each shock absorber.
7. The vehicle suspension system according to claim 6, wherein the second valve body includes a regulator oil port that communicates with the oil chamber of each of the shock absorbers.
8. The vehicle suspension system according to claim 6 wherein said second valve body is provided with a plurality of second one-way check ports, and wherein said oil chamber of each of said shock absorbers is connected to each of said second one-way check ports in a one-to-one correspondence when said second valve stem is in the neutral position.
9. The vehicle suspension system of claim 1 wherein said set of shock absorbers comprises two sets of shock absorbers disposed in opposing pairs;
the height adjusting valve is a three-position six-way valve, four working oil ports are arranged in the three-position six-way valve, and each working oil port is communicated with an oil cavity of the shock absorber;
and/or the presence of a gas in the atmosphere,
the horizontal regulating valve is a three-position four-way valve, four regulating oil ports are arranged in the three-position four-way valve, and each regulating oil port is communicated with an oil cavity of the shock absorber.
10. A vehicle comprising a vehicle suspension system as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223236038.8U CN218876799U (en) | 2022-11-30 | 2022-11-30 | Vehicle suspension system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223236038.8U CN218876799U (en) | 2022-11-30 | 2022-11-30 | Vehicle suspension system and vehicle |
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| CN218876799U true CN218876799U (en) | 2023-04-18 |
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| CN202223236038.8U Active CN218876799U (en) | 2022-11-30 | 2022-11-30 | Vehicle suspension system and vehicle |
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| CN (1) | CN218876799U (en) |
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