CN204037281U - Vehicle suspension system and self-propelled vehicle - Google Patents
Vehicle suspension system and self-propelled vehicle Download PDFInfo
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- CN204037281U CN204037281U CN201420483113.7U CN201420483113U CN204037281U CN 204037281 U CN204037281 U CN 204037281U CN 201420483113 U CN201420483113 U CN 201420483113U CN 204037281 U CN204037281 U CN 204037281U
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Abstract
The utility model provides a kind of vehicle suspension system, comprising: hydraulic actuating cylinder, is connected between wheel set and vehicle body; Pressure regulating unit; Hydraulic power unit; Hydraulic circuit, it is communicated with hydraulic actuating cylinder, pressure regulating unit and hydraulic power unit; Energy storage, is arranged in hydraulic circuit; Control unit, electrical connection pressure regulating unit and hydraulic power unit; Fuel tank, is communicated with pressure regulating unit and hydraulic power unit.The utility model additionally provides a kind of self-propelled vehicle, and it has any one vehicle suspension system above-mentioned.The subjective requirement of the different situation that the utility model can travel according to vehicle and chaufeur, regulates the operation pressure of hydraulic suspension system, thus changes the stiffness parameters of suspension system.
Description
Technical field
The utility model belongs to vehicle structure field, in particular to vehicle suspension system and self-propelled vehicle.
Background technology
Suspension is as the load transfer device between vehicle bridge and vehicle frame, and its application force has an impact to the ground connection property of tire and body vibrations, and then has influence on handling stability and the riding comfort of car load.
The passive suspension system of current application comprises steel spring, coil spring, torsion bar spring and air bellow etc., and generally, the bodywork height change caused by load change and the change of the vehicle body state such as inclination, pitching in travelling also increase.But after being suspended in and designing of correlation technique, its rigidity can not change according to above-mentioned change.
Utility model content
The purpose of this utility model is to provide vehicle suspension system and self-propelled vehicle, to solve the above problems.
Embodiments provides a kind of vehicle suspension system of the present utility model, comprising: hydraulic actuating cylinder, be connected between wheel set and vehicle body; Pressure regulating unit; Hydraulic power unit; Hydraulic circuit, it is communicated with hydraulic actuating cylinder, pressure regulating unit and hydraulic power unit; Energy storage, is arranged in hydraulic circuit; Control unit, electrical connection pressure regulating unit and hydraulic power unit; Fuel tank, is communicated with pressure regulating unit and hydraulic power unit.
Preferably, pressure regulating unit comprises: electromagnetic valve and proportional pressure control valve, controller in control unit is electrically connected the control end of electromagnetic valve and the control end of proportional pressure control valve respectively, electromagnetic valve is communicated with between by pass valve in hydraulic circuit and fuel tank, and proportional pressure control valve is communicated with between electromagnetic valve and fuel tank.
Preferably, electromagnetic valve is normally closed Solenoid ball valve.
Preferably, hydraulic power unit comprises: pump and motor, and controller electrical connection motor, motor pivotal joint pump, pump and by pass valve are all communicated with between electromagnetic valve and fuel tank.
Preferably, hydraulic power unit comprises: pump, manual by pass valve and motor, controller electrical connection motor, motor pivotal joint pump, the two ends that pump and by pass valve are all communicated with between electromagnetic valve with fuel tank, manual by pass valve is communicated with pump.
Preferably, control unit comprises: pressure sensor, Pattern Select Switch, controller and pressure precaution device, pressure sensor, it is electrically connected to controller, for the pressure in comparison liquid hydraulic circuit and setting value, when the pressure in hydraulic circuit is not equal to setting value, export the first signal to controller; When the pressure in hydraulic circuit equals setting value, export secondary signal to controller; Pattern Select Switch, for providing setting value, it is electrically connected to controller; Pressure precaution device, for reporting to the police to the pressure anomaly in hydraulic circuit.
Preferably, Pattern Select Switch is adjustable selected mode button.
Preferably, adjustable selected mode button is arranged near automobile driving cabin gauge panel.
In embodiment of the present utility model, additionally provide a kind of self-propelled vehicle, it has any one vehicle suspension system above-mentioned.
The subjective requirement of the different situation that the utility model can travel according to vehicle and chaufeur, regulates the operation pressure of hydraulic suspension system, thus changes the stiffness parameters of suspension system.
Should be understood that, it is only exemplary that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
Accompanying drawing to be herein merged in specification sheets and to form the part of this specification sheets, shows and meets embodiment of the present utility model, and is used from specification sheets one and explains principle of the present utility model.
Fig. 1 shows the schematic diagram of the vehicle suspension system according to the utility model embodiment;
Fig. 2 shows the schematic diagram of the vehicle suspension system according to the utility model preferred embodiment;
Fig. 3 shows the schematic diagram of the vehicle suspension system according to another preferred embodiment of the utility model;
Fig. 4 shows the workflow diagram of the vehicle suspension system according to the utility model preferred embodiment;
Fig. 5 shows the workflow diagram of the vehicle suspension system according to the utility model preferred embodiment;
Fig. 6 shows the workflow diagram of the vehicle suspension system according to another preferred embodiment of the utility model.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1 shows the schematic diagram of the vehicle suspension system according to the utility model embodiment, and this system comprises: hydraulic actuating cylinder 100, is connected between wheel set and vehicle body; Pressure regulating unit 200; Hydraulic power unit 300; Hydraulic circuit 400, it is communicated with hydraulic actuating cylinder 100, pressure regulating unit 200 and hydraulic power unit 300; Energy storage 500, is arranged in hydraulic circuit 400; Control unit 600, electrical connection pressure regulating unit 200 and hydraulic power unit 300; Fuel tank 700, is communicated with pressure regulating unit 200 and hydraulic power unit 300.
The utility model has set up the pressure regulating unit of control presssure in the suspension system of routine, and the different situation that can travel according to vehicle and the subjective requirement of chaufeur, regulate the operation pressure of hydraulic suspension system, thus change the stiffness parameters of suspension system.
Fig. 2 shows the schematic diagram of the vehicle suspension system according to the utility model preferred embodiment.
As shown in Figure 2, hydraulic circuit 400 comprises the first branch road 402 and the second branch road 404; Hydraulic actuating cylinder comprises multiple hydraulic actuating cylinder 112,114,116,118, its rod chamber is supported on wheel set, be divided into two groups, first group of hydraulic actuating cylinder 114,118 is connected to left side between each wheel set and vehicle body, and second group of hydraulic actuating cylinder 112,116 is connected to right side between each wheel set and vehicle body; First branch road 402 is communicated with the rodless cavity of first group of hydraulic actuating cylinder 114,118 and the rod chamber of second group of hydraulic actuating cylinder 112,116, and the second branch road 404 is communicated with the rod chamber of first group of hydraulic actuating cylinder 114,118 and the rodless cavity of second group of hydraulic actuating cylinder 112,116; Multiple energy storage 502,504, it is divided into two groups, and first group of energy storage 502 is arranged in the first branch road 402, and second group of energy storage 504 is arranged in the second branch road 404.
Fig. 3 shows the schematic diagram of the vehicle suspension system according to another preferred embodiment of the utility model.
As shown in Figure 3, hydraulic circuit 400 comprises the first branch road 402 and the second branch road 404; Hydraulic actuating cylinder comprises multiple hydraulic actuating cylinder 112,114,116,118, its rodless cavity is supported on wheel set, be divided into two groups, first group of hydraulic actuating cylinder 114,118 is connected to left side between each wheel set and vehicle body, and second group of hydraulic actuating cylinder 112,116 is connected to right side between each wheel set and vehicle body; First branch road 402 is communicated with the rod chamber of first group of hydraulic actuating cylinder 114,118 and the rodless cavity of second group of hydraulic actuating cylinder 112,116, and the second branch road 404 is communicated with the rodless cavity of first group of hydraulic actuating cylinder 114,118 and the rod chamber of second group of hydraulic actuating cylinder 112,116; Multiple energy storage 502,504, it is divided into two groups, and first group of energy storage 502 is arranged in the first branch road 402, and second group of energy storage 504 is arranged in the second branch road 404.
Above-described embodiment of the present disclosure lists two kinds of hydraulic actuating cylinder mutual contact modes, but does not limit the mutual contact mode that hydraulic actuating cylinder can also adopt other, thus meets the particular requirement of user.
As shown in Figures 2 and 3, pressure regulating unit 200 comprises: electromagnetic valve 209 and 210 and proportional pressure control valve 206, controller 610 in control unit 600 is electrically connected the control end of electromagnetic valve 209 and 210 and the control end of proportional pressure control valve 206 respectively, electromagnetic valve 209 and 210 is communicated with between hydraulic actuating cylinder 100 in hydraulic circuit 400 and proportional pressure control valve 206, and proportional pressure control valve 206 is communicated with between electromagnetic valve 207 and 208 and fuel tank 700.Electromagnetic valve can adopt normally closed Solenoid ball valve.Electromagnetic valve 209 is communicated with the first branch road, and electromagnetic valve 210 is communicated with the second branch road.
As shown in Figures 2 and 3, electromagnetic valve comprises two electromagnetic valves, first electromagnetic valve 209 is arranged between first group of hydraulic actuating cylinder 114 and 118 in the first branch road 402 and proportional pressure control valve 206, second electromagnetic valve 210 is arranged in series between second group of hydraulic actuating cylinder 112 and 116 in the second branch road 404 and proportional pressure control valve 206, and pump 330 is communicated with electromagnetic valve 209 and 210 respectively.
Proportional pressure control valve belongs to pressure-gradient control valve, for the pressure in control system, just opens overflow when system pressure is equal to, or greater than its settling pressure, has remain constant and play overload protective function to system system pressure.
Proportional pressure control valve belongs to a kind of apportioning valve, and apportioning valve is the proportional hydraulic valve of a kind of output and incoming signal.The pressure of liquid stream is proportionally controlled continuously according to given input electrical signal.
This gives a kind of implementation structure of pressure regulating unit, simple, respond well.
Preferably, hydraulic power unit comprises: pump and motor, and controller electrical connection motor, motor pivotal joint pump, pump and by pass valve are all communicated with between electromagnetic valve and fuel tank.Utilize motor and pump, the control of controller can be accepted, buy oil in hydraulic circuit.
As shown in Figures 2 and 3, hydraulic power unit 300 comprises: pump 330, manual by pass valve 340 and motor 320, controller 610 is electrically connected motor 320, motor 320 pivotal joint pump 330, pump 330 and proportional pressure control valve 206 are all communicated with between electromagnetic valve 209 and 210 and fuel tank 700, and manual by pass valve 340 is communicated with the two ends of pump 330.This gives a kind of implementation structure of hydraulic power unit, simple, respond well.Manual by pass valve 340 manually can set oil pressure relief in advance, thus can be used for protecting motor 320, in case the hypertonia that oil pipe blocking etc. cause burns out motor.This manual by pass valve 340 can be integrated in motor 320.
Pressure regulating unit 200 and hydraulic power unit 300 share fuel tank 700, make overflow from pressure regulating unit 200 hydraulic oil can circulation-supplied to hydraulic power unit 300.
As shown in Figures 2 and 3, control unit 600 comprises: pressure sensor 612 and 614, Pattern Select Switch 622, controller 610 and pressure precaution device 632, pressure sensor 612 and 614, it is electrically connected to controller 610, for the pressure in comparison liquid hydraulic circuit 400 and setting value, when the pressure in hydraulic circuit 400 is not equal to setting value, export the first signal to controller 610; When the pressure in hydraulic circuit 400 equals setting value, export secondary signal to controller 610; Pattern Select Switch 622, for providing setting value, it is electrically connected to controller 610; Pressure precaution device 632 is for reporting to the police to the pressure anomaly in hydraulic circuit.
Proportional pressure control valve 206 is pressure regulating valve, according to the incoming signal that control module is given, a corresponding delivery pressure value, when such as controller receives the first signal, require to buy oil in system hydraulic circuit, and require that oil pressure map is 2Mpa, when reaching this value, proportional pressure control valve just maintains pressure at 2Mpa, and unnecessary oil just overflows in fuel tank.
This gives a kind of implementation structure of control unit, simple, respond well.
This device can arrange suspension system soft or hard degree, such as, arrange Three models respectively by three push button controles, presses corresponding button, and machine operation and corresponding normally closed solenoid valve all can be made to open.Setting value can comprise multiple selectable value, and Pattern Select Switch is used for selecting one from multiple selectable value.The setting value of die formula operation pressure is 3Mpa, and the setting value of middle work pattern pressure is 2Mpa, and the setting value of soft mode formula operation pressure is 1Mpa.
Pressure sensor can be multiple.As shown in Figures 2 and 3, pressure sensor can comprise 612 and 614, detects the pressure in the first branch road and the pressure in the second branch road respectively.This mode achieves multiple soft or hard pattern easily.
Preferably, the first filter 352 is set between pump 330 and hydraulic circuit 400, the second filter 354 is set between pump 330 and fuel tank 700.
Preferably, dash pot valve 230 is set between hydraulic actuating cylinder and hydraulic circuit 400, dash pot valve 240 is set between energy storage and hydraulic circuit 400.
Preferably, control unit also comprises relay, and controller by the control end of relay electrical connection electromagnetic valve, and is electrically connected motor by relay.
The output voltage of controller does not likely mate with the control voltage of electromagnetic valve and the control voltage of motor, utilizes relay can in the unmatched situation of voltage, realizes the control of controller to electromagnetic valve and motor.
The embodiment of Fig. 2 and Fig. 3 achieves interconnection type vehicle suspension system, although the vehicle that the interconnected suspension of hydraulic pressure is housed has certain anti-roll capability, but in order to this ability can be realized better, in interconnected suspension fork mechanism, increase an ACTIVE CONTROL part, the performance of interconnected suspension is improved further.This vehicle suspension system adds active pressure and regulates, and anti-side can incline and improves vehicle riding comfort simultaneously, effectively improve vehicle stability.
In embodiment of the present utility model, additionally provide a kind of self-propelled vehicle, it has any one vehicle suspension system above-mentioned.
Fig. 4 shows the workflow diagram of the vehicle suspension system according to the utility model preferred embodiment, comprising:
Step S10, the Pattern Select Switch in vehicle suspension system sends mode command;
Step S20, the pressure in the hydraulic circuit of vehicle suspension system and the setting pressure in mode command compare by the pressure sensor in vehicle suspension system;
Step S30, the controller in vehicle suspension system, according to comparative result, starts the process of buying oil and makes the pressure in hydraulic circuit reach setting pressure.
The subjective requirement of the different situation that this method can travel according to vehicle and chaufeur, regulates the operation pressure of hydraulic suspension system, thus changes the stiffness parameters of suspension system.
Preferably, step S20 comprises: the pressure in pressure sensor comparison liquid hydraulic circuit and setting value, when the pressure in hydraulic circuit is not equal to setting value, exports the first signal to controller; When the pressure in hydraulic circuit equals setting value, export secondary signal to controller.
Preferably, the process of buying oil comprises: controller, when receiving the first signal, opens electromagnetic valve, and proportional pressure control valve is adjusted to setting pressure, and starter motor work, driving pump is bought oil to hydraulic circuit; Controller, when receiving secondary signal, makes motor and closed electromagnetic valve.
Preferably, controller carrys out the work of Controlling solenoid valve and motor by the break-make of control relay.
Fig. 5 shows the workflow diagram of the vehicle suspension system according to the utility model preferred embodiment, comprises the following steps:
Step S102, can add an adjustable selected mode button (i.e. Pattern Select Switch) near the gauge panel of operator's compartment, and chaufeur, according to the different road conditions travelled, selects a pattern, after this signal is determined, to controller one order.
Step S104, pressure adjustable structure is after pressure comparison thus, determines course of action, namely when the pressure in hydraulic circuit is not equal to setting value, exports the first signal to controller.
Step S106, controller when receiving the first signal, relay work.
Step S108, starter motor is started working and electromagnetic valve is opened, and enters the process of buying oil.
Step S110, normally closed solenoid valve is opened, and regulates proportional pressure control valve, and direct current hydraulic power unit starts.
Step S104, pressure sensor keeps the detection to hydraulic circuit, when the pressure in hydraulic circuit equals setting value, exports secondary signal to controller;
Step S112, relay work;
Step S114, closed electromagnetic valve, makes proportional pressure control valve also quit work.
Step S114, motor cuts out, and hydraulic power unit is shut down, and makes suspension system pressure keep certain.
The present embodiment overcomes the loss that passive suspension causes without pressure source, ensures that the rigidity of suspension system can require according to the subjectivity of the travel conditions of vehicle and chaufeur and change.
Fig. 6 shows the workflow diagram of the vehicle suspension system according to another preferred embodiment of the utility model.
Step S212, selected soft mode formula, pressure is set to 1MPa.Step S214, (process of buying oil is started) when controller 610 may be used for the first signal receiving soft mode formula, control relay closes, motor 320 is worked, driving pump 330 is bought oil to hydraulic circuit 400, the pressure of proportional pressure control valve is set to 1MPA and Controlling solenoid valve (can adopt normally closed solenoid valve) is opened, the oil pressure in loop raises or reduces.Step S216, after controller receives secondary signal, pressure equals the 1MPa of soft mode formula setting, and relay disconnects, and motor 320 and electromagnetic valve are closed simultaneously, and in loop, pressure is preset pressure 1MPa corresponding to soft mode formula.
Step S222, pattern in selected, pressure is set to 2MPa.Step S224, (process of buying oil is started) when controller 610 may be used for the first signal receiving middle pattern, control relay closes, motor 320 is worked, driving pump 330 is bought oil to hydraulic circuit 400, the pressure of proportional pressure control valve is set to 2MPA, and Controlling solenoid valve (can adopt normally closed solenoid valve) is opened, the oil pressure in loop raises or reduces.Step S226, after controller receives secondary signal, pressure equals the 2MPa of middle pattern setting, and relay disconnects, and motor 320 and electromagnetic valve are closed simultaneously, and in loop, pressure is preset pressure 2MPa corresponding to middle pattern.
Step S232, selected die formula, pressure is set to 3MPa.Step S234, (process of buying oil is started) when controller 610 may be used for the first signal receiving die formula, period relay closes, motor 320 is worked, driving pump 330 is bought oil to hydraulic circuit 400, the pressure of proportional pressure control valve is set to 3MPA, and Controlling solenoid valve (can adopt normally closed solenoid valve) is opened, the oil pressure in loop raises or reduces.Step S236, after controller receives secondary signal, pressure equals the 3MPa of die formula setting, and relay disconnects, and motor 320 and electromagnetic valve are closed simultaneously, and in loop, pressure is preset pressure 3MPa corresponding to die formula.
This device Three models respectively by three push button controles, can press corresponding button, and machine operation and corresponding normally closed solenoid valve all can be made to open.This preferred embodiment can provide multiple soft or hard pattern easily by setting value, can ensure that the characteristic parameter of suspension system requires with the applying working condition of vehicle and the subjectivity of chaufeur and changes well, traveling comfort and the road-holding property of automobile can be taken into account simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a vehicle suspension system, is characterized in that, comprising:
Hydraulic actuating cylinder, is connected between wheel set and vehicle body;
Pressure regulating unit;
Hydraulic power unit;
Hydraulic circuit, it is communicated with described hydraulic actuating cylinder, described pressure regulating unit and described hydraulic power unit;
Energy storage, is arranged in described hydraulic circuit;
Control unit, is electrically connected described pressure regulating unit and described hydraulic power unit;
Fuel tank, is communicated with described pressure regulating unit and described hydraulic power unit.
2. vehicle suspension system according to claim 1, it is characterized in that, described pressure regulating unit comprises: electromagnetic valve and proportional pressure control valve, controller in described control unit is electrically connected the control end of described electromagnetic valve and the control end of described proportional pressure control valve respectively, described electromagnetic valve is communicated with between described by pass valve in described hydraulic circuit and described fuel tank, and described proportional pressure control valve is communicated with between described electromagnetic valve and described fuel tank.
3. vehicle suspension system according to claim 2, is characterized in that, described electromagnetic valve is normally closed Solenoid ball valve.
4. vehicle suspension system according to claim 2, it is characterized in that, described hydraulic power unit comprises: pump and motor, and described controller is electrically connected described motor, pump described in described motor pivotal joint, described pump and described by pass valve are all communicated with between described electromagnetic valve and described fuel tank.
5. vehicle suspension system according to claim 2, it is characterized in that, described hydraulic power unit comprises: pump, manual by pass valve and motor, described controller is electrically connected described motor, pump described in described motor pivotal joint, the two ends that described pump and described by pass valve are all communicated with between described electromagnetic valve with described fuel tank, described manual by pass valve is communicated with described pump.
6. the vehicle suspension system according to claim 4 or 5, is characterized in that, described control unit comprises: pressure sensor, Pattern Select Switch, described controller and pressure precaution device,
Described pressure sensor, it is electrically connected to described controller, for the pressure in more described hydraulic circuit and setting value, when the pressure in described hydraulic circuit is not equal to described setting value, exports the first signal to described controller; When the pressure in described hydraulic circuit equals described setting value, export secondary signal to described controller;
Described Pattern Select Switch, for providing described setting value, it is electrically connected to described controller;
Described pressure precaution device, for reporting to the police to the pressure anomaly in hydraulic circuit.
7. vehicle suspension system according to claim 6, is characterized in that, described Pattern Select Switch is adjustable selected mode button.
8. vehicle suspension system according to claim 7, is characterized in that, described adjustable selected mode button is arranged near automobile driving cabin gauge panel.
9. vehicle suspension system according to claim 6, is characterized in that, described control unit also comprises relay, and described controller is electrically connected the control end of described electromagnetic valve by described relay, and is electrically connected described motor by described relay.
10. a self-propelled vehicle, is characterized in that having the vehicle suspension system described in any one of the claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483113.7U CN204037281U (en) | 2014-08-25 | 2014-08-25 | Vehicle suspension system and self-propelled vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483113.7U CN204037281U (en) | 2014-08-25 | 2014-08-25 | Vehicle suspension system and self-propelled vehicle |
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| CN204037281U true CN204037281U (en) | 2014-12-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228515A (en) * | 2014-08-25 | 2014-12-24 | 常州万安汽车部件科技有限公司 | Vehicle suspension system, working method thereof and motor vehicle |
| CN109955673A (en) * | 2017-12-26 | 2019-07-02 | 郑州宇通客车股份有限公司 | A kind of hydro-pneumatic suspension system and a kind of vehicle |
| CN114475135A (en) * | 2022-02-11 | 2022-05-13 | 山东美晨工业集团有限公司 | Method for adjusting roll stiffness of oil-gas interconnected suspension system |
-
2014
- 2014-08-25 CN CN201420483113.7U patent/CN204037281U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228515A (en) * | 2014-08-25 | 2014-12-24 | 常州万安汽车部件科技有限公司 | Vehicle suspension system, working method thereof and motor vehicle |
| CN109955673A (en) * | 2017-12-26 | 2019-07-02 | 郑州宇通客车股份有限公司 | A kind of hydro-pneumatic suspension system and a kind of vehicle |
| CN114475135A (en) * | 2022-02-11 | 2022-05-13 | 山东美晨工业集团有限公司 | Method for adjusting roll stiffness of oil-gas interconnected suspension system |
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