WO2011025225A2 - 공기식 현가시스템의 차체높이 다중 조절장치 - Google Patents
공기식 현가시스템의 차체높이 다중 조절장치 Download PDFInfo
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- WO2011025225A2 WO2011025225A2 PCT/KR2010/005643 KR2010005643W WO2011025225A2 WO 2011025225 A2 WO2011025225 A2 WO 2011025225A2 KR 2010005643 W KR2010005643 W KR 2010005643W WO 2011025225 A2 WO2011025225 A2 WO 2011025225A2
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- valve
- height
- vehicle body
- compressed air
- vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/044—Self-pumping fluid springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
- B60G17/0155—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/056—Regulating distributors or valves for hydropneumatic systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/412—Pneumatic actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/42—Electric actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/20—Mounting of accessories, e.g. pump, compressor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/419—Gears
- B60G2204/4192—Gears rack and pinion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/423—Rails, tubes, or the like, for guiding the movement of suspension elements
- B60G2204/4232—Sliding mounts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/202—Height or leveling valve for air-springs
- B60G2500/2022—Height or leveling valve for air-springs with valve seat actuation for selectively adjusting neutral height
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
Definitions
- the present invention relates to a vehicle height multi-adjustment device of the pneumatic suspension system, and more particularly to a simple structure, the height of the vehicle body can be adjusted as desired by the user as desired, the body of the pneumatic suspension system of low cost of the device Height multi-adjustment device.
- FIGS. 1 to 3 An example of a general pneumatic suspension system applied to a vehicle is shown in FIGS. 1 to 3.
- the configuration of the conventional pneumatic suspension system 501 is an air spring 530 provided between the vehicle body 510 and the suspension arm 520 supporting the axle 3 and According to the load change of the vehicle body 510, the compressed air supplied from the air tank (not shown) is supplied to the air spring 530 or discharged the compressed air inside the air spring 530 to the outside to maintain a predetermined height of the vehicle body It consists of a mechanical leveling valve 540 and a linkage 553.
- the double mechanical leveling valve 540 rotates the valve body 541 and the valve body 541 which are supplied with compressed air supplied from the air tank to the air spring 530 and discharged from the air spring 530.
- the rotating handle 551 is configured.
- the conventional pneumatic suspension system 501 operates in three states, a neutral state, an intake state, and an exhaust state, as shown in FIGS. 1 to 3 according to the load change of the vehicle body.
- the neutral state is a state in which the vehicle body 510 maintains the designed vehicle height, as shown in FIG. 1, and at this time, the valve body 541 and the rotation handle 551 of the leveling valve 540 are horizontally compressed air. Both supply and discharge are blocked.
- the air spring 530 when the air spring 530 is compressed due to an increase in load, such as a load on a vehicle or a driver or a passenger, the height of the vehicle body 510 is lowered as shown in FIG. 2, the leveling valve 540. Is operated to supply compressed air to the air spring 530 until it is neutral, as shown in FIG.
- the conventional pneumatic suspension system 501 is always required to maintain a certain height of the body in any situation, such as when there is no cargo or driver or passenger, loading the cargo or when the driver or passenger boarded, There is a disadvantage in that the height of the body can not be adjusted as desired by the user.
- the vehicle body cannot be raised as desired on a rough road or an incline, so that it is not possible to cope with damage to the lower body of the vehicle more effectively, and the vehicle body cannot be lowered as desired during high-speed driving, so that the driving stability cannot be more stably obtained.
- the driving stability cannot be more stably obtained.
- it is difficult to provide better convenience because the body cannot be lowered when loading and unloading cargo and when getting on and off passengers.
- an electronically controlled air suspension system including an electronic control unit (ECU) for controlling the same has been developed and applied to some passenger vehicles and commercial vehicles.
- the electronic air suspension system is composed of expensive components such as an electronic height sensor, an ECU, and a solenoid valve, the price of the device is increased, and since the electronic air suspension system is made of electronic components, maintenance costs are high. There is a problem.
- the present invention is to solve the above problems, the object of the simple structure is to allow the user to adjust the height of the car body manually or automatically as needed so that the height of the ride height of the bus or the vehicle body is lowered during high-speed operation of the vehicle
- the driving stability is improved by driving the vehicle in a rough road or on a slope, and the driving stability can be improved. It is an object to provide a device.
- the vehicle body and the suspension arm to configure the vehicle height multi-adjustment device of the pneumatic suspension system having an air spring for adjusting the vehicle height by the inlet and discharge of the compressed air, the compression by the forward and reverse rotation A mechanical leveling valve for regulating the inflow and outflow of air;
- a valve driver for rotating the mechanical leveling valve in an inflow and outflow direction of the compressed air
- the present invention is to change the mounting angle of the mechanical leveling valve made of a simple structure so that the user can adjust the height of the vehicle body manually or automatically as needed.
- a simple structure using the mounting angle of the leveling valve can adjust the height of the vehicle body as desired by the user, and the mechanical leveling valve to have the same function as the electronic leveling valve, the price of the device is low.
- 1 to 3 is a side view showing the operation of the conventional pneumatic suspension system
- FIG. 4 to 6 is a side view showing the vehicle height multi-adjustment device and its operation of the pneumatic suspension system according to the first embodiment of the present invention
- FIG. 7 to 10 are views showing various examples of the valve driver according to the first embodiment of the present invention.
- 11 to 13 is a side view showing the vehicle height multi-adjustment device and its operation of the pneumatic suspension system according to a second embodiment of the present invention
- FIG. 14 to 16 are views showing various examples of the valve driver according to the second embodiment of the present invention.
- 17 to 19 is a side view showing the vehicle height multi-adjustment device and its operation of the pneumatic suspension system according to a third embodiment of the present invention.
- 20 to 22 are views showing various examples of the valve driver according to the third embodiment of the present invention.
- valve body 50 valve operation means
- valve actuator 71 controller
- Reverse motor 102 Mounting bracket
- the present invention is provided between the vehicle body and the suspension arm, the body height multi-adjustment apparatus of the pneumatic suspension system having an air spring to adjust the height of the vehicle body by the inlet and outlet of the compressed air, the forward and reverse rotation of the compressed air
- a mechanical leveling valve for interrupting inflow and outflow
- a valve driver for rotating the mechanical leveling valve in an inflow and outflow direction of the compressed air
- It is achieved by the vehicle height multi-adjustment device of the pneumatic suspension system, characterized in that it comprises a controller for controlling the drive of the valve driver.
- the leveling valve is a valve body for controlling the inflow and discharge of the compressed air by the forward and reverse rotation, a mounting bracket which supports the valve body and is installed in the forward and reverse rotation by the valve actuator, and one end of the central axis of rotation of the valve body It is preferable to have a rotation handle connected to the upper end of the linkage which is connected to the other end of the linkage and the other end is rotatably connected to the suspension arm.
- valve driver is a forward and reverse motor for forward and reverse rotation of the mounting bracket.
- valve driver preferably has a driven gear coupled to the mounting bracket, a rack for forward and reverse rotation of the driven gear by reciprocating driving, and a bidirectional cylinder for reciprocating driving the rack.
- the mounting bracket is installed to be able to return to the original position elastically; It is more effective that the valve actuator is a pair of unidirectional cylinders or actuators for pressing the mounting brackets in the forward and reverse directions on both sides of the mounting brackets.
- the controller has a user mode selector having a rising mode and a lowering mode for selecting a normal mode and a rising and falling state of the vehicle body height;
- the valve actuator preferably rotates the mounting bracket in the inlet or outlet direction of the compressed air of the valve body according to the mode selected by the controller.
- the above object is, according to another aspect of the present invention, is installed between the vehicle body and the suspension arm to the vehicle height multi-adjustment apparatus of the pneumatic suspension system having an air spring to adjust the height of the vehicle body by the inlet and outlet of the compressed air
- a mechanical leveling valve for controlling the inflow and discharge of the compressed air by moving left and right
- a valve driver for moving the mechanical leveling valve left and right in the inflow and outflow directions of the compressed air
- It is achieved by the vehicle height multi-adjustment device of the pneumatic suspension system characterized in that it comprises a controller for controlling the drive of the valve driver.
- the mechanical leveling valve is a valve body for regulating the inflow and discharge of compressed air by forward and reverse rotation, a mounting bracket for supporting the valve body and moving left and right by a valve driver, and one end of the rotation center of the valve body. It is preferable to have a rotation handle connected to the top of the linkage which is connected to the shaft and the other end of which is rotatably connected to the suspension arm.
- valve driver is effective to have a rack coupled to the mounting bracket in the horizontal direction, a pinion for forward and reverse rotation engaged with the rack, and a forward and reverse motor for forward and reverse rotation of the pinion.
- valve driver is more preferably a bidirectional cylinder for moving the mounting bracket in left and right directions.
- the mounting bracket is installed to be able to move back to the elastically; It is more effective that the valve actuator is a pair of unidirectional cylinders or actuators which press the mounting brackets in the left and right directions on both sides of the mounting brackets.
- the controller has a user mode selector having a rising mode and a lowering mode for selecting a normal mode and a rising and falling state of the vehicle body height;
- the valve driver preferably moves the mounting bracket left and right in the inlet or outlet air pressure of the valve body according to the mode selected by the controller.
- the vehicle height multi-adjustment apparatus of the pneumatic suspension system having an air spring is installed between the vehicle body and the suspension arm to adjust the vehicle body height by the inlet and outlet of the compressed air
- a mechanical leveling valve for controlling the inflow and discharge of the compressed air by moving up and down
- a valve driver for moving the mechanical leveling valve up and down in the inflow and outflow directions of the compressed air
- the vehicle height multi-adjustment device of the pneumatic suspension system characterized in that it comprises a controller for controlling the drive of the valve driver.
- the leveling valve is a valve body for regulating the inflow and discharge of compressed air by forward and reverse rotation, a mounting bracket for supporting the valve body and moving up and down by a valve driver, and one end of the central axis of rotation of the valve body. It is preferable to have a rotation handle connected to the upper end of the linkage which is connected to the other end of the linkage and the other end is rotatably connected to the suspension arm.
- valve driver is effective to have a rack coupled to the mounting bracket in the vertical direction, a pinion for forward and reverse engagement with the rack, and a forward and reverse motor for forward and reverse rotation of the pinion.
- valve driver is more preferably a bidirectional cylinder for moving the mounting bracket in the upper, lower both directions.
- the mounting bracket is installed to be able to move back to the elastically; It is more effective that the valve actuator is a pair of unidirectional cylinders or actuators for pressing the mounting brackets in the up and down directions on both sides of the mounting brackets.
- the controller has a user mode selector having a rising mode and a lowering mode for selecting a normal mode and a rising and falling state of the vehicle body height;
- the valve actuator preferably moves the mounting bracket up and down in the compressed air inlet or outlet direction of the valve body according to the mode selected by the controller.
- FIG 4 to 6 are side views showing the vehicle height multi-adjustment device and its operation of the pneumatic suspension system according to the first embodiment of the present invention.
- the vehicle height multi-adjustment device 1 supports the vehicle body 10 and the axle 3 while the suspension arm 20 is installed to be accessible and spaced apart from the vehicle body 10.
- An air spring 30 interposed between the vehicle body 10 and the suspension arm 20 to maintain the height of the vehicle body, and compressed air delivered from an air tank (not shown) according to the load change of the vehicle body.
- the mechanical leveling valve 40 for adjusting the height of the vehicle body by supplying air to the outside or by discharging the compressed air from the air spring 30 to the outside, and the valve operating means 50 for rotating the mounting angle of the mechanical leveling valve 40. It includes.
- valve operation means 50 since the rest of the configuration except for the valve operation means 50 is almost the same as the conventional pneumatic suspension system 501, only the valve operation means 50 will be described below.
- the valve operation means 50 is installed in the vehicle body 10 and the valve driver 61 for rotating the mechanical leveling valve 40 directly clockwise or counterclockwise, and a controller for controlling the driving of the valve driver 61 ( 71).
- valve driver 61 as shown in Figure 7, by using a stationary motor 100 to adjust the mounting angle of the mechanical leveling valve 40, the valve body 41 of the mechanical leveling valve 40 ) Can be configured to rotate the mounting bracket 102 is supported clockwise or counterclockwise to the stationary motor (100).
- the stationary motor 100 may use a stationary motor 100 of various types, such as a stepping motor, a servo motor, a general electric motor, an air motor, and, as shown in FIG. 8, the stationary motor 100 and It is also possible to use a reduction gear integrated forward and reverse motor with the reduction gear 101 coupled thereto.
- a stationary motor 100 of various types such as a stepping motor, a servo motor, a general electric motor, an air motor, and, as shown in FIG. 8, the stationary motor 100 and It is also possible to use a reduction gear integrated forward and reverse motor with the reduction gear 101 coupled thereto.
- valve driver 61 may rotate the mounting angle of the mechanical leveling valve 40 clockwise or counterclockwise by using the bidirectional air cylinder 103.
- valve actuator 61 is a mounting bracket in which the valve body 41 of the mechanical leveling valve 40 is supported to rotate in engagement with the rack 104 and the rack 104 coupled thereto, the rack 104 coupled thereto. It consists of the driven gear 105 provided in the 102.
- the valve driver 61 converts the reciprocating motion of the rack 104 by the driving of the bidirectional air cylinder 103 into the rotational motion of the driven gear 105 to change the mounting angle of the mechanical leveling valve 40 clockwise or half. Rotate clockwise.
- the bidirectional air cylinder 103 may be provided as a bidirectional cylinder of various forms such as a bidirectional hydraulic cylinder.
- valve driver 61 may rotate the mounting angle of the mechanical leveling valve 40 clockwise or counterclockwise by using a unidirectional air cylinder or an electric actuator 107.
- the mounting bracket is elastically installed to return to the home position, and the valve actuator 61 is such that two unidirectional air cylinders or two electric actuators 107 press both sides of the mounting bracket 102 of the mechanical leveling valve. It is preferable to rotate the mounting bracket 102 clockwise or counterclockwise.
- the vehicle height multi-adjustment device 1 is determined by the mechanical leveling valve 40 is operated in three states of the neutral state, intake state and exhaust state in accordance with the load change of the vehicle during normal vehicle operation In order to maintain the height of the general mode, or the user, such as a driver or a worker to adjust the height of the vehicle body as desired by selecting the user mode to rotate the adjustment angle of the mechanical leveling valve 40 to adjust the vehicle height.
- the controller 71 is provided with a general mode selector 73 and a user mode selector 75, and the user mode selector 75 allows the user to select a rising and lowering state of the vehicle height. And the lowering mode 75b.
- These selectors may be provided by various operation means such as a button type or a dial type.
- the body height adjustment process by the body height multiple adjustment device 1 according to the present embodiment having such a configuration will be described.
- the general mode is the same as the operation of the conventional pneumatic suspension system 501, the description thereof will be omitted, and the operation of the vehicle height multiple adjustment device 1 for the user mode will be described.
- the driving stability may be increased, and the height of the vehicle body 10 may be lowered as shown in FIG. 5 to provide convenience when loading or getting off the cargo and getting on and off the occupant.
- This consists of a user, such as a driver, selecting the lowering mode 75b in the user mode selector 75 of the controller 71.
- the valve driver 61 rotates the valve body 41 counterclockwise as shown in the enlarged view a of FIG. 5. Then, the valve body 41 is opened in the discharge direction of the compressed air, the air is discharged through the valve body 41 from the air spring 30 to contract the air spring 30. As a result, the height of the vehicle body 10 is lowered.
- the driving stability is improved by driving in a state where the vehicle body 10 is lowered at the time of high speed driving of the vehicle, and the convenience of loading or getting off the cargo and getting on and off the occupant is increased.
- the height of the vehicle body 10 can be raised as shown in FIG. 6 for the protection of the lower portion of the vehicle body.
- This consists of a user, such as a driver, selecting the rising mode 75a in the user mode selecting section 75 of the controller 71.
- the valve driver 61 rotates the valve body 41 clockwise as shown in the enlarged view a of FIG. Then, the valve body 41 is opened in the supply direction of the compressed air and compressed air delivered from the air tank is supplied to the air spring 30 through the valve body 41. As a result, the air spring 30 expands to increase the height of the vehicle body 10.
- the valve body 41 rotated by pulling down the rotation handle 51 to which the linkage 53 is connected.
- the height of the vehicle body 10 is made by making the desired state by making it into a neutral state that cuts off both supply and discharge of compressed air.
- Figures 11 to 13 is a side view showing the vehicle height multi-adjustment apparatus and its operation according to the second embodiment of the present invention.
- the body height multi-adjustment device 1 ' approaches the vehicle body 10 while supporting the vehicle body 10 and the axle 3 as in the first embodiment described above.
- a suspension arm 20 spaced apart from each other, an air spring 30 interposed between the vehicle body 10 and the suspension arm 20 to maintain the height of the vehicle body, and an air tank not shown according to a load change of the vehicle body.
- It has a mechanical leveling valve 40 for adjusting the height of the vehicle body by supplying the compressed air delivered from the air spring (30) or discharge the compressed air from the air spring (30) to the outside;
- a valve operation means 50 for moving the mounting position of the mechanical leveling valve 40 to the left and right.
- valve driver 81 of the valve operating means 50 since the rest of the configuration except for the valve driver 81 of the valve operating means 50 is almost the same as in the above-described first embodiment, only the valve driver 81 will be described below.
- the valve driver 81 of the vehicle body height multi-adjustment device 1 ' is provided in the vehicle body 10 to move the mechanical leveling valve 40 in the left and right directions.
- the valve driver 81 moves the mounting position of the mechanical leveling valve 40 to the left and right by using the rack 201, the pinion 203 and the stationary motor 200.
- the rack 201 is horizontally coupled to the mounting bracket 102 for supporting the valve body 41 of the mechanical leveling valve 40, the pinion 203 and the pinion (engaged with the rack 201)
- a forward and reverse motor 200 for rotating 203 clockwise and counterclockwise is provided in the region adjacent to the rack 201.
- the stationary motor 200 may use a stationary motor of various types, such as a stepping motor, a servo motor, a general electric motor, and an air motor.
- the stationary motor 200 is provided as a reduction gear integrated stationary motor in which the reduction gear is coupled, and the gearing gear of the stationary motor rotates the pinion 203 clockwise or counterclockwise to couple the rack 201 to the leveling valve. Can be moved left or right.
- valve driver 81 is provided such that the bidirectional air cylinder 213 moves the mounting bracket 102 supporting the valve body 41 of the leveling valve 40 to the left and right as shown in FIG. 15. Can be.
- the mounting bracket 102 for supporting the valve body 41 is installed so as to be able to elastically return to the left and right home position
- the valve actuator 81 is a unidirectional air cylinder or electric actuator 215 ) May be provided as a pair so that the mounting bracket 102 of the mechanical leveling valve may be pressed and moved in the left and right directions. It looks at the operation of the vehicle height multi-adjustment device (1 ') according to this embodiment having such a configuration.
- the height of the vehicle body can be lowered as shown in FIG. 12 to increase driving stability and provide convenience when loading or getting off the cargo and getting on and off the occupant.
- This consists of a user, such as a driver, selecting the lowering mode 75b in the user mode selector 75 of the controller 71.
- the air is discharged from the air spring 30 through the valve body 41 to reduce the height of the vehicle body as the air spring 30 contracts.
- the driving stability is improved by driving in a state in which the vehicle body is lowered at the time of high speed driving of the vehicle, and the convenience of loading or getting off the cargo and getting on and off the passenger is increased.
- the height of the vehicle body can be raised as shown in FIG. 13 for protection of the lower portion of the vehicle body.
- This consists of a user, such as a driver, selecting the ascending mode 75a in the user mode selection unit 75 of the controller 71.
- the valve driver 81 moves the valve body 41 to the right as shown in the enlarged view a of FIG. Then, the rotation handle 551 is rotated in the supply direction of the compressed air to open the valve body 41 in the air supply direction, and thus the compressed air delivered from the air tank through the valve body 41 through the air spring 30 Is supplied. As a result, the height of the vehicle body increases as the air spring 30 expands.
- the linkage 53 pulls the rotation handle 51 downward so as to be in a horizontal state with the valve body 41. It makes a desired body height by making neutral state which cuts off supply and discharge of compressed air.
- Figure 17 to 19 is a side view showing the vehicle height multi-adjustment apparatus and its operation according to the third embodiment of the present invention.
- the vehicle height multi-adjustment apparatus 1 approaches the vehicle body 10 while supporting the vehicle body 10 and the axle 3 as in the first embodiment described above.
- a suspension spring 20 spaced apart from each other, an air spring 30 interposed between the vehicle body 10 and the suspension arm 20 to maintain the height of the vehicle body 10, and a change in the load of the vehicle body 10. Therefore, it has a mechanical leveling valve 40 for adjusting the height of the vehicle body 10 by supplying the compressed air delivered from the air tank (not shown) to the air spring 30 or to discharge the compressed air from the air spring 30 to the outside
- valve driver 91 of the valve operating means 50 since the rest of the configuration except for the valve driver 91 of the valve operating means 50 is almost the same as in the above-described second embodiment, only the valve driver 91 will be described below.
- the valve actuator 91 of the vehicle height multi-adjustment device 1 "according to the present embodiment is provided in the vehicle body 10 to move the mechanical leveling valve 40 in the up and down directions.
- the valve driver 91 moves the mounting position of the mechanical leveling valve 40 up and down using a rack, pinion and a forward and reverse motor.
- the rack is coupled to the mounting bracket 102 supporting the valve body 40 of the mechanical leveling valve 40 in the vertical direction, the pinion 303 and the pinion 303 meshing with the rack 301.
- a forward and reverse motor 300 that rotates clockwise and counterclockwise is installed in the region adjacent to the rack 301.
- the stationary motor 300 may use a stationary motor of various types, such as a stepping motor, a servo motor, a general electric motor, and an air motor.
- the stationary motor is provided as a reduction gear-integrated stationary motor with a reduction gear, and the gearing gear of the stationary motor rotates the pinion clockwise or counterclockwise to raise the mechanical leveling valve 40 coupled with the rack 111. You can move it down.
- valve driver 91 moves the mounting bracket 102 that supports the valve body 41 of the mechanical leveling valve 40 up and down, as shown in FIG. 21. Can be prepared.
- valve driver 91 is provided with a mounting bracket 102 supporting the valve body 41 so as to be able to move back and forth in an elastic manner, and the valve driver 91 is unidirectional air.
- a pair of cylinders or electric actuators 313 may be provided to move the mounting brackets 102 of the mechanical leveling valve 40 by pressing them upward and downward.
- the height of the vehicle body can be lowered as shown in FIG. 18 to increase driving stability and to provide convenience for loading and unloading cargo and getting on and off the occupant.
- This consists of a user, such as a driver, selecting the lowering mode 75b in the user mode selector 75 of the controller 71.
- the air is discharged from the air spring 30 through the valve body 41 to reduce the height of the vehicle body as the air spring 30 contracts.
- the linkage 53 lifts the rotation handle 51 upward so that the valve body 41 is in a horizontal state. By doing so, it makes the desired body height by making neutral state which cuts off both supply and discharge of compressed air.
- the driving stability is improved by driving in a state in which the vehicle body is lowered at the time of high speed driving of the vehicle, and the convenience of loading or getting off the cargo and getting on and off the passenger is increased.
- the height of the vehicle body can be raised as shown in FIG. 19 for the protection of the lower portion of the vehicle body.
- This consists of a user, such as a driver, selecting the ascending mode 75a in the user mode selection unit 75 of the controller 71.
- valve driver 91 moves the valve body 41 downward as shown in the enlarged view a of FIG. 19, and the rotation handle 551.
- the valve body 41 is opened in the supply direction by rotating in the supply direction of the compressed air.
- the compressed air delivered from the air tank is supplied to the air spring 30 through the valve body 41, and the air spring 30 expands to increase the height of the vehicle body.
- the linkage 53 pulls the rotation handle 51 downward so as to be in a horizontal state with the valve body 41. By doing so, it makes a desired body height by making neutral state which cuts off both supply and discharge of compressed air.
- the multi-body height adjusting device of the pneumatic suspension system arbitrarily manipulates the valve body mounting angle and the mounting position of the mechanical leveling valve to raise and lower the vehicle body to a desired height, thereby driving the vehicle body on a rough road or a slope. Damage to the lower part can be prevented and better driving stability can be secured at high speeds.
- the price of the device can be significantly reduced.
- the present invention adjusts the mounting angle of the mechanical leveling valve so as to increase the vehicle body at the height of the bus or at the ramp while the vehicle body is lowered at the high speed of the bus at high speeds, driving stability is improved, and the load stability is improved.
- the height of the pneumatic suspension system can be adjusted easily and easily at low prices regardless of the type of vehicles, such as cars, vans, shuttle buses, and vehicles for the disabled, by adjusting convenience when getting on and off. To provide a device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims (6)
- 차체와 서스펜션아암 사이에 설치되어 압축공기의 유입 및 배출에 의해 차체 높이를 조절하는 에어스프링을 구비한 공기식 현가시스템의 차체높이 다중 조절장치에 있어서,정역회동에 의해 장착각도를 조절하여 상기 압축공기의 유입 및 배출을 단속하는 기계식 레벨링밸브와;상기 기계식 레벨링밸브를 상기 압축공기의 유입 및 배출방향으로 회동시키는 밸브구동기와;상기 밸브구동기의 구동을 제어하는 제어기를 포함하는 것을 특징으로 하는 공기식 현가시스템의 차체높이 다중 조절장치.
- 제1항에 있어서,상기 기계식 레벨링밸브는회동핸들의 정역회동에 의해 압축공기의 유입 및 배출을 단속하는 밸브본체와,상기 밸브본체를 지지하며 밸브구동기에 의해 정역 회동 가능하게 설치된 장착브라켓과,일단부가 상기 밸브본체의 회동 중심축과 연결되고 타단부가 서스펜션아암에 회동 가능하게 연결된 링키지의 상단에 연결된 회동로드를 갖는 것을 특징으로 하는 공기식 현가시스템의 차체높이 다중 조절장치.
- 제2항에 있어서,상기 밸브구동기는 장착브라켓을 정역 회동시키는 정역모터인 것을 특징으로 하는 공기식 현가시스템의 차체높이 다중 조절장치.
- 제2항에 있어서,상기 밸브구동기는장착브라켓에 결합되는 피동기어와,왕복 구동에 의해 상기 피동기어를 정역 회동시키는 래크와,상기 래크를 왕복 구동시키는 양방방향 실린더를 갖는 것을 특징으로 하는 공기식 현가시스템의 차체높이 다중 조절장치.
- 제2항에 있어서,상기 장착브라켓은 탄성적으로 원위치 복귀 회동 가능하게 설치되며;상기 밸브구동기는 상기 장착브라켓의 양측에서 상기 장착브라켓을 정방향과 역방향으로 가압하는 한 쌍의 단방향 실린더 또는 액츄에이터인 것을 특징으로 하는 공기식 현가시스템의 차체높이 다중 조절장치.
- 제2항에 있어서,상기 제어기는 일반모드와 차체 높이의 상승과 하강 상태를 선택할 수 있는 상승모드와 하강모드를 갖는 사용자모드 선택부를 가지며;상기 밸브구동기는 상기 제어기에서 선택된 모드에 따라서 장착브라켓을 밸브본체의 압축공기 유입 또는 배출 방향으로 회동시키는 것을 특징으로 하는 공기식 현가시스템의 차체높이 다중 조절장치.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/391,800 US20120146307A1 (en) | 2009-08-25 | 2010-08-24 | Multiple ride height control apparatus for air suspension |
JP2012526636A JP2013503075A (ja) | 2009-08-25 | 2010-08-24 | 空気式懸架システムの車高多重調節装置 |
CA2782475A CA2782475A1 (en) | 2009-08-25 | 2010-08-24 | Vehicle body height multi-control apparatus for an air suspension system |
EP10812239.1A EP2471675A4 (en) | 2009-08-25 | 2010-08-24 | DEVICE FOR MULTIPLE ADJUSTMENT OF THE BODY HEIGHT OF A VEHICLE FOR PNEUMATIC SUSPENSION |
CN2010800378335A CN102470720A (zh) | 2009-08-25 | 2010-08-24 | 空气悬架系统的车身高度多重调节装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090078942A KR100973332B1 (ko) | 2009-08-25 | 2009-08-25 | 공기식 현가시스템의 차체높이 다중 조절장치 |
KR10-2009-0078942 | 2009-08-25 |
Publications (2)
Publication Number | Publication Date |
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WO2011025225A2 true WO2011025225A2 (ko) | 2011-03-03 |
WO2011025225A3 WO2011025225A3 (ko) | 2011-07-14 |
Family
ID=42646203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2010/005643 WO2011025225A2 (ko) | 2009-08-25 | 2010-08-24 | 공기식 현가시스템의 차체높이 다중 조절장치 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120146307A1 (ko) |
EP (1) | EP2471675A4 (ko) |
JP (1) | JP2013503075A (ko) |
KR (1) | KR100973332B1 (ko) |
CN (1) | CN102470720A (ko) |
CA (1) | CA2782475A1 (ko) |
WO (1) | WO2011025225A2 (ko) |
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US8731781B2 (en) * | 2012-03-06 | 2014-05-20 | Michael Prentice | Dynamically-supported movable downforce-generating underbody in a motor vehicle |
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CN103343796B (zh) * | 2013-06-28 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | 一种用于便携式设备的动力系统及实现方法 |
CN104859398B (zh) * | 2014-02-21 | 2017-05-24 | 陕西重型汽车有限公司 | 汽车空气悬架高度调整机构 |
JP6137013B2 (ja) * | 2014-03-26 | 2017-05-31 | トヨタ自動車株式会社 | 車高検出装置 |
CN105021384B (zh) * | 2015-06-18 | 2018-06-08 | 广西大学 | 一种二系悬挂空气弹簧系统故障的在线诊断方法和装置 |
CN105196825B (zh) * | 2015-09-29 | 2017-05-17 | 东风商用车有限公司 | 一种汽车机械式空气悬架高度控制系统 |
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- 2010-08-24 WO PCT/KR2010/005643 patent/WO2011025225A2/ko active Application Filing
- 2010-08-24 JP JP2012526636A patent/JP2013503075A/ja active Pending
- 2010-08-24 CN CN2010800378335A patent/CN102470720A/zh active Pending
- 2010-08-24 EP EP10812239.1A patent/EP2471675A4/en not_active Withdrawn
- 2010-08-24 CA CA2782475A patent/CA2782475A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
US20120146307A1 (en) | 2012-06-14 |
JP2013503075A (ja) | 2013-01-31 |
CN102470720A (zh) | 2012-05-23 |
KR100973332B1 (ko) | 2010-07-30 |
EP2471675A2 (en) | 2012-07-04 |
EP2471675A4 (en) | 2013-07-31 |
CA2782475A1 (en) | 2011-03-03 |
WO2011025225A3 (ko) | 2011-07-14 |
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