CN114148139A - Drive axle liftable air suspension control system - Google Patents
Drive axle liftable air suspension control system Download PDFInfo
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- CN114148139A CN114148139A CN202111323383.2A CN202111323383A CN114148139A CN 114148139 A CN114148139 A CN 114148139A CN 202111323383 A CN202111323383 A CN 202111323383A CN 114148139 A CN114148139 A CN 114148139A
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- air bag
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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
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0526—Distributor units, e.g. for retractable wheels
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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
- B60G17/005—Suspension locking arrangements
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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
- B60G17/015—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
- B60G17/0195—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 regulation being combined with other vehicle control 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
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a control system of a liftable air suspension of a drive axle, which comprises a lifting control module, an axle difference control module and a power transmission control module, wherein the axle difference control module comprises a lifting control module and a power transmission control module; the lifting control module is used for controlling the air bag electromagnetic valve to select different air bags through the controller so as to realize the bearing and lifting of the drive axle; the shaft difference control module is used for inflating the shaft difference locking cylinder through the electromagnetic valve to realize locking of the shaft difference lock; the power transmission control module is used for realizing the conversion between a double-drive bridge and a single-drive bridge by controlling a power locking cylinder; and the shaft difference control module and the power transmission control module jointly enable the shaft difference cylinder to be inflated and deflated through a two-way one-way valve so as to realize matching of a shaft difference lock and a driving mode. The axle differential lock can be unlocked or locked during normal double-axle driving, is suitable for muddy and slippery road conditions, and is carried by air suspension; shaft difference locking is realized under the working condition of single-axle driving, and no-load oil saving is realized; and the double-drive and single-drive conversion can be realized by one key under the static or even low-speed running state of the vehicle, so that the transmission efficiency of the whole vehicle is improved.
Description
Technical Field
The invention belongs to the technical field of lifting control of double drive axles of commercial vehicles, and particularly relates to a control system for a liftable air suspension of a drive axle.
Background
The air suspension works on the principle that high-pressure air is filled into a closed air bag, a height sensor is arranged near a wheel, a controller judges the height of a vehicle according to signals of the height sensor, and the height of the vehicle is changed by adjusting the inflation and deflation of an electromagnetic valve. The air suspension can play the shock attenuation effect, realizes whole car lightweight, realizes altitude mixture control through the controller simultaneously, improves vehicle stability, economic nature, trafficability characteristic.
At present, common driving forms of commercial vehicles are single-axle driving and double-axle driving. Most commercial vehicles are full in outward journey and no in return journey; or the main locomotive returns only after throwing and hanging transportation. Under the working condition of full load, the driving force of the single drive axle is insufficient, and under the working condition of no load, the driving force of the double drive axle is surplus, so that the fuel consumption is large, and the transportation cost is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides a control system of a drive axle lifting air suspension, which can lift a rear axle by one key in a static or even low-speed running state of a vehicle, improve the transmission of the whole vehicle, improve the fuel economy, and has simple operation and reliable function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a drive axle liftable air suspension control system comprises a lifting control module, an axle difference control module and a power transmission control module;
the lifting control module is used for controlling the air bag electromagnetic valve to select different air bags through the controller so as to realize the bearing and lifting of the drive axle; the shaft difference control module is used for inflating the shaft difference locking cylinder through a shaft difference switch to realize locking of the shaft difference lock; the power transmission control module is used for realizing conversion between a double-drive bridge and a single-drive bridge by controlling a power locking cylinder; and the shaft difference control module and the power transmission control module jointly enable the shaft difference cylinder to be inflated and deflated through a two-way one-way valve so as to realize matching of a shaft difference lock and a driving mode.
Further, the lifting control module comprises a controller 1, a first air bag solenoid valve 2, a second air bag solenoid valve 3, a first bearing air bag 15, a second bearing air bag 11, a lifting air bag 12 and an air source 13;
the controller 1 is respectively connected with the control end of the first air bag electromagnetic valve 2 and the control end of the second air bag electromagnetic valve 3 through wiring harnesses; the left air airbag output port of the first airbag electromagnetic valve 2 is connected to the lifting airbag 12, the right air airbag output port is connected to the first bearing airbag 15, and the air source inlet of the first airbag electromagnetic valve 2 is connected to the first output port of the air source 13; the left air airbag output port and the right air airbag output port of the second airbag electromagnetic valve 3 are both connected to the second bearing airbag 11; the air source inlet of the second air bag electromagnetic valve 3 is connected to the second output port of the air source 13.
Further, the shaft difference control module comprises a shaft difference switch 6, a shaft difference electromagnetic valve 4 and a shaft difference locking cylinder 9;
the shaft difference switch 6 is connected with the control end of the shaft difference electromagnetic valve 4; an air outlet of the shaft difference electromagnetic valve 4 is connected to a second air inlet of the two-way one-way valve 10; and the control end of the two-way check valve 10 is connected with the shaft difference locking cylinder 9; and the air source input interface of the shaft difference electromagnetic valve 4 is also connected with a third output port of an air source 13.
Further, the power transmission control module comprises a two-way check valve 10 and a power lock cylinder 8;
a first air inlet of the two-way check valve 10 is connected to the power lock cylinder 8;
and the left air bag output port of the first air bag electromagnetic valve 2 is connected to a second air inlet of a two-way check valve 10 and a power lock cylinder 8.
Further, the working process of the control system comprises:
when the double-axle driving working condition is adopted, the power lock cylinder 8 is not ventilated, the axle difference lock cylinder 9 is not ventilated, the controller 1 controls the first bearing air bag 11 and the second bearing air bag 15 to be ventilated, the lifting air bag 12 is not ventilated, the double-axle driving is adopted, and the axle difference lock is not locked;
further, the working process of the control system further comprises:
when the double-axle driving working condition is adopted, the power lock cylinder 8 is not ventilated, the shaft difference lock cylinder 9 is ventilated, the controller 1 controls the first bearing air bag 11 and the second bearing air bag 15 to be ventilated, the lifting air bag 12 is not ventilated, the double-axle driving is adopted, the shaft difference switch 6 is opened, and the shaft difference lock is locked.
Further, the working process of the control system further comprises:
when the single axle is driven, the controller 1 controls the power lock cylinder 8 to ventilate, and the shaft difference lock cylinder 9 to ventilate; the first and second load cells 11, 15 are not vented, the lift cell 12 is vented, single axle drive, differential shaft lock.
Further, the working process of the control system further comprises:
the controller 1 controls the inflation inlet of the first air bag electromagnetic valve 2 to be opened and the inflation inlet of the second air bag electromagnetic valve 3 to be opened, so that the air of the air source 13 is inflated into the first bearing air bag 11 and the second bearing air bag 15, and air suspension bearing under the double-drive working condition is realized.
Further, the working process of the control system further comprises:
and opening the shaft difference switch 6, and controlling the gas source input interface of the shaft difference electromagnetic valve 4 to be opened by the controller 1, so that gas of a gas source 13 enters the shaft difference locking cylinder 9 through the two-way check valve 10, and the shaft difference lock locking under the double-drive working condition is realized.
Further, the working process of the control system further comprises:
and (3) opening a lifting switch 7, controlling the first air bag electromagnetic valve 2 to exhaust air of the first bearing air bag 15 by the controller 1, inflating a lifting air bag 12, and meanwhile, ventilating a power locking cylinder 8, ventilating a shaft difference locking cylinder 9, lifting a rear axle and changing a double-drive axle into a single-drive axle.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
the invention provides a control system of a liftable air suspension of a drive axle, which comprises a lifting control module, an axle difference control module and a power transmission control module, wherein the axle difference control module comprises a lifting control module and a power transmission control module; the lifting control module is used for controlling the air bag electromagnetic valve to select different air bags through the controller so as to realize the bearing and lifting of the drive axle; the shaft difference control module is used for inflating the shaft difference locking cylinder through the controller to realize locking of the shaft difference lock; the power transmission control module is used for realizing the conversion between a double-drive bridge and a single-drive bridge by controlling a power locking cylinder; and the shaft difference control module and the power transmission control module jointly enable the shaft difference cylinder to be inflated and deflated through a two-way one-way valve so as to realize matching of a shaft difference lock and a driving mode. According to the air suspension control system with the liftable drive axle, a driver can lift the rear axle in a static or even low-speed running state without getting off the vehicle by one key, so that the transmission efficiency of the whole vehicle is improved, the fuel economy is improved, the tire wear is reduced, the operation is simple, the cost is low, the function is reliable, and the misoperation prevention performance is high.
The invention can realize the unlocking of the shaft difference lock under the working condition of double-axle driving, and can adapt to the slope road and the rough road. The shaft difference lock is locked, the rotating speeds of the double bridges are consistent, the double-axle double-drive suspension device can adapt to muddy and slippery road conditions, and air suspension bearing under the double-drive working condition is realized; the invention can realize shaft difference locking under the working condition of single-axle driving and can realize no-load oil saving.
Drawings
Fig. 1 is a schematic connection diagram of a suspension control system for a drive axle liftable air according to embodiment 1 of the present invention;
fig. 2 is a schematic view illustrating an installation of a suspension control system for a drive axle liftable air according to embodiment 1 of the present invention;
1-a controller; 2-a first air bag solenoid valve; 3-a second airbag electromagnetic valve; 4-shaft difference electromagnetic valve; 5-a wire harness; 6-axis difference switch; 7-a lifting switch; 8-power lock cylinder; 9-differential shaft locking cylinder; 10 two-way check valves; 11-a second load-bearing bladder; 12-lifting the airbag; 13-a gas source; 14-a tube bundle; 15 first load-bearing airbag.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
Example 1
The embodiment 1 of the invention provides a control system for a drive axle lifting air suspension, wherein the drive axle is a mechanism which is positioned at the tail end of a transmission system and can change the rotating speed and the torque from a transmission and transmit the rotating speed and the torque to a driving wheel.
Fig. 1 is a schematic diagram showing a connection of a control system of a liftable air suspension of a drive axle according to embodiment 1 of the present invention, and fig. 2 is a schematic diagram showing an installation of a control system of a liftable air suspension of a drive axle according to embodiment 1 of the present invention. The device comprises a lifting control module, a shaft difference control module and a power transmission control module;
the lifting control module is used for controlling the air bag electromagnetic valve to select different air bags through the controller so as to realize the bearing and lifting of the drive axle; the shaft difference control module is used for inflating the shaft difference locking cylinder through the controller to realize locking of the shaft difference lock; the power transmission control module is used for realizing the conversion between a double-drive bridge and a single-drive bridge by controlling a power locking cylinder; and the shaft difference control module and the power transmission control module jointly enable the shaft difference cylinder to be inflated and deflated through a two-way one-way valve so as to realize matching of a shaft difference lock and a driving mode.
The lifting control module comprises a controller 1, a first air bag electromagnetic valve 2, a second air bag electromagnetic valve 3, a first bearing air bag 15, a second bearing air bag 11, a lifting air bag 12 and an air source 13;
the controller 1 is respectively connected with the control end of the first air bag electromagnetic valve 2 and the control end of the second air bag electromagnetic valve 3 through wiring harnesses; a left air airbag output port 22 of the first air airbag electromagnetic valve 2 is connected to the lifting air bag 12 through a tube bundle, a right air airbag output port 23 is connected to the first bearing air bag 15 through a tube bundle, and an air source access port 11 of the first air airbag electromagnetic valve 2 is connected to a first output port of an air source 13 through a tube bundle; the left air airbag output port 22 and the right air airbag output port 23 of the second airbag electromagnetic valve 3 are both connected to the second bearing airbag 11 through tube bundles; and the air source inlet of the second air bag electromagnetic valve 3 is connected to a second outlet of an air source 13 through a tube bundle.
The shaft difference control module comprises a shaft difference switch 6, a shaft difference electromagnetic valve 4 and a shaft difference locking cylinder 9; the shaft difference switch 6 is connected with the control end of the shaft difference electromagnetic valve 4; an air outlet of the shaft difference electromagnetic valve 4 is connected to a second air inlet of the two-way one-way valve 10; and the control end of the two-way check valve 10 is connected with the shaft difference locking cylinder 9; the air source input interface of the shaft difference electromagnetic valve 4 is also connected with a third output port of an air source 13.
The power transmission control module comprises a two-way check valve 10 and a power lock cylinder 8; a first air inlet of the two-way check valve 10 is connected to the power lock cylinder 8; the left air bladder output port of the first bladder solenoid valve 2 is connected to the second air inlet of the two-way check valve 10 and the power lock cylinder 8.
Two ports of the two-way check valve are respectively connected with two loop ports, the other port is connected with a port of the braking device, and by utilizing the pressure difference principle, no matter air is admitted from any port of the loop, a piston in the valve pushes one end with low air pressure and closes the end, and compressed air flows into a piston cylinder to generate a thrust effect.
The application provides a transaxle can promote air suspension control system's working process includes: the vehicle normally loads and travels, and when the double axle drive operating mode, power lock cylinder 8 is not ventilated, and the poor lock cylinder 9 of axle is not ventilated, and controller 1 control first bears gasbag 11 and second and bears gasbag 15 and ventilate, promotes gasbag 12 and does not ventilate, and the double axle drive, the poor locking of lock of axle, the double axle rotational speed can be different, can adapt to slope road conditions, undulate road conditions.
The vehicle normally loads and travels, and when the double axle drive operating mode, power lock cylinder 8 does not ventilate, and the poor lock cylinder 9 of axle ventilates, and controller 1 control is first to bear gasbag 11 and the second bears gasbag 15 and ventilates, promotes gasbag 12 and does not ventilate, and the double axle drive, the poor locking of axle, the double axle rotational speed is unanimous, can adapt to muddy, the road conditions of skidding.
When the single axle is driven, the controller 1 controls the power lock cylinder 8 to ventilate, and the shaft difference lock cylinder 9 to ventilate; the first bearing air bag 11 and the second bearing air bag 15 are not ventilated, the lifting air bag 12 is ventilated, single-axle driving is realized, axle difference locking is realized, and no-load oil saving can be realized.
The controller 1 controls the inflation inlet of the first air bag electromagnetic valve 2 to be opened and the inflation inlet of the second air bag electromagnetic valve 3 to be opened, so that the air of the air source 13 is inflated into the first bearing air bag 11 and the second bearing air bag 15, and air suspension bearing under the double-drive working condition is realized.
The working process of the drive axle liftable air suspension control system provided by the invention further comprises the following steps:
when the vehicle is in no-load, the shaft difference switch 6 is opened, the air source input interface of the shaft difference electromagnetic valve 4 is controlled to be blocked, so that air of an air source 13 enters the shaft difference locking cylinder 9 through the two-way check valve 10, and shaft difference locking under the double-drive working condition is realized.
The lifting switch 7 is turned on, the controller 1 controls the first air bag electromagnetic valve 2 to exhaust air of the first bearing air bag 15, the lifting air bag 12 is inflated, meanwhile, the power locking cylinder 8 is inflated, the shaft difference locking cylinder 9 is inflated, the rear axle is lifted, the double-drive axle is changed into the single-drive axle, and no-load oil saving is achieved. In the invention, the shaft difference locking cylinder 9 is charged and discharged through the two-way one-way valve 10, the same switch control under the working conditions of double drive and single drive is realized, and the shaft difference function superposition is prevented.
According to the air suspension control system with the liftable drive axle, a driver can lift the rear axle in a static or even low-speed running state without getting off the vehicle by one key, so that the transmission efficiency of the whole vehicle is improved, the fuel economy is improved, the tire wear is reduced, the operation is simple, the cost is low, the function is reliable, and the misoperation prevention performance is high.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include elements inherent in the list. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the scope of the present invention is not limited thereto. Various modifications and alterations will occur to those skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. On the basis of the technical scheme of the invention, various modifications or changes which can be made by a person skilled in the art without creative efforts are still within the protection scope of the invention.
Claims (10)
1. A drive axle liftable air suspension control system is characterized by comprising a lifting control module, an axle difference control module and a power transmission control module;
the lifting control module is used for controlling the air bag electromagnetic valve to select different air bags through the controller so as to realize the bearing and lifting of the drive axle; the shaft difference control module is used for inflating the shaft difference locking cylinder through a shaft difference switch to realize locking of the shaft difference lock; the power transmission control module is used for realizing conversion between a double-drive bridge and a single-drive bridge by controlling a power locking cylinder; and the shaft difference control module and the power transmission control module jointly enable the shaft difference cylinder to be inflated and deflated through a two-way one-way valve so as to realize matching of a shaft difference lock and a driving mode.
2. A transaxle liftable air suspension control system according to claim 1, wherein the lifting control module comprises a controller (1), a first air bag solenoid valve (2), a second air bag solenoid valve (3), a first load air bag (15), a second load air bag (11), a lifting air bag (12), and an air source (13);
the controller (1) is respectively connected with the control end of the first air bag electromagnetic valve (2) and the control end of the second air bag electromagnetic valve (3) through wiring harnesses; the left air airbag output port of the first air airbag electromagnetic valve (2) is connected to the lifting air bag (12), the right air airbag output port is connected to the first bearing air bag (15), and the air source access port of the first air airbag electromagnetic valve (2) is connected to the first output port of the air source (13); the left air airbag output port and the right air airbag output port of the second airbag electromagnetic valve (3) are both connected to the second bearing airbag (11); the air source inlet of the second air bag electromagnetic valve (3) is connected to the second output port of the air source (13).
3. A transaxle liftable air suspension control system according to claim 2, wherein the axle difference control module comprises an axle difference switch (6), an axle difference solenoid valve (4), and an axle difference lock cylinder (9);
the shaft difference switch (6) is connected with the control end of the shaft difference electromagnetic valve (4); an air outlet of the shaft difference electromagnetic valve (4) is connected to a second air inlet of the two-way one-way valve (10); the control end of the two-way check valve (10) is connected with the shaft difference locking cylinder (9); and the air source input interface of the shaft difference electromagnetic valve (4) is also connected with a third output port of the air source (13).
4. A transaxle liftable air suspension control system according to claim 3, wherein the power transmission control module comprises a two-way check valve (10) and a power lock cylinder (8);
a first air inlet of the two-way check valve (10) is connected to the power lock cylinder (8);
and the left air bag output port of the first air bag electromagnetic valve (2) is connected to a second air inlet of the two-way check valve (10) and the power lock cylinder (8).
5. The transaxle liftable air suspension control system of claim 4, wherein the control system operates by:
when the double-axle driving working condition is adopted, the power lock cylinder (8) is not ventilated, the axle difference lock cylinder (9) is not ventilated, the controller (1) controls the first bearing air bag (11) and the second bearing air bag (15) to be ventilated, the lifting air bag (12) is not ventilated, the double-axle driving is adopted, and the axle difference lock is not locked.
6. The transaxle liftable air suspension control system of claim 4, wherein the operation of the control system further comprises:
when the double-axle driving working condition is adopted, the power lock cylinder (8) is not ventilated, the axle difference lock cylinder (9) is ventilated, the controller (1) controls the first bearing air bag (11) and the second bearing air bag (15) to be ventilated, the lifting air bag (12) is not ventilated, the double-axle driving is adopted, the axle difference switch (6) is opened, and the axle difference lock is locked.
7. The transaxle liftable air suspension control system of claim 4, wherein the operation of the control system further comprises:
when the single axle is driven to work, the controller (1) controls the power lock cylinder (8) to ventilate, and the shaft difference lock cylinder (9) ventilates; the first bearing air bag (11) and the second bearing air bag (15) are not ventilated, the lifting air bag (12) is ventilated, the single axle is driven, and the axle difference is locked.
8. The transaxle liftable air suspension control system of claim 4, wherein the operation of the control system further comprises:
the controller (1) controls the inflation inlet of the first air bag electromagnetic valve (2) to be opened and the inflation inlet of the second air bag electromagnetic valve (3) to be opened, so that air of the air source (13) is inflated into the first bearing air bag (11) and the second bearing air bag (15), and air suspension bearing under the double-drive working condition is achieved.
9. The transaxle liftable air suspension control system of claim 4, wherein the operation of the control system further comprises:
and opening the shaft difference switch (6), controlling the air source input interface of the shaft difference electromagnetic valve (4) to be opened by the controller (1), and enabling air of an air source (13) to enter the shaft difference locking cylinder (9) through the two-way check valve (10) to realize shaft difference locking under the double-drive working condition.
10. The transaxle liftable air suspension control system of claim 4, wherein the operation of the control system further comprises:
and (3) a lifting switch (7) is turned on, the controller (1) controls the first air bag electromagnetic valve (2) to exhaust air of the first bearing air bag (15), the lifting air bag (12) is inflated, meanwhile, the power locking cylinder (8) is inflated, the shaft difference locking cylinder (9) is inflated, the rear axle is lifted, and the double-drive axle is changed into the single-drive axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111323383.2A CN114148139B (en) | 2021-11-09 | 2021-11-09 | Driving axle liftable air suspension control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111323383.2A CN114148139B (en) | 2021-11-09 | 2021-11-09 | Driving axle liftable air suspension control system |
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| Publication Number | Publication Date |
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| CN114148139A true CN114148139A (en) | 2022-03-08 |
| CN114148139B CN114148139B (en) | 2023-10-03 |
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| CN202111323383.2A Active CN114148139B (en) | 2021-11-09 | 2021-11-09 | Driving axle liftable air suspension control system |
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| CN114148139B (en) | 2023-10-03 |
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