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CN218430765U - Integrated electric control air suspension system - Google Patents

Integrated electric control air suspension system Download PDF

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Publication number
CN218430765U
CN218430765U CN202222508509.XU CN202222508509U CN218430765U CN 218430765 U CN218430765 U CN 218430765U CN 202222508509 U CN202222508509 U CN 202222508509U CN 218430765 U CN218430765 U CN 218430765U
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China
Prior art keywords
dabber
subassembly
valve
magnetic force
pendulum rod
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CN202222508509.XU
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Chinese (zh)
Inventor
欧鹏
朱晓
张传敏
李文辽
江涛
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Wenzhou Ruili Kormee Automotive Electronics Co ltd
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Wenzhou Ruili Kormee Automotive Electronics Co ltd
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Abstract

The utility model provides an automatically controlled air suspension system of integrated form, includes pair solenoid valve subassembly, sensor module and control module all set up on pair solenoid valve subassembly, set up the dabber subassembly on the pair solenoid valve subassembly, the dabber subassembly includes pendulum rod, dabber and magnetic force spare, the dabber has pendulum rod end and magnetic force end, set up the dabber connecting hole on the pair solenoid valve subassembly, the magnetic force end of dabber stretches into the dabber connecting hole and is connected with pair solenoid valve subassembly, the magnetic force spare sets up on the magnetic force end of dabber, the pendulum rod sets up on the pendulum rod end of dabber, the pendulum rod is connected with the pendulum rod end rotation, the signal of the angle change of pendulum rod among the sensor module response dabber subassembly is transmitted to control module, control module is according to signal control pair solenoid valve subassembly's break-make, and this design is integrated into the integral type structure with each subassembly, saves installation space and generation cost.

Description

Integrated electric control air suspension system
Technical Field
The utility model relates to an automotive suspension technical field, concretely relates to automatically controlled air suspension system of integrated form.
Background
At present, two types of traditional air suspensions and ECAS electronic control air spring suspensions exist in an air suspension system in the field of domestic commercial vehicles. The traditional air suspension adopts mechanical height valve control, and the air bag is adjusted to be inflated and deflated through the working control of the mechanical height valve, so that the stable running height can be kept when a vehicle runs. However, the mechanical air suspension is inflexible to control, has few functions, excessive adjustment times, high compressed air consumption, high failure rate of a mechanical control system and short service life, so that the air suspension is slow in popularization speed and difficult to meet the requirements of the modern high-efficiency intelligent transportation market. With the popularization of system application and the development of vehicle control technology, the ECAS electric control air suspension system gradually replaces the traditional mechanically controlled air suspension system. The ECAS electronically controlled air suspension system not only improves the comfort of operation and the sensitivity of response, but also adds a number of ancillary functions. The economy, the driving comfort and the reliability of the whole vehicle are greatly improved. At present, an ECAS (electronically controlled air suspension system) consists of an independent height sensor, an independent electromagnetic valve unit, an independent ECU (electronic control unit), an air bag and the like. The height sensor is responsible for detecting the height change of the vehicle, converting the height change into an electric signal which can be identified by the ECU, and transmitting the electric signal to the ECU control unit through a long wire harness; besides the height information, the ECU unit also receives other input information, such as brake information, door information, vehicle speed information, air supply pressure information and the like, then the ECU performs comprehensive operation processing on all the input information, judges the current vehicle state and excites the electromagnetic valve unit to work according to the internal control logic, and the electromagnetic valve realizes the charging and discharging air regulation of each air bag to realize that the compartment is always maintained at a set height. However, the ECAS electric control air suspension system has the obvious defects that the purchase or optional assembly cost is high, and the maintenance cost is also high. The existing mechanical air suspension has the problems of high failure rate, short service life and high consumption of compressed air; and simultaneously the problem of high cost of the ECAS air suspension.
Disclosure of Invention
In view of this, the utility model provides an automatically controlled air suspension system of integrated form.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an automatically controlled air suspension system of integrated form, includes upper cover and valve body subassembly, the upper cover sets up on the valve body subassembly, form the installation cavity between upper cover and the valve body subassembly, set up pair solenoid valve subassembly and sensor unit in the installation cavity, set up the dabber subassembly on the valve body subassembly, the one end of dabber subassembly is passed the valve body subassembly and is stretched into the installation cavity and be connected with the sensor unit, the dabber subassembly includes dabber and pendulum rod, the dabber has magnetic force link end and pendulum rod link end, the magnetic force link end stretches into the installation cavity and is connected with the sensor unit, the pendulum rod sets up on the pendulum rod link end, pendulum rod and pendulum rod link end rotate to be connected, set up magnetic force spare on the magnetic force link end, the pendulum rod drives the dabber and rotates to change the magnetic field between magnetic force spare and the sensor unit, the sensor unit responds to the signal of the angle change of pendulum rod in the dabber subassembly and transmits to control module, control module is according to signal control the break-make-break of pair solenoid valve subassembly.
The preferred, the magnetic force connecting piece is established to the cover on the magnetic force connection end of dabber, set up the dabber connecting hole on the valve body subassembly, the magnetic force connection end is stretched into the central protrusion in one end of dabber connecting hole by the dabber and is formed, the magnetic force connection end has spacing inclined plane, spacing inclined plane is set up towards the central slope of dabber by magnetic force connection end periphery, set up the spread groove that corresponds magnetic force connection end shape on the magnetic force connecting piece, the magnetic force connecting piece passes through the spread groove and is connected with the magnetic force connection end, the magnetic force piece mounting groove is seted up to the one end that the spread groove was kept away from to the magnetic force connecting piece, the magnetic force piece sets up in the magnetic force piece mounting groove.
Preferably, the pair solenoid valve subassembly includes pair solenoid valve body, admission valve and discharge valve setting are internal at pair solenoid valve, set up connector and binding post between admission valve and the discharge valve, binding post sets up on the connector, the connector has admission valve link and discharge valve link, admission valve link corresponds with the discharge valve link and is connected admission valve and discharge valve, binding post and control module electric connection.
Preferably, the sensor assembly comprises a sensor circuit board and a power connector, two ends of the power connector are correspondingly connected with the sensor circuit board and the control module, a hall element is arranged on the sensor circuit board, and the hall element senses the magnetic field change of the magnetic member in the mandrel assembly and transmits a signal to the control module.
Preferably, the duplex solenoid valve body is provided with an air inlet, an air outlet and an air outlet, the air inlet is communicated with the air inlet valve, the air outlet is communicated with the exhaust valve, the air outlet is provided with a silencer component, and one end of the silencer component extends into the air outlet to be connected with the duplex solenoid valve body.
The silencer assembly comprises a silencer upper cover, a silencing net, a silencer base and the self-plugging rivet, a silencing cavity is formed between the silencer upper cover and the silencer base, the silencing net is arranged on one side, close to the silencer upper cover, of the silencing cavity, a positioning rubber ring is arranged in the silencing cavity, a positioning hole is formed in the center of the positioning rubber ring, the self-plugging rivet is arranged on the positioning rubber ring, and the self-plugging rivet penetrates through the positioning hole.
Preferably, the control module can be controlled by an external remote controller.
The beneficial effects of the utility model reside in that: the utility model discloses an all be integrated into an organic whole structure with sensor module and control module and pair solenoid valve subassembly, the solenoid valve unit among the traditional ECAS can be replaced to the pair solenoid valve subassembly after the integration, all functions of action solenoid valve unit, can replace the height sensor among the traditional ECAS after sensor module and the dabber subassembly are connected, all functions of action height sensor, pendulum rod among the dabber subassembly is passed through to this design changes the value (being the distance between frame and the axle) of the upper and lower rectilinear motion of automobile body into the signal of telecommunication that becomes hall component and can accept and discern through the sensor circuit board among dabber subassembly and the control module, and send sensor circuit board (action ECU function) to discern and handle, except height information, sensor circuit board (action ECU function) still accepts other input information, such as speed of a motor vehicle information, brake information, door information and pressure information etc., then sensor circuit board (action ECU function) synthesizes all input information of air feed, judge current vehicle state according to its inside control logic, arouse pair solenoid valve subassembly makes pair solenoid valve subassembly operation work, realize the gasbag control socket to each air conditioning simultaneously, can realize the external remote controller.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is another schematic view of the structure of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;
FIG. 5 is a schematic view of a dual solenoid valve assembly;
figure 6 is a schematic view of a mandrel assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings.
The utility model provides a following technical scheme:
as shown in fig. 1~6, the utility model discloses an integrated electronic control air suspension system, including duplex solenoid valve subassembly 1, sensor subassembly 2 and control module 3 all set up on duplex solenoid valve subassembly 1, set up dabber subassembly 4 on the duplex solenoid valve subassembly 1, dabber subassembly 4 includes pendulum rod 5, dabber 6 and magnetic force piece 7, dabber 6 has pendulum rod end 8 and magnetic force end 9, set up dabber connecting hole 10 on the duplex solenoid valve subassembly 1, the magnetic force end 9 of dabber 6 stretches into dabber connecting hole 10 and is connected with duplex solenoid valve subassembly 1, magnetic force piece 7 sets up on the magnetic force end 9 of dabber 6, pendulum rod 5 sets up on the pendulum rod end 8 of dabber 6, pendulum rod 5 is connected with pendulum rod end 8 rotation, sensor subassembly 2 responds to the signal of the angle change of pendulum rod 5 in the dabber subassembly 4 and transmits to control module 3, control module 3 is according to signal control the break-make of duplex solenoid valve subassembly 1. Specifically, the sensor assembly 2 and the control module 3 are integrated with the duplex solenoid valve assembly 1 into a whole, the integrated duplex solenoid valve assembly 1 can replace a solenoid valve unit in the traditional ECAS, all functions of the solenoid valve unit can be performed, the sensor assembly 2 and the mandrel assembly 4 can replace a height sensor in the traditional ECAS after being connected, and all functions of the height sensor can be performed, in the design, a change value of the vertical linear motion of a vehicle body (namely, the distance between a vehicle frame and a vehicle axle) is converted into an electric signal which can be received and recognized by a Hall element (not shown) through a swing rod 5 in the mandrel assembly 4 and a sensor circuit board 16 in the control module 3, and the electric signal is transmitted to the sensor circuit board 16 (the function of the travel ECU) for recognition and processing, besides the height information, the sensor circuit board 16 (the function of the travel ECU) also receives other input information, such as vehicle speed information, brake information, vehicle door information, air supply pressure information and the like, then the sensor circuit board 16 (the travel ECU function) integrates all input information, judges the current vehicle state and controls the solenoid valve assembly 1 according to control the control logic of the duplex solenoid valve assembly, so that the duplex solenoid valve assembly 1 can be externally connected to realize remote operation of the remote charge and discharge remote control of the air bags, and remote control of the remote air bags.
The valve body component is a supporting body of the system assembly, and the duplex electromagnetic valve component is inserted in a corresponding hole position and is fastened on the valve body component by a screw; the sensor component is arranged at the corresponding U-shaped hole groove on the valve body and is fastened on the valve body by a screw; the mandrel component is press-mounted in the hole site of the valve body in an interference fit manner, and a steel wire check ring for hole is additionally mounted on the end face of the shaft sleeve of the mandrel component in the hole of the valve body to prevent the mandrel component from falling off in the severe vibration and working processes; meanwhile, a framework oil seal is pressed at the positions of the mandrel and the hole cavity of the valve body to prevent water and dust; then, a swing rod is arranged at the threaded end of the mandrel component in a penetrating mode to the flat square position on the mandrel core and is fastened into a whole through a locking nut.
The upper cover is a sensor circuit board carrier, and the corresponding port of the sensor circuit board is firmly soldered with the contact pin of the external plug-in unit of the upper cover and then fastened together by a screw. Then the special-shaped sealing ring is arranged in a corresponding groove of the upper cover; then the double electromagnetic valve assembly and the sensor assembly are respectively inserted into corresponding sockets on the circuit board and are firmly buckled to avoid falling and poor contact. Then the valve body assembly and the valve body assembly are fastened together by a connecting screw assembly; finally, the silencer component is screwed at the end of the exhaust hole of the valve body.
In particular, the design integrates the traditional ECU unit, the height sensor unit and the electromagnetic valve unit into an integrated structure, so that the structure is greatly simplified, the installation space of a chassis is saved, and the weight of the whole vehicle is reduced; the wiring harness for connecting the ECU unit and the height sensor unit is omitted, as well as the connection harness between the ECU unit and the battery valve unit. Compared with the traditional air suspension, the ELU system has all functions of the ECAS system, and can realize the constant control of the normal running height and the manual lifting except for the mechanical control system through the control of the electronic control module and the remote controller, and can also realize the following steps: the height is reset to be normal along with the speed, the height is switched to a plurality of special heights along with the speed, the normal height is reset by one key of a remote controller, the height is memorized, the lifting shaft is automatically controlled to rise and fall, and the pressure of the air bag is monitored, so that the defects of inflexibility and few functions of the traditional mechanical control air suspension are overcome; the electronic control module monitors and calculates the actual height of the vehicle body in real time through the height sensor, does not make adjustment response to height interference, reduces the air inlet and exhaust times of the electromagnetic valve, and overcomes the defects of excessive adjustment times and high compressed air consumption; compared with a mechanical altitude valve, the valve is always in a switch abrasion state during driving, air leakage is easy to occur after the working time is long, an internal induction element of an ELU altitude sensor is in a non-contact type, only micro abrasion of a swing rod bearing cannot influence air tightness and measurement precision, and the working time of the electromagnetic valve is remarkably reduced under the control of an electronic control module, so that the service life of an ELU assembly is effectively prolonged, the defects that the mechanical control system is high in failure rate and low in service life, the air suspension is slow in popularization speed, and the requirements of a modern high-efficiency intelligent transportation market are difficult to meet are overcome.
Further, pair solenoid valve subassembly 1 includes pair solenoid valve body 11, admission valve 12 and discharge valve 13 set up in pair solenoid valve body 11, set up connector 14 and binding post 15 between admission valve 12 and the discharge valve 13, binding post 15 sets up on connector 14, connector 14 has admission valve link 33 and discharge valve link 34, admission valve link 33 corresponds with discharge valve link 34 and is connected admission valve 12 and discharge valve 13, binding post 15 and control module 3 electric connection.
Specifically, in this embodiment, the intake valve and the exhaust valve in the dual electromagnetic valve assembly are two direct-acting electromagnetic valves installed in parallel, and the piston 36, the profiled ring 38 and the retainer 37 in the electromagnetic valve are all the prior art, which is not described herein again.
Further, the sensor assembly 2 includes a sensor circuit board 16 and a power connector 17, two ends of the power connector 17 are correspondingly connected to the sensor circuit board 16 and the control module 3, a hall element (not shown) is disposed on the sensor circuit board 16, and the hall element (not shown) senses a magnetic field change of the magnetic member 7 in the core shaft assembly 4 and transmits a signal to the control module 3.
Further, an air inlet 19, an air outlet 20 and an air outlet 21 are formed in the duplex solenoid valve body 11, the air inlet 19 is communicated with the air inlet valve 12, the air outlet 20 is communicated with the exhaust valve 13, a silencer component 22 is arranged on the air outlet 21, and one end of the silencer component 22 extends into the air outlet 21 to be connected with the duplex solenoid valve body 11. Further, the silencer assembly 22 comprises a silencer upper cover 23, a silencing net 24, a silencer base 25 and a blind rivet 26, a silencing cavity 27 is formed between the silencer upper cover 23 and the silencer base 25, the silencing net 24 is arranged on one side, close to the silencer upper cover 23, of the silencing cavity 27, a positioning rubber ring 28 is arranged in the silencing cavity 27, a positioning hole 29 is formed in the center of the positioning rubber ring 28, the blind rivet 26 is arranged on the positioning rubber ring 28, and the blind rivet 26 penetrates through the positioning hole 29. Specifically, through setting up muffler subassembly 22, can realize the noise elimination to pair solenoid valve subassembly 1, reduce pair solenoid valve subassembly 1 produced noise of work to avoid the vehicle abnormal sound too big.
Further, magnetic force connecting piece 30 is established to the cover on the magnetic force end 9 of dabber 6, magnetic force end 9 is stretched into the central protrusion of one end of dabber connecting hole 10 by dabber 6 and is formed, magnetic force end 9 has spacing inclined plane 31, spacing inclined plane 31 is held 9 periphery by magnetic force and is set up towards the central slope of dabber 6, set up the spread groove 32 that corresponds magnetic force end 9 shape on the magnetic force connecting piece 30, magnetic force connecting piece 30 passes through spread groove 32 and is connected with magnetic force end 9, magnetic force connecting piece 30 keeps away from the one end of spread groove 32 and sets up magnetic force piece mounting groove 35, magnetic force piece 7 sets up in magnetic force piece mounting groove 35. Specifically, one end of a swing rod 5 is connected with a mandrel component 4, the other end of the swing rod is connected with an upright rod of an axle, an ELU assembly is installed on the frame, when the position relation between the axle and the frame is changed, the swing rod 5 rotates around the central point of the mandrel 6, the mandrel component 4 rotates along with the swing rod 5, magnetic steel with clear north and south poles is installed at the end part of the mandrel 6, the magnetic steel also rotates simultaneously, and a planar Hall element (not shown) is installed on a circuit board in a height sensor component 2 close to the magnetic steel; because the magnetic field distribution density of the magnetic steel is not consistent, the hall element (not shown) senses the change value of the magnetic field intensity and continuously outputs different linear electric signals.
When the carriage is at a set height, the swing rod is in a horizontal state, the system is in a pressure maintaining state, the airbag is maintained in a non-inflation and non-exhaust state, and the duplex electromagnetic valve group is in a power-off state.
When the carriage is lower than the set height and the swing rod is in a clockwise rotation angle state, the sensor senses the magnetic field change of the mandrel assembly, simultaneously the magnetic field change is converted into a voltage signal, the voltage signal is transmitted to the control module of the sensor circuit board for processing, and an instruction is sent to the air inlet valve and the air outlet valve of the duplex electromagnetic valve assembly, the air inlet valve and the air outlet valve are opened, the air bag is inflated, the carriage is enabled to ascend, and the set height is recovered. And meanwhile, the swing rod returns to the horizontal state.
When the carriage is higher than the set height and the swing rod is in a counterclockwise rotation angle state, the sensor senses the magnetic field change of the mandrel assembly, the magnetic field change is converted into a voltage signal, the voltage signal is transmitted to the control module of the sensor circuit board for processing, and a command is sent to the air inlet valve and the output valve of the duplex electromagnetic valve assembly, the air inlet valve is closed, the exhaust valve is opened, meanwhile, the exhaust valve is kept electrified, the air bag exhausts, the carriage descends, and the set height is recovered. And meanwhile, the swing rod returns to the horizontal state.
The height of the carriage can be set remotely through an external remote controller, and convenience is provided for getting on and off the train and loading and unloading goods.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. An integrated electronically controlled air suspension system, comprising: including upper cover and valve body subassembly, the upper cover sets up on the valve body subassembly, form the installation cavity between upper cover and the valve body subassembly, set up pair solenoid valve subassembly and sensor module in the installation cavity, set up the dabber subassembly on the valve body subassembly, the one end of dabber subassembly is passed the valve body subassembly and is stretched into the installation cavity and be connected with sensor module, the dabber subassembly includes dabber and pendulum rod, the dabber has magnetic force link and pendulum rod link, the magnetic force link stretches into the installation cavity and is connected with sensor module, the pendulum rod sets up on the pendulum rod link, the pendulum rod rotates with the pendulum rod link to be connected, set up magnetic force spare on the magnetic force link, the pendulum rod drives the dabber and rotates to change the magnetic field between magnetic force spare and the sensor module, the angle change's of pendulum rod signal and transmission to control module among the sensor module response dabber subassembly, control module is according to signal control pair solenoid valve subassembly's break-make.
2. An integrated electronically controlled air suspension system according to claim 1 wherein: magnetic connecting piece is established to the cover on the magnetic connecting end of dabber, set up the dabber connecting hole on the valve body subassembly, the magnetic connecting end is stretched into the central protrusion in one end of dabber connecting hole by the dabber and is formed, the magnetic connecting end has spacing inclined plane, spacing inclined plane is set up towards the central slope of dabber by magnetic connecting end periphery, set up the spread groove that corresponds the magnetic connecting end shape on the magnetic connecting piece, the magnetic connecting piece passes through the spread groove and is connected with the magnetic connecting end, the magnetic force piece mounting groove is seted up to the one end that the spread groove was kept away from to the magnetic connecting piece, the magnetic force piece sets up in the magnetic force piece mounting groove.
3. An integrated electronically controlled air suspension system according to claim 1 wherein: the duplex solenoid valve subassembly includes duplex solenoid valve body, admission valve and discharge valve setting are internal at the duplex solenoid valve, set up connector and binding post between admission valve and the discharge valve, binding post sets up on the connector, the connector has admission valve link and discharge valve link, the admission valve link corresponds with the discharge valve link and is connected admission valve and discharge valve, binding post and control module electric connection.
4. An integrated electronically controlled air suspension system according to claim 1 wherein: the sensor assembly comprises a sensor circuit board and a power connector, the two ends of the power connector are correspondingly connected with the sensor circuit board and the control module, a Hall element is arranged on the sensor circuit board, and the Hall element senses the magnetic field change of the magnetic part in the mandrel assembly and transmits a signal to the control module.
5. An integrated electronically controlled air suspension system according to claim 3 wherein: the double-electromagnetic-valve-body is provided with an air inlet, an air outlet and an air outlet, the air inlet is communicated with the air inlet valve, the air outlet is communicated with the exhaust valve, the air outlet is provided with a silencer component, and one end of the silencer component extends into the air outlet to be connected with the double-electromagnetic-valve-body.
6. An integrated electronically controlled air suspension system according to claim 5 wherein: the silencer component comprises a silencer upper cover, a silencing net, a silencer base and a blind rivet, wherein a silencing cavity is formed between the silencer upper cover and the silencer base, the silencing net is arranged on one side, close to the silencer upper cover, of the silencing cavity, a positioning rubber ring is arranged in the silencing cavity, a positioning hole is formed in the center of the positioning rubber ring, the blind rivet is arranged on the positioning rubber ring, and the blind rivet penetrates through the positioning hole.
7. An integrated electronically controlled air suspension system according to claim 1 wherein: the control module can also be controlled by an external remote controller.
CN202222508509.XU 2022-09-21 2022-09-21 Integrated electric control air suspension system Active CN218430765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222508509.XU CN218430765U (en) 2022-09-21 2022-09-21 Integrated electric control air suspension system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222508509.XU CN218430765U (en) 2022-09-21 2022-09-21 Integrated electric control air suspension system

Publications (1)

Publication Number Publication Date
CN218430765U true CN218430765U (en) 2023-02-03

Family

ID=85081648

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222508509.XU Active CN218430765U (en) 2022-09-21 2022-09-21 Integrated electric control air suspension system

Country Status (1)

Country Link
CN (1) CN218430765U (en)

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