CN107867268A - Intelligent control method for vehicle hoist - Google Patents
Intelligent control method for vehicle hoist Download PDFInfo
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- CN107867268A CN107867268A CN201711072444.6A CN201711072444A CN107867268A CN 107867268 A CN107867268 A CN 107867268A CN 201711072444 A CN201711072444 A CN 201711072444A CN 107867268 A CN107867268 A CN 107867268A
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- Prior art keywords
- air bag
- tire
- comparator
- chip microcomputer
- circuit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S13/00—Vehicle-manoeuvring devices separate from the vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Handcart (AREA)
Abstract
The present invention proposes a kind of intelligent control method for vehicle hoist, including：S1, initialize single-chip microcomputer, user's booster air pump, S2, during lifting tire, the height on tire and ground is monitored in real time by range sensor, S3, after lifting finishes, control instruction is sent to air pump by single-chip microcomputer, air pump is set to be stopped, S4, when lifting jack works, power end judges the stability of inputing power by overheating protection circuit, the stable power-supplying of single-chip microcomputer can be realized by the operation, in the event of power supply abnormal electrical power supply, self-starting operation can then be carried out, realize Automated condtrol, prevent circuit burnout, reduce the probability caused danger, ensure the safety operation system.
Description
Technical field
The present invention relates to electronic circuit control field, more particularly to a kind of intelligent control method for vehicle hoist.
Background technology
In the prior art, for automobile or wheel apparatus, due to detection or the needs of maintenance vehicle, it is impossible to will
Vehicle lifts or vehicle is reached certain height, the inconvenience of this user resulted in, although there is the lifting of some vehicles to set
It is standby can lift height of car, but corresponding equipment in-convenience in use, Automated condtrol can not be realized, it is necessary to human intervention
Operation is excessive, causes the reduction of the delay and efficiency of time, and this just needs the corresponding technology of those skilled in the art's solution badly and asked
Topic.
The content of the invention
It is contemplated that at least solving technical problem present in prior art, especially innovatively propose one kind and be used for car
The intelligent control method of lifting jack.
In order to realize the above-mentioned purpose of the present invention, the invention provides a kind of intelligent control side for vehicle hoist
Method, comprise the following steps：
S1, single-chip microcomputer is initialized, user's booster air pump, the first air bag and the second air bag is inflated simultaneously, lift tire
Plate and tire interface, controlled motor drive circuit are transported in opposite directions to the first support wheel stepper motor and the second support wheel stepper motor
It is dynamic, so that tire raising board and tire engaging are close, the tactile signals obtained according to tactile feedback circuit, now adjust second
The position for the connecting hole that cable wire is connected with contiguous block, so as to realize safe locking, lock the first cable wire and the second cable wire and
After connecting hole, continue to the first air bag and the second airbag aeration so as to lift tire；
S2, during lifting tire, the height on tire and ground is monitored in real time by range sensor, if reached
To height value set in advance, then shutoff signal is sent to the first magnetic valve and second solenoid valve by single-chip microcomputer, so as to stop
Operation is inflated to the first air bag and the second air bag, while obtains the data of pressure sensor in real time, passes through pressure sensor
The air pressure of the first air bag and the second air bag is perceived, if air pressure is reduced to setting value, sends corresponding barometric information to single-chip microcomputer,
The instruction that single-chip microcomputer sends the first magnetic valve and second solenoid valve is opened, so as to be entered by air pump to the first air bag and the second air bag
Row inflation, if reduced according to the air bag of pressure sensor senses first or the one of gasbag pressure of the second air bag, pass through list
Piece machine sends work order to three-way magnetic valve, and the balloon positions reduced to pressure open the open command of corresponding magnetic valve, together
When the distance on tire and ground is monitored by range sensor, if the distance on tire and ground reduce, pass through list
The instruction that piece machine sends the first magnetic valve and second solenoid valve is opened, is filled simultaneously by air pump to the first air bag and the second air bag
Gas, if range sensor detects that the distance on tire and ground does not change or continued to reduce, reported by indicator lamp
Alert instruction；
S3, after lifting finishes, control instruction is sent to air pump by single-chip microcomputer, air pump is stopped, air pump stops
After work, single-chip microcomputer controls the first magnetic valve and second solenoid valve to open, so that the first air bag and the second air bag are put simultaneously
Gas, when pressure sensor senses are reduced to zero to pressure, contiguous block is opened, by single-chip microcomputer controlled motor drive circuit, is made
First support wheel stepper motor and the second support wheel stepper motor reverse motions, so as to open lifting jack；
S4, when lifting jack works, power end judges the stability of inputing power by overheating protection circuit, according to the 5th
Comparator judges whether that circuit temperature exceedes threshold value, the 6th transistor cutoff if threshold value is not alreadyd exceed, stops electric energy and supplies
Give, if it does not exceed the threshold, the 6th transistor conductor transmission electric energy is sentenced to the 4th comparator, the 4th comparator by the 2nd comparator
Disconnected result, and the result that current detection circuit and first timer judge simultaneously, the 4th comparator result of the comparison is sent to
Single chip microcomputer driving circuit, so as to starting transformer, single-chip microcomputer is set to work, current detection circuit and first timer need what is met
Condition is that current detection circuit detects the stability of electric current, is sent to the 7th comparator, first timer is according to the regular hour
Frequency sends work request to the 7th comparator, and the 7th comparator carries out detection ratio under the temporal frequency of first timer to electric current
Compared with if the data that overheating protection circuit and current detection circuit are detected are normal, stand-by circuit and second timer start
Work, second timer sends temporal frequency to the 13rd comparator, if overheating protection circuit and current detection circuit are detected
Data it is normal, then stand-by circuit think the 9th comparator send signal, to integrated circuit carry out standby operation, if overtemperature protection
The data exception that circuit and current detection circuit are detected, then signal is sent to the 12nd comparator by restarting timer,
Carry out restarting operation.
The described intelligent control method for vehicle hoist, it is preferred that the first air bag and the second air bag alternating
It is inflated.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
Collaborative Control is carried out to the first air bag and the second air bag by single-chip microcomputer, so that lifting jack can assist according to instruction
With work, ensure the safety of lifting state and the experience of user.
The stable power-supplying of single-chip microcomputer can be realized by the operation, in the event of power supply abnormal electrical power supply, then can be carried out certainly
Start-up operation, Automated condtrol is realized, prevent circuit burnout, reduce the probability caused danger, ensure the safety operation system.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the cross section view of single cart jack in Fig. 1；
Fig. 3 is invention circuit connection diagram；
Fig. 4 is general illustration of the present invention；
Fig. 5 is specific embodiment of the invention schematic diagram；
Fig. 6 is power control circuit schematic diagram of the present invention；
Fig. 7 is method of work schematic diagram of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can
To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in Figure 1, 2, the intelligent control method for vehicle hoist, including following system：Mainly by cart jack A
Formed with take-up device.Wherein, cart jack A is mainly by tire raising board 1, support wheel fixing axle 2, support wheel 3, Lifting air sac
4 and supporting steel plate 5 form.Wherein, tire raising board 1 is steel plate, and the cross section of the tire raising board 1 is obtuse triangle.Wheel
Bottom is installed with a support wheel fixing axle 2 at the obtuse angle of tire raising board 1, and the support wheel fixing axle 2 is steel shaft, its a diameter of 3-
6mm.Respectively being rotatably assorted in the front and back ends of support wheel fixing axle 2 has a support wheel 3, a diameter of 40- of the support wheel 3
80cm, and can be more preferably 50,60 or 70cm, and support wheel 3 supports on the ground, and away from tire T.Tire raising board
A 1 minimum acute angle is lifting angle α, and the numerical value at the lifting angle is 10 ° -25 °, and can be more preferably 15 ° or 20 °.Lift
The top surface of tire raising board 1 at lift angle is lifting face 1a, and lifting face 1a is densely covered with anti-skid design, and the shape of anti-skid design does not limit
System, its height of projection is 2-4mm.
Tire raising board 1 is free end positioned at the one end at lifting angle, and the free end is supported on ground when being in off working state
On face, and lift angle at the bottom surface of tire raising board 1 and ground between formed strut angle β, the numerical value of the strut angle at 5 ° -10 °,
And it can be more preferably 7 °, 8 ° or 9 °.The air bag that the lower section of tire raising board 1 is provided with an outsourcing serves as Lifting air sac 4, the act
Air bag 4 is risen to be fixed on the bottom plate of supporting steel plate 5.The front side board and back side panel of supporting steel plate 5 are located at tire raising board 1 and correspondingly
Between the support wheel 3 of side, and corresponding end of the forward and backward side plate of supporting steel plate 5 with support wheel fixing axle 2 is rotatably assorted.
As shown in Figure 1, 2, cart jack A numbers are two, and the two cart jacks A is symmetrically arranged at tire T both sides, and
Two cart jack A lifting face 1a contacts with tire T peripheries bottom.Each cart jack A Lifting air sac 4 is respectively connected with
A piece air inlet pipe 6, the air inlet pipe 6 connects with the gas outlet of threeway intake valve 7, and the air inlet of threeway intake valve 7 passes through tracheae
Connected with air compressor machine 8.
The number of take-up device is two, and is symmetrically arranged at tire T front side and rear side, and the take-up device includes the first steel
The cable wire 10 of rope 9 and second, wherein：The one end of first cable wire 9 and the one of cart jack A termination of support wheel fixing axle 2 are fixed,
The other end of first cable wire 9 is connected by swivel nut screw arbor assembly with one end of the second cable wire 10, and the second cable wire 10 is another
One end is installed with a bar shaped contiguous block 11；The length direction of bar shaped contiguous block 11 is evenly equipped with one group of connecting hole 11a, one of them
Connecting hole empty set is on another cart jack A termination of support wheel fixing axle 2.When tensing two cart jack A, bar shaped connects
The effect of the originally successive step position of block 11, the effect of its trim locations of swivel nut screw arbor assembly, and swivel nut screw arbor assembly are connect using thick
Pitch thread connects, and this Combination Design is with regard to that can make two cart jack A lifting face 1a and tire T peripheries bottom closely connect
Touch.
The operation principle of the present invention is as follows：
Before lifting, two cart jack A are symmetrically arranged to tire T both sides, and two cart jack A lifting face 1a
Contact with the bottom of tire T peripheries, and lifted according to the corresponding connecting hole empty set of diameter of tyres coarse adjustment at another
On the dolly A termination of support wheel fixing axle 2, and swivel nut screw arbor assembly is finely tuned, so that two take-up devices are by two cart jack A
Tense, and two cart jack A lifting face 1a and tire T peripheries bottom are in close contact.Start air compressor machine 8, and open
Threeway intake valve 7, gases at high pressure are injected in two Lifting air sacs 4 simultaneously, during the two Lifting air sacs 4 swell, due to
Two take-up devices tense two cart jack A on tire T both sides, so two tire raising boards 1 can be synchronously around respective
Support wheel fixing axle 2 slowly rotate upwards, so as to which tire T progressively is lifted into certain altitude, and between two tire raising boards 1
Certain interval is left, this gap is just filled in for apparatus for moving vehicle, subsequently to complete to move car operation.Due between suspension and tire
There is damping spring connection, during lifting tire, suspension can only follow tire synchronously to move up, without upward relative to tire
Mobile, suspension and vehicle wicking height will not be too high when will so lift tire certain altitude, thus will not significantly raise whole
The center of gravity of car, so as to avoid the potential safety hazards such as rollover.
In order to improve lifting effect, 4 vehicle hoists can also be connected same air compressor machine by us, so as to pass through confession
Gas, so that 4 tire T of vehicle are synchronously lifted.
This lifting jack can directly lift tire, and lifting is convenient, fast, laborsaving, and the very low can of lift height is easily
The gap that apparatus for moving vehicle is filled between two cart jacks, and contacted with tire bottom surface；Meanwhile suspension also follows tire synchronously to rise
Height, suspension will not opposing tire ramp up, be thus avoided that the height rise of suspension is excessive, so as to ensure the center of gravity of vehicle
It will not raise excessively, and then avoid the security incidents such as rollover, and the small volume of this lifting jack, it is in light weight, it is easy to carry.
As shown in Figure 3-4, the lifting jack, including：Intelligent terminal air pump control signal end connection air pump working signal end, intelligence
Energy terminal single-chip microcomputer signal end connection single-chip microcomputer working signal end, air pump exhaust end connection air compressor air intake mouth, air compressor machine exhaust
Mouth connects the first air bag air inlet and the second air bag air inlet respectively；
Single-chip microcomputer pressure signal receiving terminal connects pressure sensor signal output end, the connection of Chip Microprocessor Temperature signal receiving end
Temperature sensor signal output end, single-chip microcomputer electromagnetic signal output end connection three-way magnetic valve signal receiving end, three-way magnetic valve
Control terminal is arranged at three-way pipeline, and the motor control terminal of single-chip microcomputer first connects the first support wheel stepper motor signal receiving end,
The motor control terminal of single-chip microcomputer second connects the second support wheel stepper motor signal receiving end, the connection of the first air bag of single-chip microcomputer working end
First air bag solenoid signal receiving terminal, the second air bag of single-chip microcomputer working end connect the second air bag solenoid signal receiving terminal, the
One air bag solenoid valve control end connects the first air bag air inlet, and the second air bag solenoid valve control end connects the second air bag air inlet,
Single-chip microcomputer tactile feedback signal end connects tactile feedback circuit signal transmitting terminal, and tactile feedback circuit is arranged at contiguous block.
Obtain the pressure data of the lifting jack air bag in real time by pressure sensor, prevent contingency, give rise to
The safe altitude of lifting can be obtained after certain distance by range sensor, so as to feed back to user, makes user to lifting
State real-time awareness, in addition for two air bags by corresponding magnetic valve carry out in real time control aeration quantity, ensure that intelligence
Accurately lifting vehicle, it is convenient and practical so as to improve operating efficiency.
As shown in figure 4, the intelligent lifting jack, carries out expanding connection use, while control multiple according to actual use situation
The lift operation of wheel, it is preferred that the intelligent lifting jack includes the first lifting jack, the second lifting jack, the 3rd lifting jack and the 4th
Lifting jack, control terminal first lift signal end and connect the first lifting jack working signal end, and control terminal second lifts signal end
The second lifting jack working signal end is connected, control terminal the 3rd lifts signal end and connects the 3rd lifting jack working signal end, control
Terminal the two or four lifts signal end and connects the 4th lifting jack working signal end.
As shown in Figure 5, it is preferred that microcontroller power supply end connects the 2nd electric capacity one end, and the 2nd electric capacity other end connects surely respectively
Depressor power input and relay normally open contact one end, the relay normally open contact other end connect the first air bag magnetic valve respectively
Signal receiving end and the second air bag solenoid signal receiving terminal, the first air bag solenoid valve control end connection first check-valve one end,
The first check-valve other end connects first air valve one end, and the first air valve other end connects the first air bag air inlet, the second air bag electricity
Magnet valve control terminal connection second check-valve one end, the second check-valve other end connect second air valve one end, the second air valve other end
The second air bag air inlet is connected, voltage-stablizer power output end connects the 3rd electric capacity one end, and the 3rd electric capacity other end connection single-chip microcomputer is anti-
Feedback signal end, air pump working signal end connect the relay normally open contact other end and single-chip microcomputer air pump working signal end respectively, single
Piece machine crystal oscillator end parallel connection crystal oscillator, crystal oscillator one end is also respectively connected with the 4th electric capacity one end and the 3rd electric capacity other end, the 4th electric capacity other end
The 5th electric capacity one end, the 5th electric capacity other end connection crystal oscillator other end are connected, single-chip microcomputer trigger signal end connects the 2nd resistance one end,
The 2nd resistance other end connects the 2nd diode cathode, and the 2nd diode cathode connects the 1st transistor base, the 1st transistor collector
Connect the 2nd electric capacity other end, the 1st emitter ground connection, the 1st switch connection single-chip microcomputer start end, the 2nd switch connection monolithic
Machine stops end, and the 3rd switch connection single-chip microcomputer restarts end, power control circuit signal end connection microcontroller power supply signal end, monolithic
The first indication signal of machine end connects the 1st resistance one end, and the 1st resistance other end connects the 1st electric capacity one end, the 1st electric capacity other end point
Not Lian Jie the 1st light emitting diode negative pole and ground connection, the 1st light emitting diode positive pole connection the second indication signal of single-chip microcomputer end；
First support wheel stepper motor and the second support wheel stepper motor are electric to corresponding stepping by motor-drive circuit
Machine is driven work,
Intelligent terminal is using high speed computing devices such as computer or laptop computers.
Single-chip microcomputer is preferably AT89C2051.
Voltage-stablizer is preferably 78L05.
As shown in fig. 6, civil power output end connection fuse one end, fuse other end connection rectifier bridge one end, rectifier bridge
One end is also connected with the 6th electric capacity one end, and the 6th electric capacity other end connects the 7th electric capacity one end and the 8th electric capacity one end respectively, and the 8th electric capacity is another
One end is grounded, and the 7th electric capacity other end connects the rectifier bridge other end and the 3rd resistance one end respectively, and the 3rd resistance other end connects respectively
9th electric capacity one end and the 4th diode cathode, the 9th electric capacity other end ground connection, the 9th electric capacity one end are also connected with the end of transformer the 1st, become
The end of depressor the 5th connects the 3rd diode cathode, and the 3rd diode cathode connects the 12nd electric capacity one end and the 13rd electric capacity one end respectively, the
13 electric capacity one end are also respectively connected with the 4th resistance one end and the 1st inductance one end, the 12nd electric capacity other end, the 13rd electric capacity other end point
It is not grounded, the 4th resistance other end connects the 11st electric capacity one end, and the 1st inductance other end connects the 10th electric capacity one end and power supply respectively
Output end, the 10th electric capacity other end connect the 11st electric capacity one end and ground connection respectively, and the 11st electric capacity other end connects the 7th resistance respectively
One end and the 14th electric capacity one end, the 7th resistance other end connect the 15th electric capacity one end, and the 15th electric capacity other end connects the 5th two respectively
Pole pipe negative pole and the 6th diode cathode, the 5th diode cathode are also connected with the 6th resistance one end, and the 5th diode cathode connects respectively
The 6th resistance other end and the 5th resistance one end, the 5th resistance other end connect the 9th resistance one end and the 11st resistance one end respectively, and the 9th
The resistance other end connects the 10th resistance one end, and the 10th resistance other end connects the 14th electric capacity other end and the 8th resistance one end respectively,
The 11st resistance other end connects the 7th diode cathode, and the 7th diode cathode connects the 12nd resistance one end, the 12nd resistance other end
The 7th emitter is connected, the 7th transistor collector connects the 8th resistance other end and ground connection, the 7th transistor base respectively
The 13rd resistance one end and the 14th resistance one end, the 14th resistance other end ground connection are connected respectively, and the 13rd resistance other end connection the 4th is opened
One end, the 4th switch other end connection power output end are closed, the 8th resistance other end is also respectively connected with the 16th electric capacity one end and the 6th two
Pole pipe positive pole, the 16th electric capacity other end connect the 14th electric capacity one end and the 8th resistance one end respectively；
Foregoing circuit is system start-up circuit, and operation is controlled for starting single-chip microcomputer, reaches stable out-put supply, prevents
The effect that only single-chip microcomputer burns.
Preferably, the 4th diode cathode connection transformer the 3rd end, the end of transformer the 4th the 17th electric capacity one end of connection, the 17th
The electric capacity other end connects the 18th electric capacity one end and the 3rd transistor collector respectively, and the 3rd emitter connects the 9th diode
Negative pole, the 18th electric capacity other end connect the 3rd transistor base and the 15th resistance one end, the 15th resistance other end connection the 8th respectively
Diode cathode, the 8th diode cathode connect the 10th diode cathode, and the 3rd emitter connects the 9th diode cathode,
9th diode cathode connects the 3rd transistor base and the 13rd diode cathode, the 13rd diode cathode connection 5V power supplys respectively
End, the 13rd diode cathode are also connected with the 12nd diode cathode and the 20th electric capacity one end, and the 12nd diode cathode connects the respectively
20 resistance one end and the 20th electric capacity other end, the 20th resistance one end are also connected with the 19th resistance one end, the 19th resistance other end difference
The 20th electric capacity one end and the 18th resistance one end, the 18th resistance other end ground connection are connected, the 9th diode cathode is also connected with restarting
Timer signal input, restarting timer signal output end connect the 12nd comparator electrode input end, the 12nd comparator
Negative input is grounded, and the 12nd comparator output terminal connects the 9th comparator first input end, the 10th diode cathode connection the 16th
Resistance one end, the 16th resistance other end connect the 4th transistor base respectively, and the 4th crystal emitter stage connects the 19th electric capacity one respectively
End and the 11st diode cathode, the 11st diode cathode connect the 4th transistor collector and ground connection, the 4th transistor current collection respectively
Pole is also connected with the 19th electric capacity other end and the 17th resistance one end, and the 17th resistance other end connects the 19th electric capacity one end, the 11st 2 pole
Pipe negative pole is also connected with the 13rd comparator and floats technology as read, and second timer signal output part connects the input of the 13rd comparator positive pole
End, the 13rd comparator output terminal connect the 11st comparator first input end, and restarting timer signal input is also connected with the 2nd
Triode grid, the 2nd triode source electrode connection transformer the 2nd end, the 2nd triode drain electrode connection single chip microcomputer driving circuit signal are defeated
Go out end, single chip microcomputer driving circuit control signal input connects the 3rd comparator signal output end, the 3rd comparator electrode input end
The 24th electric capacity one end is connected, the 24th electric capacity other end ground connection, the 24th electric capacity one end is also connected with 5V feeder ears, the 3rd comparator negative pole
Input connects the 2nd comparator negative input and the 4th diode cathode, the 2nd comparator electrode input end connection the 23rd respectively
Electric capacity one end, the 23rd electric capacity other end ground connection, the 23rd electric capacity one end are also connected with 5V power ends, and the 2nd comparator signal output end connects
The 4th comparator first input end is connect, the 4th comparator output terminal connection single chip microcomputer driving circuit working signal input, the 1st compares
Device negative input connects the 2nd comparator negative input respectively and the 6th comparator floats technology as read, and the 1st comparator positive pole is defeated
Enter end the 22nd electric capacity one end of connection, the 22nd electric capacity other end ground connection, the 22nd electric capacity one end is also connected with 5V power ends, the 1st comparator
Signal output part connects the 6th emitter, and the 6th transistor collector connects the 5th comparator signal output end, the 6th crystal
Pipe base stage connects the 4th the second input of comparator and the 5th transistor base respectively, and the 13rd diode cathode is also respectively connected with electric current
Detect circuit signal input and stand-by circuit signal input part, current detection circuit signal output part connects the 7th comparator the
One input, the 7th the second input of comparator connection first timer signal output part, the connection of the 7th comparator signal output end
5th emitter, the 8th comparator signal output end connect the 5th transistor collector, the 8th comparator first input end point
Not Lian Jie the signal output part of stand-by circuit first and the 9th comparator signal output end, the 9th comparator first input end connection it is standby
Circuit secondary signal output end, stand-by circuit secondary signal output end are also connected with the 11st the second input of comparator.
Foregoing circuit realizes to be transmitted to the stable of power supply, is improved the operational efficiency of single-chip microcomputer, is saved time overhead,
Ensure stable equipment operation.
Wherein, U1 is comparator, and U2 and U3 are UVLO summation comparators, and U5 threshold decision comparators, U6 is that OVP overvoltages are protected
Electric current is protected, U7, U9 and U11 are inclusion relation thresholding decision circuitry, and U8 is threshold decision comparator, and U10 and U12 are comparator,
U13 is comparator.
As shown in fig. 7, the method for work of above-mentioned intelligence control system, comprises the following steps：
S1, single-chip microcomputer is initialized, user's booster air pump, the first air bag and the second air bag is inflated simultaneously, lift tire
Plate and tire interface, controlled motor drive circuit are transported in opposite directions to the first support wheel stepper motor and the second support wheel stepper motor
It is dynamic, so that tire raising board and tire engaging are close, the tactile signals obtained according to tactile feedback circuit, now adjust second
The position for the connecting hole that cable wire is connected with contiguous block, so as to realize safe locking, lock the first cable wire and the second cable wire and
After connecting hole, continue to the first air bag and the second airbag aeration so as to lift tire；
S2, during lifting tire, the height on tire and ground is monitored in real time by range sensor, if reached
To height value set in advance, then shutoff signal is sent to the first magnetic valve and second solenoid valve by single-chip microcomputer, so as to stop
Operation is inflated to the first air bag and the second air bag, while obtains the data of pressure sensor in real time, passes through pressure sensor
The air pressure of the first air bag and the second air bag is perceived, if air pressure is reduced to setting value, sends corresponding barometric information to single-chip microcomputer,
The instruction that single-chip microcomputer sends the first magnetic valve and second solenoid valve is opened, so as to be entered by air pump to the first air bag and the second air bag
Row inflation, if reduced according to the air bag of pressure sensor senses first or the one of gasbag pressure of the second air bag, pass through list
Piece machine sends work order to three-way magnetic valve, and the balloon positions reduced to pressure open the open command of corresponding magnetic valve, together
When the distance on tire and ground is monitored by range sensor, if the distance on tire and ground reduce, pass through list
The instruction that piece machine sends the first magnetic valve and second solenoid valve is opened, is filled simultaneously by air pump to the first air bag and the second air bag
Gas, if range sensor detects that the distance on tire and ground does not change or continued to reduce, reported by indicator lamp
Alert instruction；
S3, after lifting finishes, control instruction is sent to air pump by single-chip microcomputer, air pump is stopped, air pump stops
After work, single-chip microcomputer controls the first magnetic valve and second solenoid valve to open, so that the first air bag and the second air bag are put simultaneously
Gas, when pressure sensor senses are reduced to zero to pressure, contiguous block is opened, by single-chip microcomputer controlled motor drive circuit, is made
First support wheel stepper motor and the second support wheel stepper motor reverse motions, so as to open lifting jack.
S4, when lifting jack works, power end judges the stability of inputing power by overheating protection circuit, according to the 5th
Comparator judges whether that circuit temperature exceedes threshold value, the 6th transistor cutoff if threshold value is not alreadyd exceed, stops electric energy and supplies
Give, if it does not exceed the threshold, the 6th transistor conductor transmission electric energy is sentenced to the 4th comparator, the 4th comparator by the 2nd comparator
Disconnected result, and the result that current detection circuit and first timer judge simultaneously, the 4th comparator result of the comparison is sent to
Single chip microcomputer driving circuit, so as to starting transformer, single-chip microcomputer is set to work, current detection circuit and first timer need what is met
Condition is that current detection circuit detects the stability of electric current, is sent to the 7th comparator, first timer is according to the regular hour
Frequency sends work request to the 7th comparator, and the 7th comparator carries out detection ratio under the temporal frequency of first timer to electric current
Compared with if the data that overheating protection circuit and current detection circuit are detected are normal, stand-by circuit and second timer start
Work, second timer sends temporal frequency to the 13rd comparator, if overheating protection circuit and current detection circuit are detected
Data it is normal, then stand-by circuit think the 9th comparator send signal, to integrated circuit carry out standby operation, if overtemperature protection
The data exception that circuit and current detection circuit are detected, then signal is sent to the 12nd comparator by restarting timer,
Carry out restarting operation.The stable power-supplying of single-chip microcomputer can be realized by the operation, in the event of power supply abnormal electrical power supply, then can
Self-starting operation is enough carried out, Automated condtrol is realized, prevents circuit burnout, reduces the probability caused danger, ensures safety behaviour
Make the system.
Intelligent terminal is jointly controlled to single-chip microcomputer and air pump so that lifting jack systematic can cooperate, such as
Fruit carries out lift operation for four tires of automobile simultaneously to be needed to operate by newly-increased control terminal.
When each wheel sets vehicle hoist, by intelligent terminal respectively to the first lifting jack, the second lifting jack,
3rd lifting jack and the 4th lifting jack carry out coordinated signals, in order to prevent rollover from causing danger, first control be placed on headstock or
The first lifting jack and the second lifting jack of person's tailstock, after the air bag of the first lifting jack and the second lifting jack raises certain altitude,
Then the 3rd lifting jack and the 4th lifting jack are lifted, real-time bus and the height value on ground are obtained by range sensor, according to
The lifting jack of demand modeling first, the second lifting jack, the 3rd lifting jack and the 4th lifting jack of user lifts identical or different
Highly.
In addition, for lifting jack, by controlling terminal to connect four lifting jacks, control terminal-pair lifting jack is lifted
During lift operations, the first lifting jack and the second lifting jack simultaneously and it is synchronous carry out lift operation, when certain altitude is given rise to, control
The lifting jack of terminal control the 3rd and the 4th lifting jack carry out lift operation, and it is pre- to treat that the first lifting jack to the 4th lifting jack entirely reaches
If height when, air pump stop charge operation, now overhauled, if terminate lift operation, control terminal control it is corresponding
Magnetic valve is opened, and the air bag of the first lifting jack and the 4th lifting jack is carried out into bleed air operation simultaneously, terminates corresponding lifting work.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (2)
1. a kind of intelligent control method for vehicle hoist, it is characterised in that comprise the following steps：
S1, initialize single-chip microcomputer, user's booster air pump, the first air bag and the second air bag are inflated simultaneously, make tire raising board and
Tire interface, controlled motor drive circuit to the first support wheel stepper motor and the second support wheel stepper motor move toward one another, from
And tire raising board and tire is engaged close, to be obtained according to tactile feedback circuit tactile signals, now adjust the second cable wire
The position for the connecting hole being connected with contiguous block, so as to realize safe locking, lock the first cable wire and the second cable wire and connection
After hole, continue to the first air bag and the second airbag aeration so as to lift tire；
S2, during lifting tire, the height on tire and ground is monitored in real time by range sensor, if reaching pre-
The height value first set, then shutoff signal is sent to the first magnetic valve and second solenoid valve by single-chip microcomputer, so as to stop to the
One air bag and the second air bag are inflated operation, while obtain the data of pressure sensor in real time, pass through pressure sensor senses
The air pressure of first air bag and the second air bag, if air pressure is reduced to setting value, corresponding barometric information is sent to single-chip microcomputer, monolithic
The instruction that machine sends the first magnetic valve and second solenoid valve is opened, so as to be filled by air pump to the first air bag and the second air bag
Gas, if reduced according to the air bag of pressure sensor senses first or the one of gasbag pressure of the second air bag, pass through single-chip microcomputer
Work order is sent to three-way magnetic valve, the balloon positions reduced to pressure open the open command of corresponding magnetic valve, lead to simultaneously
Cross range sensor to be monitored the distance on tire and ground, if the distance on tire and ground reduces, pass through single-chip microcomputer
The instruction of the first magnetic valve and second solenoid valve unlatching is sent, is inflated simultaneously to the first air bag and the second air bag by air pump, such as
Fruit range sensor detects that the distance on tire and ground does not change or continued to reduce, and carrying out alarm by indicator lamp refers to
Show；
S3, after lifting finishes, control instruction is sent to air pump by single-chip microcomputer, air pump is stopped, air pump is stopped
Afterwards, single-chip microcomputer controls the first magnetic valve and second solenoid valve to open, so that the first air bag and the second air bag are deflated simultaneously, when
Pressure sensor senses to pressure be reduced to zero when, open contiguous block, by single-chip microcomputer controlled motor drive circuit, make first
Support wheel stepper motor and the second support wheel stepper motor reverse motions, so as to open lifting jack；
S4, when lifting jack works, power end judges the stability of inputing power by overheating protection circuit, compares according to the 5th
Device judges whether that circuit temperature exceedes threshold value, the 6th transistor cutoff if threshold value is not alreadyd exceed, stops electric energy supply,
If it does not exceed the threshold, the 6th transistor conductor transmission electric energy is judged to the 4th comparator, the 4th comparator by the 2nd comparator
As a result, and the result that judges simultaneously of current detection circuit and first timer, the 4th comparator result of the comparison is sent to list
Piece drive circuit, so as to starting transformer, single-chip microcomputer is set to work, the bar that current detection circuit and first timer needs meet
Part is that current detection circuit detects the stability of electric current, is sent to the 7th comparator, first timer is according to regular hour frequency
Rate sends work request to the 7th comparator, and the 7th comparator carries out detection ratio under the temporal frequency of first timer to electric current
Compared with if the data that overheating protection circuit and current detection circuit are detected are normal, stand-by circuit and second timer start
Work, second timer sends temporal frequency to the 13rd comparator, if overheating protection circuit and current detection circuit are detected
Data it is normal, then stand-by circuit think the 9th comparator send signal, to integrated circuit carry out standby operation, if overtemperature protection
The data exception that circuit and current detection circuit are detected, then signal is sent to the 12nd comparator by restarting timer,
Carry out restarting operation.
2. the intelligent control method according to claim 1 for vehicle hoist, it is characterised in that first air bag
Alternately inflated with the second air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072444.6A CN107867268B (en) | 2017-11-03 | 2017-11-03 | Intelligent control method for vehicle lifter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711072444.6A CN107867268B (en) | 2017-11-03 | 2017-11-03 | Intelligent control method for vehicle lifter |
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| CN107867268B CN107867268B (en) | 2020-10-30 |
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| CN203653170U (en) * | 2013-11-19 | 2014-06-18 | 浙江吉利汽车研究院有限公司 | Wheel limiting mechanism and wheel limiting device of automobile elevator |
| CN106092599A (en) * | 2016-05-30 | 2016-11-09 | 长春速建新技术开发有限公司 | Sedan lifted type air bag lifting brake testing stand |
| CN205930616U (en) * | 2016-08-25 | 2017-02-08 | 伍乐霜 | Automobile -used auxiliary lifting system |
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| US20040217338A1 (en) * | 2003-04-30 | 2004-11-04 | Abrahamson Guy A. | Device and method for leveling recreational vehicles |
| CN101479145A (en) * | 2006-06-26 | 2009-07-08 | 尤罗梅因特公司 | A device for lifting at least one wheel of a railbound vehicle |
| EP2617673A2 (en) * | 2012-01-23 | 2013-07-24 | Albert Vincent Coccaro | Pneumatic jack |
| CN203568771U (en) * | 2013-07-20 | 2014-04-30 | 大力汽保(营口)装备制造有限公司 | Air bag lifting trolley |
| CN203653170U (en) * | 2013-11-19 | 2014-06-18 | 浙江吉利汽车研究院有限公司 | Wheel limiting mechanism and wheel limiting device of automobile elevator |
| CN106092599A (en) * | 2016-05-30 | 2016-11-09 | 长春速建新技术开发有限公司 | Sedan lifted type air bag lifting brake testing stand |
| CN205930616U (en) * | 2016-08-25 | 2017-02-08 | 伍乐霜 | Automobile -used auxiliary lifting system |
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|---|---|
| CN107867268B (en) | 2020-10-30 |
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