CN109192051A - A kind of motor racing analog platform device and method that liquid is electrically coupled - Google Patents
A kind of motor racing analog platform device and method that liquid is electrically coupled Download PDFInfo
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- CN109192051A CN109192051A CN201811324121.6A CN201811324121A CN109192051A CN 109192051 A CN109192051 A CN 109192051A CN 201811324121 A CN201811324121 A CN 201811324121A CN 109192051 A CN109192051 A CN 109192051A
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- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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Abstract
The present invention relates to a kind of motor racing analog platform devices that liquid is electrically coupled, including motion platform, support platform, the 4 connection hydraulic mechanisms and linear motion unit being fixed in support platform；The cylinder barrel for being connected to the mobile hydraulic cylinder of hydraulic mechanism is connect with motion platform by flexural pivot, flexural pivot is consistent with the arrangement of vehicle body with the positional relationship of motion platform with automobile tire, and the piston rod of fixer cylinder pressure for being connected to hydraulic mechanism is fixedly connected with the transmission mechanism of linear motion unit；Displacement angle sensor is fixed on motion platform.By the steering and the revolving speed that control servo motor, and then realization is to the Pose Control of motion platform, can the vehicle body pose of simulated automotive in the process of moving, solve the problems, such as that existing motor racing simulator is at high cost, structure is complicated, control is cumbersome and be not suitable for doing durability experiment.
Description
Technical field
The invention belongs to motor racing analogue technique fields, and in particular to a kind of motor racing analog platform that liquid is electrically coupled
Device and method.
Background technique
Motor racing analog platform is a kind of ground simulation emulator for simulated automotive driver's dynamic impression,
The driver and passenger on analog platform can be allowed to experience similar instantaneous overload and attitudes vibration in real car driving process.Fortune
The developing history of dynamic analog platform is broadly divided into the following three stage: the first stage is the movement in the period in electromechanical analogy stage
Analog platform does not have basic movement and dynamics resolves function, can not accurate reproduction go out the real motion sense of driver
By；Second stage is that the electronic simulation stage is fast-developing in this period electronic technology, and be born First electronic computer,
Researcher starts with analog circuit to resolve Vehicle dynamics so that the various aspects of performance of analog platform have it is larger
The promotion of degree.But due to the increase of analog circuit, more accumulated errors is brought, has seriously affected and precision is wanted
It asks；Phase III is typically to be characterized in the stage in digital simulation stage that digital computer technique is successfully applied to movement mould
In the development process of quasi- platform.Digital computer overcomes accumulated error caused by analog circuit hardware, so that computing capability
It increases substantially, further improves the solving precision of mathematical model, significantly improve motion simulation platform dynamic analog energy
Power.
External motion simulation platform mostly uses the parallel institution of six degree of freedom, but for automobile, certain
Freedom degree direction, which only needs to make small movement, can quickly change motion profile.Since it changes amplitude even well below people
Body threshold of perception current, thus using lower-mobility motion simulation platform carry out dynamic analog be possibly realized, and when it is unnecessary from
After being reduced by degree, the complexity and development cost of mechanism will just be substantially reduced, but price is still very expensive.
Motor racing analog platform at this stage can be divided into two kinds of movement outputs of hydraulic actuator formula and electric cylinders actuator formula
Mode.
Main problem existing for the motor racing analog platform device of hydraulic actuator control model is:
1, it needs to realize hydraulic cylinder movement output by hydraulic power unit and hydraulic system, control structure is complicated, and control is patrolled
Volume cumbersome, rigging up and debugging difficulty is very big, leads to that the use difficulty of later period device is big and platform maintenance is at high cost；
2, noise is big when running, and under the action of hydraulic pump, the intracorporal hydraulic fluid pressure of platform motion process middle cylinder is high, pole
The Leakage of hydraulic circuit is easily led to, while to the serious noise pollution that working space generates.
Main problem existing for the motor racing analog platform device of electric cylinders actuator control model is:
1, it needs to carry out platform courses by complicated electrical control system, control strategy is complicated, due to electric cylinders actuator
Arrangement of parts limited by space, cause electric cylinders output torque, output range and the speed of service limited, for wide range, big turn round
The operation of the automobile limiting condition of square and speedy carding process is difficult to realize；
2, the part such as motor, retarder in electric cylinders actuator composition components are that motor racing analog platform is servo-actuated portion
Part, leading to electric cylinders actuator, rotary inertia is big in the process of running, to influence the motor racing simulation of electric cylinders actuator control
The starting of stage apparatus and retro-speed have seriously affected the movement simulated performance of stage apparatus, while stage apparatus rotation is used
Amount directly results in greatly operation energy consumption height.
In conclusion needing to develop a kind of motor racing analog platform under the requirement for meeting application demand and low cost
Device.
Summary of the invention
The object of the present invention is to provide a kind of motor racing analog platform devices that liquid is electrically coupled, and meet simulation actual use
Under operating condition automobile pose change application demand premised on, solve existing motor racing simulator is at high cost, structure is complicated,
It controls cumbersome and is not suitable for the problem of doing durability experiment.
The purpose of the present invention is achieved through the following technical solutions:
A kind of motor racing analog platform device that liquid is electrically coupled, including motion platform 3, support platform 4, it is fixed on support
4 connection hydraulic mechanisms 1 and linear motion unit 2 on platform 4；The mobile hydraulic cylinder 15 of 4 connection hydraulic mechanisms 1
Cylinder barrel connect with motion platform 3 by flexural pivot, the positional relationship and automobile tire and vehicle body of the flexural pivot and motion platform 3
Arrangement it is consistent, be connected to hydraulic mechanism 1 fixer cylinder pressure 17 fixed hydraulic cylinder piston rod 19 and linear motion unit 2 biography
Motivation structure is fixedly connected；Displacement angle sensor 31 is fixed on the motion platform 3.
As the further technical solution of the present invention: the connection hydraulic mechanism 1 is living including pedestal 11, mobile hydraulic cylinder
Stopper rod 12, transmission connection plate 13, bulb 14, mobile hydraulic cylinder 15, hydraulic hose 16, fixer cylinder pressure 17, supporting block 18 and solid
Determine hydraulic cylinder piston rod 19；The cylinder barrel of the fixer cylinder pressure 15 and piston of its inside and 19 groups of fixed hydraulic cylinder piston rod
At prismatic pair；The cylinder barrel of mobile hydraulic cylinder 15 and its internal piston and movable hydraulic cylinder piston rod 12 form prismatic pair；It is described
11 one end of pedestal be fixed on support platform 4 is connected, the other end and movable hydraulic cylinder piston rod 12 are connected；Mobile hydraulic cylinder 15
Liquid outlet be connected to the liquid outlet of fixer cylinder pressure 17 by hydraulic hose 16, fixer cylinder pressure 17 passes through the fixation of supporting block 18
In support platform 4；Described transmission connection 13 one end of plate is connected with the cylinder barrel of mobile hydraulic cylinder 15, and the other end is solid with bulb 14
Even, bulb 14 is the same as the ball angled seat flexural pivot connection for being welded on motion platform 3.
As the further technical solution of the present invention: the linear motion unit 2 includes servo motor 21, support plate
22, the interconnecting piece that transmission mechanism, plate 25 and the link block 26 that bearing 29, screw rod 23 and screw 24 form form；The silk
Thick stick 23 is connected in support plate 22 by bearing 29, one end of lead screw and the output shaft fixed connection of servo motor 21, the company
The plate 25 of socket part is connected on screw 24, and link block 26 is connected on 25, and fixed hydraulic cylinder piston rod 19 and link block 26 are solid
Even, support plate 22 is fixed in support platform.
As the further technical solution of the present invention: the linear motion unit 2 further includes trapezoidal slide block 27 and trapezoidal
The prismatic pair that guide rail 28 forms, the trapezoidal slide block 27 are connected in the lower end of screw 24, and trapezoidal rails are fixed on support plate 22
On.
As the further technical solution of the present invention: the transmission mechanism of the linear motion unit 2 includes link mechanism
With retarder 213, one end of link mechanism and fixed hydraulic cylinder piston rod 19 form revolute, the other end and retarder 213
Output shaft fixed connection, the input shaft of retarder 213 and the output shaft fixed connection of servo motor 21.
As the further technical solution of the present invention: the link mechanism is multi link or first connecting rod 211 and second
The double link of connecting rod (212) composition.
As the further technical solution of the present invention: servo motor 21, retarder 213 and the controller control connects
It connects.
It is a further object to provide the behaviour for the motor racing analog platform device being electrically coupled based on the liquid
Make method, its step are as follows:
(1) it will be connected in hydraulic mechanism 1 by the piston and liquid in mobile hydraulic cylinder 15, inside fixer cylinder pressure 17, cylinder barrel
Full of the hydraulic oil with certain pressure in the connection oil circuit that pressuring oil pipe 16 forms；
(2) servo of 4 linear motion units 2 is controlled respectively according to the running car pavement conditions of setting by controller
The steering of 21 output shaft of motor and its revolving speed, transmission mechanism drive the forward or backward linear movement output of link block 26, Gu
Determine cylinder hydraulic bar 19 and push or pull back forward 17 inner piston of fixer cylinder pressure, hydraulic oil is flowed by hydraulic hose 16
Enter mobile hydraulic cylinder 15 or flow into fixer cylinder pressure 17, the cylinder barrel of mobile hydraulic cylinder 15 is driven to rise or decline；
And then the variation of 15 output displacement of mobile hydraulic cylinder is transferred to motion platform 3 by bulb 14；
(3) angle and change in displacement of motion platform 3 are obtained by the displacement angle sensor 31 on motion platform 3.
Beneficial effects of the present invention are as follows:
1, compared with the motor racing analog platform device of hydraulic actuator control: one, without the liquid of complex control
Press pump station and hydraulic system, control principle is clear, and control structure is simple, using and repairing convenient for later period device；Two, when running
Noise is small, and the intracorporal hydraulic working oil pressure of hydraulic cylinder is low, is able to solve the Leakage of hydraulic circuit, while efficiently dropping
The noise pollution problem generated in the low conventional hydraulic actuator course of work.
2, compared with the motor racing analog platform device of electric cylinders actuator control: one, without complicated electric appliance control
System processed controls clear thinking, can be avoided the arrangement of parts limited space problem of traditional electric cylinders actuator, and installation cost is low,
Structure is easily achieved；Two, the rotary inertia of motion platform can be dramatically reduced, improve movement simulated performance, reduce
Operation energy consumption is suitble to complete automobile or auto parts and components durability experiment
In conclusion motor racing analog platform device of the invention is suitable for the simulation of various motion poses, including multiply
It is simulated with the movement of vehicle, commercial vehicle, engineering truck, motorcycle and aircraft etc., at low cost, control is simple, structure is easily achieved
The advantages of with suitable completion automobile or auto parts and components durability experiment.
Detailed description of the invention
Fig. 1 is the structure top view for the motor racing analog platform device that liquid of the present invention is electrically coupled；
Fig. 2 is the structural front view for the motor racing analog platform device that liquid of the present invention is electrically coupled；
Fig. 3 is the schematic diagram of present invention connection hydraulic mechanism；
Fig. 4 is the main view of present invention connection hydraulic mechanism；
Fig. 5 is the structure chart of linear motion unit of the present invention；
Fig. 6 is the connection figure of present invention connection hydraulic mechanism and linear motion unit；
Fig. 7 is another linear motion unit structure chart of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, the present invention provides a kind of motor racing analog platform device that liquid is electrically coupled, including movement is put down
Platform 3, support platform 4, the 4 connection hydraulic mechanisms 1 and linear motion unit 2 being fixed in support platform 4；4 companies
The cylinder barrel of the mobile hydraulic cylinder 15 of logical hydraulic mechanism 1 is connect with motion platform 3 by flexural pivot, the flexural pivot and motion platform 3
Positional relationship it is consistent with the arrangement of vehicle body with automobile tire, be connected to hydraulic mechanism 1 fixer cylinder pressure 17 fixer cylinder pressure
Piston rod 19 is fixedly connected with the transmission mechanism of linear motion unit 2；Displacement angle sensing is fixed on the motion platform 3
Device 31.Servo motor 21, retarder 213 and the controller control connection.
As shown in figure 4, connection hydraulic mechanism 1 of the present invention includes pedestal 11, movable hydraulic cylinder piston rod 12, transmission
Connecting plate 13, bulb 14, mobile hydraulic cylinder 15, hydraulic hose 16, fixer cylinder pressure 17, supporting block 18 and fixed hydraulic the cylinder piston
Bar 19；The cylinder barrel of the fixer cylinder pressure 15 and its internal piston and fixed hydraulic cylinder piston rod 19 form prismatic pair；It moves
The cylinder barrel of hydrodynamic cylinder pressure 15 and its internal piston and movable hydraulic cylinder piston rod 12 form prismatic pair；Described 11 one end of pedestal
It is fixed on support platform 4 is connected, the other end and movable hydraulic cylinder piston rod 12 are connected；The liquid outlet of mobile hydraulic cylinder 15 passes through
Hydraulic hose 16 is connected to the liquid outlet of fixer cylinder pressure 17, and fixer cylinder pressure 17 is fixed on support platform 4 by supporting block 18
On；Described transmission connection 13 one end of plate is connected with the cylinder barrel of mobile hydraulic cylinder 15, and the other end is connected with bulb 14, and bulb 14 is same
It is welded on the ball angled seat flexural pivot connection of motion platform 3.Be connected to hydraulic mechanism 1 in by mobile hydraulic cylinder 15, fixer cylinder pressure 17,
Piston inside cylinder barrel is connected to oil circuit with what hydraulic oil pipe 16 formed.
As it can be seen in figures 5 and 6, the linear motion unit 2 includes servo motor 21, support plate 22, bearing 29, screw rod 23
The interconnecting piece that transmission mechanism, plate 25 and the link block 26 formed with screw 24 forms；The lead screw 23 passes through bearing 29
It is connected in support plate 22, the plate 25 of one end of lead screw and the output shaft fixed connection of servo motor 21, the interconnecting piece is connected
On screw 24, link block 26 is connected on 25, and fixed hydraulic cylinder piston rod 19 and link block 26 are connected, and support plate 22 is fixed on
In support platform.The linear motion unit 2 further includes the prismatic pair that trapezoidal slide block 27 and trapezoidal rails 28 form, described
Trapezoidal slide block 27 be connected in the lower end of screw 24, trapezoidal rails are fixed in support plate 22.
As shown in fig. 7, the transmission mechanism of the linear motion unit 2 includes link mechanism and retarder 213, connecting rod knot
One end of structure and fixed hydraulic cylinder piston rod 19 form revolute, the output shaft fixed connection of the other end and retarder 213, retarder
213 input shaft and the output shaft fixed connection of servo motor 21.The link mechanism is multi link or first connecting rod 211 and second
The double link that connecting rod 212 forms.
Embodiment 1:
The motor racing analog platform device that is electrically coupled using liquid of the present invention, analog automobile actually use work
Automobile pose variation under condition.The step of operating method for the motor racing analog platform device that liquid of the invention is electrically coupled, is such as
Under:
(1), as shown in figure 3, will be connected in hydraulic mechanism 1 by mobile hydraulic cylinder 15, inside fixer cylinder pressure 17, cylinder barrel
Being connected in oil circuit full of the hydraulic oil with certain pressure of forming of piston and hydraulic oil pipe 16；
(2), rotating forward and the revolving speed that 21 output shaft of servo motor is controlled by controller, in the effect of screw rod 23 and screw 24
Under, realize link block 26 with certain speed linear movement output, squeezed under the action of fixer cylinder pressure hydraulic stem 19 solid
The hydraulic oil determined in hydraulic cylinder 17 is flowed into mobile hydraulic cylinder 15 by hydraulic hose 16, and mobile hydraulic cylinder is driven to rise；
(3), reversion and the revolving speed that 21 output shaft of servo motor of linear motion unit 2 is controlled by controller, in screw rod
23 and screw 24 under the action of, realize link block 26 with certain speed linear movement output, in fixer cylinder pressure hydraulic stem
The hydraulic oil being connected in the mobile hydraulic cylinder 15 of hydraulic mechanism 1 is set to flow into fixer cylinder pressure by hydraulic hose 16 under the action of 19
In 15, mobile hydraulic cylinder decline is driven；
(4), watching for 4 linear motion units 2 is controlled according to certain running car pavement conditions by controller respectively
Motor 21 is taken, changes 15 output displacement of mobile hydraulic cylinder, change in displacement is transferred to by motion platform 3 by bulb 14；
(5), the angle and change in displacement of motion platform 3 are obtained by the displacement angle sensor 31 of motion platform 3.
Embodiment 2:
The operating method for the motor racing analog platform device that liquid of the invention is electrically coupled, its step are as follows:
(1), as shown in figure 3, will be connected in hydraulic mechanism 1 by mobile hydraulic cylinder 15, inside fixer cylinder pressure 17, cylinder barrel
Being connected in oil circuit full of the hydraulic oil with certain pressure of forming of piston and hydraulic oil pipe 16；
(2), rotating forward and the revolving speed that 21 output shaft of servo motor of linear motion unit 2 is controlled by controller, first
Under the action of connecting rod 211, second connecting rod 212 and retarder 213, realize that fixer cylinder pressure hydraulic stem 19 squeezes fixer cylinder pressure 17
Interior hydraulic oil is flowed into mobile hydraulic cylinder 15 by hydraulic hose 16, and mobile hydraulic cylinder is driven to rise；
(3), reversion and the revolving speed that 21 output shaft of servo motor of linear motion unit 2 is controlled by controller, first
Under the action of connecting rod 211, second connecting rod 212 and retarder 213, realize that fixer cylinder pressure hydraulic stem 19 extracts mobile hydraulic cylinder 15
Interior hydraulic oil flows into hydraulic oil in fixer cylinder pressure 15 by hydraulic hose 16, drives mobile hydraulic cylinder decline；
(4), watching for 4 linear motion units 2 is controlled according to certain running car pavement conditions by controller respectively
Motor 21 is taken, changes 15 output displacement of mobile hydraulic cylinder, change in displacement is transferred to by motion platform 3 by bulb 14；
(5), the angle and change in displacement of motion platform 3 are obtained by the displacement angle sensor 31 of motion platform 3.
In the present invention 4 connection hydraulic mechanism 1 mobile hydraulic cylinder 15 cylinder body according to four tires of automobile position
Relationship is connect with four angle points of motion platform 3 by flexural pivot, and the hydraulic stem 12 and support matched with mobile hydraulic cylinder 15 is flat
Platform 4 is fixedly connected；The cylinder body of the mobile hydraulic cylinder 15 of 4 connection hydraulic mechanisms 1 is fixed with the transmission mechanism of linear motion unit 2
Connection；Revolving speed by controlling the servo motor 21 of 4 linear motion units 2 realizes the Pose Control to motion platform 3, the dress
Set can the vehicle body pose of simulated automotive in the process of moving, without complicated electric system and hydraulic system.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art under the enlightenment of this specification, in the range for not departing from the claims in the present invention and being protected
In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (8)
1. a kind of motor racing analog platform device that liquid is electrically coupled, it is characterised in that: including motion platform (3), support platform
(4), 4 connection hydraulic mechanisms (1) and the linear motion unit (2) being fixed on support platform (4)；4 connection liquid
The cylinder barrel of the mobile hydraulic cylinder (15) of press mechanism (1) is connect with motion platform (3) by flexural pivot, the flexural pivot and motion platform
(3) positional relationship is consistent with the arrangement of vehicle body with automobile tire, is connected to the fixation of the fixer cylinder pressure (17) of hydraulic mechanism (1)
Hydraulic cylinder piston rod (19) is fixedly connected with the transmission mechanism of linear motion unit (2)；It is fixed on the motion platform (3)
Displacement angle sensor (31).
2. a kind of motor racing analog platform device that liquid is electrically coupled as described in claim 1, it is characterised in that: the company
Logical hydraulic mechanism (1) includes pedestal (11), movable hydraulic cylinder piston rod (12), transmission connection plate (13), bulb (14), mobile liquid
Cylinder pressure (15), hydraulic hose (16), fixer cylinder pressure (17), supporting block (18) and fixed hydraulic cylinder piston rod (19)；Described
The cylinder barrel of fixer cylinder pressure (15) and its internal piston and fixed hydraulic cylinder piston rod (19) form prismatic pair；Mobile hydraulic cylinder
(15) cylinder barrel and its internal piston and movable hydraulic cylinder piston rod (12) forms prismatic pair；Described pedestal (11) one end is solid
It is scheduled on support platform (4) be connected, the other end and movable hydraulic cylinder piston rod (12) are connected；The liquid outlet of mobile hydraulic cylinder (15)
It is connected to by hydraulic hose (16) with the liquid outlet of fixer cylinder pressure (17), fixer cylinder pressure (17) is fixed by supporting block (18)
On support platform (4)；The cylinder barrel of the same mobile hydraulic cylinder in transmission connection plate (13) one end (15) is connected, the same ball of the other end
Head (14) is connected, and bulb (14) is the same as the ball angled seat flexural pivot connection for being welded on motion platform (3).
3. a kind of motor racing analog platform device that liquid is electrically coupled as described in claim 1, it is characterised in that: described is straight
Line moving cell (2) includes the biography of servo motor (21), support plate (22), bearing (29), screw rod (23) and screw (24) composition
The interconnecting piece of motivation structure, plate (25) and link block (26) composition；The lead screw (23) is connected to branch by bearing (29)
On fagging (22), one end of lead screw and the output shaft fixed connection of servo motor (21), the plate (25) of the interconnecting piece are connected in
On screw (24), link block (26) is connected on (25), and fixed hydraulic cylinder piston rod (19) and link block (26) are connected, support plate
(22) it is fixed in support platform.
4. a kind of motor racing analog platform device that liquid is electrically coupled as claimed in claim 3, it is characterised in that: described is straight
Line moving cell (2) further includes the prismatic pair of trapezoidal slide block (27) and trapezoidal rails (28) composition, the trapezoidal slide block (27)
It is connected in the lower end of screw (24), trapezoidal rails are fixed on support plate (22).
5. a kind of motor racing analog platform device that liquid is electrically coupled as described in claim 1, it is characterised in that: described is straight
The transmission mechanism of line moving cell (2) includes link mechanism and retarder (213), and one end of link mechanism and fixer cylinder pressure are living
Stopper rod (19) forms revolute, the output shaft fixed connection of the other end and retarder (213), the input shaft and servo of retarder (213)
The output shaft fixed connection of motor (21).
6. a kind of motor racing analog platform device that liquid is electrically coupled as claimed in claim 5, it is characterised in that: the company
Rod structure is the double link of multi link or first connecting rod (211) and second connecting rod (212) composition.
7. a kind of motor racing analog platform device that liquid is electrically coupled as described in claim 1, it is characterised in that: described watches
Take motor (21), retarder (213) and controller control connection.
8. the test side based on the motor racing analog platform device being electrically coupled as described in claim 1 based on the liquid
Method, which is characterized in that steps are as follows:
(1) it will be connected in hydraulic mechanism 1 by the piston and hydraulic oil in mobile hydraulic cylinder 15, inside fixer cylinder pressure 17, cylinder barrel
Full of the hydraulic oil with certain pressure in the connection oil circuit that pipe 16 forms；
(2) servo motor of 4 linear motion units 2 is controlled respectively according to the running car pavement conditions of setting by controller
The steering of 21 output shafts and its revolving speed, transmission mechanism drive the forward or backward linear movement output of link block 26, fixer
Cylinder pressure hydraulic stem 19 pushes or pulls back forward 17 inner piston of fixer cylinder pressure, and hydraulic oil is flowed by hydraulic hose 16 and moved
In hydrodynamic cylinder pressure 15 or inflow fixer cylinder pressure 17, the cylinder barrel of mobile hydraulic cylinder 15 is driven to rise or decline；
And then the variation of 15 output displacement of mobile hydraulic cylinder is transferred to motion platform 3 by bulb 14；
(3) angle and change in displacement of motion platform 3 are obtained by the displacement angle sensor 31 on motion platform 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324121.6A CN109192051A (en) | 2018-11-08 | 2018-11-08 | A kind of motor racing analog platform device and method that liquid is electrically coupled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324121.6A CN109192051A (en) | 2018-11-08 | 2018-11-08 | A kind of motor racing analog platform device and method that liquid is electrically coupled |
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| CN109192051A true CN109192051A (en) | 2019-01-11 |
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ID=64942433
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811324121.6A Pending CN109192051A (en) | 2018-11-08 | 2018-11-08 | A kind of motor racing analog platform device and method that liquid is electrically coupled |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080724A (en) * | 2019-04-25 | 2019-08-02 | 托普威尔石油技术股份公司 | A kind of twin-well oil-pumping machine |
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