CN103186102A - Load simulation device for engineering machine and simulation equipment - Google Patents
Load simulation device for engineering machine and simulation equipment Download PDFInfo
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- CN103186102A CN103186102A CN2011104447059A CN201110444705A CN103186102A CN 103186102 A CN103186102 A CN 103186102A CN 2011104447059 A CN2011104447059 A CN 2011104447059A CN 201110444705 A CN201110444705 A CN 201110444705A CN 103186102 A CN103186102 A CN 103186102A
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Abstract
The invention provides a load simulation device for an engineering machine and simulation equipment. The trueness of load simulation is improved, and the simulation level of the simulation equipment is further raised. The load simulation device for the engineering machine comprises at least two load simulation units of the engineering machine, wherein one end of each load simulation unit is connected with a load connection port of a whole engineering machine controller; each load simulation unit comprises at least one electrical element simulating a load type of the engineering machine; and at least two load simulation units simulate different load types.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of load simulating device of engineering machinery and emulator.
Background technology
Engineering machinery is the general designation of the required necessary mechanized equipment of comprehensive mechanized construction engineering of a cubic meter construction work, road surface construction and maintenance, flow-type lifting loading and unloading operation and various construction work.Be mainly used in national defense construction engineering, communications and transportation construction, fields such as material industry construction such as energy industry construction and production, mine and production, agriculture, forestry, water conservancy construction, industry and covil construction, urban construction, environmental protection.
Engineering machinery needs very high security, but along with economic development to engineering machinery demand and multifarious increase, the production of engineering machinery needs again to shorten product development and construction cycle, so how product is carried out efficient and safe detection, become a problem in the engineering machinery production.
The emulator that engineering machinery is carried out Performance Detection is specialized gradually under the driving of this demand, and load simulation wherein is requisite part in these emulators.The really degree of load simulation has determined the emulation level of emulator, and prior art has and adopts the software simulation load, and the demand of load simulation really degree also has a certain distance relatively.
Summary of the invention
The invention provides a kind of load simulating device and emulator of engineering machinery, in order to improving the validity of load simulation, and further improve the emulation level of emulator.
A kind of load simulating device of engineering machinery, the load simulation unit that comprises at least two engineering machinery, wherein, each load simulation unit links to each other with the load connectivity port of engineering machinery entire car controller as a fictitious load, comprise the electrical equipment that at least one simulates a kind of engineering machinery load type in each load simulation unit, have at least the loadtype of two load simulation unit simulations inequality.
Wherein: the electrical equipment of described loadtype and the load of simulation respective type comprises two kinds in following three kinds at least:
The load of hydraulic buttery valve type comprises a hydraulic buttery valve in the load simulation unit of each simulated solution pressure electromagnetic valve type load;
The resistor-type load comprises at least one resistance in the load simulation unit of each simulated solution pressure electromagnetic valve type load; Perhaps
The relay-type load comprises a relay in the load simulation unit of each simulated solution pressure electromagnetic valve type load.
When the load simulation unit of simulated solution pressure electromagnetic valve type load is one or more, the circuit connecting relation of the hydraulic buttery valve in each load simulation unit is following a kind of:
Hydraulic buttery valve wire loop one end is used for connecting the positive-negative-positive port of engineering machinery entire car controller, and the other end is by load branch switch ground connection; Perhaps
Hydraulic buttery valve wire loop one end is used for connecting the NPN type port of engineering machinery entire car controller, and the other end is used for connecting external power source by the load branch switch.
And then each hydraulic buttery valve wire loop is also in parallel or be in series with the branch road status indicator lamp; And/or each hydraulic buttery valve wire loop also is parallel with one and holds the stream diode.
Further, the load simulation unit of analogue relay type load is one or more, and the circuit connecting relation of the relay in each load simulation unit is a kind of in following two kinds:
First kind: relay coil loop one end is used for connecting the positive-negative-positive port of engineering machinery entire car controller, and the other end is by branch switch ground connection;
Second kind: relay coil loop one end is used for connecting the NPN type port of engineering machinery entire car controller, and the other end is used for connecting external power source by branch switch.
Wherein, the load simulation unit of analogue relay type load is a plurality of, and wherein adopts the load simulation element number of first kind of annexation to be greater than or equal to the load simulation element number that adopts second kind of annexation.
In a kind of preferred embodiment, each adopts the load simulation unit of second kind of annexation and the load simulation unit of first kind of annexation of an employing to form one group, in this group, node is often opened in one of series connection on the wire loop of one of them relay, one of series connection and often open the normally closed node that node links on the wire loop of another relay.
And, often open branch road one termination power that forms behind the branch road status indicator lamp of connecting again after the node parallel connection, other end ground connection with two on two the different relays that lay respectively in a group.
In a kind of preferred embodiment, the wire loop of each relay branch road status indicator lamp of also connecting; Perhaps often open node one end connection power supply for one of each relay, the other end is by a branch road status indicator lamp ground connection.
In a kind of preferred embodiment, also be provided with the state-detection terminal in each load simulation unit.
The embodiment of the invention also provides the emulator that comprises above-mentioned load simulating device.
The load simulating device that the embodiment of the invention provides, utilize different electrical equipments to simulate the load of various common type, and be integrated in the load simulating device, each load branch can independently be controlled, and further be equipped with the status indicator lamp of each load branch, can also dispose switch and the status indicator lamp of whole load simulating device, the convenient load condition of observing in the simulation process has improved testing efficiency.The load simulating device that the embodiment of the invention is provided is applied on the emulator, can improve the simulation capacity of emulator.
Description of drawings
The load simulating device structural representation of first kind of engineering machinery that Fig. 1 provides for the embodiment of the invention;
The load simulating device structural representation of second kind of engineering machinery that Fig. 2 provides for the embodiment of the invention;
The load simulating device structural representation of the third engineering machinery that Fig. 3 provides for the embodiment of the invention;
The load simulating device structural representation of the 4th kind of engineering machinery that Fig. 4 provides for the embodiment of the invention;
The circuit connecting relation synoptic diagram of a concrete example of the load simulating device structure of the engineering machinery that Fig. 5 provides for the embodiment of the invention;
In the load simulating device of the engineering machinery that Fig. 6 provides for the embodiment of the invention, a kind of physical circuit annexation synoptic diagram of solenoid valve type load branch;
The synoptic diagram of the load simulating device testing engineering machinery entire car controller of the engineering machinery using the embodiment of the invention and provide is provided Fig. 7;
In the load simulating device of the engineering machinery that Fig. 8 provides for the embodiment of the invention, a kind of physical circuit annexation synoptic diagram of the relay-type load branch of negative sense control;
In the load simulating device of the engineering machinery that Fig. 9 provides for the embodiment of the invention, a kind of physical circuit annexation synoptic diagram of the solenoid valve type load that can between forward control load and negative sense control load, change;
The circuit connecting relation synoptic diagram of another concrete example of the load simulating device structure of the engineering machinery that Figure 10 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of load simulating device of engineering machinery, utilize the load of electrical equipment realistic simulation engineering machinery, and dissimilar fictitious loads is integrated on the load simulating device, the load of can real simulated dissimilar engineering machinery, improve the validity of load simulation, and further improved the emulation level of emulator.
As shown in Figure 1, the structural representation of the load simulating device 10 of a kind of engineering machinery that provides for the embodiment of the invention comprises:
The load simulation unit (111 of at least two engineering machinery, 112......11n), wherein, each load simulation unit (111,112......11n) link to each other with the load connectivity port of engineering machinery entire car controller as a fictitious load, for example in the circuit shown in Figure 1, load simulation unit (111,112......11n) an end be used for to connect the load connectivity port (121 of engineering machinery entire car controller, 122......12n), the other end is as grounding ports 13 ground connection, namely connect the GND end: wherein, each load simulation unit (111,112......11n) comprise the electrical equipment that at least one is used for a kind of engineering machinery load type of simulation, have at least the loadtype of two load simulation unit simulations inequality.
That is to say, in the load simulating device 10 of a kind of engineering machinery that the embodiment of the invention provides, be integrated with two or more load simulations unit, each load simulation unit is by one or more same type electrical equipments, this kind electrical equipment can model engineering machinery certain load, and in a load simulating device, need the load of at least two types of simulations, therefore according to the quantity of load simulation unit, different loads analogue unit simulation load type possibility is identical also may be inequality.
The loadtype of engineering machinery has a lot, for example hydraulic buttery valve type load, resistor-type load, relay-type load, and various pilot lamp and loudspeaker etc., wherein commonly usedly comprise the load of hydraulic buttery valve type, resistor-type load and relay-type load etc., accordingly: the electrical equipment that is used for the load of simulated solution pressure electromagnetic valve type is hydraulic buttery valve, a hydraulic buttery valve can be simulated a certain size hydraulic buttery valve type load, perhaps simulation load size as required utilizes a plurality of hydraulic buttery valve series, parallel or connection in series-parallel to form.
As shown in Figure 2, for independent each load simulation unit of control, each load simulation unit (111,112......11n) branch switch of also connecting (141,142......14n).Can utilize the independent control of branch switch on each load branch (141,142......14n) whether with the break-make of each bar load branch, to satisfy different load simulation demands like this.
As shown in Figure 3, in order to indicate the connection status of each load simulation unit, on the load branch that each load simulation unit and branch switch series connection form, the branch road status indicator lamp of also connecting (151,152......15n).
According to circuit shown in Figure 3, utilize the branch road status indicator lamp on each load branch, can observe the running status of load branch very easily, when load branch is connected, the branch road status indicator lamp is luminous, when load branch disconnected for some reason, the branch road status indicator lamp extinguished, and was conducive in time to find the fictitious load state in the dry run process.
As shown in Figure 4, for in the dry run process, the entire car controller of load simulating device 10 integral body from engineering machinery disconnected, the load simulating device 10 that the embodiment of the invention provides can also comprise a load switch 17, one end of each load branch is electrically connected the back and is connected to ground terminal GND by load switch 17, utilizes load switch 17 can control the break-make of whole load simulating device 10.
Still consult shown in Figure 4ly, can also be in series with a load condition pilot lamp 16 on the load switch 17, be used to indicate the overall work state of load simulating device 10.
As shown in Figure 5, it is the concrete example of the load simulating device that provides of an embodiment of the invention, in this example, schematically provided the hydraulic buttery valve 511 of simulated solution pressure electromagnetic valve type load, the physical circuit annexation of the relay 513 of the resistance 512 of analog electrical resistance type load and the load of analogue relay type in load simulating device, relay 513 control loops are connected to other circuit, for example load condition pilot lamp of series connection substitutes the load condition pilot lamp that is connected on the relay coil loop between two connection terminals of relay 513 normal opened contact, can judge the duty of relay equally.The load simulating device that the embodiment of the invention provides can also comprise a load switch 57, and an end of each load branch is electrically connected the back and is connected to ground terminal GND by load switch 57, utilizes load switch 57 can control the break-make of whole load simulating device.Can also be in series with a load condition pilot lamp 56 on the load switch 57, be used to indicate the overall work state of load simulating device.In this example, load condition pilot lamp 56 and each branch road status indicator lamp (551,552,553) adopt light emitting diode, switch on each load branch (541,542,543) can adopt manually operated switch, also can adopt the switch of automatic control.
As shown in Figure 6, another kind of circuit connecting relation synoptic diagram for the load branch of simulated solution pressure electromagnetic valve type load, hydraulic buttery valve 511 also can with light emitting diode 551 parallel connections, further contemplate hydraulic buttery valve 511 and be inductive load, for the big electric current that prevents power on/off moment generation works the mischief to entire car controller, can also be at each hydraulic buttery valve 511 two ends one in parallel hold stream diode 561, the wire loop of hydraulic buttery valve 511 and hold stream diode 561 and constitute holding of burst current and flow back to the road.
As shown in Figure 7, use view when the load simulating device practical application that provides for the embodiment of the invention inserts the engineering machinery entire car controller, each input and output IO port of the entire car controller of engineering machinery, can insert a load branch as a load access point, controller comes access and the disconnection of control load by the break-make of control IO port, to reach the purpose of logic control.Like this, the load simulating device that utilizes the embodiment of the invention to provide is realized the function of the load simulation of engineering machinery entire car controller, reaches the purpose of vehicle control unit controls logic.
The relay-type load of entire car controller and the load of hydraulic buttery valve type can be divided into two classes, and a class provides the forward control load of working power for entire car controller, and another kind of is by the negative sense control load of external power source as working power.The forward control load connects the positive-negative-positive IO port of entire car controller, positive-negative-positive IO port can provide positive operating voltage to load circuit, the other end ground connection of load branch, during load branch work, the direction of current on the branch road is the positive-negative-positive IO port outflow from entire car controller.The negative sense control load connects the NPN type IO port of entire car controller, and the other end connects external power source, and during load branch work, the direction of current on the branch road is for flowing into the positive-negative-positive IO port of entire car controller.
Hydraulic buttery valve type load shown in Fig. 7 is the hydraulic buttery valve type load of forward control, simulate the hydraulic buttery valve type load of negative sense control if desired, then as shown in Figure 8, load branch one end of hydraulic buttery valve type load connects the NPN type IO port of entire car controller, the other end connects external power source, and entire car controller can be realized access and the disconnection of load branch by the break-make of control IO port.The quantity of the load branch of the hydraulic buttery valve type load of simulation negative sense control shown in Figure 8 also can be set as required flexibly, and the switch in the circuit and light emitting diode role and circuit connecting relation no longer repeat as previously mentioned here.
The embodiment of the invention also further provides the hydraulic buttery valve type load that can change between forward load control load and negative sense control load, concrete annexation as shown in Figure 9, hydraulic buttery valve wire loop one end is used for connecting positive-negative-positive port or the external power source of engineering machinery entire car controller, the other end connects NPN port or the earth terminal GDN of engineering machinery entire car controller by load branch K switch c, like this, the positive-negative-positive port that connects the engineering machinery entire car controller when an end, during another termination GDN, be the forward control load, when an end connects external power source, during another termination engineering machinery entire car controller, be the negative sense control load.
Automatically gather the running status of load branch if desired, can also an automatic detection terminal be set at load branch, be used for connecting signal acquisition circuit DI, for example shown in Figure 9, can share an automatic detection terminal during as forward control load and negative sense control load, at this moment, the frequent close node Kb of one end connects automatic detection terminal: the DI terminals, and the other end connects the DI terminals through the node Ka that often opens of interlock, during as the forward control load, the Kb closure, Ka opens, during as the negative sense control load, and the Ka closure, Kb opens, and can confirm the duty of load branch by the voltage that detects the DI terminals.
According to above-mentioned example as can be known, in the analogue unit of simulated solution pressure electromagnetic valve type load, the circuit connecting relation of the hydraulic buttery valve in each load simulation unit in the analogue unit is following a kind of:
During simulation forward control load: hydraulic buttery valve wire loop one end is used for connecting the positive-negative-positive port of engineering machinery entire car controller, and the other end is by load branch switch ground connection; Perhaps
During simulation negative sense control load: hydraulic buttery valve wire loop one end is used for connecting the NPN type port of engineering machinery entire car controller, and the other end is used for connecting external power source by the load branch switch.
Further, hydraulic electromagnetic valve coil one end connects automatic detection terminal by often opening node, the other end by with the automatic detection terminal of normally closed node ground connection of often opening node interlock.
In the relay-type load, the circuit connecting relation of the relay in each load simulation unit is a kind of in following two kinds: first kind: relay coil loop one end is used for connecting the positive-negative-positive port of engineering machinery entire car controller, the other end is simulated the relay-type load of forward control by branch switch ground connection; Second kind: relay coil loop one end is used for connecting the NPN type port of engineering machinery entire car controller, and the other end is used for connecting external power source by branch switch, the relay-type load of simulation negative sense control.And generally speaking, adopt the load simulation element number of first kind of annexation to be greater than or equal to the load simulation element number that adopts second kind of annexation.And two types relay-type load generally can not insert simultaneously, and therefore, that can utilize a pair of interlock often opens node and normally closed node, jointly control the relay-type load of one group of forward control and negative sense control the relay-type load.That is: each adopts the load simulation unit of second kind of annexation and the load simulation unit of first kind of annexation of an employing to form one group, be arranged in two relays of one group, node is often opened in one of series connection on the wire loop of one of them relay, one of series connection and often open the normally closed node that node links on the wire loop of another relay.
As shown in figure 10, the entire car controller load simulating device that provides for the embodiment of the invention another concrete example, in this concrete example:
The hydraulic buttery valve type load of hydraulic buttery valve Y1～Y4 for changing between forward load control load and negative sense control load, annexation sees that the physical circuit of Y1, hydraulic buttery valve Y5～Y14 forward load control load, resistance R 1～R10 are that resistor-type load, relay K A are the relay-type load.
In above-mentioned example, what need further specify is:
The group relay type load that KA1 and KA11 form, its relay coil loop is by the control of often opening node K1 and normally closed node K2 of two interlocks, can be when the forward control load inserts, guarantee the disconnection of negative sense control load, otherwise when the negative sense control load inserts, guarantee the disconnection of forward control load.In the sort circuit, the branch road status indicator lamp can be shared, for example shown in Figure 10, lay respectively on two the different relays in a group two and often open branch road one termination power that forms behind the branch road status indicator lamp of connecting again after the node parallel connection, other end ground connection.
On each load simulation unit an automatic detection terminal can also be set, DI terminals on each load branch among Figure 10 for example, be used for connecting the DI Acquisition Circuit that detects the load branch duty automatically, DI can gather the voltage on the load branch automatically, and testing result is transferred to the load detecting system, realize the automatic monitoring of fictitious load running status.
On each load simulation unit a manual detection terminal can also be set, for example symbol is among Figure 10
Connection terminal, be convenient to connect measurement instrument such as multimeter and survey voltage, utilize detected magnitude of voltage to judge the duty of load simulation unit.
In addition, because of the belt current of relay contact limited in one's ability, the load simulation unit in the load device more for a long time, total current is bigger, so the load master switch can shunt with multiconductor, for example the KM1 among Figure 10.
The quantity that the load simulating device that the embodiment of the invention provides can be ordered according to the I/O I/O of the entire car controller of engineering machinery is determined the quantity of load branch, and is determined the dissimilar numbers shared in the total quantity that load on as required.For example in a concrete example, 14 hydraulic buttery valves, 10 resistance and 14 relays can be set, entire car controller offers the service area of load branch can select direct current 9～36V etc.
The load simulating device that the embodiment of the invention provides, utilize different electrical equipments to simulate the load of various common type, and be integrated in the load simulating device, each load branch can independently be controlled, and further be equipped with the status indicator lamp of each load branch and switch and the status indicator lamp of whole load simulating device, conveniently observe the load condition in the simulation process.Obviously, the load simulating device that provides of the embodiment of the invention effectively raises validity and the testing efficiency of load simulating device.The emulator of the load simulating device that the application embodiment of the invention provides compared to existing technology, has higher emulation level.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (13)
1. the load simulating device of an engineering machinery, it is characterized in that, the load simulation unit that comprises at least two engineering machinery, wherein, each load simulation unit links to each other with the load connectivity port of engineering machinery entire car controller as a fictitious load, comprise the electrical equipment that at least one simulates a kind of engineering machinery load type in each load simulation unit, have at least the loadtype of two load simulation unit simulations inequality.
2. load simulating device as claimed in claim 1 is characterized in that, the electrical equipment of described loadtype and the load of simulation respective type comprises two kinds in following three kinds at least:
The load of hydraulic buttery valve type comprises a hydraulic buttery valve in the load simulation unit of each simulated solution pressure electromagnetic valve type load;
The resistor-type load comprises at least one resistance in the load simulation unit of each simulated solution pressure electromagnetic valve type load; Perhaps
The relay-type load comprises a relay in the load simulation unit of each simulated solution pressure electromagnetic valve type load.
3. load simulating device as claimed in claim 2 is characterized in that, the load simulation unit of simulated solution pressure electromagnetic valve type load is one or more, and the circuit connecting relation of the hydraulic buttery valve in each load simulation unit is following a kind of:
Hydraulic buttery valve wire loop one end is used for connecting the positive-negative-positive port of engineering machinery entire car controller, and the other end is by load branch switch ground connection; Perhaps
Hydraulic buttery valve wire loop one end is used for connecting the NPN type port of engineering machinery entire car controller, and the other end is used for connecting external power source by the load branch switch.
4. load simulating device as claimed in claim 3 is characterized in that, hydraulic electromagnetic valve coil one end connects automatic detection terminal by often opening node, and the other end is by being connected automatic detection terminal with the normally closed node of often opening the node interlock.
5. load simulating device as claimed in claim 3 is characterized in that, each hydraulic buttery valve wire loop is also in parallel or be in series with the branch road status indicator lamp; And/or
Each hydraulic buttery valve wire loop also is parallel with one and holds the stream diode.
6. load simulating device as claimed in claim 2 is characterized in that, the load simulation unit of analogue relay type load is one or more, and the circuit connecting relation of the relay in each load simulation unit is a kind of in following two kinds:
First kind: relay coil loop one end is used for connecting the positive-negative-positive port of engineering machinery entire car controller, and the other end is by branch switch ground connection;
Second kind: relay coil loop one end is used for connecting the NPN type port of engineering machinery entire car controller, and the other end is used for connecting external power source by branch switch.
7. load simulating device as claimed in claim 6, it is characterized in that, the load simulation unit of analogue relay type load is a plurality of, and wherein adopts the load simulation element number of first kind of annexation to be greater than or equal to the load simulation element number that adopts second kind of annexation.
8. load simulating device as claimed in claim 7, it is characterized in that, each adopts the load simulation unit of second kind of annexation and the load simulation unit of first kind of annexation of an employing to form one group, be arranged in two relays of one group, node is often opened in one of series connection on the wire loop of one of them relay, one of series connection and often open the normally closed node that node links on the wire loop of another relay.
9. load simulating device as claimed in claim 8 is characterized in that, often opens branch road one termination power that forms behind the branch road status indicator lamp of connecting again after the node parallel connection, other end ground connection with two on two the different relays that lay respectively in a group.
10. as claim 6,7 or 8 described load simulating devices, it is characterized in that the wire loop of each relay branch road status indicator lamp of also connecting; Perhaps
Often open node one end for one of each relay and connect power supply, the other end is by a branch road status indicator lamp ground connection.
11. as claim 1～3,5～10 arbitrary described load simulating devices, it is characterized in that, also be provided with automatic detection terminal in each load simulation unit.
12. load simulating device as claimed in claim 11 is characterized in that, also is provided with manual detection terminal in each load simulation unit.
13. an emulator is characterized in that, comprises the arbitrary described load simulating device of claim 1～12.
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| CN109542090A (en) * | 2018-12-25 | 2019-03-29 | 北斗航天汽车（北京）有限公司 | Entire car controller simulator experimental rig |
| CN109782740A (en) * | 2019-01-30 | 2019-05-21 | 中国人民解放军32181部队 | A kind of trouble diagnosibility evaluation test simulator and system |
| CN116400145A (en) * | 2023-01-05 | 2023-07-07 | 宁德时代新能源科技股份有限公司 | Test method, system, device and storage medium |
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| CN102243499A (en) * | 2011-04-29 | 2011-11-16 | 金龙联合汽车工业（苏州）有限公司 | Hardware function test box for hybrid vehicle controller |
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| US20070282458A1 (en) * | 2006-05-30 | 2007-12-06 | Takahiro Yamada | Control apparatus, control method and monitoring control system |
| CN201780506U (en) * | 2010-06-28 | 2011-03-30 | 北京经纬恒润科技有限公司 | Test equipment for testing electronic controller |
| CN102156459A (en) * | 2011-01-18 | 2011-08-17 | 同济大学 | Simulation loading device for whole-vehicle controller |
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| CN109542090A (en) * | 2018-12-25 | 2019-03-29 | 北斗航天汽车（北京）有限公司 | Entire car controller simulator experimental rig |
| CN109782740A (en) * | 2019-01-30 | 2019-05-21 | 中国人民解放军32181部队 | A kind of trouble diagnosibility evaluation test simulator and system |
| CN116400145A (en) * | 2023-01-05 | 2023-07-07 | 宁德时代新能源科技股份有限公司 | Test method, system, device and storage medium |
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| CN103186102B (en) | 2015-12-02 |
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