CN101556470B - Microcomputer control system of electric-wheel truck - Google Patents
Microcomputer control system of electric-wheel truck Download PDFInfo
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- CN101556470B CN101556470B CN2009100839398A CN200910083939A CN101556470B CN 101556470 B CN101556470 B CN 101556470B CN 2009100839398 A CN2009100839398 A CN 2009100839398A CN 200910083939 A CN200910083939 A CN 200910083939A CN 101556470 B CN101556470 B CN 101556470B
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Abstract
The invention relates to a microcomputer control system of an electric-wheel truck, comprising a microcomputer control device and a display device; the microcomputer control device comprises a bottom plate and a plurality of plug-in plates which are connected with the bottom plate; a control plate comprises a digital signal processor, a programmable logic device, a plurality of AD converters, a plurality of storages and a communication interface; the AD converters convert analog quantity of the electric-wheel truck into digital quantity; and the digital signal processor respectively controls the programmable logic device, the AD converters, the storages and the communication interface, simultaneously receives the data of the programmable logic device and the AD converters, operates the transmitted data, sends operated results to the display device for display by the RS485 communication interface and correspondingly transmits the data to an output plate and a DA plate for delivering data quantity for output so as to control the electric-wheel truck. The microcomputer control system improves the using performance of the electric-wheel truck, reduces production cost and has the advantages of simple structure and simple and convenient repairing.
Description
Technical field
The present invention relates to electric wheel truck, particularly about a kind of 170t microcomputer control system of electric-wheel truck that is applicable to.
Background technology
At present domestic tens families use the unit of electric wheel truck mainly to be distributed in industry and large hydraulic engineerings such as metallurgy, coal, and dead weight capacity mainly is about hundred tons, and in order to pursue production efficiency, user's preferences uses the bigger electric wheel truck of dead weight capacity.Along with the increase of mining scale and the construction of great hydraulic engineering, the demand percentage of large-tonnage electric wheel truck constantly increases in recent years.The main dependence on import of electric wheel truck, along with the automobile increase of tenure of use, status of equipment is aging gradually, and the performance of its control panel descends to some extent, causes the vehicle failure rate to increase; The price height of control panel, procurement cycle are grown in addition and big, the especially most crucial central processing unit plate of reparation difficulty, its complex structure, cost an arm and a leg, domesticly can't repair the operating cost height at all, directly restricting the operating rate of automobile, so the production domesticization of electric wheel truck control system is extremely urgent.By the end of so far, domestic have two companies to develop microcomputer control system of electric-wheel truck, but all be only applicable to the following electric wheel truck of load-carrying 154t.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of simple in structure, performance is high, be easy to repair, cost is low and suitable 170t electric wheel truck control system.
For achieving the above object, the present invention takes following technical scheme: a kind of microcomputer control system of electric-wheel truck is characterized in that comprising: a computer control device and a display device; Described computer control device comprises a base plate and coupled polylith plug-in card; Described plug-in card comprises: polylith AD plate, a control panel, polylith DA plate, a frequency template, polylith digital quantity tablet, polylith digital quantity output board and a power panel; Wherein, described control panel comprises a digital signal processor, a programmable logic device (PLD), a plurality of AD converter, a plurality of storer and a communication interface; Described AD converter is converted to digital quantity with the electric wheel truck analog quantity of collection of described AD plate and conditioning; Each signal conveys that described frequency template and digital quantity tablet are gathered is given described programmable logic device (PLD); Described digital signal processor is controlled described programmable logic device (PLD), AD converter, storer and communication interface respectively, receive the data that described programmable logic device (PLD) and AD converter are carried simultaneously, and the data of carrying are carried out computing, and the result of computing is sent to described display device by described RS485 communication interface shows, the while correspondence flows to described conveying digital quantity output board and the DA plate is exported, with the control electric wheel truck.
Described digital signal processor comprises: an EEPROM controlling sub, read or store electricity driving wheel automobile parameter information; One serial communication submodule sends to described display device with the parameter current information of electric wheel truck and shows; One semi-invariant calculating sub module, the semi-invariant of calculating electric wheel truck; One major cycle module is called described EEPROM controlling sub, serial communication submodule and semi-invariant calculating sub module successively; One AD submodule is used to control described AD converter the analog quantity of the electric wheel truck of collection of described AD plate and conditioning is converted to digital quantity; One I/O submodule is used to control the digital quantity that described digital quantity tablet is gathered electric wheel truck; One frequency quantity is gathered submodule, is used to control the speed-frequency amount that described frequency template is gathered electric wheel truck diesel engine and traction electric machine; One data computation submodule, the speed-frequency amount according to the digital quantity and the frequency plate of described AD converter conveying are carried calculates analog quantity, the current speed of a motor vehicle and the diesel engine speed value of electric wheel truck; One logic control submodule is according to the digital quantity that described digital quantity tablet is carried, the digital quantity of logical calculated electric wheel truck current working and required output thereof; One traction and braking controlling sub are carried out the PI computing according to the electric wheel truck operating mode that the logic control submodule calculates to the analog quantity that described data computation submodule calculates; One DA submodule is converted into analog control signal by described DA plate with the result of described PI computing, the traction and the braking of control electric wheel truck; One fault detect and processing sub in time detect and judge the electric wheel truck fault; One master timer interrupt module calls described AD submodule, I/O submodule, frequency quantity collection submodule, data computation submodule, logic control submodule, DA submodule, traction control submodule, braking controlling sub and fault detect and processing sub successively.
Communication interface in the described control panel adopts a RS85 communication interface, and described control panel also comprises a RS232 communication interface.
Described display device is for showing electric wheel truck operational factor, semi-invariant and failure message, and checks 10.4 inches color liquid crystal touch display screens that electric wheel truck operational factor that electric wheel truck automobile historical failure record and fault write down when taking place is used.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, because computer control device of the present invention adopts dongle configuration, be convenient to fault eliminating and maintenance, change veneer, needn't change a whole set of computer control device, therefore greatly reduce maintenance cost, and be easy to repair.2, because the present invention has adopted the big processor and the various reliable control module in space of fast operation and internal memory, so the control accuracy height, the function extending space is big.3, because the present invention has adopted programmable logic device (PLD) to carry out the external circuit design, programmable logic device (PLD) rolls into one many logic functions, has simplified the periphery circuit design of digital signal processor greatly.4, because eeprom memory of the present invention adopts is ferroelectric memory, therefore reading of data at once after the present invention can realize writing continuously and writing by eeprom memory, be different from general eeprom memory and need write latent period, guarantee data hold time under the power-down conditions greater than 10 years, and easy to operate.5, because the present invention has adopted the color liquid crystal touch display screen of Chinese demonstration, it can show electric wheel truck operational factor, semi-invariant and failure message in real time, the vehicle operating parameter of record in the time of can also checking that automobile historical failure record and fault take place by touch display screen simultaneously, therefore the driver can understand, analyze the current operational factor of electric wheel truck at a glance, is convenient in time fix a breakdown.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a control panel circuit diagram of the present invention
Fig. 3 is the structured flowchart of major cycle module in the digital signal processor of the present invention
Fig. 4 is the structured flowchart of master timer interrupt module in the digital signal processor of the present invention
Fig. 5 is a major cycle module workflow diagram of the present invention
Fig. 6 is a master timer interrupt module workflow diagram of the present invention
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention includes a computer control device 1 and a display device 2.Wherein, computer control device 1 can adopt standard 3U cabinet pattern, and it comprises a base plate 3 and polylith plug-in card.Wherein base plate 3 is the circuit boards with a plurality of slots, and each plug-in card is connected with base plate 3 by slot and carries corresponding signal.Each plug-in card that is plugged on the base plate 3 comprises: two AD plates, 4, one control panels 5, a DA plate 6, a frequency template 7, three digital quantity tablets 8, three digital quantity output boards 9 and a power panel 10.
As shown in Figure 2, in the foregoing description, control panel 5 comprises a digital signal processor (digital signalprocessor, DSP) 11, one programmable logic device (PLD) (Complex Programable Logic Device, CPLD) 12, three AD converter 13, a RS485 communication interface 14, a RS232 communication interface 15, a RAM storer 16 and an eprom memory 17.Wherein, digital signal processor 11 is controlled programmable logic device (PLD) 12, three AD converter 13, RS485 communication interface 14, RS232 communication interface 15, RAM storer 16 and eprom memory 17 respectively, digital signal processor 11 receives the data of programmable logic device (PLD) 12 and AD converter 13 conveyings simultaneously, and the data of carrying are carried out computing, and the result of computing is sent to display device 2 by RS485 communication interface 14 shows, the while correspondence flows to digital quantity output board 9 and DA plate 6 is exported, thus the control electric wheel truck.In the present embodiment, digital signal processor 11 can adopt 32 high-performance digital signal processor TMS320F2812 of TI company.
Programmable logic device (PLD) 12 is connected with digital quantity tablet 8 with frequency template 7 respectively, programmable logic device (PLD) 12 carries out calculation process for digital signal processor 11 data delivery of frequency template 7 and 8 inputs of digital quantity tablet under digital signal processor 11 control actions.Programmable logic device (PLD) 12 is mainly finished the collection of 7 pairs of electric wheel truck frequency quantity of frequency template, the collection of three digital quantity tablets, 8 switch amount, the output and the generation of external unit chip selection logic of digital quantity output board 9 switch amount.Programmable logic device (PLD) 12 has in system programmable (In-System Programming, ISP) function.
Three AD converter 13 connect two AD plates 4, and AD converter 13 is converted to digital quantity with the analog quantity of AD plate 4 outputs and flows to digital signal processor 11 and carry out calculation process.RS485 communication interface 14 is used for the data transmission between digital signal processor 11 and the display device 2, and RS232 communication interface 15 is used for expanded function.RAM storer 16 is used for the process data of stored programme generation in service.In the present embodiment, RAM storer 16 can adopt 256K * 16, static and by the RAM chip of 3.3V power supply power supply at a high speed.Eeprom memory 17 is used to store fault record, fault frequency and the semi-invariant of electric wheel truck.Semi-invariant comprises: diesel engine operation T.T., diesel engine operation T.T. this month, diesel engine working time on the same day, automobilism total kilometrage, automobile this month operation total kilometrage, this operation total kilometrage of automobile.In the present embodiment, eeprom memory 17 adopts ferroelectric memory, also can adopt other storer, does not limit at this.
In the foregoing description, be provided with major cycle module 18, master timer interrupt module 19, EEPROM controlling sub 20, serial communication submodule 21, semi-invariant calculating sub module 22, AD submodule 23, DA submodule 24, I/O submodule 25, frequency quantity collection submodule 26, data computation submodule 27, logic control submodule 28, traction control submodule 29, braking controlling sub 30 and fault detect and processing sub 31 in the digital signal processor 11.As shown in Figure 3, major cycle module 18 can be called EEPROM controlling sub 20, serial communication submodule 21 and semi-invariant calculating sub module 22 successively.As shown in Figure 4, master timer interrupt module 19 can timesharing call AD submodule 23, DA submodule 24, I/O submodule 25, frequency quantity collection submodule 26, data computation submodule 27, logic control submodule 28, traction control submodule 29, braking controlling sub 30 and fault detect and processing sub 31.
As shown in Figure 5, the step that major cycle module 18 is called each submodule is as follows:
(1) system initialization: after system's energized, at first carry out inside and outside port initialization.
(2) parameter reading and writing and storage: when major cycle module 18 was called EEPROM controlling sub 20, the parameter of 15 pairs of electric wheel trucks of digital signal processor 11 control eeprom memories read or stores.If current electric wheel truck breaks down, eeprom memory 15 is preserved current electric wheel truck correlation parameter information.
(3) call serial communication submodule 20: when major cycle module 18 is called serial communication submodule 20, digital signal processor 11 sends to display device 2 by RS485 communication interface 14 with the parameter current information of electric wheel truck and shows that the user can observe the parameter current information of electric wheel truck by display device 2.
(4) car load accumulative total calculation of parameter: when major cycle module 18 is called semi-invariant calculating sub module 22, digital signal processor 11 calculates the semi-invariant of an electric wheel truck every 1s, such as diesel engine operation T.T., operation T.T. this month, when day operation T.T., electric wheel truck operation total kilometrage, this month operation total kilometrage, this moves total kilometrage.
As shown in Figure 6, to call the step of each submodule as follows for master timer interrupt module 19:
1) data acquisition: when AD submodule 23, I/O submodule 25 and frequency quantity collection submodule 26 are called in 19 timesharing of master timer interrupt module, the analog quantity that AD converter 13 is gathered AD plate 4 is converted to digital quantity, digital quantity tablet 8 is gathered the digital quantity of electric wheel truck, the speed-frequency amount that frequency template 7 is gathered electric wheel truck diesel engine and traction electric machine.
2) data computation: when master timer interrupt module 19 calls data computation submodule 27, the speed-frequency amount that digital signal processor 11 is carried according to the digital quantity and the frequency template 7 of AD converter 13 conveyings, calculate analog quantity, the current speed of a motor vehicle and the diesel engine speed value of electric wheel truck, wherein the current speed of a motor vehicle of electric wheel truck and the diesel engine speed value parameter current information that is electric wheel truck.
3) logical operation: during master timer interrupt module 19 calling logic controlling sub 28, digital signal processor 11 carries out logical calculated according to the digital quantity that digital quantity tablet 8 collects, and calculate the operating mode of current electric wheel truck and the digital quantity of required output thereof, flow to digital quantity output board 9.
4) traction braking control: master timer interrupt module 19 calls traction control submodule 29 and braking controlling sub 30 earlier, and digital signal processor 11 is according to step 2) and 3) in the result that calculates carry out the PI computing again; Master timer interrupt module 19 calls DA submodule 24 then, the result of the PI computing that DA plate 6 is carried digital signal processor 11 is converted into analog control signal and exports to electric wheel truck, be that exciter current of generator or the weak magnetoelectricity that digital signal processor 11 is regulated on the electric wheel truck by the control signal of DA plate 6 outputs flows, realize traction or electric braking control electric wheel truck.
5) fault diagnosis: master timer interrupt module 19 calls fault detect and processing sub 31, and digital signal processor 11 is in time judged the electric wheel truck fault, if it is serious to judge fault, then controls the electric wheel truck automatic stopping.
In the foregoing description, communicate by RS485 communication interface 14 between display device 2 and the computer control device 1.The user can pass through display device 2, understands the electric wheel truck operating mode, the speed of a motor vehicle, diesel engine speed, water temperature, the rotating speed of two traction electric machines and voltage, failure message, the voltage and current of two braking resistance, the voltage of two rectifiers, traction current, stalling current, braking exciting current, contactor state, two shunt electric currents, exciter current of generator, generator power, engine oil pressure, lift-off pressures, steering pressure, diesel engine operation T.T., diesel engine operation T.T. this month, diesel engine is when day operation T.T., car movement, vehicle this month operation total kilometrage, this operation total kilometrage of vehicle.Simultaneously, the electric wheel truck parameter when the historical failure record of electric wheel truck and fault take place be can also check, fault eliminating and fault statistics analysis are convenient to.In the present embodiment, display device 2 can adopt 10.4 inches color liquid crystal touch display screens.
The above only is preferred embodiment of the present invention, and the present invention is not limited in above-mentioned embodiment, and all equivalent structure transformations of doing according to instructions of the present invention, claims and accompanying drawing all should be included in the scope of patent protection of the present invention.
Claims (4)
1. a microcomputer control system of electric-wheel truck is characterized in that comprising: a computer control device and a display device; Described computer control device comprises a base plate and coupled polylith plug-in card; Described plug-in card comprises: polylith AD plate, a control panel, polylith DA plate, a frequency template, polylith digital quantity tablet, polylith digital quantity output board and a power panel;
Wherein, described control panel comprises a digital signal processor, a programmable logic device (PLD), a plurality of AD converter, a plurality of storer and a communication interface; Described AD converter is converted to digital quantity with the electric wheel truck analog quantity of collection of described AD plate and conditioning; Each signal conveys that described frequency template and digital quantity tablet are gathered is given described programmable logic device (PLD);
Described digital signal processor is controlled described programmable logic device (PLD), AD converter, storer and communication interface respectively, receive the data that described programmable logic device (PLD) and AD converter are carried simultaneously, and the data of carrying are carried out computing, and the result of computing is sent to described display device by a RS485 communication interface shows, the while correspondence flows to described digital quantity output board and the DA plate is exported, with the control electric wheel truck.
2. a kind of according to claim 1 microcomputer control system of electric-wheel truck, it is characterized in that: described digital signal processor comprises:
One EEPROM controlling sub reads or store electricity driving wheel automobile parameter information;
One serial communication submodule sends to described display device with the parameter current information of electric wheel truck and shows;
One semi-invariant calculating sub module, the semi-invariant of calculating electric wheel truck;
One major cycle module is called described EEPROM controlling sub, serial communication submodule and semi-invariant calculating sub module successively;
One AD submodule is used to control described AD converter the analog quantity of the electric wheel truck of collection of described AD plate and conditioning is converted to digital quantity;
One I/O submodule is used to control the digital quantity that described digital quantity tablet is gathered electric wheel truck;
One frequency quantity is gathered submodule, is used to control the speed-frequency amount that described frequency template is gathered electric wheel truck diesel engine and traction electric machine;
One data computation submodule, the speed-frequency amount according to the digital quantity and the frequency plate of described AD converter conveying are carried calculates analog quantity, the current speed of a motor vehicle and the diesel engine speed value of electric wheel truck;
One logic control submodule is according to the digital quantity that described digital quantity tablet is carried, the digital quantity of logical calculated electric wheel truck current working and required output thereof;
One traction and braking controlling sub are carried out the PI computing according to the electric wheel truck operating mode that the logic control submodule calculates to the analog quantity that described data computation submodule calculates;
One DA submodule is converted into analog control signal by described DA plate with the result of described PI computing, the traction and the braking of control electric wheel truck;
One fault detect and processing sub in time detect and judge the electric wheel truck fault;
One master timer interrupt module calls described AD submodule, I/O submodule, frequency quantity collection submodule, data computation submodule, logic control submodule, DA submodule, traction control submodule, braking controlling sub and fault detect and processing sub successively.
3. a kind of as claimed in claim 1 or 2 microcomputer control system of electric-wheel truck is characterized in that: the communication interface in the described control panel adopts a RS485 communication interface, and described control panel also comprises a RS232 communication interface.
4. a kind of as claimed in claim 1 or 2 microcomputer control system of electric-wheel truck, it is characterized in that: described display device is for showing electric wheel truck operational factor, semi-invariant and failure message, and checks 10.4 inches color liquid crystal touch display screens that electric wheel truck operational factor that electric wheel truck automobile historical failure record and fault write down when taking place is used.
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CN2009100839398A CN101556470B (en) | 2009-05-11 | 2009-05-11 | Microcomputer control system of electric-wheel truck |
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CN2009100839398A CN101556470B (en) | 2009-05-11 | 2009-05-11 | Microcomputer control system of electric-wheel truck |
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CN101556470B true CN101556470B (en) | 2011-08-31 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6956470B1 (en) * | 1999-09-03 | 2005-10-18 | Volkswagen Ag | Method and device for actively assisting a motor vehicle driver in a motor vehicle |
CN1709742A (en) * | 2005-07-07 | 2005-12-21 | 沈阳理工大学 | Mixed power electric automobile assembly control system |
CN1932703A (en) * | 2006-09-21 | 2007-03-21 | 中国南车集团株洲电力机车研究所 | Full-car central control unit for mixed power electric motor car |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6956470B1 (en) * | 1999-09-03 | 2005-10-18 | Volkswagen Ag | Method and device for actively assisting a motor vehicle driver in a motor vehicle |
CN1709742A (en) * | 2005-07-07 | 2005-12-21 | 沈阳理工大学 | Mixed power electric automobile assembly control system |
CN1932703A (en) * | 2006-09-21 | 2007-03-21 | 中国南车集团株洲电力机车研究所 | Full-car central control unit for mixed power electric motor car |
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