CN105699895A - Variable loading test system and method for monoblock type alternating current generator - Google Patents
Variable loading test system and method for monoblock type alternating current generator Download PDFInfo
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- CN105699895A CN105699895A CN201610081955.3A CN201610081955A CN105699895A CN 105699895 A CN105699895 A CN 105699895A CN 201610081955 A CN201610081955 A CN 201610081955A CN 105699895 A CN105699895 A CN 105699895A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a variable loading test system and method for a monoblock type alternating current generator. The system comprises an engine rack testing device, a data acquisition module and a data processing and implementing module. According to the variable loading test system and method for the monoblock type alternating current generator, a loading value of a carrying engine can be automatically adjusted as required according to real time operation condition of the engine.
Description
Technical field
The present invention relates to automobile bench test technical field, be specially a kind of variable load test system of integral alternator and test method thereof。
Background technology
When existing integral alternator carries out load test, use loading equipemtn that electromotor can only be fixed value to load, namely electromotor heap(ed) capacity size can not be adjusted according to electromotor real time execution operating mode, such load test method has the disadvantage that 1) user is in reality car process, and the fixing heap(ed) capacity of long-time consumption does not meet the actually used situation of automobile；2), in load test, integral alternator can not be examined its time-dependent current fan-out capability only according to fixed value loading；3) in electromotor complete machine stand reliability test process, fixing loading equipemtn can not set the highest/minimum running voltage, did not have/under-voltage, overtemperature alarm and defencive function；4) in the bench test room powered by vehicular power-bottle, when engine stop operates, fixing load test equipment continues to consume Bench Test System electricity and is unfavorable for that electric power system remains stable。
Summary of the invention
Present invention aims to the deficiency of existing load test equipment, it is provided that a kind of pilot system and method thereof that according to electromotor real time execution operating mode, the electromotor heap(ed) capacity carried can be adjusted on request automatically loaded value。
The variable load test system of integral alternator of the present invention, process including engine bench test device, data acquisition module and data and implement module, wherein, the input of described data acquisition module is connected with the output port of engine bench test device, rotating speed when gathering electromotor real time execution, moment of torsion, power and accelerator open degree；Described data process enforcement module and include industrial computer and programmable electronic load, the outfan of data acquisition module processes, with data, the industrial computer implementing module and is connected, industrial computer receives according to controlling logic decision electromotor real time execution operating mode after signal, and sends command signal according to real-time working condition to programmable electronic load；Described engine bench test device is loaded by described programmable electronic load according to the command signal received。
Preferably, also including protection module, described protection module includes the temperature sensor of monitoring programmable electronic load internal operating temperature, and the signal of described temperature sensor is sent to industrial computer。
Preferably, described data acquisition module includes CAN signal and gathers port and CAN signal analyser, described CAN signal gathers port and accesses engine bench test device, and the CAN interface series connection CAN signal of CAN signal analyser gathers port, and the USB interface of CAN signal analyser accesses industrial computer。
Preferably, described data process enforcement module and also include network adapter and RS232 network commutator, the network port of described industrial computer connects network adapter, the output network interface series connection RS232 network commutator of network adapter, described RS232 network commutator passes through connection programmable electronic load, and the both positive and negative polarity of described programmable electronic load connects engine bench test device。
Preferably; described protection module also includes digital multimeter and audible-visual annunciator; the temperature signal input digital multimeter that described temperature sensor gathers, temperature signal is fed back to industrial computer through network adapter by digital multimeter, and described audible-visual annunciator is connected with industrial computer。
The variable load test method of integral alternator of the present invention, it is in that the rotating speed during CAN signal collection port processing electromotor real time execution in data acquisition module, moment of torsion, power and accelerator open degree, the electromotor real time execution signal collected is passed through CAN and usb protocol conversion output usb signal to industrial computer by CAN signal analyser, industrial computer receives after signal according to controlling logic decision electromotor real time execution operating mode, and according to real-time working condition, network adapter is sent command signal, command signal is sent to RS232 network commutator by network adapter, RS232 network commutator converts a signal into 232 signals that programmable electronic load can recognise that, engine bench test device is made the big little trick of corresponding heap(ed) capacity according to the command signal received by programmable electronic load, simultaneously, programmable electronic load feeds back to industrial computer the magnitude of voltage of engine bench test device by network loop, and programmable electronic load internal temperature is sent to industrial computer by temperature sensor, if engine bench test device magnitude of voltage exceedes allowed band, or when the temperature of programmable electronic load is higher than permissible value, industrial computer is controlled programmable electronic load and stops loading and being reported to the police by audible-visual annunciator, control logic in wherein said industrial computer refers to according to rotating speed, moment of torsion, power and accelerator open degree are arranged organizes operating mode more, if the rotating speed collected, moment of torsion, when power and accelerator open degree are satisfied by each parameter decision described in certain group operating mode, industrial computer sends the order loading corresponding current, as long as if having a parameter to be unsatisfactory for judging, industrial computer then sends the default current order of loading。
It is an advantage of the current invention that:
(1) data communication protocol accessing engine bench test device is the CAN signal opened, applied widely, it is to avoid overlapping development data output software/port, saves cost；
(2) novelty choose rotating speed, moment of torsion, power and throttle as the foundation judging electromotor real time execution operating mode, accomplished that data are few, judge accurate feature, simplified judgement and control logic；
(3) whole system adopts the Ethernet data network of technology maturation, fast response time, can make corresponding heap(ed) capacity size adjustment according to engine operation condition change in time；
(4) system had/under-voltage, overtemperature alarm and defencive function, accomplished under special circumstances, and protection programmable electronic load in time uses safety；
(5) safe and reliable, practical and simple to operate etc.。
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram of native system；
Fig. 2 is control logical diagram in this test method。
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated, and following example are only used for explaining the present invention, are not intended that limiting the scope of the present invention。
The variable load test system of integral alternator as shown in Figure 1, processes implement module 4 and protection module 9 including engine bench test device 13, data acquisition module 1, data。
Described data acquisition module 1 includes CAN signal and gathers port 2 and CAN signal analyser 3, described CAN signal gathers the 2 of port, the 7 stitch access packages CAN signal output port containing the engine bench test device 13 of open CAN serial communication protocol, main collection electromotor real-time working condition service data, including rotating speed, moment of torsion, power and accelerator open degree。The CAN interface series connection CAN signal of CAN signal analyser 3 gathers port, and the USB interface of CAN signal analyser 3 accesses industrial computer 5。
Described data process enforcement module 4 and include industrial computer 5, network adapter 6, RS232 network commutator 7 and programmable electronic load 8, the network port of described industrial computer 5 connects network adapter 6, this network adapter 6 is a router, arbitrary output network interface series connection RS232 network commutator 7 of network adapter, described RS232 network commutator 7 is by RS232 connection programmable electronic load 8, and the both positive and negative polarity of described programmable electronic load 8 connects engine bench test device 13。
Described protection module 9 includes temperature sensor 10, digital multimeter 11 and audible-visual annunciator 12; temperature sensor 10 is used for detecting programmable electronic load internal operating temperature; the temperature signal input digital multimeter 11 that described temperature sensor 10 gathers; temperature signal is fed back to industrial computer 5 through network adapter 6 by digital multimeter 11, and described audible-visual annunciator 12 is connected with industrial computer 5。
When utilizing said system to test, CAN signal in data acquisition module 1 gathers rotating speed when port 2 gathers electromotor real time execution, moment of torsion, power and accelerator open degree, CAN signal analyser 3 by the electromotor real time execution signal that collects by CAN and usb protocol conversion output usb signal to industrial computer 5。
Industrial computer 5 receives after signal according to controlling logic decision electromotor real time execution operating mode, and according to real-time working condition, network adapter 6 is sent command signal, command signal is sent to RS232 network commutator 7 by network adapter 6, utilize 232 signals and the Ethernet function switching signal of RS232 network commutator, signal is converted to 232 signals that programmable electronic load can recognise that, engine bench test device 13 is made the big little trick of corresponding heap(ed) capacity according to the command signal received by programmable electronic load 8。
Meanwhile, programmable electronic load feeds back to industrial computer the magnitude of voltage of engine bench test device by network loop, and programmable electronic load internal temperature is sent to industrial computer by temperature sensor, if engine bench test device magnitude of voltage exceedes allowed band (10～16V), or when the temperature of programmable electronic load is higher than permissible value (40 DEG C), industrial computer is controlled programmable electronic load and stops loading and being reported to the police by audible-visual annunciator, reminds related personnel。
Fig. 2 is the control logical table of industrial computer in the present embodiment, this control logic refers to arrange according to rotating speed, moment of torsion, power and accelerator open degree organizes operating mode more, if the rotating speed collected, moment of torsion, power and accelerator open degree are satisfied by each parameter decision described in certain group operating mode, industrial computer sends the order loading corresponding current, if as long as have a parameter to be unsatisfactory for judging, industrial computer then sends the default current order of loading。Hereinafter wherein several groups are described in detail。
Referring to the first row in table (sequence number 1), when the arbitrary setting not met in following each row of the engine speed that industrial computer collects, moment of torsion, power and accelerator open degree, and programmable electronic load temperature is not less than 40 DEG C, now industrial computer order programmable electronic load loads 30A electric current, after programmable electronic load performs loading command, engine bench test device magnitude of voltage is fed back to industrial computer, when this voltage is positioned at 10～16V interval, programmable electronic load continuous performs to load 30A order。
Referring to the second row in logical diagram, where it is determined that "Yes" represents that needs judge, "No" represents and this parameter is not judged。(wherein identify that franchise is 10 when industrial computer collects when engine speed meets 3000r/min, namely rotating speed is in 2990-3010 scope), in programmable electronic load, temperature signal is not less than 40 DEG C, and now industrial computer is to programmable electronic load generation movement command signal, orders it to load 40A electric current。Programmable electronic load feeds back to industrial computer engine bench test device magnitude of voltage after performing loading command, and when this voltage is positioned at 10～16V interval, programmable electronic load continuous performs to load 40A order。
Referring to the third line in logical diagram, when industrial computer meets 4000r/min by data collecting module collected to engine speed (3990-4010 scope), it is 2 that accelerator open degree meets the identification franchise of 50%(wherein accelerator open degree, namely accelerator open degree is in 48%-52% scope), feed back in the programmable electronic load of industrial computer temperature signal not less than 40 DEG C, now industrial computer is to programmable electronic load generation movement command signal, orders it to load 70A electric current。Programmable electronic load feeds back to industrial computer engine bench test device magnitude of voltage after performing loading command, and when this voltage is positioned at 10～16V interval, programmable electronic load continuous performs to load 70A order。
Referring to fourth line in logical diagram, when industrial computer meets 5000r/min by data collecting module collected to engine speed (4990-5010 scope), accelerator open degree meets 70%(and 68%-72% scope), it is 5 that moment of torsion meets the identification franchise of 100N m(wherein moment of torsion, namely within the scope of 95N m-105N m), it is 3 that power meets the identification franchise of 80kW(power, namely within the scope of 77kW-83kW), in programmable electronic load, temperature signal is not less than 40 DEG C, now industrial computer is to programmable electronic load generation movement command signal, orders it to load 60A electric current。Programmable electronic load feeds back to industrial computer engine bench test device magnitude of voltage after performing loading command, and when this voltage is positioned at 10～16V, programmable electronic load continuous performs to load 60A order。
In above-mentioned control logical diagram, the identification franchise of engine revolution, moment of torsion, power and accelerator open degree can arbitrarily adjust according to practical situation, and overtemperature alarm temperature and under-voltage/over voltage alarm voltage arbitrarily adjust also dependent on practical situation。
Claims (6)
1. the variable load test system of integral alternator, it is characterised in that: include engine bench test device, data acquisition module and data and process enforcement module, wherein,
The input of described data acquisition module is connected with the output port of engine bench test device, rotating speed when gathering electromotor real time execution, moment of torsion, power and accelerator open degree；
Described data process enforcement module and include industrial computer and programmable electronic load, the outfan of data acquisition module processes, with data, the industrial computer implementing module and is connected, industrial computer receives according to controlling logic decision electromotor real time execution operating mode after signal, and sends command signal according to real-time working condition to programmable electronic load；
Described engine bench test device is loaded by described programmable electronic load according to the command signal received。
2. the variable load test system of integral alternator according to claim 1; it is characterized in that: also include protection module; described protection module includes the temperature sensor of monitoring programmable electronic load internal operating temperature, and the signal of described temperature sensor is sent to industrial computer。
3. the variable load test system of integral alternator according to claim 1 and 2, it is characterized in that: described data acquisition module includes CAN signal and gathers port and CAN signal analyser, described CAN signal gathers port and accesses engine bench test device, the CAN interface series connection CAN signal of CAN signal analyser gathers port, and the USB interface of CAN signal analyser accesses industrial computer。
4. the variable load test system of integral alternator according to claim 1 and 2, it is characterized in that: described data process enforcement module and also include network adapter and RS232 network commutator, the network port of described industrial computer connects network adapter, the output network interface series connection RS232 network commutator of network adapter, described RS232 network commutator passes through connection programmable electronic load, and the both positive and negative polarity of described programmable electronic load connects engine bench test device。
5. the variable load test system of integral alternator according to claim 1 and 2; it is characterized in that: described protection module also includes digital multimeter and audible-visual annunciator; the temperature signal input digital multimeter that described temperature sensor gathers; temperature signal is fed back to industrial computer through network adapter by digital multimeter, and described audible-visual annunciator is connected with industrial computer。
6. the variable load test method of integral alternator, it is characterised in that:
Rotating speed when CAN signal in data acquisition module gathers port processing electromotor real time execution, moment of torsion, power and accelerator open degree, the electromotor real time execution signal collected is passed through CAN and usb protocol conversion output usb signal to industrial computer by CAN signal analyser
Industrial computer receives after signal according to controlling logic decision electromotor real time execution operating mode, and according to real-time working condition, network adapter is sent command signal, command signal is sent to RS232 network commutator by network adapter, RS232 network commutator converts a signal into 232 signals that programmable electronic load can recognise that, engine bench test device is made the big little trick of corresponding heap(ed) capacity according to the command signal received by programmable electronic load
Simultaneously, programmable electronic load feeds back to industrial computer the magnitude of voltage of engine bench test device by network loop, and programmable electronic load internal temperature is sent to industrial computer by temperature sensor, if engine bench test device magnitude of voltage exceedes allowed band, or when the temperature of programmable electronic load is higher than permissible value, industrial computer is controlled programmable electronic load and stops loading and being reported to the police by audible-visual annunciator
Control logic in wherein said industrial computer refers to arrange according to rotating speed, moment of torsion, power and accelerator open degree organizes operating mode more, if the rotating speed collected, moment of torsion, power and accelerator open degree are satisfied by each parameter decision described in certain group operating mode, industrial computer sends the order loading corresponding current, if as long as have a parameter to be unsatisfactory for judging, industrial computer then sends the default current order of loading。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610081955.3A CN105699895A (en) | 2016-02-05 | 2016-02-05 | Variable loading test system and method for monoblock type alternating current generator |
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| CN201610081955.3A CN105699895A (en) | 2016-02-05 | 2016-02-05 | Variable loading test system and method for monoblock type alternating current generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108661860A (en) * | 2018-06-19 | 2018-10-16 | 汕头大学 | A kind of wind-driven generator rotating speed TT＆C system for wind tunnel test |
| WO2018192585A1 (en) * | 2017-04-21 | 2018-10-25 | 罗伯特·博世有限公司 | Transmission method and transmission device |
| CN112968920A (en) * | 2019-12-13 | 2021-06-15 | 亿华通动力科技有限公司 | Fuel cell engine test data real-time monitoring system and method |
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