CN204855055U - Instantaneous torque measurement system of engine - Google Patents
Instantaneous torque measurement system of engine Download PDFInfo
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- CN204855055U CN204855055U CN201520311682.8U CN201520311682U CN204855055U CN 204855055 U CN204855055 U CN 204855055U CN 201520311682 U CN201520311682 U CN 201520311682U CN 204855055 U CN204855055 U CN 204855055U
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Abstract
The utility model discloses an instantaneous torque measurement system of engine, include: diesel tank, low pressure diesel pump, diesel oil filter, flowmeter, high -pressure diesel pump, engine and torque converter connect gradually through the pipeline, still include engine speed measuring device, data acquisition system and data analysis system, engine speed measuring device and data acquisition system are connected, data acquisition system and data analysis system are connected, utilize the relation of three kinds engine speed, oil consumption rate, moments of torsion that bench test demarcated in advance to formulate the universal characteristic MAP of engine picture, gather rotational speed, the instantaneous oil consumption data of engine and handle data, calculate each instantaneous real -time moment of torsion of engine. The utility model discloses beneficial effect: test simple structure does not receive the influence of tester's specialty ability, and system reliability is high, and the test result uniformity is good.
Description
Technical field
The utility model relates to technical field of internal combustion engines, particularly relates to a kind of motor instant torch measuring system.
Background technology
Engine of good performance and if torque converter matching is bad can affect engineering machinery entrucking performance, the matched well of the PTO such as engine and torque converter can betterment works machine power, economy and emission performance.
The parameter such as rotating speed, oil consumption, moment of torsion pre-entering engine is needed in the matching primitives process of engine and torque converter, usually utilize the data of the bench test of engine as input parameter, but bench test is the result of steady state test, and there is a large amount of transient working process such as acceleration, deceleration, moment of torsion sudden change in the course of the work in engineering machinery, the data of bench test can not contain all working process, therefore need the real-time output torque of engine in survey engineering machinery typical operation.
Normally used torque measuring method pastes foil gauge on parts, utilizes the relation calculated torque of stress and strain.Link rigidity between engineering machinery engine and torque converter is very large, and deflection is little, and the torque error measured by this method is comparatively large, and the paste position of foil gauge and method are on the impact of result also comparatively greatly, require very high to the professional ability of tester.
Utility model content
The purpose of this utility model is exactly to solve the problem, propose a kind of motor instant torch measuring system, this system utilizes engine speed, mutual relationship between rate of fuel consumption and moment of torsion, the instantaneous torque in the course of the work such as testing engineering machinery, truck, for engine and PTO Optimized Matching provide data.
To achieve these goals, the utility model adopts following technical scheme:
A kind of motor instant torch measuring system, comprising: diesel fuel tanks, low pressure diesel pump, diesel fuel filter, flowmeter, fuel pump, engine and torque converter are connected successively by pipeline; Also comprise engine speed measuring device, data acquisition system (DAS) and data analysis system; Described engine speed measuring device is connected with data acquisition system (DAS), and described data acquisition system (DAS) is connected with data analysis system.
Described flowmeter is connected by T-valve with fuel pump, and the 3rd port of T-valve is connected with fuel pump by oil return cooler; Data acquisition system (DAS) is connected respectively with data analysis system, flowmeter and engine.
Connecting line between described flowmeter and fuel pump arranges oil temperature sensor, and described oil temperature sensor is connected with data acquisition system (DAS).
Described engine is respectively arranged with engine temperature sensing unit and engine speed sensor; Described engine temperature sensing unit is connected with data acquisition system (DAS) respectively with engine speed sensor.
Engine speed sensor gathers the real-time rotate speed of engine, and tach signal is transferred to data acquisition system (DAS); The correction that the temperature that engine temperature sensing unit gathers engine calculates as instantaneous torque.
In engine working process, low pressure diesel pump is diesel oil pressurization, flow to diesel fuel filter and filter out impurity in diesel oil, then flowmeter is entered, test result is also converted to digital quantity and is transferred to data acquisition system (DAS) by the accumulative oil consumption of flowmeter survey engine and instantaneous oil consumption, data acquisition system (DAS) notes down the instantaneous oil consumption of engine in real time according to the parameter of setting, and the temperature of the oil temperature sensor synchronous acquisition diesel oil in pipeline, as the corrected parameter that follow-up instantaneous torque calculates.
Diesel oil through fuel pump bring up to need pressure after enter the spraying system of engine, and the external output torque of spray burning, by the oil return of oil return cooler cooling fuel pump, cooled diesel oil returns fuel pump through T-valve.
The beneficial effects of the utility model are:
The relation of the engine speed that the utility model utilizes bench test to demarcate in advance, rate of fuel consumption, moment of torsion three kinds formulates Engine Universal Characteristics MAP, and in universal characteristic MAP, three is in mutually corresponding relation.Motor instant torch measuring system is utilized to gather the rotating speed of engine, instantaneous oil consumption after processing data, just the real-time moment of torsion of each instantaneous engine of engineering machinery typical operation can be calculated, for the Optimized Matching design of engine and torque converter provides loading spectrum.
The utility model structure is simple, and the not impact of tested person personnel specialty ability, system reliability is high, and test result consistance is good.
Accompanying drawing explanation
Fig. 1 is the motor instant torch measuring system schematic diagram of the utility model embodiment;
Wherein, 101 diesel fuel tanks, 102 low pressure diesel pumps, 103 diesel fuel filters, 104 main fuel pipelines, 105 flowmeters, 106 data acquisition system (DAS)s, 107 data analysis systems, 108 engine temperature sensing units, 109 engine speed sensors, 110 engines, 111 torque converter, 112 fuel pumps, 113 oil return coolers, 114 return lines, 115 T-valve, 116 oil temperature sensors.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
The structure of the utility model instantaneous torque measuring system as shown in Figure 1, Fig. 1 is an embodiment of the present utility model, and instantaneous torque measuring system comprises diesel fuel tanks 101, low pressure diesel pump 102, diesel fuel filter 103, main fuel pipeline 104, flowmeter 105, data acquisition system (DAS) 106, data analysis system 107, engine temperature sensing unit 108, engine speed sensor 109, engine 110, torque converter 111, fuel pump 112, oil return cooler 113, return line 114, T-valve 115, oil temperature sensor 116.
Diesel fuel tanks 101, low pressure diesel pump 102, diesel fuel filter 103, flowmeter 105, fuel pump 112, engine 110 and torque converter 111 are connected successively by pipeline; Diesel fuel filter 103 is connected with flowmeter 105 by main fuel pipeline 104; Engine speed measuring device is engine speed sensor 109, and engine speed sensor 109 is connected with data acquisition system (DAS) 106, and data acquisition system (DAS) 106 is connected with data analysis system 107.
Flowmeter 105 is connected by T-valve 115 with fuel pump 112, and the 3rd port of T-valve 115 is connected with fuel pump 112 by oil return cooler 113; Data acquisition system (DAS) 106 is connected respectively with data analysis system 107, flowmeter 105 and engine 110.
Connecting line between flowmeter 105 and fuel pump 112 is arranged oil temperature sensor 116, oil temperature sensor 116 is connected with data acquisition system (DAS) 106.
Engine 110 is respectively arranged with engine temperature sensing unit 108 and engine speed sensor 109; Described engine temperature sensing unit 108 is connected with data acquisition system (DAS) 106 respectively with engine speed sensor 109.Engine speed sensor 109 gathers the real-time rotate speed of engine 110, and tach signal is transferred to data acquisition system (DAS) 106; The correction that the temperature that engine temperature sensing unit 108 gathers engine 110 calculates as instantaneous torque.
In engine working process, low pressure diesel pump 102 is diesel oil pressurization, flow to diesel fuel filter 103 and filter out impurity in diesel oil, then flowmeter 105 is entered, flowmeter 105 can measure the accumulative oil consumption of engine and instantaneous oil consumption and test result is converted to digital quantity is transferred to data acquisition system (DAS) 106, data acquisition system (DAS) 106 notes down the instantaneous oil consumption of engine in real time according to the parameter of setting, the temperature of the oil temperature sensor 116 synchronous acquisition diesel oil in pipeline, as the corrected parameter that follow-up instantaneous torque calculates.Diesel oil through fuel pump 112 bring up to need pressure after enter the spraying system of engine 110, and the external output torque of spray burning, because the returning-oil temperature of fuel pump 112 is higher, for ensureing the functional reliability of engine 110, oil cooler 113 is installed back in measuring system, the oil return of cooling fuel pump, cooled diesel oil returns fuel pump 112 through T-valve 115, return line 114.Speed probe 109 gathers the real-time rotate speed of engine 110, and tach signal is transferred to data acquisition system (DAS) 106.The correction that the temperature that engine temperature sensing unit 108 gathers engine 110 calculates as instantaneous torque.The data collected process by data analysis system 107, for rotating speed and the oil consumption of concrete corresponding part, the universal characteristic data of this engine 110 obtained at platform experiment are utilized to carry out drafting universal characteristic MAP, reflect the parameters such as the power of corresponding operating point, moment of torsion, rate of load condensate, utilize the diesel fuel temperature that collects and engine temperature to revise result of calculation simultaneously, ensure the accuracy of instantaneous torque.
The measuring method of the utility model instantaneous torque measuring system comprises the steps:
S201: first data analysis system 107 reads the data of collection;
S202: filtering, noise reduction process are carried out to data, the abnormity point in removing data;
S203: according to the universal characteristic MAP of the rotating speed demarcated in advance in engine data storehouse in advance, moment of torsion and oil consumption, utilizes and tables look-up and the instantaneous torque of method calculation engine 110 of least square method interpolation calculation;
According to the Engine Universal Characteristics MAP of demarcating in advance in engine data storehouse, rotating speed measured by utilization and rate of fuel consumption are as known parameters, inquire about Engine Universal Characteristics MAP medium speed, rate of fuel consumption and the moment of torsion three corresponding relation demarcated in advance, inquire about or calculate the instantaneous torque of engine;
First on the horizontal ordinate of universal characteristic MAP, corresponding point are searched according to actual measurement rotating speed during inquiry, then on the rate of fuel consumption level line of universal characteristic MAP, search corresponding point according to actual measurement rate of fuel consumption, the corresponding point finally jointly determined according to rotating speed and rate of fuel consumption are at the instantaneous torque of the ordinate inquiry engine of MAP;
If actual measurement rotating speed and rate of fuel consumption are got along well, coordinate axis scale merit or level line overlap, and utilize least square method interpolation lookup corresponding point.
S204: to the singular data process of interpolation result;
S205: export the rotating speed of real work circulation, instantaneous torque and rate of fuel consumption, the input load mated with torque converter 111 as engine 110 is composed.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (7)
1. a motor instant torch measuring system, is characterized in that, comprising: diesel fuel tanks, low pressure diesel pump, diesel fuel filter, flowmeter, fuel pump, engine and torque converter are connected successively by pipeline; Also comprise engine speed measuring device, data acquisition system (DAS) and data analysis system; Described engine speed measuring device is connected with data acquisition system (DAS), and described data acquisition system (DAS) is connected with data analysis system.
2. a kind of motor instant torch measuring system as claimed in claim 1, it is characterized in that, described flowmeter is connected by T-valve with fuel pump, and the 3rd port of T-valve is connected with fuel pump by oil return cooler; Data acquisition system (DAS) is connected respectively with data analysis system, flowmeter and engine.
3. a kind of motor instant torch measuring system as claimed in claim 1, is characterized in that, the connecting line between described flowmeter and fuel pump arranges oil temperature sensor, and described oil temperature sensor is connected with data acquisition system (DAS).
4. a kind of motor instant torch measuring system as claimed in claim 1, is characterized in that, described engine is respectively arranged with engine temperature sensing unit and engine speed sensor; Described engine temperature sensing unit is connected with data acquisition system (DAS) respectively with engine speed sensor.
5. a kind of motor instant torch measuring system as claimed in claim 3, is characterized in that, engine speed sensor gathers the real-time rotate speed of engine, and tach signal is transferred to data acquisition system (DAS); The correction that the temperature that engine temperature sensing unit gathers engine calculates as instantaneous torque.
6. a kind of motor instant torch measuring system as claimed in claim 1, it is characterized in that, in engine working process, low pressure diesel pump is diesel oil pressurization, flow to diesel fuel filter and filter out impurity in diesel oil, then flowmeter is entered, test result is also converted to digital quantity and is transferred to data acquisition system (DAS) by the accumulative oil consumption of flowmeter survey engine and instantaneous oil consumption, data acquisition system (DAS) notes down the instantaneous oil consumption of engine in real time according to the parameter of setting, the temperature of the oil temperature sensor synchronous acquisition diesel oil in pipeline, as the corrected parameter that follow-up instantaneous torque calculates.
7. a kind of motor instant torch measuring system as claimed in claim 1, it is characterized in that, diesel oil through fuel pump bring up to need pressure after enter the spraying system of engine, and the external output torque of spray burning, by the oil return of oil return cooler cooling fuel pump, cooled diesel oil returns fuel pump through T-valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520311682.8U CN204855055U (en) | 2015-05-14 | 2015-05-14 | Instantaneous torque measurement system of engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520311682.8U CN204855055U (en) | 2015-05-14 | 2015-05-14 | Instantaneous torque measurement system of engine |
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| CN204855055U true CN204855055U (en) | 2015-12-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157893A (en) * | 2015-05-14 | 2015-12-16 | 山东大学 | Engine instantaneous torque measuring system and method |
| CN106679862A (en) * | 2016-12-30 | 2017-05-17 | 潍柴动力股份有限公司 | Engine actual output torque measuring method and system |
| CN106872174A (en) * | 2017-02-22 | 2017-06-20 | 重庆理工大学 | Automobile transmission rack Knock test engine transient cycle moment of torsion analogy method |
| CN109596253A (en) * | 2018-12-26 | 2019-04-09 | 重庆长安汽车股份有限公司 | A kind of engine output torque on-line testing analysis method |
| CN113740067A (en) * | 2021-09-06 | 2021-12-03 | 中国航发贵阳发动机设计研究所 | Aeroengine starting torque measuring device |
| CN115111069A (en) * | 2022-06-30 | 2022-09-27 | 中联重科股份有限公司 | Method and processor for optimizing engine oil consumption of crane |
-
2015
- 2015-05-14 CN CN201520311682.8U patent/CN204855055U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157893A (en) * | 2015-05-14 | 2015-12-16 | 山东大学 | Engine instantaneous torque measuring system and method |
| CN106679862A (en) * | 2016-12-30 | 2017-05-17 | 潍柴动力股份有限公司 | Engine actual output torque measuring method and system |
| CN106872174A (en) * | 2017-02-22 | 2017-06-20 | 重庆理工大学 | Automobile transmission rack Knock test engine transient cycle moment of torsion analogy method |
| CN109596253A (en) * | 2018-12-26 | 2019-04-09 | 重庆长安汽车股份有限公司 | A kind of engine output torque on-line testing analysis method |
| CN113740067A (en) * | 2021-09-06 | 2021-12-03 | 中国航发贵阳发动机设计研究所 | Aeroengine starting torque measuring device |
| CN115111069A (en) * | 2022-06-30 | 2022-09-27 | 中联重科股份有限公司 | Method and processor for optimizing engine oil consumption of crane |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20180514 |