CN102840985B - Engine test system - Google Patents
Engine test system Download PDFInfo
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- CN102840985B CN102840985B CN201210336391.5A CN201210336391A CN102840985B CN 102840985 B CN102840985 B CN 102840985B CN 201210336391 A CN201210336391 A CN 201210336391A CN 102840985 B CN102840985 B CN 102840985B
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- electromagnetic clutch
- engine
- control unit
- clutch
- dynamometer machine
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Abstract
The invention provides an engine test system capable of performing both a routine test and a reverse dragging test. The engine test system comprises a frequency changer, a motor, a torque meter, an electromagnetic clutch, a dynamometer and a clutch control unit, wherein the frequency changer is used for controlling a rotating speed of the motor; the motor is connected to one end of the torque meter; the other end of the torque meter is connected to a driving part of the electromagnetic clutch; a driven part of the electromagnetic clutch is connected to one end of the dynamometer; the other end of the dynamometer is connected to a tested engine; and the clutch control unit is used for controlling separation and combination of the electromagnetic clutch. The engine test system is simple in structure and low in cost.
Description
Technical field
The present invention relates to automotive engine applications, particularly a kind of engine test system.
Background technology
Engine test detects the various data of engine under various working condition, measure, to analyze the various performances of engine.Engine test has conventional test and instead drags test two kinds: conventional test drives engine ignition primarily of starter, after engine operation, controlling the large of throttle makes engine work under each working condition less, is detected the real time data of each operating mode of engine by various measurement mechanism; Anti-test and the engine of dragging misfires, and drives engine to rotate under each working condition, checked the size of the resistance-frictional work moment of torsion under each working condition of engine, after stable conditions, then make engine ignition work by measurement mechanism by driving machinery.General dynamometer machine can only be measured the conventional test after engine ignition work, is detected, and can do the large-scale dynamometer machine complex process that conventional test instead can drag again test, and price is abnormal expensive.
Summary of the invention
The object of the present invention is to provide one to carry out conventional test, instead can drag again the engine test system of test, this system architecture is simple, and cost is low.
For realizing above object, The embodiment provides following technical scheme:
A kind of engine test system, comprising:
Frequency converter;
Motor;
Torque gauge;
Electromagnetic clutch;
Dynamometer machine;
Clutch control unit;
The rotating speed of motor described in described Frequency Converter Control, described motor is connected to described torque gauge one end, the other end of described torque gauge is connected to the driving link of described electromagnetic clutch, the driven member of described electromagnetic clutch is connected to one end of described dynamometer machine, the other end of described dynamometer machine is connected to tested engine, and described clutch control unit controls separation and the combination of described electromagnetic clutch.
Preferably, described clutch control unit adopts relay latching circuit.
Preferably, the ignition signal that described clutch control unit receives tested engine is separated to make described electromagnetic clutch.
Preferably, described frequency converter arranges frequency by potentiometer.
Preferably, described torque gauge has display unit.
Counter drag test time, clutch control unit controls electromagnetic clutch and combines, and motor drags tested engine by torque gauge, clutch coupling, dynamometer machine, and torque gauge, dynamometer machine can be measured simultaneously.After tested engine ignition, clutch control unit controls electromagnetic clutch and is separated, and tested engine drags dynamometer machine and carries out conventional test.Drag in test counter, by inverter control motor speed, tested engine can be made to work under different working conditions.
Because the frequency converter, motor, torque gauge, electromagnetic clutch, dynamometer machine etc. that adopt in system are all common apparatus, be easy to buy, cost is low.Connection between each device is simple, is easy to realize.
Further, ignition signal is sent to clutch control unit by tested engine, and system can be made automatically to enter the conventional test stage, controls simple.
Further, potentiometer arranges frequency converter frequency, torque gauge has display unit in employing, is all easy to the operation of testing crew, record.
Accompanying drawing explanation
Next will be described in further detail embodiments of the invention by reference to the accompanying drawings, wherein:
Fig. 1 is the system chart of first embodiment of the present invention;
Fig. 2 is the system chart of second embodiment of the present invention;
Fig. 3 is the clutch control unit schematic diagram of embodiments of the invention;
Fig. 4 is a kind of connection diagram of typical torque gauge.
Embodiment
With reference to figure 1, frequency converter, motor, torque gauge, electromagnetic clutch, dynamometer machine jointly complete the routine of tested engine and instead drag test, and electromagnetic clutch controls by clutch control unit.Drag experimental stage counter, motor is the power source of whole pilot system.Motor is by power transmission to torque gauge, and torque gauge drives the driving link of electromagnetic clutch to rotate again.The driven member of electromagnetic clutch is arranged on dynamometer machine main shaft, and dynamometer machine is connected with tested engine.Pass through clutch control unit, the driving link of electromagnetic clutch and driven member are combined, thus the rotation of the driving link of electromagnetic clutch is passed to driven member, dynamometer machine, and then drag tested engine, the motor friction merit moment of torsion under each working condition can be obtained from dynamometer machine, torque gauge.The rotating speed of inverter control motor, makes tested engine be in different working conditions.Generally, the frequency of frequency converter can either be arranged by guidance panel, also can be set by potentiometer.The frequency setting of frequency converter is carried out, because potentiometer can be external to the position that testing crew is easy to operate preferably by potentiometer.The external display unit of preferred torque gauge, is convenient to the observation of testing crew, record.After tested engine reaches ignition condition, or when needing abort, Non-follow control clutch control unit makes electromagnetic clutch driving link be separated with driven member.After tested engine ignition enters the conventional test stage, because electromagnetic clutch is separated, tested engine only drags dynamometer machine, and dynamometer machine carries out power measurement to tested engine.
Shown in figure 2 in embodiment, when tested engine arrives ignition condition, ignition signal is sent to clutch control unit while igniting, after clutch control unit receives this signal, the driving link of electromagnetic clutch is separated with driven member, system enters the conventional test stage automatically, and this makes the control of engine test more convenient.
Fig. 3 indicates the principle of work of the clutch control unit that the present embodiment adopts.What adopt in the present embodiment is typical relay latching circuit.Power turn-on switch QS, control circuit obtains electric.Press shift knob SB2, KM coil obtains electric, and main contacts KM closes, and KM1 auxiliary contact close self-locking, and the field coil of electromagnetic clutch obtains electric, and electromagnetic clutch combines, and motor drives dynamometer machine and tested engine rotation work; Press shift knob SB1, KM coil losing electricity, main contacts KM decontrols, and KM1 auxiliary contact discharge, and electromagnetic clutch is separated, and motor can not drive tested engine rotation.In a second embodiment of the present invention, when clutch control unit receives the ignition signal of tested engine, switch RJ action, electromagnetic clutch is separated.Those of ordinary skill in the art can imagine, clutch control unit can also be come manually by other circuit or mode or the separation of automatic control electric magnet clutch and combination.
Fig. 4 indicates a kind of connected mode of typical torque gauge.The rotating shaft of motor 1 is connected in the rotating shaft of one end of torque gauge 3 by shaft coupling 2, the rotating shaft of the other end of torque gauge 3 is connected with the driving link 4 of electromagnetic clutch by another shaft coupling 2.Connection between the driven member of dynamometer machine and electromagnetic clutch and tested engine and torque gauge similar, will no longer be described in detail herein.
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (4)
1. an engine test system, comprising:
Frequency converter;
Motor;
Torque gauge;
Electromagnetic clutch;
Dynamometer machine;
Clutch control unit;
The rotating speed of motor described in described Frequency Converter Control, described motor is connected to described torque gauge one end, the other end of described torque gauge is connected to the driving link of described electromagnetic clutch, the driven member of described electromagnetic clutch is connected to one end of described dynamometer machine, the other end of described dynamometer machine is connected to tested engine, and described clutch control unit controls separation and the combination of described electromagnetic clutch; Experimental stage is dragged counter, power transmission is given described torque gauge by described motor, described torque gauge drives the driving link of electromagnetic clutch to rotate again, by described clutch control unit, the driving link of described electromagnetic clutch and driven member are combined, thus the rotation of the driving link of described electromagnetic clutch is passed to driven member, dynamometer machine, and then drag tested engine; After tested engine ignition enters the conventional test stage, described electromagnetic clutch is separated, and tested engine only drags described dynamometer machine, and described dynamometer machine carries out power measurement to tested engine; The ignition signal that described clutch control unit receives tested engine is separated to make described electromagnetic clutch.
2. engine test system according to claim 1, is characterized in that, described clutch control unit adopts relay latching circuit.
3. engine test system according to claim 1, is characterized in that, described frequency converter arranges frequency by potentiometer.
4. engine test system according to claim 1, is characterized in that, described torque gauge has display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336391.5A CN102840985B (en) | 2012-09-12 | 2012-09-12 | Engine test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336391.5A CN102840985B (en) | 2012-09-12 | 2012-09-12 | Engine test system |
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| Publication Number | Publication Date |
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| CN102840985A CN102840985A (en) | 2012-12-26 |
| CN102840985B true CN102840985B (en) | 2015-05-06 |
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| CN201210336391.5A Active CN102840985B (en) | 2012-09-12 | 2012-09-12 | Engine test system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913311B (en) * | 2014-03-25 | 2017-01-25 | 潍柴动力股份有限公司 | Device for testing starting characteristic of engine |
| CN106769055A (en) * | 2017-01-17 | 2017-05-31 | 道依茨汽（大连）柴油机有限公司 | Hybrid power engine endurance test method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1290856A (en) * | 2000-11-09 | 2001-04-11 | 常柴股份有限公司 | Measurement of engine mechanical efficiency and back drawing test system |
| CN201352178Y (en) * | 2008-12-24 | 2009-11-25 | 天津雷沃动力股份有限公司 | Starting device of trial-run bench of engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303662A (en) * | 1982-11-22 | 1994-04-19 | Denny Drake | Minimum tillage tool bar and method for using same |
| JP3463859B2 (en) * | 1998-09-18 | 2003-11-05 | 日産自動車株式会社 | Inspection method for hybrid vehicles |
| CN2476468Y (en) * | 2001-03-28 | 2002-02-13 | 吉林大学 | Back-pull testing device for vehicle chassis function test machine |
| CN101476982B (en) * | 2009-01-23 | 2010-10-20 | 吉林大学 | Self-adapting cold grinding and hot testing apparatus for car engine |
| CN102305715A (en) * | 2011-05-20 | 2012-01-04 | 清华大学 | Dynamic load simulating device and method for automobile power system test |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1290856A (en) * | 2000-11-09 | 2001-04-11 | 常柴股份有限公司 | Measurement of engine mechanical efficiency and back drawing test system |
| CN201352178Y (en) * | 2008-12-24 | 2009-11-25 | 天津雷沃动力股份有限公司 | Starting device of trial-run bench of engine |
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| CN102840985A (en) | 2012-12-26 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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