CN106053086A

CN106053086A - Dynamic simulation engine testing system and method

Info

Publication number: CN106053086A
Application number: CN201610664705.2A
Authority: CN
Inventors: 杨建伟
Original assignee: MOTORCYCLE DETECTION TECHNOLOGY RESEARCH INST CHINA WEAPON EQUIPMENT GROUP
Current assignee: China western Inspection Co., Ltd.
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2016-10-26
Anticipated expiration: 2036-08-12
Also published as: CN106053086B

Abstract

The invention discloses a dynamic simulation engine testing system, and the system comprises a dynamic simulation dynamometer, a sensing detection system, a control system, an engine rack, a throttle operating mechanism, a clutch operating mechanism, and a gear shift operating mechanism. The dynamic simulation dynamometer comprises a pedestal, a first inertia flywheel bearing support, a second inertia flywheel bearing support, a first motor bearing support, and a second motor bearing support. The first inertia flywheel bearing support and the second inertia flywheel bearing support are respectively provided with a flywheel shaft, and the flywheel shafts are connected with inertia flywheels. A dynamometer motor is disposed between the first motor bearing support and the second motor bearing support. End parts of the flywheel shafts are connected with a coder. The housing of the dynamometer motor is provided with a force sensor. The control system comprises a main control computer, a PLC module, and a frequency converter. The sensing detection system comprises a fuel consumption meter. The invention also discloses a dynamic simulation engine testing method. The system is convenient to install and use, is high in working reliability, and is high in practicality.

Description

A kind of dynamic analog engine test system and method

Technical field

The invention belongs to engine test technical field, be specifically related to a kind of dynamic analog engine test system and side Method.

Background technology

Traditional engine test system is generally used to measure the parameters such as engine power, moment of torsion, fuel oil consumption.Along with skill The development of art and the demand to the shortening construction cycle, need car load (motorcycle, vapour to be mated to electromotor on stand Car) performance (speed, acceleration etc.) simulation, traditional engine test system cannot simulate vehicle performance exactly.

Summary of the invention

The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that a kind of structure letter Single, novel in design reasonable, easy to use, realize low cost, functional reliability height, length in service life, can be effectively at engine bed Carry out the simulation of vehicle performance on frame, reduce development experiments cost, practical dynamic analog engine test system.

For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of dynamic analog engine test system, It is characterized in that: include dynamic analog dynamometer machine, sensing and detecting system, control system and for install electromotor to be tested send out Motivation stand, and for operating throttle operation mechanism, clutch operating mechanism and the Gear shift operation mechanism of electromotor to be tested；

Described dynamic analog dynamometer machine include base and the first inertial flywheel bearings being fixedly connected on base, Second inertial flywheel bearings, the first motor bearings support and the second motor bearings supports, described first inertial flywheel bearing Support and in the second inertial flywheel bearings, flywheel shaft be installed, being positioned at described first inertial flywheel bearings and second and be used to Property flywheel bearing support between one section of flywheel shaft on connect and have an inertial flywheel, described first motor bearings supports and the second motor Being provided with dynamometer machine motor between bearings, the two ends output shaft of described dynamometer machine motor is separately mounted to the first motor bearings Supporting and the second motor bearings supports, the described dynamometer machine motor output shaft near described inertial flywheel side passes through flywheel shaft Shaft coupling is connected with flywheel shaft, and described dynamometer machine motor has for connecting away from connecting on the output shaft of described inertial flywheel side The dynamometer machine main spindle coupling of the output shaft of electromotor to be tested, the end of described flywheel shaft connects to be had for turning flywheel shaft The encoder that speed measures, the shell that the shell of described dynamometer machine motor is provided with one end and dynamometer machine motor is fixing even Connect, the other end is fixed with base and is connected and for the force transducer measuring the moment of torsion of dynamometer machine motor；

Described throttle operation mechanism includes that Throttle Opening Control servomotor, throttle rotate wheel and acceleration cable, and described rotation is taken turns Be fixedly connected on the output shaft of Throttle Opening Control servomotor, described acceleration cable be wrapped in throttle rotate wheel on, described in wait to try The air throttle issuing after examination and approval motivation is connected with acceleration cable；

Described clutch operating mechanism include Clutch Control servomotor, clutch rotate wheel, first clutch bracing wire, Clutch operating connecting rod and second clutch bracing wire, described clutch rotates wheel and is fixedly connected on Clutch Control servomotor On output shaft, the one ends wound of described first clutch bracing wire rotates on wheel at clutch, described first clutch bracing wire another One end is connected with clutch operating connecting rod, and one end of described second clutch bracing wire is connected with clutch operating connecting rod, described in treat The clutch control arm of test engine is connected with the other end of second clutch bracing wire；

Described Gear shift operation mechanism includes that gearshift controls servomotor, gearshift rotates wheel and gear-shifting bracing wire, and described gearshift turns Driving wheel is fixedly connected on gearshift and controls on the output shaft of servomotor, and described gear-shifting bracing wire is wrapped in gearshift and rotates on wheel, described The gear level of electromotor to be tested is connected with gear-shifting bracing wire；

Described control system includes PLC module that main control computer connects with main control computer and connects with PLC module Converter, described encoder and force transducer be all connected with the input of PLC module, described Throttle Opening Control servomotor, clutch Device controls servomotor and gearshift controls servomotor and is all connected with the outfan of PLC module, described dynamometer machine motor and frequency conversion Device connects；

Described sensing and detecting system includes that the fuel consumption for treating test engine carries out the fuel consumption meter detected, institute State fuel consumption meter to be connected with the input of PLC module.

Above-mentioned a kind of dynamic analog engine test system, it is characterised in that: described sensing and detecting system also includes using In the gas leak meter that the crankcase gas leakage treating test engine carries out detecting, for treating test engine burning time Air/Fuel ratio analysis instrument that air-fuel ratio carries out detecting, for treat that the spark-plug gasket temperature of test engine carries out detecting first Temperature sensor, the second temperature sensor carrying out detecting for the oil temperature treating test engine, for to be tested Three-temperature sensor that the intake air temperature of electromotor carries out detecting, detect for treating the fuel oil temperature of test engine The 4th temperature sensor, the first pressure transducer carrying out detecting for the admission pressure treating test engine, for right The second pressure transducer that engine back pressure to be tested carries out detecting, carry out for treating the fuel pressure of test engine The 3rd pressure transducer detected and the pulse rotating speed being used for treating test engine carry out the engine speed sensor detected, Described gas leak meter (4) and Air/Fuel ratio analysis instrument are all connected with main control computer, described first temperature sensor, the second temperature Sensor, three-temperature sensor, the 4th temperature sensor, the first pressure transducer, the second pressure transducer, the 3rd pressure pass Sensor and engine speed sensor are all connected with the input of PLC module.

Above-mentioned a kind of dynamic analog engine test system, it is characterised in that: described inertial flywheel is monoblock type inertia Flywheel, described monoblock type inertial flywheel includes discoidal integral flywheel body and is arranged on the center of integral flywheel body Position and for connecting the integral flywheel installing hole of flywheel shaft.

Above-mentioned a kind of dynamic analog engine test system, it is characterised in that: described inertial flywheel is flanged type inertia Flywheel, described flanged type inertial flywheel includes discoidal flanged type flywheel body and is arranged on the center of flanged type flywheel body Position and for connecting the flanged type flywheel installing hole of flywheel shaft, the side, both sides of described flanged type flywheel body is respectively provided with There is the loss of weight technology groove of annular.

Above-mentioned a kind of dynamic analog engine test system, it is characterised in that: described dynamometer machine motor is frequency control Alternating current generator.

Above-mentioned a kind of dynamic analog engine test system, it is characterised in that: described encoder is optical-electricity encoder.

Present invention also offers that a kind of method step is simple, realize convenient dynamic analog engine test method, it is special Levying and be, the method comprises the following steps:

Step one, determine and treat road resistance that the vehicle of simulated target car load is corresponding and be stored in main control computer；

Step 2, electromotor to be tested is fixed on engine pedestal, and by the output shaft of electromotor to be tested and survey Merit machine main spindle coupling connects；

Step 3, the air throttle of electromotor to be tested is connected with the acceleration cable in throttle operation mechanism, by be tested The clutch control arm of electromotor is connected with the second clutch bracing wire in clutch operating mechanism, and by electromotor to be tested Gear level is connected with the gear-shifting bracing wire in Gear shift operation mechanism；

Step 4, carrying out treating simulated target car load the max speed electromotor dynamic analog test, detailed process is:

Step 401, main control computer are by road roadlock corresponding for the vehicle treating simulated target car load determined in step one Power is transferred to PLC module, and PLC module is transmitted further to converter, the dynamometer machine motor in transducer drive dynamic analog dynamometer machine, Dynamic analog dynamometer machine is made to be operated under road resistance simulation model；

Step 402, start electromotor to be tested；

Step 403, main control computer and PLC module control gearshift and control servomotor rotation, and gearshift controls servomotor Rotational band is moved gear and is turned wheel rotation, and gearshift is rotated wheel and driven the gear level action of electromotor to be tested by gear-shifting bracing wire, makes Electromotor to be tested is sequentially switched to the most high-grade by neutral gear, and in shift process, main control computer controls clutch with PLC module Controlling servomotor to rotate, Clutch Control servomotor drives clutch to turn wheel rotation, and clutch rotates wheel by first Clutch cable action, first clutch bracing wire drives clutch operating connecting rod action, and clutch operating connecting rod is again by second Clutch cable drives the clutch control arm action of electromotor to be tested, it is achieved the throw-out-of clutch before gearshift controls and gearshift After clutch combine control；

Step 404, main control computer and PLC module control Throttle Opening Control servomotor and rotate, Throttle Opening Control servomotor Driving throttle to turn wheel rotation, throttle rotates wheel and drives the air throttle of electromotor to be tested to move by acceleration cable, makes to wait to try The air throttle issuing after examination and approval motivation reaches maximum position；

In step 405, engine working process to be tested, encoder is treated the rotating speed of test engine and is measured and by survey The rotating speed measured is transferred to PLC module, and PLC module is transmitted further to main control computer, when main control computer judges what it continuously received When repeatedly rotating speed difference is not more than 20r/min～70r/min, it is determined that treat that simulated target car load has reached stable maximum for be modeled Speed, now, main control computer is according to formulaBe calculated be modeled treat that simulated target car load is Big speed；Wherein, r be the driving wheel treating simulated target car load rolling radius and D_rimFor treating the rim diameter of simulated target car load, H_flat-ratioFor treating the aspect ratio of the tire of simulated target car load, W is for treating mould Intend the deflected width of tyre of target car load；I is the final drive ratio treating simulated target car load；n_maxDetect for now encoder Dynamometer machine motor corresponding to treating max. speed v of simulated target car load_maxMaximum (top) speed；

Step 5, carrying out treating that simulated target car load is started to walk acceleration motor dynamic analog test, detailed process is:

Step 501, measurement distance S that setting starting is accelerated on main control computer_q；

The target vehicle road resistance determined in step one is transferred to PLC module, PLC by step 502, main control computer Module is transmitted further to converter, and converter drives the measurement of power in dynamic analog dynamometer machine dynamo-electric according to target vehicle road resistance Machine, makes dynamic analog dynamometer machine be operated under road resistance simulation model；

Step 503, start electromotor to be tested；

Step 504, main control computer and PLC module control gearshift and control servomotor rotation, and gearshift controls servomotor Rotational band is moved gear and is turned wheel rotation, and gearshift is rotated wheel and driven the gear level action of electromotor to be tested by gear-shifting bracing wire, makes Electromotor to be tested is sequentially switched to the most high-grade by neutral gear, and in shift process, main control computer controls clutch with PLC module Controlling servomotor to rotate, Clutch Control servomotor drives clutch to turn wheel rotation, and clutch rotates wheel by first Clutch cable action, first clutch bracing wire drives clutch operating connecting rod action, and clutch operating connecting rod is again by second Clutch cable drives the clutch control arm action of electromotor to be tested, it is achieved the throw-out-of clutch before gearshift controls and gearshift After clutch combine control；

Step 505, main control computer and PLC module control Throttle Opening Control servomotor and rotate, Throttle Opening Control servomotor Driving throttle to turn wheel rotation, throttle rotates wheel and drives the air throttle of electromotor to be tested to move by acceleration cable, makes to wait to try The air throttle issuing after examination and approval motivation reaches maximum position；

During performing step 504～step 505, encoder is treated the rotating speed of test engine and is measured and by survey The rotating speed measured is transferred to PLC module, and PLC module is transmitted further to main control computer, and main control computer is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, when adopting When the speed until simulated target car load that sample obtains is more than 0, start timing, and according to formulaCalculate Obtain the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated operating range reaches to set in step 501 Measurement distance S that fixed starting is accelerated_qTime, stopping timing, the time now recorded is the pickup time of simulation；Its In, t_jRotating speed n is obtained for main control computer jth time sampling_jTime timing time；The value of j is the natural number of 1～N, and N is sampling Total degree and the natural number that value is 1～200；

Step 6, carrying out treating that simulated target car load surmounts acceleration motor dynamic analog test, detailed process is:

Step 601, set at main control computer and surmount measurement distance S of acceleration_CWith the initial velocity v surmounting acceleration₀；

The target vehicle road resistance determined in step one is transferred to PLC module, PLC by step 602, main control computer Module is transmitted further to converter, and converter drives the measurement of power in dynamic analog dynamometer machine dynamo-electric according to target vehicle road resistance Machine, makes dynamic analog dynamometer machine be operated under road resistance simulation model；

Step 603, start electromotor to be tested；

Step 604, main control computer and PLC module control gearshift and control servomotor rotation, and gearshift controls servomotor Rotational band is moved gear and is turned wheel rotation, and gearshift is rotated wheel and driven the gear level action of electromotor to be tested by gear-shifting bracing wire, makes Electromotor to be tested is sequentially switched to the most high-grade by neutral gear, and in shift process, main control computer controls clutch with PLC module Controlling servomotor to rotate, Clutch Control servomotor drives clutch to turn wheel rotation, and clutch rotates wheel by first Clutch cable action, first clutch bracing wire drives clutch operating connecting rod action, and clutch operating connecting rod is again by second Clutch cable drives the clutch control arm action of electromotor to be tested, it is achieved the throw-out-of clutch before gearshift controls and gearshift After clutch combine control；

Step 605, main control computer and PLC module control Throttle Opening Control servomotor and rotate, Throttle Opening Control servomotor Driving throttle to turn wheel rotation, throttle rotates wheel and drives the air throttle of electromotor to be tested to move by acceleration cable, makes to wait to try Issue after examination and approval the air throttle action of motivation；

During performing step 604～step 605, encoder is treated the rotating speed of test engine and is measured and by survey The rotating speed measured is transferred to PLC module, and PLC module is transmitted further to main control computer, and main control computer is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, and will Each calculated speed and the initial velocity v surmounting acceleration of setting in step 601₀Comparing, output is to Throttle Opening Control The control signal of servomotor rotating speed, Throttle Opening Control servomotor drives throttle to turn wheel rotation, and throttle rotates wheel and passes through throttle Bracing wire drives the air throttle motion of electromotor to be tested, makes to treat that the speed of simulated target car load maintains the initial speed surmounting acceleration Degree v₀；

Step 606, main control computer and PLC module control Throttle Opening Control servomotor and rotate, Throttle Opening Control servomotor Driving throttle to turn wheel rotation, throttle rotates wheel and drives the air throttle of electromotor to be tested to move by acceleration cable, makes to wait to try The air throttle issuing after examination and approval motivation increases aperture, starts timing, and according to formulaIt is calculated jth time to adopt The rotating speed n that sample obtains_jCorresponding operating range S_j, when calculated operating range reach in step 601 set surmount acceleration Measurement distance S_CTime, stop timing, what the time now recorded was simulation surmounts the acceleration time；

Step 7, carrying out treating simulated target car load grade climbing performance electromotor dynamic analog test, detailed process is:

Step 701, main control computer sets and treats simulated target complete vehicle curb weight m, angle of gradient α, the initial speed of climbing Degree, the air throttle target opening value of electromotor to be tested, the first timing distance and the second timing distance；

After the target vehicle road resistance determined in step one is added mgsin α by step 702, main control computer, transmission To PLC module, PLC module is transmitted further to converter, and converter drives plus the value after mgsin α according to target vehicle road resistance Dynamometer machine motor in dynamic dynamic analog dynamometer machine, makes dynamic analog dynamometer machine be operated under climbing road resistance simulation model；

Step 703, start electromotor to be tested；

Step 704, main control computer and PLC module control gearshift and control servomotor rotation, and gearshift controls servomotor Rotational band is moved gear and is turned wheel rotation, and gearshift is rotated wheel and driven the gear level action of electromotor to be tested by gear-shifting bracing wire, makes Electromotor to be tested is sequentially switched to one grade by neutral gear, and in shift process, main control computer controls clutch control with PLC module Servomotor processed rotates, and Clutch Control servomotor drives clutch to turn wheel rotation, clutch rotate wheel by first from Clutch bracing wire action, first clutch bracing wire drive clutch operating connecting rod action, clutch operating connecting rod again by second from Clutch bracing wire drives the clutch control arm action of electromotor to be tested, it is achieved the throw-out-of clutch before gearshift controls and after gearshift Clutch combine control；

Step 705, main control computer and PLC module control Throttle Opening Control servomotor and rotate, Throttle Opening Control servomotor Driving throttle to turn wheel rotation, throttle rotates wheel and drives the air throttle of electromotor to be tested to move by acceleration cable, makes to wait to try Issue after examination and approval the air throttle action of motivation, make the air throttle of electromotor to be tested reach the air throttle target aperture set in step 701 Value；

During performing step 704～step 705, encoder is treated the rotating speed of test engine and is measured and by survey The rotating speed measured is transferred to PLC module, and PLC module is transmitted further to main control computer, and main control computer is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, when adopting When the speed until simulated target car load that sample obtains reaches the climbing initial velocity set in step 701, beginning timing, and according to FormulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated When operating range reaches the first timing distance set in step 701, stop timing, when the time now recorded is the first timing Between；And the first stopping timing time being recorded as the second beginning timing initial time, and according to formula It is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated operating range reaches step 701 During the second timing distance of middle setting, stopping timing, the time now recorded is the second timing time；Relatively the second timing time With the first timing time, when the second timing time less than or equal to the first timing time time, it is judged that for treating that simulated target car load is climbed Performance meets requirement under the angle of gradient set, otherwise, when the second timing time is more than the first timing time, it is judged that for treating mould Intend target car load grade climbing performance and be unsatisfactory for requirement under the angle of gradient set.

Above-mentioned method, it is characterised in that the method is further comprising the steps of:

Step 8, carrying out treating simulated target car load constant speed fuel oil consumption of engine dynamic analog test, detailed process is:

Step 801, main control computer sets constant speed fuel oil consumption measure speed and distance；

The target vehicle road resistance determined in step one is transferred to PLC module, PLC by step 802, main control computer Module is transmitted further to converter, and converter drives the measurement of power in dynamic analog dynamometer machine dynamo-electric according to target vehicle road resistance Machine, makes dynamic analog dynamometer machine be operated under road resistance simulation model；

Step 803, start electromotor to be tested；

Step 804, main control computer and PLC module control gearshift and control servomotor rotation, and gearshift controls servomotor Rotational band is moved gear and is turned wheel rotation, and gearshift is rotated wheel and driven the gear level action of electromotor to be tested by gear-shifting bracing wire, makes Electromotor to be tested is sequentially switched to the most high-grade by neutral gear, and in shift process, main control computer controls clutch with PLC module Controlling servomotor to rotate, Clutch Control servomotor drives clutch to turn wheel rotation, and clutch rotates wheel by first Clutch cable action, first clutch bracing wire drives clutch operating connecting rod action, and clutch operating connecting rod is again by second Clutch cable drives the clutch control arm action of electromotor to be tested, it is achieved the throw-out-of clutch before gearshift controls and gearshift After clutch combine control；

Step 805, main control computer and PLC module control Throttle Opening Control servomotor and rotate, Throttle Opening Control servomotor Driving throttle to turn wheel rotation, throttle rotates wheel and drives the air throttle of electromotor to be tested to move by acceleration cable, makes to wait to try Issuing after examination and approval the air throttle action of motivation, the constant speed fuel oil consumption making the air throttle of electromotor to be tested reach to set in step 801 is surveyed The target throttle opening value that amount speed is corresponding；

During performing step 804～step 805, encoder is treated the rotating speed of test engine and is measured and by survey The rotating speed measured is transferred to PLC module, and PLC module is transmitted further to main control computer, and main control computer is according to formulaIt is calculated the rotating speed n that rotating speed jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, And by each calculated speed compared with the constant speed fuel oil consumption measurement speed set in step 801, output is to throttle Controlling the control signal of servomotor rotating speed, Throttle Opening Control servomotor drives throttle to turn wheel rotation, and throttle rotates wheel to be passed through Acceleration cable drives the air throttle motion of electromotor to be tested, makes to treat the quick burning such as grade that the speed of simulated target car load maintains setting Oil consumption measures speed；

Step 806, beginning timing, and according to formulaBe calculated that jth time sampling obtains turns Speed n_jCorresponding operating range S_j, when calculated operating range reach in step 801 set constant speed fuel oil consumption measure away from From time, stop timing；

During step 806, fuel consumption meter is treated the fuel consumption of simulated target car load and is measured, and will measure To the fuel consumption treating simulated target car load be transferred to main control computer；

Step 807, the constant speed fuel oil consumption measurement speed changed in step 801, repeated execution of steps 802～step 806, Measure and obtain the constant speed fuel consumption treating simulated target car load that multiple speed is corresponding；

Step 9, carrying out treating simulated target car load operating condition method fuel oil consumption of engine dynamic analog test, detailed process is:

Step 901, on main control computer set treat simulated target car load condition model；

The target vehicle road resistance determined in step one is transferred to PLC module, PLC by step 902, main control computer Module is transmitted further to converter, and converter drives the measurement of power in dynamic analog dynamometer machine dynamo-electric according to target vehicle road resistance Machine, makes dynamic analog dynamometer machine be operated under road resistance simulation model；

Step 903, start electromotor to be tested；

Throttle operation mechanism 9, clutch operating mechanism 10 and Gear shift operation mechanism 11 are entered by step 904, main control computer Row controls, and set in simulation steps 901 treats simulated target car load condition model；Main control computer controls gearshift with PLC module Controlling servomotor to rotate, gearshift control servomotor rotational band is moved gear and is turned wheel rotation, and gearshift is rotated wheel and drawn by gearshift Line drives the gear level action of electromotor to be tested, makes electromotor to be tested carry out gear shift operation；In shift process, master control meter Calculation machine and PLC module control Clutch Control servomotor and rotate, and Clutch Control servomotor drives clutch to rotate round Dynamic, clutch rotates wheel and drives clutch operating connecting rod action by first clutch bracing wire action, first clutch bracing wire, from Clutch operator link drives the clutch control arm action of electromotor to be tested again by second clutch bracing wire, it is achieved before gearshift Throw-out-of clutch control with shift gears after clutch be combined control；Main control computer controls Throttle Opening Control servo with PLC module Electric machine rotation, Throttle Opening Control servomotor drives throttle to turn wheel rotation, and throttle is rotated wheel and driven by acceleration cable to be tested The air throttle motion of electromotor, makes the air throttle action of electromotor to be tested, makes the air throttle of electromotor to be tested reach step The target throttle opening value that on the performance curve of the condition model set in 901, each point speed is corresponding；

During step 904, fuel consumption meter is treated the fuel consumption of simulated target car load and is measured, and will measure To the fuel consumption treating simulated target car load be transferred to main control computer.

Above-mentioned method, it is characterised in that: step one is determined the concrete mistake of the target vehicle road resistance being modeled Cheng Wei:

Step 101, main control computer sets and treats the rim diameter D of simulated target car load_rim, treat simulated target car load The aspect ratio H of tire_flat-ratio, treat simulated target car load deflected width of tyre W and treat simulated target car load final stage pass Move and compare i；And front-wheel resistance to rolling a of simulated target car load is treated in setting on main control computer₀With coefficient of air resistance b；

Step 102, main control computer machine are according to formulaIt is calculated dynamometer machine motor corresponding to treating Max. speed v of simulated target car load_maxMaximum (top) speed n_max, wherein, r is the rolling half of the driving wheel treating simulated target car load Footpath and

Dynamometer machine motor is corresponded to treat max. speed v of simulated target car load by step 103, main control computer_maxMaximum Rotating speed n_maxBeing transferred to PLC module, PLC module is transmitted further to converter, the dynamometer machine in transducer drive dynamic analog dynamometer machine Motor, runs to, corresponding to after the maximum (top) speed of simulated target car load max. speed, stop entering the rotating speed of dynamometer machine motor Row controls, and makes the simulation of dynamic analog dynamometer machine treat that simulated target car load slides into the cunning of resting state on road from max. speed Row process；

Slide in simulation process, encoder the rotating speed of dynamometer machine motor is measured and by measurement to rotating speed be transferred to PLC module, PLC module is transmitted further to main control computer, and main control computer is according to formulaIt is calculated Sample for j time the rotating speed n obtained_jCorresponding speed v treating simulated target car load_j, further according to formula F_E,j=a₀+b×v_j ²Calculate To speed v treating simulated target car load_jCorresponding road resistance F_E,j, further according to formulaIt is calculated road Resistance F_E,jCorresponding engine output shaft moment of torsion M_E,j, then, main control computer is by road resistance F_E,jCorresponding electromotor output Axle moment of torsion M_E,jBeing transferred to PLC module, PLC module is transmitted further to converter, and converter is according to road resistance F_E,jCorresponding starts Machine output shaft torque M_E,jChange the size of the exciting current of its output, drive the dynamometer machine motor in dynamic analog dynamometer machine, make The moment of torsion of dynamometer machine motor and road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,jEqual；Meanwhile, force transducer is to survey The moment of torsion of merit electromechanics machine measures and measurement moment of torsion is transferred to PLC module, and PLC module is transmitted further to main control computer, main Control computer records measuring moment of torsion and stores；

What step 104, main control computer were received treats speed v of simulated target car load_jCorresponding measurement moment of torsion with According to formulaIt is calculated speed v treating simulated target car load_jCorresponding road resistance F_E,jCorresponding sends out Motivation output shaft torque M_E,jCompare, when the n times measurement torque that obtains of sampling and calculated engine output shaft moment of torsion When difference is not all in the range of the 2%～10% of calculated engine output shaft moment of torsion, repeated execution of steps 105, Until n times are sampled, the measurement torque and calculated engine output shaft torque difference obtained is all at calculated electromotor In the range of the 2%～10% of output shaft torque；

Dynamometer machine motor is corresponded to treat max. speed v of simulated target car load by step 105, main control computer_maxMaximum Rotating speed n_maxBeing transferred to PLC module, PLC module is transmitted further to converter, the dynamometer machine in transducer drive dynamic analog dynamometer machine Motor, runs to dynamometer machine motor corresponding to treating max. speed v of simulated target car load_maxMaximum (top) speed n_maxAfter, it is right to stop The rotating speed of dynamometer machine motor is controlled, make dynamic analog dynamometer machine simulation treat simulated target car load on road from max. speed Slide into the taxiing procedures of resting state；

Slide in simulation process, encoder the rotating speed of dynamometer machine motor is measured and by measurement to rotating speed be transferred to PLC module, PLC module is transmitted further to main control computer, and main control computer is according to formulaIt is calculated Sample for j time the rotating speed n obtained_jCorresponding speed v treating simulated target car load_j, and inquire about be stored therein treat that simulated target is whole Speed v of car_jThe corresponding last time slide in simulation process in measurement moment of torsion, the survey during the last time is slided in simulation process Amount moment of torsion is transferred to PLC module, and PLC module is transmitted further to converter, during converter slided in simulation process according to the last time Measure the size that moment of torsion changes the exciting current of its output, drive the dynamometer machine motor in dynamic analog dynamometer machine, make dynamometer machine It is equal that the moment of torsion of motor slides the measurement moment of torsion in simulation process with the last time；Meanwhile, the force transducer torsion to dynamometer machine motor Square measures and measurement moment of torsion is transferred to PLC module, and PLC module is transmitted further to main control computer, and main control computer is to survey Amount moment of torsion records and stores；

Step 106, main control computer are defined as performing the measurement moment of torsion that step 105 records and store for the last time by mould The target vehicle road resistance intended.

The present invention compared with prior art has the advantage that

1, the simple in construction of dynamic analog engine test system of the present invention, novel in design reasonable, it is achieved convenient and cost Low.

2, the dynamic analog engine test system of the present invention, it is achieved that simulate vehicle performance on threst stand The function (power performance, fuel-economy performance etc.) of test, complete function, and use simple operation.

3, the dynamic analog engine test system of the present invention, simulated inertia is inertia and the electricity mould of dynamic analog dynamometer machine Intend inertia sum, the inertia of dynamic analog dynamometer machine be the output shaft of the inertia of described inertial flywheel, dynamometer machine motor inertia, The inertia of flywheel shaft shaft coupling and the inertia sum of dynamometer machine main spindle coupling, electrical analogue inertia is to measurement of power by control system The rotating speed of dynamo-electric machine is controlled the inertia obtained, by inertia and the electrical analogue inertia of this dynamic analog dynamometer machine, it is possible to real Now treat the accurate simulation of the inertia of simulated target car load；The moment of torsion of dynamometer machine motor is controlled, additionally it is possible to real by control system Now treat the simulation of road resistance corresponding to the speed of simulated target car load, solve existing dynamometer machine on engine pedestal not Can correctly carry out a difficult problem for car load inertia simulation.

4, the clutch control mechanism of the present invention, is made up of servomotor, leverage, drag-line, by leverage, and can So that servomotor pulls engine clutch with less power, it is achieved the flexible operating to tested engine clutch.

5, the present invention's is practical, it is achieved low cost, and using effect is good, it is simple to promote the use of.

In sum, the present invention is novel in design rationally, easy to install, it is achieved low cost, and functional reliability is high, uses Life-span is long, effectively can carry out the simulation of vehicle performance on engine pedestal, reduces development experiments cost, practical, uses Effective, it is simple to promote the use of；When solving engine test of the prior art, it is impossible to accurately carry out car load inertia simulation Defect.

Below by drawings and Examples, technical scheme is described in further detail.

Accompanying drawing explanation

Fig. 1 is the structural representation of dynamic analog engine test system in Example 1 and Example 2 of the present invention.

Fig. 2 is control system and the annexation schematic diagram of other each elements in Example 1 and Example 2 of the present invention.

Fig. 3 is the structural representation of dynamic analog dynamometer machine in the embodiment of the present invention 1.

Fig. 4 is the front view of monoblock type inertial flywheel in the embodiment of the present invention 1.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the structural representation of dynamic analog dynamometer machine in the embodiment of the present invention 2.

Fig. 7 is the front view of monoblock type inertial flywheel in the embodiment of the present invention 2.

Fig. 8 is the left view of Fig. 7.

Description of reference numerals:

1 control system；1-1 main control computer；1-2 PLC module；

1-3 converter；2 engine speed sensors；3 dynamic analog dynamometer machines；

3-1 encoder；3-2 flywheel bearing supports；

3-3 monoblock type inertial flywheel；3-31 integral flywheel body；

3-32 integral flywheel installing hole；3-4 connects flywheel shaft；

3-5 the second inertial flywheel bearings；3-6 flywheel shaft shaft coupling；

3-7 base；3-8 the first motor bearings supports；

3-9 dynamometer machine motor；3-10 force transducer；

3-11 the second motor bearings supports；3-12 dynamometer machine main spindle coupling；

3-13 flanged type inertial flywheel；3-131 flanged type flywheel body；

3-132 flanged type flywheel installing hole；3-133 loss of weight technology groove；

4 gas leak meters；5 fuel consumption meters；6-1 the first temperature sensing；

6-2 the second temperature sensing；6-3 the 3rd temperature sensing；6-4 the 4th temperature sensing；

7 Air/Fuel ratio analysis instrument；8-1 the first pressure transducer；8-2 the second pressure transducer；

8-3 the 3rd pressure transducer；9 throttle operation mechanisms；

9-1 Throttle Opening Control servomotor；9-2 throttle rotates wheel；

9-3 acceleration cable；10 clutch operating mechanisms；

10-1 Clutch Control servomotor；10-2 clutch rotates wheel；

10-3 first clutch bracing wire；10-4 clutch operating connecting rod；

10-5 second clutch bracing wire；11 Gear shift operation mechanism；

11-1 gearshift controls servomotor；11-2 gearshift rotates wheel；

11-3 gear-shifting bracing wire；12 install electromotor to be tested；

13 engine pedestals；

Detailed description of the invention

Embodiment 1

As it is shown in figure 1, the dynamic analog engine test system of the present invention, including dynamic analog dynamometer machine 3, sensing detection System, control system 1 and for installing the engine pedestal 13 of electromotor 12 to be tested, and be used for operating electromotor to be tested Throttle operation mechanism 9, clutch operating mechanism 10 and the Gear shift operation mechanism 11 of 12；

In conjunction with Fig. 3, described dynamic analog dynamometer machine 3 include base 3-7 and be fixedly connected on first on base 3-7 be used to Property flywheel bearing supports 3-2, the second inertial flywheel bearings 3-5, the first motor bearings support 3-8 and the second motor bearings and prop up Support 3-11, described first inertial flywheel bearings 3-2 and the second inertial flywheel bearings 3-5 are provided with flywheel shaft 3-4, On one section of flywheel shaft 3-4 between described first inertial flywheel bearings 3-2 and the second inertial flywheel bearings 3-5 Connecting and have inertial flywheel, described first motor bearings supports 3-8 and the second motor bearings supports and is provided with dynamometer machine between 3-11 Motor 3-9, the two ends output shaft of described dynamometer machine motor 3-9 is separately mounted to the first motor bearings and supports 3-8 and the second motor In bearings 3-11, the described dynamometer machine motor 3-9 output shaft near described inertial flywheel side passes through flywheel shaft shaft coupling 3-6 is connected with flywheel shaft 3-4, described dynamometer machine motor 3-9 away from the output shaft of described inertial flywheel side connect have for Connecting the dynamometer machine main spindle coupling 3-12 of the output shaft of electromotor 12 to be tested, the end of described flywheel shaft 3-4 connects useful In the encoder 3-1 that the rotating speed of flywheel shaft 3-4 is measured, the shell of described dynamometer machine motor 3-9 is provided with one end with The shell of dynamometer machine motor 3-9 is fixed connection, the other end and is fixed with base 3-7 and be connected and for the torsion to dynamometer machine motor 3-9 The force transducer 3-10 that square measures；

As it is shown in figure 1, described throttle operation mechanism 9 includes that Throttle Opening Control servomotor 9-1, throttle rotate wheel 9-2 and oil Door bracing wire 9-3, described rotation wheel 9-2 are fixedly connected on the output shaft of Throttle Opening Control servomotor 9-1, described acceleration cable 9- 3 are wrapped in throttle rotates on wheel 9-2, and the air throttle of described electromotor 12 to be tested is connected with acceleration cable 9-3；

As it is shown in figure 1, described clutch operating mechanism 10 includes that Clutch Control servomotor 10-1, clutch rotate wheel 10-2, first clutch bracing wire 10-3, clutch operating connecting rod 10-4 and second clutch bracing wire 10-5, described clutch rotates Wheel 10-2 is fixedly connected on the output shaft of Clutch Control servomotor 10-1, one end of described first clutch bracing wire 10-3 Being wrapped in clutch and rotate on wheel 10-2, the other end of described first clutch bracing wire 10-3 is with clutch operating connecting rod 10-4 even Connecing, one end of described second clutch bracing wire 10-5 is connected with clutch operating connecting rod 10-4, described electromotor 12 to be tested Clutch control arm is connected with the other end of second clutch bracing wire 10-5；

As it is shown in figure 1, described Gear shift operation mechanism 11 include gearshift control servomotor 11-1, gearshift rotate wheel 11-2 and Gear-shifting bracing wire 11-3, described gearshift rotates wheel 11-2 and is fixedly connected on the output shaft of gearshift control servomotor 11-1, described Gear-shifting bracing wire 11-3 is wrapped in gearshift and rotates on wheel 11-2, and the gear level of described electromotor 12 to be tested is with gear-shifting bracing wire 11-3 even Connect；

In conjunction with Fig. 2, described control system 1 includes PLC module 1-that main control computer 1-1 connects with main control computer 1-1 2 and the converter 1-3, described encoder 3-1 and force transducer 3-10 that connect with PLC module 1-2 all defeated with PLC module 1-2 Entering end to connect, described Throttle Opening Control servomotor 9-1, Clutch Control servomotor 10-1 and gearshift control servomotor 11-1 All being connected with the outfan of PLC module 1-2, described dynamometer machine motor 3-9 is connected with converter 1-3；

In conjunction with Fig. 2, described sensing and detecting system includes detecting for the fuel consumption treating test engine 12 Fuel consumption meter 5, described fuel consumption meter 5 is connected with the input of PLC module 1-2.

As in figure 2 it is shown, in the present embodiment, described sensing and detecting system also includes the bent axle for treating test engine 12 Gas leak meter 4 that case air leak amount carries out detecting, for treating the sky that air-fuel ratio when test engine 12 burns carries out detecting Fire than analyser 7, carry out detecting for the spark-plug gasket temperature treating test engine 12 the first temperature sensor 6-1, For treating the second temperature sensor 6-2 that the oil temperature of test engine 12 carries out detecting, for treating test engine Three-temperature sensor 6-3 that the intake air temperature of 12 carries out detecting, examine for treating the fuel oil temperature of test engine 12 The 4th temperature sensor 6-4 surveyed, the admission pressure being used for treating test engine 12 carry out the first pressure transducer detected 8-1, for treating the second pressure transducer 8-2 that test engine 12 pressure at expulsion carries out detecting, for starting to be tested The fuel pressure of machine 12 carries out the 3rd pressure transducer 8-3 that detects and carries out for treating the pulse rotating speed of test engine 12 The engine speed sensor 2 of detection, described gas leak meter 4 and Air/Fuel ratio analysis instrument 7 be all connected with main control computer 1-1, Described first temperature sensor 6-1, the second temperature sensor 6-2, three-temperature sensor 6-3, the 4th temperature sensor 6-4, First pressure transducer 8-1, the second pressure transducer 8-2, the 3rd pressure transducer 8-3 and engine speed sensor 2 all with The input of PLC module 1-2 connects.

As shown in Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, described inertial flywheel is monoblock type inertial flywheel 3-3, described whole Body formula inertial flywheel 3-3 includes discoidal integral flywheel body 3-31 and is arranged on the center of integral flywheel body 3-31 Position and for connecting the integral flywheel installing hole 3-32 of flywheel shaft 3-4.

In the present embodiment, described dynamometer machine motor 3-9 is frequency conversion timing AC motor.

In the present embodiment, described encoder 3-1 is optical-electricity encoder.

The dynamic analog engine test method of the present invention, comprises the following steps:

Step one, determine and treat road resistance that the vehicle of simulated target car load is corresponding and be stored in main control computer 1-1；

In the present embodiment, step one being determined, the detailed process of the target vehicle road resistance being modeled is:

Step 101, main control computer 1-1 sets and treats the rim diameter D of simulated target car load_rim, treat that simulated target is whole The aspect ratio H of the tire of car_flat-ratio, treat the deflected width of tyre W of simulated target car load and treat the final stage of simulated target car load Gear ratio i；And front-wheel resistance to rolling a of simulated target car load is treated in setting on main control computer 1-1₀With coefficient of air resistance b；

Step 102, main control computer 1-1 machine are according to formulaIt is calculated dynamometer machine motor 9 corresponding In max. speed v treating simulated target car load_maxMaximum (top) speed n_max, wherein, r is the rolling of the driving wheel treating simulated target car load Dynamic radius and

Dynamometer machine motor 9 is corresponded to treat max. speed v of simulated target car load by step 103, main control computer 1-1_max's Maximum (top) speed n_maxBeing transferred to PLC module 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog Dynamometer machine motor 3-9 in dynamometer machine 3, runs to, corresponding to after the maximum (top) speed of simulated target car load max. speed, stop The rotating speed of dynamometer machine motor 3-9 is controlled, make dynamic analog dynamometer machine 3 simulation treat simulated target car load on road from High speed slides into the taxiing procedures of resting state；

Slide in simulation process, the rotating speed that the rotating speed of dynamometer machine motor 3-9 is measured and measurement arrived by encoder 3-1 Being transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, and main control computer 1-1 is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, then root According to formula F_E,j=a₀+b×v_j ²It is calculated speed v treating simulated target car load_jCorresponding road resistance F_E,j, further according to formulaIt is calculated road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,j, then, main control computer 1-1 will Road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,jBeing transferred to PLC module 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 is according to road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,jChange the big of its exciting current exported Little, drive the dynamometer machine motor 3-9 in dynamic analog dynamometer machine 3, make moment of torsion and the road resistance F of dynamometer machine motor 3-9_E,jRight The engine output shaft moment of torsion M answered_E,jEqual；Meanwhile, the moment of torsion of dynamometer machine motor 3-9 is measured also by force transducer 3-10 Measurement moment of torsion is transferred to PLC module 1-2, and PLC module 1-2 is transmitted further to main control computer 1-1, and main control computer 1-1 is to survey Amount moment of torsion records and stores；

Speed v treating simulated target car load that step 104, main control computer 1-1 are received_jCorresponding measurement moment of torsion With according to formulaIt is calculated speed v treating simulated target car load_jCorresponding road resistance F_E,jCorresponding Engine output shaft moment of torsion M_E,jComparing, the measurement torque obtained when n times sampling is turned round with calculated engine output shaft When square difference is not all in the range of the 2%～10% of calculated engine output shaft moment of torsion, repeated execution of steps 105, until n times are sampled, the measurement torque and calculated engine output shaft torque difference obtained is all at calculated In the range of the 2%～10% of motivation output shaft torque；

Dynamometer machine motor 9 is corresponded to treat max. speed v of simulated target car load by step 105, main control computer 1-1_max's Maximum (top) speed n_maxBeing transferred to PLC module 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog Dynamometer machine motor 3-9 in dynamometer machine 3, runs to dynamometer machine motor 9 corresponding to treating max. speed v of simulated target car load_max's Maximum (top) speed n_maxAfter, stop the rotating speed of dynamometer machine motor 3-9 is controlled, make dynamic analog dynamometer machine 3 simulate mesh to be simulated Mark car load slides into the taxiing procedures of resting state on road from max. speed；

Slide in simulation process, the rotating speed that the rotating speed of dynamometer machine motor 3-9 is measured and measurement arrived by encoder 3-1 Being transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, and main control computer 1-1 is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, and look into Ask speed v treating simulated target car load being stored therein_jThe corresponding last time slide in simulation process in measurement moment of torsion, will Last time slide in simulation process in measurement moment of torsion be transferred to PLC module 1-2, PLC module 1-2 is transmitted further to converter 1-3, Moment of torsion of measuring during converter 1-3 slided in simulation process according to the last time changes the size of its exciting current exported, and drives Dynamometer machine motor 3-9 in dynamic analog dynamometer machine 3, makes the moment of torsion of dynamometer machine motor 3-9 and last time slide in simulation process Measurement moment of torsion equal；Meanwhile, the moment of torsion of dynamometer machine motor 3-9 is measured and will measurement moment of torsion transmission by force transducer 3-10 To PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, main control computer 1-1 and carries out record to measuring moment of torsion And storage；

Step 106, main control computer 1-1 are defined as performing the measurement moment of torsion that step 105 records and store for the last time The target vehicle road resistance being modeled.

Step 2, electromotor 12 to be tested is fixed on engine pedestal 13, and by the output of electromotor 12 to be tested Axle is connected with dynamometer machine main spindle coupling 3-12；

Step 3, the air throttle of electromotor 12 to be tested is connected with the acceleration cable 9-3 in throttle operation mechanism 9, will The clutch control arm of electromotor 12 to be tested is connected with the second clutch bracing wire 10-5 in clutch operating mechanism 10, and will The gear level of electromotor 12 to be tested is connected with the gear-shifting bracing wire 11-3 in Gear shift operation mechanism 11；

Step 401, main control computer 1-1 are by road corresponding for the vehicle treating simulated target car load determined in step one Resistance is transferred to PLC module 1-2, and PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog dynamometer machine 3 In dynamometer machine motor 3-9, make dynamic analog dynamometer machine 3 be operated under road resistance simulation model；

Step 402, start electromotor 12 to be tested；

Step 403, main control computer 1-1 and PLC module 1-2 control gearshift and control servomotor 11-1 rotation, gearshift control Servomotor 11-1 rotational band processed is moved gear and is rotated wheel 11-2 rotation, and gearshift is rotated wheel 11-2 and treated by gear-shifting bracing wire 11-3 drive The gear level action of test engine 12, makes electromotor 12 to be tested be sequentially switched to the most high-grade by neutral gear, in shift process, Main control computer 1-1 and PLC module 1-2 control Clutch Control servomotor 10-1 and rotate, Clutch Control servomotor 10- 1 drives clutch to rotate wheel 10-2 rotates, and clutch rotates wheel 10-2 by first clutch bracing wire 10-3 action, the first clutch Device bracing wire 10-3 drives clutch operating connecting rod 10-4 action, and clutch operating connecting rod 10-4 is again by second clutch bracing wire 10-5 drives the clutch control arm action of electromotor 12 to be tested, it is achieved the throw-out-of clutch before gearshift controls and after gearshift Clutch combines and controls；

Step 404, main control computer 1-1 and PLC module 1-2 control Throttle Opening Control servomotor 9-1 and rotate, Throttle Opening Control Servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 and drives electromotor to be tested by acceleration cable 9-3 The air throttle motion of 12, makes the air throttle of electromotor 12 to be tested reach maximum position；

In step 405, electromotor to be tested 12 work process, encoder 3-1 treats the rotating speed of test engine 12 and carries out Measure and by measurement to rotating speed be transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, when master control meter Calculation machine 1-1 judges when its repeatedly rotating speed difference continuously received is not more than 20r/min～70r/min, it is determined that for be modeled Treating that simulated target car load has reached stable the max speed, now, main control computer 1-1 is according to formulaIt is calculated the max speed treating simulated target car load being modeled；Wherein, r is for treating simulated target The rolling radius of the driving wheel of car load andD_rimFor treating the wheel rim of simulated target car load Diameter, H_flat-ratioFor treating the aspect ratio of the tire of simulated target car load, W is the deflected width of tyre treating simulated target car load；i For treating the final drive ratio of simulated target car load；n_maxCorrespond to treat mould for the dynamometer machine motor 9 that now encoder 3-1 detects Intend max. speed v of target car load_maxMaximum (top) speed；

Step 501, measurement distance S that setting starting is accelerated on main control computer 1-1_q；

The target vehicle road resistance determined in step one is transferred to PLC module by step 502, main control computer 1-1 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog measurement of power according to target vehicle road resistance Dynamometer machine motor 3-9 in machine 3, makes dynamic analog dynamometer machine 3 be operated under road resistance simulation model；

Step 503, start electromotor 12 to be tested；

Step 504, main control computer 1-1 and PLC module 1-2 control gearshift and control servomotor 11-1 rotation, gearshift control Servomotor 11-1 rotational band processed is moved gear and is rotated wheel 11-2 rotation, and gearshift is rotated wheel 11-2 and treated by gear-shifting bracing wire 11-3 drive The gear level action of test engine 12, makes electromotor 12 to be tested be sequentially switched to the most high-grade by neutral gear, in shift process, Main control computer 1-1 and PLC module 1-2 control Clutch Control servomotor 10-1 and rotate, Clutch Control servomotor 10- 1 drives clutch to rotate wheel 10-2 rotates, and clutch rotates wheel 10-2 by first clutch bracing wire 10-3 action, the first clutch Device bracing wire 10-3 drives clutch operating connecting rod 10-4 action, and clutch operating connecting rod 10-4 is again by second clutch bracing wire 10-5 drives the clutch control arm action of electromotor 12 to be tested, it is achieved the throw-out-of clutch before gearshift controls and after gearshift Clutch combines and controls；

Step 505, main control computer 1-1 and PLC module 1-2 control Throttle Opening Control servomotor 9-1 and rotate, Throttle Opening Control Servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 and drives electromotor to be tested by acceleration cable 9-3 The air throttle motion of 12, makes the air throttle of electromotor 12 to be tested reach maximum position；

During performing step 504～step 505, encoder 3-1 treats the rotating speed of test engine 12 and measures And by measurement to rotating speed be transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, main control computer 1- 1 according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jThe corresponding car treating simulated target car load Speed v_j, when the speed until simulated target car load that sampling obtains is more than 0, start timing, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated row Sail measurement distance S of the starting acceleration that distance reaches to set in step 501_qTime, stopping timing, the time now recorded is mould The pickup time intended；Wherein, t_jRotating speed n is obtained for main control computer 1-1 jth time sampling_jTime timing time；The value of j Being the natural number of 1～N, N is sampling total degree and natural number that value is 1～200；

Step 601, set at main control computer 1-1 and surmount measurement distance S of acceleration_CWith the initial velocity v surmounting acceleration₀；

The target vehicle road resistance determined in step one is transferred to PLC module by step 602, main control computer 1-1 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog measurement of power according to target vehicle road resistance Dynamometer machine motor 3-9 in machine 3, makes dynamic analog dynamometer machine 3 be operated under road resistance simulation model；

Step 603, start electromotor 12 to be tested；

Step 604, main control computer 1-1 and PLC module 1-2 control gearshift and control servomotor 11-1 rotation, gearshift control Servomotor 11-1 rotational band processed is moved gear and is rotated wheel 11-2 rotation, and gearshift is rotated wheel 11-2 and treated by gear-shifting bracing wire 11-3 drive The gear level action of test engine 12, makes electromotor 12 to be tested be sequentially switched to the most high-grade by neutral gear, in shift process, Main control computer 1-1 and PLC module 1-2 control Clutch Control servomotor 10-1 and rotate, Clutch Control servomotor 10- 1 drives clutch to rotate wheel 10-2 rotates, and clutch rotates wheel 10-2 by first clutch bracing wire 10-3 action, the first clutch Device bracing wire 10-3 drives clutch operating connecting rod 10-4 action, and clutch operating connecting rod 10-4 is again by second clutch bracing wire 10-5 drives the clutch control arm action of electromotor 12 to be tested, it is achieved the throw-out-of clutch before gearshift controls and after gearshift Clutch combines and controls；

Step 605, main control computer 1-1 and PLC module 1-2 control Throttle Opening Control servomotor 9-1 and rotate, Throttle Opening Control Servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 and drives electromotor to be tested by acceleration cable 9-3 The air throttle motion of 12, makes the air throttle action of electromotor 12 to be tested；

During performing step 604～step 605, encoder 3-1 treats the rotating speed of test engine 12 and measures And by measurement to rotating speed be transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, main control computer 1- 1 according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jThe corresponding car treating simulated target car load Speed v_j, and by each calculated speed and the initial velocity v surmounting acceleration of setting in step 601₀Comparing, it is right to export The control signal of Throttle Opening Control servomotor 9-1 rotating speed, Throttle Opening Control servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, oil Door rotates wheel 9-2 and drives the air throttle of electromotor 12 to be tested to move by acceleration cable 9-3, makes to treat the car of simulated target car load Speed maintains the initial velocity v surmounting acceleration₀；

Step 606, main control computer 1-1 and PLC module 1-2 control Throttle Opening Control servomotor 9-1 and rotate, Throttle Opening Control Servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 and drives electromotor to be tested by acceleration cable 9-3 The air throttle motion of 12, makes the air throttle of electromotor 12 to be tested increase aperture, starts timing, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated row Sail measurement distance S surmounting acceleration that distance reaches to set in step 601_CTime, stopping timing, the time now recorded is mould That intends surmounts the acceleration time；

Step 701, main control computer 1-1 sets and treats that simulated target complete vehicle curb weight m, angle of gradient α, climbing are initial Speed, the air throttle target opening value of electromotor to be tested 12, the first timing distance and the second timing distance；

After the target vehicle road resistance determined in step one is added mgsin α by step 702, main control computer 1-1, Being transferred to PLC module 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and adds according to target vehicle road resistance Value after upper mgsin α drives the dynamometer machine motor 3-9 in dynamic analog dynamometer machine 3, makes dynamic analog dynamometer machine 3 be operated in and climbs Under the road resistance simulation model of slope；

Step 703, start electromotor 12 to be tested；

Step 704, main control computer 1-1 and PLC module 1-2 control gearshift and control servomotor 11-1 rotation, gearshift control Servomotor 11-1 rotational band processed is moved gear and is rotated wheel 11-2 rotation, and gearshift is rotated wheel 11-2 and treated by gear-shifting bracing wire 11-3 drive The gear level action of test engine 12, makes electromotor 12 to be tested be sequentially switched to one grade by neutral gear, in shift process, main Control computer 1-1 and PLC module 1-2 control Clutch Control servomotor 10-1 and rotate, Clutch Control servomotor 10-1 Driving clutch to rotate wheel 10-2 to rotate, clutch rotates wheel 10-2 by first clutch bracing wire 10-3 action, the first clutch Device bracing wire 10-3 drives clutch operating connecting rod 10-4 action, and clutch operating connecting rod 10-4 is again by second clutch bracing wire 10-5 drives the clutch control arm action of electromotor 12 to be tested, it is achieved the throw-out-of clutch before gearshift controls and after gearshift Clutch combines and controls；

Step 705, main control computer 1-1 and PLC module 1-2 control Throttle Opening Control servomotor 9-1 and rotate, Throttle Opening Control Servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 and drives electromotor to be tested by acceleration cable 9-3 The air throttle motion of 12, makes the air throttle action of electromotor 12 to be tested, makes the air throttle of electromotor 12 to be tested reach step The air throttle target opening value set in 701；

During performing step 704～step 705, encoder 3-1 treats the rotating speed of test engine 12 and measures And by measurement to rotating speed be transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, main control computer 1- 1 according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jThe corresponding car treating simulated target car load Speed v_j, when the speed until simulated target car load that sampling obtains reaches the climbing initial velocity set in step 701, start meter Time, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when When calculated operating range reaches the first timing distance set in step 701, stopping timing, the time now recorded is First timing time；And the first stopping timing time being recorded as the second beginning timing initial time, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated row When sailing the second timing distance that distance reaches setting in step 701, stop timing, when the time now recorded is the second timing Between；Relatively the second timing time and the first timing time, when the second timing time is less than or equal to the first timing time, it is judged that for Treat that simulated target car load grade climbing performance meets requirement under the angle of gradient set, otherwise, when the second timing time is more than the first meter Time the time time, it is judged that for treat simulated target car load grade climbing performance set the angle of gradient under be unsatisfactory for requirement.

In the present embodiment, the dynamic analog engine test method of the present invention, further comprising the steps of:

Step 801, main control computer 1-1 sets constant speed fuel oil consumption measure speed and distance；

The target vehicle road resistance determined in step one is transferred to PLC module by step 802, main control computer 1-1 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog measurement of power according to target vehicle road resistance Dynamometer machine motor 3-9 in machine 3, makes dynamic analog dynamometer machine 3 be operated under road resistance simulation model；

Step 803, start electromotor 12 to be tested；

Step 804, main control computer 1-1 and PLC module 1-2 control gearshift and control servomotor 11-1 rotation, gearshift control Servomotor 11-1 rotational band processed is moved gear and is rotated wheel 11-2 rotation, and gearshift is rotated wheel 11-2 and treated by gear-shifting bracing wire 11-3 drive The gear level action of test engine 12, makes electromotor 12 to be tested be sequentially switched to the most high-grade by neutral gear, in shift process, Main control computer 1-1 and PLC module 1-2 control Clutch Control servomotor 10-1 and rotate, Clutch Control servomotor 10- 1 drives clutch to rotate wheel 10-2 rotates, and clutch rotates wheel 10-2 by first clutch bracing wire 10-3 action, the first clutch Device bracing wire 10-3 drives clutch operating connecting rod 10-4 action, and clutch operating connecting rod 10-4 is again by second clutch bracing wire 10-5 drives the clutch control arm action of electromotor 12 to be tested, it is achieved the throw-out-of clutch before gearshift controls and after gearshift Clutch combines and controls；

Step 805, main control computer 1-1 and PLC module 1-2 control Throttle Opening Control servomotor 9-1 and rotate, Throttle Opening Control Servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 and drives electromotor to be tested by acceleration cable 9-3 The air throttle motion of 12, makes the air throttle action of electromotor 12 to be tested, makes the air throttle of electromotor 12 to be tested reach step The target throttle opening value that speed is corresponding is measured in the constant speed fuel oil consumption set in 801；

During performing step 804～step 805, encoder 3-1 treats the rotating speed of test engine 12 and measures And by measurement to rotating speed be transferred to PLC module 1-2, PLC module 1-2 is transmitted further to main control computer 1-1, main control computer 1- 1 according to formulaIt is calculated the rotating speed n that rotating speed jth time sampling obtains_jCorresponding treats simulated target car load Speed v_j, and by each calculated speed compared with the constant speed fuel oil consumption measurement speed set in step 801, defeated Going out the control signal to Throttle Opening Control servomotor 9-1 rotating speed, Throttle Opening Control servomotor 9-1 drives throttle rotation wheel 9-2 to turn Dynamic, throttle rotates wheel 9-2 and drives the air throttle of electromotor 12 to be tested to move by acceleration cable 9-3, makes to treat that simulated target is whole The speed of car maintains the constant speed fuel oil consumption of setting and measures speed；

During step 806, fuel consumption meter 5 is treated the fuel consumption of simulated target car load and is measured, and will measure The fuel consumption treating simulated target car load obtained is transferred to main control computer 1-1；

Step 901, on main control computer 1-1 set treat simulated target car load condition model (include ECER40 operating mode, WMTC operating mode and User Defined operating mode)；

The target vehicle road resistance determined in step one is transferred to PLC module by step 902, main control computer 1-1 1-2, PLC module 1-2 is transmitted further to converter 1-3, converter 1-3 and drives dynamic analog measurement of power according to target vehicle road resistance Dynamometer machine motor 3-9 in machine 3, makes dynamic analog dynamometer machine 3 be operated under road resistance simulation model；

Step 903, start electromotor 12 to be tested；

Step 904, main control computer 1-1 are to throttle operation mechanism 9, clutch operating mechanism 10 and Gear shift operation mechanism 11 Being controlled, set in simulation steps 901 treats simulated target car load condition model；Main control computer 1-1 and PLC module 1-2 Control gearshift controls servomotor 11-1 and rotates, and control servomotor 11-1 rotational band of shifting gears is moved gear and rotated wheel 11-2 rotation, Gearshift rotates the gear level action that wheel 11-2 drives electromotor 12 to be tested by gear-shifting bracing wire 11-3, makes electromotor 12 to be tested Carry out gear shift operation；In shift process, main control computer 1-1 controls Clutch Control servomotor 10-1 with PLC module 1-2 Rotating, Clutch Control servomotor 10-1 drives clutch to rotate wheel 10-2 and rotates, and clutch rotates wheel 10-2 by first Clutch cable 10-3 action, first clutch bracing wire 10-3 drives clutch operating connecting rod 10-4 action, and clutch operating is even Bar 10-4 drives the clutch control arm action of electromotor 12 to be tested again by second clutch bracing wire 10-5, it is achieved before gearshift Throw-out-of clutch control with shift gears after clutch be combined control；Main control computer 1-1 controls throttle control with PLC module 1-2 Servomotor 9-1 processed rotates, and Throttle Opening Control servomotor 9-1 drives throttle to rotate wheel 9-2 and rotates, and throttle rotates wheel 9-2 to be passed through Acceleration cable 9-3 drives the air throttle motion of electromotor 12 to be tested, makes the air throttle action of electromotor 12 to be tested, makes to wait to try The air throttle issuing after examination and approval motivation 12 reaches the target joint that in step 901, on the performance curve of the condition model of setting, each point speed is corresponding Valve opening angle value；

During step 904, fuel consumption meter 5 is treated the fuel consumption of simulated target car load and is measured, and will measure The fuel consumption treating simulated target car load obtained is transferred to main control computer 1-1.

Embodiment 2

As shown in Fig. 6, Fig. 7 and Fig. 8, the present embodiment as different from Example 1: described inertial flywheel is flanged type inertia Flywheel 3-13, described flanged type inertial flywheel 3-13 include discoidal flanged type flywheel body 3-131 and are arranged on flanged type The center position of flywheel body 3-131 and for connecting the flanged type flywheel installing hole 3-132 of flywheel shaft 3-4, described flange The loss of weight technology groove 3-133 of annular it is provided with on the side, both sides of formula flywheel body 3-131.Remaining structure is all and embodiment 1 is identical.By arranging loss of weight technology groove 3-133, it is possible to realize the inertial flywheel of large radius with less material, and then can be real The simulation of the most relatively large inertia, has saved material and cost, and has expanded range of application.

The dynamic analog engine test method of the present embodiment is same as in Example 1.

The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every according to the present invention Any simple modification, change and the equivalent structure change that above example is made by technical spirit, all still falls within skill of the present invention In the protection domain of art scheme.

Claims

1. a dynamic analog engine test system, it is characterised in that: include dynamic analog dynamometer machine (3), sensing detection system System, control system (1) and be used for installing the engine pedestal (13) of electromotor to be tested (12), and be used for operating to be tested The throttle operation mechanism (9) of motivation (12), clutch operating mechanism (10) and Gear shift operation mechanism (11)；

Described dynamic analog dynamometer machine (3) includes base (3-7) and is fixedly connected on the first inertial flywheel on base (3-7) Bearings (3-2), the second inertial flywheel bearings (3-5), the first motor bearings support (3-8) and the second motor bearings props up Support (3-11), described first inertial flywheel bearings (3-2) and the second inertial flywheel bearings (3-5) are provided with flywheel Axle (3-4), is positioned between described first inertial flywheel bearings (3-2) and the second inertial flywheel bearings (3-5) The upper connection of section flywheel shaft (3-4) has inertial flywheel, and described first motor bearings supports (3-8) and the second motor bearings supports (3- 11) being provided with dynamometer machine motor (3-9) between, the two ends output shaft of described dynamometer machine motor (3-9) is separately mounted to the first electricity Machine bearing supports (3-8) and the second motor bearings supports on (3-11), and described dynamometer machine motor (3-9) is near described inertial flywheel The output shaft of side is connected with flywheel shaft (3-4) by flywheel shaft shaft coupling (3-6), and described dynamometer machine motor (3-9) is away from institute State and on the output shaft of inertial flywheel side, connect the dynamometer machine main shaft connection having the output shaft for connecting electromotor to be tested (12) Axial organ (3-12), the end of described flywheel shaft (3-4) connects the encoder for measuring the rotating speed of flywheel shaft (3-4) (3-1), the shell of described dynamometer machine motor (3-9) is provided with that the shell of one end and dynamometer machine motor (3-9) is fixing to be connected, separately One end is fixing with base (3-7) to be connected and for the force transducer (3-10) measuring the moment of torsion of dynamometer machine motor (3-9)；

Described throttle operation mechanism (9) includes that Throttle Opening Control servomotor (9-1), throttle rotate wheel (9-2) and acceleration cable (9- 3), the described wheel (9-2) that rotates is fixedly connected on the output shaft of Throttle Opening Control servomotor (9-1), described acceleration cable (9-3) Being wrapped in throttle to rotate on wheel (9-2), the air throttle of described electromotor to be tested (12) is connected with acceleration cable (9-3)；

Described clutch operating mechanism (10) include Clutch Control servomotor (10-1), clutch rotate wheel (10-2), the One clutch cable (10-3), clutch operating connecting rod (10-4) and second clutch bracing wire (10-5), described clutch rotates Wheel (10-2) is fixedly connected on the output shaft of Clutch Control servomotor (10-1), described first clutch bracing wire (10-3) One ends wound clutch rotate wheel (10-2) on, the other end of described first clutch bracing wire (10-3) and clutch operating Connecting rod (10-4) connects, and one end of described second clutch bracing wire (10-5) is connected with clutch operating connecting rod (10-4), described The clutch control arm of electromotor to be tested (12) is connected with the other end of second clutch bracing wire (10-5)；

Described Gear shift operation mechanism (11) includes that gearshift controls servomotor (11-1), gearshift rotates wheel (11-2) and gear-shifting bracing wire (11-3), described gearshift rotate wheel (11-2) be fixedly connected on gearshift control servomotor (11-1) output shaft on, described in change Gear bracing wire (11-3) is wrapped in gearshift and rotates on wheel (11-2), the gear level of described electromotor to be tested (12) and gear-shifting bracing wire (11-3) connect；

Described control system (1) include PLC module (1-2) that main control computer (1-1) connects with main control computer (1-1) and The converter (1-3) connected with PLC module (1-2), described encoder (3-1) and force transducer (3-10) all with PLC module (1- 2) input connects, and described Throttle Opening Control servomotor (9-1), Clutch Control servomotor (10-1) and gearshift control are watched Taking the motor (11-1) outfan all with PLC module (1-2) to be connected, described dynamometer machine motor (3-9) is with converter (1-3) even Connect；

Described sensing and detecting system includes carrying out, for the fuel consumption treating test engine (12), the fuel consumption meter that detects (5), described fuel consumption meter (5) is connected with the input of PLC module (1-2).

2. according to a kind of dynamic analog engine test system described in claim 1, it is characterised in that: described sensing detection system System also includes the gas leak meter (4) carrying out detecting for the crankcase gas leakage treating test engine (12), is used for treating Air/Fuel ratio analysis instrument (7) that air-fuel ratio during test engine (12) burning carries out detecting, it is used for treating test engine (12) Spark-plug gasket temperature carry out the first temperature sensor (6-1) detected, the machine oil temperature being used for treating test engine (12) The second temperature sensor (6-2) that degree carries out detecting, the intake air temperature being used for treating test engine (12) carry out detecting the Three-temperature sensor (6-3), it is used for treating the 4th temperature sensor (6-that the fuel oil temperature of test engine (12) carries out detecting 4), it is used for treating the first pressure transducer (8-1) that the admission pressure of test engine (12) carries out detecting, for to be tested Electromotor (12) pressure at expulsion carries out the second pressure transducer (8-2) detected, the fuel oil being used for treating test engine (12) Pressure carries out the 3rd pressure transducer (8-3) that detects and the pulse rotating speed that is used for treating test engine (12) carries out detecting Engine speed sensor (2), described gas leak meter (4) and Air/Fuel ratio analysis instrument (7) are all with main control computer (1-1) even Connecing, described first temperature sensor (6-1), the second temperature sensor (6-2), three-temperature sensor (6-3), the 4th temperature pass Sensor (6-4), the first pressure transducer (8-1), the second pressure transducer (8-2), the 3rd pressure transducer (8-3) and electromotor Speed probe (2) all inputs with PLC module (1-2) are connected.

3. according to a kind of dynamic analog engine test system described in claim 1, it is characterised in that: described inertial flywheel is Monoblock type inertial flywheel (3-3), described monoblock type inertial flywheel (3-3) include discoidal integral flywheel body (3-31) and It is arranged on the center position of integral flywheel body (3-31) and is used for connecting the integral flywheel installing hole of flywheel shaft (3-4) (3-32)。

4. according to a kind of dynamic analog engine test system described in claim 1, it is characterised in that: described inertial flywheel is Flanged type inertial flywheel (3-13), described flanged type inertial flywheel (3-13) includes discoidal flanged type flywheel body (3- 131) and be arranged on the center position of flanged type flywheel body (3-131) and be used for connecting the flanged type of flywheel shaft (3-4) and fly Wheel installing hole (3-132), the side, both sides of described flanged type flywheel body (3-131) is provided with the loss of weight technique of annular Groove (3-133).

5. according to a kind of dynamic analog engine test system described in claim 3 or 4, it is characterised in that: described dynamometer machine Motor (3-9) is frequency conversion timing AC motor.

6. according to a kind of dynamic analog engine test system described in claim 3 or 4, it is characterised in that: described encoder (3-1) it is optical-electricity encoder.

7. one kind utilizes dynamic analog engine test system as claimed in claim 1 to carry out dynamic analog engine test Method, it is characterised in that the method comprises the following steps:

Step one, determine and treat road resistance that the vehicle of simulated target car load is corresponding and be stored in main control computer (1-1)；

Step 2, electromotor to be tested (12) is fixed on engine pedestal (13), and defeated by electromotor to be tested (12) Shaft is connected with dynamometer machine main spindle coupling (3-12)；

Step 3, the air throttle of electromotor to be tested (12) is connected with the acceleration cable (9-3) in throttle operation mechanism (9), By the clutch control arm of electromotor to be tested (12) and the second clutch bracing wire (10-5) in clutch operating mechanism (10) Connect, and the gear level of electromotor to be tested (12) is connected with the gear-shifting bracing wire (11-3) in Gear shift operation mechanism (11)；

Step 401, main control computer (1-1) are by road roadlock corresponding for the vehicle treating simulated target car load determined in step one Power is transferred to PLC module (1-2), and PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives dynamic analog Dynamometer machine motor (3-9) in dynamometer machine (3), makes dynamic analog dynamometer machine (3) be operated under road resistance simulation model；

Step 402, start electromotor to be tested (12)；

Step 403, main control computer (1-1) and PLC module (1-2) control gearshift and control servomotor (11-1) rotation, gearshift Control servomotor (11-1) rotational band move gear rotate wheel (11-2) rotate, gearshift rotate wheel (11-2) pass through gear-shifting bracing wire (11-3) drive the gear level action of electromotor to be tested (12), make electromotor to be tested (12) be sequentially switched to by neutral gear the highest Shelves, in shift process, main control computer (1-1) and PLC module (1-2) control Clutch Control servomotor (10-1) and turn Dynamic, Clutch Control servomotor (10-1) drives clutch to rotate wheel (10-2) and rotates, and clutch rotates wheel (10-2) to be passed through First clutch bracing wire (10-3) action, first clutch bracing wire (10-3) drives clutch operating connecting rod (10-4) action, from Clutch operator link (10-4) drives the clutch control of electromotor to be tested (12) again by second clutch bracing wire (10-5) Arm action, it is achieved the clutch that the throw-out-of clutch before gearshift controls after gearshift is combined control；

Step 404, main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, throttle control Servomotor processed (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and treats The air throttle motion of test engine (12), makes the air throttle of electromotor to be tested (12) reach maximum position；

In step 405, electromotor to be tested (12) work process, encoder (3-1) is treated the rotating speed of test engine (12) and is entered Row measure and by measurement to rotating speed be transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), When main control computer (1-1) judges that its repeatedly rotating speed difference continuously received is not more than 20r/min～70r/min, it is determined that Treating that simulated target car load has reached stable the max speed for be modeled, now, main control computer (1-1) is according to formulaIt is calculated the max speed treating simulated target car load being modeled；Wherein, r is for treating simulated target The rolling radius of the driving wheel of car load andD_rimFor treating the wheel rim of simulated target car load Diameter, H_flat-ratioFor treating the aspect ratio of the tire of simulated target car load, W is the deflected width of tyre treating simulated target car load；i For treating the final drive ratio of simulated target car load；n_maxThe dynamometer machine motor (9) detected for now encoder (3-1) corresponds to Treat max. speed v of simulated target car load_maxMaximum (top) speed；

Step 501, measurement distance S accelerated in main control computer (1-1) upper setting starting_q；

The target vehicle road resistance determined in step one is transferred to PLC module (1-by step 502, main control computer (1-1) 2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives dynamic analog according to target vehicle road resistance Intend the dynamometer machine motor (3-9) in dynamometer machine (3), make dynamic analog dynamometer machine (3) be operated under road resistance simulation model；

Step 503, start electromotor to be tested (12)；

Step 504, main control computer (1-1) and PLC module (1-2) control gearshift and control servomotor (11-1) rotation, gearshift Control servomotor (11-1) rotational band move gear rotate wheel (11-2) rotate, gearshift rotate wheel (11-2) pass through gear-shifting bracing wire (11-3) drive the gear level action of electromotor to be tested (12), make electromotor to be tested (12) be sequentially switched to by neutral gear the highest Shelves, in shift process, main control computer (1-1) and PLC module (1-2) control Clutch Control servomotor (10-1) and turn Dynamic, Clutch Control servomotor (10-1) drives clutch to rotate wheel (10-2) and rotates, and clutch rotates wheel (10-2) to be passed through First clutch bracing wire (10-3) action, first clutch bracing wire (10-3) drives clutch operating connecting rod (10-4) action, from Clutch operator link (10-4) drives the clutch control of electromotor to be tested (12) again by second clutch bracing wire (10-5) Arm action, it is achieved the clutch that the throw-out-of clutch before gearshift controls after gearshift is combined control；

Step 505, main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, throttle control Servomotor processed (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and treats The air throttle motion of test engine (12), makes the air throttle of electromotor to be tested (12) reach maximum position；

During performing step 504～step 505, encoder (3-1) is treated the rotating speed of test engine (12) and is measured And by measurement to rotating speed be transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), master control meter Calculation machine (1-1) is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding treats simulated target Speed v of car load_j, when the speed until simulated target car load that sampling obtains is more than 0, start timing, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculated row Sail measurement distance S of the starting acceleration that distance reaches to set in step 501_qTime, stopping timing, the time now recorded is mould The pickup time intended；Wherein, t_jRotating speed n is obtained for main control computer (1-1) jth time sampling_jTime timing time；J takes Value is the natural number of 1～N, and N is sampling total degree and natural number that value is 1～200；

Step 601, set at main control computer (1-1) and surmount measurement distance S of acceleration_CWith the initial velocity v surmounting acceleration₀；

The target vehicle road resistance determined in step one is transferred to PLC module (1-by step 602, main control computer (1-1) 2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives dynamic analog according to target vehicle road resistance Intend the dynamometer machine motor (3-9) in dynamometer machine (3), make dynamic analog dynamometer machine (3) be operated under road resistance simulation model；

Step 603, start electromotor to be tested (12)；

Step 604, main control computer (1-1) and PLC module (1-2) control gearshift and control servomotor (11-1) rotation, gearshift Control servomotor (11-1) rotational band move gear rotate wheel (11-2) rotate, gearshift rotate wheel (11-2) pass through gear-shifting bracing wire (11-3) drive the gear level action of electromotor to be tested (12), make electromotor to be tested (12) be sequentially switched to by neutral gear the highest Shelves, in shift process, main control computer (1-1) and PLC module (1-2) control Clutch Control servomotor (10-1) and turn Dynamic, Clutch Control servomotor (10-1) drives clutch to rotate wheel (10-2) and rotates, and clutch rotates wheel (10-2) to be passed through First clutch bracing wire (10-3) action, first clutch bracing wire (10-3) drives clutch operating connecting rod (10-4) action, from Clutch operator link (10-4) drives the clutch control of electromotor to be tested (12) again by second clutch bracing wire (10-5) Arm action, it is achieved the clutch that the throw-out-of clutch before gearshift controls after gearshift is combined control；

Step 605, main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, throttle control Servomotor processed (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and treats The air throttle motion of test engine (12), makes the air throttle action of electromotor to be tested (12)；

During performing step 604～step 605, encoder (3-1) is treated the rotating speed of test engine (12) and is measured And by measurement to rotating speed be transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), master control meter Calculation machine (1-1) is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding treats simulated target Speed v of car load_j, and by each calculated speed and the initial velocity v surmounting acceleration of setting in step 601₀Compare Relatively, the output control signal to Throttle Opening Control servomotor (9-1) rotating speed, Throttle Opening Control servomotor (9-1) drives throttle to turn Driving wheel (9-2) rotates, and throttle rotates wheel (9-2) and drives the air throttle of electromotor to be tested (12) to transport by acceleration cable (9-3) Dynamic, make to treat that the speed of simulated target car load maintains the initial velocity v surmounting acceleration₀；

Step 606, main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, throttle control Servomotor processed (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and treats Test engine (12) air throttle motion, make electromotor to be tested (12) air throttle increase aperture, start timing, and according to FormulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when being calculated Operating range reach in step 601 set measurement distance S surmounting acceleration_CTime, stopping timing, the time now recorded is i.e. The acceleration time is surmounted for simulate；

Step 701, treat simulated target complete vehicle curb weight m, angle of gradient α, the initial speed of climbing in the upper setting of main control computer (1-1) Degree, the air throttle target opening value of electromotor to be tested (12), the first timing distance and the second timing distance；

After the target vehicle road resistance determined in step one is added mgsin α by step 702, main control computer (1-1), pass Being defeated by PLC module (1-2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) is according to target vehicle road Resistance drives the dynamometer machine motor (3-9) in dynamic analog dynamometer machine (3) plus the value after mgsin α, makes dynamic analog dynamometer machine (3) it is operated under climbing road resistance simulation model；

Step 703, start electromotor to be tested (12)；

Step 704, main control computer (1-1) and PLC module (1-2) control gearshift and control servomotor (11-1) rotation, gearshift Control servomotor (11-1) rotational band move gear rotate wheel (11-2) rotate, gearshift rotate wheel (11-2) pass through gear-shifting bracing wire (11-3) drive the gear level action of electromotor to be tested (12), make electromotor to be tested (12) be sequentially switched to one by neutral gear Shelves, in shift process, main control computer (1-1) and PLC module (1-2) control Clutch Control servomotor (10-1) and turn Dynamic, Clutch Control servomotor (10-1) drives clutch to rotate wheel (10-2) and rotates, and clutch rotates wheel (10-2) to be passed through First clutch bracing wire (10-3) action, first clutch bracing wire (10-3) drives clutch operating connecting rod (10-4) action, from Clutch operator link (10-4) drives the clutch control of electromotor to be tested (12) again by second clutch bracing wire (10-5) Arm action, it is achieved the clutch that the throw-out-of clutch before gearshift controls after gearshift is combined control；

Step 705, main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, throttle control Servomotor processed (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and treats The air throttle motion of test engine (12), makes the air throttle action of electromotor to be tested (12), makes electromotor to be tested (12) Air throttle reach in step 701 set air throttle target opening value；

During performing step 704～step 705, encoder (3-1) is treated the rotating speed of test engine (12) and is measured And by measurement to rotating speed be transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), master control meter Calculation machine (1-1) is according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding treats simulated target Speed v of car load_j, the speed treating simulated target car load obtained when sampling reaches the climbing initial velocity of setting in step 701 Time, start timing, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding row Sail distance S_j, when calculated operating range reaches the first timing distance set in step 701, stop timing, now The time of record is the first timing time；And the first stopping timing time being recorded as the second beginning timing initial time, and root According to formulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding operating range S_j, when calculating To operating range reach in step 701 set the second timing distance time, stop timing, the time now recorded is the second meter Time the time；Relatively the second timing time and the first timing time, when the second timing time is less than or equal to the first timing time, sentences Break as treating that simulated target car load grade climbing performance meets requirement under the angle of gradient set, otherwise, when the second timing time is more than the During one timing time, it is judged that for treating that simulated target car load grade climbing performance is unsatisfactory for requirement under the angle of gradient set.

The most in accordance with the method for claim 7, it is characterised in that the method is further comprising the steps of:

Step 801, set constant speed fuel oil consumption and measure speed and distance main control computer (1-1) is upper；

The target vehicle road resistance determined in step one is transferred to PLC module (1-by step 802, main control computer (1-1) 2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives dynamic analog according to target vehicle road resistance Intend the dynamometer machine motor (3-9) in dynamometer machine (3), make dynamic analog dynamometer machine (3) be operated under road resistance simulation model；

Step 803, start electromotor to be tested (12)；

Step 804, main control computer (1-1) and PLC module (1-2) control gearshift and control servomotor (11-1) rotation, gearshift Control servomotor (11-1) rotational band move gear rotate wheel (11-2) rotate, gearshift rotate wheel (11-2) pass through gear-shifting bracing wire (11-3) drive the gear level action of electromotor to be tested (12), make electromotor to be tested (12) be sequentially switched to by neutral gear the highest Shelves, in shift process, main control computer (1-1) and PLC module (1-2) control Clutch Control servomotor (10-1) and turn Dynamic, Clutch Control servomotor (10-1) drives clutch to rotate wheel (10-2) and rotates, and clutch rotates wheel (10-2) to be passed through First clutch bracing wire (10-3) action, first clutch bracing wire (10-3) drives clutch operating connecting rod (10-4) action, from Clutch operator link (10-4) drives the clutch control of electromotor to be tested (12) again by second clutch bracing wire (10-5) Arm action, it is achieved the clutch that the throw-out-of clutch before gearshift controls after gearshift is combined control；

Step 805, main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, throttle control Servomotor processed (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and treats The air throttle motion of test engine (12), makes the air throttle action of electromotor to be tested (12), makes electromotor to be tested (12) The air throttle constant speed fuel oil consumption that reaches to set in step 801 measure target throttle opening value corresponding to speed；

During performing step 804～step 805, encoder (3-1) is treated the rotating speed of test engine (12) and is measured And by measurement to rotating speed be transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), master control meter Calculation machine (1-1) is according to formulaIt is calculated the rotating speed n that rotating speed jth time sampling obtains_jCorresponding waiting is simulated Speed v of target car load_j, and each calculated speed is measured speed with the constant speed fuel oil consumption of setting in step 801 Comparing, the output control signal to Throttle Opening Control servomotor (9-1) rotating speed, Throttle Opening Control servomotor (9-1) drives oil Door rotates wheel (9-2) and rotates, and throttle is rotated wheel (9-2) and driven the solar term of electromotor to be tested (12) by acceleration cable (9-3) Door motion, makes to treat the constant speed fuel oil consumption measurement speed that the speed of simulated target car load maintains setting；

Step 806, beginning timing, and according to formulaIt is calculated the rotating speed n that jth time sampling obtains_j Corresponding operating range S_j, distance is measured in the constant speed fuel oil consumption reaching to set in step 801 when calculated operating range Time, stop timing；

During step 806, fuel consumption meter (5) is treated the fuel consumption of simulated target car load and is measured, and will measure To the fuel consumption treating simulated target car load be transferred to main control computer (1-1)；

Speed, repeated execution of steps 802～step 806 are measured in step 807, the constant speed fuel oil consumption changed in step 801, measure Obtain the constant speed fuel consumption treating simulated target car load that multiple speed is corresponding；

Step 901, treat simulated target car load condition model in the upper setting of main control computer (1-1)；

The target vehicle road resistance determined in step one is transferred to PLC module (1-by step 902, main control computer (1-1) 2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives dynamic analog according to target vehicle road resistance Intend the dynamometer machine motor (3-9) in dynamometer machine (3), make dynamic analog dynamometer machine (3) be operated under road resistance simulation model；

Step 903, start electromotor to be tested (12)；

Step 904, main control computer (1-1) are to throttle operation mechanism (9), clutch operating mechanism (10) and Gear shift operation mechanism (11) being controlled, set in simulation steps 901 treats simulated target car load condition model；Main control computer (1-1) and PLC mould Block (1-2) controls gearshift control servomotor (11-1) and rotates, and gearshift controls servomotor (11-1) rotational band and moves gear rotation Wheel (11-2) rotates, and gearshift rotates wheel (11-2) and drives the gear level of electromotor to be tested (12) to move by gear-shifting bracing wire (11-3) Make, make electromotor to be tested (12) carry out gear shift operation；In shift process, main control computer (1-1) and PLC module (1-2) Controlling Clutch Control servomotor (10-1) to rotate, Clutch Control servomotor (10-1) drives clutch to rotate wheel (10- 2) rotating, clutch is rotated wheel (10-2) and is carried by first clutch bracing wire (10-3) action, first clutch bracing wire (10-3) Dynamic clutch operating connecting rod (10-4) action, clutch operating connecting rod (10-4) is driven by second clutch bracing wire (10-5) again The clutch control arm action of electromotor to be tested (12), it is achieved the throw-out-of clutch control before gearshift and the clutch after gearshift In conjunction with controlling；Main control computer (1-1) and PLC module (1-2) control Throttle Opening Control servomotor (9-1) and rotate, Throttle Opening Control Servomotor (9-1) drives throttle to rotate wheel (9-2) and rotates, and throttle rotation wheel (9-2) is driven by acceleration cable (9-3) and waits to try Issue after examination and approval the air throttle motion of motivation (12), make the air throttle action of electromotor to be tested (12), make electromotor to be tested (12) Air throttle reaches the target throttle opening value that in step 901, on the performance curve of the condition model of setting, each point speed is corresponding；

During step 904, fuel consumption meter (5) is treated the fuel consumption of simulated target car load and is measured, and will measure To the fuel consumption treating simulated target car load be transferred to main control computer (1-1).

The most in accordance with the method for claim 7, it is characterised in that: step one is determined the target vehicle road resistance being modeled The detailed process of power is:

Step 101, treat the rim diameter D of simulated target car load upper setting of main control computer (1-1)_rim, treat simulated target car load The aspect ratio H of tire_flat-ratio, treat simulated target car load deflected width of tyre W and treat simulated target car load final stage pass Move and compare i；And front-wheel resistance to rolling a of simulated target car load is treated in the upper setting of main control computer (1-1)₀With coefficient of air resistance b；

Step 102, main control computer (1-1) machine are according to formulaIt is calculated dynamometer machine motor (9) corresponding In max. speed v treating simulated target car load_maxMaximum (top) speed n_max, wherein, r is the rolling of the driving wheel treating simulated target car load Dynamic radius and

Dynamometer machine motor (9) is corresponded to treat max. speed v of simulated target car load by step 103, main control computer (1-1)_max's Maximum (top) speed n_maxBeing transferred to PLC module (1-2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives Dynamometer machine motor (3-9) in dynamic analog dynamometer machine (3), runs to the maximum corresponding to treating simulated target car load max. speed After rotating speed, stop the rotating speed of dynamometer machine motor (3-9) is controlled, make dynamic analog dynamometer machine (3) simulation treat simulated target Car load slides into the taxiing procedures of resting state on road from max. speed；

Slide in simulation process, the rotating speed that the rotating speed of dynamometer machine motor (3-9) is measured and measurement arrived by encoder (3-1) Being transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), and main control computer (1-1) is according to public affairs FormulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, then According to formula F_E,j=a₀+b×v_j ²It is calculated speed v treating simulated target car load_jCorresponding road resistance F_E,j, further according to public affairs FormulaIt is calculated road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,j, then, main control computer (1- 1) by road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,jBeing transferred to PLC module (1-2), PLC module (1-2) is transmitted again To converter (1-3), converter (1-3) is according to road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,jChange its output The size of exciting current, drives the dynamometer machine motor (3-9) in dynamic analog dynamometer machine (3), makes the torsion of dynamometer machine motor (3-9) Square and road resistance F_E,jCorresponding engine output shaft moment of torsion M_E,jEqual；Meanwhile, force transducer (3-10) is to dynamometer machine motor (3-9) moment of torsion measures and measurement moment of torsion is transferred to PLC module (1-2), and PLC module (1-2) is transmitted further to master control meter Calculation machine (1-1), main control computer (1-1) records measuring moment of torsion and stores；

Speed v treating simulated target car load that step 104, main control computer (1-1) are received_jCorresponding measurement moment of torsion with According to formulaIt is calculated speed v treating simulated target car load_jCorresponding road resistance F_E,jCorresponding sends out Motivation output shaft torque M_E,jCompare, when the n times measurement torque that obtains of sampling and calculated engine output shaft moment of torsion When difference is not all in the range of the 2%～10% of calculated engine output shaft moment of torsion, repeated execution of steps 105, Until n times are sampled, the measurement torque and calculated engine output shaft torque difference obtained is all at calculated electromotor In the range of the 2%～10% of output shaft torque；

Dynamometer machine motor (9) is corresponded to treat max. speed v of simulated target car load by step 105, main control computer (1-1)_max's Maximum (top) speed n_maxBeing transferred to PLC module (1-2), PLC module (1-2) is transmitted further to converter (1-3), and converter (1-3) drives Dynamometer machine motor (3-9) in dynamic analog dynamometer machine (3), runs to dynamometer machine motor (9) corresponding to treating simulated target car load Max. speed v_maxMaximum (top) speed n_maxAfter, stop the rotating speed of dynamometer machine motor (3-9) is controlled, make dynamic analog survey Merit machine (3) simulation treats that simulated target car load slides into the taxiing procedures of resting state on road from max. speed；

Slide in simulation process, the rotating speed that the rotating speed of dynamometer machine motor (3-9) is measured and measurement arrived by encoder (3-1) Being transferred to PLC module (1-2), PLC module (1-2) is transmitted further to main control computer (1-1), and main control computer (1-1) is according to public affairs FormulaIt is calculated the rotating speed n that jth time sampling obtains_jCorresponding speed v treating simulated target car load_j, and Speed v treating simulated target car load that inquiry is stored therein_jThe corresponding last time slide in simulation process in measurement moment of torsion, Measurement moment of torsion in being slided in simulation process last time is transferred to PLC module (1-2), and PLC module (1-2) is transmitted further to frequency conversion Device (1-3), the moment of torsion of measuring during converter (1-3) slided in simulation process according to the last time changes its exciting current exported Size, drives the dynamometer machine motor (3-9) in dynamic analog dynamometer machine (3), makes the moment of torsion of dynamometer machine motor (3-9) with last Slide the measurement moment of torsion in simulation process equal；Meanwhile, the moment of torsion of dynamometer machine motor (3-9) is surveyed by force transducer (3-10) Measurement moment of torsion is also transferred to PLC module (1-2) by amount, and PLC module (1-2) is transmitted further to main control computer (1-1), and master control calculates Machine (1-1) records measuring moment of torsion and stores；

Step 106, main control computer (1-1) by perform for the last time the measurement moment of torsion that step 105 records and store be defined as by The target vehicle road resistance of simulation.