CN206470066U - A kind of power assembly of electric automobile testboard bay - Google Patents

A kind of power assembly of electric automobile testboard bay Download PDF

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Publication number
CN206470066U
CN206470066U CN201720190172.9U CN201720190172U CN206470066U CN 206470066 U CN206470066 U CN 206470066U CN 201720190172 U CN201720190172 U CN 201720190172U CN 206470066 U CN206470066 U CN 206470066U
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Prior art keywords
power assembly
electric
testboard bay
measured
dynamometer
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CN201720190172.9U
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Inventor
李迎宏
李中兴
赵春艳
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Beijing Electric Vehicle Co Ltd
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Beijing Electric Vehicle Co Ltd
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Abstract

The utility model provides a kind of power assembly of electric automobile testboard bay, including:The suspension mounting bracket of fixed power assembly to be measured;The electric dynamometer being connected with power assembly to be measured;The electric machine controller being connected with the motor of power assembly to be measured;And the monitoring system being connected with electric dynamometer and electric machine controller.Inputted by motor operating parameter when occurring abnormal sound during vehicle is travelled to monitoring system;By monitoring system control testboard bay reduction vehicle transport condition, and the abnormal sound position of power assembly is positioned and fault identification during being travelled to vehicle, it can exclude and be disturbed beyond power assembly, with higher resolution ratio and inspection efficiency, while helping to analyze the system problem of power assembly.

Description

A kind of power assembly of electric automobile testboard bay
Technical field
The utility model is related to power assembly technical field of measurement and test, more particularly to a kind of power assembly of electric automobile testboard Frame.
Background technology
The power assembly of pure electric automobile includes motor, decelerator, suspension and power transmission shaft.Vehicle after assembly, When there is power assembly traveling abnormal sound problem in Some vehicles, it tends to be difficult to abnormal sound position is positioned on road, experience can only be passed through Judged.After vehicle is risen with lifting machine check abnormal sound position when, again can not simulated roadway transport condition, in particular for The anxious accelerating mode of heavy load.When checking abnormal sound position using vehicle revolving drum test table, the noise of generation should not isolate, work Personnel also should not carry out abnormal sound identification close to power assembly.
Utility model content
The utility model embodiment provides a kind of power assembly of electric automobile testboard bay, to solve sentencing in the prior art During abnormal sound problem during disconnected power assembly traveling, it is difficult to position abnormal sound position or can not simulated roadway transport condition ask Topic.
The utility model embodiment provides a kind of power assembly of electric automobile testboard bay, including:
The suspension mounting bracket of fixed power assembly to be measured;
The electric dynamometer being connected with power assembly to be measured;
The electric machine controller being connected with the motor of power assembly to be measured;And
The monitoring system being connected with the electric dynamometer and the electric machine controller.
After power assembly to be measured is fixed using suspension mounting bracket, when occurring abnormal sound during vehicle is travelled Motor operational factor is inputted to monitoring system;Each device is controlled to reduce vehicle transport condition by monitoring system;And utilize The abnormal sound position of power assembly is positioned and fault identification during acoustic equipment is travelled to vehicle, can exclude power assembly Disturb in addition, with higher resolution ratio and inspection efficiency, while helping to analyze the system problem of power assembly.
Wherein, the electric dynamometer is connected by the first power transmission shaft with the second driving shaft of power assembly to be measured, described The junction of first power transmission shaft and the second driving shaft is provided with power transmission shaft adapter flange, first power transmission shaft and the electricity Power dynamometer machine integrally connected.
Wherein, the testboard bay also includes:
It is arranged at the torque sensor between the electric dynamometer and power assembly to be measured;And
Bearing spider contacted with the torque sensor, the support torque sensor, the bearing spider passes through Pressing plate is arranged on test platform, and the torque sensor is arranged on first power transmission shaft, and the torque sensor with The monitoring system connection.
Wherein, the testboard bay also includes:
The cooling recirculation system being connected respectively with the motor, the electric machine controller and the electric dynamometer, The cooling recirculation system is connected with the monitoring system.
Wherein, the testboard bay also includes:
The sound deadening space formed using acoustic material, the electric dynamometer and the cooling recirculation system may be contained within institute State the outside of sound deadening space.
Wherein, the suspension mounting bracket is matched with the suspension on power assembly to be measured.
Wherein, the testboard bay also includes:
Battery simulator being connected with the electric machine controller, being powered for the electric machine controller.
Wherein, the quantity of the electric dynamometer is two, respectively positioned at the two ends of power assembly to be measured, and is passed through respectively The mating connection of first power transmission shaft and the second driving shaft.
Wherein, the quantity of the bearing spider, the torque sensor and the power transmission shaft adapter flange is two.
The beneficial effect of technical solutions of the utility model at least includes:
Technical solutions of the utility model, after power assembly to be measured is fixed using suspension mounting bracket, by vehicle row Motor operational factor when occurring abnormal sound during sailing is inputted to monitoring system;Each device is controlled to reduce by monitoring system Vehicle transport condition;And the abnormal sound position of power assembly is positioned during being travelled using acoustic equipment to vehicle and failure is distinguished Know, can exclude and be disturbed beyond power assembly, with higher resolution ratio and inspection efficiency, while helping to analyze power assembly System problem, solve the problems, such as in the prior art judge power assembly traveling during abnormal sound when, it is difficult to position abnormal sound Position or can not simulated roadway transport condition the problem of.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, the utility model embodiment will be retouched below The accompanying drawing used required in stating is briefly described, it should be apparent that, drawings in the following description are only the utility model Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with root Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 represents that the power assembly of electric automobile testboard bay that the utility model is provided coordinates with power assembly to be measured and illustrated Figure one;
Fig. 2 represents that the power assembly of electric automobile testboard bay that the utility model is provided coordinates with power assembly to be measured and illustrated Figure two.
Wherein in figure:1st, power assembly to be measured;11st, motor;12nd, decelerator;13rd, suspend;14th, second driving shaft; 2nd, suspension mounting bracket;3rd, electric dynamometer;31st, the first power transmission shaft;4th, electric machine controller;41st, battery simulator;5th, monitoring system System;6th, power transmission shaft adapter flange;7th, torque sensor;8th, bearing spider;9th, cooling recirculation system;10th, sound deadening space.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is a part of embodiment of the utility model, rather than whole implementation Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made The every other embodiment obtained, belongs to the scope of the utility model protection.
The utility model embodiment provides a kind of power assembly of electric automobile testboard bay, as depicted in figs. 1 and 2, including:
The suspension mounting bracket 2 of fixed power assembly 1 to be measured;The electric dynamometer 3 being connected with power assembly 1 to be measured;With The electric machine controller 4 that the motor 11 of power assembly 1 to be measured is connected;And be connected with electric dynamometer 3 and electric machine controller 4 Monitoring system 5.
Specifically, suspension mounting bracket 2 is connected with power assembly 1 to be measured, for fixing power assembly 1 to be measured.It is to be measured Power assembly 1 include:Motor 11, decelerator 12, suspension 13 and second driving shaft 14, wherein suspension mounting bracket 2 with Suspension 13 on power assembly 1 to be measured matches, and is matched by suspension mounting bracket 2 with suspension 13, realizes total to power to be measured Into 1 fixation.Wherein suspension mounting bracket 2 is used to simulate vehicle body installation site, the fixed position of suspension mounting bracket 2, can be with Realize the simulation to power assembly 1 to be measured and vehicle body matching status.The quantity of suspension mounting bracket 2 can be 3, pass through pressing plate It is fixed on test platform.
Electric dynamometer 3 is connected with power assembly 1 to be measured, and by electric dynamometer 3, come simulating wheel, there is provided load.Tool Body is that electric dynamometer 3 receives the operational factor that monitoring system 5 is sent, according to operational factor offered load.Electric machine controller 4 with The motor 11 of power assembly 1 to be measured is connected, and can control the work of motor 11.Specially electric machine controller 4 is received The operational factor of monitoring system 5, control motor 11 starts.
Wherein, electric dynamometer 3 is connected with the torque output of power assembly 1 to be measured, the mistake operated in motor 11 Cheng Zhong, the rotating speed and moment of torsion of motor 11 are continually changing, and the load that electric dynamometer 3 is provided increases for motor 11 to be turned round Square, motor 11 utilizes the real-time output speed of internal sensor device and moment of torsion, and is transmitted by electric machine controller 4 to monitoring system System 5, monitoring system 5 is when it is determined that the rotating speed of motor 11 reaches vehicle running status and stabilization with moment of torsion, and control electric power is surveyed Work(machine 3 keeps moment of torsion steady operation.
When carrying out test job using power assembly of electric automobile testboard bay, it is necessary first to obtain vehicle traveling process The operational factor of middle motor 11 when there is abnormal sound, and according to the operational factor of motor 11 determine torque-rotation speed- The corresponding relation of time, by the corresponding relation input monitoring system 5 of torque-rotation speed-time of determination;Monitoring system 5 is being obtained After the corresponding relation of torque-rotation speed-time, corresponding operating is sent respectively to electric dynamometer 3 and electric machine controller 4 and is joined Number so that electric machine controller 4 controls the motor 11 of power assembly 1 to be measured to operate after corresponding operating parameters are obtained, Electric dynamometer 3 is after corresponding operating parameters are obtained simultaneously, and electric dynamometer 3 is provided to load to increase for motor 11 and turned round Square, motor 11 utilizes the real-time output speed of internal sensor device and moment of torsion, and is transmitted by electric machine controller 4 to monitoring system System 5, monitoring system 5 is when it is determined that the rotating speed of motor 11 reaches vehicle running status and stabilization with moment of torsion, and control electric power is surveyed Work(machine 3 keeps moment of torsion steady operation.
Shape when power assembly of electric automobile testboard bay and the reduction vehicle traveling of power assembly to be measured 1 can now be utilized State, then utilizes acoustic equipment or artificial to power assembly 1 to be measured progress abnormal sound position positioning and fault identification.
In the utility model embodiment, vehicle transport condition is reduced by using power assembly of electric automobile testboard bay, And using acoustic equipment or it is artificial vehicle is travelled during the abnormal sound position of power assembly positioned and fault identification, can be with Exclude and disturbed beyond power assembly, with higher resolution ratio and inspection efficiency, while contributing to the system for analyzing power assembly Problem, solve the problems, such as in the prior art judge power assembly traveling during abnormal sound when, it is difficult to position abnormal sound position or Person can not simulated roadway transport condition the problem of.
In the utility model embodiment, as shown in Fig. 2 electric dynamometer 3 passes through the first power transmission shaft 31 and power to be measured The second driving shaft 14 of assembly 1 is connected, and the junction of the first power transmission shaft 31 and second driving shaft 14 is provided with power transmission shaft switching method Orchid 6, the first power transmission shaft 31 and the integrally connected of electric dynamometer 3.
Specifically, second driving shaft 14 is arranged at the torque output of power assembly 1 to be measured, by the first power transmission shaft 31 with The cooperation of second driving shaft 14, realizes the connection of electric dynamometer 3 and power assembly 1 to be measured.And first power transmission shaft 31 and electric power The integrally connected of dynamometer machine 3, during the offered load of electric dynamometer 3 is operated, passes through the first power transmission shaft 31 and the second transmission The cooperation of axle 14, the cooperation that second driving shaft 14 passes through decelerator 12 and motor 11 so that electric dynamometer 3 provides load Increase moment of torsion for motor 11.
The junction of first power transmission shaft 31 and second driving shaft 14 is provided with power transmission shaft adapter flange 6, passes through power transmission shaft Adapter flange 6 is matched with the first power transmission shaft 31, second driving shaft 14 respectively, realizes the first power transmission shaft 31 and second driving shaft 14 Connection.
In the utility model embodiment, as shown in Fig. 2 power assembly of electric automobile testboard bay also includes:
It is arranged at the torque sensor 7 between electric dynamometer 3 and power assembly to be measured 1;And connect with torque sensor 7 The bearing spider 8 of tactile, support torque sensor 7, bearing spider 8 is arranged on test platform by pressing plate, torque sensor 7 It is arranged on the first power transmission shaft 31, and torque sensor 7 is connected with monitoring system 5.
Specifically, being provided with torque sensor 7, torque sensor 7 between electric dynamometer 3 and power assembly to be measured 1 Moment of torsion for monitoring the output end of power assembly 1 to be measured, electric dynamometer 3 is connected with monitoring system 5, the reality in its operation process Border torque value can be transmitted to monitoring system 5, recorded by monitoring system 5.The actual torque value of electric dynamometer 3 is moved with to be measured The torque value of the output end of power assembly 1 has deviation.Wherein electric dynamometer 3 adds in offered load according to target torque value Load with, but the torque value and target torque value during real-world operation can also have deviation.
When electric dynamometer 3 provides load and increases moment of torsion for motor 11, motor 11 is filled using internal sensor Real-time output speed and moment of torsion are put, and is transmitted by electric machine controller 4 to monitoring system 5, monitoring system 5 is it is determined that motor When 11 rotating speed reaches vehicle running status and stabilization with moment of torsion, control electric dynamometer 3 keeps moment of torsion steady operation.In driving The rotating speed of motor 11 reach vehicle running status with moment of torsion and it is stable when, torque sensor 7 needs to obtain power assembly 1 to be measured defeated Go out the torque value at end, and by the connection between monitoring system 5, send to monitoring system 5, recorded by monitoring system 5. Electric dynamometer 3 feeds back current actual torque to monitoring system 5 simultaneously.
Wherein torque sensor 7 is fixed on the first power transmission shaft 31, and the lower section of torque sensor 7 is provided with support moment of torsion The bearing spider 8 of sensor 7.Bearing spider 8 is used as Auxiliary support, the rotary shaft of support torque sensor 7 both sides.Its middle (center) bearing Bearing 8 is fixed on test platform by pressing plate, and electric dynamometer 3 is fixed on test platform also by pressing plate.Bearing spider 8 It can be fixed on electric dynamometer 3 by same pressing plate on test platform.
In the utility model embodiment, as shown in Fig. 2 power assembly of electric automobile testboard bay also includes:With driving The cooling recirculation system 9 that motor 11, electric machine controller 4 and electric dynamometer 3 are connected respectively, cooling recirculation system 9 and monitoring system System 5 is connected.
Specifically, cooling recirculation system 9 is used for the cooling for being tested motor 11 and testboard bay.Motor 11, electricity Machine controller 4 and electric dynamometer 3 are water cooling plant, pass through cooling recirculation system 9 and motor 11 and motor control Device 4 and the connection with electric dynamometer 3, can drop to motor 11, electric machine controller 4 and electric dynamometer 3 Temperature, it is ensured that its normal operation.And cooling recirculation system 9 is connected with monitoring system 5, cooling situation can be reported into monitoring system in real time System 5.
In the utility model embodiment, as shown in Fig. 2 power assembly of electric automobile testboard bay also includes:
It is empty that the sound deadening space 10 formed using acoustic material, electric dynamometer 3 and cooling recirculation system 9 may be contained within sound insulation Between 10 outside.Power assembly 1 to be measured, suspension mounting bracket 2, electric machine controller 4, power transmission shaft adapter flange 6, torque sensor 7th, bearing spider 8 is respectively positioned on the inside of sound deadening space 10, and sound deadening space 10 is the space that a four sides, top and bottom are closed, Can form perforate on the sound-proof wall of sound deadening space 10, the first power transmission shaft 31 wear after perforate with the electric power outside sound deadening space 10 The integrally connected of dynamometer machine 3.Cooling recirculation system 9 also is located at outside sound deadening space 10 simultaneously, by perforate and sound deadening space 10 The motor 11 and electric machine controller 4 in portion are connected, for cooling to motor 11 and electric machine controller 4, it is ensured that driven The radiating effect of dynamic motor 11 and electric machine controller 4.
Cooling recirculation system 9 outside sound deadening space 10 connects with the electric dynamometer 3 outside sound deadening space 10 Connect, for cooling to electric dynamometer 3, it is ensured that the normal work of electric dynamometer 3.By electric dynamometer 3, cooling circulation System 9 is arranged at outside sound deadening space 10, and the equipment interference abnormal sound that the noises such as electric dynamometer 3, water pump can be prevented larger is surveyed Examination.
In the utility model embodiment, as shown in Fig. 2 power assembly of electric automobile testboard bay also includes:With motor Battery simulator 41 that controller 4 is connected, being powered for electric machine controller 4.By setting battery simulator 41 to be motor control Device 4 is powered, it is ensured that the normal work of electric machine controller 4.
In the utility model embodiment, as depicted in figs. 1 and 2, the quantity of electric dynamometer 3 is two, is located at respectively The two ends of power assembly 1 to be measured, and pass through the mating connection of the first power transmission shaft 31 and second driving shaft 14 respectively;Bearing spider 8, The quantity of torque sensor 7 and power transmission shaft adapter flange 6 is two.
Specifically, by setting two electric dynamometers 3, it is possible to achieve simulation of the electric dynamometer 3 to wheel, and two The load that electric dynamometer 3 is provided is identical.Two electric dynamometers 3 respectively be located at second driving shaft 14 both sides, by with The cooperation of the first power transmission shaft 31 and second driving shaft 14 of the integrally connected of electric dynamometer 3, realizes two electric dynamometers 3 and the The connection of two power transmission shafts 14.
Torque sensor 7 is provided with corresponding first power transmission shaft 31 of each electric dynamometer 3, in torque sensor 7 lower section is provided with bearing spider 8, for torque sensor 7 to be fixed.Wherein bearing spider 8 as Auxiliary support, Support the rotary shaft of the both sides of torque sensor 7.
When the first power transmission shaft 31 of electric dynamometer 3 coordinates with second driving shaft 14, by 6 points of power transmission shaft adapter flange Not with the cooperation of the first power transmission shaft 31, second driving shaft 14, the connection of the first power transmission shaft 31 and second driving shaft 14 is realized.
Above-described is preferred embodiment of the present utility model, it should be pointed out that for the ordinary person of the art For, some improvements and modifications can also be made under the premise of principle described in the utility model is not departed from, these improve and moistened Decorations are also in protection domain of the present utility model.

Claims (9)

1. a kind of power assembly of electric automobile testboard bay, it is characterised in that including:
The suspension mounting bracket of fixed power assembly to be measured;
The electric dynamometer being connected with power assembly to be measured;
The electric machine controller being connected with the motor of power assembly to be measured;And
The monitoring system being connected with the electric dynamometer and the electric machine controller.
2. power assembly of electric automobile testboard bay according to claim 1, it is characterised in that the electric dynamometer leads to The second driving shaft that the first power transmission shaft is crossed with power assembly to be measured is connected, the company of first power transmission shaft and the second driving shaft The place of connecing is provided with power transmission shaft adapter flange, first power transmission shaft and the electric dynamometer integrally connected.
3. power assembly of electric automobile testboard bay according to claim 2, it is characterised in that the testboard bay is also wrapped Include:
It is arranged at the torque sensor between the electric dynamometer and power assembly to be measured;And
Bearing spider contacted with the torque sensor, the support torque sensor, the bearing spider passes through pressing plate Be arranged on test platform, the torque sensor is arranged on first power transmission shaft, and the torque sensor with it is described Monitoring system is connected.
4. power assembly of electric automobile testboard bay according to claim 1, it is characterised in that the testboard bay is also wrapped Include:
The cooling recirculation system being connected respectively with the motor, the electric machine controller and the electric dynamometer, it is described Cooling recirculation system is connected with the monitoring system.
5. power assembly of electric automobile testboard bay according to claim 4, it is characterised in that the testboard bay is also wrapped Include:
The sound deadening space formed using acoustic material, the electric dynamometer and the cooling recirculation system may be contained within it is described every The outside in sound space.
6. power assembly of electric automobile testboard bay according to claim 1, it is characterised in that the suspension mounting bracket Matched with the suspension on power assembly to be measured.
7. power assembly of electric automobile testboard bay according to claim 1, it is characterised in that the testboard bay is also wrapped Include:
Battery simulator being connected with the electric machine controller, being powered for the electric machine controller.
8. power assembly of electric automobile testboard bay according to claim 3, it is characterised in that the electric dynamometer Quantity is two, respectively positioned at the two ends of power assembly to be measured, and passes through first power transmission shaft and the described second transmission respectively The mating connection of axle.
9. power assembly of electric automobile testboard bay according to claim 3, it is characterised in that the bearing spider, institute The quantity for stating torque sensor and the power transmission shaft adapter flange is two.
CN201720190172.9U 2017-03-01 2017-03-01 A kind of power assembly of electric automobile testboard bay Active CN206470066U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108414244A (en) * 2018-05-04 2018-08-17 重庆凯瑞汽车试验设备开发有限公司 A kind of power assembly of electric automobile real vehicle simulation test bench and its test method
CN111380698A (en) * 2020-03-06 2020-07-07 浙江零跑科技有限公司 Be used for new energy automobile to drive power assembly to dragging test bench structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108414244A (en) * 2018-05-04 2018-08-17 重庆凯瑞汽车试验设备开发有限公司 A kind of power assembly of electric automobile real vehicle simulation test bench and its test method
CN108414244B (en) * 2018-05-04 2020-11-10 重庆凯瑞汽车试验设备开发有限公司 Electric automobile power assembly real vehicle simulation test bed and test method thereof
CN111380698A (en) * 2020-03-06 2020-07-07 浙江零跑科技有限公司 Be used for new energy automobile to drive power assembly to dragging test bench structure

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