CN107402566A - A kind of electric automobile drive simulating test platform and system - Google Patents
A kind of electric automobile drive simulating test platform and system Download PDFInfo
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- CN107402566A CN107402566A CN201710729637.8A CN201710729637A CN107402566A CN 107402566 A CN107402566 A CN 107402566A CN 201710729637 A CN201710729637 A CN 201710729637A CN 107402566 A CN107402566 A CN 107402566A
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- electric automobile
- stand
- drive simulating
- automobile drive
- test
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- 238000012360 testing method Methods 0.000 title claims abstract description 104
- 238000004458 analytical method Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 5
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- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000012942 design verification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000033772 system development Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 description 1
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
Abstract
A kind of electric automobile drive simulating test platform and system, belong to automatically controlled technical field of measurement and test.Test platform of the present invention includes stand, the test device above the stand；The test device includes instrument panel syste, combination instrument, steering wheel, steering column, gearshift knob, accelerator pedal, brake pedal, pilot set；The instrument panel syste is located at the stand through instrument board fixed frame；The pilot set is located at the stand towards the instrument panel syste direction through seat fixing bracket；The steering wheel is connected on the instrument panel syste through the steering column and is located at the pilot set side；The gearshift knob is connected on the instrument panel syste；The accelerated pedal support of accelerator pedal is located at the stand；The brake pedal is located at the stand through brake-pedal support；The combination instrument is on the instrument panel syste.It is of the invention simple, can effective detection vehicle electric-control system performance.
Description
Technical field
The present invention relates to Automotive Steering Technology field, more particularly to a kind of commercial combination formula steering.
Background technology
At present, the analog platform designed by simulative automobile driving field is typically available to game user or driving school user,
Enable users to true driving experience sense.Such platform energy simulated automotive climb and fall, acceleration and deceleration, turning, slope traveling and
The state jolted.But existing drive simulating operating platform is bulky, complicated, it is inconvenient when connecting and installing, and
And many platforms are to set the free degree to move to improve simulated effect on the seat.As utility model patent CN205247671U is public
A kind of drive simulating emulation platform and patent of invention CN105427702A are opened and disclose a kind of series-parallel connection four-degree-of-freedom automobile and driven
Analog platform is sailed, is improved both for the problem of how improving driving experience.But for design verification and development process
Electric-control system performance and design aspect carry out correlation technique support it is few.Because existing analog platform is complicated and
It can only meet to be used for drive simulating operation and the experience of VR drive simulatings, cannot be used directly for electric-control system performance detection.
Growing with technical field of automation, HIL emulation testings have become automobile ECU (Electronic
Control Unit, electronic control unit) a very important ring in development process, HIL simulated test devices are to locate in real time
Reason device runs simulation model to simulate the running status of controll plant, is connected by I/O interfaces with measurand, to measurand
Carry out in all directions, the test of system, can effectively reduce the number of real steering vectors, and then shorten the development time.
At present, generally ECU-TEST (Electronic Control Unit-TEST, electronic control unit test) is passed through
Software carries out status monitoring, operational control to HIL equipment, hardware environment is set and data record, and it is that a kind of collection test is used
The automated test tool being integrated is write, performs, solves and filed to convention model.The testing procedure of ECU-TEST softwares is main
Including：Sequence is built, parameter configuration, signal configure, hardware environment is built and software environment is set.It is primarily based on computer language
Step descriptive language is changed into device action to form cycle tests with test case, it is tested to set after performing cycle tests
It is standby to carry out numeric feedback, by the numerical value of feedback compared with preset parameter value, so as to complete to test.
Therefore, it is badly in need of a kind of drive simulating survey that can be combined the test analysis equipment such as HIL and be used to detect electric-control system performance
Try platform and system.
The content of the invention
A kind of the problem of present invention exists for prior art, it is proposed that electric automobile drive simulating test simple in construction
Platform and system.
The technical scheme is that：
A kind of electric automobile drive simulating test platform, including stand, the test device above the stand；The test
Device includes instrument panel syste, combination instrument, steering wheel, steering column, gearshift knob, accelerator pedal, brake pedal, driver
Seat；The instrument panel syste is located at the stand through instrument board fixed frame；The pilot set is towards the instrument board
System orientation, the stand is located at through seat fixing bracket；The steering wheel is connected to the instrument board through the steering column
In system and it is located at the pilot set side；The gearshift knob is connected on the instrument panel syste；The acceleration is stepped on
The accelerated pedal support of plate is located at the stand；The brake pedal is located at the stand through brake-pedal support；The combination
Instrument is on the instrument panel syste.
Preferably, the electric automobile drive simulating test platform also includes in front of the instrument board fixed frame
Baffle plate.
Preferably, the electric automobile drive simulating test platform also includes the running fix below the stand
Mechanism.
Preferably, the mobile positioning mechanism includes two universal wheels located at both sides in front of the stand, located at platform
The directional wheel of frame rear both sides；The universal wheel is provided with the locking structure for being used for fixing universal wheel rotation.
Preferably, the locking structure is included with the vertically disposed gag lever post of rotary shaft of the universal wheel and for limiting
The fixed gag lever post stretches in the caging bolt of length in universal wheel.
Preferably, the stand includes the carriage of the base station for supporting the test device and the support base station
Frame.
Preferably, the stand also includes the appearance wire casing located at the base station bottom.
Preferably, the support frame is hollow out support frame, the support frame is provided with multiple coilings along its week side of boss
Post, the wrapping post are connected between the base station and the support frame.
A kind of electric automobile drive simulating test system, including above-mentioned electric automobile drive simulating test platform, Yi Jiyu
The test analysis equipment of the electric automobile drive simulating test platform connection.
Preferably, the test analysis equipment includes hardware-in―the-loop test equipment.
Preferably, electric automobile drive simulating test system also includes putting down located at electric automobile drive simulating test
Three tunnel switching circuits between platform and the test analysis equipment；It is all the way braking signal collection circuit, is all the way signal for faster
Acquisition Circuit, it is all the way gear shifting signal Acquisition Circuit.
Preferably, the connecting line convergence of the electric automobile drive simulating test platform is dashboard cable harness, the electricity
Connecting test analytical equipment terminal and the test analysis equipment of the electrical automobile drive simulating test platform by dashboard cable harness
Connection.
Preferably, electric automobile drive simulating test system also includes standby test power supply.
The invention has the advantages that：
A kind of electric automobile drive simulating test platform of the present invention and system, it is simple in construction, it can detect under various simulation operating modes
Automatically controlled signal simultaneously carries out automatically controlled performance detection, analysis.
Brief description of the drawings
Fig. 1 is a kind of structure chart of electric automobile drive simulating test platform of the present invention；
Fig. 2 is the schematic diagram of locking structure in a kind of electric automobile drive simulating test platform of the present invention；
Fig. 3 is a kind of theory diagram of electric automobile drive simulating test system of the present invention.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Prior art can only meet to be used for drive simulating operation and the experience of VR drive simulatings substantially, can not to design verification and
The electric-control system performance and design aspect of development process carry out providing corresponding technical support.If directly develop it is a set of with it is electronic
The same platform true to nature of car steering, then exploitation, testing cost are high；And due to there is many signals to join in electric automobile driving procedure
Number, such as air-conditioning, windscreen wiper signal, if be acquired to the simulated operation signal of the electric-control system in electric-control system development process
And checking, these superfluous signals there may be interference.Equally, the existing platform with driver seat dynamic function also can not be simple
Adapt to automobile electric control system exploitation demand.For this reason, it may be necessary to design letter that is a kind of easy and being used in electric-control system development process
Number collection and drive simulating checking platform and system.
Such as Fig. 1, a kind of electric automobile drive simulating test platform of the present invention includes stand, test device.The test dress
Install and be placed in above the stand.
The stand includes the support frame 1 of the base station 2 for supporting the test device and the support base station 2.It is described
Test device is arranged on the base station 2.Consider platform monitoring convenience, the base station of the stand is plate, and Fig. 1 is shown
It is square；The support frame 1 is hollow out support frame, light easy to remove.
The test device include instrument panel syste 10, combination instrument 12, steering wheel, steering column 11, gearshift knob 13,
Accelerator pedal 7, brake pedal 6, pilot set.Specifically, the instrument panel syste 10 is fixed on through instrument board fixed frame 5
On the stand, the instrument board fixed frame 5 is hollow out framework, and it has certain altitude so that in the instrument panel syste
Combination instrument 12 is installed, the parameter when combination instrument 12 shows drive simulating is to driver on 10.The operator's seat
Seat is to the direction of instrument panel syste 10, through seat fixing bracket 8 on the stand.The steering wheel is through the steering
Tubing string 11 is connected with the instrument panel syste 10, and is located at pilot set side according to driving habit.The gearshift knob 13
Also it is connected with the instrument panel syste 10, pilot set side can be located at by driving habit.The accelerator pedal 7 is accelerated to be stepped on
On the stand and below the instrument panel syste 10, the brake pedal 6 is located at board mount through brake-pedal support
On the stand and below the instrument panel syste 10.Wherein, the instrument panel syste 10 be for transmit braking, accelerate,
The instrument of gear shifting signal and carrying installation combination instrument and shift gears knob and other such as one-key starts switch associated appliance part
Plate system synthesis.
By the dimensional measurement to the panel assembly in instrument panel syste 10, the manufactured size of the stand is determined, its
Middle base station uses steel plate to support the test device of enough weight and driver.Afterwards by way of welding by base station 2 with
Support frame is welded.Afterwards, the instrument beam and dash size in instrument panel syste 10, instrument panel syste 10 is passed through
Instrument board fixed frame 5 is welded on stand.The steering column 11, combination instrument 12, gearshift knob 13 connect through rat tail
The instrument panel syste 10 is connect, at the same instrument wire harness correlation plug-in unit grafting is good.It will be made further according to the position of all parts
Dynamic pedal fixed support, accelerator pedal fixed support, pilot set fixed support 8 are fixed on base station 2 by welding manner
, reuse standard component and brake pedal 6 be fixed to brake pedal fixed support, accelerator pedal 7 is fixed to accelerator support,
Pilot set is fixed on seat fixing bracket 8.Instrument panel syste 10 and instrument wire harness, combination instrument assembly, console
By normal assembly method, the standard component as defined in carries out assembling fixation to the parts such as each electric component and gearshift knob（Standard
The associated specifications of part and the assembly method vehicle tested by determine）.
It is clean and tidy for ease of connecting up, electric signal is effectively gathered, is provided with the bottom of base station 2 of the stand and holds wire casing.By it is long,
Numerous and diverse wire harness is stored, is fixed on stand bottom, not only attractive in appearance, and in mobile test platform, it is not easy to damage wire harness.In order to
Improve cabling to rationalize, and avoid wire harness numerous and diverse and influence signal acquisition, the support frame is hollow out framework, the carriage
Frame is provided with multiple wrapping posts 15 along its week side of boss, and the wrapping post is connected between the base station 2 and the framework 1.The coiling
Post is insulation terminal, and larger space is left to provide winding space between adjacent wrapping post.
It is attractive in appearance for ease of the platform, dismountable baffle plate 9 is provided with front of the instrument board fixed frame, for blocking instrument
Dash board fixed frame 5 is exposed.
Have much in view of test equipment, and carry out different types of test, it is necessary to connect distinct device, then at described
Mobile positioning mechanism is set, in order to mobile electric simulative automobile driving test platform so that test is more flexible below frame.It is described
Mobile positioning mechanism includes two universal wheels 3 located at both sides in front of the stand, the directional wheel 4 located at stand rear both sides.
Although conveniently moving, electric automobile drive simulating test platform is scheduled on when somewhere is tested and finds universal wheel to mould
The stabilization and signal acquisition accuracy for intending driver behavior have certain interference, therefore, the universal wheel 3 is provided with universal for fixing
Take turns the locking structure rotated.Universal wheel generally comprises universal wheel firm banking 31, universal wheel body 32, and universal wheel body 32 passes through
Rotary shaft 33 is installed on universal wheel firm banking 31.Such as Fig. 2, an embodiment of locking structure is the locking structure bag
Gag lever post 34 and caging bolt 35 are included, sets up gag lever post 34 in the side perpendicular with the rotary shaft 33 of universal wheel, described ten thousand
Be provided with the hole of accommodating gag lever post to wheel body 32, the gag lever post 34 Telescopic movable in the hole, when gag lever post 34 to
The direction of rotary shaft 33 in universal wheel body 32 is stretched into, and when being butted on rotary shaft 33, the spacing spiral shell that will be sheathed on gag lever post 34
Bolt 35 is tightened, to ensure that gag lever post 34 offsets without turning to universal wheel with rotary shaft 33.Further, the gag lever post 34 limits
Position end is double fork structures, similar spanner, when offset rotary shaft 33 when, pitch structure using this pair to limit universal wheel deflection.Locking
Structure is not limited to above-mentioned embodiment, the structure that can also use other existing limitation universal wheels to rotate, such as brake member.
Fig. 3 shows a kind of test philosophy figure of electric automobile drive simulating test system.The system includes above-mentioned electronic vapour
Car drive simulating test platform and the test analysis equipment being connected with the electric automobile drive simulating test platform.At present,
Most during new energy development are HIL emulation testings, then the present invention is divided using hardware-in―the-loop test equipment as test
It is described exemplified by desorption device.
Electric automobile drive simulating test platform is moved to by hardware-in―the-loop test equipment, connected by dashboard cable harness
ADAS HIL terminals are attached with hardware-in―the-loop test equipment, are not supplied merely with hardware-in―the-loop test equipment to test platform
Electricity, and performance evaluation is carried out according to the signal of test platform.
There are all kinds of operation operating modes during actual driver behavior, driver carries out drive simulating according to all kinds of operating modes.Such as Fig. 3, drive
The person of sailing carries out Work condition analogue operation 101, the information such as speed in operating process on electric automobile drive simulating test platform 102
Driver is shown to by combination instrument 103.Electric automobile drive simulating test platform 102 is according to related operating mode（As it is anxious accelerate,
Anxious deceleration, normally travel etc.）Caused gear shifting signal 104, throttle signal 105, brake signal 106 are sent into hard through three branch roads
Part carries out data analysis management in ring test equipment, obtains the accurate data information of each operating mode.
In order to obtain accurate signal, switching circuit, specially brake signal are respectively set in above-mentioned three branch roads
Acquisition Circuit, signal for faster Acquisition Circuit, gear shifting signal Acquisition Circuit.The braking signal collection circuit, signal for faster collection
Circuit, gear shifting signal Acquisition Circuit are respectively located at signal amplifier, filter.The signal collected is carried out at filtering interference signals
Reason, and amplified signal, so that hardware-in―the-loop test equipment carries out valid data analysis, number is provided for the development process of test vehicle
According to supporting in order to timely rectifying and improving control.
Cause the factors such as detection terminal to avoid having a power failure suddenly, electric automobile drive simulating test system also includes standby survey
Try power supply, in power supply signal mutation without in the case of, start standby test power supply so that automotive development detection it is more complete, can
Lean on.
This real case simulation, which drives testing system platform, acceleration and demand speed to carry out the behaviour of drive simulating person according to demand
Make process, its control signal exported is accurate, reliable, more conforms to the operating process of true driver, can effectively improve and be adopted
The degree of accuracy of the data of collection.The structure design of the electric automobile drive simulating test platform and system entirety is easy, practical operation
The signal transmission efficiency that identical operating experience and all parts are driven with real vehicle can be reached, and be moved easily, connection is surveyed
It is simple to try equipment operation, the actual use in applicable a variety of places, the efficiency of raising work that can be larger.
It should be understood by those skilled in the art that the embodiments of the invention shown in foregoing description and accompanying drawing are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention completely effectively realizes.The function and structural principle of the present invention is in reality
Apply and show and illustrate in example, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (9)
1. a kind of electric automobile drive simulating test platform, including stand, the test device above the stand；Its feature
It is, the test device includes instrument panel syste, combination instrument, steering wheel, steering column, gearshift knob, accelerator pedal, system
Dynamic pedal, pilot set；The instrument panel syste is located at the stand through instrument board fixed frame；The operator's seat seat
To the instrument panel syste direction, the stand is located at through seat fixing bracket；The steering wheel connects through the steering column
In on the instrument panel syste and being located at the pilot set side；The gearshift knob is connected to the instrument panel syste
On；The accelerated pedal support of accelerator pedal is located at the stand；The brake pedal is through brake-pedal support located at described
Stand；The combination instrument is on the instrument panel syste.
2. a kind of electric automobile drive simulating test platform according to claim 1, it is characterised in that also include being located at institute
State the baffle plate in front of instrument board fixed frame.
3. a kind of electric automobile drive simulating test platform according to claim 1, it is characterised in that also include being located at institute
State the mobile positioning mechanism below stand.
A kind of 4. electric automobile drive simulating test platform according to claim 3, it is characterised in that the running fix
Mechanism includes two universal wheels located at both sides in front of the stand, the directional wheel located at stand rear both sides；The universal wheel
It is provided with the locking structure for being used for fixing universal wheel rotation.
A kind of 5. electric automobile drive simulating test system, it is characterised in that the electronic vapour including one of the claims 1-4
Car drive simulating test platform and the test analysis equipment being connected with the electric automobile drive simulating test platform.
A kind of 6. electric automobile drive simulating test system according to claim 5, it is characterised in that the test analysis
Equipment includes hardware-in―the-loop test equipment.
7. a kind of electric automobile drive simulating test system according to claim 5, it is characterised in that also include being located at institute
State three tunnel switching circuits between electric automobile drive simulating test platform and the test analysis equipment；It is brake signal all the way
Acquisition Circuit, it is all the way signal for faster Acquisition Circuit, is all the way gear shifting signal Acquisition Circuit.
A kind of 8. electric automobile drive simulating test system according to claim 5, it is characterised in that the electric automobile
The connecting line convergence of drive simulating test platform is dashboard cable harness, and the electric automobile drive simulating test platform passes through instrument
The connecting test analytical equipment terminal of printed line beam is connected with the test analysis equipment.
9. a kind of electric automobile drive simulating test system according to claim 5, it is characterised in that also including standby survey
Try power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710729637.8A CN107402566A (en) | 2017-08-23 | 2017-08-23 | A kind of electric automobile drive simulating test platform and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710729637.8A CN107402566A (en) | 2017-08-23 | 2017-08-23 | A kind of electric automobile drive simulating test platform and system |
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| Publication Number | Publication Date |
|---|---|
| CN107402566A true CN107402566A (en) | 2017-11-28 |
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| CN201710729637.8A Pending CN107402566A (en) | 2017-08-23 | 2017-08-23 | A kind of electric automobile drive simulating test platform and system |
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|---|---|---|---|---|
| JP2009069763A (en) * | 2007-09-18 | 2009-04-02 | Toyota Central R&D Labs Inc | Driving simulation test apparatus |
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| CN105182968A (en) * | 2015-09-24 | 2015-12-23 | 吉林大学 | Hardware-in-loop performance testing stand suitable for automobile C-EPS system |
| CN106092604A (en) * | 2016-06-25 | 2016-11-09 | 浙江合众新能源汽车有限公司 | A kind of new-energy automobile power assembly tests system |
| CN207133651U (en) * | 2017-08-23 | 2018-03-23 | 浙江合众新能源汽车有限公司 | A kind of electric automobile drive simulating test platform and system |
-
2017
- 2017-08-23 CN CN201710729637.8A patent/CN107402566A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009069763A (en) * | 2007-09-18 | 2009-04-02 | Toyota Central R&D Labs Inc | Driving simulation test apparatus |
| CN204576254U (en) * | 2015-04-14 | 2015-08-19 | 同济大学 | Driver's simulator stand that a kind of remote power controls |
| CN105182968A (en) * | 2015-09-24 | 2015-12-23 | 吉林大学 | Hardware-in-loop performance testing stand suitable for automobile C-EPS system |
| CN105136483A (en) * | 2015-10-13 | 2015-12-09 | 中国重汽集团济南动力有限公司 | Pure electric vehicle semi-physical simulation test bench and test method thereof |
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Address after: 314599 room 206, No. 999, Qingfeng South Road, Tongxiang Economic Development Zone, Jiaxing City, Zhejiang Province Applicant after: Hezhong New Energy Vehicle Co.,Ltd. Address before: 314599 room 206, No. 999, Qingfeng South Road, Tongxiang Economic Development Zone, Jiaxing City, Zhejiang Province Applicant before: HOZON NEW ENERGY AUTOMOBILE Co.,Ltd. Address after: 314599 room 206, No. 999, Qingfeng South Road, Tongxiang Economic Development Zone, Jiaxing City, Zhejiang Province Applicant after: United New Energy Automobile Co.,Ltd. Address before: 314599 room 206, No. 999, Qingfeng South Road, Tongxiang Economic Development Zone, Jiaxing City, Zhejiang Province Applicant before: Hezhong New Energy Vehicle Co.,Ltd. |
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Application publication date: 20171128 |
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