CN209600400U - A kind of NVH test vehicle condition information display device - Google Patents
A kind of NVH test vehicle condition information display device Download PDFInfo
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- CN209600400U CN209600400U CN201822216248.8U CN201822216248U CN209600400U CN 209600400 U CN209600400 U CN 209600400U CN 201822216248 U CN201822216248 U CN 201822216248U CN 209600400 U CN209600400 U CN 209600400U
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Abstract
The utility model discloses a kind of NVH to test vehicle condition information display device, including display screen, gooseneck and sucker, the side of the display screen is equipped with OBD II interface, the opposite other side is equipped with bnc interface, the both ends of the gooseneck are connect with display screen and sucker respectively, and the display area of the display screen half is for showing two information of engine speed and speed per hour.Advantage: the present apparatus fixed position when installing on the vehicle that different NVH is tested is simple and fast, convenient disassembly, and screen is big, key message display area is big, simple, intuitive shows the transient fluctuation of situation of remote at sensitive, efficient the problem of helping engineers positioning vehicle place.
Description
Technical field
The utility model belongs to vehicle condition information acquisition technical field, and in particular to a kind of NVH test situation of remote display dress
It sets.
Background technique
Currently, automobile is there are about 1/3 failure problems are related with NVH, and each major company has nearly 20% R & D Cost consumption to exist
It solves the problems, such as on the NVH of vehicle, medium-to-high grade car experimental amount related with NVH during research and development is maximum, therefore auto NVH is tested
There is very important status during vehicle research and development.Auto NVH test obtains vehicle condition letter by a series of test methods
Breath, have: revolving speed, speed, tread depths, throttle opening, output torque, intake manifold pressure, automatic transmission actual-gear,
Automatic transmission clutch state, compressor state, catalyst converter heated condition etc..It is obtained tentatively according to analysis vehicle condition information
Diagnostic result, such as:
(1) gas pedal depth information, when accelerator pedal position reaches 80%, problem just will appear；
(2) gear information, for manual-gear vehicle, we readily appreciate which gear current automobile is in, but right
How for the vehicle of automatic gear, gear information is obtained in real time, had difficulties.
In auto NVH test, the traditional acquisition modes for testing rotary speed information are divided into outside vehicle obtaining to be obtained with interior.
1, the outer acquisition modes of vehicle: photoelectric sensor test mode and folder cylinder line test mode.
(1) photoelectric sensor can test rotary speed information, but which has the following problems:
1) difficult to install, fixed locational space is small, is not fixed easily；
2) unstable, because it is dynamic not stop when engine operation.
(2) cylinder line test mode is pressed from both sides
Folder cylinder line test mode is to test the another way of revolving speed letter, but which is also problematic:
1) unstability, electromagnetic pulse are unstable；
2) limitation, diesel engine can not press from both sides cylinder line.
Both modes are due to being to obtain rotary speed information outside vehicle, it is therefore desirable to draw a p-wire to be introduced into vehicle outside vehicle
It is interior, car is introduced by vehicle window, necessarily leads to sealing problem.If sealing is not exclusively, additional wind can be brought in NVH test
Noise.
2, interior acquisition modes: cigar lighter socket test mode and CAN bus test mode
(1) cigar lighter socket test mode
Although car obtains the sealing problem solved when obtaining outside vehicle, problem is still had:
1) each driving engine than inconsistent, survey again after being demarcated by situation different for ripple frequency
Examination；
2) generator does not generate electricity in some cases, and also or ripple signal is too weak, leads to jitter, can not prepare to obtain
Take rotary speed information.
(2) CAN bus test mode
Traditional CAN bus test mode is realized using based on the mode of real time inquiring, is had the disadvantage that
1) it is based on standard agreement, there are problems that temporal resolution difference, there is certain limitation；
2) real time inquiring CAN bus interferes engine operation.
It is the mode and the problem that tradition obtains rotary speed information above.
It can be seen that the link is worth paying much attention in auto NVH test process, it can be raising working efficiency and work
Make quality and guiding opinion is provided.
Utility model content
A kind of NVH of the utility model tests vehicle condition information display device, and the present apparatus is on the vehicle that different NVH is tested
Fixed position is simple and fast when installation, and convenient disassembly, screen is big, and key message display area is big, simple, intuitive, and vehicle condition is believed
The transient fluctuation of breath shows sensitive, efficient the problem of helping engineers positioning vehicle place.
A kind of NVH of the utility model tests vehicle condition information display device, including display screen, gooseneck and sucker, described
The side of display screen be equipped with OBD II interface, the opposite other side be equipped with bnc interface, the both ends of the gooseneck respectively with display
Screen is connected with sucker, and the display area of the display screen half is for showing two information of engine speed and speed per hour, goose
Neck tube can go to the position of fixed display screen according to different positions, simple to operate, and sucker is used to inhale the front windshield glass in vehicle
On glass, it is used together with gooseneck and conveniently the present apparatus is fixed on steering wheel instrument desk in front, need to change
When other vehicles, convenient disassembly, while the key information area that display screen is shown is big, it is intuitive, clear and simple.
Further, the present apparatus is realized based on the mode monitored in real time, has the situation of remote of identification various
Function, realize process it is as follows:
1) start cognitive phase: the OBD II interface of the present apparatus connects vehicle diagnosis interface, using diagnosis interface inquiry side
Formula gets speed, the ID number of revolving speed, byte initial position, conversion coefficient information；
2) identify matching stage: according to get speed, rotary speed information, with the vehicle model information database built in system into
Row compares, and matches the vehicle currently tested；
3) information show, output stage: this equipment shows situation of remote, and central processing unit converts revolving speed and vehicle speed data
It is exported for pulse signal from bnc interface, is directly used in NVH test.
The real-time listening mode of the present apparatus is not only noiseless to engine operation, moreover it is possible to which the data for reaching 100Hz update speed
Degree, effectively overcome directly adopt ISO15765 agreement obtain revolving speed and speed signal it is intrinsic temporal resolution it is poor (lead to
Often it is no more than 20Hz) the problem of, NVH test has been fully met to revolving speed and speed required precision, and present apparatus installation is simple, is not necessarily to
Debugging, does not need special speed probe not only, also can avoid sensor wire and passes through door and window bring sealing problem, is
The choosing of the ideal of NVH test and evaluation.
Further, the OBD II interface is connect with vehicle diagnosis interface, and the present apparatus passes through the real-time prison of OBD II interface
It listens mode noiseless to engine operation, avoids traditional acquisition information drawback big to engine jamming.
Further, the display screen is additionally provided with USB interface, meets different external equipments.
Further, the display screen back side is equipped with pedestal, and the pedestal is equipped with rotating bar, and one end of the gooseneck passes through
On the base, the other end of the gooseneck is connect with sucker by turn buckle the interspersed connection of rotating bar, one end of gooseneck around
Rotating bar rotation, facilitates the angle for adjusting display screen, and the other end of gooseneck passes through turn buckle left-right rotation, the both ends of gooseneck
Flexible configuration make being arranged and fixed conveniently for display screen quick, disassembly also enhanced convenience.
Further, the display screen is liquid crystal display, this display screen high sensitivity, display is clear, is suitable as vehicle-mounted NVH and surveys
Try display screen.
The beneficial effects of the utility model are: the present apparatus fixed position letter when being installed on the vehicle that different NVH is tested
Single quick, convenient disassembly, screen is big, and key message display area is big, simple, intuitive, and the transient fluctuation of situation of remote is shown
It is sensitive, where efficient the problem of helping engineers positioning vehicle.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, in attached drawing, each element or portion
Dividing might not draw according to actual ratio.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structure schematic diagram of the utility model.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model, following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
A kind of NVH test vehicle condition information display device of the utility model includes display screen 3, gooseneck 6 and sucker 8, institute
The side for stating display screen 3 is equipped with OBD II interface 2, and the opposite other side is equipped with bnc interface 9, and the both ends of the gooseneck 6 are distinguished
It is connect with display screen 3 and sucker 8, the display area of 3 half of display screen is for showing engine speed and speed per hour two
A information, engine revolution display area 5, speed per hour display area are 1, and other some information display areas are 11, gooseneck 6
The position of fixed display screen 3 can be gone to according to different positions, simple to operate, sucker 8 is used to inhale the front windshield in vehicle
On, it is used together with gooseneck 6 and conveniently the present apparatus is fixed on steering wheel instrument desk in front, need to change it
When his vehicle, convenient disassembly, while the key information area that display screen is shown is big, it is intuitive, clear and simple.
In the present embodiment, the present apparatus be to be realized based on the mode monitored in real time, have identification various vehicle condition
The function of information realizes that process is as follows:
1) start cognitive phase: the OBD II interface of the present apparatus connects vehicle diagnosis interface, using CAN bus inquiry side
Formula gets speed, the ID number of revolving speed, byte initial position, conversion coefficient information；
2) identify matching stage: according to get speed, rotary speed information, with the vehicle model information database built in system into
Row compares, and matches the vehicle currently tested；
3) information show, output stage: this equipment shows situation of remote, and central processing unit converts revolving speed and vehicle speed data
It is exported for pulse signal from bnc interface, is directly used in NVH test.
The real-time listening mode of the present apparatus is not only noiseless to engine operation, moreover it is possible to which the data for reaching 100Hz update speed
Degree, effectively overcome directly adopt ISO15765 agreement obtain revolving speed and speed signal it is intrinsic temporal resolution it is poor (lead to
Often it is no more than 20Hz) the problem of, NVH test has been fully met to revolving speed and speed required precision, and present apparatus installation is simple, is not necessarily to
Debugging, does not need special speed probe not only, also can avoid sensor wire and passes through door and window bring sealing problem, is
The choosing of the ideal of NVH test and evaluation.
In the present embodiment, the OBD II connect, 2 connect with vehicle diagnosis interface, and the present apparatus passes through the reality of OBD II interface 2
When listening mode it is noiseless to engine operation, avoid traditional acquisition information drawback big to engine jamming.
In the present embodiment, the display screen 3 be additionally provided with USB interface, meet different external equipments.
In the present embodiment, the back side of the display screen 3 be equipped with pedestal 13, the pedestal 13 be equipped with rotating bar 12, the goose
One end of neck tube 6 is connected on pedestal 13 by the way that rotating bar 12 is interspersed, and the other end and sucker 8 of the gooseneck pass through turn buckle
One end of 7 connections, gooseneck is rotated around rotating bar 12, facilitates the angle for adjusting display screen, and the other end of gooseneck passes through rotation
7 left-right rotations are detained, the flexible configuration at the both ends of gooseneck makes being arranged and fixed conveniently for display screen 3 quick, and disassembly is also more square
Just.
In the present embodiment, the display screen 3 be liquid crystal display, this display screen high sensitivity, display is clear, is suitable as vehicle-mounted
NVH tests display screen.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the utility model is respectively implemented
The range of example technical solution, should all cover in the claim of the utility model and the range of specification.
Claims (5)
1. a kind of NVH tests vehicle condition information display device, it is characterised in that: including display screen (3), gooseneck (6) and sucker
(8), the side of the display screen (3) is equipped with OBD II interface (2), and the opposite other side is equipped with bnc interface (9), the gooseneck
The both ends of pipe (6) are connect with display screen (3) and sucker (8) respectively, and the display area of display screen (3) half is for showing
Show two information of engine speed and speed per hour.
2. a kind of NVH according to claim 1 tests vehicle condition information display device, it is characterised in that: the OBD II connects
Mouth (2) is connect with vehicle diagnosis interface.
3. a kind of NVH according to claim 1 tests vehicle condition information display device, it is characterised in that: the display screen (3)
It is additionally provided with USB interface.
4. a kind of NVH according to claim 1 tests vehicle condition information display device, it is characterised in that: the display screen (3)
The back side be equipped with pedestal (13), the pedestal (13) is equipped with rotating bar (12), and one end of the gooseneck passes through rotating bar (12)
Interspersed to be connected on pedestal (13), the other end of the gooseneck (6) is connect with sucker (8) by turn buckle (7).
5. a kind of NVH according to claim 1 tests vehicle condition information display device, it is characterised in that: the display screen (3)
For liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216248.8U CN209600400U (en) | 2018-12-27 | 2018-12-27 | A kind of NVH test vehicle condition information display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216248.8U CN209600400U (en) | 2018-12-27 | 2018-12-27 | A kind of NVH test vehicle condition information display device |
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| Publication Number | Publication Date |
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| CN209600400U true CN209600400U (en) | 2019-11-08 |
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| CN201822216248.8U Active CN209600400U (en) | 2018-12-27 | 2018-12-27 | A kind of NVH test vehicle condition information display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022121526B3 (en) | 2022-08-25 | 2023-12-28 | Bayerische Motoren Werke Aktiengesellschaft | Method for acoustically checking a motor vehicle, in particular on a test bench, and test bench |
-
2018
- 2018-12-27 CN CN201822216248.8U patent/CN209600400U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022121526B3 (en) | 2022-08-25 | 2023-12-28 | Bayerische Motoren Werke Aktiengesellschaft | Method for acoustically checking a motor vehicle, in particular on a test bench, and test bench |
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