CN109228834A - A kind of door sealing regulating system and adjusting method improving auto NVH performance - Google Patents
A kind of door sealing regulating system and adjusting method improving auto NVH performance Download PDFInfo
- Publication number
- CN109228834A CN109228834A CN201811099608.9A CN201811099608A CN109228834A CN 109228834 A CN109228834 A CN 109228834A CN 201811099608 A CN201811099608 A CN 201811099608A CN 109228834 A CN109228834 A CN 109228834A
- Authority
- CN
- China
- Prior art keywords
- door
- inflation
- pressure
- sensor
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/20—Sealing arrangements characterised by the shape
- B60J10/24—Sealing arrangements characterised by the shape having tubular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/80—Sealing arrangements specially adapted for opening panels, e.g. doors
- B60J10/84—Sealing arrangements specially adapted for opening panels, e.g. doors arranged on the vehicle body
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seal Device For Vehicle (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The present invention provides a kind of door sealing regulating system and adjusting method for improving auto NVH performance, and the regulating system includes ECU, sensor, sealing strip controller and inflation/deflation equipment；The information that the ECU receives the sensor acquisition judges vehicle condition, transmits the instruction of adjustment sealed pressure to the inflation/deflation equipment by the sealing strip controller, and the inflation/deflation equipment carries out corresponding actions regulating sealing pressure.The present invention provides different sealing strip sealed pressures for automobile difference applying working condition, and NVH performance can be improved, improve shutdown comfort, prevent violence from closing the door, improve vehicle comfort.
Description
Technical field
The present invention relates to a kind of automobile sealed intelligence control system, it is specifically related to a kind of auto NVH performance that improves
Door sealing regulating system and adjusting method.
Background technique
China has become " automobile manufacture big country ", currently carries out industrial upgrading and skill towards " automotive engineering power "
Art innovation.Manufacturing quality further increases needs and carries out more deep, careful research from this source of Automobile Design.Sealing
Performance is to measure an important indicator of automotive quality, is the embodiment for solving passenger for mute comfort and ride comfort requirement,
Scientific research personnel and engineers and technicians pass through many years effort, on the major sources such as engine noise, chassis rotational noise
Important advance is obtained, to meet the higher market demand, the traditional secondary cause for influencing comfort is highlighted as major source, and vehicle body is close
The design of envelope system and its optimization have become important goal in research.
Body of a motor car sealing system is the important component of body of a motor car, can be effective as relatively independent subsystem
Prevent external dust storm, rainwater, dust and noise, play the role of sound insulation, dust-proof, water-impervious and damping, and be able to maintain and
Subenvironment in maintenance cart plays important protective action to passenger, electromechanical assembly and accessory, meets ride comfort
With safety, the automotive quality that can obviously perceive to passengers such as high-speed silent, lifting glass for vehicle window ride comforts is had a major impact,
It is the concentrated reflection of vehicle NVH performance.
Vehicle body sealing system is relied primarily on for car door, vehicle window, vehicle body, skylight, engine case and standby (luggage) case etc.
The rubber seal at position.Sealing strip is to ensure that the key components and parts of automobile sealed performance, is broadly divided into door weather strip, Liang Gai
Sealing strip and auxiliary seal three categories.
But with the increasingly prosperity of highway network, running speed is increased substantially, towards operating condition of running at high speed, car door
And window seal system must satisfy harsher high speed sound insulation, noise reduction seal request, while sealing system for vehicle door is also great
Affect car door folding comfort.Existing vehicle body sealing system has been unable to meet requirement of the passenger to sealing performance, exist with
Lower problem:
(1) existing sealing strip section is unable to satisfy the sealing performance of vehicle under high-speed working condition, and sealing strip newly developed needs
New section is designed, and carries out a series of sealing test, required development cost is higher, and there is also can not in practical entrucking
The risk of prediction.
(2) the optimal seal decrement of sealing strip is fixed at present, it is difficult to while after meeting comfortable door closing force and closing the door
Sealing performance.
(3) sealing strip can provide certain damping effect under specific operation, but in other operating condition (high speed is jolted)
It is different surely to play good damping effect.
(4) different position seals sections cannot be general, needs the sealing for different position exploitation different cross sections
Item, versatility are poor.
Summary of the invention
For the above problem present in existing automotive sealing system, the present invention, which provides, a kind of improves auto NVH performance
Door sealing regulating system and adjusting method, the regulating system can be according to the sealing pressures in different operating condition soft readjustment sealing strips
Power to improve vehicle sealing performance, and then improves the NVH performance of vehicle.
To achieve the above object, special the invention discloses a kind of door sealing regulating system for improving auto NVH performance
Sign is that the regulating system includes ECU, sensor, sealing strip controller and inflation/deflation equipment；
The information that the ECU receives sensor acquisition judges vehicle condition, by the sealing strip controller to institute
The instruction of inflation/deflation equipment transmission adjustment sealed pressure is stated, the inflation/deflation equipment carries out corresponding actions regulating sealing pressure.
Further, the sensor includes velocity sensor, vehicle start sensor and switch door sensor, the speed
The speed that sensor sensing automobile is closed the door is spent, whether the vehicle start sensor perception vehicle starts, the switch gate sensing
Device incudes door contact interrupter state.
Further, the inflation/deflation equipment is the gasket structure for capableing of inflation/deflation.
The invention also discloses a kind of door sealing adjusting methods for improving auto NVH performance, which is characterized in that the tune
The process that section method is realized is: ECU receiving sensor information identifies vehicle-state, sealing pressure needed for judging each operating condition of automobile
Power sends the instruction of adjustment sealed pressure to required sealed pressure to inflation/deflation equipment by sealing strip controller, and inflation/deflation is set
It is standby to adjust sealed pressure to corresponding required sealed pressure.
Further, under each operating conditions, door sealing adjustment process is:
(1), driving states are in when ECU recognizes vehicle, are sent and is kept to inflation/deflation equipment by sealing strip controller
Driving high-voltage signal, the sealed pressure of inflation/deflation equipment keep driving high pressure；
(2), when vehicle comes to a complete stop, ECU identifies car door opening by switch door sensor, by sealing strip controller to charge and discharge
Gas equipment, which is sent, reduces sealed pressure to intelligent pressure control value signal, and sealed pressure is depressurized to intelligence by driving high pressure by inflation/deflation equipment
Energy pressure control value is simultaneously kept；
(3), when vehicle is in closing of the door process, ECU identifies real-time closing of the door speed by velocity sensor,
And it is sent to inflation/deflation equipment and adjusts sealed pressure to the corresponding instantaneous high pressure of corresponding closing of the door speed or instantaneous low pressure
The sealed pressure of signal, inflation/deflation equipment is pressurized to instantaneous high pressure on the basis of intelligent pressure control value or is depressurized to instantaneous low pressure；
(4), closing of the door is recognized by switching door sensor as ECU, by sealing strip controller to inflation/deflation equipment
Send adjustment sealed pressure and press signal into stopping, inflation/deflation equipment by sealed pressure by instantaneous high pressure or instantaneous low pressure adjust to
It presses and keeps in stop；
(5), after ECU recognizes vehicle launch by vehicle start sensor, by sealing strip controller to inflation/deflation
Equipment transmission is pressurized to driving high-voltage signal, and the sealed pressure of inflation/deflation equipment is pressurized to driving high pressure by pressure in stopping.
Further, the intelligent pressure control value, which obtains process, is: regulating system is recorded nearest ten times by velocity sensor
Door closing speed, calculate and obtain average speed, using the corresponding default sealed pressure of average speed as intelligence pressure control value.
Beneficial effects of the present invention:
Sealing regulating system of the invention has versatility, reduces development cost, close by adjusting under different operating conditions
Sealed pressure can change sealing strip and be bonded width with metal plate in strip of paper used for sealing, to improve sealing performance, and reduce car door, vehicle window
High speed vibration improves NVH performance and vehicle comfort.
The moment that the present invention closes the door in vehicle provides different sealed pressures according to door closing speed, comfortable to meet simultaneously
Sealing performance after door closing force and shutdown, improves shutdown comfort, the adverse effect for avoiding violence from closing the door.
Detailed description of the invention
Fig. 1 is that the door sealing regulating system of present invention improvement auto NVH performance can application region schematic diagram；
Fig. 2 is the door sealing regulating system schematic diagram that the present invention improves auto NVH performance；
Fig. 3 is inflation/deflation device structure schematic diagram in the present invention；
Fig. 4 is the door sealing regulating system for improving auto NVH performance structural schematic diagram at car door of the invention；
Fig. 5 is the door sealing adjusting method flow chart that the present invention improves auto NVH performance.
Wherein: 1- front side door, 2- rear door, 3- tailgate, 4- skylight, 5-ECU, 6- sealing strip controller, 7- velocity pick-up
Device, 8- vehicle start sensor, 9- switch door sensor, 10- inflation/deflation equipment, 10.1- barostat, 10.2- electronic valve
Door box, 10.3- sealing strip, 11- capacitance sensor, 12- harness collection.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the application, below with reference to specific embodiment
The present invention is described in further details with attached drawing.
In the present invention, term " installation ", " connected ", " connecting ", " connection ", " fixation " etc. be shall be understood in a broad sense, for example, can
It to be to be fixedly connected, may be a detachable connection, be also possible to be integrally connected, be also possible to be mechanically connected, be also possible to
Electrical connection can be in communication with each other, and be also possible to be directly connected to, be also possible to be indirectly connected with by intermediary, can be two
Connection inside component is also possible to the interaction relationship of two components.For those of ordinary skill in the art and
Speech, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
The present embodiment describes a kind of door sealing regulating system and adjusting method for improving auto NVH performance, the adjusting
System can be widely applied to the sealing of vehicle body and other field, on vehicle body using front side door 1 as shown in Figure 1, rear door 2,
The opened and closed positions such as tailgate 3, skylight 4.
The regulating system mainly includes ECU5, sensor, sealing strip controller 6 and inflation/deflation equipment 10, as shown in Figure 2.
Wherein ECU5 is the control unit of the regulating system, is connected respectively with sensor and sealing strip controller 6, passes through received sensing
Device information judges vehicle condition, and transmits the instruction of adjustment sealed pressure to inflation/deflation equipment 10 by sealing strip controller 6, fills
Gas-discharging equipment 10 carries out corresponding actions regulating sealing pressure, to realize precise seal.Sensor can be more in the regulating system
It is a, to acquire the induction information under different operating conditions.Such as adapt to velocity sensor 7,8 and of vehicle start sensor at door position
Door sensor 9 is switched, velocity sensor 7 can incude the speed of automobile shutdown, and vehicle start sensor 8 can perceive whether vehicle opens
Dynamic, switch door sensor 9 can incude door contact interrupter state.
Inflation/deflation equipment 10 be can inflation/deflation gasket structure, pass through inflation/deflation regulating sealing pressure.Fig. 3 such as can be used
The inflation/deflation equipment 10 shown comprising barostat 10.1, electronic valve box 10.2 and sealing strip 10.3.Barostat
10.1 are connected by electronic valve box 10.2 with sealing strip 10.3, and barostat 10.1 is used to carry out charge and discharge to sealing strip 10.3
Gas, electronic valve box 10.2 is for controlling inflation/deflation time and speed, so as to the adjusting of 10.3 sealed pressure of sealing strip.It is sealing
10.3 surface of item can also attach setting capacitance sensor 11, the sealed pressure for real-time detection sealing strip 10.3.
In regulating system barostat 10.1, electronic valve box 10.2 and capacitance sensor 11 respectively with sealing strip control
Device 6 processed is connected, the sealing of 6 control pressure adjuster 10.1 of sealing strip controller and the adjusting sealing strip 10.3 of electronic valve box 10.2
Pressure, the sealed pressure that capacitance sensor 11 will test are transmitted to sealing strip controller 6.
Specific technical solution is discussed in detail by taking the regulating system at 1 position of front side door as an example below, as shown in figure 4, ECU5
It is connected by harness collection 12 with sealing strip controller 6, velocity sensor 7, vehicle start sensor 8 and switch door sensor 9 divide
It is not mounted on the predeterminated position of front side door 1, and is connected respectively by harness collection 12 with ECU5, sealing strip controller 6 passes through line
Constriction 12 is separately connected barostat 10.1 and electronic valve box 10.2, and sealing strip 10.3 is mounted on the sealing surface of car door metal plate
On.
The regulating system is to the detailed process of the adjusting method of sealed pressure:
ECU5 receiving sensor information identifies vehicle-state, and sealed pressure needed for judging each operating condition of automobile passes through sealing
Controller 6 sends adjustment sealed pressure to the instruction of required sealed pressure to inflation/deflation equipment 10, and inflation/deflation equipment 10 will be close
Seal pressure is adjusted to corresponding required sealed pressure.
As shown in figure 5, being in each operating conditions door sealing adjustment process of getting off:
1, when vehicle is in driving states, ECU5 recognizes vehicle and is in driving states, by sealing strip controller 6 to
Inflation/deflation equipment 10, which is sent, keeps driving high-voltage signal, and the sealed pressure of inflation/deflation equipment 10 keeps driving high pressure；
2, when vehicle comes to a complete stop, and is in car door opening state, ECU5 identifies car door opening by switch door sensor 9, leads to
It crosses sealing strip controller 6 and sends reduction sealed pressure to intelligent pressure control value signal to inflation/deflation equipment 10, inflation/deflation equipment 10 will
Sealed pressure is depressurized to intelligent pressure control value by driving high pressure and is kept；
Intelligent pressure control value is arranged by action learning function, record car owner's habit in the regulating system in advance.Intelligent pressure control value
Acquisition process is: regulating system records nearest ten door closing speed by velocity sensor 7, calculates and obtains average speed, will
The corresponding default sealed pressure of average speed is as intelligent pressure control value；
3, when vehicle is in closing of the door process, ECU5 identifies this real-time car door of closing the door by velocity sensor 7
Closing velocity, and send to inflation/deflation equipment 10 sealed pressure is adjusted to the corresponding instantaneous high pressure of corresponding closing of the door speed or
The signal of instantaneous low pressure, when closing of the door speed is higher, sealed pressure is high, to prevent car door vehicle body from colliding, reduces shutdown noise；
When closing of the door speed is lower, sealed pressure is reduced, it is ensured that car door can completely close；The sealed pressure of inflation/deflation equipment 10 is in intelligence
Instantaneous high pressure is pressurized on the basis of energy pressure control value or is depressurized to instantaneous low pressure；
In closing of the door process, since sealed pressure has been adjusted to intelligent pressure control value, fitted on the basis of intelligent pressure control value
It can reach instantaneous high pressure or instantaneous low pressure when adjusting sealed pressure, improve sealed pressure regulated efficiency；
4, when vehicle is in closing of the door state, ECU5 recognizes closing of the door by switching door sensor 9, by close
Strip of paper used for sealing controller 6 sends adjustment sealed pressure to inflation/deflation equipment 10 and presses signal into stopping, and inflation/deflation equipment 10 presses sealing
Power is adjusted by instantaneous high pressure or instantaneous low pressure presses and is kept into stop；
5, it after when a vehicle is started, ECU5 recognizes vehicle launch by vehicle start sensor 8, is controlled by sealing strip
Device 6 is pressurized to driving high-voltage signal to the transmission of inflation/deflation equipment 10, and the sealed pressure of inflation/deflation equipment 10 is pressurized by pressing in stopping
To driving high pressure.
Increase sealed pressure in sealing strip in high-speed cruising, it is possible to increase sealing strip and metal plate contact area improve sealing
Performance.
Although the principle of the present invention is described in detail above in conjunction with the preferred embodiment of the present invention, this field skill
Art personnel are it should be understood that above-described embodiment is only the explanation to exemplary implementation of the invention, not to present invention packet
Restriction containing range.Details in embodiment is simultaneously not meant to limit the scope of the invention, without departing substantially from spirit of the invention and
In the case where range, any equivalent transformation based on technical solution of the present invention, simple replacement etc. obviously change, and all fall within
Within the scope of the present invention.
Claims (6)
1. a kind of door sealing regulating system for improving auto NVH performance, which is characterized in that the regulating system includes ECU
(5), sensor, sealing strip controller (6) and inflation/deflation equipment (10)；
The information that the ECU (5) receives the sensor acquisition judges vehicle condition, by the sealing strip controller (6) to
The instruction of inflation/deflation equipment (10) the transmission adjustment sealed pressure, it is close that the inflation/deflation equipment (10) carries out corresponding actions adjusting
Seal pressure.
2. the sealing system for vehicle door according to claim 1 for improving auto NVH performance, which is characterized in that the sensor
Including velocity sensor (7), vehicle start sensor (8) and switch door sensor (9), the velocity sensor (7) incudes vapour
Whether the speed that vehicle is closed the door, vehicle start sensor (8) the perception vehicle start, and the switch door sensor (9) incudes vehicle
Door opening and closing state.
3. the door sealing regulating system according to claim 1 for improving auto NVH performance, which is characterized in that described to fill
Gas-discharging equipment (10) is the gasket structure for capableing of inflation/deflation.
4. a kind of door sealing adjusting method for improving auto NVH performance, which is characterized in that the process that the adjusting method is realized
Be: ECU (5) receiving sensor information identifies vehicle-state, and sealed pressure needed for judging each operating condition of automobile passes through sealing strip control
Device (6) processed sends to inflation/deflation equipment (10) adjusts the instruction of sealed pressure to required sealed pressure, and inflation/deflation equipment (10) will
Sealed pressure is adjusted to corresponding required sealed pressure.
5. the door sealing adjusting method according to claim 4 for improving auto NVH performance, which is characterized in that each operating condition
In the case of, door sealing adjustment process is:
(1), driving states are in when ECU (5) recognizes vehicle, are sent out by sealing strip controller (6) to inflation/deflation equipment (10)
Holding driving high-voltage signal is sent, the sealed pressure of inflation/deflation equipment (10) keeps driving high pressure；
(2), when vehicle comes to a complete stop, ECU (5) identifies car door opening by switch door sensor (9), passes through sealing strip controller (6)
Sending to inflation/deflation equipment (10) reduces sealed pressure to intelligent pressure control value signal, and inflation/deflation equipment (10) is by sealed pressure by going
Overall height pressure drop is depressed into intelligent pressure control value and keeps；
(3), when vehicle is in closing of the door process, ECU (5) identifies real-time closing of the door speed by velocity sensor (7)
Degree, and sent to inflation/deflation equipment (10) and adjust sealed pressure to the corresponding instantaneous high pressure of corresponding closing of the door speed or instantaneous
The sealed pressure of the signal of low pressure, inflation/deflation equipment (10) is pressurized to instantaneous high pressure on the basis of intelligent pressure control value or is depressurized to wink
When low pressure；
(4), closing of the door is recognized by switching door sensor (9) when ECU (5), by sealing strip controller (6) to inflation/deflation
Equipment (10) sends adjustment sealed pressure and presses signal into stopping, and inflation/deflation equipment (10) is by sealed pressure by instantaneous high pressure or wink
When low pressure adjust and press and keep into stop；
(5), after ECU (5) recognize vehicle launch by vehicle start sensor (8), by sealing strip controller (6) to filling
Gas-discharging equipment (10) transmission is pressurized to driving high-voltage signal, and the sealed pressure of inflation/deflation equipment (10) is pressurized to row by pressure in stopping
Overall height pressure.
6. the door sealing adjusting method according to claim 5 for improving auto NVH performance, which is characterized in that the intelligence
Energy pressure control value obtains process: regulating system records nearest ten door closing speed by velocity sensor (7), calculates to obtain and put down
Equal speed, using the corresponding default sealed pressure of average speed as intelligent pressure control value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099608.9A CN109228834B (en) | 2018-09-20 | 2018-09-20 | Vehicle door sealing adjusting system and method for improving NVH performance of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099608.9A CN109228834B (en) | 2018-09-20 | 2018-09-20 | Vehicle door sealing adjusting system and method for improving NVH performance of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109228834A true CN109228834A (en) | 2019-01-18 |
| CN109228834B CN109228834B (en) | 2020-07-10 |
Family
ID=65059201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811099608.9A Active CN109228834B (en) | 2018-09-20 | 2018-09-20 | Vehicle door sealing adjusting system and method for improving NVH performance of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109228834B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685105A (en) * | 2021-08-11 | 2021-11-23 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Control method and system for closing vehicle door |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971732Y (en) * | 2006-10-19 | 2007-11-07 | 安徽江淮汽车股份有限公司 | Sealing system of vehicle door |
| CN201703231U (en) * | 2010-05-20 | 2011-01-12 | 上海汽车集团股份有限公司 | Sealing system for vehicle door |
| JP2017177829A (en) * | 2016-03-28 | 2017-10-05 | 東海興業株式会社 | Weather Strip |
| CN108081934A (en) * | 2017-12-15 | 2018-05-29 | 奇瑞汽车股份有限公司 | A kind of arrangements for automotive doors door frame sealing structure |
| US20180162208A1 (en) * | 2016-12-12 | 2018-06-14 | Hyundai Motor Company | Weather strip for vehicle and method for manufacturing the same |
-
2018
- 2018-09-20 CN CN201811099608.9A patent/CN109228834B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971732Y (en) * | 2006-10-19 | 2007-11-07 | 安徽江淮汽车股份有限公司 | Sealing system of vehicle door |
| CN201703231U (en) * | 2010-05-20 | 2011-01-12 | 上海汽车集团股份有限公司 | Sealing system for vehicle door |
| JP2017177829A (en) * | 2016-03-28 | 2017-10-05 | 東海興業株式会社 | Weather Strip |
| US20180162208A1 (en) * | 2016-12-12 | 2018-06-14 | Hyundai Motor Company | Weather strip for vehicle and method for manufacturing the same |
| CN108081934A (en) * | 2017-12-15 | 2018-05-29 | 奇瑞汽车股份有限公司 | A kind of arrangements for automotive doors door frame sealing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685105A (en) * | 2021-08-11 | 2021-11-23 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Control method and system for closing vehicle door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109228834B (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101280657B (en) | Vehicle window control system of frameless vehicle window | |
| US10233686B2 (en) | System and method of controlling a vehicle window assembly | |
| CN202319832U (en) | Automatic skylight opening device for sedan car | |
| CN109070871B (en) | Method and device for operating a hybrid vehicle having an electric energy accumulator | |
| CN101700774A (en) | Pressure wave protection system applied to high-speed train | |
| CN109177704A (en) | A kind of the bus door sealing strip and sealing adjusting method of double cavity structure | |
| CN109228834A (en) | A kind of door sealing regulating system and adjusting method improving auto NVH performance | |
| CN104827849A (en) | AHC height controlling system and vehicle | |
| CN110949350A (en) | Control device for electro-pneumatic braking and braking control system | |
| CN110949351A (en) | Vehicle electro-pneumatic brake control device | |
| CN205344481U (en) | Water bar in door window | |
| CN204623067U (en) | A kind of automotive self-adaptive ventilation system | |
| CN208789465U (en) | A kind of bus door sealing strip of double cavity structure | |
| CN101775952A (en) | Method for preventing clamping during opening inner swinging door of passenger carriage | |
| CN112172855B (en) | Control method of fresh air valve in air conditioning unit of cab of railway vehicle | |
| CN103835616A (en) | System and method for controlling automobile door glass lifting | |
| CN202306206U (en) | Active multi-functional voice control system of automobile | |
| CN113309437B (en) | Method and system for controlling closing speed of automatic door of automobile and automobile | |
| CN212447475U (en) | Control device for electro-pneumatic braking and braking control system | |
| CN112879654B (en) | Automatic opening system for large-area pressure release valve in vehicle | |
| CN212373534U (en) | Control system of vehicle spare tire cover plate and vehicle | |
| CN109466577B (en) | Rail transit vehicle, sealing sound insulation method thereof and sealing sound insulation system | |
| CN2780553Y (en) | Infrared ray induction control brake lamp device installed on automobile accelerator pedal | |
| CN112901805B (en) | Automatic opening device for large-area pressure release valve in vehicle | |
| KR19990008464A (en) | Electronic monitoring device installed in the vehicle and its method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |