CN109228834B - Vehicle door sealing adjusting system and method for improving NVH performance of vehicle - Google Patents
Vehicle door sealing adjusting system and method for improving NVH performance of vehicle Download PDFInfo
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- CN109228834B CN109228834B CN201811099608.9A CN201811099608A CN109228834B CN 109228834 B CN109228834 B CN 109228834B CN 201811099608 A CN201811099608 A CN 201811099608A CN 109228834 B CN109228834 B CN 109228834B
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Seal Device For Vehicle (AREA)
Abstract
The invention provides a vehicle door sealing adjusting system and a vehicle door sealing adjusting method for improving NVH (noise, vibration and harshness) performance of an automobile, wherein the adjusting system comprises an ECU (electronic control Unit), a sensor, a sealing strip controller and an air charging and discharging device; and the ECU receives the information acquired by the sensor to judge the state of the automobile, transmits an instruction for adjusting the sealing pressure to the air inflation and deflation equipment through the sealing strip controller, and the air inflation and deflation equipment performs corresponding actions to adjust the sealing pressure. The sealing strip sealing device provides different sealing pressures for different use working conditions of the automobile, can improve NVH performance, improve door closing comfort, prevent violent door closing and improve the use comfort of the automobile.
Description
Technical Field
The invention relates to an intelligent control system for automobile sealing, in particular to an automobile door sealing adjusting system and an adjusting method for improving NVH performance of an automobile.
Background
China has become a major automobile manufacturing country, and is currently carrying out industrial upgrading and technical innovation facing to the automobile technology forcing country. Further improvements in manufacturing quality require more intensive and detailed research from the source of automotive design. Sealing performance is an important index for measuring automobile quality, and is an embodiment for solving the requirements of passengers on silence comfort and smoothness, scientific research personnel and engineering technical personnel make important progress on main sources such as engine noise, chassis transmission noise and the like after many years of efforts, traditional secondary factors influencing comfort are prominent as main sources for meeting higher market demands, and design and optimization of an automobile body sealing system become important research targets increasingly.
The automobile body sealing system is an important component of an automobile body, can effectively prevent external sand blown by the wind, rainwater, dust and noise as a relatively independent subsystem, plays roles in sound insulation, dust prevention, seepage prevention and shock absorption, can maintain and maintain a small environment in an automobile, plays an important role in protecting passengers, electromechanical devices and accessories in the automobile, meets riding comfort and safety, has important influence on automobile quality obviously perceived by passengers such as high-speed silence, window glass lifting smoothness and the like, and is the centralized embodiment of the NVH performance of the whole automobile.
The vehicle body sealing system mainly depends on rubber and plastic sealing strips used for vehicle doors, vehicle windows, vehicle bodies, skylights, engine cases, trunk backs and the like. The sealing strips are key parts for ensuring the sealing performance of the automobile and mainly comprise door sealing strips, two-cover sealing strips and auxiliary sealing strips.
However, with the increasing development of highway networks, the driving speed is greatly increased, and for the high-speed driving working condition, the vehicle door and the vehicle window sealing system must meet the more rigorous high-speed sound insulation and noise reduction sealing requirements, and meanwhile, the vehicle door sealing system also greatly influences the opening and closing comfort of the vehicle door. The existing vehicle body sealing system can not meet the requirement of passengers on sealing performance, and has the following problems:
(1) the section of the existing sealing strip cannot meet the sealing performance of a vehicle under a high-speed working condition, a new section needs to be designed when the sealing strip is newly developed, a series of sealing tests are carried out, the required development cost is high, and unpredictable risks exist in actual loading.
(2) The optimal sealing compression amount of the existing sealing strip is fixed, and the comfortable door closing force and the sealing performance after door closing are difficult to satisfy at the same time.
(3) The sealing strip can provide certain shock attenuation effect under specific operating mode, but can not play fine shock attenuation effect when other operating modes (high speed, jolt).
(4) The sealing strip cross-section of different positions can not be general, need develop the sealing strip of different cross-sections to different positions, and the commonality is relatively poor.
Disclosure of Invention
Aiming at the problems in the existing automobile sealing system, the invention provides an automobile door sealing adjusting system and an adjusting method for improving the NVH performance of an automobile.
In order to achieve the aim, the invention discloses a vehicle door sealing adjusting system for improving the NVH performance of an automobile, which is characterized by comprising an ECU (electronic control Unit), a sensor, a sealing strip controller and an air charging and discharging device;
and the ECU receives the information acquired by the sensor to judge the state of the automobile, transmits an instruction for adjusting the sealing pressure to the air inflation and deflation equipment through the sealing strip controller, and the air inflation and deflation equipment performs corresponding actions to adjust the sealing pressure.
Further, the sensor includes speed sensor, vehicle start sensor and switch door sensor, speed sensor response car speed of closing the door, vehicle start sensor perception vehicle is whether started, switch door sensor response door on-off state.
Further, the inflation and deflation equipment is of a sealing strip structure capable of inflating and deflating.
The invention also discloses a vehicle door sealing adjusting method for improving the NVH performance of the vehicle, which is characterized in that the adjusting method is realized by the steps that the ECU receives the sensor information to identify the vehicle state, judges the sealing pressure required by each working condition of the vehicle, sends an instruction for adjusting the sealing pressure to the required sealing pressure to the air charging and discharging device through the sealing strip controller, and the air charging and discharging device adjusts the sealing pressure to the corresponding required sealing pressure.
Further, under each working condition, the sealing and adjusting process of the vehicle door is as follows:
(1) when the ECU identifies that the vehicle is in a driving state, a driving high-pressure maintaining signal is sent to the air charging and discharging device through the sealing strip controller, and the sealing pressure of the air charging and discharging device maintains the driving high pressure;
(2) when the vehicle is stopped, the ECU identifies the opening of the vehicle door through the door opening and closing sensor, sends a signal for reducing the sealing pressure to the intelligent pressure control value to the air charging and discharging device through the sealing strip controller, and the air charging and discharging device reduces the sealing pressure from the high pressure of the vehicle to the intelligent pressure control value and keeps the sealing pressure;
(3) when the vehicle is in a vehicle door closing process, the ECU identifies the real-time vehicle door closing speed through the speed sensor, and sends a signal for adjusting the sealing pressure to the instantaneous high pressure or the instantaneous low pressure corresponding to the corresponding vehicle door closing speed to the air charging and discharging device, and the sealing pressure of the air charging and discharging device is increased to the instantaneous high pressure or reduced to the instantaneous low pressure on the basis of the intelligent pressure control value;
(4) when the ECU identifies that the vehicle door is closed through the door opening and closing sensor, the sealing strip controller sends a signal for adjusting the sealing pressure to the parking middle pressure to the air charging and discharging device, and the air charging and discharging device adjusts the sealing pressure from the instantaneous high pressure or the instantaneous low pressure to the parking middle pressure and keeps the sealing pressure;
(5) and after the ECU identifies the vehicle starting through the vehicle starting sensor, the sealing strip controller sends a pressurizing to driving high-pressure signal to the air charging and discharging device, and the sealing pressure of the air charging and discharging device is pressurized to driving high pressure through the parking medium pressure.
Further, the intelligent pressure control value obtaining process is as follows: the regulating system records the door closing speed of the last ten times through the speed sensor, calculates and obtains the average speed, and takes the preset sealing pressure corresponding to the average speed as an intelligent pressure control value.
The invention has the beneficial effects that:
the seal adjusting system has universality, reduces development cost, and can change the attaching width of the sealing strip and a metal plate by adjusting the sealing pressure in the sealing strip under different working conditions, thereby improving the sealing performance, reducing the high-speed vibration of a vehicle door and a vehicle window, and improving the NVH performance and the use comfort of the vehicle.
According to the invention, different sealing pressures are provided according to the door closing speed at the moment of closing the door of the vehicle, so that the comfortable door closing force and the sealing performance after the door is closed are simultaneously satisfied, the door closing comfort is improved, and the adverse effect of violent door closing is avoided.
Drawings
FIG. 1 is a schematic illustration of an applicable area of a vehicle door seal adjustment system for improving NVH performance of a vehicle according to the present invention;
FIG. 2 is a schematic view of a vehicle door seal adjustment system for improving NVH performance of a vehicle according to the present invention;
FIG. 3 is a schematic view of the structure of the inflation/deflation equipment of the present invention;
FIG. 4 is a schematic structural diagram of a vehicle door seal adjustment system for improving NVH performance of a vehicle according to the present invention at a vehicle door;
FIG. 5 is a flow chart of a method for adjusting vehicle door sealing to improve NVH performance of a vehicle according to the present invention.
Wherein: 1-front side door, 2-rear side door, 3-back door, 4-skylight, 5-ECU, 6-sealing strip controller, 7-speed sensor, 8-vehicle start sensor, 9-door opening and closing sensor, 10-air charging and discharging device, 10.1-air pressure regulator, 10.2-electronic valve box, 10.3-sealing strip, 11-capacitance sensor and 12-wire harness set.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
In the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected or capable of communicating with each other, directly connected, indirectly connected through an intermediate medium, or communicated between two components, or interacting between two components. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The embodiment describes a vehicle door seal adjusting system and an adjusting method for improving the NVH performance of an automobile, and the adjusting system can be widely applied to sealing of a vehicle body and other fields, wherein the vehicle body is applied to the opening and closing positions of a front side door 1, a rear side door 2, a back door 3, a skylight 4 and the like shown in fig. 1.
The regulating system mainly comprises an ECU5, a sensor, a seal strip controller 6 and an air charging and discharging device 10, as shown in FIG. 2. The ECU5 is a control unit of the regulating system, and is connected to the sensor and the seal strip controller 6, respectively, and determines the state of the vehicle by the received sensor information, and transmits a command for adjusting the sealing pressure to the air inflation and deflation device 10 by the seal strip controller 6, and the air inflation and deflation device 10 performs corresponding actions to adjust the sealing pressure, so as to realize accurate sealing. The adjusting system can be provided with a plurality of sensors to collect sensing information under different working conditions. If the speed sensor 7, the vehicle starting sensor 8 and the door opening and closing sensor 9 are adapted to the position of the vehicle door, the speed sensor 7 can sense the door closing speed of the automobile, the vehicle starting sensor 8 can sense whether the automobile is started, and the door opening and closing sensor 9 can sense the opening and closing state of the vehicle door.
The inflation and deflation equipment 10 is a sealing strip structure capable of inflating and deflating, and sealing pressure is adjusted through inflation and deflation. The inflation and deflation device 10 shown in fig. 3 can be used, which comprises an air pressure regulator 10.1, an electronic valve box 10.2 and a sealing strip 10.3. The air pressure regulator 10.1 is connected with the sealing strip 10.3 through the electronic valve box 10.2, the air pressure regulator 10.1 is used for inflating and deflating the sealing strip 10.3, and the electronic valve box 10.2 is used for controlling the inflating and deflating time and speed so as to regulate the sealing pressure of the sealing strip 10.3. The surface of the sealing strip 10.3 can be attached with a capacitive sensor 11 for detecting the sealing pressure of the sealing strip 10.3 in real time.
In the adjusting system, the air pressure regulator 10.1, the electronic valve box 10.2 and the capacitance sensor 11 are respectively connected with the sealing strip controller 6, the sealing strip controller 6 controls the air pressure regulator 10.1 and the electronic valve box 10.2 to adjust the sealing pressure of the sealing strip 10.3, and the capacitance sensor 11 transmits the detected sealing pressure to the sealing strip controller 6.
The following describes a specific technical scheme in detail by taking an adjusting system at the position of the front side door 1 as an example, as shown in fig. 4, the ECU5 is connected with the weather strip controller 6 through a wiring harness 12, the speed sensor 7, the vehicle start sensor 8 and the door opening and closing sensor 9 are respectively installed at preset positions of the front side door 1 and are respectively connected with the ECU5 through the wiring harness 12, the weather strip controller 6 is respectively connected with the air pressure regulator 10.1 and the electronic valve box 10.2 through the wiring harness 12, and the weather strip 10.3 is installed on a sealing surface of a door sheet metal.
The detailed process of the regulating system for the sealing pressure is as follows:
the ECU5 receives the sensor information to identify the vehicle state, judges the sealing pressure required by each working condition of the vehicle, sends an instruction for adjusting the sealing pressure to the required sealing pressure to the air inflation and deflation device 10 through the sealing strip controller 6, and the air inflation and deflation device 10 adjusts the sealing pressure to the corresponding required sealing pressure.
As shown in fig. 5, the sealing adjustment process of the vehicle door under each working condition is as follows:
1. when the vehicle is in a driving state, the ECU5 recognizes that the vehicle is in the driving state, sends a driving high-pressure maintaining signal to the inflation and deflation equipment 10 through the sealing strip controller 6, and the sealing pressure of the inflation and deflation equipment 10 maintains the driving high pressure;
2. when the vehicle is stopped and is in a vehicle door opening state, the ECU5 identifies the opening of the vehicle door through the door opening and closing sensor 9, sends a signal for reducing the sealing pressure to the intelligent pressure control value to the air charging and discharging device 10 through the sealing strip controller 6, and the air charging and discharging device 10 reduces the sealing pressure from the high pressure of the vehicle to the intelligent pressure control value and keeps the sealing pressure;
the regulating system records the habit of the car owner through a behavior learning function and sets an intelligent pressure control value in advance. The intelligent pressure control value obtaining process comprises the following steps: the regulating system records the door closing speed of the last ten times through the speed sensor 7, calculates and obtains the average speed, and takes the preset sealing pressure corresponding to the average speed as an intelligent pressure control value;
3. when the vehicle is in a door closing process, the ECU5 identifies the door closing speed of the current door closing through the speed sensor 7, and sends a signal for adjusting the sealing pressure to the corresponding instantaneous high pressure or instantaneous low pressure corresponding to the door closing speed to the air charging and discharging device 10, and when the door closing speed is higher, the sealing pressure is high so as to prevent the collision of the vehicle body of the vehicle door and reduce the door closing noise; when the closing speed of the vehicle door is low, the sealing pressure is reduced, and the vehicle door can be completely closed; the sealing pressure of the air charging and discharging device 10 is increased to instantaneous high pressure or reduced to instantaneous low pressure on the basis of the intelligent pressure control value;
when the vehicle door is closed, because the sealing pressure is adjusted to the intelligent pressure control value, the instantaneous high pressure or the instantaneous low pressure can be achieved by properly adjusting the sealing pressure on the basis of the intelligent pressure control value, and the sealing pressure adjusting efficiency is improved;
4. when the vehicle is in a closed state of the vehicle door, the ECU5 recognizes that the vehicle door is closed through the door opening and closing sensor 9, sends a signal for adjusting the sealing pressure to the parking middle pressure to the air inflation and deflation device 10 through the sealing strip controller 6, and the air inflation and deflation device 10 adjusts the sealing pressure from the instantaneous high pressure or the instantaneous low pressure to the parking middle pressure and keeps the same;
5. when the vehicle starts, the ECU5 sends a pressurization to driving high-pressure signal to the inflation and deflation device 10 through the sealing strip controller 6 after the vehicle starts is identified by the vehicle start sensor 8, and the sealing pressure of the inflation and deflation device 10 is pressurized to driving high pressure from parking medium pressure.
When the sealing strip runs at high speed, the sealing pressure in the sealing strip is increased, the contact area between the sealing strip and a metal plate can be increased, and the sealing performance is improved.
While the principles of the invention have been described in detail in connection with the preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing embodiments are merely illustrative of exemplary implementations of the invention and are not limiting of the scope of the invention. The details of the embodiments are not to be interpreted as limiting the scope of the invention, and any obvious changes, such as equivalent alterations, simple substitutions and the like, based on the technical solution of the invention, can be interpreted without departing from the spirit and scope of the invention.
Claims (4)
1. A vehicle door sealing adjusting system for improving NVH performance of an automobile is characterized by comprising an ECU (5), a sensor, a sealing strip controller (6) and an air charging and discharging device (10);
the sensors comprise a speed sensor (7), a vehicle starting sensor (8) and a door opening and closing sensor (9), and the speed sensor (7), the vehicle starting sensor (8) and the door opening and closing sensor (9) are respectively connected with the ECU (5);
the ECU (5) receives the information acquired by the sensor to judge the state of the automobile, transmits a command of adjusting sealing pressure to the inflation and deflation equipment (10) through the sealing strip controller (6), senses the closing speed of the automobile through the speed sensor (7), and the inflation and deflation equipment (10) adjusts the sealing pressure to the instantaneous high pressure or the instantaneous low pressure corresponding to the closing speed of the corresponding automobile door; after the vehicle starting sensor (8) senses the starting of the vehicle, the air charging and discharging equipment (10) adjusts the sealing pressure to the high driving pressure; the door opening and closing state of the vehicle door is sensed through the door opening and closing sensor (9), when the vehicle door is closed, the sealing pressure is adjusted to the parking middle pressure through the air charging and discharging device (10), and when the vehicle door is opened, the sealing pressure is adjusted to the intelligent pressure control value through the air charging and discharging device (10).
2. A vehicle door seal adjustment system for improving NVH performance of an automobile according to claim 1, wherein the inflation/deflation device (10) is a sealing strip structure capable of inflating and deflating.
3. An ECU (5) receives sensor information to identify the state of a vehicle, judges the sealing pressure required by each working condition of the vehicle, sends a command of adjusting the sealing pressure to the required sealing pressure to an air charging and discharging device (10) through a sealing strip controller (6), and the air charging and discharging device (10) adjusts the sealing pressure to the corresponding required sealing pressure;
under each working condition, the sealing and adjusting process of the vehicle door is as follows:
(1) when the ECU (5) identifies that the vehicle is in a driving state, a driving high-pressure maintaining signal is sent to the air charging and discharging device (10) through the sealing strip controller (6), and the sealing pressure of the air charging and discharging device (10) maintains the driving high pressure;
(2) when the vehicle is stopped stably, the ECU (5) identifies the opening of the vehicle door through the door opening and closing sensor (9), sends a signal for reducing the sealing pressure to an intelligent pressure control value to the air charging and discharging device (10) through the sealing strip controller (6), and the air charging and discharging device (10) reduces the sealing pressure from the high pressure of the vehicle to the intelligent pressure control value and keeps the sealing pressure;
(3) when the vehicle is in a vehicle door closing process, the ECU (5) identifies the real-time vehicle door closing speed through the speed sensor (7) and sends a signal for adjusting the sealing pressure to the corresponding instantaneous high pressure or instantaneous low pressure corresponding to the vehicle door closing speed to the air charging and discharging device (10), and the sealing pressure of the air charging and discharging device (10) is increased to the instantaneous high pressure or reduced to the instantaneous low pressure on the basis of the intelligent pressure control value;
(4) when the ECU (5) identifies that the vehicle door is closed through the door opening and closing sensor (9), the sealing strip controller (6) sends a signal for adjusting the sealing pressure to the parking medium pressure to the air charging and discharging device (10), and the air charging and discharging device (10) adjusts the sealing pressure from the instantaneous high pressure or the instantaneous low pressure to the parking medium pressure and keeps the sealing pressure;
(5) and when the ECU (5) identifies the vehicle starting through the vehicle starting sensor (8), the pressurization is sent to the air charging and discharging device (10) through the sealing strip controller (6) to send a high-pressure signal to the running vehicle, and the sealing pressure of the air charging and discharging device (10) is pressurized to the high pressure of the running vehicle through the parking medium pressure.
4. A vehicle door seal adjustment method for improving NVH performance of an automobile according to claim 3, wherein the intelligent control pressure value obtaining process is: the regulating system records the door closing speed of the last ten times through the speed sensor (7), calculates and obtains the average speed, and takes the preset sealing pressure corresponding to the average speed as an 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 |
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| Publication Number | Publication Date |
|---|---|
| CN109228834A CN109228834A (en) | 2019-01-18 |
| CN109228834B true CN109228834B (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811099608.9A Active CN109228834B (en) | 2018-09-20 | 2018-09-20 | Vehicle door sealing adjusting system and method for improving NVH performance of vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685105B (en) * | 2021-08-11 | 2023-04-14 | 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 (4)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180067266A (en) * | 2016-12-12 | 2018-06-20 | 현대자동차주식회사 | Wetherstrip for vehicle and method for manufacturing the same |
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2018
- 2018-09-20 CN CN201811099608.9A patent/CN109228834B/en active Active
Patent Citations (4)
| 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 |
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| CN109228834A (en) | 2019-01-18 |
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