CN109115520B - Test bench and test method for intelligent vehicle door sealing adjusting system - Google Patents
Test bench and test method for intelligent vehicle door sealing adjusting system Download PDFInfo
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- CN109115520B CN109115520B CN201811141558.6A CN201811141558A CN109115520B CN 109115520 B CN109115520 B CN 109115520B CN 201811141558 A CN201811141558 A CN 201811141558A CN 109115520 B CN109115520 B CN 109115520B
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Abstract
The invention discloses a test bench of an intelligent vehicle door sealing adjusting system and a test method, wherein the test bench comprises an automobile working condition simulator, a data recorder and a mechanical arm; the automobile working condition simulator transmits preset automobile use working condition information to the data recorder, the mechanical arm and the ECU respectively; the mechanical arm drives the vehicle door to execute door opening and closing operation according to the received door opening and closing signals; the ECU controls the air pressure regulator to regulate the sealing air pressure of the sealing rubber strip according to the using condition information of the automobile; the air pressure regulator transmits the real-time air pressure to the data recorder; the data recorder records the using condition information of the automobile and the real-time air pressure of the air pressure regulator. The invention replaces the vehicle actual working condition cycle test vehicle door seal adjusting system with the analog signal to pressurize, release pressure, seal check, action study, instantaneously sense 5 functions and 3 performances of air charging and discharging speed, air charging and discharging noise and reliability, saves the test cost and improves the test efficiency.
Description
Technical Field
The invention relates to a test bench, in particular to a test bench of an intelligent vehicle door sealing adjusting system and a test method.
Background
A plurality of capacitance detection points are densely distributed on an intelligent adhesive tape used in the intelligent sealing and adjusting system, the capacitance detector calculates the fitting area according to the capacitance value, the sealing performance can be accurately and visually evaluated, and then the intelligent adhesive tape is recharged and deflated to enable the sealing to reach the optimal state. In order to realize the purpose, the intelligent adhesive tape needs to be subjected to sealing performance test.
For the sealing performance test, taking the test of a vehicle door sealing rubber strip as an example, at present, paint is uniformly coated on the sealing rubber strip, the sealing rubber strip is kept still for a period of time after being closed, then the door is opened, and the position of the sealing performance and the position of a sealing problem are judged by measuring whether the width of the paint reflected on the side wall is uniform, but the method can cause low measurement precision if the paint is not uniformly coated, the door closing speed of the vehicle door and the like.
Regarding the door closing speed test: at present, the door is closed manually during production, the door closing speed is recorded, the error is large, and the test cannot be carried out on a certain speed; only hand feeling is needed during maintenance, and professional detection is avoided.
Disclosure of Invention
In order to solve the problems in the prior art, the invention discloses a test bench and a test method of an intelligent vehicle door sealing and adjusting system, which are used for simulating the working condition of an automobile, closing the door at a specified speed, efficiently detecting the lowest door closing speed of the automobile and calibrating and testing the functions and the performances of an intelligent sealing rubber strip system.
The specific technical scheme of the invention is as follows:
a test bench of an intelligent vehicle door sealing adjusting system is characterized in that the test bench comprises an automobile working condition simulator, a data recorder and a mechanical arm; the vehicle door sealing and adjusting system comprises an air pressure regulator, an ECU and a sealing rubber strip;
the automobile working condition simulator transmits preset automobile use working condition information to the data recorder, the mechanical arm and the ECU respectively;
the mechanical arm drives the vehicle door and the vehicle door sealing and adjusting system to execute door opening and closing operations according to the received door opening and closing signals; the ECU controls the air pressure regulator to regulate the sealing air pressure of the sealing rubber strip according to the information of the using condition of the automobile; the air pressure regulator transmits real-time air pressure to the data recorder;
and the data recorder records the automobile use condition information and the real-time air pressure of the air pressure regulator.
Further, the test bench still includes the decibel meter, the decibel meter measurement the noise decibel value of joint strip inflation and deflation stage to send the decibel value to the data record appearance.
Further, the test bench still includes capacitive sensor, capacitive sensor detects the capacitance value between joint strip and the sheet metal component to convey the capacitance value to data record appearance.
Further, the test bench further comprises a bench door opening and closing sensor for testing the result of the mechanical arm executing the door closing action each time, and transmitting the door closing result to the automobile working condition simulator and the data recorder in a one-way mode respectively, wherein the automobile working condition simulator makes a next door closing instruction according to the closing condition of the automobile door, and the data recorder records the door closing instruction.
The invention also discloses a test method of the intelligent vehicle door sealing adjustment system, which is characterized by comprising the following steps:
s1, connecting the vehicle door sealing and adjusting system to a test bench;
the system comprises an ECU (electronic control unit) connected with an automobile working condition simulator and an automobile door sealing and adjusting system, a data recorder and an air pressure regulator, a mechanical arm and an automobile door, a decibel meter arranged on one side of the automobile door sealing and adjusting system, a plurality of capacitance patches of a capacitance sensor densely distributed on each detection point of a sealing rubber strip on the automobile door, and a rack door opening and closing sensor arranged on a contact surface of an automobile door buffer rubber plug and a side wall;
s2, inputting various using condition signals of the automobile through an automobile condition simulator, driving the automobile door and the automobile door sealing and adjusting system to complete corresponding door opening and closing operations by the mechanical arm according to the using condition signals of different automobiles, controlling the air pressure regulator by the ECU to adjust the sealing pressure of the sealing rubber strip on the automobile door, and recording the corresponding automobile using condition, decibel value, capacitance value and real-time air pressure value information of the air pressure regulator by the data recorder in the test process;
s3, repeating the step S2, and repeatedly testing the information of each use working condition of the automobile until the test of the preset number of cycle working conditions is completed;
s4, obtaining the running conditions of 5 functions of vehicle door sealing regulation system and sealing rubber strip, door opening pressure release, sealing inspection, behavior learning, instantaneous induction, air charging and discharging speed, air charging and discharging noise and 3 performances of reliability by analyzing various data recorded by the data recorder.
Further, in step S2, the test procedure when the operating condition status signals are input is as follows:
the automobile working condition simulator sends driving signals to the data recorder and the ECU, and the data recorder records the driving signals transmitted by the automobile working condition simulator; the ECU controls the sealing rubber strip through the air pressure regulator to keep the high pressure of the travelling crane; transmitting the real-time air pressure value of the air pressure regulator to a data recorder for recording; the capacitance values of all parts of the capacitance sensor are transmitted to a data recorder for recording;
the automobile working condition simulator sends a door opening signal to the data recorder and the mechanical arm, the data recorder records the door opening signal of the automobile working condition simulator, the mechanical arm drives the automobile door and an automobile door sealing and adjusting system on the automobile door to execute a door opening action, the ECU senses the door opening signal through the door opening and closing sensor, the air pressure regulator is controlled to adjust the sealing air pressure of the sealing rubber strip to an intelligent pressure control value, and a decibel value of the decibel meter and a real-time air pressure value of the air pressure regulator are transmitted to the data recorder to be recorded;
the automobile working condition simulator sends a door closing starting signal for closing a door at a preset door closing speed to the data recorder and the mechanical arm, the data recorder records the door closing starting signal and the door closing speed transmitted by the automobile working condition simulator, the mechanical arm drives a door and a door sealing and adjusting system to execute door closing actions according to the door closing speed, the ECU senses the door closing speed through the speed sensor, controls the air pressure regulator to adjust the sealing air pressure of the sealing rubber strip to an instantaneous pressure value, and transmits a real-time air pressure value of the air pressure regulator to the data recorder for recording; transmitting the decibel value of the decibel meter and the capacitance values of all positions of the capacitance sensor to a data recorder for recording;
the automobile working condition simulator sends a vehicle starting signal to the data recorder and the ECU, the data recorder records the vehicle starting signal transmitted by the automobile working condition simulator, the ECU controls the air pressure regulator to pressurize the sealing air pressure of the sealing rubber strip to driving high pressure, and the real-time air pressure value of the air pressure regulator is transmitted to the data recorder for recording; and simultaneously, the data recorder records the decibel value of the decibel meter and the capacitance values of all positions of the capacitance sensor.
Further, in the closing process of the vehicle door, the rack door opening and closing sensor senses whether the vehicle door is closed or not;
if the vehicle door is not closed successfully, the rack door opening and closing sensor transmits a vehicle door unclosing signal to the vehicle working condition simulator and the data recorder, the vehicle working condition simulator performs door re-closing operation, and the data recorder records a door unclosing signal;
if the vehicle door is successfully closed, after the ECU receives a vehicle door closing signal sensed by the door opening and closing sensor, the ECU controls the air pressure regulator to regulate the sealing air pressure of the sealing rubber strip from an instantaneous pressure value to a parking middle pressure, the rack door opening and closing sensor transmits a door closing end signal to the vehicle working condition simulator, the vehicle working condition simulator outputs a vehicle using working condition signal in the next step, and the rack door opening and closing sensor transmits the door closing end signal to the data recorder for recording; and simultaneously, the data recorder records the decibel value of the decibel meter, the capacitance values of all parts of the capacitance sensor and the real-time air pressure value of the air pressure regulator.
Further, the fitting process of the corresponding functional relationship between the door closing speed and the sealing air pressure is as follows:
the automobile working condition simulator controls the mechanical arm to repeatedly close the door at a fixed door closing speed A1, and under the premise that the door can be closed, the air pressure regulator gradually increases the sealing air pressure value until the sealing air pressure B1(N +1) when the door is closed for the (N +1) th time but cannot be closed, and defines the sealing air pressure B1(N) when the door is closed for the Nth time as the sealing rubber strip sealing air pressure value corresponding to the door closing speed A1; then the automobile working condition simulator controls the mechanical arm to close the door at a fixed door closing speed A2 to obtain corresponding sealing air pressure B2(N), and a series of corresponding relations between the door closing speed A and the sealing air pressure B can be obtained by repeating the test for a plurality of times, so that abnormal data are eliminated, and a function of the speed A and the sealing air pressure B can be obtained by fitting.
Further, the process of automatically testing the minimum door closing speed of the automobile is as follows:
(1) flexibly connecting the mechanical arm with an external opening handle of the vehicle door, and arranging a rack door opening and closing sensor on a binding surface of a vehicle door buffering rubber plug and a side wall;
(2) in the closing process of the vehicle door, the vehicle working condition simulator respectively sends a door closing starting signal for closing the door at a preset door closing speed to the data recorder and the mechanical arm, the data recorder records the door closing speed signal transmitted by the vehicle working condition simulator, and the mechanical arm pushes the vehicle door to execute door closing action to a pushing front limit position at the preset door closing speed; the rack door opening and closing sensor transmits the door not-closing signal or the door-closing signal to the automobile working condition simulator and the data recorder.
Further, the predetermined door closing speed in step (2) is obtained by a binary search method.
The invention has the beneficial effects that:
the invention can record key data of the test process in the whole process through the data recorder, automatically count abnormal items and quickly find problems; when the intelligent sealing adjusting system performs air inflation and air deflation, the intelligent sealing adjusting system is assisted to adjust the air inflation and air deflation speed by testing the air inflation and air deflation noise value so as to keep the balance between the air inflation and air deflation speed and the noise; the invention can assist in testing the most reasonable sealing air pressure value of the sealing rubber strip in the preset intelligent sealing adjusting system under each working condition; the invention can automatically test the minimum door closing speed of the vehicle.
The intelligent sealing regulation system cyclically tests the driving pressurization, door opening pressure relief, sealing check, behavior learning, instantaneous sensing of 5 functions, charging and discharging speed, charging and discharging noise and reliability of the intelligent sealing regulation system by replacing the actual working condition of the automobile with the analog signal, does not need the actual operation of the automobile, does not need manpower to open and close the door, can also efficiently judge whether the door closing speed meets the design requirement, saves the test cost and improves the test efficiency.
The intelligent seal adjusting system has universality, and different programs can be edited according to different and different adjustment and test requirements of the intelligent seal adjusting system to perform different performance tests; the invention can also be used for the sealing inspection and the minimum door closing speed inspection of the intelligent sealing adjusting system in the field of after-sales maintenance.
Drawings
FIG. 1 is a schematic structural diagram of a test bed of the intelligent vehicle door seal adjustment system of the present invention;
FIG. 2 is a schematic view of a connection configuration of the test vehicle door seal adjustment system of the present invention;
FIG. 3 is a schematic structural view of a sealing rubber strip according to the present invention;
FIG. 4 is a test flow chart of the intelligent vehicle door seal adjustment system of the present invention;
FIG. 5 is a schematic view of a connection structure for presetting traveling crane high pressure and parking medium pressure in the invention;
FIG. 6 is a schematic view of a connection structure of the relationship between the preset door closing speed and the air pressure of the sealing rubber strip in the present invention;
FIG. 7 is a schematic view of a connection structure for automatically testing the minimum door closing speed of a vehicle according to the present invention.
Wherein: the system comprises an automobile working condition simulator 1, a data recorder 2, a mechanical arm 3, a decibel meter 4, a capacitance sensor 5, a door opening and closing sensor 6, an air pressure regulator 7 and an ECU 8.
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 test bench and a test method of an intelligent vehicle door sealing and adjusting system, which are mainly used for testing the intelligent vehicle door sealing and adjusting system, such as testing the vehicle door sealing and adjusting system and a sealing rubber strip of a key component of the vehicle door sealing and adjusting system.
As shown in fig. 1, the test bench comprises an automobile working condition simulator 1, a data recorder 2, a mechanical arm 3, a decibel meter 4, a capacitance sensor 5 and a bench door opening and closing sensor 6. As shown in fig. 2, the vehicle door sealing and adjusting system comprises a sealing rubber strip system, an ECU8, a door opening and closing sensor and a speed sensor, wherein the sealing rubber strip system comprises an air pressure regulator 7 and a sealing rubber strip, the ECU8 is connected with the sealing rubber strip through the air pressure regulator 7, the door opening and closing sensor and the speed sensor are respectively connected with the ECU8, the door opening and closing sensor is used for sensing opening and closing signals of a vehicle door, and the speed sensor is used for sensing opening and closing speed of the vehicle door.
As shown in fig. 2, the automobile condition simulator 1 transmits preset automobile use condition information to the data recorder 2, the mechanical arm 3 and the ECU8 respectively, and the automobile condition simulator 1, the data recorder 2, the mechanical arm 3 and the ECU8 are all in one-way data transmission.
The automobile working condition simulator 1 transmits automobile use working condition information such as automobile driving state, automobile door opening, automobile door closing process, automobile door closing, automobile starting (the automobile starting comprises the process of switching automobile door closing to driving state and the driving state) and the like to the data recorder 2, and the data recorder 2 receives and records the information in real time.
The mechanical arm 3 is further connected with the vehicle door, the vehicle working condition simulator 1 transmits signals for opening and closing the door to the mechanical arm 3 according to a certain time interval and sequence, the signals comprise the contents of the opening degree, the closing speed and the like, and the mechanical arm 3 drives the vehicle door and a vehicle door sealing adjusting system on the vehicle door to execute door opening and closing operations according to the received opening and closing signals at different opening degrees and different speeds.
The automobile working condition simulator 1 transmits the driving state and the automobile starting use working condition information to the ECU8 according to a certain time interval and sequence, and the ECU8 adjusts the sealing air pressure of the sealing rubber strip through the air pressure regulator 7 according to the automobile use working condition information. The air pressure regulator 7 and the data recorder 2 are in one-way data transmission, the air pressure regulator 7 transmits the real-time air pressure regulated by the sealing rubber strip to the data recorder 2, and the data recorder 2 instantly receives and records the change information of the real-time air pressure value.
The capacitance sensor 5 is arranged on the surface of a sealing rubber strip of the vehicle door sealing and adjusting system (shown in figure 3) and used for detecting capacitance values between the sealing rubber strip and the sheet metal part and transmitting the capacitance values to the data recorder 2 in a one-way mode, so that the sealing performance of the sealing rubber strip is obtained, and the data recorder 2 records the capacitance values.
The rack door opening and closing sensor 6 is arranged on a contact surface of a vehicle door buffering rubber plug and a side wall and used for testing the result of the mechanical arm 3 executing the door closing action at each time and respectively transmitting the door closing result to the vehicle working condition simulator 1 and the data recorder 2 in a one-way mode, the vehicle working condition simulator 1 makes a next door closing instruction according to the closing condition of a vehicle door, and the data recorder 2 records the door closing instruction.
Therefore, the data recorder 2 collects the key data of the test, such as the test time, the working condition of the automobile, the sealing performance, the noise decibel value and other information. In addition, the data recorder 2 can also transmit the recorded data information to a computer, and the recorded data information is checked, counted, analyzed and the like through the computer.
The test bench is used for carrying out circulating test on the vehicle door sealing adjusting system, and different test programs can be edited in the vehicle working condition simulator 1 according to the difference of the vehicle door sealing adjusting system and the difference of the adjustment and test requirements.
The performance of the sealing rubber strip of the vehicle door sealing and adjusting system under different working conditions is tested by using the cycle test method, as shown in fig. 2 and 4, the process is as follows:
1. connecting the vehicle door sealing and adjusting system to a test bench;
the method comprises the following steps of connecting an automobile working condition simulator 1 with an ECU8 of a vehicle door sealing and adjusting system, connecting a data recorder 2 with an air pressure regulator 7, connecting a mechanical arm 3 with a vehicle door, arranging a decibel meter 4 at one side of the vehicle door sealing and adjusting system, densely distributing a plurality of capacitance patches of a capacitance sensor 5 on detection points of sealing rubber strips on the vehicle door, and arranging a rack door opening and closing sensor 6 on a contact surface of a vehicle door buffer rubber plug and a side wall;
2. the automobile working condition simulator 1 inputs signals of all working conditions used by an automobile, according to the signals of different automobile working conditions used, the mechanical arm 3 drives an automobile door and an automobile door sealing and adjusting system to complete corresponding door opening and closing operations, the ECU8 controls the air pressure regulator 7 to adjust the sealing pressure of a sealing rubber strip on the automobile door, and the data recorder 2 records information such as corresponding automobile working conditions, decibel values, capacitance values, real-time air pressure values of the air pressure regulator 7 and the like in the test process;
the test process when the state signals of all the working conditions are input is as follows:
the automobile working condition simulator 1 sends driving signals to the data recorder 2 and the ECU8, and the data recorder 2 records the driving signals transmitted by the automobile working condition simulator 1; a driving high pressure value is preset in the ECU8, and the ECU8 controls the sealing rubber strip through the air pressure regulator 7 to keep driving high pressure; the real-time air pressure value of the air pressure regulator 7 is transmitted to the data recorder 2 for recording; the capacitance values of all parts of the capacitance sensor 5 are transmitted to the data recorder 2 for recording;
the automobile working condition simulator 1 sends a door opening signal to the data recorder 2 and the mechanical arm 3, the data recorder 2 records the door opening signal of the automobile working condition simulator 1, the mechanical arm 3 drives the automobile door and an automobile door sealing and adjusting system on the automobile door to execute door opening action, the ECU8 senses the door opening signal through a door opening and closing sensor of the automobile door adjusting system, the air pressure regulator 7 is controlled to adjust the sealing air pressure of the sealing rubber strip to an intelligent pressure control value preset by the ECU8, and the decibel value of the decibel meter 4 and the real-time air pressure value of the air pressure regulator 7 are transmitted to the data recorder 2 to be recorded;
the automobile working condition simulator 1 sends a door closing starting signal for closing a door at a preset door closing speed to the data recorder 2 and the mechanical arm 3, the data recorder 2 records the door closing starting signal and the door closing speed transmitted by the automobile working condition simulator 1, the mechanical arm 3 drives a door and a door sealing and adjusting system to execute door closing actions according to the door closing speed, the ECU8 senses the door closing speed through a speed sensor, controls the air pressure regulator 7 to regulate the sealing air pressure of a sealing rubber strip to an instant pressure value (which can be instant high pressure and instant low pressure) preset in the ECU8, and transmits the real-time air pressure value of the air pressure regulator 7 to the data recorder 2 for recording; the decibel value of the decibel meter 4 and the capacitance values of the capacitance sensor 5 are transmitted to the data recorder 2 for recording.
If the vehicle door is not closed successfully, the rack door opening and closing sensor 6 transmits a vehicle door unclosing signal to the vehicle working condition simulator 1 and the data recorder 2, the vehicle working condition simulator 1 performs door re-closing operation, and the data recorder 2 records a door unclosing signal.
If the vehicle door is successfully closed, after the ECU8 receives a vehicle door closing signal induced by a door opening and closing sensor of a vehicle door sealing and adjusting system, the ECU8 controls the air pressure regulator 7 to adjust the sealing air pressure of the sealing rubber strip from an instantaneous pressure value to a preset parking medium pressure in the ECU8, the rack door opening and closing sensor 6 transmits a door closing end signal to the vehicle working condition simulator 1, the vehicle working condition simulator 1 outputs a vehicle use working condition signal of the next step, and the rack door opening and closing sensor 6 transmits the door closing end signal to the data recorder 2 for recording; meanwhile, the data recorder 2 records the decibel value of the decibel meter 4, the capacitance values of all positions of the capacitance sensor 5 and the real-time air pressure value of the air pressure regulator 7;
the automobile working condition simulator 1 sends a vehicle starting signal to the data recorder 2 and the ECU8, the data recorder 2 records the vehicle starting signal transmitted by the automobile working condition simulator 1, the ECU8 controls the air pressure regulator 7 to pressurize the sealing air pressure of the sealing rubber strip to the driving high pressure preset in the ECU8, and the real-time air pressure value of the air pressure regulator 7 is transmitted to the data recorder 2 to be recorded; and simultaneously, the data recorder 2 records the decibel value of the decibel meter 4 and the capacitance values of all places of the capacitance sensor 5.
3. And (3) repeating the step (2), and repeatedly testing the information of each use working condition of the automobile until the test of the preset number of cycle working conditions is completed, wherein the difference is that the door closing is a random value in a certain speed interval each time.
4. Through analyzing various data recorded by the data recorder 2, the running conditions of 5 functions of vehicle door sealing regulation system and sealing rubber strip, such as vehicle pressurization, door opening pressure release, sealing inspection, behavior learning, instantaneous induction, charging and discharging speed, charging and discharging noise and 3 reliability performances are obtained.
The specific analysis method for the data is as follows:
driving and pressurizing: and the data recorder 2 counts whether the real-time air pressure value of the air pressure regulator 7 is equal to a preset driving high-pressure value under the driving working condition, if so, the test is qualified, and if not, the test is unqualified.
Opening a door to release pressure: and the data recorder 2 counts whether the real-time air pressure value of the air pressure regulator 7 is equal to a preset intelligent pressure control value or not when the vehicle door is opened, if the real-time air pressure value after the vehicle door is opened is equal to the preset intelligent pressure control value, the test is qualified, and if not, the test is unqualified.
And (4) sealing inspection: the data recorder 2 counts whether the capacitance values of all the positions of the sealing rubber strips reach expected values under the working conditions of closing the vehicle door and driving, if the capacitance values reach the expected values, the test is qualified, otherwise, the test is unqualified; therefore, the sealing performance of the sealing rubber strip of the key sealing part in the vehicle door sealing and adjusting system can be tested.
Instantaneous induction and behavior learning: the data recorder 2 counts whether the real-time air pressure value of the air pressure regulator 7 at the moment of closing the vehicle door is equal to a preset instantaneous pressure value or not, if the real-time air pressure value is equal to the preset instantaneous pressure value, the test is qualified, otherwise, the test is unqualified. The preset instantaneous pressure value is the instantaneous pressure control value corresponding to the average speed of the previous ten door closing speeds automatically calculated by the data recorder 2.
Reliability: counting the number of cycle conditions with abnormal data in a preset number (such as 1000) of cycle conditions in the data recorder 2, namely calculating to obtain the reliability, wherein the calculation formula is as follows: and the reliability is 1- (the number of abnormal data cycle conditions/1000).
Inflation and deflation speed: the data recorder 2 counts whether the sealing air pressure change between the working conditions is completed in advance. Such as: when the door is opened, the air pressure regulator 7 adjusts the sealing air pressure immediately at the moment of opening the door, and the sealing air pressure reaches an intelligent pressure control value before the door is closed; when the door closing action is performed, the air pressure regulator 7 determines whether the sealing air pressure reaches an instantaneous pressure value before the door closing is completed.
Air inflation and air deflation noise: the air inflation and deflation speed of the sealing rubber strip is in direct proportion to the generated noise, the noise condition in the air inflation and deflation process is counted, whether the noise is too high frequently occurs or not is judged, and the balance between the air inflation and deflation speed and the noise can be adjusted by the vehicle door sealing adjusting system.
As shown in fig. 5, the driving high pressure value and the parking medium pressure value are obtained by repeated tests, and the test process is as follows:
driving high pressure value: paste capacitive sensor 5 on joint strip, close the door, progressively increase the sealing pressure value through air pressure regulator 7, when the capacitance value reaches certain preset numerical value (preset numerical value can obtain through the conversion, if need driving a vehicle high pressure state joint strip laminating area than traditional joint strip increase N% (like 50%), then corresponding capacitance value increases to traditional joint strip laminating capacitance value N% (like 50%)), set up the sealing pressure value at this moment as driving a vehicle high pressure value.
Parking medium pressure value: paste capacitive sensor 5 on joint strip, close the door, air pressure regulator 7 progressively increases joint strip's sealing pressure, reaches certain preset numerical value (preset numerical value is the traditional adhesive tape laminating capacitance value that the test obtained), sets up the sealing pressure value this moment into and parks the middling pressure value.
As shown in fig. 6, the test bed can close the door at a certain stable speed, the sealing air pressure value of the door sealing adjustment system is adjusted for each door closing speed, and the corresponding functional relationship between the door closing speed and the sealing air pressure can be obtained through multiple tests in a fitting manner, so that the sealing air pressure corresponding to any door closing speed in a reasonable interval can be obtained, the door closing comfort is improved, and the adverse effect of violent door closing is avoided. The test process comprises the following steps:
the automobile working condition simulator 1 controls the mechanical arm 3 to repeatedly close the door at a fixed door closing speed A1, the rack door opening and closing sensor 6 feeds the door closing result back to the automobile working condition simulator 1 and the data recorder 2 respectively, and the data recorder 2 records the door closing speed of the door closing operation at each time, the real-time air pressure value of the air pressure regulator 7 and the door closing result fed back by the rack door opening and closing sensor 6. On the premise that the door can be closed, the air pressure regulator 7 gradually increases the sealing air pressure value until the sealing air pressure B1(N +1) when the door is closed for the (N +1) th time but cannot be closed, and defines the sealing air pressure B1(N) corresponding to the door closing speed A1 when the door is closed for the (N) th time as the sealing air pressure value of the sealing rubber strip corresponding to the door closing speed A1; then the automobile working condition simulator 1 controls the mechanical arm 3 to close the door at a fixed door closing speed A2 to obtain corresponding sealing air pressure B2(N), and repeated tests can obtain a series of corresponding relations between the door closing speed A and the sealing air pressure B, eliminate abnormal data, fit to obtain a function of the speed A and the sealing air pressure B, and ensure that the door can be normally closed at any door closing speed within a reasonable interval;
as shown in fig. 7, the rack can automatically test the minimum door closing speed of the car, and the process is as follows:
1. flexibly connecting the mechanical arm 3 with an external opening handle of the vehicle door, and arranging a rack door opening and closing sensor 6 on a binding surface of a vehicle door buffering rubber plug and a side wall;
2. in the closing process of the vehicle door, the vehicle working condition simulator 1 respectively sends a door closing starting signal for closing the door at a preset door closing speed to the data recorder 2 and the mechanical arm 3, the data recorder 2 records the door closing speed signal transmitted by the vehicle working condition simulator 1, and the mechanical arm 3 pushes the vehicle door to execute a door closing action at the preset door closing speed; when the vehicle door is closed to a pushing front limit position (a position with a preset distance of 5cm before the position where the vehicle door is to be closed is taken as a pushing front limit position of the mechanical arm 3), the mechanical arm 3 stops running, and the vehicle door runs by means of self inertia; the rack door opening and closing sensor 6 transmits a door unclosing signal or a door closed signal to the automobile working condition simulator 1 and the data recorder 2; in the process of opening the vehicle door, the mechanical arm 3 pulls the vehicle door open through the traction rope;
the preset door closing speed can be obtained by a binary search method, and the process is as follows: the automobile working condition simulator 1 controls the mechanical arm 3 to enable the door to be closed at the door closing speed of 2m/S, if the door can be closed (2m/S can be closed basically), the next door closing speed is 1m/S, and if the door can be closed, the next door closing speed is 0.5 m/S; if the door cannot be closed, the next door closing speed is 1.5m/S, namely the next door closing speed is in the middle value of the interval with the lowest door closing speed until the door closing speed interval converges to the range less than 0.1, the highest value of the door closing speed interval is taken as the door closing speed of the door tested at this time, the process is repeated for N times, and the average value of the N times is taken as the door closing speed of the door;
the test bench and the test method are also suitable for other intelligent sealing rubber strip systems except for the vehicle door sealing regulation system, and other adjustment test processes can be derived according to the test of different intelligent sealing rubber strip systems in the test process.
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 (10)
1. A test bench of an intelligent vehicle door sealing adjusting system is characterized in that the test bench comprises an automobile working condition simulator (1), a data recorder (2) and a mechanical arm (3); the vehicle door sealing and adjusting system comprises an air pressure regulator (7), an ECU (8) and a sealing rubber strip;
the automobile working condition simulator (1) transmits preset automobile use working condition information to the data recorder (2), the mechanical arm (3) and the ECU (8) respectively;
the mechanical arm (3) drives the vehicle door and the vehicle door sealing and adjusting system to execute door opening and closing operations according to the received door opening and closing signals; the ECU (8) controls the air pressure regulator (7) to regulate the sealing air pressure of the sealing rubber strip according to the using condition information of the automobile; the air pressure regulator (7) transmits the real-time air pressure to the data recorder (2);
and the data recorder (2) records the automobile use condition information and the real-time air pressure of the air pressure regulator (7).
2. The test bench of an intelligent vehicle door seal adjustment system according to claim 1, further comprising a decibel meter (4), wherein the decibel meter (4) measures the decibel value of the noise during the inflation and deflation phase of the joint strip and sends the decibel value to the data recorder (2).
3. Test bench for intelligent vehicle door seal adjustment systems according to claim 1 or 2, characterized in that it further comprises a capacitive sensor (5), said capacitive sensor (5) detecting the capacitance between the bead and the sheet metal part and transmitting the capacitance to the data logger (2).
4. The test bench of an intelligent vehicle door sealing adjustment system according to claim 3, further comprising a bench door opening and closing sensor (6) for testing the result of each door closing action performed by the mechanical arm (3) and transmitting the door closing result to the vehicle condition simulator (1) and the data recorder (2) in a single direction, wherein the vehicle condition simulator (1) orders the next door closing instruction according to the closing condition of the vehicle door, and the data recorder (2) records the door closing instruction.
5. A test method of an intelligent vehicle door sealing adjustment system is characterized by comprising the following steps:
s1, connecting the vehicle door sealing and adjusting system to a test bench;
the method comprises the following steps of connecting an automobile working condition simulator (1) with an ECU (8) of a vehicle door sealing and adjusting system, connecting a data recorder (2) with an air pressure regulator (7), connecting a mechanical arm (3) with a vehicle door, arranging a decibel meter (4) at one side of the vehicle door sealing and adjusting system, densely distributing a plurality of capacitance patches of a capacitance sensor (5) on detection points of a sealing rubber strip on the vehicle door, and arranging a rack door opening and closing sensor (6) on a contact surface of a vehicle door buffer rubber plug and a side wall;
s2, inputting various using working condition signals of the automobile through the automobile working condition simulator (1), driving the automobile door and the automobile door sealing and adjusting system to complete corresponding door opening and closing operations according to the using working condition signals of different automobiles, controlling the air pressure regulator (7) by the ECU (8) to adjust the sealing pressure of the sealing rubber strip on the automobile door, and recording the corresponding automobile using working condition, decibel value, capacitance value and real-time air pressure value information of the air pressure regulator (7) by the data recorder (2) in the testing process;
s3, repeating the step S2, and repeatedly testing the information of each use working condition of the automobile until the test of the preset number of cycle working conditions is completed;
s4, analyzing all data recorded by the data recorder (2) to obtain the running conditions of 5 functions of vehicle door sealing regulation system and sealing rubber strip, door opening pressure release, sealing inspection, behavior learning, instantaneous induction, air inflation and deflation speed, air inflation and deflation noise and 3 reliability performances.
6. The method for testing an intelligent vehicle door sealing adjustment system according to claim 5, wherein in step S2, the test procedure when the condition signals are input is as follows:
the automobile working condition simulator (1) sends driving signals to the data recorder (2) and the ECU (8), and the data recorder (2) records the driving signals transmitted by the automobile working condition simulator (1); the ECU (8) controls the sealing rubber strip through the air pressure regulator (7) to keep the high pressure of the travelling crane; the real-time air pressure value of the air pressure regulator (7) is transmitted to the data recorder (2) for recording; the capacitance values of all parts of the capacitance sensor (5) are transmitted to the data recorder (2) for recording;
the automobile working condition simulator (1) sends a door opening signal to the data recorder (2) and the mechanical arm (3), the data recorder (2) records the door opening signal of the automobile working condition simulator (1), the mechanical arm (3) drives an automobile door and an automobile door sealing and adjusting system on the automobile door to execute door opening action, the ECU (8) senses the door opening signal through a door opening and closing sensor, the air pressure regulator (7) is controlled to adjust the sealing air pressure of the sealing rubber strip to an intelligent pressure control value, and the decibel value of the decibel meter (4) and the real-time air pressure value of the air pressure regulator (7) are transmitted to the data recorder (2) for recording;
the automobile working condition simulator (1) sends a door closing starting signal for closing a door at a preset door closing speed to the data recorder (2) and the mechanical arm (3), the data recorder (2) records the door closing starting signal and the door closing speed transmitted by the automobile working condition simulator (1), the mechanical arm (3) drives a door and a door sealing and adjusting system to execute door closing actions according to the door closing speed, the ECU (8) senses the door closing speed through the speed sensor, controls the air pressure regulator (7) to adjust the sealing air pressure of the sealing rubber strip to an instant pressure value, and transmits the real-time air pressure value of the air pressure regulator (7) to the data recorder (2) for recording; the decibel value of the decibel meter (4) and the capacitance values of all positions of the capacitance sensor (5) are transmitted to the data recorder (2) for recording;
the automobile working condition simulator (1) sends a vehicle starting signal to the data recorder (2) and the ECU (8), the data recorder (2) records the vehicle starting signal transmitted by the automobile working condition simulator (1), the ECU (8) controls the air pressure regulator (7) to pressurize the sealing air pressure of the sealing rubber strip to the driving high pressure, and the real-time air pressure value of the air pressure regulator (7) is transmitted to the data recorder (2) for recording; and simultaneously, the data recorder (2) records the decibel value of the decibel meter (4) and the capacitance values of all places of the capacitance sensor (5).
7. The test method of the intelligent vehicle door sealing adjustment system according to claim 6, characterized in that during the closing process of the vehicle door, the rack door opening and closing sensor (6) senses whether the vehicle door is closed or not;
if the vehicle door is not closed successfully, the rack door opening and closing sensor (6) transmits a vehicle door non-closing signal to the vehicle working condition simulator (1) and the data recorder (2), the vehicle working condition simulator (1) performs door re-closing operation, and the data recorder (2) records a door non-closing signal;
if the vehicle door is successfully closed, after the ECU (8) receives a vehicle door closing signal sensed by a door opening and closing sensor, the ECU (8) controls the air pressure regulator (7) to regulate the sealing air pressure of the sealing rubber strip from an instantaneous pressure value to a parking middle pressure, the rack door opening and closing sensor (6) transmits a door closing end signal to the vehicle working condition simulator (1), the vehicle working condition simulator (1) outputs a vehicle use working condition signal of the next step, and the rack door opening and closing sensor (6) transmits the door closing end signal to the data recorder (2) for recording; and simultaneously, the data recorder (2) records the decibel value of the decibel meter (4), the capacitance values of all positions of the capacitance sensor (5) and the real-time air pressure value of the air pressure regulator (7).
8. The method for testing an intelligent vehicle door sealing adjustment system according to claim 5, wherein the fitting process of the corresponding functional relationship between the door closing speed and the sealing air pressure is as follows:
the automobile working condition simulator (1) controls the mechanical arm (3) to repeatedly close the door at a fixed door closing speed A1, and under the premise that the door can be closed, the air pressure regulator (7) gradually increases the sealing air pressure value until the sealing air pressure B1(N +1) when the door is closed for the (N +1) th time but cannot be closed, and defines the sealing air pressure B1(N) when the door is closed for the Nth time as the sealing rubber strip sealing air pressure value corresponding to the door closing speed A1; then the automobile working condition simulator (1) controls the mechanical arm (3) to close the door at a fixed door closing speed A2 to obtain corresponding sealing air pressure B2(N), and a series of corresponding relations between the door closing speed A and the sealing air pressure B can be obtained by repeating a plurality of tests, so that abnormal data are eliminated, and a function of the speed A and the sealing air pressure B can be obtained by fitting.
9. The method for testing an intelligent vehicle door sealing adjustment system according to claim 5, wherein the process for automatically testing the minimum door closing speed of the vehicle is as follows:
(1) flexibly connecting the mechanical arm (3) with an external opening handle of the vehicle door, and arranging a rack door opening and closing sensor (6) on a binding surface of a vehicle door buffering rubber plug and a side wall;
(2) in the closing process of the vehicle door, the vehicle working condition simulator (1) respectively sends a door closing starting signal for closing the door at a preset door closing speed to the data recorder (2) and the mechanical arm (3), the data recorder (2) records the door closing speed signal transmitted by the vehicle working condition simulator (1), and the mechanical arm (3) pushes the vehicle door to execute door closing action to a pushing front limit position at the preset door closing speed; the rack door opening and closing sensor (6) transmits a door non-closing signal or a door closing signal to the automobile working condition simulator (1) and the data recorder (2).
10. The method for testing an intelligent vehicle door sealing adjustment system according to claim 9, wherein the predetermined door closing speed in step (2) is obtained by a binary search method.
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| CN113074951B (en) * | 2021-03-03 | 2023-05-16 | 东风汽车集团股份有限公司 | Vehicle door minimum closing speed test device and test method |
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