A method for testing the closing force of a door window at high speed

Abstract

The application discloses a high-speed driving door glass closing force test method, belongs to the technical field of door glass testing, and checks whether the installation state of the outer-mounted part of the test vehicle is normal, cleans the whole vehicle, sends the test vehicle to a wind tunnel, fixes the test vehicle on a rotating platform, increases the vehicle speed to a first target vehicle speed, increases the wind speed, rotates the rotating platform, and makes the whole vehicle receive lateral wind; after reaching a second target vehicle speed, opens the door glass from a fully closed state to a half-open state, closes the door glass from the half-open position, checks whether there is any obstacle to closing, measures the bulging amount and the concave amount of the door glass, draws a diagram for evaluation, and increases the wind speed if there is no obstacle; the measurement method provides effective working conditions for evaluating the degree of difficulty in closing the door glass during high-speed driving.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle door glass, in particular to a test method for the closing force of vehicle door glass under high-speed driving. BACKGROUND

[0002] During high-speed driving, the wind pressure will hinder the opening and closing of the vehicle window. Therefore, during the development of the vehicle, the influence of the wind pressure on the vehicle during high-speed driving needs to be simulated to evaluate the difficulty of opening and closing the vehicle window. There is no similar test method disclosed at present. SUMMARY

[0003] In view of the above problems, the present application provides a test method for the closing force of vehicle door glass under high-speed driving. The installation state of the test vehicle exterior components is checked to see if it is normal, the vehicle is cleaned as a whole, the test vehicle is sent to the wind tunnel, the test vehicle is fixed on the rotating platform, the vehicle speed reaches the first target speed, the wind speed is increased, the rotating platform is rotated to make the whole vehicle receive lateral wind, the door glass is opened from the fully closed state to the half-open state, the door glass is closed from the half-open position, and it is checked whether there is any obstacle to closing. If there is any obstacle to closing, the amount of bulging and concave of the window glass is measured and evaluated by drawing a graph. If there is no obstacle, the wind speed is increased. The measurement method of the present application provides effective working conditions for evaluating the difficulty of closing the door glass during high-speed driving.

[0004] The technical scheme of the present application is as follows. A test method for the closing force of vehicle door glass under high-speed driving includes the following steps:

[0005] S1 check the installation state of the test vehicle exterior components to see if it is normal, clean the vehicle as a whole, send the test vehicle to the wind tunnel, and fix the test vehicle on the rotating platform;

[0006] S2 start the car to reach the target speed and open the wind tunnel;

[0007] S3 rotate the rotating platform to form a residual angle to make the whole vehicle receive lateral wind;

[0008] S4 after reaching the target speed, open the door glass from the fully closed state to the half-open state;

[0009] S5 close the door glass from the half-open position and check whether there is any obstacle to closing,

[0010] If there is any obstacle to closing, the amount of bulging and concave of the door glass is measured at step S4;

[0011] If there is no obstacle to closing, the wind speed of step S2 is increased;

[0012] S6 make a graph of the relationship between the test results and the amount of bulging and concave, and evaluate it.

[0013] Further, in step S3, the included angle is 30-60 degrees, and the included angle is 45 degrees.

[0014] Further, in step S3, the lateral wind speed is 0-20 km / h.

[0015] Further, in step S5, when measuring the bulging amount of the door glass, the door glass is lowered to a position 2.0 mm below the glass guide groove.

[0016] Further, in step S5, when measuring the bulging amount of the door glass, in the full-closed state of the door glass, the door glass is lowered by 10 mm, and the center position of the door glass and a position 100 mm away from the upper corner of the door glass frame are measured.

[0017] Further, in step S5, when measuring the concave amount of the door glass, the front end of the door glass is lowered to a position away from the water guide groove, and the measurement is performed at the front upper end of the door glass.

[0018] Further, when measuring the bulging amount and the concave amount of the door glass, a reference point is set at the vertex of the joint of the flange of the cab and the edge, and the measurement is performed based on the reference point.

[0019] The present application has the following beneficial effects:

[0020] The measurement method of the present application provides an effective working condition for evaluating the ease of closing the door glass during high-speed driving. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the vehicle speed and the bulging amount and the concave amount of the present application.

[0022] Figure 2 The figure is a schematic diagram of the vehicle window.

[0023] In the figure:

[0024] 1 door glass frame, 2 water guide groove, 3 nominal entry amount, 4 concave amount, 5 door glass, 6 bulging amount, 7 glass guide groove. DETAILED DESCRIPTION

[0025] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0026] In the present application, unless specifically defined otherwise or limited by context, the terms "setting", "mounting", "connecting", "connecting" and the like should be interpreted broadly, for example, "fixed" can be fixed connection, or detachable connection, or integral; connection can be mechanical connection, or electrical connection; connected can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Test preparation

[0028] Check whether the installation state of the outer part of the test vehicle is normal;

[0029] Clean the vehicle as a whole, especially the water cutting part;

[0030] Send the test vehicle to the wind tunnel;

[0031] Fix the test vehicle on the rotating platform;

[0032] Prepare a 15cm iron ruler or vernier caliper.

[0033] Test procedure

[0034] The vehicle speed changes from 80km / h to 120km / h, reaches the target speed, and increases the wind speed;

[0035] At this time, rotate the rotating platform to form the residual angle so as to be subjected to the lateral wind equivalent to 10m / s;

[0036] Send the air blower to the FRESH (fresh air) position;

[0037] After reaching the target speed, open the door glass 5 from the fully closed state;

[0038] Close the door glass 5 from the half-open position and check whether there is any obstacle to closing. If there is an obstacle to closing, proceed in the following order;

[0039] Measure the amount of suction (bulge 6) and the amount of compression (indentation 4) of the door glass 5 with an iron ruler or caliper;

[0040] When measuring the amount of suction (bulge 6), install the glass guide 7 to lower the door glass 5 to a position 2.0mm below the glass guide 7, and without installing the glass guide 7, lower 10mm in the fully closed state;

[0041] When measuring the amount of compression (indentation 4), lower the front end of the door glass 5 to a position away from the water guide 2;

[0042] The measurement position of the sucked-in amount (bulging amount 6) is two positions, a center position of the door glass 5 including the glass guide 7 and a position 100 mm from the upper corner of the door glass frame 1.

[0043] The measurement of the pressed-in amount (recessed amount 4) is performed at the front upper end of the door glass 5.

[0044] 3. Measurement items / measurement essentials

[0045] Measurement items

[0046] Whether the door glass 5 is completely closed;

[0047] The sucked-in amount (bulging amount 6) and the pressed-in amount (recessed amount 4) of the door glass 5 when the defect occurs.

[0048] Measurement essentials

[0049] When checking whether the door glass 5 is completely closed, the door glass 5 is lowered by a part from the half-open state and then completely closed;

[0050] When measuring the sucked-in amount (bulging amount 6) and the pressed-in amount (recessed amount 4), a reference point is set at the vertex of the joint bead of the cab flange (flange) as a reference, and the measurement is performed using a caliper or a steel tape.

[0051] Data processing method

[0052] The test result of whether the complete closing of the door glass 5 is hindered is recorded.

[0053] When measuring the sucked-in amount (bulging amount 6) and the pressed-in amount (recessed amount 4), a graph as shown in FIG. 2 is prepared. Figure 1

[0054] Evaluation criteria

[0055]

[0056] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any modification, equivalent replacement and improvement within the technical range disclosed by the present application and within the spirit and principle of the present application should be included in the protection scope of the present application. Meanwhile, the contents not described in detail in the specification are all the prior art known to those skilled in the art.

[0057] ​It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to be used to limit the scope of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which this application belongs. The singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise.

Claims

1. A method of testing the closing force of a door window glass at high speed, characterized by, The method comprises the following steps: S1 checking the installation state of the test vehicle's exterior parts, cleaning the vehicle, sending the test vehicle to the wind tunnel, and fixing the test vehicle on the rotating platform; S2 starting the vehicle to reach the target speed and opening the wind tunnel; S3 rotating the rotating platform to form a residual angle to make the vehicle receive lateral wind; S4 reaching the target speed and opening the door glass from full close to half open; S5 closing the door glass from the half open position and checking whether there is any obstacle to closing, If there is any obstacle to closing, the door glass bulge and recess are measured at step S5; If there is no obstacle to closing, the wind speed at step S2 is increased; S6 making a graph of the relationship between the vehicle speed and the bulge and recess and evaluating the test results.

2. A method of testing the closing force of a door window glass according to claim 1, wherein In step S3, the residual angle is 30-60 degrees.

3. A method of testing the closing force of a door window glass according to claim 2, wherein In step S3, the residual angle is 45 degrees.

4. A method of testing the closing force of a door window glass according to claim 1, wherein In step S3, the lateral wind speed is 0-20 km / h.

5. The method of claim 1, wherein In step S5, when measuring the door glass bulge, the door glass is lowered to 2.0 mm below the glass guide slot for the vehicle with the glass guide slot.

6. A method of testing the closing force of a door window glass according to claim 1, wherein In step S5, when measuring the door glass bulge, the door glass is lowered by 10 mm in the full close state for the vehicle without the glass guide slot, and the center position of the door glass and the position 100 mm away from the upper corner of the door glass frame are measured.

7. A method of testing the closing force of a door window glass according to claim 1, wherein In step S5, when measuring the door glass recess, the front end of the door glass is lowered to a position away from the water guide slot, and the measurement is made at the front upper end of the door glass.

8. A method of testing the closing force of a door window glass according to claim 1, wherein When measuring the door glass bulge and recess, a reference point is set at the top of the joint of the flange of the cab and the flange, which is used as the reference for the measurement.

Images