Vehicle door glass closing force test method under high-speed driving

Abstract

The invention discloses a method for testing closing force of vehicle door glass under high-speed driving, which belongs to the technical field of vehicle door glass testing, and comprises the following steps of: checking whether the installation state of external parts of a test vehicle is normal or not, cleaning the whole vehicle, sending the test vehicle to a wind tunnel, fixing the test vehicle on a turning table, enabling the vehicle speed to reach a first target vehicle speed, and increasing the wind speed; rotating the vehicle rotating platform to enable the whole vehicle to be subjected to lateral wind, and after a second target vehicle speed is reached, opening the vehicle window glass from a fully-closed state to a semi-open state, closing the vehicle window glass from a semi-open position, checking whether anti-blocking closing exists or not, if the anti-blocking closing exists, measuring the bulging amount and the recessing amount of the window glass, performing drawing evaluation, and if the anti-blocking closing does not exist, increasing the wind speed; the measuring method provides an effective working condition for evaluating the vehicle window closing difficulty degree in high-speed driving.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle door glass, in particular to a method for testing the closing force of vehicle door glass under high-speed driving. Background Art

[0002] When a vehicle is driving at high speed, the suction and pressure of wind pressure will hinder the opening and closing of the windows. Therefore, during the vehicle development stage, it is necessary to simulate the impact of wind pressure on the vehicle during high-speed driving to evaluate the difficulty of opening and closing the windows. Currently, there is no public similar test method. Summary of the invention

[0003] In view of the above problems, the present invention provides a method for testing the closing force of a vehicle door glass under high-speed driving, which checks whether the installation status of the exterior components of the test vehicle is normal, cleans the entire vehicle, sends the test vehicle to a wind tunnel, fixes the test vehicle on a turntable, increases the vehicle speed to a first target speed, increases the wind speed, rotates the turntable to expose the entire vehicle to lateral wind, and after reaching a second target speed, opens the vehicle door glass from a fully closed state to a half-open state, closes the vehicle door glass from the half-open position, and checks whether there is any hindrance to closing. If there is any hindrance to closing, measures the bulging and recessing amounts of the window glass, draws a graph for evaluation, and increases the wind speed if there is no hindrance. The measurement method of the present invention provides an effective working condition for evaluating the difficulty of closing the vehicle door glass during high-speed driving.

[0004] The technical solution of the present invention is as follows: a method for testing the closing force of a door glass under high-speed driving, comprising the following steps:

[0005] S1 Check whether the installation status of the test vehicle's exterior parts is normal, clean the vehicle as a whole, send the test vehicle to the wind tunnel, and fix the test vehicle on the turntable;

[0006] S2 starts the car to reach the target speed and opens the wind tunnel;

[0007] S3 rotates the turntable to form a complementary angle so that the whole vehicle is exposed to side wind;

[0008] After S4 reaches the target speed, the door glass is opened from fully closed to half open;

[0009] S5 Close the door glass from the half-open position to check if there is any obstacle to closing.

[0010] If there is an obstacle to closing, then in step S4, the bulging amount and the recessing amount of the door glass are measured;

[0011] If there is no hindrance to closing, increase the wind speed in step S2;

[0012] S6 evaluates the test results by making a graph showing the relationship between vehicle speed, bulge and recess.

[0013] Furthermore, in step S2, the target vehicle speed is 10-30 km / h, and the target vehicle speed is 20 km / h.

[0014] Further, in step S3, the complementary angle is 30-60 degrees, and the complementary angle is 45 degrees.

[0015] Furthermore, in step S3, the crosswind speed is 0-20 km / h.

[0016] Furthermore, in step S5, when measuring the bulging amount of the door glass, if a glass run channel is installed, the door glass is lowered to a position 2.0 mm below the glass run channel.

[0017] Furthermore, in step S5, when measuring the bulging amount of the door glass, if a glass guide groove is not installed, the door glass is lowered 10 mm when the door glass is fully closed, 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.

[0018] Furthermore, in step S5, when measuring the indentation amount of the door glass, the front end of the door glass is lowered to a position away from the water flow guide groove, and the measurement is performed at the front upper end of the door glass.

[0019] Furthermore, when testing the bulging and recessing of the door glass, a reference point is set at the top of the joint trim of the cab flange and used as a reference for measurement.

[0020] The beneficial effects of the present invention are:

[0021] The measuring method of the present invention provides an effective working condition for evaluating the degree of difficulty of closing the door glass during high-speed driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of vehicle speed, bulging amount and recessing amount according to the present invention.

[0023] Figure 2 Schematic diagram of the car window.

[0024] In the figure:

[0025] 1. Door glass frame, 2. Water guide groove, 3. Nominal entry amount, 4. Recessed amount, 5. Door glass, 6. Protrusion amount, 7. Glass guide groove. DETAILED DESCRIPTION

[0026] It should be noted that in the description of the present invention, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect" and the like should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; the connection can be a mechanical connection or an electrical connection; the connection can be a direct connection or an indirect connection through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Experimental preparation

[0029] Check whether the installation status of the test vehicle's exterior parts is normal;

[0030] Clean the entire vehicle, especially the water-cut parts;

[0031] Send the test car to the wind tunnel;

[0032] Fix the test vehicle on the turntable;

[0033] Prepare a 15cm ruler or vernier caliper.

[0034] Test Procedure

[0035] The vehicle speed changes from 80km / h to 20km / h, reaching the target speed and increasing the wind speed;

[0036] At this time, the turntable is rotated to form a complementary angle so as to receive a side wind of 10m / s;

[0037] Set the blower to the FRESH (fresh air) position;

[0038] After reaching the target vehicle speed, the door glass 5 is opened from the fully closed state;

[0039] Close the door glass 5 from the half-open position and check whether there is any obstacle to closing. If there is any obstacle to closing, proceed in the following order;

[0040] Use a ruler or caliper to measure the amount of the door glass 5 sucked out (bulge amount 6) and the amount of the door glass 5 pressed in (indent amount 4);

[0041] When measuring the suction amount (bulge amount 6), if the glass run groove 7 is installed, the door glass 5 is lowered to a position 2.0 mm below the glass run groove 7. If the glass run groove 7 is not installed, it is lowered 10 mm in the fully closed state.

[0042] When measuring the pressing amount (recess amount 4), the front end of the door glass 5 is lowered to a position away from the water flow guide groove 2;

[0043] The positions for measuring the sucked-out amount (bulge amount 6) include two positions: the center position of the door glass 5 and the position 100 mm away from the upper corner of the door glass frame 1 if the glass run channel 7 is provided.

[0044] The measurement of the pressed amount (the recessed amount 4 ) is performed at the front upper end of the door glass 5 .

[0045] 3. Measurement matters / measurement principles

[0046] Measurement matters

[0047] Whether the door glass 5 is completely closed;

[0048] The amount of suction (bulging amount 6) and the amount of depression (depression amount 4) of the door glass 5 when a failure occurs.

[0049] Measurement essentials

[0050] When checking whether the door glass 5 is completely closed, the door glass 5 is lowered from a half-open state, and then completely closed;

[0051] When measuring the suction amount (bulge amount 6) and the indentation amount (recess amount 4), set a reference point at the top of the joint trim of the cab flange (flange), use it as a reference, and measure with a caliper or steel ruler.

[0052] Data processing method

[0053] The test result of whether or not the door glass 5 is prevented from being completely closed is recorded.

[0054] When measuring the suction amount (bulge amount 6) and the pressure amount (recess amount 4), make the following Figure 1 Graph of the curve.

[0055] Evaluation Criteria

[0056]

[0057] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent replacement and improvement made by any person skilled in the art within the technical scope disclosed by the present invention and within the spirit and principle of the present invention shall be covered within the protection scope of the present invention. At the same time, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A method for testing the closing force of a door glass under high-speed driving, characterized in that: The following steps are involved: S1 Check whether the installation status of the test vehicle's exterior parts is normal, clean the vehicle as a whole, send the test vehicle to the wind tunnel, and fix the test vehicle on the turntable; S2 starts the car to reach the target speed and opens the wind tunnel; S3 rotates the turntable to form a complementary angle so that the whole vehicle is exposed to side wind; After S4 reaches the target speed, the door glass is opened from fully closed to half open; S5 Close the door glass from the half-open position to check if there is any obstacle to closing. If there is an obstacle to closing, then in step S4, the bulging amount and the recessing amount of the door glass are measured; If there is no hindrance to closing, increase the wind speed in step S2; S6 evaluates the test results by making a graph showing the relationship between vehicle speed, bulge and recess.

2. A method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: In step S2, the target vehicle speed is 10-30 km / h.

3. A method for testing the closing force of a door glass under high-speed driving according to claim 2, characterized in that: In step S2, the target vehicle speed is 20 km / h.

4. A method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: In step S3, the complementary angle is 30-60 degrees.

5. A method for testing the closing force of a door glass under high-speed driving according to claim 4, characterized in that: In step S3, the complementary angle is 45 degrees.

6. A method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: In step S3, the crosswind speed is 0-20 km / h.

7. The method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: In step S5, when measuring the bulging amount of the door glass, if a glass run channel is installed, the door glass is lowered to a position 2.0 mm below the glass run channel.

8. The method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: In step S5, when measuring the bulging amount of the door glass, if the glass run groove is not installed, the door glass is lowered 10 mm when the door glass is fully closed, 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.

9. The method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: In step S5, when measuring the indentation amount of the door glass, the front end of the door glass is lowered to a position away from the water flow guide groove, and the measurement is performed at the front upper end of the door glass.

10. A method for testing the closing force of a door glass under high-speed driving according to claim 1, characterized in that: When testing the bulging and recessing of the door glass, set a reference point at the top of the joint trim of the cab flange and use it as a reference for measurement.

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