CN215985139U - Automobile wiper test equipment - Google Patents

Abstract

The utility model discloses an automobile wiper testing device which comprises a water spray pipe, a first water supply pipe, a second water supply pipe, a water tank, a water pump, a data acquisition unit, a temperature sensor, a vehicle speed sensor, a shunt, a voltage sensor, a notebook computer, a high-speed camera, a water pump switch and a power supply module, wherein the water spray pipe is connected with the first water supply pipe and the second water supply pipe; the water spray pipe is fixed on the engine cover of the vehicle and is provided with a water spray hole; the water spraying pipe is connected with the water pump through a first water supply pipe, and the water pump is connected with the water tank through a second water supply pipe; the water pump is electrically connected with the power supply module through a water pump switch, and the data acquisition unit and the notebook computer are electrically connected with the power supply module; the temperature sensor is fixed on the surface of a wiper motor, the vehicle speed sensor is fixed on a wheel, the shunt and the voltage sensor are electrically connected in an electric loop of the wiper and are respectively and electrically connected with the data acquisition unit, and the data acquisition unit is electrically connected with the notebook computer. The utility model can test the performance of the wiper when the vehicle runs and record the movement process of the wiper.

Description

Automobile wiper test equipment

Technical Field

The utility model belongs to the field of vehicle testing, and particularly relates to automobile wiper testing equipment.

Background

The wiper is used for wiping off and cleaning rainwater, snow and other stains on the automobile windshield so as to ensure good visual field of a driver during driving and ensure driving safety. When a vehicle runs, particularly at a high speed, due to the influence of high-speed airflow, the wiper is easy to generate faults of unclean scraping, shaking, abnormal sound and the like, and the running safety is seriously influenced. The existing automobile wiper testing equipment can only test the performance of a wiper when a vehicle is static, cannot test and verify the performance of the wiper when the vehicle runs, and cannot judge the wiping effect of the wiper at different speeds.

Disclosure of Invention

The utility model aims to provide automobile wiper testing equipment to test the performance of a wiper when a vehicle runs and record the movement process of the wiper.

The utility model relates to an automobile wiper test device which comprises a water spray pipe, a first water supply pipe, a second water supply pipe, a water tank, a water pump, a data acquisition unit, a temperature sensor, a vehicle speed sensor, a shunt, a voltage sensor, a notebook computer, a high-speed camera, a water pump switch and a power supply module, wherein the water spray pipe is connected with the first water supply pipe; the water spray pipe is fixed on a vehicle engine hood and is provided with a plurality of water spray holes at intervals, and the water spray holes can spray water on a windshield to simulate rainwater; one end of the water spray pipe is plugged, the other end of the water spray pipe is connected with a water outlet of the water pump through a first water supply pipe, and a water inlet of the water pump is connected with the water tank through a second water supply pipe; the power end of the water pump is electrically connected with the power module through a water pump switch, and the power end of the data collector and the power end of the notebook computer are electrically connected with the power module; the temperature sensor is fixed on the surface of the wiper motor and used for detecting the temperature of the surface of the wiper motor in the working process of the wiper; the vehicle speed sensor is fixed on a wheel and used for detecting the vehicle speed when the vehicle runs; the current divider and the voltage sensor are electrically connected in an electric loop of the wiper, the current divider detects the working current of the wiper, and the voltage sensor detects the working voltage of the wiper; the temperature sensor, the vehicle speed sensor, the shunt and the voltage sensor are respectively electrically connected with the data collector, the data collector is electrically connected with the notebook computer, the data collector collects a temperature signal, a vehicle speed signal, a wiper working current signal and a wiper working voltage signal on the surface of the wiper motor and sends the signals to the notebook computer, and the notebook computer processes the signals; the water tank, the water pump switch, the data acquisition unit, the notebook computer and the high-speed camera are all placed in the vehicle, and the high-speed camera can shoot and record the whole motion process of the wiper on the windshield.

Preferably, the power module comprises a storage battery and an inverter, the inverter is electrically connected with the storage battery and converts direct current provided by the storage battery into 220V alternating current, a power supply end of the water pump is electrically connected with the inverter through a water pump switch, and a power supply end of the data collector and a power supply end of the notebook computer are electrically connected with the inverter.

Preferably, the high-speed camera is fixed on the camera support, one end of the camera support is connected with one end of the first connecting arm through a first buckle, the other end of the first connecting arm is connected with the headrest support of the main driving seat through a second buckle in a clamping manner, the other end of the camera support is connected with one end of the second connecting arm through a third buckle, and the other end of the second connecting arm is connected with the headrest support of the assistant driving seat through a fourth buckle in a clamping manner. The high-speed camera is firmly installed and can shoot the whole moving process of the wiper on the windshield.

Preferably, the water pump is a variable frequency water pump, and the flow of water is adjusted by adjusting the pump force of the variable frequency water pump, so that different rainfall amounts are simulated.

The utility model can test the performance of the wiper when the vehicle runs, record the movement process of the wiper, and accurately judge the wiping effect of the wiper at different speeds by replaying or slowly playing the shot video; the whole test equipment has low cost, simple and convenient operation and reliable operation, and is suitable for testing the performance of the wiper when various vehicles run.

Drawings

Fig. 1 is a schematic structural and schematic diagram of an automobile wiper testing apparatus in this embodiment.

Fig. 2 is a schematic view showing the installation of the high-speed camera in the present embodiment.

Detailed Description

As shown in fig. 1 and 2, the automobile wiper testing device in the present embodiment includes a water spray pipe 1, a first water supply pipe 2, a second water supply pipe 3, a water tank 4, a water pump 5, a data collector 6, a temperature sensor 7, a vehicle speed sensor 8, a flow divider 9, a voltage sensor 10, a notebook computer 11, a high-speed camera 12, a water pump switch 13 (for controlling the power supply of the water pump to be turned on and off), a battery 15, and an inverter 16. The water spraying pipe 1 is fixed on a vehicle engine cover through an adhesive tape, water spraying holes with the diameter of about 1mm are formed in the water spraying pipe 1 every 20mm, and water in the water spraying pipe 1 is sprayed upwards from the water spraying holes and can be sprinkled on a windshield to simulate rainwater. One end of the water spraying pipe 1 is plugged by a plug, the other end of the water spraying pipe 1 is connected with a first water feeding pipe 2, the first water feeding pipe 2 penetrates through a vehicle window and then is connected with a water outlet of a water pump 5 placed in the vehicle, and a water inlet of the water pump 5 is connected with a water tank 4 through a second water feeding pipe 3. The water tank 4 is used for storing water used for simulating rainwater, the water storage capacity of the water tank 4 is larger than or equal to 15L, the water tank 4 is provided with a water filling port 41, a ventilating hole with the diameter of 10mm is reserved in the water filling port 41, the water tank 4 is designed into a dummy shape and placed on a front passenger seat and fixed through a safety belt, the water pump 5 is used for pumping the water in the water tank 4 into the water spray pipe 1, the pumping pressure of the water pump 5 is larger than or equal to 0.3 MPa, the water pump 5 is a variable frequency water pump, and the flow of the water is adjusted by adjusting the pumping force of the variable frequency water pump, so that different rainfall is simulated. The power supply end of the water pump 5 is electrically connected with the inverter 16 through the water pump switch 13, the power supply end of the data collector 6 and the power supply end of the notebook computer 11 are electrically connected with the inverter 16, the inverter 16 is electrically connected with the storage battery 15, the inverter 16 converts 12V direct current provided by the storage battery 15 into 220V alternating current, and the water pump 5, the data collector 6 and the notebook computer 11 are powered; the storage battery 7 is a 12V common lead-acid battery with the capacity of 60 Ah. The temperature sensor 7 is fixed on the surface of the wiper motor and used for detecting the temperature of the surface of the wiper motor in the working process of the wiper 14; the vehicle speed sensor 8 is fixed on a wheel and detects the vehicle speed when the vehicle runs; the shunt 9 and the voltage sensor 10 are electrically connected to an electric circuit of the wiper 14, the shunt 9 detects a wiper operation current, and the voltage sensor 10 detects a wiper operation voltage. The temperature sensor 7, the vehicle speed sensor 8, the shunt 9 and the voltage sensor 10 are respectively electrically connected with the data acquisition unit 6, the data acquisition unit 6 is electrically connected with the notebook computer 11, the data acquisition unit 6 acquires a temperature signal, a vehicle speed signal, a wiper working current signal and a wiper working voltage signal on the surface of the wiper motor and sends the signals to the notebook computer 11, and the notebook computer 11 processes the signals. The acquisition channels of the data acquisition unit 6 are 4 paths, the voltage acquisition range is 0-20V, the current acquisition range is 0-50A, the vehicle speed acquisition range is 0-250km/h, and the sampling rate is 1 MHz. The notebook computer 11 is provided with data analysis software, can realize curve display, curve scaling and Y-axis coordinate range setting of selected channel data, can select any time and time range, can display data values at any time and solve the maximum value, the minimum value and the P-P value of the data in the selected time range, and can look up, copy and export the data in the selected time range. The water pump switch 13, the inverter 16, the storage battery 15, the data collector 6, the notebook computer 11 and the high-speed camera 12 are all arranged in the vehicle. The high-speed camera 12 is fixed on a camera support 17, one end of the camera support 17 is connected with one end of a first connecting arm 19 through a first buckle 18, the other end of the first connecting arm 19 is clamped on a headrest support 21 of a main driving seat through a second buckle 20, the other end of the camera support 17 is connected with one end of a second connecting arm 23 through a third buckle 22, and the other end of the second connecting arm 23 is clamped on a headrest support 25 of a front passenger seat through a fourth buckle 24. The number of the photographing pixels of the high-speed camera 12 is 1200 ten thousand, the number of the lenses is 2, the high-speed camera 12 can photograph and record the whole movement process of the wiper 14 on the windshield, and the storage capacity is larger than or equal to 32G.

Before testing, the vehicle state is checked to ensure that the vehicle state meets the testing requirements, and then the automobile wiper testing equipment is connected to start testing. The method specifically comprises the following steps: the switch of the high-speed camera 12 is turned on, the data collector 6 and the notebook computer 11 are turned on, the data collector 6 and the notebook computer 11 start to work, and the data collector 6 starts to collect and record signals input by the temperature sensor 7, the vehicle speed sensor 8, the shunt 9 and the voltage sensor 10; when the vehicle speed reaches an expected test value, the water pump switch 13 is pressed, the water pump switch 13 is connected with a power supply loop of the water pump 5, the water pump 5 is powered on and starts to work, the water pump 5 pumps the water in the water tank 4 into the water spray pipe 1, and the water in the water spray pipe 1 is sprayed out through the water spray holes, so that the environment during raining is simulated; the wiper switch in the vehicle is turned on while water is sprayed, and the wiper 14 starts to work; the water pump 5 adjusts the flow of water by adjusting the pump force of the variable frequency water pump, thereby simulating different rainfall amounts. And the water pump switch 13 is pressed again, the water pump switch 13 cuts off the power supply loop of the water pump 5, the water pump 5 stops working, and the water spray pipe 1 stops spraying water. And (4) turning off a wiper switch in the vehicle, turning off the high-speed camera 12 and the data collector 6, and finishing the test. Throughout the test, the high speed camera 12 records the movement of the wiper 14.

After the test is finished, the notebook computer 11 analyzes the temperature signal, the vehicle speed signal, the wiper working current signal and the wiper working voltage signal of the surface of the wiper motor, which are acquired by the data acquisition unit 12; meanwhile, video data shot and recorded by the high-speed camera 12 is copied into the notebook computer 11, the working process of the wiper can be replayed or slowly played through the player, and the movement process of the wiper can be observed more accurately, such as: whether the overturning process of the wiper adhesive tape is normal or not can be observed, and whether the wiper adhesive tape has the faults of shaking, scraping leakage and the like in the moving process or not can be observed.

Claims (4)

1. The utility model provides an automobile wiper test equipment which characterized in that: the device comprises a water spraying pipe (1), a first water supply pipe (2), a second water supply pipe (3), a water tank (4), a water pump (5), a data acquisition unit (6), a temperature sensor (7), a vehicle speed sensor (8), a current divider (9), a voltage sensor (10), a notebook computer (11), a high-speed camera (12), a water pump switch (13) and a power supply module; the water spraying pipe (1) is fixed on a vehicle engine cover and is provided with a plurality of water spraying holes at intervals, and the water spraying holes can spray water on a windshield to simulate rainwater; one end of the water spray pipe (1) is blocked, the other end of the water spray pipe is connected with a water outlet of a water pump (5) through a first water supply pipe (2), and a water inlet of the water pump (5) is connected with a water tank (4) through a second water supply pipe (3); the power supply end of the water pump (5) is electrically connected with the power supply module through a water pump switch (13), and the power supply end of the data acquisition unit (6) and the power supply end of the notebook computer (11) are electrically connected with the power supply module; the temperature sensor (7) is fixed on the surface of the wiper motor and used for detecting the temperature of the surface of the wiper motor in the working process of the wiper (14); the vehicle speed sensor (8) is fixed on a wheel and used for detecting the vehicle speed when the vehicle runs; the current divider (9) and the voltage sensor (10) are electrically connected in an electric circuit of the wiper (14) and respectively detect the working current and the working voltage of the wiper; the temperature sensor (7), the vehicle speed sensor (8), the shunt (9) and the voltage sensor (10) are respectively electrically connected with the data acquisition unit (6), and the data acquisition unit (6) is electrically connected with the notebook computer (11); the water tank (4), the water pump (5), the water pump switch (13), the data collector (6), the notebook computer (11) and the high-speed camera (12) are all placed in the vehicle, and the high-speed camera (12) can shoot and record the whole movement process of the wiper on the windshield.

2. The automobile wiper test apparatus according to claim 1, wherein: the power module comprises a storage battery (15) and an inverter (16), the inverter (16) is electrically connected with the storage battery (15) and converts direct current provided by the storage battery (15) into 220V alternating current, a power supply end of the water pump (5) is electrically connected with the inverter (16) through a water pump switch (13), and a power supply end of the data collector (6) and a power supply end of the notebook computer (11) are electrically connected with the inverter (16).

3. The automobile wiper test apparatus according to claim 2, wherein: the high-speed camera (12) is fixed on a camera support (17), one end of the camera support (17) is connected with one end of a first connecting arm (19) through a first buckle (18), the other end of the first connecting arm (19) is connected to a headrest support (21) of a main driving seat through a second buckle (20), the other end of the camera support (17) is connected with one end of a second connecting arm (23) through a third buckle (22), and the other end of the second connecting arm (23) is connected to a headrest support (25) of a front passenger seat through a fourth buckle (24).

4. The automobile wiper test apparatus according to any one of claims 1 to 3, wherein: the water pump (5) is a variable frequency water pump, and different rainfall amounts are simulated by adjusting the pump force of the variable frequency water pump.

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