CN203069384U - Electric rearview mirror performance and durability test bench - Google Patents
Electric rearview mirror performance and durability test bench Download PDFInfo
- Publication number
- CN203069384U CN203069384U CN 201220710702 CN201220710702U CN203069384U CN 203069384 U CN203069384 U CN 203069384U CN 201220710702 CN201220710702 CN 201220710702 CN 201220710702 U CN201220710702 U CN 201220710702U CN 203069384 U CN203069384 U CN 203069384U
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- rearview mirrors
- processor
- driven rearview
- rearview mirror
- performance
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- Expired - Fee Related
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- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
The utility model discloses an electric rearview mirror performance and durability test bench. The electric rearview mirror performance and durability test bench can carry out a durability test on an electric rearview mirror assembly, does not use a relay as a control device, simplifies a test control circuit and improves the reliability of the test bench. The electric rearview mirror performance and durability test bench comprises a processor, a motor drive circuit, position sensors, an electronic power switch and a current sensor. The processor is respectively connected with an up and down rotation drive motor and a right and left rotation drive motor of the electric rearview mirror through the motor drive circuit. The position sensors are respectively arranged on an up and down rotation mechanism and a right and left rotation mechanism of the electric rearview mirror, and a signal output end is connected with the processor. A control end of the electronic power switch is connected with the processor, and a switch contact is connected in series with a power supply circuit of an electric heater of the electric rearview mirror. The current sensor is connected in series with the power supply circuit of the electric heater of the electric rearview mirror, and a signal output end is connected with the processor.
Description
Technical field
The utility model relates to a kind of experimental provision, relates in particular to a kind of driven rearview mirrors performance and durability test device for automobile.
Background technology
In the electric component of automobile product, the driven rearview mirrors rotational orientation is many, space, rotating mechanism place widget compactness, uses again relatively frequently, and the probability that goes wrong is just higher relatively.Therefore, it is very necessary driven rearview mirrors motor especially driven rearview mirrors assembly being carried out endurancing.Open day be that on 08 23rd, 2006, publication number are that the patent documentation of CN 2809619Y discloses such technical scheme, a kind of electronic electrical heating rearview mirror test unit, wherein automatically controlled part is participated in collection and the processing of control and monitoring in real time and data by industrial computer, and the signal after will gathering sends among the programmable controller PLC, after it accepts operational order, the relay group is controlled; Switching value, analog signals that signal-processing board and industrial computer carry out communication, industrial computer collection carry out conversion, the processing of signal by this disposable plates, reach each parts and can identify, gather.This device can satisfy measurement, collection and the requirement of experiment of the various data of multiple vehicle driven rearview mirrors under varying environment.It is too complicated that but this technical scheme just seems during as the driven rearview mirrors durability experiment, use inconvenient, and also can only carry out endurancing to the motor of driven rearview mirrors during endurancing, it is not the durability experiment of driven rearview mirrors assembly, moreover in device, used too much relay, reduced the reliability of test unit.
Summary of the invention
The utility model fundamental purpose is to provide a kind of driven rearview mirrors performance and endurance test bed, it can carry out endurancing to the driven rearview mirrors assembly, and avoid using relay as control device, simplified the test operation circuit, improved the reliability of testing table, and can carry out the driven rearview mirrors Performance Detection, use very convenient.
The utility model is mainly solved by following technical proposals at the prior art problem, a kind of driven rearview mirrors performance and endurance test bed, comprise processor, motor-drive circuit, position transducer, electronic power switch and current sensor, processor connects rotational drive motor up and down and the left-right rotation drive motor of driven rearview mirrors respectively by motor-drive circuit, position transducer is installed on the rotating mechanism up and down of driven rearview mirrors respectively and in the left-right rotation mechanism, signal output part connects processor, the control end of electronic power switch connects processor, make and break contact is serially connected in the electric heater electric power loop of driven rearview mirrors, and current sensor is serially connected in the electric heater electric power loop of driven rearview mirrors, signal output part connects processor.
Here, processor control motor-drive circuit threshes up and down driven rearview mirrors and rotates, left-right rotation, and detect each rotation by position transducer and whether put in place, therefore, not only detected in test the machine operation permanance of driven rearview mirrors, also detected the physical construction permanance of rotating mechanism, what namely detect is the permanance of driven rearview mirrors assembly; In test by electronic, motion duration and the maximum angle of rotation and the setting range of minimum angles when rotary electric machine rotate in place up and down of record left-right rotation at every turn, thus the performance of evaluation and test driven rearview mirrors; Simultaneously, this technical scheme also can be carried out the electric heater endurancing to the driven rearview mirrors that has the electrical heating defrosting, interval time by regulation electric heater is powered up in test, electric current is wherein flow through in detection, when current anomaly, be zero and think that electric heater lost efficacy such as powering up after-current, and record energising number of times or total duration of switching on, thereby detect its permanance.
As preferably, processor also connects display and keyboard.Use keyboard to carry out operations such as test parameters setting, test control, and test parameters, test findings are presented on the display.
As preferably, processor is PLC.PLC has plurality of advantages such as reliability height, port is abundant, programming is convenient, can select flexibly as required.
As preferably, position transducer is hall position sensor.Hall position sensor generally all is installed in the driven rearview mirrors.At the trial, if hall position sensor is not installed in the driven rearview mirrors also can install very easily, during installation Hall chip is fixed on the stationary part of rearview mirror rotating mechanism, permanent magnet is fixed on the spiral pivot, make that Hall chip was exported corresponding variable signal as the rotational angle signal when spiral pivot rotated, the rotational angle signal becomes minimum from maximum again and is designated as a circulation after minimum becomes maximum.
As preferably, motor-drive circuit is H bridge driving circuit.H bridge driving circuit is convenient to processor control, can realize the forward and backward control of direct current generator easily, compares relay and has higher reliability.
The beneficial effect that the utility model brings is, can carry out endurancing and performance evaluating to the driven rearview mirrors assembly, test findings is the closing to reality result of use more, also simplified the test unit structure, and use electronic switch and circuit to substitute relay, improved the reliability of testing table, used very convenient.
Description of drawings
Fig. 1 is a kind of schematic diagram of the present utility model;
Fig. 2 is a kind of H bridge driving circuit schematic diagram of the present utility model.
Among the figure: the 1st, processor, the 2nd, motor-drive circuit, the 3rd, driven rearview mirrors, the 31st, rotational drive motor up and down, the 32nd, left-right rotation drive motor, the 33rd, electric heater, the 4th, position transducer, the 5th, current sensor, the 6th, electronic power switch, the 7th, display, the 8th, keyboard.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: as shown in Figure 1, the utility model is a kind of driven rearview mirrors performance and endurance test bed.Wherein, processor 1 adopts PLC, and motor-drive circuit 2 adopts H bridge driving circuit, and position transducer 4 adopts hall position sensor, and electronic power switch 6 is made of nmos pass transistor and control circuit.
The rotational drive motor up and down 31 of driven rearview mirrors 3 is connected 12V direct supply and PLC by a H bridge driving circuit respectively with left-right rotation drive motor 32, and A, the B of H bridge driving circuit, C end is respectively and enables control end, forward rotation control end and backward rotation control end.
Position transducer 4 is that the quantity of hall position sensor is two, and one is installed in driven rearview mirrors up and down on the rotating drive mechanism, and another is installed on the driven rearview mirrors left-right rotation driving mechanism; Concrete mounting means is: the stationary part that Hall chip is fixed on rotating mechanism, permanent magnet is fixed on the spiral pivot, make that the magnetic field of Hall chip induction changed thereupon when the spiral pivot rotated, thereby make Hall chip export corresponding voltage signal as the rotational angle signal, the rotational angle signal becomes from minimum and becomes minimum from maximum again after maximum and be designated as a circulation, and PLC records at every turn simultaneously from the minimum angles to the maximum angle, maximum angle is to motion duration and maximum angle and the minimum angles value range of minimum angles.The power supply of hall position sensor is provided by PLC, and the voltage signal output end mouth connects the A/D port of PLC.
Figure 2 shows that H bridge driving circuit schematic diagram.Among the figure, Q1-Q4 constitutes the H bridge, and the drive motor of driven rearview mirrors is connected a end and b end, and A, B, C end connect the I/O port of PLC respectively.
During test, driven rearview mirrors is fixed on the testing table, is electrically connected rotational drive motor 31, left-right rotation drive motor 32, electric heater 33 and hall position sensor up and down, by keyboard 8 input setup parameters.PLC control rotational drive motor 31, left-right rotation drive motor 32 up and down is reciprocating, drive about the driven rearview mirrors, left-right rotation, whether position transducer 4 detects and rotate in place, and the record initial position to the motion duration in final position and initial position (minimum rotatable angle) to terminal position (maximum rotatable angle) angular range, judge whether angle value normal, its result is presented on the display 7 and maintenance.In the process, not moving in the regulation duration if drive motor powers up puts in place, then thinking to lose efficacy and stop this subitem test.PLC presses setup parameter, and electric heater 4 was powered up repeatedly by interval time, detects the electric current when at every turn powering up, and record, show, preserve, powering up but electric current when (such as being zero), thinks that then electric heater lost efficacy not in normal range, stopping this subitem test.
So the utlity model has following characteristics: the driven rearview mirrors assembly is carried out endurancing and performance evaluating, test findings is the closing to reality result of use more, use electronic switch and circuit to substitute relay and simplified the test unit structure, and improved the reliability of testing table, use very convenient.
Claims (5)
1. a driven rearview mirrors performance and endurance test bed, it is characterized in that: comprise processor, motor-drive circuit, position transducer, electronic power switch and current sensor, described processor connects rotational drive motor up and down and the left-right rotation drive motor of driven rearview mirrors respectively by motor-drive circuit, described position transducer is installed on the rotating mechanism up and down of driven rearview mirrors respectively and in the left-right rotation mechanism, signal output part connects processor, the control end of described electronic power switch connects processor, make and break contact is serially connected in the electric heater electric power loop of driven rearview mirrors, and described current sensor is serially connected in the electric heater electric power loop of driven rearview mirrors, signal output part connects processor.
2. according to the described a kind of driven rearview mirrors performance of claim 1 and endurance test bed, it is characterized in that: described processor also connects display and keyboard.
3. according to claim 1 or 2 described a kind of driven rearview mirrors performance and endurance test beds, it is characterized in that: described processor is PLC.
4. according to the described a kind of driven rearview mirrors performance of claim 1 and endurance test bed, it is characterized in that: described position transducer is hall position sensor.
5. according to the described a kind of driven rearview mirrors performance of claim 1 and endurance test bed, it is characterized in that: described motor-drive circuit is H bridge driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710702 CN203069384U (en) | 2012-12-20 | 2012-12-20 | Electric rearview mirror performance and durability test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710702 CN203069384U (en) | 2012-12-20 | 2012-12-20 | Electric rearview mirror performance and durability test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069384U true CN203069384U (en) | 2013-07-17 |
Family
ID=48768158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220710702 Expired - Fee Related CN203069384U (en) | 2012-12-20 | 2012-12-20 | Electric rearview mirror performance and durability test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203069384U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257258A (en) * | 2016-05-22 | 2016-12-28 | 湖南吉利汽车部件有限公司 | Rearview mirror device for detecting durability and method thereof |
| CN106872149A (en) * | 2017-03-31 | 2017-06-20 | 上汽通用五菱汽车股份有限公司 | A kind of automobile rearview mirror folds the test-bed and test method of long duration test |
| CN114878151A (en) * | 2022-03-29 | 2022-08-09 | 中国第一汽车股份有限公司 | Device, method and system for testing turnover endurance test of exterior rearview mirror |
-
2012
- 2012-12-20 CN CN 201220710702 patent/CN203069384U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257258A (en) * | 2016-05-22 | 2016-12-28 | 湖南吉利汽车部件有限公司 | Rearview mirror device for detecting durability and method thereof |
| CN106257258B (en) * | 2016-05-22 | 2019-01-11 | 湖南吉利汽车部件有限公司 | Rearview mirror device for detecting durability and its method |
| CN106872149A (en) * | 2017-03-31 | 2017-06-20 | 上汽通用五菱汽车股份有限公司 | A kind of automobile rearview mirror folds the test-bed and test method of long duration test |
| CN106872149B (en) * | 2017-03-31 | 2023-07-28 | 上汽通用五菱汽车股份有限公司 | Test bed and test method for folding endurance test of automobile rearview mirror |
| CN114878151A (en) * | 2022-03-29 | 2022-08-09 | 中国第一汽车股份有限公司 | Device, method and system for testing turnover endurance test of exterior rearview mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20171220 |