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QC/T 218-2017

Chinese Standard: 'QC/T 218-2017'
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QC/T 218-2017English509 Add to Cart Days<=6 Technical specification of steering column switch for vehicles Valid QC/T 218-2017
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BASIC DATA
Standard ID QC/T 218-2017 (QC/T218-2017)
Description (Translated English) (Technical conditions for combination switch on steering column for automobile)
Sector / Industry Automobile & Vehicle Industry Standard (Recommended)
Date of Issue 2017-01-09
Date of Implementation 2017-07-01
Older Standard (superseded by this standard) QC/T 218-1996
Regulation (derived from) Ministry of Industry and Information Technology Announcement No.2 of 2017
Summary This standard specifies the terms and definitions, requirements, test methods, inspection rules, etc. of the combination switch on the steering column for automobiles.

QC/T 218-2017
Technical specification of steering column switch for vehicles
Technical requirements for combination switches on automotive steering column
1 Scope
This standard specifies the terms and definitions, requirements, test methods,
Inspection rules, etc.
This standard applies to combination switches installed on the steering column of automobiles.
2 Normative references
The following documents are essential for the application of this standard. For dated references, only the dated version applies
This standard. For undated references, the latest version (including all amendments) is applicable to this standard.
GB 4094 Marks for vehicle controls, indicators and signaling devices
QC/T 625-1999 Coating and chemical treatment layer for automobile
GB/T 186 55-2010 Limits and measurement methods for radio disturbance characteristics of vehicles, ships and internal combustion engines to protect on-board receivers
GB/T 21437.2-2008 Road vehicles. Electrical disturbances caused by conduction and coupling. Part 2. Electrical transient conduction along power lines
GB/T 21437.3-2012 Road vehicles. Electrical disturbances caused by conduction and coupling. Part 3. Except power lines
Electrical transient emission of a wire through capacitive and inductive coupling
GB/T.19951-2005 Test method for electric disturbance caused by electrostatic discharge of road vehicles
GB/T 33014.2-2016 Road vehicle electrical/electronic components immunity test method for narrowband radiated electromagnetic energy-Part 2. Anechoic chamber
GB/T 33014.4-2016 Road vehicle electrical/electronic components immunity test method for narrow band radiated electromagnetic energy. Part 4. Large current injection method
GB/T 28046.1-2011 Environmental conditions and tests for electrical and electronic equipment of road vehicles. Part 1. General requirements
GB/T 28046.2-2011 Environmental conditions and tests for electrical and electronic equipment of road vehicles. Part 2. Electrical loads
GB/T 28046.3-2011 Environmental conditions and tests for electrical and electronic equipment of road vehicles. Part 3. Mechanical loads
GB/T 28046.4-2011 Environmental conditions and tests for electrical and electronic equipment of road vehicles Part 4. Climate load
GB/T 2828.1-2012 Counting sampling inspection procedure Part 1. Sampling plan for batch inspection inspection according to acceptance quality limit (AQL)
QC/T 413-2002 Basic technical requirements for automotive electrical equipment
3 terms and definitions
Column F terms and definitions apply to this standard.
3.1
Steering column switches on steering column
The device is installed on the steering column of a car and is a combination of switches that control the lights, signals, and electrical components of the car.
3.2
Electronic combination switch electrical steering column switches
The circuit contains a combination switch of electronic components.
3.3
Active electrical steering column switches
Electronic combination switch with active electronic components in the circuit. Active electronic components such as analog amplifier circuits, switching power supplies,
Microprocessor-based controllers, etc.
3.4
Auto return framework
When the handle of the turn signal switch is in the left (L) or right (R) position, the steering wheel returns from the left or right position
Mechanism for automatically returning the handle to the middle (N) position and installed in the switch.
3.5
Speed character
The automatic return mechanism withstands the characteristic of canceling the steering signal when the steering wheel returns at high speed.
4 Requirements
4.1 General requirements
4.1.1 Product drawings and technical documents.
The combination switch shall comply with the requirements of this standard and be manufactured in accordance with the requirements of product drawings and technical documents approved by prescribed procedures.
4. 1.2 Appearance.
The combination switch should have good appearance quality, the structure should be intact, and there should be no bad assembly such as wrong installation and missing installation;
No bubbles, blanks, accumulation and overflow; metal parts should have anti-corrosion layer; plastic parts should have no cracks, no deformation that affects use and appearance.
The indication and signal identification symbols used by the combination switch shall comply with the provisions of GB 4094. The identification symbols shall be clear and free from local shedding, shrinkage or blurring.
4. 1.3 Dimensions.
The size of the combination switch should conform to the specifications of the product model.
4. 2 Rated load
The rated load of the combination switch shall comply with the provisions of the product technical documentation.
4.3 Function, performance and characteristics
4. 3.1 Gears and functions.
The combination switch gear position should be flexible to switch, accurate and reliable positioning, no loosening and blocking phenomenon. Switch with automatic return function
After the force is eliminated, it should be able to return automatically and accurately. From one gear to another, the combination switch identification symbol indicates that the position should be correct.
Its functions can generally include some or all of the functions listed in Table 1. If necessary, it can also have functions not listed in Table 1.
4.2 1 Slow drop and rise of power supply voltage
The electronic combination switch shall be subjected to the slow drop and slow rise test of the supply voltage. During the test, the functions and functional characteristics and voltage drop shall meet
The provisions of 4.3.4.7; after the test, it should be on and off normally.
4. 22 Transient change of supply voltage
4. 22. 1 The supply voltage drops momentarily.
The electronic combination switch shall be subjected to a transient drop test of the supply voltage. During the test, the functions and functional characteristics and voltage drop shall comply with 4.3,
4.7 provisions; after the test should be on and off normally.
4. 22. 2 Reset performance against voltage dips.
Electronic combination switches shall be tested for reset performance against voltage sags. During the test, the functions and functional characteristics and voltage drop shall meet
The requirements of 4.3 and 4.7; after the test, the continuity should be normal.
4.2 3 Reverse voltage
Electronic combination switches shall be tested for reverse voltage. After the test, the connection should be normal after the connection is restored.
4.2 4 Open circuit test
Electronic combination switches shall be tested for open circuit. After the test, the connection should be normal after the connection is restored.
4. 2 5 short circuit protection
4.2 5. 1 Signal circuit.
The combination switch constituted by the signal circuit shall be subjected to a short-circuit protection test. After the test, the connection should be normal after the connection is restored.
4. 2 5. 2 Load circuit.
The combination switch constituted by the load circuit shall be subjected to a short-circuit protection test. After the test, all electronic protection outputs shall be able to withstand short
Circuit current, and can return to normal operation after cutting off the short-circuit current (function status is Class C as defined by GB/T 28046.1-2011).
All conventional fuse protection output terminals should be able to withstand short-circuit currents and return to normal operation (functional status) after fuse replacement
Class D as defined in GB/T 28046.1-2011). All unprotected outputs are allowed to be burned by the experimental current (function status is
GB/T 28046.1-2011 class E)
4.2 6 Insulation resistance
The insulation resistance between the non-current-connected contacts and between the non-current-connected contacts and the housing in the combination switch should be greater than 10MΩ.
4.2 7 EMC performance
4.2 7. 1 Conducted emission.
Active electronic combination switches shall be subjected to conducted emission tests. Conducted disturbance limits (peak and average) of the tested combination switch sample
Value) must meet the relevant requirements of level 3 in GB/T 18655-2010.
4.2 7. 2 Radio frequency radiation emission.
Active electronic combination switches shall be subjected to radio frequency radiation emission tests. Radiated disturbance limit (peak and peace) of the tested combination switch sample
Mean value) must meet the relevant requirements of level 3 in GB/T 18655-2010.
4.2 7. 3 Voltage transient emission.
Active electronic combination switches shall be subjected to a voltage transient emission test. The transient voltage requirements of the sample under test are as follows. for 12 V
System vehicles. The positive transient voltage should not exceed 75 V, and the negative transient voltage should not exceed -100 V; for 24 V system vehicles. positive
The transient voltage should not exceed 150 V, and the negative transient voltage should not exceed -450 V.
4.2 7. 4 RF anti-jamming-anechoic chamber method.
5. 6 Operational sound test
The test was conducted in a quiet room, and the background noise level was not greater than 36 dB. Install the combination switch on a special test bench. Place one
Microphone whose longitudinal axis is perpendicular to the center of the part to be measured of the switch,.200 meters from the center of the part of the switch
Function gears, and then measure the operating sound of each gear.
5. 7 Voltage drop test
Perform voltage drop detection on each function of the combination switch. The switch is connected to the load or other requirements specified in the product-specific specifications.
The load, the contacts are activated 3 times in a charged manner, and then the voltage drop at the output is measured with a millivolt meter. Each pair of outputs is measured 3 times.
Its average.
5.8 Contact temperature rise test
The switch is connected to the load specified in the product-specific specification, and the circuit is tested for testing. Distribute at the terminal closest to each contact
Do not measure temperature rise. If the temperature rise within 30 minutes is not greater than 1 "C, the temperature can be considered stable, and the measured value is recorded as a test
Operate each result normally.
5. 9 Contact flutter test
The switch is connected to the load specified by the product-specific specifications, and the oscilloscope is used to measure the contact vibration time of each switch when it is turned on and off.
Manually simulate the different gears of the operating switch. For each gear, continuously measure the contact beating time 3 times, and take the average value.
5.10 Temperature resistance test
5.10.1 Low temperature resistance test.
5.10.1.1 Low temperature storage performance test.
Test in accordance with the test method specified in 5.1.1.1 of GB/T 28046.4-2011.
5.10.1.2 Low temperature resistance performance test.
The combination switch is installed on a special test bench, and the test bench is placed in a low temperature box. According to GB/T 28046.4-2011
The test shall be carried out in accordance with the test method specified in 5.1.1.2.
5.10.2 High temperature resistance test.
5.10.2.1 High temperature storage performance test.
Test in accordance with the test method specified in 5.1.2.1 of GB/T 28046.4-2011.
5.10.2.2 Test of running temperature resistance.
Install the combination switch on a special test bench, and place the test bench in a high temperature box according to GB/T 28046.4-2011
The test shall be carried out in accordance with the test method specified in 5.1.2.2.
5.11 Resistance to temperature cycling
Test in accordance with the test method specified in 5.3.1 of GB/T 28046.4-2011.
5.12 Moisture and heat cycle resistance test
Test in accordance with the test method specified in 5.6.2.2 of GB/T 28046.4-2011.
5.13 Salt spray resistance test
Test in accordance with the test method specified in 5.5.1 of GB/T 28046.4-2011.
5.14 Dust resistance test
Put the combination cock on the special test bench, add all the shields and covers, and put the drain hole in the test box without closing it. Dust Adopted
Lisanna ash. The air mixed dust moves for 6 s, and a 15-minute pause is 1 cycle; a total of 20 cycles are performed.
5.15 Vibration resistance test
Install the combination switch on the vibration test bench, and the passenger car shall be tested in accordance with 4.1.2.4 of GB/T 28046.3-2011.
The test is carried out by commercial vehicles according to the test method specified in 4.1.2.7 of GB/T 28046.3-2011.
5.16 Sign symbol strength test
5.16. 1 Chemical resistance test.
The test is carried out on the parts with marked symbols on the combination switch. Clean indoor cleaners, coffee and sugar drinks, glass
50 mL of detergent, detergent, artificial sweat reagent, use 30 cmX 30 cm cotton towel to inhale the surface of the wet parts, and then in the air
Dry for 15 s, followed by storage for 48 h (samples of indoor cleaners, coffee and sugar are stored at 80 X. conditions; glass cleaners, to
Samples of stains and artificial sweat are stored at room temperature), and then the test items are evaluated.
5.16. 2 Adhesion performance test.
The test is carried out on the parts with marked symbols on the combination switch. 20 mm/s ~ 50 mm/s uniform speed, pitch 1
Cut the grid on the surface of the part marking symbol, and then use tape (3M 610 model or negotiate between the supplier and the buyer) to adhere to the cutting surface for 1 min ~
After 2 minutes, keep it perpendicular to the cutting surface and tear off instantly, and then evaluate the test items.
5.16. 3 Abrasion resistance test.
The test is carried out on the parts with marked symbols on the combination switch. Use a dry rubbing fabric (colorless,
Bleached hessian linen), rubbing on the surface of the dry switch mark with 9 N pressure. At 16 times/min
The speed is 20 cm, and 2,000 frictional movements are performed back and forth, and then the items are tested and evaluated.
5.17 Durability test
5.17. 1 Durability test rules.
For different parts of the combination switch, carry out the test according to the following methods. For integrated switches, the test uses the same set of samples
The following tests are performed in order; for split switches, the same set of samples are used for the switches on the same split, and different splits are tested sequentially.
Tests can be performed separately.
5.17.2 Turn signal switch.
The switch is connected to the load specified by the product-specific specifications or other specified loads, and the test is performed at a rate of 15 times/min to 30 times/min.
Each full conversion cycle includes the following.
a) OFF—left (or right) lane change—left (or right) turn
b) Use the special fixture to perform the automatic return operation of the switch
c) OFF—right (or left) lane change—right (or left), repeat b) Program action
The shift time of each gear is 0.1 s to 0.5 s, the dwell time of each gear is 1 s to 2 s, and the dwell time after each full shift is 5 s to 7 s.
5.17.3 Dimmer switch.
The switch is connected to the load specified by the product-specific specifications or other specified loads, and the test is performed at a rate of 15 times/min to 30 times/min.
Each full conversion cycle includes the following.
Low beam-high beam-low beam-overtaking-low beam.
The shift time of each gear is 0.1 s to 0.5 s, the dwell time of each gear is 1 s to 2 S, and the dwell time after each full shift is 3 s to 5 s.
Related standard:   QC/T 216-2019  QC/T 236-2019
   
 
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