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QC/T 218-2017 (QCT 218-2017)

QC/T 218-2017_English: PDF (QCT218-2017)
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BASIC DATA
Standard ID QC/T 218-2017 (QC/T218-2017)
Description (Translated English) Technical specification of steering column switch for vehicles
Sector / Industry Automobile & Vehicle Industry Standard (Recommended)
Classification of Chinese Standard T36
Word Count Estimation 28,218
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Older Standard (superseded by this standard) QC/T 218-1996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
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
T 36
Replacing QC/T 218-1996
Technical specifications for steering column switch
for vehicles
ISSUED ON: JANUARY 09, 2017
IMPLEMENTED ON: JULY 01, 2017
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Announcement ... 3
Foreword ... 9
1 Scope ... 11
2 Normative references ... 11
3 Terms and definitions ... 12
4 Requirements ... 13
5 Test method ... 21
6 Inspection rules ... 32
7 Marking, packaging, transportation and storage ... 34
Annex:
References, names and dates of implementation of 42 automotive industry
standards
No.
Standard
reference
Standard name
Standard
reference being
substituted
Date of
implementation
250 QC/T 776-2017 Motor caravan QC/T 776-2007 2017-07-01
251 QC/T 1051-2017 Coach car 2017-07-01
252 QC/T 1052-2017
Communication
vehicle
2017-07-01
253 QC/T 1053-2017
Concrete spraying
vehicle
2017-07-01
254 QC/T 1054-2017
Tunnel cleaning
vehicle
2017-07-01
255 QC/T 1055-2017
Drainage and rescue
vehicle
2017-07-01
256 QC/T 218-2017
Technical
specifications for
steering column
upper combined
switch of automobile
QC/T 218-1996 2017-07-01
257 QC/T 1056-2017
Technical
requirements and test
methods for
automotive dual
clutch automatic
transmission
assembly
2017-07-01
258 QC/T 245-2017
Technical
specifications for
isolated plant of
compressed-natural-
gas (CNG)
automobile
QC/T 245-2002 2017-07-01
259 QC/T 247-2017
Technical
specifications for
isolated plant of
liquefied petroleum
gas
QC/T 247-2002 2017-07-01
260 QC/T 1057-2017 Car snow chains 2017-07-01
261 QC/T 1058-2017
Car fingerprint
identification device
2017-07-01
Technical specifications for steering column switch
for vehicles
1 Scope
This standard specifies the terms and definitions, requirements, test methods,
inspection rules, etc. of the combined switch on the steering column of the
automobile (hereinafter referred to as the "combined switch").
This standard applies to combined switches installed on the steering column of
automobiles.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB 4094 Motor vehicles - Symbols for controls, indicators and tell-tales
QC/T 625-1999 Metallic coatings and conversion coatings for automobiles
GB/T 18655-2010 Vehicles boats and internal combustion engines - Radio
disturbance characteristics - Limits and methods of measurement for the
protection of on-board receivers
GB/T 21437.2-2008 Road vehicles - Electrical disturbances from conduction
and coupling - Part 2: Electrical transient conduction along supply lines only
GB/T 21437.3-2012 Road vehicles - Electrical disturbances from conduction
and coupling - Part 3: Electrical transient transmission by capacitive and
inductive coupling via lines other than supply lines
GB/T 19951-2005 Road vehicles - Test methods for electrical disturbances
from electrostatic discharge
GB/T 33014.2-2016 Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband radiated electromagnetic
energy - Part 2: Absorb-lined shielded enclosure
GB/T 33014.4-2016 Road vehicles - Component test methods for
controllers, etc.
3.4
Auto return framework
The mechanism installed in the switch which, when the handle of the turn
signal switch is in the left (L) or right (R) position, if the steering wheel returns
from the left or right position to the original position, makes the handle
automatically return to the neutral (N) position.
3.5
Speed character
The characteristics of automatic return mechanism which cancels 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 combined switch shall meet the requirements of this standard and be
manufactured in accordance with the requirements of the product drawings and
technical documents approved by the prescribed procedures.
4.1.2 Appearance
The combined switch shall have good appearance quality; the structure shall
be intact; there shall be no incorrect assembly, missing assembly or other poor
assembly. The surface paint film shall be uniform and free from blisters, blanks,
accumulation or overflow. The metal parts shall have an anti-corrosion layer.
The plastic parts shall be free of cracks; it shall have no deformation that affects
the use and appearance.
The indication and signal’s identification symbols used by the combined switch
shall comply with the requirements of GB 4094. The identification symbols shall
be clear and free from partial shedding, shrinkage or blurring.
4.1.3 Dimensions
The size of the combined switch shall conform to the specifications of the
product drawings of this type.
4.2 Rated load
The functions, functional characteristics and voltage drop shall meet the
requirements of 4.3 and 4.7.
4.12 Cyclic damp heat resistance
After the combined switch has been subjected to the cyclic damp heat test, its
appearance shall meet the requirements of 4.1.2. The functions, functional
characteristics and voltage drop shall meet the requirements of 4.3 and 4.7.
4.13 Salt spray resistance
After the combined switch has undergone the salt spray resistance test, its
appearance shall meet the requirements of 4.1.2. The functions, functional
characteristics, and voltage drop shall meet the requirements of 4.3 and 4.7.
There shall be no corrosion pits on the surface after cleaning.
4.14 Dust resistance
After the combined switch is subjected to the dust resistance test, the function,
functional characteristics and voltage drop shall meet the requirements of 4.3
and 4.7.
4.15 Vibration resistance
After the combined switch is subjected to the vibration resistance test, the
appearance shall meet the requirements of 4.1.2; the function, functional
characteristics and voltage drop shall meet the requirements of 4.3 and 4.7.
4.16 Strength of identification symbol
4.16.1 Resistance to chemical reagents
After the combined switch is tested for resistance to chemical reagents, the
surface of the sample does not change; meanwhile the marking content is clear
and readable.
4.16.2 Adhesion performance
After the adhesion test of the combined switch, the surface peeling off area of
the identification symbol, the corners of the square, the cut intersection shall
not be significantly larger than 5%.
4.16.3 Wear resistance
After the combined switch is subjected to abrasion resistance test, the
identification symbol shall be identifiable.
4.17 Durability
The electronic combined switch shall be subjected to a slow drop and slow rise
test of the power supply voltage. During the test, the functions, functional
characteristics, voltage drop shall meet the requirements of 4.3 and 4.7; after
the test, it shall be turned on and off normally.
4.22 Transient changes of supply voltage
4.22.1 Instant drop of power supply voltage
The electronic combined switch shall be subjected to an instantaneous drop
test of the supply voltage. During the test, the functions, functional
characteristics, voltage drop shall meet the requirements of 4.3 and 4.7; after
the test, it shall be turned on and off normally.
4.22.2 Reset performance for voltage dip
The electronic combined switch shall be subjected to a reset performance test
against voltage dip. During the test, the functions, functional characteristics,
voltage drop shall meet the requirements of 4.3 and 4.7; after the test, it shall
be turned on and off normally.
4.23 Reverse voltage
The electronic combined switch shall be subjected to a reverse voltage test.
After the test, it shall be turned on and off normally after the normal connection
is restored.
4.24 Open circuit test
The electronic combined switch shall be subjected to an open circuit test. After
the test, it shall be turned on and off normally after the normal connection is
restored.
4.25 Short circuit protection
4.25.1 Signal circuit
The combined switch formed by the signal circuit shall be subjected to a short-
circuit protection test. After the test, it shall be turned on and off normally after
the normal connection is restored.
4.25.2 Load circuit
The combined switch formed by the load circuit shall be subjected to a short-
circuit protection test. After the test, all electronic protection output terminals
shall ensure that they can withstand the short-circuit current and can resume
normal operation after the short-circuit current is cut off (the functional state is
Class C as defined in GB/T 28046.1-2011).
The test is conducted in a soundproof booth; the background noise level is not
more than 36 dB. Install the combined switch on the special test bench. Place
a microphone with its longitudinal axis perpendicular to the center of the
measured part of the switch, 200 mm away from the center of the measured
part of the switch. Operate each functional gear positions normally; then
measure the operating sound of each gear position.
5.7 Voltage drop test
Perform voltage drop testing for all functions of the combined switch. Apply the
load as specified in the dedicated product specification or other load as
specified to the switch. The contact is activated 3 times in a live mode; then the
voltage drop at the output terminal is measured by a millivoltmeter. Each pair of
output terminals is measured 3 times; the average value is taken.
5.8 Test of temperature rise of contact
Apply the load as specified in the dedicated product specification to the switch;
connect the circuit to perform the test. Measure the temperature rise at the lead-
out terminal closest to each contact. If the temperature rise value is not greater
than 1 °C within 30 minutes, the temperature can be considered stable; the
measured value is recorded as the test results.
5.9 Contact chattering test
Apply the load as specified in the dedicated product specification to the switch;
use an oscilloscope to measure the contact chattering time of each switch when
it is turned on and off. Manually simulate the different gear positions of the
operation switch. For each gear, the contact chattering time is continuously
measured for 3 times; the average value of the measurement is taken.
5.10 Temperature resistance performance test
5.10.1 Low temperature resistance performance test
5.10.1.1 Low-temperature storage performance test
Carry out the 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 operation performance test
Install the combined switch on a special test bench; place the test bench in a
low temperature chamber. Carry out the test according to the test method
specified in 5.1.1.2 of GB/T 28046.4-2011.
5.10.2 High temperature resistance performance test
air for 15 s, followed by storage for 48 hours (the specimens of indoor cleaner,
coffee and sugar are stored at 80 °C; the specimens of glass cleaner, detergent,
and artificial sweat are stored at room temperature); then the test items are
evaluated.
5.16.2 Adhesion performance test
Test the parts with identification symbols on the combined switch. At a uniform
speed of 20 mm/s ~ 50 mm/s, with a spacing of 1 mm, cut the grid on the surface
of the part identification symbol; then stick a tape (3M 610 model or as
negotiated between the supplier and the buyer) on the cutting surface for 1 min
~ 2 min. Make the surface be torn off at an instant; then evaluate the test items.
5.16.3 Abrasion resistance test
Test the parts with identification symbols on the combined switch. Use a dry
friction fabric (colorless, bleached cheesecloth) to wrap the plug of the
tribometer. Apply a pressure of 9 N on the surface of the dry switch identification
symbol for friction movement. At a speed of 16 times/min and a stroke of 20 cm,
perform 2000 frictional movements back and forth; then test the evaluation
items.
5.17 Durability test
5.17.1 Durability test rules
For different parts of the combined switch, test according to the following
methods. For one-piece switches, the same group of samples are used to
perform the following tests in sequence; for split switches, the same group of
samples are used for the same split switch to be tested sequentially; different
split switches can be tested separately.
5.17.2 Turn signal switch
Apply load specified in the product specification or other specified loads onto
the switch; at a rate of 15 times/min ~ 30 times/min, carry out the test. Each full
conversion cycle includes the following:
a) OFF- Left (or right) lane change - left (or right) turn;
b) Use a dedicated fixture to perform the automatic return action of the switch;
c) OFF - right (or left) lane change - right (or left), repeat the action of item
b).
The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear
is 1 s ~ 2 s; the dwell time after each full conversion is 5 s ~ 7 s.
Apply load specified in the product specification or other specified loads onto
the switch; at a rate of 6 times/min ~ 10 times/min, carry out the test. Each full
conversion cycle includes the following:
Change the gears from the initial position one by one; then return to the initial
position one by one.
The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear
is 1 s ~ 2 s; the dwell time after each full conversion is 1 s ~ 2 s.
5.17.8 Scrubber switch
Apply load specified in the product specification or other specified loads onto
the switch; at a rate of 6 times/min ~ 10 times/min, carry out the test. Each full
conversion cycle includes the following:
OFF - front scrubbing - OFF - rear scrubbing - OFF.
The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear
is 1 s ~ 2 s; the dwell time after each full conversion is 3 s ~ 5 s.
5.17.9 Cruise switch
Apply load specified in the product specification or other specified loads onto
the switch; at a rate of 15 times/min ~ 30 times/min, carry out the test. Each full
conversion cycle includes the following:
Cruise OFF - cruise ON - (OFF - increase of fixed speed - OFF - decrease of
fixed speed - OFF) - cruise OFF.
The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear
is 1 s ~ 2 s; the dwell time after each full conversion is 3 s ~ 5 s.
5.17.10 Menu page switch
Apply load specified in the product specification or other specified loads onto
the switch; at a rate of 6 times/min ~ 10 times/min, carry out the test. Each full
conversion cycle includes the following:
OFF - set/reset - (OFF- page up - OFF - page down - OFF) - OFF.
The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear
is 1 s ~ 2 s; the dwell time after each full conversion is 3 s ~ 5 s.
5.18 DC supply voltage test
Carry out the test according to the test method specified in 4.2 of GB/T 28046.2-
2011.
5.26 Insulation resistance test
Carry out the test in accordance with the test method specified in 4.12 of GB/T
28046.2-2011.
5.27 Electromagnetic compatibility performance test
5.27.1 Conducted emission - voltage method test
Carry out the test in accordance with the test methods specified in 6.2 and 6.3
of GB/T 18655-2010.
5.27.2 Radiation emission - ALSE test
Carry out the test in accordance with the test method specified in 6.4 of GB/T
18655-2010.
5.27.3 Voltage transient emission test
Carry out the test in accordance with the test method specified in 4.3 of GB/T
21437.2-2008.
5.27.4 Radio frequency anti-interference - free field method test
Carry out the test in accordance with the requirements in GB/T 33014.2-2016.
The test uses the anechoic chamber method.
5.27.5 Radio frequency anti-interference - high current injection method
test
Carry out the test in accordance with the requirements in GB/T 33014.4-2016.
The test uses the alternative method in the BCI method.
5.27.6 Transient conduction anti interference test of power line
Carry out the test in accordance with the test method specified in 4.4 of GB/T
21437.2-2008. The test class requirement is class III.
5.27.7 Transient conduction anti-interference test of signal line
Carry out the test in accordance with the requirements in GB/T 21437.3. The
test uses the capacitive coupling clamp (CCC) method. The test class
requirement is class III.
5.27.8 Electrostatic discharge test
Carry out the test according to the test method specified in 5.2 and 7.2 of GB/T
19951-2005