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Sensor for Automobile Electrical Power Steering
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QC/T 1084-2017: PDF in English (QCT 1084-2017) QC/T 1084-2017
AUTOMOTIVE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.50
T 23
Sensor for Automobile Electrical Power Steering
ISSUED ON: APRIL 12, 2017
IMPLEMENTED ON: OCTOBER 01, 2017
Issued by: Ministry of Industry and Information Technology of PRC
Attachment:
Number, name and date of implementation of 22 automotive industry
standards
No. Standard number Standard name Number of standard replaced
Date of
implementation
301 QC/T 727-2017 Instrument for automobile and motorcycle QC/T 727-2007 2017-10-01
302 QC/T 803-2017 Oxygen sensor for automobile QC/T 803.1-2008 2017-10-01
303 QC/T 1072-2017 Gear position sensor for automobiles 2017-10-01
304 QC/T 1073.1-2017 Accelerometers for automobiles - Part 1: Linear accelerometers 2017-10-01
305 QC/T 1074-2017 Technical specifications for automotive parts remanufacturing products 2017-10-01
306 QC/T 1075-2017
Technical conditions for metal
honeycomb carrier of exhaust catalytic
converter
2017-10-01
307 QC/T 777-2017
Technical conditions for
electromagnetic fan clutch of
automobile
QC/T 777-2007 2017-10-01
308 QC/T 1076-2017
Performance requirements and test
methods for continuously variable
transmission (CVT)
2017-10-01
309 QC/T 1077-2017
Terminology and definitions for
classification of automatic control
transmission for automobile
2017-10-01
310 QC/T 1078-2017 Advertising vehicle 2017-10-01
311 QC/T 1079-2017 Suction & delivery vehicle 2017-10-01
312 QC/T 1080-2017 Mobile loudspeaker for popularization of science 2017-10-01
313 QC/T 1081-2017 Electric power steering device for automobile 2017-10-01
314 QC/T 1082-2017 Motor for electric power steering device of automobile 2017-10-01
315 QC/T 1083-2017 Controller for electric power steering device of automobile 2017-10-01
316 QC/T 1084-2017 Sensor for electric power steering device of automobile 2017-10-01
317 QC/T 1085-2017
X-ray testing for light-alloy wheel of
motorcycle
2017-10-01
Table of Contents
Foreword ... 7
1 Scope ... 8
2 Normative References ... 8
3 Terms, Definitions and Classification ... 9
4 Technical Requirements ... 10
5 Test Methods ... 13
Sensor for Automobile Electrical Power Steering
1 Scope
This Standard specifies the general requirements, technical requirements and test
methods of sensor for automobile electrical power steering.
This Standard is applicable to the torque sensor and (angle) displacement sensor
(hereinafter referred to as sensor) for automobile electrical power steering.
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 document.
GB/T 2423.1 Environmental Testing for Electric and Electronic and Electronic
Products - Part 2: Test Methods - Tests A: Cold
GB/T 2423.2 Environmental Testing for Electric and Electronic Products - Part 2:
Test Methods - Tests B: Dry Heat
GB/T 2423.6 Environmental Testing for Electric and Electronic Products - Part 2:
Test Methods - Test Eb and Guidance: Bump
GB/T 2423.8 Environmental Testing for Electric and Electronic Products Part 2:
Test Methods - Test Ed: Free Fall
GB/T 2423.17 Environmental Testing for Electric and Electronic Products - Part 2:
Test Method - Test Ka: Salt Mist
GB/T 2423.22 Environmental Testing - Part 2: Tests Methods - Test N: Change of
Temperature
GB/T 2423.34 Environmental Testing - Part 2: Test Methods - Test Z/AD:
Composite Temperature/Humidity Cyclic Test
GB/T 18459 Methods for Calculating the Main Static Performance Specifications
of Transducers
b) Non-contact sensor: in the sensor working stroke, the signal is obtained by
magnetic coupling, electrical coupling, optical coupling, etc. (such as the sensor
with coil induction, Hall effect, giant magnetic (MR) bridge, capacitive electric
field, and other principles).
4 Technical Requirements
4.1 General requirements
4.1.1 Sensor.
The sensor is manufactured according to the product drawings and technical
documents approved byte prescribed procedures.
4.1.2 Working temperature.
The sensor shall work properly in the temperature range of -40°C~+85°C or +105°C
(the sensor for automobile electrical power steering is installed outside the cab).
4.1.3 Relative humidity.
The relative humidity that the sensor can withstand shall be ≤95%RH.
4.1.4 Sensor power supply or auxiliary working power.
The sensor power supply uses a DC regulated power supply of 24V or less.
4.1.5 Test apparatus equipment.
4.1.5.1 In the temperature range of 23°C±5°C, the measurement accuracy of the
torque, (angle) displacement, current, and voltage shall be no less than 0.5%FS.
4.1.5.2 In the temperature range of 23°C±5°C, the resolution of temperature
measurement shall be no less than 1°C.
4.1.5.3 In the temperature range of 23°C±5°C, the resolution of humidity
measurements shall be no less than 10%RH.
4.1.6 Resistance to industrial solvent.
The resistance to industrial solvent of sensor shall conform to the provisions of 3.14 in
QC/T 413.
4.1.7 Surface protection properties.
The surface protection properties of the sensor shall conform to the provisions of 3.15
4.2.8 Overvoltage.
After the test, the sensor can work properly.
4.2.9 Short circuit.
After the test, the sensor can work properly.
4.3 Environment
4.3.1 High temperature.
After the test, the sensor can work properly, and meet the requirements of 4.2.1~4.2.3.
4.3.2 Low temperature.
After the test, the sensor can work properly, and meet the requirements of 4.2.1~4.2.3.
4.3.3 High-low temperature-alternation.
After the test, the sensor can work properly, and meet the requirements of 4.2.1~4.2.3.
4.3.4 Temperature/humidity combination cycle.
After the test, the sensor can work properly, and meet the requirements of 4.2.1~4.2.3.
4.4 Reliability
4.4.1 Vibration.
After the sweeping vibration tests (for the contact sensor, it is required to do the
sweeping vibration test under the working state) of the sensor in the six directions of
up and down, front and rear, left and right, no visible cracks or breaks are allowed to
appear; shall meet the requirements of 4.2.1~4.2.3.
4.4.2 Vibration shock.
After the test, the sensor can work properly, and meet the requirements of 4.2.1~4.2.3.
4.4.3 Endurance.
The sensor shall, after reciprocating motion for 2 million times in the working stroke,
work properly; the entire vehicle works ≥300 thousand km with the electrical steering
device.
5.2.4.2 Insulation resistance.
When the withstand voltage test is required, apply a 50Hz/550V (rms) sinusoidal
voltage between the sensor conductive pin and the insulation housing for 1min; then
check that the insulation has no breakdown.
5.2.4.3 Lead wire tensile strength.
Apply a force of 50N along the direction of the lead wire for 2min; check whether there
is damage; perform the test in 5.2.1~5.2.3.
5.2.5 Drop.
Place the sensor at 1m height; then drop freely (the ground is hard solid ground), for
twice in the directions of up and down, front and rear, left and right; after the test, check
whether the sensor can work properly.
5.2.6 Reverse connection of power supply.
The sensor input is reversed by 1.1 times of the rated working voltage for 1min. After
the test is completed, restore the normal connection, check whether the sensor can
work properly.
5.2.7 Overvoltage.
Separately perform the short-circuit BETWEEN sensor’s (with a supply voltage of 12V)
output signal terminal, positive terminal of the power supply, reference ground pin AND
16V power supply (as per the user’s requirements) for 1min; after the test is completed,
check whether the sensor can work properly.
5.2.8 Short-circuit.
When the sensor works properly, separately perform short-circuit of the output signal
terminal, positive terminal of the power supply, reference ground pin for 1min; after the
test is completed, check whether the sensor can work properly.
5.3 Environment
5.3.1 High temperature.
5.3.1.1 The sensor works properly; test as per the test B: high temperature test method
stipulated in GB/T 2423.2.
5.3.1.2 Place it at the temperature of +85°C or +105°C (sensor is installed outside the
cab) for 96h.
5.3.1.3 After the test is completed, directly test in the test chamber as stipulated in
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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