GB/T 43250-2023 English PDF (GB/T43250-2023)

GB/T 43250-2023: Automotive active infrared detection system
Delivery: 9 seconds. Download (& Email) true-PDF + Invoice.
Get Quotation: Click GB/T 43250-2023 (Self-service in 1-minute)
Historical versions (Master-website): GB/T 43250-2023
Preview True-PDF (Reload/Scroll-down if blank)

GB/T 43250-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Automotive active infrared detection system
ISSUED ON: NOVEMBER 27, 2023
IMPLEMENTED ON: NOVEMBER 27, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Symbols and abbreviations ... 7
5 Technical requirements ... 7
6 Test methods ... 19
7 Inspection rules ... 39
Annex A (informative) Photobiologically safe manufacturing guidelines for active
lighting units ... 41
Annex B (informative) Durability test ... 43
Annex C (informative) Durability test calculation model ... 45
Annex D (informative) Picture card layout ... 50
Bibliography ... 52
Automotive active infrared detection system
1 Scope
This document specifies the requirements, test methods and inspection rules for
automotive active infrared detection system.
This document applies to active infrared detection systems (hereinafter referred to as
systems) used in Class M and Class N vehicles. Systems used by other types of vehicles
shall be implemented with reference to this document.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 2828.1, Sampling procedures for inspection by attributes -- Part 1: Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 18655-2018, Vehicles, boats and internal combustion engines -- Radio
disturbance characteristics -- Limits and methods of measurement for the protection
of on-board receivers
GB/T 19951-2019, Road vehicles -- Disturbances test methods for
electrical/electronic component from electrostatic discharge
GB/T 20145-2006, Photobiological safety of lamps and lamp systems
GB/T 21437.2-2021, Road vehicles -- Test method of electrical disturbances from
conduction and coupling -- Part 2: Electrical transient conduction along supply
lines only
GB/T 21437.3-2021, Road vehicles -- Test method of electrical disturbances from
conduction and coupling -- Part 3: Electrical transient transmission by capacitive
and inductive coupling via lines other than supply lines
GB/T 28046.2-2019, Road vehicles -- Environmental conditions and testing for
electrical and electronic equipment -- Part 2: Electrical loads
GB/T 28046.3-2011, Road vehicles -- Environmental conditions and testing for
electrical and electronic equipment -- Part 3: Mechanical loads
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and purchaser.
5.5.2.4 Slow drop and rise of supply voltage
Test according to 6.5.1.4. When the voltage is USmin during the test and after the test,
the system functional condition shall reach level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.5 Slow drop and quick rise of supply voltage
Test according to 6.5.1.5. When the voltage is within the range of USmin~USmax during
the test and after the test, the system functional condition shall reach level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.6 Transient changes in supply voltage
5.5.2.6.1 Instantaneous drop in supply voltage
Test according to 6.5.1.6.1, and the system functional condition shall not be lower than
level C.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.6.2 Reset characteristics for voltage dips
Test according to 6.5.1.6.2. When the voltage returns to USmin during the test and after
the test, the system functional condition shall reach level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.6.3 Startup characteristics
Test according to 6.5.1.6.3, and the system functional condition shall not be lower than
level C.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.6.4 Load dump
Test according to 6.5.1.6.4, and the system functional condition shall not be lower than
level C.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.7 Reverse voltage
Test according to 6.5.1.7. After the test, the system functional condition shall reach level
A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.8 Short interruption of power supply
Test according to 6.5.1.8. During the test, when the power interruption time does not
exceed 100 μs, the system functional condition shall reach level A. When the power
supply interruption time exceeds 100 μs and does not exceed 2 s, the functional
condition shall not be lower than level C. After the test, the system functional condition
shall reach level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.9 Open circuit
5.5.2.9.1 Single line open circuit
Test according to 6.5.1.9.1. After the test, the system functional condition shall reach
level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.9.2 Multi-line open circuit
Test according to 6.5.1.9.2. After the test, the system functional condition shall reach
level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.10 Short circuit protection
Test according to 6.5.1.10. After the test, the system functional condition shall reach
level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.11 Insulation resistance
The insulation resistance of the system shall not be less than 10 MΩ. Test in accordance
with 6.5.1.11. After the test, the system functional condition shall reach level A.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.2.12 Reference ground and supply offset
Test in accordance with 6.5.1.12. System functional condition shall not be lower than
level B.
NOTE: For PoC powered systems, the requirements and test methods are determined by negotiation
between the supplier and the purchaser.
5.5.3 Mechanical properties
5.5.3.1 Mechanical vibration
Test in accordance with 6.5.2.1. The system shall not show physical damage during and
after the test, and the functional condition shall reach level A. After the test, the MTF
value shall comply with the requirements in Table 3.
5.5.3.2 Mechanical impact
Test in accordance with 6.5.2.2. The system shall not show physical damage during and
after the test, and the functional status shall reach level A. After the test, the MTF value
shall comply with the requirements in Table 3.
5.5.3.3 Free drop
Test in accordance with 6.5.2.3. No hidden damage is allowed to the system after the
test. Minor damage to the casing is allowed. The functional condition shall reach level
A. The MTF value shall comply with the requirements in Table 3.
5.5.3.4 Gravel impact
Lenses installed outside the vehicle shall be tested in accordance with 6.5.2.4. The lens
shall not be broken after the test (minor damage to the surface coating that does not
affect image quality is allowed). The MTF value shall comply with the provisions of
Table 3, and the system functional condition shall reach level A.
5.5.3.5 Wear resistance of lens
Lenses installed outside the vehicle shall be tested in accordance with 6.5.2.5. The lens
coating is not allowed to fall off after the test. The MTF value shall comply with the
requirements in Table 3. The system functional condition shall reach level A.
5.5.3.6 Pull-off force of wire harness
Test in accordance with 6.5.3.3. The system functional condition shall not be lower than
level B.
5.5.4.5 Temperature cycle
5.5.4.5.1 Temperature cycle with specified rate of change
Test in accordance with 6.5.3.4.1. The system functional condition shall not be lower
than level B.
5.5.4.5.2 Rapid temperature changes with specified transition times
Test in accordance with 6.5.3.4.2. After the test, the system functional condition shall
reach level A.
5.5.4.6 Humidity-heat test
5.5.4.6.1 Humidity-heat cycle
Systems installed in the passenger compartment are tested in accordance with 6.5.3.5.1.
The functional condition shall not be lower than level B. No condensation is allowed
inside the display area.
Systems installed outside the vehicle are not required.
5.5.4.6.2 Temperature/humidity combined cycle
Systems installed outside the vehicle are tested in accordance with 6.5.3.5.2. The
functional condition shall not be lower than level B. No condensation is allowed inside
the display area.
There are no requirements for systems installed in the passenger compartment.
5.5.4.6.3 Steady-state humidity heat
Test in accordance with 6.5.3.5.3. The system functional status shall reach level A
during the last 1 hour of the test and after the test. There shall be no condensation inside
the display area.
5.5.4.7 Ice water shock
Systems installed outside the vehicle shall be tested in accordance with 6.5.3.6. The
system functional condition during and after the test shall reach level A.
There are no requirements for systems installed in the passenger compartment.
5.5.4.8 Salt spray corrosion resistance
5.5.4.8.1 Corrosion
Systems installed outside the vehicle shall be tested in accordance with 6.5.3.7.1. Marks
and labels shall be clearly visible after testing. The functional condition shall reach level
A.
There are no requirements for systems installed in the passenger compartment.
5.5.4.8.2 Leakage and function
Systems installed outside the vehicle shall be tested in accordance with 6.5.3.7.2. The
functional condition shall reach level A during the 4th to 5th hour of each cycle in the
test and after the test. There shall be no salt water entering the shell after the test.
There are no requirements for systems installed in the passenger compartment.
5.5.4.9 Solar radiation
Systems installed outside the vehicle or installed in the passenger compartment in direct
sunlight shall be tested in accordance with 6.5.3.8. After the test, the surface coating
(plating) layer shall not be peeled off, cracked, blistered, etc. (slight discoloration and
discoloration in appearance that does not affect image quality are allowed).
There are no requirements for systems installed in the passenger compartment not
exposed to direct sunlight.
5.5.5 Dustproof and waterproof
5.5.5.1 Dustproof performance
The protection level of systems installed inside the passenger compartment shall
comply with the IP5KX requirements in GB/T 30038-2013. After the test, the functional
level shall reach level A. The protection level of systems installed outside the vehicle
shall comply with the IP6KX regulations in GB/T 30038-2013. After the test, the
functional condition shall reach level A.
5.5.5.2 Waterproof performance
The protection level of systems installed inside the passenger compartment shall
comply with IPX2 in GB/T 30038-2013. After the test, the functional level shall reach
level A. The protection level of systems installed outside the vehicle shall comply with
IPX6K and IPX7 in GB/T 30038-2013. After the test, the functional level shall reach
level A.
5.5.6 Chemical load
Test in accordance with 6.5.5. After the test, there shall be no blistering, cracking,
peeling, rust, or mechanical damage on the surface. The system functional condition
shall reach level A.
The required test objects in 5.4 are the active lighting units of the system. The remaining
required test objects are systems.
6.1.4 Requirements for test darkrooms
The reflectivity of the walls of the test darkroom shall not be greater than 5%. Turn off
all light sources in the test darkroom. The infrared illumination in the darkroom shall
not be greater than 2 μW/cm2.
6.1.5 Test operating mode
6.1 .5.1 Operating mode A
Operating mode A1: DUT is not powered and not connected to connectors and wiring
harnesses.
Operating mode A2: DUT is not powered and connected to connectors and wiring
harnesses.
6.1.5.2 Operating mode B
Operating mode B: DUT is in normal electrical connection. Use equipment rated
voltage. The system functions normally.
6.2 Appearance and structural inspection
Set the DUT to operating mode A1. Under 800lx±80lx lighting conditions, conduct
visual inspection and hand feeling inspection with a viewing distance of about 300 mm.
6.3 Image performance test
6.3.1 Frame rate test
Set the DUT to operating mode B. Test the output video signal with video analysis
equipment.
6.3.2 Effective pixel test
Set the DUT to operating mode B. Test the output video signal with video analysis
equipment.
6.3.3 MTF value test
6.3.3.1 Type I system
In the test darkroom, arrange the test equipment and charts as shown in Figure 1. Use
collimators to test. See Annex D for the chart format and parallel light tube layout plan.
The wavelength of the built-in fill light of the parallel light tube shall be consistent with
the DUT's photosensitive wavelength. The uniformity of the light-emitting surface s...