QC/T 627-2025 Electronic locks device for motor vehicles English, Anglais, Englisch, Inglés, えいご
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ICS
T
Professional Standard of the People's Republic of China
QC/T 627-2025
Replaces QC/T 627-2013
Electronic locks device for motor vehicles
汽车电动门锁装置
(English Translation)
Issue date: 2019-11-11 Implementation date: 2020-04-01
Issued by the Ministry of Industry and Information Technology of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Appendix A (Informative) Electric Door Lock Device Simulated Test Bench
Automotive Electric Door Lock Device
1 Scope
This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for automotive electric door lock devices.
This document applies to electric door lock devices for M-category and N₁-category vehicle doors that rotate about hinge axes, slide translationally, or swing. Electric door lock devices for other vehicle categories may refer to this document for implementation.
2 Normative References
The contents of the following documents become essential provisions of this document through normative reference herein. For dated references, only the edition corresponding to that date applies. For undated references, the latest edition (including all amendments) applies.
GB/T 191 Packaging—Pictorial Marking for Handling of Goods
GB/T 4208-2017 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 10125 Corrosion Tests in Artificial Atmospheres—Salt Spray Tests
GB 15086 Performance Requirements and Test Methods for Vehicle Door Locks and Door Retention Components
GB/T 30512 Requirements for Prohibited Substances in Automobiles
GB 34660 Road Vehicles—Electromagnetic Compatibility Requirements and Test Methods
3 Terms and Definitions
The terms and definitions defined in GB 15086 and the following apply to this document.
3.1 Electronic Door Lock Device
A device with one or more electric door lock functions such as electric/manual locking/unlocking, latching/unlatching, child lock latching/unlatching, etc.
Note: Includes electric actuator(s), locking mechanism(s), unlatching mechanism(s), latching mechanism(s), child lock latching mechanism(s), and striker(s).
3.2 Electric Actuator
A driver using a motor and reducer to drive various mechanisms of the door lock.
3.3 Controller
An electronic module controlling the operation of electrical components such as the electric actuator(s).
3.4 Opening and Closing Cycle
The process during which each actuator or manually driven mechanism of the electric door lock device, under normal working conditions, moves from one end of its stroke to the other and then returns to its initial position while performing its function.
4 Technical Requirements
4.1 Functional Requirements
4.1.1 Each functional mechanism of the electric door lock device shall have both manual and electric control functions.
4.1.2 In the event of electric function failure, the door lock device shall be capable of being opened or closed manually.
4.1.3 When the child protection system is latched and the corresponding door is not open, occupants inside the vehicle, except those in front seats and personnel outside the vehicle, should be unable to deactivate the child lock or open the door locked by the child lock. Other interior occupant positions shall not be able to unlock the child protection system or operate that door lock.
4.1.4 When the electric door lock device has an automatic latching function and is automatically latched, the electric door lock devices on the non-impact side shall be in the unlatched state after a collision test.
4.2 Appearance and Materials
4.2.1 The surfaces of plastic components of the electric door lock device shall be smooth, free of bubbles, and without deformations affecting their use.
4.2.2 Metal components of the electric door lock device shall undergo anti-corrosion treatment or be made from corrosion-resistant materials. The coatings, platings, and chemical treatment layers on metal parts shall be uniform and free of obvious defects.
4.2.3 The prohibited substances in the electric door lock device shall comply with the provisions of GB/T 30512.
4.3 Performance Requirements
4.3.1 Basic Performance
An electric door lock device with a nominal voltage of DC 12V shall be capable of normally performing manual functions and all electric drive functions within an operating voltage range of 9V to 16V, without jamming or abnormal phenomena. An electric door lock device with a nominal voltage of DC 24V shall be capable of normally performing manual functions and all electric drive functions within an operating voltage range of 18V to 32V, without jamming or abnormal phenomena.
4.3.2 Load
The load requirements for the door lock shall comply with the provisions of GB 15086.
4.3.3 High and Low Temperature Storage Resistance
4.3.3.1 After being stored in an 80°C environment for at least 8 hours, the electric door lock device shall immediately undergo basic performance testing and shall comply with the requirements of 4.3.1.
4.3.3.2 After being stored in a -40°C environment for at least 8 hours, the electric door lock device shall immediately undergo basic performance testing and shall comply with the requirements of 4.3.1.
4.3.4 Temperature Change Resistance
The electric door lock device shall undergo a temperature cycling test from -40°C low temperature to 80°C high temperature while inactive. After returning to room temperature, it shall comply with the requirements of 4.3.1.
4.3.5 Overload Strength Resistance
The electric door lock device shall possess overload resistance for each electric function under conditions of high temperature and high voltage. After testing, it shall comply with the requirements of 4.3.1.
4.3.6 Overvoltage Resistance
The electric door lock device shall possess overvoltage resistance. After testing, it shall comply with the requirements of 4.3.1.
4.3.7 Vibration Resistance
The electric door lock device shall withstand sweep frequency vibration tests in the X, Y, and Z directions. After testing, it shall comply with the requirements of 4.3.1.
4.3.8 Insulation Dielectric Strength
Conductive parts within the electric door lock device that are not connected to each other shall withstand a high-voltage withstand test with a (RMS) sinusoidal waveform against the
