QC/T 1260-2025 Steering wheel heating device of automobile English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
T
Professional Standard of the People's Republic of China
QC/T 1260-2025
Steering wheel heating device of automobile
汽车转向盘加热装置
(English Translation)
Issue date: 2025-12-17 Implementation date: 2026-07-01
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 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Automotive Steering Wheel Heating Device
1 Scope
This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage requirements for steering wheel heating devices.
This document applies to steering wheel heating devices for category M and N vehicles.
2 Normative References
The contents of the following documents constitute essential provisions of this document through normative reference. For dated references, only the edition corresponding to the date applies. For undated references, the latest edition (including all amendments) applies.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 2423.1 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test A: Cold
GB/T 2423.2 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test B: Dry Heat
GB/T 2423.3 Environmental Testing - Part 2: Test Methods - Test Cab: Damp Heat, Steady State
GB/T 2423.8 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ed: Free Fall
GB/T 2423.22 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test N: Change of Temperature
GB 8410 Flammability of Automotive Interior Materials
GB/T 30512 Requirements for Prohibited Substances in Automobiles
GB 38262 Flammability of Bus Interior Materials
QC/T 563-2014 Technical Requirements and Test Methods for Automotive Steering Wheels
QC/T 29106 Technical Specifications for Automotive Wiring Harnesses
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 steering wheel
Component used by the driver to change and maintain the direction of vehicle travel.
3.2 steering wheel heating device
An electrical heating product assembly installed inside the steering wheel rim that generates heat when powered to raise the surface temperature of the steering wheel rim to a set temperature.
3.3 heating unit
The heating component sub-assembly of the steering wheel heating device, consisting of electrothermal material and substrate material.
3.4 harness
A sub-assembly composed of wires, connectors, terminals, covering materials, etc.
3.5 temperature control unit (TCU)
A control unit used to manage the operating state of the steering wheel heating device under the guidance of bus or physical switch control methods.
3.6 negative temperature coefficient sensor (NTC)
A thermistor element with temperature-response characteristics whose resistance value decreases as temperature increases.
3.7 heating rate
Under specified conditions, the average rate of change of the surface temperature at each measuring point on the steering wheel rim from the first temperature value to the second temperature value.
3.8 saturation temperature
Under specified heating level conditions, the average temperature of each measuring point on the steering wheel rim surface when a dynamic equilibrium state is reached.
3.9 heating homogeneity
The uniformity of temperature between the left and right areas of the steering wheel rim surface when the saturation temperature state is reached.
3.10 steering wheel hands off detection (HOD)
A detection assembly installed inside the steering wheel rim, used to detect whether there is contact between the driver's hand and the steering wheel.
4 Requirements
4.1 General Requirements
4.1.1 At room temperature, the resistance value deviation of the steering wheel heating device shall not exceed ±10% of the design value.
4.1.2 The steering wheel heating device shall be free from defects such as contamination, damage, cracks, and wrinkles.
4.1.3 The steering wheel heating device and its system shall only be activated for operation after the ignition key or preset power-on, and the system operating status shall be displayed.
4.1.4 After installing the steering wheel heating device, the appearance of the steering wheel shall comply with the requirements of QC/T 563-2014, section 4.2.
4.1.5 The steering wheel heating device shall be compatible with the steering wheel hands off detection (HOD) function and shall not affect its operation.
4.1.6 The wiring harness of the steering wheel heating device shall be installed in a non-stressed state and shall comply with the relevant provisions of QC/T 29106.
4.1.7 The prohibited substances in the steering wheel heating device shall comply with the relevant provisions of GB/T 30512.
4.1.8 Temperature range:
Operating temperature range: -40°C to 65°C.
Storage temperature range: -40°C to 90°C.
4.2 Performance Requirements
4.2.1 Flammability Characteristics
The flammability characteristics of steering wheel heating devices for buses shall comply with the provisions of GB 38262. For other types of vehicles, the flammability characteristics shall comply with the provisions of GB 8410.
4.2.2 Insulation Impedance
After testing according to 5.4, the insulation impedance shall be not less than 10.0 MΩ.
4.2.3 Heating Rate
After testing according to 5.5, with heating turned on for 5 minutes, the average temperature of the steering wheel rim surface shall not be lower than 10°C (reference for steering wheels with HOD function). For heated steering wheels using secondary foaming processes or other processes, the average temperature of the steering wheel rim surface after heating is turned on for 5 minutes shall not be lower than 0°C, as shown in Figure 1.
Standard
QC/T 1260-2025 Steering wheel heating device of automobile (English Version)
QC/T 1260-2025 Steering wheel heating device of automobile English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
T
Professional Standard of the People's Republic of China
QC/T 1260-2025
Steering wheel heating device of automobile
汽车转向盘加热装置
(English Translation)
Issue date: 2025-12-17 Implementation date: 2026-07-01
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 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Automotive Steering Wheel Heating Device
1 Scope
This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage requirements for steering wheel heating devices.
This document applies to steering wheel heating devices for category M and N vehicles.
2 Normative References
The contents of the following documents constitute essential provisions of this document through normative reference. For dated references, only the edition corresponding to the date applies. For undated references, the latest edition (including all amendments) applies.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 2423.1 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test A: Cold
GB/T 2423.2 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test B: Dry Heat
GB/T 2423.3 Environmental Testing - Part 2: Test Methods - Test Cab: Damp Heat, Steady State
GB/T 2423.8 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ed: Free Fall
GB/T 2423.22 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test N: Change of Temperature
GB 8410 Flammability of Automotive Interior Materials
GB/T 30512 Requirements for Prohibited Substances in Automobiles
GB 38262 Flammability of Bus Interior Materials
QC/T 563-2014 Technical Requirements and Test Methods for Automotive Steering Wheels
QC/T 29106 Technical Specifications for Automotive Wiring Harnesses
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 steering wheel
Component used by the driver to change and maintain the direction of vehicle travel.
3.2 steering wheel heating device
An electrical heating product assembly installed inside the steering wheel rim that generates heat when powered to raise the surface temperature of the steering wheel rim to a set temperature.
3.3 heating unit
The heating component sub-assembly of the steering wheel heating device, consisting of electrothermal material and substrate material.
3.4 harness
A sub-assembly composed of wires, connectors, terminals, covering materials, etc.
3.5 temperature control unit (TCU)
A control unit used to manage the operating state of the steering wheel heating device under the guidance of bus or physical switch control methods.
3.6 negative temperature coefficient sensor (NTC)
A thermistor element with temperature-response characteristics whose resistance value decreases as temperature increases.
3.7 heating rate
Under specified conditions, the average rate of change of the surface temperature at each measuring point on the steering wheel rim from the first temperature value to the second temperature value.
3.8 saturation temperature
Under specified heating level conditions, the average temperature of each measuring point on the steering wheel rim surface when a dynamic equilibrium state is reached.
3.9 heating homogeneity
The uniformity of temperature between the left and right areas of the steering wheel rim surface when the saturation temperature state is reached.
3.10 steering wheel hands off detection (HOD)
A detection assembly installed inside the steering wheel rim, used to detect whether there is contact between the driver's hand and the steering wheel.
4 Requirements
4.1 General Requirements
4.1.1 At room temperature, the resistance value deviation of the steering wheel heating device shall not exceed ±10% of the design value.
4.1.2 The steering wheel heating device shall be free from defects such as contamination, damage, cracks, and wrinkles.
4.1.3 The steering wheel heating device and its system shall only be activated for operation after the ignition key or preset power-on, and the system operating status shall be displayed.
4.1.4 After installing the steering wheel heating device, the appearance of the steering wheel shall comply with the requirements of QC/T 563-2014, section 4.2.
4.1.5 The steering wheel heating device shall be compatible with the steering wheel hands off detection (HOD) function and shall not affect its operation.
4.1.6 The wiring harness of the steering wheel heating device shall be installed in a non-stressed state and shall comply with the relevant provisions of QC/T 29106.
4.1.7 The prohibited substances in the steering wheel heating device shall comply with the relevant provisions of GB/T 30512.
4.1.8 Temperature range:
Operating temperature range: -40°C to 65°C.
Storage temperature range: -40°C to 90°C.
4.2 Performance Requirements
4.2.1 Flammability Characteristics
The flammability characteristics of steering wheel heating devices for buses shall comply with the provisions of GB 38262. For other types of vehicles, the flammability characteristics shall comply with the provisions of GB 8410.
4.2.2 Insulation Impedance
After testing according to 5.4, the insulation impedance shall be not less than 10.0 MΩ.
4.2.3 Heating Rate
After testing according to 5.5, with heating turned on for 5 minutes, the average temperature of the steering wheel rim surface shall not be lower than 10°C (reference for steering wheels with HOD function). For heated steering wheels using secondary foaming processes or other processes, the average temperature of the steering wheel rim surface after heating is turned on for 5 minutes shall not be lower than 0°C, as shown in Figure 1.
