1 Scope
This standard specifies the measurement of maximum speed of motor vehicles.
This standard is applicable to all motor vehicles except electric vehicles. Combination vehicles may also refer to the provisions of this standard.
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 normative document (including any amendments) applies
GB/T 12428 Laden Mass Calculating Method for Buses
GB/T 12534 Motor Vehicles - General Rules of Road Test Method
3 Term and Definition
For the purposes of this document, the following tem and definition apply.
3.1
Maximum speed
The maximum stable speed the vehicle can maintain according to the specified test method.
4 Test Conditions
4.1 Vehicle conditions
4.1.1 Vehicles shall be clean, and the windows and ventilation devices in passenger compartment shall be shut down, unless otherwise specified.
Foreword I
1 Scope
2 Normative References
3 Term and Definition
4 Test Conditions
5 Test Methods
6 Test Result
Appendix A (Normative) Specification for Determination of Correction Factor for Ring Road
Appendix B (Normative) Calculation Formula for Air Density
Appendix C (Normative) Test Record Sheet for Maximum Speed of Motor Vehicle
