GB/T 44040-2024
ActiveMeasurement methods for noise emitted by heavy-duty vehicles in multiple driving mode conditions
重型汽车多工况行驶车外噪声测量方法
Application Summary AI generated
This standard specifies measurement methods for evaluating exterior noise emitted by heavy-duty vehicles under various driving conditions, including acceleration, constant speed, and deceleration. It is applied in the Chinese automotive industry for type approval testing and regulatory compliance of trucks, buses, and other heavy-duty vehicles. The standard ensures consistent noise assessment across different operational modes to support environmental noise control and vehicle certification.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.