GB20073-2025

Performance and measurement method for braking of motorcycles and mopeds

摩托车和轻便摩托车制动性能要求及试验方法

GB 20073-2025 est une norme nationale chinoise obligatoire à venir : Performance and measurement method for braking of motorcycles and mopeds. Secteur : Électronique. Thème principal : Méthodes d’essai. Entrée en vigueur : 1 juil. 2027.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard specifies the braking performance requirements, test methods, and type approval criteria for motorcycles and mopeds. It is applicable to various categories of L-class vehicles, including L1, L2, L3, L4, and L5. This standard does not apply to vehicles designed for the disabled or off-road motorcycles. Manufacturers must ensure their products comply with these regulations to enter the Chinese market.

Exigences techniques

The standard outlines comprehensive functional and structural requirements for different braking systems, including service brake systems, secondary brake systems, and parking brake systems. It mandates specific configurations based on vehicle category and engine displacement or motor power, such as the mandatory installation of antilock brake systems (ABS) or combined brake systems (CBS) for certain high-performance models. Manufacturers must ensure that friction linings do not contain asbestos and that braking systems meet strict electromagnetic compatibility requirements. Additionally, the standard introduces new requirements for complex electronic vehicle control systems and electric regenerative braking systems. It specifies the conditions under which emergency braking signals must be issued and the functional criteria for ABS deactivation in specific riding modes like off-road or all terrain. Compliance with these advanced electronic control safety concepts is mandatory for modern vehicle type approval. The document also details the performance limits for stopping distance and mean fully developed deceleration (MFDD) under various conditions, such as dry, wet, and high-speed braking scenarios. It sets specific criteria for partial failure tests in split service brake systems and failure tests for power-assisted braking systems.

Méthodes d’essai

The standard prescribes a series of rigorous testing procedures to evaluate braking performance. Key tests include the dry stop braking test (single and simultaneous control actuation), wet stop braking test, and high-speed braking test. It also details specific procedures for ABS performance testing on both high and low friction coefficient surfaces, including wheel lock checks during surface transitions. Furthermore, it outlines methods for determining the peak braking coefficient of the test surface, referencing standards like GB/T 5378 for road test methods.

Questions fréquentes

What products are regulated under GB 20073-2025?

GB 20073-2025 regulates the braking performance and testing methods for motorcycles and mopeds, specifically covering vehicle categories L1 through L5. It excludes off-road motorcycles and vehicles for the disabled.

Are there any updates from the previous version of GB 20073?

Yes, the 2025 version replaces GB 20073-2018 and introduces new requirements for complex electronic vehicle control systems, emergency braking signals, and ABS deactivation functions. It also updates the environmental temperature conditions for testing.

Does the standard require the installation of ABS?

Yes, the standard mandates ABS installation for specific vehicle types based on engine displacement or motor power. For example, internal combustion engine motorcycles with displacement over 150mL must be equipped with an ABS.

The summary above provides a high-level overview of GB 20073-2025. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 20073-2025 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Méthode
CCS: T80
ICS: 43.140
Autorité compétente: Ministry of Industry and Information Technology
Comité technique: National Technical Committee on Automobiles of Standardization Administration of China

Relations

Remplace:GB 20073-2018 (En vigueur)