In recent years, in order to implement the "dual carbon" strategy, the country has vigorously developed the new energy transportation industry, and the electric motorcycle industry has also ushered in leapfrog development. Electric motorcycles have the characteristics of low-carbon and environmental protection, convenient access, and intelligent driving control, and have become a trendy choice for people's low-carbon and green travel. According to the survey, the renewal mileage of the daily use environment of electric motorcycles is the focus of general attention of consumers. Especially in the low temperature environment in winter, the attenuation of the battery of electric motorcycles has aggravated consumers' anxiety about the mileage. The Consumer Electrical Appliances Working Committee of the China Consumer Products Quality and Safety Promotion Association (hereinafter referred to as the China Consumers Association Electrical Appliances Committee) organized industry technical forces to carry out relevant research work that affects the low-temperature renewal of electric motorcycles. Recently, CVC Weikai formulated corresponding technical specifications based on the research content and carried out the "Electric motorcycle low temperature (0℃) continuous performance evaluation" activity to test and evaluate the continuous performance of electric motorcycles in low temperature environments. Let consumers understand the ability of electric motorcycles to continue their journey in low-temperature environments more accurately, and provide a reference for consumers to choose suitable electric motorcycles.
my country's current standard GB/T 24157 stipulates the mileage range and residual power indication test methods for electric motorcycles and electric mopeds, but does not provide assessment requirements for the renewal performance of electric motorcycles in low temperature environments. It is understood that choosing 0℃ as the test temperature for the continuous mileage is to meet the daily use scenarios of most consumers in our country. 72% of my country's land area is located in the temperate zone of , warm temperate zone and subtropical areas. The average winter temperature is -1℃~8℃, and my country's population is mainly distributed in the plain areas of the warm temperate zone and subtropical zone. It is indeed a choice for consumers to choose electric motorcycle products with excellent performance in low-temperature environments. The indicators set for this test and evaluation fully evaluate the performance performance of electric motorcycles in low-temperature environments. The details are as follows. Test and evaluation indicators for the three major components of the battery and motor controller :
a) The discharge capacity of the battery at -20℃ should not be less than 73% of the initial capacity,
b) motor efficiency should not be less than 80% after the vehicle speed stabilizes and drops to 30km/h, and
c) The maximum motor efficiency value should not be less than 85%.
The entire vehicle undergoes low temperature 0℃ mileage test and evaluation index: the battery's mileage should be no less than 100km at 0℃.
part certified electric motorcycle product
my country has a vast territory, especially the north and south, and the altitude span is large. At this stage, electric motorcycles are an indispensable and important means of transportation. In order to expand the supply range of the market and improve the supply quality, electric motorcycles will also adapt to more climate and environment types. In the next step, the China Consumer Council Electric Appliance Committee will work with technical organizations and industry enterprises such as the National Key Laboratory of Environmental Adaptation of Industrial Products, relevant testing and certification agencies, and jointly carry out research on research and testing of environmental adaptability of electric motorcycle products, carry out empirical vehicle experiments and research on different typical climate environments such as plateau environments, extreme cold environments, humid and heat environments, and salt spray environments, develop relevant technologies and evaluation standards, and carry out relevant assessment and high-end quality certification activities to help the electric motorcycle industry improve market supply quality, convey objective and fair consumption information to consumers, advocate high-quality low-carbon green travel, and contribute industry strength to the realization of the "dual carbon" goal.
Winter electric motorcycles use TIPS:
①Electric motorcycles should be parked as much as possible to reduce the impact of low temperature on the discharge of power battery ;
②Electric motorcycles should be preheated in advance before driving;
③Develop charging habits as you use to avoid excessive discharge;
④Develop soft winter driving habits to avoid sudden acceleration and deceleration.
Source: Zhongxiaohui
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