Electric bicycle policy run-in period

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bicycles/">electric bicycle has the advantages of convenient, saves time and effort, energy saving and environmental protection, since launch, by the majority of consumers, the electric b icycle industry boomed, however, because of its safety hazards caused by traffic accidents is increasing year by year, The relevant departments of the state in recent years has been considering how the electric bike to strengthen management. The national Ministry of Public Security, Ministry of Industry and Information Technology, Ministry four ministries jointly issued a document in May this year, around the rectification of the electric bicycle industry, weight over 40 kg of \"excessive\" electric bicycle deadline eliminated more than 20 kilometers per hour. Some cities such as Shenzhen, Dongguan, and Changsha, simply banning electric bikes in the main city road.
Four ministries issued a document imposing a deadline for the elimination of excessive electric bike, exceeding the standard is the electric bicycle over 20 kilometers per hou r and weighs over 40 kg, set this standard is developed under the 1999 General Electric Bicycle technical conditions \"(GB17761). Then, come from the quality and technical analysis, this standard would be the electric bicycle industry, what impact it? Electric bicycle enterprises should actively respond to this speed limit weight limit challenge?
Speed: speed limit 20 km
No technical problems
1999 \"General Electric Bicycle technical conditions\" on electric bicycles with the requirements of the many technical indicators, such as the maximum design speed of not more than 20 km; the quality of the vehicle is not more than 40 kilograms; motor output power greater than 240 watts ; time to continue the mileage charge shall be not less than 25 km, one of the most striking is the speed of this four ministries issued a document separate to speed out the ma ximum speed of not more than 20 kilometers of electric bicycles. Why should the speed limit of 20 km? The relevant departments of the answer given is that the electric bike too fast likely to cause traffic accidents.
The Chinese market, most of the electric bike top speed is around 30 km, of course, more than the speed of km, but the number is relatively small.
The speed limit within the 20 km / h, technical manufacturer, of course without any problems, it is very easy to do, the key is how to make consumers aware of the necessity of the speed limit.
Weight: how to reduce excessive weight?
The electric bicycle\\ s speed to slow down is technically no problem, but the weight you want to restrict some trouble in the 40 kg. It is understood that the weight of electric bicycles on the market mostly in kg between the electric bike about 75 kg more common, more than 90 percent of the electric bike weight over 40 kg. How to reduce excessive vehicle weight electr ic bicycle enterprises are facing a problem.
From a structural point of view, electric bicycles by the body and the battery in order to reduce the weight necessary to start from these two areas. First look at the body, the electric bike mostly with steel, the hardness and strength and ductility of the steel is good, but rather heavy, to reduce the weight of steel thinning, thinning, although the weight will reduce, but the quality of difficult to pass the electric bicycle parts breakage, this is unsafe. In fact the new standards will inevitably stimulate corporate research and development of lighter materials, Lifan Technology Co., Ltd. electric vehicle research and development department is responsible for Tan Bo, the real solution to mitigate the body of the electric bicycle is the use of new materials such as aluminum-magnesium alloy instead of The density of steel, aluminum alloy is about one-th ird of the density of steel, the strength is comparable to high-quality steel, in fact, the aluminum alloy has been widely used in high-speed rail carriages and aircraft, use of natural electric bicycles. So in the case of constant volume, a 23 kg of aluminum-magnesium alloy foot can replace nine kilograms of steel, electric bicycle body weight naturally drop down.
Batteries, electric bike mostly use lead-acid batteries, lead-acid battery is a more mature battery, security and storage capacity are good, but a heavy weight, usually about 28 kg, a range of kilometers, if half of the weight loss , the electric bicycle voyage should reduced by half, so a great impact on the use of vehicles, most people use is simply not enough. To lose weight without shortening the voyage, to be replaced a new battery, the lithium battery is a new type of battery, the same volume, its weight is 1/5 of the lead-acid batteries? 1/6.
If the body of the electric bike is replaced by aluminu m alloy, the original lead-acid batteries replaced the lithium battery will decrease the weight of the electric car a lot, should be able to reach the limit of no more than 40 kg, while the performance there will be no change. But there is one drawback is the price of new materials and new batteries are more expensive, Tan Bo, for example, an ordinary electric bicycle price yuan, the use of alloy to reduce weight, the price will rise, which is the rising cost of 300 yuan, while further The use of lithium batteries, the price would go up 500 yuan, on the whole, the new electric car designed to reduce weight, the price will be expensive about $ 1000.
The price the market is not easy to accept. As the electric bicycle market competition, and a variety of components, costs have been transparent, the same types of cars, sold more than 50 yuan will lose their market, so sales of electric bicycles is difficult to ensure the use of new materials.
In order to reduce weight but also to maintain the performance and price constant, the electric bicycle is still a long way to go, but anyway, the use of new materials and new batteries in one direction, the electric bicycle manufacturers can do is continue to strengthen research and development at the same time strive for policy support and subsidies.