December 17, 2019, the global market of short roots transportation and service company on the 9th class robot robot new conference held in Beijing China, announced two new two electric cars, Nine are the national standard of electric vehicles C series and hit the young and stylish electric scooter Nine electric E series. In addition, the conference Nine robot also announced two versions of the concept of electric motorcycles, which are equipped with remote control function and self-Nine T and electric maximum speed balancing functions of up to 200km / h of electric motorcycles super Segway Apex car.
1, the new national standard has brought opportunities and challenges facing the industry reshuffle Nine robot:
According to statistics, two electric cars in China as one of the main short-traffic travel tool, every day 700 million short trips to assume the task. Before the implementation of the new national standard before, due to the lack of standards in the electric bicycle industry, there is no uniform product specifications, resulting in the flourishing industry of products, product quality and performance is uneven. April 15, 2019, “Electric bicycle safety technical specifications” (GB17761-2018) (referred to as the new national standard) began to implement, enforce some provisions of the original text was changed to mandatory, increasing the tamper-proof, fire resistance, flame retardancy, Charger protection and other technical indicators, adjust and improve the speed limit, the quality of vehicle, foot riding ability and other technical indicators, thus avoiding the use of two electric cars consumers process due to the product itself, the problem of unnecessary security issues.
For a long time, because the electric bike market many brands, homogeneity, less product differentiation, resulting in fierce competition in the industry, new players to join existing. With the new national standard embodiment, the electric bicycle conventional wisdom, is divided GB electric bicycles and motorcycles (vehicles belonging to the category). According to incomplete statistics, before the new national standard, the market is selling 80 percentage two electric cars do not belong to the national standard of electric vehicles. After the formal implementation of the new national standard, these two electric cars will be allowed to continue to sell, and consumers have purchased such products, should be completed within the national standard of electric vehicles GB for two years to change jobs. Needless to say, a change in the industry has come. On the other hand, the national standard for two years; on the one hand, there is no qualification of two electric cars motorcycle manufacturers will have to transition GB production of electric vehicles, or face shutdown, Non-national standard electric motorcycle will no longer be able to legally hit the road, a large number of consumers will be necessary to re-purchase the national standard of electric vehicles. The change in the industry, not only is a major positive for the perfect production qualified enterprises, but also so that we come to the starting line of this national standard electric car re-start, to bring players a new opportunity. In this regard, Nine robot Chairman & CEO Paul high peaks convinced: “We just mentioned a point of view, I hope the opportunity to produce a relatively large jump in an industry when we entered we chose the all-electric car industry. because we found the auto industry from the original stage fuel vehicles to electric car stage, it has been very successful, very successful, and I think the same thing will happen in the whole electric vehicle industry, also in the field of two electric cars, but also occur the same thing. Why? because this area in China is probably more than three thousand million, at the same time, we found that as the European and Southeast Asian market at the time of fast start, the global flow is very large. Times function machine to machine intelligence transformation , in fact, has come, this is the environment. Also another thing you just mentioned, there is a new Chinese national standard, this thing for manufacturers like us, selling every car to have developed, and we hope in the industry the transition time to enter, just the introduction of a new national standard for us is a very big positive. “
and electric cars, Pool as a proportion of the cost and uncertainty of the largest security core component of its safety and reliability of the consumer is closely related to the life and property safety. Especially because some manufacturers of lead-acid battery design oversight, and consumer non-standard use, causing a large number of fires. Fire department also repeatedly to the consumer battery electric bicycle remind, battery safety issues visible electric bicycle should not be underestimated. With the implementation of the new national standard and mandatory 3C certification, new products in the market, consumers have been difficult to see the two lead-acid battery equipped electric vehicle products. According to Beijing issued before and after the implementation of new regulations electric bicycle catalog, 280 paragraph two electric cars are all equipped with lithium batteries. In the previous installment catalog of more than 30, no more than there was only one thousandth of product use lead-acid batteries.
Information Analysis with new energy when the battery is mounted 18650NC Nine E100 electric vehicle before launch for evaluation, using a thermal imaging system for analysis at the temperature at which the battery charging 220V. Test results show that the surface temperature of the battery25 ~ 26 ℃. 18650NC battery electric vehicles in use, there is a weak charge-discharge efficiency issues. This equipped with BMS battery management system for electric cars Nine, with active equalization charging.
power battery thermal management strategies
After the conference the new energy network intelligence analysis of Nine robot Chairman & CEO Paul high peaks and Mr. Wang Ye, president of Nine on Nine robot electric vehicles and electricity during the charging process the control range of the temperature difference of the core were questions.
Wang Ye, president, said: “very professional, we adopt the 18650NC battery, high-power lithium batteries, we use the battery ratio exceeds the ratio of maximum power use, high-rate just to reduce heat, and this purpose is in order to live longer and safer battery charging fever is a security risk. we designed a battery on top of an active strategy duct, when traveling natural wind can take away a lot of heat. in the winter low temperature is the policy of the curve, aluminum , our strategy is this, does not allow charging the battery temperature is below zero, the temperature rises to above freezing gradually start charging, different temperatures will set the charge current limit. For example, at fifty degrees the temperature can reach a maximum charging current but only five degrees, this time charging current to one or one-fifth of the charging current is very normal, very little current charging.
we put eight in the battery or ten my impression six temperature monitoring sensor, by the position sensors located in different inside the battery, the battery to monitor different parts of Poor, if large temperature difference, we will open the first group of products. While second internal charging, the charging current of each group will be adjusted so that the current will be balanced, or if the temperature difference still exists, then we might further reduce or cut off the charging current for a module, this brought harm is to make charging slower, but the benefit is a longer battery life. indeed there will be some gaps, but it is the view of two electric cars, there is no way to use the car technology, there is no way the use of heating technology, so in fact there is some curve. Fortunately, because the battery is only about ten kilograms, carry home charging its temperature can rise quickly, but still should be able to charge temperatures. “
Meanwhile, the life question, Mr. chairman and CEO robot Nine high Lufeng added: “The first thing we have so far, we also mentionedWe are the world’s largest companies use batteries, this is no doubt things we Lithium is the world’s leading position. The second thing we have from 2012 to now, our most important industry, which is a word we do not vacuity, not only vacuity, in some places we are more conservative, but we mark how much battery life is not reached it is not possible, but many people will feel that you balance the car at the time requirement is 85 kg or less people ride, and now I’m 210 pounds, I rode as no problem in this regard we have inside themselves from the wake of the way, we do not virtual target company. “
at the time of charging, the actual reaction of the internal battery is a lithium ion to the negative power polymerization six carbon atoms trapping a lithium ion. Lithium ions easily formed on the negative electrode sheet at a low temperature below 0 ℃ lithium crystals, so-called “lithium Analysis.” lithium crystal deposition can pierce the septum cause the battery to short circuit and damage the battery or even cause a fire exists .BMS battery management system can be significantly reduced due to the temperature resulting in battery safety hazard unsuitable .
in fact, Nine robot (including its acquisition of the Segway company), for short-distance trips electric products electric drive system has long been the technical reserves compared to the company’s previously announced Nine balance of the car, meters home electric scooters, skateboards Nine cars and other products, electric bicycles nothing more than to change the pedal form and driving position, in essence, the power system, including the use of 18650NC power battery, has a strong technical reserves. I believe that the seemingly Nine robot has entered a new field, from the nature of the technical point of view, but the adjustment on the basis of the original product The external form of a vehicle, consumers are looking for the electric drive system and battery safety and other issues, we have passed technical validation of hundreds of thousands of times.
2, from the Chinese national standard specification new electric car to see Nine leading global motorized two-wheelers:
as the 9th robot chairman and CEO Paul high peak, said: “we chose the all-electric car industry, because we found the auto industry from the original fuel vehicles to electric stage car stage, has been very successful, very successful, and I think the same thing will happen in the whole electric vehicle industry, also in the field of two electric cars, the same thing happened. “Indeed, global motorized vehicles for two-wheeled electric vehicle development has played a reference. Since the two electric carsCycling is an alternative to the use of such vehicles consumers have focused on the economy and short commuting distance of the two properties. While China’s large population base case, there are more consumers meet the above two characteristics, so China’s electric bike promotion is much earlier than the promotion of electric vehicles. Prior to the implementation of the new national standard electric bike market, more like the late 19th century, the first stage of development of electric vehicles, electric vehicles commonly used wound lead-acid batteries, fuel sales is twice the car. After the introduction of the new national standard, electric bicycle market gradually standardized, the launch of the product can be more responsive to people to use in different environments.
To be continued