17

2021-08

China's electric buses lead the world trend

The "Electric Bus Operation and Maintenance Series Online Course" organized by the International Federation of Public Transport (UITP) opened. Wang Jian, chief scientific communication expert of China's public transport discipline, gave the first lecture on "Electric Solution for Urban Bus System" (Electric Solution For Urban Bus Networks) to more than 40 students from more than 10 countries, introducing the experience of China's electric buses. Wang Jian's wonderful lecture was highly praised by the students: professional and profound! Under the background that most cities and regions around the world begin to take zero emission environment as their development goal, and more and more city authorities and public transport companies are considering providing comprehensive electric solutions for their urban public bus networks, the International Federation of Public Transport (UITP) College and Shenzhen Bus Group jointly launched the "Electric Bus Operation and Maintenance Series Online Course", which was delivered by Wang Jian, chief scientific communication expert of China's public transport discipline, on the afternoon of March 30, 2021, there were 9 online interactive classes in this online course. More than 40 students from more than 10 countries signed up to participate. Zeng Shuyi, Asia Pacific Executive Director of the International Public Transport Federation, and Ma Zhengyuan, Deputy General Manager of Shenzhen Bus Group, gave welcome speeches before the class. More than 40 participants from more than 10 countries The course title of Mr. Wang Jian is "Electric Solution of Urban Bus System". He summarizes the application status and mainstream models of global electric buses from the background of automobile fuel efficiency standard, greenhouse gas emission source and bus emission standard, Paris climate agreement and policies and regulations, etc, then, the deployment phase of bus electrification solution, the overall design method of electric bus technology and the technology selection based on total cost of ownership are discussed. Mr. Wang Jian's wonderful lecture was highly praised by the students: professional and profound! Wang Jian, Chief Science Communication Expert in Public Transport Mr. Wang Jian first introduced the policy background and urban strategy of introducing electric buses. From the Energy Policy and Conservation Act (EPCA), the Clean Air Act, Greenhouse Gas Regulations and Fuel Economy Standards for Heavy-Duty Engines and Vehicles in the United States to the Emission Certification Directive for Non-Road Mobile Machinery in Europe, and China's "Gasoline Vehicle Idle Speed Pollution Emission Standard", "Diesel Vehicle Free Acceleration Smoke Emission Standard", "Comprehensive Air Pollutant Emission Standard" and other related regulations, and then from the perspective of the "Paris Climate Agreement" countries' self-determined expected contribution, It is pointed out that it is an irreversible trend to transform the current transportation system into sustainable energy and sustainable electric travel. The process of electrification of public transport is irreversible Teacher Wang Jian specially introduced the electrification case of Shenzhen Bus Group. It is the world's largest electric bus operator. After 8 years of accumulation, it took the lead in fully realizing bus electrification in 2018. Its electric bus fleet reached 6053 vehicles. Won the "Outstanding Achievement Award" at the 63rd World Public Transport Conference; shenzhen Bus Group's experience in the fields of bus electrification, intelligent dispatching, bus sharing and driverless driving has established an advanced professional image not only for China, but also for the international public transport industry. Mr. Wang Jian also introduced the products on sale of electric buses in the world. BYD and Yutong buses are undoubtedly the most important manufacturers. China's battery electric buses are far ahead in terms of the number of battery electric buses. China's electric buses adopt wheel-side drive technology in large quantities. European manufacturers have also launched electric buses and started demonstration operation. Mr. Wang Jian compared the bus prices in North America, China, Europe, Latin America and other regions, and analyzed the advantages of bus products in each region, all kinds of electric buses made in China are highly competitive in the world, but it remains to be seen who will take the lead in the development of hydrogen fuel electric buses in the future. Finally, Mr. Wang Jian summed up three basic points: first, the introduction of electric buses is the trend of global public transport development; second, the challenges of deploying electric buses are prepaid costs, operational requirements, procurement, cooperation with the energy industry; third, global electric bus products have adapted to the fleet management needs of public transport.

2021-08-17

China's electric buses lead the world trend

14

2021-08

How many kilometers can a hydrogen fuel cell bus last per 70 MPa of hydrogen energy?

In 2021, with the introduction of plans for the construction of hydrogen energy industrial parks and hydrogenation stations in Zhejiang, Shandong and other provinces, China's hydrogen energy will usher in a new round of development boom. According to the bus network, recently, the State Power Investment Zhongguancun Yanqingyuan Hydrogenation (70 MPa) Station in Yanqing District was completed and put into use. The station is the first hydrogenation station in Beijing with both 35 MPa and 70 MPa hydrogen filling capacity. The technical level and service level of the project not only improve the hydrogen guarantee capacity for Winter Olympics hydrogen fuel vehicles, it also provides more application scenarios for hydrogen energy in the domestic transportation field with demonstration significance. The project started on April 10, 2021, and all the builders of CLP Wisdom (Green Hydrogen Technology) were successfully completed and put into production in just over two months. "In the next step, we will actively cooperate with the demonstration operation of various hydrogen fuel vehicles in the Winter Olympics, explore the application of green hydrogen energy technology, fully participate in the construction of the integrated platform of hydrogen production, storage, transportation and hydrogenation in the Olympic competition area, realize centralized control of green hydrogen energy through intelligent scheduling, and serve Beijing's scientific and technological innovation, show the world the charm of 'zero carbon energy." State Power Investment Beijing Green Hydrogen Technology Development Co., Ltd. Winter Olympics supporting hydrogen production project manager Xing Wei said. From 35 MPa to 70 MPa, Zhongguancun Yanqingyuan Hydrogenation Station has achieved the "four major leaps" of cruising mileage, hydrogen supply capacity of the whole station, hydrogenation safety and intelligence ": Yanqingyuan Hydrogenation Station Realized "Four Leaps" 1. cruising range (hydrogen bus): about 300km(35Mpa) → about 500km(70Mpa) 2. Hydrogen supply capacity of the whole station: 30 buses per day → 60~100 buses (or 200 small and medium buses) per day 3. Hydrogenation safety: manual detection → automatic detection and automatic control 4. Intelligent degree: manual operation → automatic billing, code scanning payment, intelligent scheduling Each filling of 70 MPa of hydrogen energy can support hydrogen energy vehicles to travel about 500 kilometers, and the 70 MPa hydrogenation station can supplement hydrogen energy for 60 to 100 buses or 200 small and medium-sized buses every day. At the same time, the international infrared communication protocol adopted by the 70 MPa hydrogenation station can realize the functions of automatic detection, automatic control, automatic billing, code scanning payment, intelligent scheduling and the like of the hydrogenation process. By the 2022 Beijing Winter Olympic Games, there will be more than 1000 hydrogen energy vehicles in Beijing Yanqing competition area as a means of transportation to provide services for Olympic Organizing Committee officials, athletes and spectators from all over the world, and show the charm of "zero carbon energy" to the world. This will also be the largest hydrogen energy transportation demonstration in the history of the world. Let's wait and see.

2021-08-14

How many kilometers can a hydrogen fuel cell bus last per 70 MPa of hydrogen energy?

27

2021-05

New Flyer and Robotic Research Collaborate on Self-Driving Bus Technology

New Flyer of America and Robotic Research companies develop advanced driver assistance technology (ADAS) and deploy it in heavy-duty bus applications to promote the development of self-driving bus technology.

2021-05-27

New Flyer and Robotic Research Collaborate on Self-Driving Bus Technology

12

2021-05

Body-in-white frame assembly process

As a common means of transportation, automobile is an important product to expand domestic demand. As one of the four assemblies of the vehicle, the body has an important impact on the assembly, safety, ergonomics, economy and perception of the vehicle products.

2021-05-12

Body-in-white frame assembly process

08

2021-05

Focus on Vehicle and Passenger Safety Second China Bus and Bus Technology International Network Forum Successfully Held

On the afternoon of December 3, 2020, the second China Bus and Bus Technology International Network Forum co-sponsored by China Merchants Inspection and Certification (Chongqing) Co., Ltd., Chongqing Vehicle Inspection Institute, and World Bus Expo (Busworld) was successfully held. With the theme of "Seminar on Passenger Vehicle Collision Safety Performance and Occupant Protection-Pushing China's Transport Safety Policies, Standards, and Technologies to the World", this forum attracted more than 35000 people at home and abroad to watch it online. Live the whole process.

2021-05-08

Focus on Vehicle and Passenger Safety Second China Bus and Bus Technology International Network Forum Successfully Held

07

2020-10

Global electric bus penetration will triple in 2025! TA has laid out the era of no subsidy

On September 29, 2020, the third-generation semiconductor vertical integration manufacturing platform "Sanan Integration" and the leading new energy bus company "Jinlong New Energy" signed a strategic cooperation framework agreement in Xiamen, confirming that the two parties will use their respective advantageous resources to jointly promote the prototype trial production and batch application of silicon carbide power devices in new energy bus motor controllers and auxiliary drive controllers. Yang Jian, deputy general manager of Sanan Integration, and Dr. Chen Xiaobing, general manager of Jinlong New Energy, signed a strategic cooperation framework agreement on behalf of both parties. Chen Jianye, general manager of Fujian Automobile Industry Group Corporation, and Wu Wenbin, vice president of Xiamen Jinlong Automobile Group Corporation, attended the signing ceremony. The global penetration rate of pure electric buses will triple by 2025, Unsubsidized era calls for bottom technology innovation According to a study by Wood Mackenzie, a market research firm, the global penetration rate of pure electric buses will triple by 2025 due to the policy support of various countries and the sharp drop in battery costs. At present, China has about 600000 pure electric buses, accounting for 98% of the global market, making it the largest single market in the world. The United States and Europe are also continuously improving the penetration rate of clean buses under the financial support of the federal government and the guidance of EU regulations. The development path of China's new energy vehicles has important reference significance for the global zero emission clean travel. Since 2016, China's pure electric bus promotion subsidy is gradually declining and will officially withdraw in 2022, and the market will return to rationality. At the same time, due to immature technology, the early pure electric bus has reached the end of its life cycle after five years of operation, and a new round of electric bus replacement cycle will be ushered in 2021. In the era of low subsidies or even no subsidies, electric buses using third-generation semiconductor power devices can reduce the energy consumption of electric drives and improve charging efficiency from the underlying architecture, thus further reducing the operating costs of the vehicle life cycle, which is expected to become an important indicator of a new round of electric bus procurement. Silicon carbide material, high efficiency and low consumption, Large-scale manufacturing platforms are still needed to help reduce costs and accelerate penetration. Silicon carbide (SiC) and gallium nitride (GaN) as the representative of the third generation of semiconductor materials, because of its wide band gap characteristics, with silicon (Si) devices can not match the electrical performance. Silicon carbide is about 3 times the forbidden band width of silicon material, can withstand higher temperature and working voltage; silicon carbide material has a higher electron saturation drift rate, so that its switching frequency is higher and the switching loss is smaller. The use of silicon carbide power devices in the "power exchanger, on-board charger and motor controller" of pure electric vehicles: it can effectively reduce the volume of the heat dissipation system; significantly increase the operating frequency to reduce the volume of passive devices and increase the power density; Significantly reduce the energy consumption of the motor controller. In short, it enables electric vehicles to achieve lightweight electrical systems, low-loss fast charging, carry more power and provide longer cruising range. At present, the cost of silicon carbide power devices is still relatively high, but with the global industrialization process and continuous improvement of production capacity, the cost problem will be effectively solved, and it is wise for car companies to invest in R & D and layout in advance. Sanan Integrated Open Manufacturing Platform, Willing to work with more customers in the automotive industry chain to promote electric travel Sanan integrates vertically into the third-generation semiconductor industry chain, providing comprehensive control of product consistency and reliability from crystal growth, substrate processing, epitaxial growth, device design, chip manufacturing to device sealing and testing, as well as perfect failure analysis capabilities. At present, 1200V/650V silicon carbide Schottky diode (MPS structure) and 650V gallium nitride E-HEMT products have been introduced, and 1200V silicon carbide MOSFET products will also be introduced in Q4 in 2020. Sanan Integration actively participated in the "First Test and Verification Project of China's Vehicle Regulation Semiconductor" of the National New Energy Vehicle Technology Innovation Center. Pure electric vehicles equipped with Sanan integrated silicon carbide power devices were tested for laboratory performance, normal temperature test field, high temperature test field and alpine test field respectively according to the testing standards of the automobile industry, showing excellent performance and reliability under different working conditions. In July this year, San'an integrated announced the construction of Changsha silicon carbide manufacturing base, with a total investment of 16 billion yuan and an area of 1000 mu. It is a production base of substrate, epitaxy, chip and packaging industry chain with independent intellectual property rights. When the project is fully completed, the production capacity of silicon carbide power devices will be increased from the current 24000 pieces/year to 360000 pieces/year. Sanan's integrated and open manufacturing platform is willing to work with industry chain partners and new energy vehicle customers to accelerate the conversion of power semiconductors from silicon to silicon carbide. Yang Jian, deputy general manager of Sanan Integration, said that it is a great honor to reach a strategic cooperation framework agreement with Jinlong New Energy, a leading Chinese bus company. We also welcome more global vehicle and parts companies to discuss with San'an the application of third-generation semiconductors at the automotive level to make everyone's travel cleaner and more energy-efficient.

2020-10-07

Global electric bus penetration will triple in 2025! TA has laid out the era of no subsidy
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