VinBus Ecology Transport Services Limited Liability Company has opened and put into operation the first smart electric bus in Vietnam. The first electric bus lines will operate in Vinhomes Ocean Park (Gia Lam) and connect with the city’s public passenger transport system in the coming time.
VinBus is an electric bus model manufactured and assembled by VinFast at the Automobile Manufacture Complex in Hai Phong, combining many modern technologies with the smartest and safest features according to the strategy of current VinFasts smart electric bus series.
As smart electric buses, VinBus provides passengers with an outstanding comfort and safe experience. Buses are equipped with the automatic system that controls the drivers behaviour and warns unsafe dangers; automatic lowering mode of the bodywork suitable for the elderly, children, disabled persons, pregnant women; Electronic board announces the upcoming stop; Free WiFi, USB charging port, entertainment monitor and security camera system and itinerary control, turning back alarm, parking monitoring
VinBus owns a battery capacity of 281 kWh, capable of moving up to 220 – 260km. Buses are fully charged after only 2 hours at VinBuss 150kW fast charging station system with the worlds leading charging technology provided by StarCharge.
All buses of VinBus will be managed and operated intelligently through centralized monitoring, charging, safety inspection, maintenance, repair, and automatic cleaning at Depot stations scientifically arranged according to VinBus primary lines. The construction standard of the Depot stations is on a campus of more than 1 hectare, the roof equipped with solar panels, ensuring energy supply for Depot activities, contributing to reducing the pressure load of the power source for the national power system, environmental protection.
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The iglidur I6 gears from the 3D printer for car racing of the “Youth Discovers Technology” (Jugend entdeckt Technik – JET) challenge
Electromobility is a crucial topic of the future. For Germany to be in the pole position, it is important to inspire young minds to take up scientific and engineering professions. Towards this purpose, the annual JET Challenge takes place at the IdeenExpo in Hanover. Students are given the task of building a fast, tough and energy-efficient racing car from a standard, remote-controlled car with a limited budget. Wear-resistant 3D-printed gears from igus made from the high-performance plastic iglidur I6 helped in this endeavour.
Build a fast, energy-saving racing car from an ordinary, remote-controlled car and overtake all other teams in a race – that’s the goal of the “Youth Discovers Technology” (Jugend entdeckt Technik – JET) Challenge, organised by the Society of German Engineers (Verein Deutscher Ingenieure – VDI) and the University of Hanover (Hochschule Hannover – HSH). As with the renowned models, the key factor is not speed alone, but also energy efficiency. In June 2019, visitors to the IdeenExpo can see the JET Challenge in action at the HSH trade fair stand. 25 teams compete for victory with their racing cars on a 1:10 scale on a 20-metre race track. The rules are strict. Available to each team is a budget of just 50 euros. Apart from battery, motor and speed controller, all components must be purchased, developed or built by yourself.
The teams are currently preparing for the next IdeenExpo. Students of the Eugen Reintjes vocational school are relying on a wear-resistant and tough gear transmission to enhance the performance of their race car. The biggest difficulty with this gearbox was the gear procurement. Due to the small budget, the students couldn’t afford big innovations. Finally, they found what they were looking for at the motion plastics specialist igus in Cologne: cost-effective, low-wear gears from the SLS printer. After a simple online configuration, the gears were printed and provided, made from the high-performance plastic iglidur I6.
Laboratory tests prove that the material I6 is significantly tougher than other plastics. In an experiment at our in-house test laboratory, the engineers tested gears made of polyoxymethylene (POM) and iglidur I6 at 12 revolutions per minute and loaded with 5Nm. A machined gear made of POM failed after 621,000 revolutions, while iglidur I6 was still in very good condition after one million revolutions. Thus, the team does not have to worry about potential failures. The gears in the racing car have already successfully completed an initial test run. The car is energy efficient and still reaches the top speed of 60km/h.
Innovative projects such as the race car gears for the JET Challenge are supported by igus as part of the young engineers support. The initiative supports young pupils, students and inventors in the development and execution of their technical projects. Further information on yes can be found at http://www.igus.sg/yes.
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Marposs continues to enhance and upgrade its measurement and inspection solutions to ensure complete monitoring of the production processes of EV components.
Marposs offers different solutions for the measurement and control of electric vehicles
For almost 70 years, Marposs has been working side by side with customers to guarantee quality control in the mass production processes. The wide range of technologies and products available, together with a worldwide presence, have made Marposs the ideal partner for OEMs, first and second tiers, as well as machine tool makers operating in the automotive industry.
In times of great changes, Marposs is taking up the challenge to stay a strong reference for the automotive market in the e-mobility era. The traditional product lines are integrated with new technologies to provide a mix of gauging, inspection and testing solutions that ensure the complete monitoring of the production process of the main electric vehicle (EV) components. Marposs offers a full range of solutions for the control and optimisation of the various manufacturing steps, the quality control of individual components, up to the final assembly operations and functional check of any assembled system.
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Traditional sensing, probing and in-process gauging solutions for process control during machining, turning, milling, and grinding operations are combined with thermographic analysis systems for process control during die-casting operations, and machine vision techniques to detect defects and porosity on machined sealing surfaces.
Consolidated techniques for monitoring of cutting and stamping operations are implemented in EV optic for process control in the production of rotors stack and stators’ sheet metal, or in the manufacturing of rigid battery cell housing.
Non-contact gauging products based on confocal or interferometric technologies are applied for process control in the production of metallic and non-metallic thin films, typically used in the manufacturing of anodes and cathodes, as well as in quality control of multi-layer pouch battery cover films.
The battery trays provide the structural support of the car itself and must be leak proof to avoid the entry of water from the outside in all conditions.
The wide range of Opto and Flex machines for flexible shaft measurement is enriched with solutions that integrate different technologies to control a greater range of components; from traditional crank-, cam- and gear- shaft, up to rotor-shaft and complete rotors. The product range of optical gauges is enriched with non-contact measuring solutions dedicated to the analysis of shape and size on other critical components such as hairpins.
Automatic assembly operations of electro-mechanical components, such as battery chargers and power electronics are combined with measurement and test systems, up to the complete end-of-line functional verification.
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Thanks to collaborations with companies specialising in the sector, Marposs can today offer a complete range of products and applications dedicated to the execution of functional tests on electric motors and their components. The use of advanced techniques such as insulation tests with partial discharge method on stators, in association with more consolidated methodologies such as SURGE and HI-POT test, ensure the possibility of detecting also the presence of latent defects that could generate failures during use, and therefore guarantee compliance with the highest quality standards that are required for the use of electric motors in the automotive sector.
The synergistic contribution of other companies of the group, with specific skills in the automation sector, allows then to transfer these controls from laboratory environments to mass production, with the in-line integration of automatic machines for the execution of End-of-Line testing, both on rotors and on stators and finished electric motors.
Last but not least, the strong experience in leak testing applications, integrating different technologies, always guarantees the selection of the best solution for one of the most crucial controls in the manufacturing of all components of an electrical powertrain, from battery cells to modules and packs, up to electric motors, power electronics and related refrigeration circuits.
Performing of leak testing becomes a particularly strategic issue when it must be applied to battery components.
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The verification of the perfect sealing of the battery cells is absolutely fundamental to prevent dangerous leakages of liquid electrolyte, but also to ensure their efficient operation over time, due to the high sensitivity to humidity of the active components in the lithium-ion cells. The extremely low acceptable leakage allowed on the cells requires the use of vacuum chamber techniques, using helium as a tracer gas. Marposs offers a wide range of applications in this area, from fully automatic machines for 100% control in mass production lines, to manual stations for off-line verification of the components declared rejected in the in-line control.
The application of these techniques on the finished cells can be particularly complex due to their total sealing. For this purpose, Marposs has developed new leak testing methods, which do not require the addition of any tracer gas inside the cell.
The leakage check is then equally strategic at the battery pack level, in order to prevent the entry of water and other contaminants, which could cause the short circuit of high voltage components. In this case, although the leakage levels required to ensure compliance with IP specifications are normally higher than the reject limits imposed for the cells, the execution of the test is complicated by the large size of the component to be tested and by its high deformability.
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Marposs is able to offer a complete range of solutions and technologies to choose from, according to the test specifications requested by the customer. From solutions in air (pressure decay or mass flow), moving on to global testing techniques with helium in accumulation chamber or in the vacuum chamber. Helium sniffing solutions are instead used whenever it is necessary to accurately identify the leak point, as for example in repair stations.
Equally important, finally, is the verification of the perfect seal on all the different parts of the refrigeration circuits, on whose efficiency the optimal thermal management of all the components of the battery pack depends.
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In general, the trends in metrology follow those in manufacturing, so the most important trends are the increase of precision, flexibility and full process control. In the automotive sector, the new challenge presented by electromobility is shifting the focus to upgraded leak test controls to protect batteries and electric components from deteriorating conditions. Marposs provides a wide range of metrology solutions and is able to give answers to all above challenges.
IoT, smart factory and industry 4.0 focuses on the same objective: providing every possible information on the manufacturing process to the controller. Marposs provides measuring devices to be fitted on virtually every type of manufacturing line, including cutting and deformation machines, as well as die casting and extrusion lines; those provides electronic information to the machine controller which can be used to improve the manufacturing efficiency. Marposs also provides dedicated softwares to help customers elaborate, manage above data and improve production quality.
Asia is not much different from other part of the Industrial world as described in the first question. Compared with other areas, some countries in Asia have a bigger growth rate in the industrial sector. This makes improved production quality even more critical since it goes in combination with production increase, thus creating a bigger challenge for every player involved.
The answer is much easy: investments! To be able to provide successful solutions and to be an appreciated partner for the manufacturing industry, it is necessary to invest in new technologies, solutions and in human resources to support the growing demand. Marposs has ventured into both paths by investing in both internal R&D and acquiring hi-tech companies providing solutions complementary with our traditional ones, thus increasing our proposal to the market as well as our organisation. Today, Marposs is a group of companies accounting more than 3,500 employees and is present in 80 locations across 25 different countries. In Asia, we are present in China (with more than 700 people and local production site), Japan (since 1970 and with 150 people), South Korea, India, Thailand, Malaysia, Singapore, Taiwan and also Vietnam since 2016, where the market is growing really fast. Almost 50 percent of Marposs sales per year are delivered to Asia.
Really difficult to say, given the multiple uncertainties of these days. For sure, the trend moving towards increase electromobility will contribute to manufacturing challenges in the next few years, changing not only the life of people living in the big towns, but also the industrial paradigms in all sectors relating to automotive. Marposs is also ready to face the challenge, having developed dedicated solutions to improve manufacturing of main EV components such as batteries (modules, packs, trays, etc), drive units and ultra-light chassis components.
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