Hannover Motor Show Europe VI Technology Concerns

At the 64th IAA in 2012 in Hannover, Euro VI technology has become the most interesting topic, whether it is Daimler, Scania, Volvo, Man, Iveco, Renault, etc. Car manufacturers, or manufacturers of engines and auto parts such as Cummins, WABCO, Bosch, Coco, Allison, etc., have demonstrated their latest products and solutions that meet Euro VI emissions at this exhibition.

Safety technology upgrade

The pursuit of the safety performance of commercial vehicles in the European market can be described as a peak, and the safety performance standards of commercial vehicles have also led the trend of the world commercial vehicle market. In this auto show, many automakers such as Daimler, Volvo and others have already invested in active and passive safety technologies such as ACC, LDWS, and AEBS. Use, has greatly improved the vehicle safety factor, reflects the European car "people-oriented" design concept.

Among these active and passive safety technologies, the most notable is AEBS. The system can automatically identify emergency situations, prompt the driver to brake or steer to avoid accidents; if the driver does not take any measures, the system will automatically activate the vehicle braking system to avoid accidents or minimize the impact of the accident. In this auto show, the German Federal Motor Vehicle Authority (KBA) approved the certification of AEBS international regulations to the Daimler Group, and Daimler became the first car manufacturer in Europe to have this certification.

Two new Mercedes-Benz Mercedes-Benz trucks, Actros and Antos, are suitable for AEBS certification due to the installation of the third-generation ABA emergency brake assist system. The system can automatically activate the braking system and achieve complete braking when a static obstacle is detected, which can not only reduce the impact of rear-end collisions, but also even avoid the occurrence of such accidents. These two products become the truck-only products that meet the second phase of the advanced emergency braking system that will take effect in November 2018, allowing customers to experience this powerful safety performance in advance.

In fact, the European Commission launched a series of measures aimed at improving road safety in accordance with its Safety Regulations No. 661/2009/EC as early as 2009, including the mandatory assembly of 3 sets of all new vehicles in stages in Europe. The driver assistance system related to road safety, that is, from November 1, 2014, all new models (including passenger cars, passenger cars, trucks, and trailers) must have ESP or ESC electronic vehicle stability control system (EVSC) installed; The second phase will require all new commercial vehicles to install Lane Departure Warning Systems (LDWS) and Advanced Emergency Braking Systems (AEBS). Including the 9-passenger models with a total vehicle weight greater than 3.5 tons that were approved by the model from November 1, 2013, and all newly registered vehicles after November 1, 2015.

The above systems can help drivers to realize the existence of an emergency situation when the driver's attention is insufficient, thereby reducing the occurrence of traffic accidents; at the same time, they can also reduce the power loss through automatic control.

Energy saving and greener

As Europe will implement the latest Euro VI emission standards at the end of this year, this year's show will see the European VI engine prevailing. Almost all European automakers have exhibited products with Euro VI engines. The Daimler's latest Mercedes-Benz Citaro City Bus is powered by the Euro VI engine (OM 936 or OM 470) for the first time. Although the overall vehicle weight has increased, a large number of technological upgrades also make it an outstanding fuel economy. And low emissions and other characteristics.

Daimler Bus engineers explained that the new Citaro's new fuel-saving recovery system reduces the fuel consumption of the model by an average of 5%. It can store electric energy during the acceleration phase of the vehicle and without fuel, and then in the braking phase of the vehicle, such as fans and lights. The auxiliary system provides energy supply. Daimler also introduced the new Canter Eco Hybrid, which weighs 23% less than a 7.5-ton model compared to a Canter model equipped with a diesel-powered system; its Mercedes-Benz Vito E-CELL electric business Passenger cars actually achieved zero emissions.

The number of exhibited hybrid and pure electric vehicles increased significantly. A commercial vehicle expert in Germany stated that automobile manufacturers generally spare no effort in the development of new energy sources and have a wider range of applications. Pure electric and hybrid power systems are widely used in various models, including Mercedes-Benz, Man, Scania, Volvo, and other well-known car companies produce trucks, buses, and vans. The plug-in hybrid and pure electric vehicles are also frequently seen in various booths, and the trend of hybrid power gradually developing toward cleaner energy is more and more obvious.

Chinese car companies also performed well in emerging hybrid and pure electric commercial vehicles. Xiamen Golden Brigade is not inferior to multinational giants in terms of technology display and actual vehicle experience. Its pioneering use of ultracapacitors is a hybrid energy storage technology route, which has caused the stability of its system and outstanding energy-saving effect to attract international counterparts. extensive attention. Major European hybrid models such as MAN's MAN Lion's City Hybrid and Scania's Ethanol Hybrid Bus, many design ideas coincide with the golden bridging hybrid technology route. This also reflects the progress of China's auto new energy technology level from another perspective.

The models that continue to use traditional energy sources have applied the latest technology on a large scale to meet Euro VI emission standards, ensuring optimal fuel economy while ensuring high transport efficiency. The adoption of the new auxiliary system for safety precautions mentioned earlier not only achieves higher safety performance, but also achieves lower fuel consumption. The Predictive Power System (PPC) is another new safety system that can connect the information of the GPS location's front road conditions with the shifting system so that the vehicle can always operate in the proper gear to achieve the best fuel economy. The data shows that about 90% of the total vehicle cost is generated after the purchase. The fuel cost is an important part of it and the proportion is increasing. In North America, Europe and Japan, the fuel cost accounts for 1/3 of the total cost. The wide application of new auxiliary systems means that the era of high fuel consumption vehicles will come to an end.

In addition, European car manufacturers are also focusing on the development of tail gas after-treatment systems to reduce the loss of energy due to the high drag coefficient; the use of lightweight body technology, a large number of new lightweight materials, such as aluminum, glass steel, sandwich materials, etc. to improve vehicles The economics of operations.

Parts and technology innovation is endless

The technological innovation in the automotive industry is inseparable from the contribution of the core component manufacturers' technological innovation. This auto show is no exception. WABCO, Jiekebo and MEET have all released their flagship technological innovation achievements and attracted the attention of many of the world's top commercial vehicle manufacturers.

As a specialist in the field of brake safety, WABCO, renowned in the commercial vehicle sector, presented its latest technology and research results in terms of both braking safety and improving vehicle operating efficiency, and developed ABS, ECAS, and EBS. And OnGuard, ESC, OnLane and other functions to help improve vehicle safety performance and make innovations in various air circuit components to help improve vehicle fuel efficiency and convey the concepts of fuel economy and environmental protection.

Kekebo highlights two new technologies dedicated to fuel economy: high power brake (HPD) technology and variable valve actuation (VVA) technology. High-power brake technology is a high-powered engine braking technology that enables braking efficiency to reach 150% of positive power. Compared with compression release technology, it can provide more than 2 times more braking power even at low speeds. Variable valve actuation is suitable for all types of valve trains. It can use precise valve actuation and control systems to help vehicles achieve their goals of high performance, low fuel consumption, and low emissions for better fuel efficiency.

MEET demonstrated EGR system products that meet Euro IV emission standards, including EGR pipes, EGR coolers, and EGR modules. The cooling EGR system is widely used in the worlds of Man, Volvo, Mercedes-Benz, etc. as a key technology. The advanced engines of the class have caused special concern for top commercial vehicle manufacturers.

Allison's original uninterrupted power technology increases engine torque through patented Allison torque converter technology, which significantly improves vehicle start-up, handling and overall productivity, and enables uninterrupted shifts during acceleration. Transmission power has solved the imperfection of poor engine power of CNG/LNG vehicles. "Allison's technology avoids the slow response to the throttle that is common in manual or AMT vehicles when shifting gears, thereby improving vehicle braking performance and solving the problem of insufficient braking torque for natural gas engines." LNG truck engineer said.

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