At the just-concluded IAA 2014 (Hanover Commercial Vehicle Show in Germany ), as a trucker, are you still impressed or shocked by a product? Just like Xiao Bian I leaned on the chin and lamented the Mercedes-Benz Future Truck 2025 Smart and advanced? Look at the Mercedes-Benz trucks that make the cockpit as comfortable and free as a home. The driver changes from a driving operator to a transportation manager. After 10 years, the truck will drive autonomously on the European highway. On the other hand, the most direct change brought about by these advanced technologies is the reduction of driver fatigue strength and the improvement of product safety, comfort, economy and reliability. When we look at the domestic commercial vehicle market, our truckers are also trying to build such products. The most intuitive experience is the application of AMT (electronically controlled automatic mechanical transmission). Why AMT has a lot of advantages Why is the market share in the domestic market low? It is not unfamiliar to mention AMT, especially in recent years, the increase in the share of imported trucks in the domestic market, which brings AMT, AT technology (such as Mercedes-Benz EAS gearbox, Volvo I-shift gearbox, Scania Opticruise12 Gearbox, etc.) Let domestic users fully enjoy the beneficial effects of gearbox technology. AMT compared MT (Manual Transmission) has the following four advantages : (1) more convenient operation, AMT intelligent shift, the driver does not need clutch, the driver can save a lot of shift operation, which can focus more on driving, Improve safety. (2) Power is stronger because AMT is a computer to control a robot system to complete the two operations of clutch and gear selection. The shift is more accurate and timely, and effectively improves the driver's power interruption during the manual shift operation. In order to improve vehicle dynamics, it also reduces fuel consumption. It is understood that AMT products can save 3% to 5% of fuel consumption compared with MT. (3) The safety is better. An excellent driver can constantly improve the power and economy of the vehicle by constantly changing gears according to different loads and road conditions. However, one hour can be used for long-distance and multiple-time operations. Driving fatigue, it is inevitable that misuse will occur and even cause an accident. The AMT always imitates the driving of the best drivers, effectively avoiding erroneous operation and making the driving more safe. (4) The transportation cost is reduced. The AMT is controlled by a computer. By matching the engine, it can automatically find a suitable shift timing, thereby avoiding the impact on the engine and the transmission due to the driver's erroneous operation, which is beneficial to the engine. And the increase in the life of the transmission will reduce the cost of vehicle use. At the same time, the technical sensitivity of the driver is also required to be lower. This advantage is particularly useful for large-scale teams. There are many drivers of large teams and the frequency of replacement is faster, while the new driver's driving fuel consumption will be lower than experienced drivers. Increase 20% -30%. Because the technical requirements for the driver are not high, AMT can effectively alleviate this problem. AMT has so many advantages and advantages, but it has not become the mainstream of the current market, and the reason is not single. The technology of imported trucks is good, but the price of hundreds of thousands of millions of mobile phones makes most customers want to sigh. Domestic mainstream truck manufacturers have also long been aware of the prospects of AMT. Taking China National Heavy Duty Truck as an example, as early as in 2005, the research and development of automatic transmissions was put on the agenda. In order to seize market opportunities, China National Heavy Duty Truck Corporation chose a road of innovation and innovation in innovation, and in just three short years, China Heavy Duty Trucks In 2008, Jinan listed and assembled the HOWO A7 heavy-duty truck of the heavy-duty, automated manual (AMT) 16-speed electric transmission developed jointly with WABCO. However, due to vehicle configuration, pre-sales, and after-sales service at that time, it was not comprehensive. Occupying the market, now after many years of technological accumulation, China National Heavy Duty Truck once again brought in brand-new China Heavy Duty Truck Intelligent Manual (AMT) HOWO T7H tractors through a large number of product trials and pre-sales and after-sales service trainings, and has also revamped domestic heavy trucks. The market gains share and continues to grow, leading the domestic heavy truck into the era of automatic shifting. Test ride on China Heavy Truck HOWO -T7H feel qualitative AMT The China Truck Network reporter passed the trial test of the heavy-duty HOWO-T7H tractor that matched the MC11.44-40 engine and equipped with the HW20716AL gearbox, and experienced the AMT model's extraordinary experience with the driver. The gearbox is well-arranged; entering the T7H's spacious cab, heavy-duty AMT can easily become the focus compared to a manual transmission. The HW20716AL tiptronic gearbox equipped with the T7H of China National Heavy Duty Truck has 16 forward gears and 4 reverse gears. With the 440-horsepower MC11 engine, the power output is more stable and smooth. It can be seen that this gearbox clearly and effectively arranges the function buttons and the driver can operate it easily. Heavy-duty truck AMT gearbox is more convenient and reliable than manual transmission driver; after the ignition is started, the vehicle is adjusted to automatic mode A and economy mode E is started. The vehicle ECU calculates the vehicle load and parking conditions and automatically adjusts the starting position of the vehicle. During the test, the vehicle is in an empty load state. The liquid crystal display shows that the vehicle will start at five gears. The gearbox corresponds to this. The clutch pressure plate, the pieces and other parts are all ready to start. More intelligent, convenient and efficient than manual gearboxes. Of course, you can also choose to manually start, just adjust the M / A button, pull up and down the file to select the file you think is appropriate to start. In the case of vehicle load or when more power output is needed, it can be switched to power mode P. At this time, the gearbox will continuously output the power of the engine, and the heavy-duty AMT gearbox model will be more inconvenient than the manual gearbox. More convenient and fuel-efficient. Drivers driving AMT models can concentrate more easily and effectively improve driving safety. After a vehicle starts smoothly in automatic mode, the driver only needs to control the throttle and brake. The AWO of the HOWO-T7H automatically raises and lowers the driver according to the driver's accelerator pedal depth and vehicle operation. AMT is like driving experienced drivers can always capture the best shift timing of the engine's economic speed range, make timely use of the driver's every acceleration and deceleration to make appropriate choices, minimize fuel consumption, and effectively avoid the driver's mistake Operation to reduce the malfunction caused by the gearbox. AMT's power connection is highly efficient, avoiding the loss of the vehicle's operating power; the test vehicle is traveling in the city and encounters many traffic lights and turns, which is also a common road condition for many truck users. If it is a manual gearbox driver, there must be a busy shift of hands and feet to meet the vehicle operating conditions. However, the driver of the AMT HOWO-T7H has no such concerns. You only need to carefully judge the road condition, control the throttle and brake under the foot, the AMT in automatic mode can help you solve everything, and the smooth shifting process is also reduced. Vehicle power loss. It is also more comfortable to improve safety. At the same time, this section of the AMT also has a crawling mode for the start of the ramp and the pit road. When a vehicle encounters large slopes and potholes, the traditional manual transmission driver must meet the power demand through downshifting, but the power of the shifting process will be interrupted, which will seriously affect vehicle dynamics and fuel economy. T7H's AMT quickly and effectively enters the best gear according to the driver's accelerator pedal depth combined with the engine speed. The 440-hp power output is matched with the 16-speed AMT transmission. Power, comfort, safety and fuel economy Should be complete. Through test drive, the AMT (electronically controlled automatic mechanical transmission) of China Heavy Duty Trucks HOWO-T7H made the reporter happy. The entire test ride was comfortable, safe, and economic. It felt that AMT made the truck as easy to drive as a car. In another landmark upgrade of heavy trucks, we saw that China National Heavy Duty Truck has taken advantage of its products, promoted the advancement of AMT development through the implementation of the national IV, led the domestic heavy trucks into the AMT era, and made domestic trucks take important steps in upgrading automation technology. One step.
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China National Heavy Duty Truck HOWO-T7H tractor 
HW20716AL Tiptronic Gearbox 
Driving heavy truck AMT models more convenient and efficient operation 
Heavy truck AMT model power connection is more smooth 
Driving heavy truck AMT models greatly improved safety 