On April 20th, 2017, the world’s leading manufacturer of rail and commercial vehicle brake systems, Knorr-Bremse Group’s commercial vehicle system once again debuted at Shanghai Auto Show, carrying its air supply system, vehicle control system, wheel end system, transmission system components, steering Seven subsystems, including the system, trailer system and after-sales service system, participated in this auto show to showcase their solutions for the leading commercial vehicle industry in all directions. At the same time, they also shared with the exhibitors the latest technology, product information, and industry Hot forward-looking point of view. As China's economy has entered a new normal, the Chinese commercial vehicle market has maintained a good momentum of steady progress, but at the same time the safety and environmental protection of commercial vehicles will also face no small challenge. Xu Baoping, president of Knorr Commercial Vehicle Systems Asia Pacific and China, said: “The seven subsystems and their products introduced by Knorr’s Auto Show are aimed at the hot spots and difficulties of the commercial vehicle industry and provide corresponding solutions. Knorr Group is committed to product innovation and providing quality services in the commercial vehicle sector. It hopes to change the future of the commercial vehicle industry through advanced technologies, and will also make unremitting efforts for the safety and environmental protection of commercial vehicles." Knorrland has always attached great importance to the Chinese market and has always insisted on providing good products and advanced technologies to provide customized system solutions for commercial vehicle manufacturers in China. At this exhibition, Knorr's six solutions have attracted attention. The smart way to drive As one of the main development directions of the vehicle in the future, Knorr has already had the ability to provide relevant systems. For a 6X4 tractor, Knorr offers ABS or EBS braking systems and additional vehicle stability control systems (ESPs). In the field of steering systems we can provide general direction of steering and electronic control systems. In the field of driver assisted control systems, Knorr Inc. can provide cameras and radars with Data Fusion capabilities, such as AEBS (Emergency Brake Control System), LDWS (Lane Departure Alarm Control System), and ACC (Adaptive Cruise Control). System), LKA (Lane Keeping Control System) and other related functions, while Knorr is also the only company currently exhibiting regional unmanned prototype vehicles during the 2016 Hannover station. New energy electric vehicle (bus) solution For the new energy electric vehicles, Knorr can provide solutions higher than the competition. In terms of air supply system, Knorr can provide double-shaft rotary worm electric air compressor, which can realize displacement up to 500L/min (speed 2900), working pressure to 10~15bar, noise as low as 68dB(A) The air handling unit has a low volume of 5mg/m3 and a time switch to control the regeneration. This ensures that the compressed air of the vehicle is clean, thus ensuring the safety of the entire vehicle brake and suspension system. In terms of braking energy recovery, the Brake Blending (brake management function) in the Knorr EBS system can well coordinate the auxiliary brake and friction braking system, thereby effectively guaranteeing and prolonging the service life of the friction plate. In order to further reduce the maintenance cycle of the vehicle, Knorr can provide a full range of disc brakes with a linear wear indicator sensor to match the Knorr EBS system to achieve simultaneous replacement of the friction plates of the vehicle, thereby reducing the number of vehicle maintenance and extended maintenance. cycle. AMT (mechanical automatic transmission) With the change of China’s entire road environment, new regulations require that vehicles are not allowed to overload, and the proportion of high value-added goods passing through roads is increasing, and the speed requirements are getting higher and higher (such as the arrival of the next day or regular arrival). The driver of the vehicle is getting younger and younger, and this generation is more concerned with the comfort of the vehicle, high-tech, intelligence, and the reduction of operating costs. As a result, the requirements for vehicles and vehicle manufacturers increase the level of vehicle intelligence, lower fuel consumption per 100 kilometers, safer vehicles, more reliable performance, and more comfortable driving. In summary, we believe that AMT will be used in large quantities for commercial vehicles in China, and Knorr has many years of experience in AMT R&D matching, and can provide customers with customized actuators and related modules and control software that can fully meet the needs of the Chinese market. . Brake system cleaning solution for compressed air energy As the core supplier of the air supply system, Knorr's system ensures the compressed air of the brake system is clean. Among them, the air compressor adopts its unique structure of water-cooled valve plate, super cylinder liner water-cooled, and strong energy-saving system, and possesses the “three highs and two lows†super performance that other suppliers can hardly reach. Especially for vehicles with large air consumption, the ultra-high displacement can reach 1200L/min, the maximum fuel saving is 180L/year, the reliability is as high as that of similar products, the exhaust temperature is as low as 145°C, and the oleum is low. To 0.2g/hour/cylinder. As a world-leading supplier, Knorr is also committed to the development of environmental protection. The second-generation electric air compressor developed by the company can achieve a displacement of up to 500 L/min (speed 2900) and a working pressure of 10 to 15 bar. The noise is as low as 68dB (A) and the amount of oyster sauce is as low as 5mg/m3. The air handling unit, as part of the air supply system, also features strong oil filtering, high integration, and strong water filtration. The integrated strong oil filter drying cylinder (blue diamond can) on it can achieve 95% oil filtering effect, and can further extend the vehicle maintenance cycle. Its compact and robust design can save 30% of the installation space. The time switch of the Knorr patented structure adopted inside can precisely control the regeneration time and ensure excellent drying effect. At the same time as a highly modular product structure, can provide a wealth of optional features tailored for the user. Front and rear drums compared to the overall configuration When the vehicle is traveling in the mountain area, if the auxiliary brake control system is not installed, the drum brake begins to decay as the brake temperature increases, and the brake absorbs less and less energy. However, since the characteristics of the disc brakes hardly deteriorate after the temperature rises, all drivers only need to slightly depress the brake pedal, and increasing the input pressure of the brake air chamber can ensure the braking performance of the vehicle. However, due to the excessive braking energy that the front axle needs to bear, it may cause premature failure of the front axle brake or excessive wear of the friction surface. At the same time, the driver hardly feels that the main braking energy of the current vehicle comes from the front axle. Disc brakes, which are also dangerous conditions. Therefore, from the Knorr point of view, it is very necessary to use all disc brakes. Moreover, the current European major models have begun to use all disc brakes, and the use of all disc brakes in the North American market is increasing year by year; How to solve the main match, brake force coordination For the Chinese market, the main mainstay match is to implement the case by adjusting the front-end amount of the trailer valve. The requirement is that the brake of each axle should output the braking force according to the corresponding load and the driver's request; and Do a reasonable allocation of the main vehicle and the trailer. At present, Knorr-Bremse has two solutions for the master-coordinated braking force distribution: one for the trailer valve and the other for the coupling force control function in the EBS system. The Knorr Trailer Valves feature a high-loaded, more forward-biased spring, a first-stage balance structure, and an orifice spacer. Therefore, the more the front piston is in the lower limit position under the influence of the more advanced spring, the throttle hole delays the front piston to rise under the action of the air pressure, the pressure quickly reaches the front, the trailer brake response is faster, and it is beneficial to prevent the trailer from pushing the main vehicle. The CFC (Coupling Force Control Function) of Knorr EBS system can set the amount of advance and adjustment characteristics of the trailer control module according to the trailer load conditions during the vehicle matching process; thus ensuring the consistency of the main vehicle and the vehicle during the driving process. There is a brake fold in the middle. For more than one hundred years, the Knorr Group has always used leading technology to continuously improve and optimize the road safety and energy efficiency of commercial vehicles while adhering to the concept of highest quality and striving to promote different uses in the field of rail and commercial vehicles. Modern brake system development, production and maintenance. 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