zhangtianyu
In the domestic car companies are busy developing the engine to meet Euro â…¡, Euro â…¢ emission engines, the foreign companies have been considering the development of Europe and even European â…© â…¦ machine problem. Volkswagen, General Motors, Peugeot / Citroen, Toyota, Cummins and Bosch automotive world famous multinational companies such as contemporary, have launched their latest in the field of automotive engine research and technology programs, for people to describe the prospects for the future development of a car engine.    Volkswagen “to oil as the key link”    ”We are facing the global energy demand growth and mineral oil production decline of contradictions. To ensure the long-term supply of energy vehicles, not only to maximize the existing fuel economy, but also diversify the sources of energy materials, in particular alternative energy and the use of renewable energy. “Volkswagen AG said.    Public vehicle fuel and powertrain technology strategy in the automotive powertrain systems and fuel areas to achieve a gradual transition, from the traditional mineral oil-based fuel powertrain systems and the future transition to synthetic, “sun fuel” match powertrain system.    Volkswagen believes that people relish the hydrogen, only if all technical barriers are overcome, the possible appearance and become the leading vehicle of energy, which at least 20 years or longer, so just pay attention to long-term technology sufficient to ensure the future development of the automotive industry. Therefore, the public company’s engine development strategy including the current, short-to medium-term and medium term of three stages: the current strategy is to further systematic increase the efficiency of the existing powertrain systems; in the short to medium term, combined with development of new alternative energy power systems; In the medium term, the development of carbon dioxide neutral vehicle power systems. Currently, Volkswagen is looking to develop “part of the homogeneous charge combustion system” and “self-ignition gasoline engine”, the aim is to use direct injection engine technology, the advantages of gasoline and diesel emissions and low fuel consumption combined with the advantages, in integration of the new concept of combustion system. The next goal is to develop a synthetic fuel based (including synthetic oil and in turn the development of the “sunshine oil”) basis, and will be gasoline and diesel engine combustion system combines two kinds of complex combustion systems.    Toyota is committed to hybrid    Toyota is committed to the development of hybrid applications, its new PRIUS hybrid car, Toyota not only represents the latest in automotive power research, also revealed Toyota’s development in the direction of automotive power. “A century later, the world’s vehicle population from the current 700 million to 2 billion. 50% of vehicle fuel will be replaced by other energy sources. Vehicle emission and fuel consumption to take advantage of all the technology to solve the hybrid technology One of the solution. “Toyota’s director of eight weight threshold Takehisa, said:” It will power the car and fuel consumption both, become the benchmark for hybrid system. Currently, Toyota has entered the third-generation technology development, to moderate drive to achieve two kinds of power, smooth driving. “octet threshold Takehisa also believes that promoting the popularization of hybrid vehicles, not only requires manufacturers to further reduce manufacturing costs, also need government incentives and preferential policies.    Peugeot / Citroen the powertrain as the lever enterprises to improve efficiency, dedicated to saving the engine, noise, emissions reduction technology innovation, development of small engines, multi-injection technology, particulate filter technology solutions, hybrid technology.    Bosch has been targeting Europe Europe â…© Ⅶ    10 million sets have been produced Bosch common rail system that the engine using the so-called “sunshine fuels”, hydrogen fuel, but also medium-term objectives and long-term goals. Currently, the engines to meet Euro â…¤ to Europe â…¦ emission standard, 100% should be equipped with particulate traps, and to achieve the European â…© emission standards, not only equipped with particulate traps and exhaust gas catalytic converter, it must use the pressure to enlarge Common Rail System, efficient and high quality diesel EGR systems.    To do this, Bosch is developing faster response, smaller diameter nozzle Piezo Common Rail Injector, can reduce engine emissions 20%; and are developing low-resistance Particulate Filter will have more storage capacity, life will reach 200,000 kilometers; Moreover, heavy vehicles are being developed CPN4 high pressure pumps, lubricating oil will abandon entirely the use of diesel lubricant. Because the Bosch that demanding stage in the discharge of any mixture of diesel and oil will have a negative change, brought about serious consequences.    Cummins diesel engine is still love    Cummins personnel, said: “The reason why customers buy Cummins engine products, not only because of its low-emission, more importantly, it has better performance, better fuel economy, higher reliability and durability and less maintenance and lower cost. “    Very stringent emissions regulations in the United States, Cummins engine technology, a lot of improvement, innovation has been to design and manufacture of products with minimal environmental impact. And similar products in 1970 compared to today’s U.S. engine: doubled power, fuel economy increased by 50%, 4 times longer life, reduced costs by 70%, emissions decreased by 90%.    Cummins seems to love the traditional fuel vehicles, which many of the technical improvement and development are carried out around the diesel. Their emissions to meet the Euro â…£, â…¤ EU regulations require motor vehicle diesel engine technology prescribed prescription is: Euro â…¢ technology based on the combined closed crankcase ventilation, automotive diagnostic systems, exhaust after the processor (including Active regeneration particulate filter system, nitrogen oxide adsorber, and selective catalytic converter, SCR) and so on. However, Cummins has developed a high-pressure direct injection natural gas technology to produce the same diesel engine thermal efficiency, and good economy of the new CNG engine.
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