1.BlueMotion BlueMotionTechnologies art
Introduction:
BlueMotionTechnologies (BlueMotion) technology is based on improved technology as the core .TDI TDI engine is English Turbo- charged Direct Injection Abbreviation, i.e. quot; turbocharged direct injection diesel engine technology quot; means, ldquo; BlueMotionTechnologies art rdquo; through the use of more environmentally friendly engine technology and a more advanced transmission technology, cleaner fuels technology, the exhaust gas treatment more environmentally friendly technologies, the parking cross-art regenerative braking energy recovery achieve better overall performance than ordinary cars, lower fuel consumption and emissions
ldquo; BlueMotionTechnologies art rdquo; coverage comprising three basic techniques have been widely used in products: TSI turbocharged direct injection gasoline engine, TDI turbocharged direct injection diesel engine, the DSG dual-clutch automatic transmission
in addition to gasoline, long Volkswagen We committed to the development of advanced diesel technology, and industry leading level, direct-injection turbo diesel Developed the engine technology that Volkswagen diesel engines not only maintains the impressive power and economy, will greatly reduce the harmful emissions of carbon dioxide and greenhouse gas emissions, and to change people’s traditional noisy diesel engines of high pollution and low power the impression, given the diesel quot; green fuel quot; new historical significance.
Technical Analysis:
Start-Stop (start-stop):
When the vehicle is stationary, the engine idling generation fuel consumption is most pointless of. Start-Stop (start-stop) technology makes this senseless waste of the past. Especially in the frequent start-stop urban traffic, Start-Stop (start-stop) technologySurgery brings fuel efficiency is even more obvious. Its work process is as follows: when the red light, the driver braking the vehicle to a complete stop, the shift into neutral and the clutch pedal is fully released, the control system will automatically turn off the engine. When the green light, the driver depresses the clutch, the engine is automatically restarted. Driver gear is engaged to move. And automatic models much simpler to operate, as long as the driver stops the vehicle brake is fully applied, the engine will automatically turn off. After releasing the brake, the engine will start automatically. No additional driver’s operation, Start-Stop (start-stop) technology was able to achieve up to 0.2 liters per 100 kilometers fuel efficiency.
Recuporation (regenerative braking energy recovery):
consuming excess energy of the vehicle during braking or deceleration, the energy which can be recycled to reduce energy consumption of the vehicle, so that fuel economy further improved. Target Recuporation (regenerative braking energy recovery) technique is to achieve maximum possible recycling otherwise wasted excess energy.
When the driver releases the accelerator pedal or the brake is applied, the deceleration of the vehicle, produces excess energy, regenerative braking energy recovery system to recover excess energy, under the regulation and control of the generator control unit, the the generator voltage is increased, the battery charging system, the excess energy stored in the form of electrical energy recovery. The system also controls the generator voltage decreases when the vehicle acceleration or constant speed, a generator or even fully closed, to reduce the engine load, thereby improving fuel economy. To achieve regenerative braking energy recovery, energy management systems and software of the engine control system to be dedicated to the development and improvement.
Hybrid (Hybrid) and Electric Drive (electric drive):
Volkswagen engineers have not only actively strive to continuously improve the fuel economy of internal combustion engines, but also use electric drive technology, development Hybrid power system. Volkswagen’s hybrid system uses advanced TSI engine combined with an electric drive system, which can reduce fuel consumption up to 15 percentage.
with the Touareg SUV prototype vehicles, Volkswagen has developed a hybrid Touareg V6 TSI Hybrid SUV models. In the model 3.0 V6 TSI supercharged direct injection gasoline engine and a motor as drive system, according to the vehicle running condition, the control system controls the engine or the motor vehicle respectively independently or together to drive the vehicle forward. Motor vehicle starts to drive, upon reaching a speed of more than 50km / h, the vehicle travels in turn driven by an engine, effectively reducing emissions and fuel consumption in urban traffic. Such as hard acceleration or when climbing requires more power, the engine and the electric motor drive together to get strong power. Maximum power of 275 kilowatts, the maximum torque of 550 Nm, from rest to 100 kilometers per hour in just 6.8 seconds, a maximum speed of 240 km. Meanwhile, as the model is also applied to the parking start, regenerative braking energy recovery, low resistance sliding and many techniques help to improve fuel economy, to achieve a one hundred kilometers 9.0 liters of low fuel consumption, carbon dioxide emissions is only 210 g / km, and meet the Euro 5 emission standards in North America and ultra-low emission vehicles.
Development of Volkswagen’s new hybrid technology for the full realization of future electrically driven vehicle as a driving force to achieve zero emissions, and the use of renewable energy, the long-term development, and ultimately gradually get rid of dependence of oil resources, social mobility of sustainable development has taken an important step.
NOx emissions after purification:
to reduce NOx emissions is a major challenge to achieve cleaner diesel emissions encountered. Volkswagen developed the advanced gas purification technology to reduce diesel emissions much further, in particular to reduce NOx emissions up to 90 percentage. The core of this technology is SCRmdash; mdash; selective catalyst converter, and an additive AdBlue. As the name suggests, the selective catalytic converter (SCR) function is ldquo; selectively rdquo; manner, specifically for the conversion of NOx components in the exhaust gas, and converting them into harmless nitrogen and water. Which is a conversion process by means of a water-soluble urea solution AdBlue referred to synthetic complete. AdBlue a concentration of 32.5 percent urea, continuously through a fine screen means in the form of highly atomized is sprayed continuously into the upstream of the selective catalytic converter (SCR) of the exhaust system, mixed with the high temperature exhaust gas, and wherein a chemical reaction occurs and NOx, which is dividedSolutions to nitrogen and water. AdBlue injection quantity is controlled according to the flow of the engine exhaust gases discharged by the engine management system, installed in the selective catalytic converter (SCR) NOx downstream from the sensor provides a signal to the control system. AdBlue is a non-toxic, odorless, biodegradable additives, stored in a reservoir in the secondary. The average consumption of about 0.1 liters per 100 kilometers, can add supplements when performing routine periodic maintenance.