Introduction
BlueEFFICIENCY is not a single technology, but rather on the Mercedes-Benz collectively own series of environmental technology, the integrated environmental technology, including the optimization of the internal combustion engine, through hybrid technology improve combustion efficiency to achieve zero-emission driving, and many other content via battery and fuel cell vehicles, Mercedes-Benz is also zero emissions strategy step by step description. 85 to 2010 Mercedes-Benz models have been using this technology, including into the country C180K, E200, E260 and other models, these models will be labeled ldquo in the fender; BlueEFFICIENCYrdquo; logo.
BlueEFFICIENCY first step:
to improve the fuel efficiency of diesel locomotive type
there are a lot of new energy vehicles mass production, but it is comprehensive for the environment, the internal combustion engine over a long period of time will still occupy the mainstream forces and root out the potential of the internal combustion engine relative to the current environment more practical. The first step BlueEFFICIENCY strategy would include a plan to make technical improvements of the existing internal combustion engine, as one of the representatives of the CGI engine is mounted on top of the domestic C-class, E-class.
compared to conventional prior Benz supercharged engine, the maximum advantage turbocharged direct injection engine comprising a direct injection system. Regular gasoline engines typically petrol injected into the intake manifold, the gas and air mixture is formed into the cylinder for combustion. Since the injector of the cylinder a certain distance, the concentration of the mixed gas stream and susceptible to the switch valve, so that the theoretical air-fuel ratio is difficult to achieve. Direct injection engine can be a good solution to this problem by sophisticated computer controlled high pressure fuel is injected directly into the cylinder form, to achieve the mixing ratio of air and gasoline, precise control of injection timing, let the mixture burn more fully, to improve energy efficiency.
“engine thermal management systems”
except for engine improvements, BlueEFFICIENCY integrated environmental technology further by reducing the weight, reducing the air resistance, reduce friction , energy management, and a series energy recovery means to reduce energy consumption, improve fuelOil efficiency, the province province, details of the measures is in place.
“Through numerous experiments to modify the design to reduce air resistance.”
BlueEFFICIENCY Step two:
practical use of hybrid technology
before the zero-emission era has not yet arrived, the hybrid is seen as one of the main forms of technology transition. The face of Lexus hybrid offensive, Mercedes-Benz BlueEFFICIENCY strategy, also launched its own hybrid products, and includes the weak mixing, strong mixing and other forms.
At present, the hybrid can buy products only BlueEFFICIENCY S400 HYBRID, S350 based on the development of a lithium-ion battery hybrid.
“hybrid system”
is different from S350, S400 HYBRID has been improved in terms of power transmission, these improvements include a modified 3.5-liter V6 a gasoline engine, a subsidiary electromagnetic motor, a hybrid module is specially equipped 7G-Tronic seven-speed automatic transmission, and control the operation of the necessary electronic components, transformers, and high-voltage lithium-ion battery.
S400 HYBRID compact hybrid module, the disk type motor plays a dual role of starter and generator. Acceleration phase, the motor power assist intervention work, providing the maximum torque of 160Nm for additional 6-cylinder gasoline engine. In braking, the electric motor acts as a generator role, can recover kinetic energy during braking loss.
“lithium ion battery”
S400 HYBRID hybrid module further comprises a ECO automatic start-stop system. When the vehicle is coasting to stop no more than 15 km / h speed (for example, before encountering traffic lights stop), automatic start-stop system will automatically turn off the engine until the vehicle started again. Once the driver releases the brake pedal or the accelerator pedal, the motor is immediately restartedMoving engine.
Since mild hybrid, the motor power alone is not sufficient to drive the vehicle, the battery capacity is very limited, only a hybrid module plays the role of the auxiliary drive. Perhaps it is the compression function, the volume of the battery system has been well controlled, the additional weight of the overall system is only 75 kilograms, from the S400 HYBRID the price point of view, this hybrid system can also make people Gladly accepted.
“S500 PLUG-IN plug-in hybrid”
overseas, has released the Mercedes-Benz hybrid models also include plug-in hybrid and diesel hybrid which hybrid version S500 is employed plug-in hybrid. In the driving battery, the hybrid vehicle can travel S500 in the case of complete electrical drive 30 km, the standard fuel consumption is only 3.2L / 100km, CO2 emissions of 74g / km. While eating less, but under the action of V6 gasoline direct injection engine, the hybrid module, S 500 did not shrink properties of the hybrid vehicle, which 0-100km / h acceleration time of just 5.5s!
The hybrid car is not simply a patent, diesel fuel having a high inherent properties with the help of hybrid technology, it is easier to obtain a good fuel efficiency.
As a representative of the Mercedes-Benz diesel hybrid models, E 300 BLUETEC HYBRID hybrid module equipped with 2.2L four-cylinder diesel engine, fuel consumption is only 4.1 L hundred kilometers, and it is mounted electric motor It can make it to rely on pure electricity with zero emissions driving.