The hybrid dynamical system with combination of electric motors and advanced internal combustion engine has become a new green wave sweeping across the automotive industry. Currently, almost every car manufacturers are sparing no effort in the development and update of more efficient hybrid dynamical system. Recently, the Audi exhibits the A5 e-tron quattro plug-in hybrid engine technology.
The unique place of Audi A5 e-tron plug-in hybrid system is that hybrid systems equal to two axles and it achieves four-wheel drive. That is to say, it not only provides excellent economy efficiency but also offers higher stability. It is not surprising in a highly competitive market, because almost every company has its own unique technology. For example, the PSA Group in France focuses on the development of diesel hybrid engine.
Of course, the appearance of the A5 e-tron quattro Audi plug-in hybrid is just a technological display, and it will be applied in the Audi’s full line hybrid vehicles. The power system of Audi A5 engine cabin is composed of 2.0L TFSI turbo engine with a maximum power of 211 hp and maximum torque output of 350Nm and electric motor with 45-horsepower. The engine output of the engine and electric motor will be transferred to the lightweight four-speed automatic transmission through dry clutch to drive the front wheels. The back wheels are driven by two electric motors with 81 horsepower single output and single motor torque output 287Nm.
The motors of rear axle only work to drive back wheels when the vehicle suddenly accelerates speed or the front wheels slip. Under normal circumstances, these two motors play the role of recovering braking force. The supply of whole energy also includes a management system which can use home power to charge electricity. After charge, the car could be driven 63km only depending on electricity and the maximum speed could reach 100km/h. in addition, the weight added by battery could be offset by the light weight aluminum and carbon fiber material of the car body.
As it is mentioned above, this car A5 e-tron Quattro is just a technology demonstration and the products will be officially released later this year.
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