1. Interpretation of pure electric vehicles noun
pure electric vehicles, also known as battery electric vehicles (Electric battery Vehicle), refers to the advance has been fully charged battery to power an electric motor, the vehicle driven by electric motors, the battery power by an external power source complement, and in line with road traffic vehicles, the requirements of safety regulations. The environmental impact of conventional cars is relatively small, its outlook is widely optimistic.
EV composition
composed of an electric vehicle comprising: an electric drive and control system, the driving force transmission and other mechanical systems, means completion of a given task and the like. Electric drive and control system is the core of electric vehicles, the biggest difference is different from the internal combustion engine vehicles. Electric drive and control system by a speed control unit for driving the motor, and a motor power supply components. Other means of substantially identical electric vehicle internal combustion engine vehicle.
Principle: battery – current – power conditioner – Motor – Powertrain – driving the vehicle with
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pure electric vehicle performance characteristics
today’s pure electric car is pretty good in many ways, sports aspect, Tesla Models, acceleration from 0 to 100km / h km / h in 3.4 seconds, for example, the general car Smart ED 0 to 50km / h is 6.5 seconds, which is mainly due to the performance of the motor, but when used on a large weight-bearing purposes, the use of pure electric vehicles not many, this may be due to the performance and cost of the battery actions. In terms of strengths twist the motor, so the general use torque will not be a problem.
Since the stable torque output of the motor, the engine control is easier than pure electric vehicle traveling more smooth, vibration and noise is small; in general, such need not be required as automobilesAlways shift to ensure an adequate power. E.g. Tesla Models from rest to turn a gear speed only.
Technical features
● high energy conversion efficiency. Fuel cell energy conversion efficiency may be as high as 60 to 80 percentage of 2 to 3 times the internal combustion engine;
● zero emissions, no pollution. Hydrogen and oxygen fuel cell, product water is clean;
● extensive hydrogen fuel source can be obtained from renewable energy sources, is not dependent on fossil fuels.
Representative models: Models Tesla