Body and the weight of batteries and other electric vehicles is the key design elements. Tesla from the chassis of the same size and Roadster Lotus Motors Elise. Roadster designers can choose aluminum, glass fiber or carbon fiber body panels to do. They are the ultimate choice of carbon fiber, and Elise’s body using a glass fiber. Carbon fiber more expensive, but can save 200 pounds weight.
Next in the lead-acid, nickel-hydride technology awards and lithium-ion inspiron battery in the best choice. Lithium-ion technology eventually win, because the same power, lithium-ion batteries lighter, have higher energy density.
Another decision-making motor is the choice of either DC or exchange. Tesla designed the three-phase AC induction a four-motor, 248 HP output horsepower, torque 0 and 13500 rpm within the framework of the curve is almost flat. The direct-drive motor vehicle in the rear, but also provide reverse torque, or the so-called regenerative braking, thereby further extend the vehicle travelling distance.
The unique two-speed electronic transmission can be manually activated to provide the best possible efficiency. Gearbox with electronic mechanical Biansuchilun me Lock (parking location), the car did not clutch Inspiron 600m battery.
This is the greatest speed up the transmission capacity, but also to achieve a reasonable maximum speed. A car can stall at the rate of about four seconds from 0 to 60 mph, the file can speed超过130 mph.
Roadster’s transmission and power transmission and internal electronic components together to provide people familiar with the driving experience. A file has strong regenerative braking capability, in the deceleration to charge the battery, I feel like low-grade when the engine braking. The file of regenerative braking capacity Shaoruo, I feel like third gear or Sidang. Roadster only need Liangdang, it is because compared with petrol engines Latitude D500 battery, it can speed a broader range of higher output torque.
Power Electronics Module (PEM) is a motor for the air-cooled computer control system (Figure 2), is also an integrated power inverter and fast charging system, it sets inverter, charger and motor controller in 1. This structure will allow regenerative braking energy flows through the charging system into the use of insulated gate bipolar transistors (IGBT) output circuit of PEM.
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