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iSelectra Concept
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  Irmscher iSelectra Concept

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Country of origin:Germany
Introduced in:2011
Introduced at:2011 Geneva Motor Show
Source:Company press release
Last updated:March 07, 2011
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Click here to download printer friendly versionThe i SELECTRA is based on the purist Irmscher 7 Turbo Roadster, but now places the drive train in a more sporting environment, as befits a vehicle with Irmscher DNA. The motor's performance figures display a dynamic driving capability of a standard that are easily comparable with traditional sports car designs. The incorporation of a weight balancing system, similar to that of a mid-engine, together with rear-wheel drive, enhances driving enjoyment considerably.

However, when such dynamic performance is not required, it is also possible to select more economic driving modes. The ability to select the vehicle's drive dimensions underline's Irmscher's skill in integrating a variety of drive concepts into both existing and new vehicle architectures.

Of all the models currently available on the electric automobile market, this 144V DC motor is capable of delivering one of the highest torques. Its power development can be modified by means of the intelligent motor control, enabling the engine to deliver levels of up to 175KW. A short-term torque of 800Nm is available. Particular features of this DC motor are its space-saving construction and relatively affordable price.

A further highlight is the electronic charging management system, including the batteries. Liquid cooling is employed for the batteries and electronic modules when used in racing situations. The latest generation of lithium-iron-phosphate (LiFePo) cells is extremely robust and designed for several thousand charging and discharging cycles. This new battery design has finally overcome one of the weak points of the lead accumulator: the loss of power in cold conditions. The automatic battery charging cycle uses a non-contact method, developed for use in e-mobility applications by Ingo Grothe and the Vahle company.

Depending on the charger capacity, the (liquid-cooled) batteries can theoretically be charged to up to 80% of their total performance in less than 60 minutes. However, the chargers available with i SELECTRA have a total battery charging time of 3-8 hours.To solve the problem of heating the vehicle, the project team has developed an infrared heating system integrated in the windscreen. The advantage of this system compared to standard electric heating (which consumes 1500W) is that the heat is generated exactly where it is needed, directly in front of the driver or front passenger. According to Grothe, this represents an energy saving of 90% compared to normal consumption levels.

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  Article Image gallery (8) Specifications