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Mute - TU Munich experimental vehicle

Discussion in 'Electric Vehicles' started by VolkerP, Sep 22, 2011.

  1. VolkerP

    VolkerP EU Model S P-37

    Jul 6, 2011
    Could not find a thread about this car, so I started a new one.


    Translation of German article 21.09.11 - News - Mute: TU München zeigt ihr Elektroauto auf der IAA | heise Autos follows, but you might want to see the complete picture gallery there.

    Mute: TU Munich shows Electric Vehicle at Frankfurt Motor Show

    Two seater reaches 100km with 10kWh battery, thanks to light weight construction

    Frankfurt, Sept 21, 2011 - It's a creeper and a trailblazer at the same time: the Mute, an electric car developed at Technische Universität Munich and under display at Frankfurt Motor Show in hall 4.0 until September, 25th. As the name of this construction might suggest, not all hope is lost that Germany holds its stand in international competition regarding electric mobility.

    Top Speed 120kph (75mph)

    The car accommodates for two passengers and luggage, and it is supposed to be capable of spirited driving - in spite of its rather humble power. To get approval as a light, four-wheeled car in class L7E, the electric motor was limited to 15kW (20hp). Power is supplied by a li-ion battery pack, that is good for a "guaranteed range of at least 100km" (60 miles), according to the creators of the vehicle. The power unit consists of about 1200 single cells and has a total capacity of 10kWh. In case of need, tin-air-batteries can be added for an additional 4kWh. We learned on the motor show, that some kind of "black box" will be integrated into the battery unit, that protocols the life cycle of that energy storing device. If capacity degrades, the unit still holds some value as a used part that, though no longer viable in a car, might well be suited as a stationary energy storage.

    High Level of Safety

    A safety package, consisting of ESP, high-strength passenger cab, and carbon fiber reinforced crash elements protects the occupants.
    At the same time, light weight construction enables the vehicle to run at high efficiency. An aluminum frame with carbon fiber body panels results in a curb weight of 500kg (1000lbs), including batteries. A mule without body panels ran trials this summer, with promising results.

    Torque Vectoring Differential

    A torque vectoring differential on the rear axle helps both with drive dynamics as with efficiency: A small electric motor was integrated into the differential that can be run as motor or as generator. Depending on driving conditions, torque is distributed to the two rear wheels, improving characteristics in turns. In addition to that, the unit serves as generator when decelerating (regenerative braking). When braking in a turn, recuperation is twice as effective as without torque vectoring, according to developers.

    Clean Sheet Approach

    The Mute was developed from the scratch. Preparatory studies suggested future mobility needs, and which customer requirements are crucial for purchase decisions. As an example, all tertiary cockpit controls like navigation and entertainment where integrated into one central touch screen in the dash board. With the correct apps and 3G connectivity and depending on current traffic conditions, one could select between fastest, shortest, or most energy efficient route to destination.

    20 Chairs - 30 Partners from Industry

    The Mute was developed by more than 200 employees and students from 20 chairs of Technische Universität Munich, that are accumulated in a science center "TUM-Energy" dedicated to electric mobility. The Mute prototype was funded by the university and the Bavarian Research Foundation (Bayerische Forschungsstiftung, BFS). Industry partners of the project where C-CON, Gerg RPT and IAV. The vehicle was constructed by R&R KFZ. Intellectual property of the overall concept is held by TU Munich. In total, more than 30 partners from the industry supported the project.

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