Zero emission all-wheel drive. With an electric drive system everything changes. Design, space, comfort and sustainability – all completely redefined. In this regard Volkswagen has created with the new all-electric architecture, a structural platform that enables progressive utilisation of all the parameters that arise from the zero-emission drive system. The I.D. CROZZ II illustrates this perfectly. The drive system components – two motors, two gearboxes, the electronics that link everything together and the high-voltage battery – are optimally incorporated into the car's package. This gives the designers and engineers completely new free spaces to work with. The lithium ion battery has an energy capacity of 83 kWh and is housed under the vehicle floor. This creates space, lowers the centre of gravity to sports car levels and ensures ideal weight distribution. The same goes for the two electric motors. They develop a system power of 225 kW and drive their respective axles directly. In most driving situations, the rear axle provides forward propulsion. As soon as vehicle dynamics make it necessary, an 'electric propshaft' redistributes the power of the 4MOTION all-wheel drive between the front and rear axles in fractions of a second. In addition, the I.D. CROZZ can be constantly driven in an all-wheel drive mode, on off-road trails or snow, for instance. At the rear axle, the work is done by a compact 150 kW motor, while at the front there is a 75 kW coaxial drive.
Ideal weight distribution. The power electronics are a crucial link for controlling the flow of high-voltage power between the motors and the battery. The power electronics convert the direct current (DC) stored in the battery into alternating current (AC). Meanwhile, the on-board electronics are supplied with 12 volts via a DC/DC converter. As previously mentioned, an ideal distribution of weight between the two axles has been achieved by integrating the battery centrally within the I.D. CROZZ II and locating the two drive system units at the front and rear. The ratio is 48% (front) to 52% (rear). This gives the I.D. CROZZ II handling properties on the same level as a Golf GTI. A significant role in this is also played by the running gear with its electronic damping control and newly designed multi-link rear suspension and likewise newly developed MacPherson front suspension – each equipped with an integrated drive system and a decoupled subframe. Thanks to this configuration the running gear facilitates an extraordinarily large spread between great handling and top levels of suspension and acoustic comfort. The layout of the front axle and the front end package also result in a very small turning circle of 10.5 metres.