When there are 50 people working at high speed on a strange looking, logo-adorned vehicle and one guy sitting low and dry who doesn't do much more than tapping a pedal with his big toe, this guy is the public hero and the whole thing is called Formula 1 racing. These days, even the big toe tapping isn't much of a challenge anymore, since there are so many sensors and actors at work.
E-KERS forms part of the power transmission of F1 cars. It converts kinetic energy won during the breaking process into electricity with the help of an electric motor that also performs as a generator. This power is stored in lithium-ion batteries and fed back into an electric motor in strictly regulated quantities, which in turn boosts the Formula 1 car’s combustion engine during acceleration periods.
Isabellenhütte’s IVT-F integrated current sensor controls the quantity of power supplied by the E-KERS. The Formula 1 umbrella organisation FIA (Fédération Internationale de l’Automobile) aims to ensure in this way that the racing teams will not use E-KERS to break the rules. Isabellenhütte’s measurement segment aims to solidify its position as technological leader in the field of shunt-based current measurement with these products.
Jens Hartmann, Sales Director Measurement at Isabellenhütte Heusler GmbH & Co. KG comments: »We are already working on sensors for the 2013 and 2014 Formula 1 seasons.«
The IVT-F integrates a three-channel measuring system for current, voltage and temperature (I,U,T). Its internal sample rate is 3.5 kHz. The U/I input filter cut-off frequency amounts to fg=350 Hz, the measured value output to 500 Hz. A CAN-Bus interface runs with a data rate of 1 MBit. The manufacturer gives a minimum operating life of 2000 km.