Unfortunately, Silvestre is not getting too much attention this year due to the lack of time but there was still some work to do regarding the acceleration: http://dani.foroselectronica.es/silvestre-getting-ready-for-2012-230/
The acceleration graph was quite good but still not as good as it could be. One of the main problems was the DC-DC converter which was unable to provide enough current at stall so we designed a new one and these are the results:
X axis represent time in 4.8 ms units
Compared to the results obtained last year, Silvestre is able to run 1 meter longer in the same time and its top speed is also higher. The price to be paid for this extra power is a higher current consumption which has to be taken into account when choosing the right battery for the competition.
The new DC-DC converter board has to be carefully analyzed and I hope to write a new post about it soon.