Regeneration of waste energy from tire strain and rapid charging through super-capacitor for electric vehicles

Vehicle tyres lead us to move miles and miles, which faces a lot of heat and stresses all that energy should not go in vain, Peizoelectric materials are materials which have the ability to convert the applied mechanical stress into electrical charge. Our work deals with the conversion of heat and stress of the tyre into an electrical energy by using piezoelectric transducer, rapid collection and storage of electric energy using super-capacitor. For this experimental study, electric bike was taken and its tyres was replaced by regenerative tyre, which is made of two tyres mounted in the same rim inbetween them piezoelectric transducer was placed, its also called as piezoelectric sandwich tyre structure. In the order of 4 columns and 40 rows in the circumference of the inner tyre at about 320 PZT (lead zirconate titanate) for both tyres. The PZT has greater stability and higher operating temperature. In which 4 columns are connected in series and 40 rows are connected in parallel to the centre shaft of the wheel from which the electric current is transformed to carbon brush then to the supercapacitor which can absorb and store the electrical energy faster then to the bridge wave rectifier which converts AC into DC and finally stored in battery. The experiment was performed through long drive on the high way at average speed of 35 km/hr by adopting electrolytic capacitor and super-capacitor in two mode of test run with regenerative tyre. The vehicle fitted with super capacitor charges three times faster than the vehicle with electrolytic capacitor. Our fabricated electric vehicle with normal tyre went upto 51.6km(average for three trials) by replacing it with regenerative tyre went upto 83.2km(average for three trials) which increased efficiency about 61.2%. Electric vehicles fitted with regenerative tyre and super capacitor will create a new revolution in electric vehicles. Peizoelectric materials are pollution less regenerator, hence helping to build a green India.