Design and assembly of electric hybrid conversion system for scooter

摘要

The presented invention deals with the conversion of a petrol run scooter in to a plug-in hybrid electric scooter. Such a scooter would have two sets of powertrain A.) Existing 2 or 4 stroke IC engine which uses petrol as fuel B.) Electric motor which is operated by battery power The powertrain configuration for this hybrid scooter would be - 1.) Electric BLDC Hub motor mounted in the front wheel and providing a direct drive to the front wheel 2.) IC engine in its existing layout driving the rear wheel through a continuously variable transmission The range of the scooter is improved as a result of the "mile extender" feature of the invention by 90% (per litre per charge basis) on the city test route selected for the test vehicle. Above all there is substantial environmental benefit as the fuel consumed per kilometer of riding the scooter reduces significantly thereby reducing the C02 emissions. The vehicle can also be run in an absolute "zero-pollution" mode when it is being driven purely on battery power by the electric motor thereby reducing the pollution in congested cities and in residential areas. The design of the auxiliary powertrain system of electric motor is such that it gets installed on the scooter with minimum modifications to the frame and body of the existing scooter. This invention helps to convert the existing scooter into low emissions, fuel saving vehicle and hence - i. It increases the life expectancy of the existing vehicle, ii. Provides a cost-effective solution to improve the vehicular emissions from " vehicles that are already on the road and thus making them compliant for stricter emission norms, iii. Helps in conserving the usage of petrol thereby helping in reducing the import bills of fuel for the nation The performance specifications of such PHEV will improve with further advancements in technology of electric powertrain components such as battery, motor, controller, BMS, etc.