Electronic car ignitor

Abstract

When the voltage of a car battery corrupts, it cannot be able to ignite the car engine. Therefore, a bi-directional power converter stage is developed. It can extract the remaining energy stored in the car battery and store it into a bank of supercapacitor as an alternative power source. Once the voltage of the car battery falls below the rated voltage and the car engine need to be started, the bank of supercapacitor can act as an alternative power source to start the car engine. This power stage consists of a boost power stage and a buck power stage. They are combined together such that bi-directional energy flow is allowed. When a voltage corruption of the car battery is detected, the bank of supercapacitor is charged up from the week battery by the boost power stage and its voltage is regulated at 36V. Under this condition, if the car engine needs to be ignited, the topology of the power stage will turn to the buck mode. The current needed in the starting process of the car engine is then provided by the supercapacitor as the input voltage source and the output voltage supplied to the car engine is regulated at 12V. This power stage can be treated as back up facilities for car engine igniting.