Control system for reversible polyphase electrical machine working with vehicle engine, comprises over-excitation of electrical machine and switching to allow storage of energy in a supercapacitor

摘要

During braking a reversible polyphase electrical machine (1) is overexcited by a control unit (20) which also operates MOSFET transistors (T1,T2,T3) to connect the electrical machine to the battery (2) through a DC/DC convertor (4). The higher voltage obtained by over-excitation is used to charge a supercapacitor (9) which stores energy for use on the vehicle electrical system An Independent claim is also included for : Provision of supercapacitor, control unit and electronic switching for the control system