公开(公告)号：US20220195972A1

公开(公告)日：2022-06-23

申请号：US17371636

申请日：2021-07-09

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hung-Hsing CHIANG ,  Chin-Hao CHEN ,  Cheng-Chung LI

IPC: F02N11/04 ,  F02N11/08

Abstract: A method of starting an integrated starter generator drives a starter generator without using a rotor position sensor to start an engine. The method includes the following steps of: (a) applying a first drive current with a first frequency and a first amplitude to drive the starter generator to reversely rotate in a speed open-loop control mode, and acquiring a first load information according to a drive voltage and the first drive current of the starter generator, (b) confirming whether the first load information meets a heavy load condition, (c) stopping reversely rotating the starter generator when the first load information meets the heavy load condition, and (d) forwardly rotating the starter generator to drive the engine to start.

公开(公告)号：US20220131487A1

公开(公告)日：2022-04-28

申请号：US17353164

申请日：2021-06-21

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chin-Hao CHEN ,  Cheng-Chung LI ,  Hung-Hsing CHIANG ,  Chieh-Yu CHEN

IPC: H02P9/08 ,  H02P9/02 ,  H02P9/00

Abstract: A generator control system is coupled to a motor generator. The system includes a DC port, a first switch unit, a DC bus, a first power conversion circuit, a second power conversion circuit, and a second switch unit. The first power conversion circuit has a first side coupled to the DC bus and a second side coupled to the first switch unit. The second power conversion circuit has a first side coupled to the DC bus and a second side coupled to the motor generator. One end of the second switch unit is coupled to the first power conversion circuit and the first switch unit, and the other end of the second switch unit is coupled to the DC port.