Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2006-03-14
2006-03-14
Masih, Karen (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S805000
Reexamination Certificate
active
07012401
ABSTRACT:
An inverter includes an upper ECU, a communication microcomputer receiving an instruction from the upper ECU, a motor control microcomputer receiving an instruction from the communication microcomputer, a gate driving circuit controlled by the motor control microcomputer, and a switching element driven by the gate driving circuit for converting a direct current of a high-voltage battery into an alternating current to drive a motor. The communications between the upper ECU and the communication microcomputer is performed according to a CAN protocol. The communications between the communication microcomputer and the motor control microcomputer is performed according to a low-speed serial communication protocol. An insulation boundary is defined between the communication microcomputer and the motor control microcomputer to isolate a low-voltage side electric component receiving electric power of the low-voltage battery from a high-voltage side electric component receiving electric power of the high-voltage battery. And, a photo coupler is disposed on the insulation boundary to assure insulation and transmit signals.
REFERENCES:
patent: 5963442 (1999-10-01), Yoshida et al.
patent: 2002/0012216 (2002-01-01), Ohshima
patent: 2002/0121902 (2002-09-01), Suzuki
patent: 2003/0136597 (2003-07-01), Raftari et al.
patent: A 11-189032 (1999-07-01), None
Funahashi Kenji
Ohkouchi Yasuyuki
Denso Corporation
Masih Karen
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