Electricity: motive power systems – Battery-fed motor systems
Patent
1997-12-11
2000-02-01
Salata, Jonathan
Electricity: motive power systems
Battery-fed motor systems
318717, H02P 700
Patent
active
060206969
ABSTRACT:
An inverter main circuit has a DC link capacitor for driving a motor with a power of a battery. An inverter relay is arranged to feed a power of the battery to the inverter main circuit. An auxiliary relay is arranged to feed a power of the battery to the inverter main circuit through a resistor. A main key switch connects the battery to the inverter main circuit through the inverter and auxiliary relays when assuming ON, causing the motor to serve as a generator to charge the DC link capacitor when assuming OFF. When, upon turning the main key switch ON, a speed sensor senses that the rotation speed of the motor is within a predetermined range, a control unit turns the auxiliary relay ON, then the inverter relay ON after shorting armature coils of the motor with the aid of the inverter main circuit and then stops the shorting of the armature coils with the aid of the inverter main circuit.
REFERENCES:
patent: 4479080 (1984-10-01), Lambert
patent: 5412293 (1995-05-01), Minezawa et al.
patent: 5569995 (1996-10-01), Kusaka et al.
patent: 5583406 (1996-12-01), Mutoh et al.
patent: 5723956 (1998-03-01), King et al.
Katada Hiroshi
Matsunaga Yasuo
Ohtsu Eiichi
Takahashi Kazuya
Hitachi , Ltd.
Nissan Motor Co,. Ltd.
Salata Jonathan
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