US 2003/0141854 A1Published application

Automotive electric power supply apparatus

AssigneeMitsubishi Denki Kabushiki Kaisha

InventorsMasaru Kuribayashi, Yoshihito Asao

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Abstract

Each of the phases of coil in an armature winding of a dynamoelectric machine is constructed so as to have six turns, an inverter has a plurality of element-diode sets, each element-diode set including a pair of switching elements connected in series and diodes connected in parallel to the switching elements, connection points of the switching elements connected in series are connected to the dynamoelectric machine, a control apparatus controls the inverter such that the dynamoelectric machine is driven by supplying electric power from a first battery to the dynamoelectric machine during starting of an engine, and alternator mode electric power generation is performed by the dynamoelectric machine at least in a normal rotational speed region of the engine.

Claims10

Dependent claims

An automotive electric power supply apparatus comprising:

a battery;
an automotive dynamoelectric machine linked to an engine, said automotive dynamoelectric machine being driven by electric power from said battery to start said engine during starting of said engine, and being driven by said engine to generate alternating-current power after said engine has been started;
an inverter having a plurality of element-diode sets, each element-diode set including a pair of switching elements connected in series between positive and negative terminals of said battery and a diode connected in parallel to said switching elements, a connection point of said switching elements connected in series being connected to said automotive dynamoelectric machine;
and
a control apparatus for controlling said inverter such that said automotive dynamoelectric machine is driven by switching said switching elements on and off to supply electric power from said battery to said automotive dynamoelectric machine during said starting of said engine, and said battery is charged by switching said switching elements off to enable said diodes to rectify alternating-current power generated in said automotive dynamoelectric machine into direct-current electric power at equal to or less than a normal rotational speed region of said engine.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/352,875Filed 29 Jan 2003
Priority: JP 2002-02010929 Jan 2002
Published: 31 Jul 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F02N 11/04
Starting of engines by means of electric motors: the motors being associated with current generators
H02K 9/06
Having means for generating a flow of cooling medium: with fans or impellers driven by the machine shaft
H02K 11/05
Rectifiers associated with stationary parts, e.g. stator cores: rectifiers associated with casings, enclosures or brackets
H02K 11/30
Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection: structural…