US 7,635,039 B2 · Series hybrid electric vehicle

Abstract

There is provided a technique for improving the efficiency of a generation system of a series hybrid electric vehicle The series hybrid electric vehicle is composed of: an engine; an n-phase generator driven by the engine; a rectifier generating a DC voltage from an n-phase AC voltage received from the n-phase generator; a battery charged with the DC voltage generated; a motor driving drive wheels; an inverter driving the motor on the DC voltage received from the rectifier and/or a DC voltage supplied from the battery; and a switch. The n-phase generator has n armature windings each having one end connected to a common neutral point. The rectifier has a negative terminal, a positive terminal on which a higher potential is generated than on the negative terminal, and n rectifying arms. Each of the n rectifying arms includes; a first diode connected between an intermediated node connected to the other end of the corresponding armature windings and the negative terminal; and a second diode connected between the intermediate node and the positive terminal. The switch is connected between the neutral point and the negative terminal.

Claims8

Dependent claims

A series hybrid electric vehicle comprising:

an engine;
an n-phase generator driven by said engine;
a rectifier generating a direct voltage from an n-phase alternating voltage received from said n-phase generator;
a battery charged with said direct voltage;
a motor driving a drive wheel;
an inverter driving said motor on said direct voltage received from said rectifier and/or a direct voltage received from said battery;
a switch,
wherein said n-phase generator includes n armature windings each having a first end connected to a common neutral point,
wherein said rectifier includes:
a negative terminal;
a positive terminal on which a higher potential is generated than on said negative terminal;
and
n rectifying arms,
wherein each of said n rectifying arms comprises:
a first diode connected between said negative terminal and an intermediate node connected to second end of corresponding one of said n armature windings;
and
a second diode connected between said intermediate node and said positive terminal, and
wherein said switch is connected between said neutral point and said negative terminal.

15 more elements

Dependencies are inferred from the claim text.

Series hybrid electric vehicle

Life of this patent

Series hybrid electric vehicle

Life of this patent

Abstract

Claims8