Power transmission apparatus with rotating electrical machine
First Claim
1. A power transmission apparatus with a rotating electrical machine, the apparatus being disposed on a power transmission path from an output shaft of an internal combustion engine to a transmission in a vehicle, the apparatus comprising:
- a rotating electrical machine that includes;
a rotor coupled to a synchronous rotating member that rotates synchronously with the output shaft of the internal combustion engine, a rotating shaft defining a central axis of the output shaft of the internal combustion engine;
a stator fixed to a fixing member on a non-rotating side with respect to the synchronous rotating member, and facing the rotor with a first gap therebetween;
a magnetizing force adjustment device that adjusts magnetizing force of the rotor so as to be different between at a start of the internal combustion engine and at a time of power generation, the magnetizing force adjustment device including;
a field coil that applies magnetizing force to the rotor to excite the rotor, anda magnetizing force adjustment control unit that controls electric energy that is supplied to the field coil, to adjust the magnetizing force that is generated in the field coil, the magnetizing force adjustment device controlling electric energy that is supplied from the magnetizing force adjustment control unit to the field coil so as to be different between at the start of the internal combustion engine and at the time of power generation, to make the magnetizing force of the rotor different and make an inductive voltage that is generated in the stator different between at the start of the internal combustion engine and at the time of power generation,an inverter electrically connected to the stator; and
a power transmission apparatus control unit that distinguishes the start of the internal combustion engine and the time of power generation and controls drive of each of the inverter and the magnetizing force adjustment control unit, wherein;
the rotor of the rotating electrical machine has a cylindrical shape, and a first claw pole and a second claw pole face each other in a form of sandwiching a non-magnetic body in a vertical cross section along an axial direction of the rotating shaft of the rotor, and first claw pole and second claw pole, each formed of a magnetic body, are alternately disposed along a peripheral direction of the rotor,the stator is disposed in a cylindrical shape on a radially outer side of the rotor with the first gap therebetween, andthe field coil of the magnetizing force adjustment device is fixed to the fixing member on the non-rotating side with a second gap between the rotor and the field coil, and applies magnetizing force to the rotor disposed in a non-contact manner, to excite the first claw pole and the second claw pole each being the magnetic body of the rotor.
1 Assignment
0 Petitions
Accused Products
Abstract
A power transmission apparatus, which is disposed on a power transmission path from an output shaft of an internal combustion engine to a transmission in a vehicle, is provided with a rotating electrical machine including a rotor and a stator. The rotor is coupled to a synchronous rotating member that rotates synchronously with the output shaft of the internal combustion engine, and takes a central axis of the output shaft of the internal combustion engine as a rotating shaft. The stator is fixed to a fixing member on a non-rotating side with respect to the synchronous rotating member, and faces the rotor with a first gap therebetween.
13 Citations
9 Claims
-
1. A power transmission apparatus with a rotating electrical machine, the apparatus being disposed on a power transmission path from an output shaft of an internal combustion engine to a transmission in a vehicle, the apparatus comprising:
-
a rotating electrical machine that includes; a rotor coupled to a synchronous rotating member that rotates synchronously with the output shaft of the internal combustion engine, a rotating shaft defining a central axis of the output shaft of the internal combustion engine; a stator fixed to a fixing member on a non-rotating side with respect to the synchronous rotating member, and facing the rotor with a first gap therebetween; a magnetizing force adjustment device that adjusts magnetizing force of the rotor so as to be different between at a start of the internal combustion engine and at a time of power generation, the magnetizing force adjustment device including; a field coil that applies magnetizing force to the rotor to excite the rotor, and a magnetizing force adjustment control unit that controls electric energy that is supplied to the field coil, to adjust the magnetizing force that is generated in the field coil, the magnetizing force adjustment device controlling electric energy that is supplied from the magnetizing force adjustment control unit to the field coil so as to be different between at the start of the internal combustion engine and at the time of power generation, to make the magnetizing force of the rotor different and make an inductive voltage that is generated in the stator different between at the start of the internal combustion engine and at the time of power generation, an inverter electrically connected to the stator; and a power transmission apparatus control unit that distinguishes the start of the internal combustion engine and the time of power generation and controls drive of each of the inverter and the magnetizing force adjustment control unit, wherein; the rotor of the rotating electrical machine has a cylindrical shape, and a first claw pole and a second claw pole face each other in a form of sandwiching a non-magnetic body in a vertical cross section along an axial direction of the rotating shaft of the rotor, and first claw pole and second claw pole, each formed of a magnetic body, are alternately disposed along a peripheral direction of the rotor, the stator is disposed in a cylindrical shape on a radially outer side of the rotor with the first gap therebetween, and the field coil of the magnetizing force adjustment device is fixed to the fixing member on the non-rotating side with a second gap between the rotor and the field coil, and applies magnetizing force to the rotor disposed in a non-contact manner, to excite the first claw pole and the second claw pole each being the magnetic body of the rotor. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A power transmission apparatus with a rotating electrical machine, the apparatus being disposed on a power transmission path from an output shaft of an internal combustion engine to a transmission in a vehicle, the apparatus comprising:
-
a rotating electrical machine that includes; a rotor coupled to a synchronous rotating member that rotates synchronously with the output shaft of the internal combustion engine, a rotating shaft defining a central axis of the output shaft of the internal combustion engine; a stator fixed to a fixing member on a non-rotating side with respect to the synchronous rotating member, and facing the rotor with a first gap therebetween; a magnetizing force adjustment device that adjusts magnetizing force of the rotor so as to be different between at a start of the internal combustion engine and at a time of power generation, the magnetizing force adjustment device including; a field coil that applies magnetizing force to the rotor to excite the rotor, and a magnetizing force adjustment control unit that controls electric energy that is supplied to the field coil, to adjust the magnetizing force that is generated in the field coil, the magnetizing force adjustment device controlling electric energy that is supplied from the magnetizing force adjustment control unit to the field coil so as to be different between at the start of the internal combustion engine and at the time of power generation, to make the magnetizing force of the rotor different and make an inductive voltage that is generated in the stator different between at the start of the internal combustion engine and at the time of power generation, an inverter electrically connected to the stator; and a power transmission apparatus control unit that distinguishes the start of the internal combustion engine and the time of power generation and controls drive of each of the inverter and the magnetizing force adjustment control unit, wherein; the field coil is provided in the rotor of the rotating electrical machine, the magnetizing force adjustment device includes an induction coil made up of a primary coil on a fixed side which is fixed to the fixing member where the stator is fixed, and supplied with the electric energy that is supplied from the magnetizing force adjustment control unit to the field coil, and a secondary coil on a rotating side which is coupled to the synchronous rotating member and makes a same rotation as the rotor, and a rectifying circuit that is interposed between the secondary coil of the induction coil and the field coil of the rotor, and rectifies a current that is supplied from the secondary coil to the field coil, and the electric energy that is supplied from the magnetizing force adjustment control unit to the field coil is supplied to the field coil via the primary coil, the secondary coil, and the rectifying circuit. - View Dependent Claims (8, 9)
-
Specification