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Title: Utilization of rotor kinetic energy storage for hybrid vehicles

Abstract

A power system for a motor vehicle having an internal combustion engine, the power system comprises an electric machine (12) further comprising a first excitation source (47), a permanent magnet rotor (28) and a magnetic coupling rotor (26) spaced from the permanent magnet rotor and at least one second excitation source (43), the magnetic coupling rotor (26) also including a flywheel having an inertial mass to store kinetic energy during an initial acceleration to an operating speed; and wherein the first excitation source is electrically connected to the second excitation source for power cycling such that the flywheel rotor (26) exerts torque on the permanent magnet rotor (28) to assist braking and acceleration of the permanent magnet rotor (28) and consequently, the vehicle. An axial gap machine and a radial gap machine are disclosed and methods of the invention are also disclosed.

Inventors:
 [1]
  1. Oak Ridge, TN
Publication Date:
Research Org.:
UT-Battelle, LLC (Oak Ridge, TN)
Sponsoring Org.:
USDOE
OSTI Identifier:
1018342
Patent Number(s):
7,936,076
Application Number:
12/009,682
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORO
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Hsu, John S. Utilization of rotor kinetic energy storage for hybrid vehicles. United States: N. p., 2011. Web.
Hsu, John S. Utilization of rotor kinetic energy storage for hybrid vehicles. United States.
Hsu, John S. Tue . "Utilization of rotor kinetic energy storage for hybrid vehicles". United States. https://www.osti.gov/servlets/purl/1018342.
@article{osti_1018342,
title = {Utilization of rotor kinetic energy storage for hybrid vehicles},
author = {Hsu, John S},
abstractNote = {A power system for a motor vehicle having an internal combustion engine, the power system comprises an electric machine (12) further comprising a first excitation source (47), a permanent magnet rotor (28) and a magnetic coupling rotor (26) spaced from the permanent magnet rotor and at least one second excitation source (43), the magnetic coupling rotor (26) also including a flywheel having an inertial mass to store kinetic energy during an initial acceleration to an operating speed; and wherein the first excitation source is electrically connected to the second excitation source for power cycling such that the flywheel rotor (26) exerts torque on the permanent magnet rotor (28) to assist braking and acceleration of the permanent magnet rotor (28) and consequently, the vehicle. An axial gap machine and a radial gap machine are disclosed and methods of the invention are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {5}
}

Patent:

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