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US 10,097,093 B2Granted
Electric power conversion system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShohei Sunahara, Hidetsugu Hamada, Akihiko Ide, Masatoshi Shinohara
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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShohei Sunahara, Hidetsugu Hamada, Akihiko Ide, Masatoshi Shinohara
Estimating the term…
An electric power conversion system includes: a first battery; a second battery; an electric power converter including a plurality of switching elements, and configured to bidirectionally step up or step down electric power between an output line and each the first and second batteries in accordance with PWM signals; and a controller configured to control first and second step-up and step-down circuits by generating first and second PWM signals. The first and second step-up and step-down circuits are established between each first and second batteries and the output line. The first and second PWM signals are signals for controlling step-up and step-down operation of each first and second step-up and step-down circuit. The controller is configured to, when coupling on-duty periods of both the first and second PWM signals with each other, execute an overlap phase shift that partially overlaps the on-duty periods of the first and second PWM signals.
An electric power conversion system comprising:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
Including plural semiconductor devices as final control devices for a single load: comprising at least one synchronous rectifier element
Including plural semiconductor devices as final control devices for a single load: buck-boost converters
Technologies for an efficient end-user side electric power management and consumption: technologies improving the efficiency by using…
Apparatus for conversion between ac and ac, between ac and dc, or
About 10 years 1 month of term left · ends 24 Nov 2036 (estimated)
The disclosure of Japanese Patent Application No. 2014-208832 filed on Oct. 10, 2014 including the specification, drawings and abstract is incorporated herein by reference in its entirety.
1. Field of the Invention
The invention relates to an electric power conversion system that is able to step up or step down electric power in parallel with two direct-current power supplies.
Features, advantages, and technical and industrial significance of exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like numerals denote like elements, and wherein:
FIG. 1 is a configuration view of an electrical system of a vehicle on which an electric power conversion system according to an embodiment is mounted;
FIG. 2A and FIG. 2B are views that illustrate the configuration of an electric power converter according to the embodiment;
Hereinafter, an embodiment of the invention will be described with reference to the accompanying drawings. FIG. 1 illustrates a configuration, view of an electrical system of a vehicle, including an electric power conversion system 10 according to the present embodiment. The alternate long and short dashed lines in FIG. 1 represent signal lines. In FIG. 1, for the sake of easy understanding, part of components not associated with electric power conversion are not shown in the drawing.
Overall Configuration
The electric power conversion system 10 includes a first battery B1, a second battery B2, an electric power converter 11 (converter) and a CNV controller 13 that controls the electric power converter 11. The electric power conversion system 10 is mounted on a vehicle, such as a hybrid vehicle and an electric vehicle. Other than the electric power conversion system 10, an inverter 18, a rotary electric machine 20 and a controller 22 are mounted on the vehicle.