vehicle

JP7871776B2Active Publication Date: 2026-06-09TOYOTA JIDOSHA KK

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2023-10-12
Publication Date
2026-06-09

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Patent Text Reader

Abstract

To provide a vehicle capable of supplying power from a bidirectional power conversion device to electric heating-type catalysts of two systems.SOLUTION: A vehicle includes: a plurality of relays electrically connected to a first power line connecting a bidirectional power conversion device to a first AC port and a second power line connecting the bidirectional power conversion device to a second AC port via multiple power lines, and capable of at least selectively switching between parallel connection and series connection of a first electric heating-type catalyst and a second electric heating-type catalyst; and a control device configured to control ON and OFF of each of the plurality of relays.SELECTED DRAWING: Figure 1
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Claims

[Claim 1] Internal combustion engines and A rotating electric machine, which is the power source for vehicle propulsion, A power storage device for storing the power supplied to the aforementioned rotating electric machine, A first electrically heated catalyst and a second electrically heated catalyst are configured to have a catalyst for purifying exhaust gas discharged from the internal combustion engine, and to be electrically heated by power supplied from the energy storage device. A bidirectional power converter having a DC port for electrically connecting to the energy storage device, a first AC port into which a first AC power for charging the energy storage device is input, and a second AC port for outputting a second AC power, Equipped with, The vehicle is configured such that the bidirectional power converter is configured to convert the first AC power into DC power and output it to the DC port, and to convert the DC power supplied from the energy storage device to the DC port into second AC power and output it to the second AC port, A first power path connecting the bidirectional power converter and the first AC port, and a second power path connecting the bidirectional power converter and the second AC port, are electrically connected via a plurality of power lines to a plurality of relays capable of selectively switching between parallel and series connections of the first electric heating catalyst and the second electric heating catalyst, A control device that controls the ON and OFF states of each of the aforementioned multiple relays, It is equipped with, The control device controls the ON and OFF states of each of the plurality of relays, A parallel operation mode is provided in which the first electric heating catalyst and the second electric heating catalyst are connected in parallel, and power is supplied to the first electric heating catalyst and the second electric heating catalyst. A series operation mode is provided in which the first electric heating catalyst and the second electric heating catalyst are connected in series, and power is supplied to the first electric heating catalyst and the second electric heating catalyst. A first one-sided operating mode that can supply power only to the first electrically heated catalyst, A second one-sided operating mode that can supply power only to the second electrically heated catalyst, A vehicle characterized by its ability to selectively switch between modes.