Power source device and vehicle with power source device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHiroki Sawada, Yoshinori Fujitake
Life of this patent
Estimating the term…
Abstract
A power source device includes first and second rechargeable batteries, a load circuit, a first step-up converter converting voltage between a first node to which the first battery is connected and a second node to which the load circuit is connected, a second step-up converter converting voltage between a third node to which the second battery is connected and the second node, and a charge/discharge unit transmitting power received from an external power source. Preferably, the power source device further includes a first system main relay, a second system main relay, and a controller controlling the first and second system main relays and the first and second step-up converters.
Claims30
A power source device charged by an external power source, comprising:
- a first power storage device chargeable and dischargeable, and connected to a first node;
- a load connected to a second node;
- a first voltage converting unit converting voltage between said first node and said second node;
- a second power storage device chargeable and dischargeable, and connected to a third node;
- a second voltage converting unit converting voltage between said third node and said second node;
- and
- a power transmitting unit transmitting power received from said external power source to said first node.
A vehicle, comprising:
- a power source device charged by an external power source provided outside said vehicle,
- said power source device including
- a first power storage device chargeable and dischargeable, and connected to a first node;
- a load connected to a second node;
- a first voltage converting unit converting voltage between said first node and said second node;
- a second power storage device chargeable and dischargeable, and connected to a third node;
- a second voltage converting unit converting voltage between said third node and said second node;
- and
- a power transmitting unit transmitting power received from said external power source to said first node.
Dependencies are inferred from the claim text.