Electrically-driven vehicle

• US 10,195,929 B2
• Filed: 11/10/2017
• Issued: 02/05/2019
• Est. Priority Date: 05/25/2015
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Kabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kusumi, Hidetoshi, Ohgitani, Ikkei
• Primary Examiner(s): Swenson, Brian L
• Application Number:
  US15/809,096
• Publication Number:
  US 20180065463A1
• Time in Patent Office: 452 Days
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 2001/005 the electric storage means
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60K 6/28 characterised by the electric energy storing means, e.g. batteries or capacitors
• CPC Class Codes: B60K 6/44 Series-parallel type
• CPC Class Codes: B60K 6/448 Electrical distribution type
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60L 58/20 having different nominal voltages
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y10S 903/907 Electricity storage, e.g. battery, capacitor

Abstract

An electrically-driven vehicle includes a high-capacity battery unit and a high-output battery unit, both of which supply electric power to rotating electric machines, and a charging inlet serving as a charging port of an external power supply. The high-capacity battery unit receives more charge power from the charging inlet than the high-output battery unit and is positioned nearer to the charging inlet than the high-output battery unit is to the charging inlet. In this way, an electric power loss increase caused by a wiring resistance during an external charge can be suppressed in a plug-in type electrically-driven vehicle, which is chargeable by an external power supply.

Claims

1. An electrically-driven vehicle comprising:

a rotating electric machine configured to drive the vehicle;

a high-capacity battery unit configured to have a relatively high capacity and a high-output battery unit configured to have a relatively high output, the high-capacity battery unit having a higher capacity and a lower output than the high-output battery unit, both the high-capacity battery unit and the high output battery unit supplying electric power to the rotating electric machine; and

a charging inlet configured to serve as a charging port of an external power supply, the charging inlet being connected to the high-capacity battery unit via first power wiring and to the high-output battery unit via second power wiring, the first power wiring being shorter than the second power wiring, wherein

the rotating electric machine is connected to the high-capacity battery unit via a third power wiring and to the high-output battery unit via a fourth power wiring, and

the fourth power wiring is shorter than the third power wiring.

2. The electrically-driven vehicle according to claim 1, wherein

among the electric power supplied to the rotating electric machine, a ratio of the electric power supplied from the high-capacity battery unit to the rotating electric machine is configured to be higher than a ratio of the electric power supplied from the high-output battery unit to the rotating electric machine.