ELECTRIC MOTOR VEHICLE AND BATTERY PACK

• US 20160347183A1
• Filed: 05/20/2016
• Published: 12/01/2016
• Est. Priority Date: 05/25/2015
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toyota Jidoshokki (Toyota Motor Corporation), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Kabushiki Kaisha Toyota Jidoshokki (Toyota Motor Corporation), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: KUSUMI, Hidetoshi, OHGITANI, Ikkei
• Granted Patent: US 9,937,801 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 2001/0438 Arrangement under the floor
• CPC Class Codes: B60L 50/00 Electric propulsion with power supplied within the vehicle with power supply from force of nature, e.g. sun or wind, B60L8/00; for monorail vehicles, suspension vehicles or rack railways B60L13/00
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/249 specially adapted for aircraft or vehicles, e.g. cars or trains constructional details of batteries specially adapted for electric vehicles B60L50/64
• CPC Class Codes: H01M 50/296 characterised by terminals of battery packs terminals of batteries H01M50/543
• CPC Class Codes: H01M 50/298 characterised by the wiring of battery packs
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• 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 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

An electric motor vehicle of the present invention is characterized in that the electric motor vehicle includes: a high-output assembled battery; a high-capacity assembled battery having a larger capacity and a smaller output than those of the high-output assembled battery; and an inverter, and the electric motor vehicle is equipped with a PCU that transmits and receives electric power to and from the high-output assembled battery and the high-capacity assembled battery, a first wiring that connects the high-output assembled battery to the PCU, and a second wiring that connects the high-capacity assembled battery to the PCU, and is shorter than the first wiring.

Claims

1. An electric motor vehicle comprising:

a high-output battery;

a high-capacity battery having a larger capacity and a smaller output than a capacity and an output of the high-output battery;

an electric power controller that includes an inverter, the electric power controller being configured to transmit and receive electric power to and from the high-output battery and the high-capacity battery;

a first wiring that connects the high-output battery to the electric power controller; and

a second wiring that connects the high-capacity battery to the electric power controller, the second wiring being shorter than the first wiring.

2. The electric motor vehicle according to claim 1, wherein

in electric power transmitted and received by the electric power controller, a percentage of electric power transmitted and received between the electric power controller and the high-capacity battery is greater than a percentage of electric power transmitted and received between the electric power controller and the high-output battery.

3. The electric motor vehicle according to claim 1, wherein

a location of the high-capacity battery is closer to the electric power controller than a location of the high-output battery is.

4. The electric motor vehicle according to claim 3, wherein

the electric power controller, the high-capacity battery, and the high-output battery are disposed in this order in one direction.

5. The electric motor vehicle according to claim 1, wherein

the high-capacity battery and the high-output battery are disposed under a floor panel of the vehicle while the high-capacity battery and the high-output battery are housed in an identical case.

6. The electric motor vehicle according to claim 5, wherein

the electric power controller is disposed more frontward than a vehicle cabin, and the high-capacity battery is disposed more frontward than the high-output battery in the case.

7. A battery pack including batteries of two or more types, the battery pack comprising:

a case;

a high-output battery housed in the case;

a high-capacity battery that is housed in the case, the high-capacity battery having a larger capacity and a smaller output than a capacity and an output of the high-output battery;

a connection terminal electrically connected to an electric power controller disposed outside the battery pack;

a first internal wiring that connects the high-output battery to the connection terminal; and

a second internal wiring that connects the high-capacity battery to the connection terminal, the second internal wiring being shorter than the first internal wiring.