Vehicle

• US 9,352,644 B2
• Filed: 08/30/2011
• Issued: 05/31/2016
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kimura, Kenji, Sato, Akihiro
• Primary Examiner(s): Dickson, Paul N
• Assistant Examiner(s): CLEMMONS, STEVE M
• Application Number:
  US13/880,791
• Publication Number:
  US 20140166379A1
• Time in Patent Office: 1,736 Days
• Field of Search: 180/65.21, 180/65.22, 180/65.29, 180/68.1, 180/68.5, 180/89.11, 903/903, 903/951
• US Class Current: 1/1
• CPC Class Codes: B60H 1/00278 for the battery arrangement of batteries B60R16/04
• CPC Class Codes: B60H 2001/003 Component temperature regulation using an air flow
• 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 2001/0416 Arrangement in the rear part of the vehicle
• CPC Class Codes: B60K 2001/0422 Arrangement under the front seats
• CPC Class Codes: B60K 6/20 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
• 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: B60L 58/18 of two or more battery modules
• 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: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y10S 903/951 Assembly or relative location of components

Abstract

A vehicle has a motor and an engine each serving as a driving source for running the vehicle, and assembled batteries each capable of supplying an electric power to the motor. The assembled batteries include a high-power assembled battery and a high-capacity assembled battery. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery, and the high-capacity assembled battery has an energy capacity relatively larger than that of the high-power assembled battery. In running of the vehicle using an output from the motor with the engine stopped, the high-capacity assembled battery supplies a more electric power to the motor than that in the high-power assembled battery. The high-power assembled battery is placed in a riding space where a passenger rides, and the high-capacity assembled battery is placed in a luggage space different from the riding space.

Claims

1. A vehicle comprising:

a motor and an engine each serving as a driving source for running the vehicle;

a high-power assembled battery and a high-capacity assembled battery each capable of supplying an electric power to the motor and each comprising lithium-ion secondary batteries, respectively, the high-power assembled battery and the high-capacity assembled battery being connected in parallel;

a plurality of relays connected to a positive electrode terminal and a negative electrode terminal of the high-power assembled battery, respectively; and

a plurality of relays connected to a positive electrode terminal and a negative electrode terminal of the high-capacity assembled battery, respectively,

the lithium-ion secondary battery of the high-power assembled battery having an output density higher than that of the lithium-ion secondary battery of the high-capacity assembled battery,

the lithium-ion secondary battery of the high-capacity assembled battery having a power capacity density higher than that of the lithium-ion secondary battery of the high-power assembled battery,

in running of the vehicle using an output from the motor with the engine stopped, the high-capacity assembled battery supplying more electric power to the motor than that in the high-power assembled battery,

wherein the high-power assembled battery and the plurality of relays connected to the high-power assembled battery are placed in a riding space where a passenger rides,

the high-capacity assembled battery and the plurality of relays connected to the high-capacity assembled battery are placed in a luggage space different from the riding space,

the high-capacity assembled battery has a battery characteristic changing more largely than that of the high-power assembled battery in response to a temperature change,

a positive electrode active material layer of the lithium-ion secondary battery of the high-power assembled battery has a thickness smaller than that of positive electrode active material layer of the lithium-ion secondary battery of the high-capacity assembled battery, and

a negative electrode active material layer of the lithium-ion secondary battery of the high-power assembled battery has a thickness smaller than that of a negative electrode active material layer of the lithium-ion second battery of the high-capacity assembled battery.

2. The vehicle according to claim 1, wherein, in running of the vehicle using the output from the motor with the engine stopped, a frequency of use of the high-capacity assembled battery is higher than a frequency of use of the high-power assembled battery.

3. The vehicle according to claim 1, wherein, in running of the vehicle using the output from the motor with the engine stopped, a proportion of the electric power supplied from the high-capacity assembled battery to the motor in the electric power supplied to the motor is higher than a proportion of the electric power supplied from the high-power assembled battery to the motor.

4. The vehicle according to claim 1, further comprising an air-conditioner used in adjusting a temperature of the riding space and including a blow-off port for air,

wherein the high-power assembled battery is placed closer to the blow-off port than the high-capacity assembled battery.

5. The vehicle according to claim 1, wherein the high-capacity assembled battery is replaced at a frequency higher than that of the high-power assembled battery.

6. The vehicle according to claim 1, wherein the high-capacity assembled battery has a size larger than that of the high-power assembled battery.

7. The vehicle according to claim 1, wherein the high-power assembled battery has a plurality of cells connected in series, and

the high-capacity assembled battery has a plurality of cells connected in parallel.

8. The vehicle according to claim 7, wherein the cell of the high-power assembled battery is a square-type cell, and

the cell of the high-capacity assembled battery is a cylinder-type cell.