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Electrically powered vehicle

A technology for electric vehicles and vehicles, applied in electric vehicles, vehicle components, vehicle energy storage, etc., can solve problems such as increased internal resistance and reduced full charge capacity

Inactive Publication Date: 2018-03-06
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondary batteries are known to experience an increase in internal resistance and / or a decrease in full charge capacity due to deterioration over time that accompanies use

Method used

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  • Electrically powered vehicle
  • Electrically powered vehicle
  • Electrically powered vehicle

Examples

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Embodiment Construction

[0020] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In addition, in the following, the same reference numerals are attached to the same or corresponding parts in the drawings, and the description thereof will not be repeated in principle.

[0021] figure 1 It is a block diagram showing a configuration example of an electric vehicle according to an embodiment of the present disclosure.

[0022] refer to figure 1 , the main battery 10 serving as a vehicle-mounted secondary battery is mounted on the electric vehicle 100 . Electric vehicle 100 is constituted by, for example, a hybrid vehicle or an electric vehicle using main battery 10 as a vehicle driving power source (ie, a power source). A hybrid vehicle is a vehicle that includes, in addition to a battery, a fuel cell (not shown), an engine, and the like as a power source for running the vehicle. An electric vehicle is a vehicle that includes only a battery ...

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PUM

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Abstract

Use history data of a main battery of an electrically powered vehicle (100) is periodically accumulated in a memory (32). A data center (250) calculates a standard deterioration degree over time of the main battery (10) by using information on secondary batteries received from a plurality of electrically powered vehicles (100#) each provided with a vehicle-mounted secondary battery. A controller (30) obtains the standard deterioration degree from the data center (250) at prescribed deterioration diagnosis timing and increases an upper limit value of an SOC control range of the main battery when a deterioration degree estimated from the use history data of the main battery is lower than the standard deterioration degree.

Description

technical field [0001] The present disclosure relates to electric vehicles, and more particularly, to electric vehicles equipped with secondary batteries. Background technique [0002] A secondary battery is mounted on the vehicle as a power source for driving a motor of an electric vehicle or a hybrid vehicle. It is known that an increase in internal resistance and / or a decrease in full charge capacity occur in secondary batteries due to deterioration over time that accompanies use. In particular, when the full charge capacity decreases, there is a concern that the energy recoverable by regenerative braking decreases during running and the travelable distance by the stored energy of the secondary battery decreases. [0003] Japanese Patent No. 5126008 discloses a vehicle battery diagnosis system for determining the remaining life of a vehicle-mounted secondary battery by being connected to a vehicle handed over to an inspection / repair person such as a dealer. According to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
CPCB60L58/13B60L3/0046B60L3/12B60L58/16B60L58/21Y02T10/70B60L58/12B60L2240/70B60L2260/50
Inventor 片野田智也
Owner TOYOTA JIDOSHA KK
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