Power storage device, transmission equipment, and control method
A technology for power storage devices and transmission equipment, which is applied in the direction of circuit devices, battery circuit devices, battery/fuel cell control devices, etc., and can solve problems such as the deterioration of the second power storage device, reduce the loss of storage capacity, and prevent power supply Execution, effect of suppressing deterioration
Active Publication Date: 2019-05-03
HONDA MOTOR CO LTD
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Problems solved by technology
In this way, since the second power storage device is actively charged and discharged every charge, there is a high possibility that the deterioration of the second power storage device will be promoted.
Method used
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[0074] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0075] figure 1 It is a block diagram showing a schematic configuration of an electric vehicle equipped with a power storage device according to an embodiment of the present invention. figure 1 The thick solid line in the diagram indicates the mechanical connection, the double dashed line indicates the power wiring, and the thin solid line indicates the control signal. figure 1 The illustrated 1MOT electric vehicle includes a motor generator (MG) 11 , a PDU (Power Drive Unit) 13 , and a power storage device 100 according to one embodiment. Each component included in the electric vehicle will be described below.
[0076] Motor generator 11 is driven by electric power supplied from power storage device 100 to generate power for running the electric vehicle. The torque generated by the motor generator 11 is transmitted to the driving wheels W through a gearbox GB and a ...
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An energy storage device includes a first energy storage, a second energy storage, a voltage converter, and a controller. The first energy storage has a first resistance to degradation of a charging capacity of the first energy storage. The second energy storage has a second resistance to degradation of a charging capacity of the second energy storage higher than the first resistance. The voltage converter converts a voltage output from the second energy storage or supplied from an external electric power source to charge at least one of the first energy storage and the second energy storage. The controller controls the voltage converter so as to supply electric power from the second energy storage to the first energy storage before charging the at least one of the second energy storage and the first energy storage with electric power supplied from the external electric power source.
Description
technical field [0001] The present invention relates to a power storage device, a transportation facility, and a control method including a plurality of electric power storage devices having different storage capacities with respect to degradation resistance to charging. Background technique [0002] Patent Document 1 describes a power supply device that charges a plurality of power storage devices mounted on a vehicle using an external power supply. This power supply device includes: a first power storage device as a supply source of electric power to an electric load; a converter for adjusting voltage in two directions between the first power storage device and the electric load; and a second power storage device connected in parallel to the converter. an electric device; a charging device that is connected in parallel to the second power storage device and charges at least one of the first power storage device and the second power storage device using a power source exter...
Claims
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IPC IPC(8): B60L58/10B60L58/13B60L58/20H02J7/14
CPCB60L58/10B60L58/12B60L58/20H02J7/1423H02J7/1492Y02T10/70Y02T10/92
Inventor 泷泽大二郎海野良太小熊宏和
Owner HONDA MOTOR CO LTD