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Power supply system, vehicle using the same, and its control method

A technology of power supply system and control mechanism, applied in battery/fuel cell control device, battery temperature control, battery/battery traction, etc., can solve the problem of uneven temperature, not considering battery temperature, etc., achieve efficient temperature management, eliminate The effect of temperature inhomogeneity

Inactive Publication Date: 2009-10-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the electric motor power management system disclosed in the above-mentioned U.S. Patent No. 6,608,396, the temperature of the battery (power storage unit) is not considered at all, so there is also a problem that such temperature unevenness among the plurality of power storage units cannot be avoided. a question

Method used

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  • Power supply system, vehicle using the same, and its control method
  • Power supply system, vehicle using the same, and its control method
  • Power supply system, vehicle using the same, and its control method

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Embodiment Construction

[0030] Embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same symbols are assigned to the same or equivalent components in the drawings, and their descriptions will not be repeated.

[0031] figure 1 It is a schematic configuration diagram showing main parts of a vehicle 100 of the power supply system 1 according to the embodiment of the present invention.

[0032] refer to figure 1 , in the present embodiment, as an example of a load device, a configuration in which electric power is transmitted and received to and from the drive force generating unit 3 for generating drive force of the vehicle 100 is exemplified. Vehicle 100 travels by transmitting the driving force generated by driving force generation unit 3 receiving electric power supplied from power supply system 1 to wheels (not shown).

[0033] In this embodiment, a power supply system 1 including two power storage units will be described as an example...

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Abstract

When the relationship of battery temperature Tb1 > battery temperature Tb2 is satisfied, a temperature increase request for an accumulator (6-2) is relatively increased. For this, a target power value P2 for the accumulator (6-2) is decided with a higher priority. A distribution ratio Pr2 (0.5<= distribution ratio Pr2<= 1.0) is decided in accordance with the difference between the battery temperature Tb1 and the battery temperature Tb2. The distribution ratio Pr2 is multiplied by the requested power value Ps* so as to calculate a target power value P2*. On the other hand, the target power value P1* is calculated by subtracting the target power value P2* from the requested power value Ps*.

Description

technical field [0001] The present invention relates to a power supply system having a plurality of power storage units, a vehicle equipped with the power supply system, and a control method thereof, and particularly relates to managing electric power charged and discharged by each power storage unit in consideration of a temperature difference between the power storage units technology. Background technique [0002] In recent years, vehicles using electric motors as a driving power source, such as electric vehicles, hybrid vehicles, and fuel cell vehicles, have attracted attention in consideration of environmental issues. Such a vehicle is equipped with a chargeable and dischargeable power storage unit for supplying electric power to a motor or converting kinetic energy into electric energy and storing it during regenerative braking. [0003] In a vehicle using such an electric motor as a driving power source, it is preferable to increase the power supply capacitance in or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B60K6/445B60L3/00B60W10/26B60W20/00H01M10/44H02M3/155B60L50/15B60L50/16
CPCB60L2210/30H01M10/345Y02T10/7005B60L11/187Y02T10/7241B60L3/0046Y02T10/7016Y02T10/7061B60L2240/547B60K1/02H02J7/0091Y02T10/7044B60L2210/40Y02T10/7077B60W2510/246B60L2210/12B60L11/14B60L2240/549Y02T10/705B60K6/445H01M10/425H01M10/502B60L2240/545Y02T90/34Y02E60/12H01M10/443B60L11/1866H01M10/5004H01M10/0525Y02T10/6239H01M10/5016H01M10/06H01M10/5032B60L11/1861B60L11/1872H01M10/5067B60W10/26Y02T10/7225Y02T10/7011B60L2210/14B60L11/1853B60L11/123Y02T10/6217B60L3/0053Y02T10/7233B60W20/00B60K6/20H01M10/625H01M10/63H01M10/6563H01M10/647H01M10/613H02J7/0063B60L50/61B60L50/16B60L58/18B60L58/22B60L58/24B60L58/25B60L58/13Y02E60/10Y02T10/62Y02T10/70Y02T10/72Y02T10/7072B60W2510/244H02J7/007194B60W2710/244B60W20/13Y02T90/40
Inventor 及部七郎斋市川真士佐藤荣次
Owner TOYOTA JIDOSHA KK
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