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Charging/discharging control apparatus

A technology of discharge control and equipment, applied in the field of charge/discharge control equipment, to achieve the effect of ensuring performance, reducing size, and preventing battery deterioration

Active Publication Date: 2013-08-14
SUZUKI MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in such hybrid electric vehicles and plug-in hybrid electric vehicles, costly and complex systems such as coordinated regenerative braking become necessary

Method used

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  • Charging/discharging control apparatus
  • Charging/discharging control apparatus
  • Charging/discharging control apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Embodiments of the present invention are described below with reference to the drawings.

[0049] This embodiment is a series hybrid electric vehicle.

[0050] (configuration)

[0051] figure 1is a view showing one example of the system configuration of a series hybrid electric vehicle (hereinafter simply referred to as "hybrid electric vehicle") 1 as an electric vehicle. This hybrid electric vehicle 1 is a plug-in hybrid electric vehicle capable of charging a battery pack 6 mounted on the vehicle with a commercial power supply.

[0052] Such as figure 1 As shown in , a hybrid electric vehicle 1 is provided with: an electric motor 4 for driving, which is connected to a front wheel (drive wheel) 2 of front and rear wheels 2, 3 and functions as a generator in addition to being a driving source; an inverter 5, which performs control of driving the motor 4 for driving; a battery pack (in particular, a high-voltage battery) 6, which is a secondary battery; an electric ...

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Abstract

A hybrid electric vehicle 1 has a battery state detecting unit for detecting a temperature and SOC of a battery pack, a storage unit for storing a first target SOC calculation map in which a battery temperature and a target SOC which enables regenerative power generation at that battery temperature are associated with each other, and a second target SOC calculation map in which a battery temperature and a target SOC which enables startup of an internal combustion engine at that battery temperature are associated with each other, and a charging / discharging control unit for acquiring a target SOC which corresponds to the detected battery temperature based on the first target SOC calculation map or the second target SOC calculation map to control charging / discharging so that the detected SOC matches the acquired target SOC.

Description

technical field [0001] The present invention relates to a technique of controlling charging / discharging of a battery (for example, a high voltage battery) installed in a hybrid electric vehicle (HEV) with an engine or a plug-in hybrid electric vehicle (PHEV). Background technique [0002] Hybrid electric vehicles or plug-in hybrid electric vehicles use electricity from the battery to start the engine by driving the starter motor, so the state of the battery (State of Charge (SOC), temperature, voltage, etc.) great influence. [0003] In addition, in a hybrid electric vehicle capable of regenerative braking and a plug-in hybrid electric vehicle, the braking capability at the time of regenerative power generation depends on the state of the battery. Therefore, costly and complex systems such as coordinated regenerative braking become necessary in such hybrid electric vehicles and plug-in hybrid electric vehicles. [0004] In addition, when the battery temperature is low, or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B60L50/15B60L50/16
CPCY02E60/12Y02T10/7077Y02T10/6217Y02T10/7005Y02T90/14H02J7/0042Y02T10/7044H02J7/00306H02J7/007194
Inventor 尾藤诚二
Owner SUZUKI MOTOR CORP
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