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Method and system for controlling charge and discharge amounts of a main battery for a hybrid car

A hybrid vehicle and hybrid technology, applied in the direction of secondary battery charging/discharging, electric vehicle charging technology, electric vehicles, etc., can solve the problem that the battery cannot be effectively adapted to various driving modes of the driver, and it is difficult to stably assist the hybrid Problems with automobiles, reduced efficiency of automobiles, etc.

Inactive Publication Date: 2007-12-12
HYUNDAI MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Because existing logic systems for controlling the battery state of charge use fixed ratio factors, the operation of the battery cannot be effectively adapted to the driver's various driving modes
[0009] As a result, there is a disadvantage that the life of the battery is shortened because the battery that must operate in the normal area may operate in the overcharged area or the overdischarged area, and it is difficult to stably assist a hybrid vehicle
[0010] That is, when the battery has a lower state of charge, if time passes, the storage effect of the battery and the engine load increase, while the efficiency of the car decreases, and the battery life is shortened

Method used

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  • Method and system for controlling charge and discharge amounts of a main battery for a hybrid car
  • Method and system for controlling charge and discharge amounts of a main battery for a hybrid car
  • Method and system for controlling charge and discharge amounts of a main battery for a hybrid car

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Embodiment Construction

[0022] Reference will now be made in more detail to a preferred embodiment of the invention, an example of which is illustrated in the accompanying drawings. Wherever the same reference numbers refer to the same or like parts throughout the drawings and description.

[0023] Fig. 1 is a flow chart showing a method for controlling the charge and discharge capacity of a main battery of a hybrid vehicle according to the present invention, Fig. 2 is a graph showing a state of charge region of a main battery of a hybrid vehicle; and Fig. 3 is a flow chart Figure, representing one embodiment of a method for controlling the charge and discharge capacity of a main battery of a hybrid electric vehicle.

[0024] 1 and 2, when the driver boards the hybrid vehicle (not shown), and the engine is started, the main battery (not shown), the drive motor (not shown), the conversion system, etc. ( not shown in the figure) is checked thoroughly by the hydraulic control unit (not shown in the fig...

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Abstract

A method which is used for controlling the charging and discharging quantity of the main battery of the mixed power vehicle comprises the following procedures: overall examining the main battery, the driving electric motor, the transition system and the like by the mixed power control unit which is provided to the mixed power vehicle; driving the mixed-power vehicle according to the driving mode of the driver; and controlling the charging and discharging quantity of the main battery by the mixed power control unit by the driving mode adjusting of the driver and obtaining the scale factor of the main battery thereby managing in the normal area with a charging state.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2006-0052029 filed with the Korean Patent Office on Jun. 9, 2006, the entire contents of which are incorporated by reference. technical field [0003] The present invention relates to a method for controlling the charging and discharging amount of a main battery of a hybrid electric vehicle, wherein the charging and discharging amount of the main battery is controlled according to the driving mode of the driver of the hybrid electric vehicle so that the main battery can be used under optimal conditions, And the controlled proportional coefficient is stored in the memory of the hybrid control unit (HCU), so that the hybrid vehicle can be stably assisted no matter how the driver changes or changes accordingly. Background technique [0004] As generally known in the art, a hybrid vehicle means a vehicle driven by two power sources. Batteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18H01M10/44H02J7/00B60L50/15B60L50/16
CPCB60L2260/42Y02T90/128Y02T10/7005Y02T90/14B60L11/1851H02J7/1446B60L11/185Y02T10/7283B60W2510/244Y02T10/705Y02T10/92Y02T90/121B60L15/2045Y02T10/7088B60L53/11B60L58/10Y02T10/64Y02T10/70Y02T10/7072Y02T10/72Y02T90/12
Inventor 崔榕珏
Owner HYUNDAI MOTOR CO LTD
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