KR970024438A - Apparatus and method for measuring remaining capacity of electric vehicle - Google Patents

Apparatus and method for measuring remaining capacity of electric vehicle Download PDF

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Publication number
KR970024438A
KR970024438A KR1019950034985A KR19950034985A KR970024438A KR 970024438 A KR970024438 A KR 970024438A KR 1019950034985 A KR1019950034985 A KR 1019950034985A KR 19950034985 A KR19950034985 A KR 19950034985A KR 970024438 A KR970024438 A KR 970024438A
Authority
KR
South Korea
Prior art keywords
electric vehicle
battery
remaining capacity
calculating
controller
Prior art date
Application number
KR1019950034985A
Other languages
Korean (ko)
Inventor
김천호
Original Assignee
한승준
기아자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한승준, 기아자동차주식회사 filed Critical 한승준
Priority to KR1019950034985A priority Critical patent/KR970024438A/en
Publication of KR970024438A publication Critical patent/KR970024438A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles

Abstract

본 발명은 전기 자동차의 배터리 잔존 용량 측정 장치에 관한 것으로서 특히 정(定)출력 부하시 전기 자동차에 사용되는 배터리의 사용 가능 에너지는 정출력 파워(power)에 반비례하는 특성을 이용하여 배터리의 충전시기를 정확하게 예측하여 표시할 수 있는 전기 자동차의 배터리 잔존 용량 측정 장치 및 방법에 관한 것이다. 전술한 바와 같은 본 발명의 전기 자동차의 배터리 수명 예측 장치의 구성은 전류 센서, 전압 센서, 온도 센서 및 상기의 센서에서 인가되는 신호 값을 연산하여 잔존 용량 표시부에 신호를 출력하는 콘트롤러 및 배터리 잔존 용량 표시부를 포함하는 것을 특징으로 한다. 또한 본 발명의 전기 자동차의 배터리 수명 예측 방법은 온도 센서, 전압 센서와 전류 센서에서 측정된 신호 값을 콘트롤러에 출력하는 단계, 콘트롤러에서 상기의 신호값에 의해 P = V * A를 연산하는 단계, Eo(T) = Eo(30)*(1 + α(T - 30))을 연산하는 단계, (P*Δt / (Eo(T) + m/P))를 연산하는 단계, SOC = SOC - (P*Δt / (Eo(T) + m/P))를 연산하는 단계 및 연산된 SOC 값을 배터리 잔존 용량 표시부에 표시하는 단계를 포함하는 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring battery remaining capacity of an electric vehicle. In particular, the available energy of a battery used in an electric vehicle under a constant output load is charged by using a characteristic inversely proportional to the constant output power. An apparatus and method for measuring battery remaining capacity of an electric vehicle capable of accurately predicting and displaying the same may be used. As described above, the configuration of the battery life prediction apparatus of the electric vehicle of the present invention includes a controller for calculating a current value, a voltage sensor, a temperature sensor, and a signal value applied from the sensor, and outputting a signal to the remaining capacity display unit. And a display unit. In addition, the battery life prediction method of the electric vehicle of the present invention, the step of outputting the signal value measured in the temperature sensor, voltage sensor and current sensor to the controller, the step of calculating P = V * A by the signal value in the controller, Calculating Eo (T) = Eo (30) * (1 + α (T-30)), calculating (P * Δt / (Eo (T) + m / P)), SOC = SOC- Computing (P * Δt / (Eo (T) + m / P)) and displaying the calculated SOC value on the battery remaining capacity display.

Description

전기 자동차의 잔존 용량 측정 장치 및 방법Apparatus and method for measuring remaining capacity of electric vehicle

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 전기 자동차의 잔존 용량 측정 장치를 도시한 개략도.1 is a schematic diagram showing an apparatus for measuring the remaining capacity of an electric vehicle.

Claims (3)

전기 자동차의 배터리 예측 장치에 있어서, 배터리에서 구동 시스템에 인가 되는 전류를 센싱하는 전류 센서, 배터리에서 구동 시스템에 인가 되는 전압을 센싱하는 전압 센서, 배터리의 온도를 센싱하는 온도 센서 및 상기의 세 개의 센서에서 인가되는 신호 값을 연산하여 잔존 용량 표시부에 신호를 출력하는 콘트롤러 및 배터리 잔존 용량 표시부(7)를 포함하는 것을 특징으로 하는 전기 자동차의 배터리 잔존 용량 예측 장치.A battery prediction apparatus for an electric vehicle, comprising: a current sensor sensing a current applied to a driving system from a battery, a voltage sensor sensing a voltage applied to a driving system from a battery, a temperature sensor sensing a temperature of the battery, and the three And a controller for outputting a signal to the remaining capacity display unit by calculating a signal value applied from the sensor, and a battery remaining capacity display unit (7). 제1항에 있어서, 콘트롤러는 A/D 컨버터와 복수개의 디코더를 포함하는 마이크로 프로세서인 것을 특징으로 하는 전기 자동차의 배터리 수명 예측 장치.The apparatus of claim 1, wherein the controller is a microprocessor including an A / D converter and a plurality of decoders. 전기 자동차의 배터리 수명 예측 방법에 있어서, 온도 센서, 전압 센서와 전류 센서에서 측정된 신호 값을 콘트롤러에 출력하는 단계, 콘트롤러에서 상기의 신호값에 의해 출력 파워 P = V * A를 연산하는 단계, Eo(T) = Eo(30)*(1 + α(T - 30))을 연산하는 단계, 연산된 P 값과 Eo(T)를 이용하여 (P*△t / (Eo(T) + m/P))를 연산하는 단계, SOC = SOC - (P*△t / (Eo(T) + m/P))를 연산하는 단계 및 연산된 SOC 값을 배터리 잔존 용량 표시부에 표시하는 단계를 포함하는 것을 특징으로 하는 전기 자동차의 배터리 수명 예측 방법.A method of predicting battery life of an electric vehicle, the method comprising: outputting signal values measured at a temperature sensor, a voltage sensor, and a current sensor to a controller; calculating output power P = V * A based on the signal values at the controller; Calculating Eo (T) = Eo (30) * (1 + α (T-30)), using (P * Δt / (Eo (T) + m) using the calculated P value and Eo (T) / P)), calculating SOC = SOC-(P * Δt / (Eo (T) + m / P)) and displaying the calculated SOC value on the battery remaining capacity display. Battery life prediction method of an electric vehicle, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950034985A 1995-10-11 1995-10-11 Apparatus and method for measuring remaining capacity of electric vehicle KR970024438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950034985A KR970024438A (en) 1995-10-11 1995-10-11 Apparatus and method for measuring remaining capacity of electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950034985A KR970024438A (en) 1995-10-11 1995-10-11 Apparatus and method for measuring remaining capacity of electric vehicle

Publications (1)

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KR970024438A true KR970024438A (en) 1997-05-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020090755A (en) * 2001-05-29 2002-12-05 주식회사 이랜텍 Method for calibration remain capacity of smart battery
KR100756836B1 (en) * 2005-06-30 2007-09-07 주식회사 엘지화학 Method for estimating soc of a battery and battery management system using the same
KR101273060B1 (en) * 2011-03-28 2013-06-10 기아자동차주식회사 Subsidiary Battery Management Method for Electric Vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020090755A (en) * 2001-05-29 2002-12-05 주식회사 이랜텍 Method for calibration remain capacity of smart battery
KR100756836B1 (en) * 2005-06-30 2007-09-07 주식회사 엘지화학 Method for estimating soc of a battery and battery management system using the same
KR101273060B1 (en) * 2011-03-28 2013-06-10 기아자동차주식회사 Subsidiary Battery Management Method for Electric Vehicle

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