KR970036355A - A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE - Google Patents

A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE Download PDF

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Publication number
KR970036355A
KR970036355A KR1019950061620A KR19950061620A KR970036355A KR 970036355 A KR970036355 A KR 970036355A KR 1019950061620 A KR1019950061620 A KR 1019950061620A KR 19950061620 A KR19950061620 A KR 19950061620A KR 970036355 A KR970036355 A KR 970036355A
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KR
South Korea
Prior art keywords
temperature
battery
charging
charger
signal
Prior art date
Application number
KR1019950061620A
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Korean (ko)
Inventor
원동훈
Original Assignee
한승준
기아자동차 주식회사
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.)
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Publication date
Application filed by 한승준, 기아자동차 주식회사 filed Critical 한승준
Priority to KR1019950061620A priority Critical patent/KR970036355A/en
Publication of KR970036355A publication Critical patent/KR970036355A/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
    • 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

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

본 발명은 전기자동차용 충전기의 온도감지에 의한 충전제어시스템에 관한 것으로, 온도센서(5,6)를 통해 전지의 온도와 외기온도를 측정하고 신호변환기(2a)와 연산부(2b) 및 제어부(2c)를 갖춘 마이크로컴퓨터(2)에서 전지온도와 외기온도간의 온도차 및 그 비를 구하여 임계값에 대해 튜티팩터(duty factor)를 변화시키고 충전전류를 제어하게 되는 시퀀스를 반복하는 시스템으로 이루어짐으로써, 전지의 과열과 과충전이 방지되어 전지의 손상을 막을 수 있으므로 전지의 수명과 내구성이 향상됨은 물론 충전의 효율성이 증가되어 궁극적으로는 전지의 교체에 따르는 유지 및 보수비의 절감을 꾀할 수 있게 되며, 전기자동차의 성능향상에 이바지하게 되는 것이다.The present invention relates to a charging control system by sensing the temperature of an electric vehicle charger, and measures the temperature of the battery and the outside air temperature through the temperature sensors (5,6), the signal converter (2a) and the calculation unit (2b) and the control unit ( In the microcomputer 2 equipped with 2c), the temperature difference between the battery temperature and the outside temperature and the ratio thereof are obtained, and the system is configured to repeat the sequence of changing the duty factor and controlling the charging current with respect to the threshold value. Overheating and overcharging of the battery can be prevented to prevent damage to the battery, thereby improving the life and durability of the battery as well as increasing the efficiency of charging, ultimately reducing the maintenance and repair costs associated with battery replacement. It will contribute to improving the performance of the car.

Description

전기자동차용 충전기의 온도감지에 의한 충전제어시스템 (A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE)A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는본 발명에 의한 실시예를 도시한 계략적인 구성도,1 is a schematic configuration diagram showing an embodiment according to the present invention;

제2도는 본 발명에 의한 충전제어시스템의 마이크로컴퓨터에서 행하여지는 알고리즘에 대한 순서도이다.2 is a flowchart of an algorithm performed in the microcomputer of the charge control system according to the present invention.

Claims (1)

차내에 동력공급장치인 전지(1)가 내장되고, 이 전지(1)는 차의 선단부에 구비된 충전포트(7)에 충전케이블(8)을 매개로 접속되며, 상기 충전포트(7)에 외부의 충전기(9)로부터 충전케이블(8')을 통해 전력을 충전받게 되는 전기자동차의 충전시스템에 있어서, 상기 전지(1)에 취부되어 전지(1)내의 온도를 측정, 감지하게 되는 전지온도센서(5)와, 상기 전지(1)의 외부에 부착되어 외기의 온도를 측정, 감지하는 외기온도센서(6)와, 상기 온도센서(5,6)들로부터 전달되는 전지온도와 외기온도의 데이타에 대한 아날로그신호를 디지탈신호로 변환하는 신호변환기(2a)와, 이 신호변환기(2a)로부터 신호를 받아 전지의 온도(Tb)와 외기온도(Tc)간의 온도차(△T)및 외기온도(Tc)에 대한 전지온도(TB)의 비(TR)를 산출하는 연산부(2b) 및, 이 연산부(2b)로부터 산출결과를 받아 외기온도에 대한 전지온도의 온도비(TR)가 0.5미만일 경우에는 충전기(9)로 신호를 보내어 최초에 송전되던 충전전류가 지속되도록 하는 반면, 온도비(TR)가 0.5이상이 되면 듀티팩터 D*를 D*=D(1-TR)의 식에 의해 변화시켜 충전전류 I*를 I*=(I-D*)의 식에 따라 감소시킴으로써 상기 온도비(TR)가 0.5미만이 되도록 충전전류를 송전시키게 하는 제어부(2c)등으로 구성되는 마이크로컴퓨터(2)와, 상기 전지(1)의 양극(1a)에 충전기(9)와 연결된 충전케이블(8)을 매개로 접속되어 전지(1)의 전류상태를 감지하는 전류센서(4)와, 상기 전지센서(5,6)와 마이크로컴퓨터(2) 및 전류센서(4)들을 연결시키는 콘넥터(3)와, 상기 충전기(9)에 내장되어 상기 전지(1)의 전극 (1a,1a')에 충전케이블(8,8')을 매개로 연결되는 전력회로(9a) 및 상기 전력회로(9a)와 더불어 충전기(9)에 내장되어 상기제어부(2c)로부터 신호를 받아 그 신호에 따라 적절한 충전전류를 송전하도록 전력회로(9a)를 제어하는 마이크로 컴퓨터(9b)등으로 이루어져, 전지(1)에 대한 충전기(9)의 충전전류를 제어하도록 되는 전기자동차용 충전기의 온도감지에 의한 충전제어시스템.The battery 1, which is a power supply device, is built into the vehicle, and the battery 1 is connected to the charging port 7 provided at the tip of the vehicle via a charging cable 8, and to the charging port 7 In a charging system of an electric vehicle in which electric power is charged from an external charger 9 through a charging cable 8 ', the battery temperature is mounted on the battery 1 to measure and sense the temperature in the battery 1. A sensor 5, an outside air temperature sensor 6 attached to the outside of the battery 1 to measure and detect the temperature of the outside air, and a battery temperature and the outside air temperature transferred from the temperature sensors 5 and 6, respectively. A signal converter 2a for converting an analog signal for data into a digital signal, and a temperature difference ΔT and an ambient temperature between the battery temperature Tb and the ambient temperature Tc by receiving a signal from the signal converter 2a. A calculation unit 2b for calculating the ratio T R of the battery temperature T B to Tc, and the calculation result is received from the calculation unit 2b. If the temperature ratio (T R ) of the battery temperature to the outside temperature is less than 0.5, a signal is sent to the charger 9 to maintain the initial charging current while the duty ratio is greater than 0.5 when the temperature ratio T R is 0.5 or more. The factor D * is changed by the formula D * = D (1-T R ) and the charging current I * is reduced by the formula of I * = (ID * ) so that the temperature ratio T R is less than 0.5. The microcomputer 2 comprising the control unit 2c for transmitting the charging current and the like are connected to the positive electrode 1a of the battery 1 via a charging cable 8 connected to the charger 9 via a battery ( A current sensor 4 for detecting a current state of 1), a connector 3 connecting the battery sensors 5, 6, the microcomputer 2, and the current sensors 4, and the charger 9 In addition to the power circuit 9a and the power circuit 9a connected to the electrodes 1a and 1a 'of the battery 1 via charging cables 8 and 8', the charger 9 And a microcomputer 9b for controlling the power circuit 9a so as to receive a signal from the control unit 2c and transmit an appropriate charging current in accordance with the signal, thereby charging the charger 9 to the battery 1. Charge control system by sensing the temperature of the electric vehicle charger to control the current. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019950061620A 1995-12-28 1995-12-28 A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE KR970036355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950061620A KR970036355A (en) 1995-12-28 1995-12-28 A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950061620A KR970036355A (en) 1995-12-28 1995-12-28 A CHARGING CONTROL SYSTEM BY MEANS OF TEMPERATURE SENSORS IN A CHARGER FOR AN ELECTROMOBILE

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010059086A (en) * 1999-12-30 2001-07-06 이계안 Battery charge device and method for electric vehicle
US20220348083A1 (en) * 2019-06-28 2022-11-03 Man Truck & Bus Se Vehicle comprising an electrically conductive vehicle part that can be used as a resistor element for converting electrical energy into heat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010059086A (en) * 1999-12-30 2001-07-06 이계안 Battery charge device and method for electric vehicle
US20220348083A1 (en) * 2019-06-28 2022-11-03 Man Truck & Bus Se Vehicle comprising an electrically conductive vehicle part that can be used as a resistor element for converting electrical energy into heat

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