KR20030027225A - Method for controlling discharge current of a battery for vehicles - Google Patents
Method for controlling discharge current of a battery for vehicles Download PDFInfo
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- KR20030027225A KR20030027225A KR1020010057610A KR20010057610A KR20030027225A KR 20030027225 A KR20030027225 A KR 20030027225A KR 1020010057610 A KR1020010057610 A KR 1020010057610A KR 20010057610 A KR20010057610 A KR 20010057610A KR 20030027225 A KR20030027225 A KR 20030027225A
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- battery
- discharge current
- control unit
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/16—Regulation of the charging current or voltage by variation of field
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
본 발명은 차량의 배터리 방전전류의 제어방법에 관한 것으로, 특히 차량에 전기부하가 많이 걸린 상태에서 도심정체 지역을 주행 시에 발생할 수 있는 급격한 배터리 방전을 사전에 방지할 수 있는 제어방법에 관한 것이다.The present invention relates to a control method of a battery discharge current of a vehicle, and more particularly, to a control method that can prevent a sudden battery discharge that may occur when driving in a city congestion area in a state where the vehicle is subjected to a lot of electrical load. .
자동차의 모든 전기,전자장치의 전력 공급은 배터리와 발전기에 의해서 전원 시스템이 실행된다. 배터리는 엔진을 시동시키는 스타팅 모터를 구동시키는 것이 가장 큰 역할이며, 엔진이 정지된 상태에서 작동시키고자 하는 전장품에 일시적으로 전력을 공급하는 것과 전자제어유니트의 메모리에 기억된 데이터를 보유하기 위한 백업 전원으로도 중요한 역할을 한다.The power supply for all the electrical and electronic devices in the car is powered by batteries and generators. The battery plays a major role in driving the starting motor that starts the engine. It is a backup to temporarily store power in the electronic control unit and to store the data stored in the electronic control unit. Also plays an important role as a power source.
엔진에 의해 구동되는 발전기는 엔진의 크랭크 풀리로부터 V벨트에 의해서 구동되는 올터네이터로서 발전 능력은 엔진 회전수에 의존한다. 전기부하가 올터네이터의 발전량보다 많을 때에는 배터리가 부족분을 공급하여 작동에 지장이 없도록 하며, 발전량이 전기 부하보다 많을 때에는 배터리가 충전된다.The generator driven by the engine is an alternator driven by a V-belt from the crank pulley of the engine and the power generation capacity depends on the engine speed. When the electric load is greater than the alternator's power generation, the battery supplies a shortage so that it does not interfere with operation. When the power generation is higher than the electric load, the battery is charged.
최근 운전자와 승객의 편의를 위하여 전장품의 사용이 늘어나고 있으며, 이러한 차량의 전기 부하량의 증가에 따라 보다 용량이 큰 배터리를 필요로 하게 된다.Recently, the use of electronic equipment for the convenience of drivers and passengers is increasing, and as the electric load of the vehicle increases, a larger capacity battery is required.
차량의 전기 부하량은 주행조건, 도로상황에 따라 변화하게 되며, 올터네이터와 배터리로 이루어진 차량의 충전계통은 안정적인 전기량을 공급하기 위하여 적정용량이 설정된다.The electric load of the vehicle is changed according to driving conditions and road conditions, and the charging system of the vehicle consisting of an alternator and a battery is set with an appropriate capacity to supply a stable amount of electricity.
실주행 조건에서 충전계통에 악영향을 미치는 조건으로는 정체지역을 주행하거나, 기온이 높거나, 과도한 전기부하가 작용하는 경우 등이 있을 수가 있다. 이러한 상황은 최근 들어 도심 정체지역에서 쉽게 접하게 되며, 이 같은 조건이 장시간 지속되게 되면 배터리의 방전에 의해 차량이 정지할 수도 있다. 따라서, 이러한 전기부하의 특성을 고려하여 차량에 필요한 적정한 충전계통의 용량을 설정하고 있으나, 최악의 정체지역과 같은 조건에서 배터리의 방전을 막을 수는 없게 된다.The conditions that adversely affect the charging system under running conditions may include driving in a congested area, high temperature, or excessive electric load. This situation is easily encountered recently in urban congestion areas, and if such conditions persist for a long time, the vehicle may be stopped by battery discharge. Therefore, in consideration of the characteristics of the electric load is set the capacity of the appropriate charging system required for the vehicle, but it is impossible to prevent the discharge of the battery under the conditions such as the worst congestion area.
이하 구체적으로 레저용(RV) 차량의 충전계통에 방전특성을 실측 데이터를 통하여 살펴보면 다음과 같다.Hereinafter, the discharge characteristics of the charging system of the recreational vehicle (RV) vehicle will be described as follows.
[표 1]은 레저용(RV) 차량에 구비된 오디오, 램프, 에어컨디셔너(AC)와 같은 전기부하를 실측하여 구한 데이터로서, 아이들 상태에서 올터네이터의 출력전류는 45A이며, 상기 방전전류는 아이들 상태에서 배터리를 통해 방전되는 전류의 값을 나타낸다. 상기 배터리 지속시간은 배터리의 용량이 48AH인 경우에 그 배터리의 용량을 아이들 상태에서 배터리를 통해 방전되는 전류의 값으로 나누어 구한 배터리의 지속시간을 시간(H) 단위로 구한 것이다.Table 1 shows data obtained by measuring electric loads such as audio, lamps, and air conditioners (AC) provided in a recreational vehicle. The output current of an alternator is 45 A in an idle state, and the discharge current is idle. Indicates the value of the current discharged through the battery in the state. The battery duration is obtained by dividing the capacity of the battery by the value of the current discharged through the battery in the idle state when the battery capacity is 48AH.
[표 1]과 같이 차량에 전기부하가 작용하는 상태에서 차량이 아이들 상태에 있게 되면, 배터리 방전이 발생하게 되는 것을 알 수가 있다. 특히, 에어컨디셔너(AC)의 출력을 높이게 되면, 그에 따라 방전 전류량도 커지면서 배터리의 지속시간이 급격히 짧아지게 된다.As shown in Table 1, when the vehicle is in the idle state while the electric load is applied to the vehicle, it can be seen that the battery discharge occurs. In particular, when the output of the air conditioner (AC) is increased, the duration of the battery is drastically shortened as the amount of discharge current increases accordingly.
즉 하계 야간과 같이 차량에 전기부하가 많이 걸린 상태에서 도심정체 지역에서 정체가 장시간 지속되는 경우에는 배터리의 급격한 방전이 발생할 수가 있게 된다.In other words, when the traffic jams in the urban area for a long time in a state where the electric load is heavily applied to the vehicle such as summer night, the battery may be suddenly discharged.
본 발명은 상기의 결점을 해소하기 위한 것으로, 차량에 전기부하가 많이 걸린 상태에서 도심정체 지역을 주행 시에 발생할 수 있는 급격한 배터리 방전을 방지할 수 있는 배터리 방전전류의 제어방법을 제공하고자 한다.The present invention is to solve the above drawbacks, and to provide a control method of a battery discharge current that can prevent a sudden battery discharge that can occur when driving in a city congestion area in a state where a lot of electric load on the vehicle.
이러한 본 발명은 배터리의 방전 전류값을 측정하기 위한 전자제어유니트와, 이 전자제어유니트에 의해 제어되는 에어컨제어유니트로 구성되어 배터리 방전전류를 제어하기 위한 방법에 있어서, 전자제어유니트에 의해 배터리의 방전전류를 감지하는 제1단계와; 상기 방전전류값을 이용하여 배터리의 지속시간을 산출하는 제2단계와; 배터리의 지속시간이 기설정된 시간보다 짧은 경우에는 에어컨디셔너의 소비 전류를 낮추도록 상기 에어컨제어유니트를 제어하는 제3단계로써 달성된다.The present invention comprises an electronic control unit for measuring the discharge current value of the battery, and an air conditioning control unit controlled by the electronic control unit, the method for controlling the battery discharge current, the electronic control unit of the battery Detecting a discharge current; Calculating a duration of a battery using the discharge current value; When the duration of the battery is shorter than the predetermined time, it is achieved as a third step of controlling the air conditioner control unit to lower the current consumption of the air conditioner.
도 1은 본 발명의 배터리 방전전류 제어를 위한 충전계통의 구성도,1 is a configuration diagram of a charging system for controlling a battery discharge current of the present invention;
도 2는 본 발명에 따른 배터리 방전전류의 제어 흐름도.2 is a control flowchart of a battery discharge current according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 전기부하11 : 에어컨디셔너10: electric load 11: air conditioner
20 : 배터리30 : 전류계20: battery 30: ammeter
40 : 올터네이터50 : 전자제어유니트40: alternator 50: electronic control unit
60 : 에어컨제어유니트60: air conditioner control unit
도 1 및 도 2는 본 발명에 관한 것으로, 도 1은 본 발명의 배터리 방전전류제어를 위한 충전계통의 구성도이며, 도 2는 본 발명에 따른 배터리 방전전류의 제어 흐름도이다.1 and 2 relates to the present invention, Figure 1 is a block diagram of a charging system for controlling the battery discharge current of the present invention, Figure 2 is a flow chart of the control of the battery discharge current according to the present invention.
본 발명의 실시예를 첨부 도면을 참고하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1에 도시된 바와 같이 차량에 구비되는 엔진, 오디오, 라이트, 에어컨디셔너 등과 같은 각종 전기부하(10)에 전원을 공급하기 위한 배터리(20) 및 올터네이터(40)가 구비되며, 상기 배터리(20)의 방전 전류를 측정하기 위한 전류계(30)가 구비된다.As shown in FIG. 1, a battery 20 and an alternator 40 for supplying power to various electric loads 10 such as an engine, audio, light, and air conditioner provided in a vehicle are provided. The battery 20 An ammeter 30 for measuring the discharge current of N.
상기 전류계(30)에서 측정된 방전 전류는 전자제어유니트(50)에 전달되며, 이 전자제어유니트(50)는 측정된 방전 전류값에 따라 에어컨제어유니트(60)에 제어신호를 출력하게 된다.The discharge current measured by the ammeter 30 is transmitted to the electronic control unit 50, the electronic control unit 50 outputs a control signal to the air conditioning control unit 60 in accordance with the measured discharge current value.
상기 에어컨제어유니트(60)는 에어컨디셔너(11)를 제어하게 되며, 제어신호에 따라 에어컨디셔너(11)의 블로어의 구동 전류를 제어하여 에어컨디셔너(11)의 소비 전류를 제어하게 된다.The air conditioner control unit 60 controls the air conditioner 11 and controls the drive current of the blower of the air conditioner 11 according to the control signal to control the current consumption of the air conditioner 11.
이하 본 발명의 배터리 방전전류의 제어방법은 다음과 같다.Hereinafter, the control method of the battery discharge current of the present invention is as follows.
도 2에 도시된 바와 같이 제1단계(S10)에서 전자제어유니트는 배터리의 방전전류값을 측정하는 과정이다.As shown in FIG. 2, in the first step S10, the electronic control unit is a process of measuring a discharge current value of a battery.
제2단계(S20)는 상기 제1단계(S10)에서 측정된 방전 전류값을 이용하여 배터리의 지속시간을 산출하는 과정이다. 이 과정에서는 배터리의 용량을 측정된 전류값으로 나누어 배터리지속시간을 구할 수가 있다. 예를 들어 차량에 구비된 배터리의 용량이 48AH인 경우에 측정된 방전 전류값이 24A이면, 산출된 배터리 지속시간은 2시간(H)이 된다.The second step (S20) is a process of calculating the duration of the battery using the discharge current value measured in the first step (S10). In this process, the battery duration can be obtained by dividing the battery capacity by the measured current value. For example, if the measured discharge current value is 24A when the battery capacity of the vehicle is 48AH, the calculated battery duration is 2 hours (H).
제3단계(S30)는 배터리의 지속시간과 기설정된 배터리 지속시간을 서로 비교하여 방전 전류를 제어하는 과정으로, 전자제어유니트에는 비교판단의 기준이 되는 시간이 기설정되어 저장된 상태이며, 이 기설정된 시간과, 상기 제2단계(S20)에서 측정하여 산출된 배터리 지속시간을 서로 비교하는 단계(S31)와; 비교 후에 배터리 지속시간이 기설정된 시간보다 짧은 경우에는 에어컨디셔너의 소비 전류를 낮추도록 에어컨제어유니트를 제어하는 단계(S32)로 이루어진다.The third step (S30) is a process of controlling the discharge current by comparing the duration of the battery and the predetermined battery duration with each other, the electronic control unit is a state that is set and stored as a reference time of the comparison determination is already set, Comparing the set time with the battery duration calculated in the second step S20 (S31); If the battery duration is shorter than the preset time after the comparison, the air conditioning control unit is controlled to lower the current consumption of the air conditioner (S32).
예를 들어 배터리의 방전 전류를 낮추기 위한 배터리 지속시간 기준을 3시간으로 설정하여 전자제어유니트에 저장한 상태에서 측정 산출된 배터리 지속시간이 2시간으로 나오게 되면, 배터리 방전 전류를 낮추기 위한 제어를 하게 된다. 즉, 전자제어유니트는 에어컨제어유니트에 제어신호를 출력하게 되며, 에어컨제어유니트는 이 제어신호에 따라 에어컨디셔너의 블로어를 제어하여 에어컨디셔너의 단수를 하향 동작하도록 함으로써 배터리 방전 전류를 낮추게 된다.For example, if the battery duration set to 3 hours is set to 3 hours to reduce the discharge current of the battery, and the measured battery duration is 2 hours, the control to lower the battery discharge current is performed. do. That is, the electronic control unit outputs a control signal to the air conditioning control unit, and the air conditioning control unit controls the blower of the air conditioner according to the control signal to lower the number of stages of the air conditioner to lower the battery discharge current.
이와 같이 이루어지는 배터리 방전 전류 제어는 차량의 주행 시에 지속적으로 배터리 방전 전류를 제어함으로써 설정된 시간 이상 배터리 지속시간이 유지되도록 할 수가 있다.The battery discharge current control in this manner can maintain the battery duration for a predetermined time or more by continuously controlling the battery discharge current when the vehicle is running.
이상과 같은 본 발명의 배터리 방전전류의 제어방법은 차량에 전기부하가 많이 걸린 상태에서 도심정체 지역을 주행 시에 발생할 수 있는 급격한 배터리 방전을 사전에 방지할 수가 있는 효과가 있는 발명인 것이다.The control method of the battery discharge current of the present invention as described above is an invention that has an effect that can prevent in advance a sudden battery discharge that can occur when driving in a city congestion area in a state where a lot of electric load on the vehicle.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010057610A KR20030027225A (en) | 2001-09-18 | 2001-09-18 | Method for controlling discharge current of a battery for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010057610A KR20030027225A (en) | 2001-09-18 | 2001-09-18 | Method for controlling discharge current of a battery for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20030027225A true KR20030027225A (en) | 2003-04-07 |
Family
ID=29562004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010057610A KR20030027225A (en) | 2001-09-18 | 2001-09-18 | Method for controlling discharge current of a battery for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20030027225A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08140207A (en) * | 1994-11-09 | 1996-05-31 | Fuji Heavy Ind Ltd | Controller for electric motor vehicle |
| JPH08205302A (en) * | 1995-01-30 | 1996-08-09 | Hitachi Ltd | Air conditioner for electric vehicle |
| KR970015284A (en) * | 1995-09-21 | 1997-04-28 | 이형곤 | Vehicle Peripherals and Cars |
| KR19980015933A (en) * | 1996-08-24 | 1998-05-25 | 양재신 | Vehicle battery discharge prevention circuit |
| KR20000020409A (en) * | 1998-09-21 | 2000-04-15 | 에릭 발리베 | Apparatus for preventing over-discharge of vehicle battery |
| KR20000007548U (en) * | 1998-10-01 | 2000-05-06 | 홍종만 | Battery discharge prevention circuit |
-
2001
- 2001-09-18 KR KR1020010057610A patent/KR20030027225A/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08140207A (en) * | 1994-11-09 | 1996-05-31 | Fuji Heavy Ind Ltd | Controller for electric motor vehicle |
| JPH08205302A (en) * | 1995-01-30 | 1996-08-09 | Hitachi Ltd | Air conditioner for electric vehicle |
| KR970015284A (en) * | 1995-09-21 | 1997-04-28 | 이형곤 | Vehicle Peripherals and Cars |
| KR19980015933A (en) * | 1996-08-24 | 1998-05-25 | 양재신 | Vehicle battery discharge prevention circuit |
| KR20000020409A (en) * | 1998-09-21 | 2000-04-15 | 에릭 발리베 | Apparatus for preventing over-discharge of vehicle battery |
| KR20000007548U (en) * | 1998-10-01 | 2000-05-06 | 홍종만 | Battery discharge prevention circuit |
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