KR20110052384A - Apparatus for detecting battery voltage of large vehicle - Google Patents

Apparatus for detecting battery voltage of large vehicle Download PDF

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KR20110052384A
KR20110052384A KR1020090109383A KR20090109383A KR20110052384A KR 20110052384 A KR20110052384 A KR 20110052384A KR 1020090109383 A KR1020090109383 A KR 1020090109383A KR 20090109383 A KR20090109383 A KR 20090109383A KR 20110052384 A KR20110052384 A KR 20110052384A
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battery
voltage
battery voltage
sensing
vehicle
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KR1020090109383A
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Korean (ko)
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KR101567318B1 (en
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이상용
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현대모비스 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

Abstract

PURPOSE: An apparatus for detecting the battery voltage of a vehicle is provided to detect the voltage range of a battery system with 24V which is used for large sized vehicles including trucks or buses. CONSTITUTION: A battery part serially connects a first battery(1) and a second battery(2). A battery voltage sensing part(3) connects a wiring, which is branched from the serial connection node of the first battery and the second battery, with a power voltage end. The plus terminal of the battery part is in connection with a sensing voltage end through external distributing resistance. The external distributing resistance is the same as the internal distribution resistance of the battery voltage sensing part.

Description

차량의 배터리 전압 감지 장치{APPARATUS FOR DETECTING BATTERY VOLTAGE OF LARGE VEHICLE}Battery Voltage Sensing Device for Vehicles {APPARATUS FOR DETECTING BATTERY VOLTAGE OF LARGE VEHICLE}

본 발명은 차량의 배터리 전압 감지 장치에 관한 것으로, 더 상세하게는 대형차량용 배터리에 적용 가능하도록 설계한 차량의 배터리 전압 감지 장치에 관한 것이다.The present invention relates to a battery voltage sensing device for a vehicle, and more particularly, to a battery voltage sensing device for a vehicle designed to be applicable to a battery for a large vehicle.

최근, 전자제어기술의 비약적인 발전에 따라 자동차에서도 기계적인 방법에 의해 동작하던 각종 장치들이 운전자의 편리성 및 운행의 안전성 등의 이유로 전기적인 방법에 의해 구동되고 있으며, 자동차의 시스템은 점차 고도화되고 최첨단화되어 가고 있다.In recent years, with the rapid development of electronic control technology, various devices that were operated by mechanical methods in automobiles are being driven by electrical methods due to driver's convenience and driving safety. It is getting angry.

최근 차량에는 배터리 전압을 감지하기 위한 배터리 전압 감지 장치를 구비한다.Recently, vehicles have a battery voltage sensing device for sensing battery voltage.

이러한 배터리 전압 감지 장치는 12V 배터리의 (+)단자에서 배선이 나와서 배터리 센서 내부에서 2개로 분기된다. 하나는 배터리 전압 감지부(ASIC)의 전원공 급용으로 나머지 하나는 배터리 전압을 센싱하는 용도로 분기된다.These battery voltage sensing devices are wired from the positive terminal of the 12V battery and branched into two inside the battery sensor. One branch is used for power supply of the battery voltage sensing unit (ASIC) and the other branch is used for sensing the battery voltage.

상기한 기술구성은 본 발명의 이해를 돕기 위한 배경기술로서, 본 발명이 속하는 기술분야에서 널리 알려진 종래기술을 의미하는 것은 아니다.The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

트럭이나 버스와 같은 대형차량은 12V 배터리 2개를 직렬 연결한 24V 배터리를 사용한다.Large vehicles such as trucks and buses use 24V batteries in series with two 12V batteries.

본 발명은 대형차량용 배터리에 적용 가능하도록 설계한 차량의 배터리 전압 감지 장치를 제공하는데 그 목적이 있다.It is an object of the present invention to provide a battery voltage sensing device for a vehicle designed to be applicable to a battery for a large vehicle.

전술한 목적을 달성하기 위해 창안된 본 발명의 구성은 다음과 같다.The configuration of the present invention, which is invented to achieve the above-described object, is as follows.

본 발명에 의한 차량의 배터리 전압 감지 장치는 제1배터리와 제2배터리가 직렬 연결된 배터리부와, 상기 제1배터리와 상기 제2배터리의 직렬 연결 노드에서 분기된 배선이 전원전압단에 연결되고, 상기 배터리부의 (+)단자에서 분기된 배선이 외부분압저항을 통해 센싱전압단에 연결되는 배터리 전압 감지부를 포함하는 것을 특징으로 한다.The battery voltage sensing device of a vehicle according to the present invention includes a battery unit in which a first battery and a second battery are connected in series, and wirings branched from a series connection node of the first battery and the second battery are connected to a power supply voltage terminal. The wiring branched from the positive terminal of the battery unit may include a battery voltage sensing unit connected to the sensing voltage terminal through an external voltage divider resistor.

본 발명에서, 상기 외부분압저항은 상기 배터리 전압 감지부의 내부분압저항 값과 동일한 저항 값을 갖도록 구성한 것을 특징으로 한다.In the present invention, the external voltage divider is configured to have a resistance value equal to the internal voltage divider value of the battery voltage sensing unit.

상술한 바와 같이, 본 발명은 24V 배터리를 사용하는 트럭이나 버스와 같은 대형차량에 배터리 전압 감지 장치를 적용함으로써 24V의 배터리 시스템의 전압범위도 센싱 가능하게 한다.As described above, the present invention enables the sensing of a voltage range of a 24V battery system by applying a battery voltage sensing device to a large vehicle such as a truck or a bus using a 24V battery.

이하, 실시예를 통하여 본 발명을 더욱 상세히 설명하기로 한다. 이들 실시예는 단지 본 발명을 예시하기 위한 것이며, 본 발명의 권리 보호 범위가 이들 실시예에 의해 제한되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for illustrating the present invention, and the scope of rights of the present invention is not limited by these embodiments.

이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

도 1은 본 발명의 일 실시예에 따른 차량의 배터리 전압 감지 장치의 구성을 설명하기 위한 회로도이다.1 is a circuit diagram illustrating a configuration of an apparatus for detecting a battery voltage of a vehicle according to an exemplary embodiment of the present invention.

도 1을 참고하면, 본 실시예에 따른 차량의 배터리 전압 감지 장치는 12V용 제1배터리(1)와, 제1배터리(1)와 직렬 연결된 12V용 제2배터리(2)와, 배터리 전압 감지부(3)를 포함한다.Referring to FIG. 1, the apparatus for detecting a battery voltage of a vehicle according to the present embodiment includes a first battery 1 for 12V, a second battery 2 for 12V connected in series with the first battery 1, and a battery voltage detection. Part 3 is included.

여기서, 배터리 전압 감지부(3)는 ASIC(ADuC703x)칩으로 전원전압단(VDD)에 제1배터리(1)의 (-)단자와 제2배터리(2)의 (+)단자에서 분기된 배선이 연결되고, 센싱전압단(VBAT)에 제1배터리(1)의 (+)단자에서 분기된 배선이 연결된다.Here, the battery voltage detecting unit 3 is an ASIC (ADuC703x) chip, and the wiring branched from the negative terminal of the first battery 1 and the positive terminal of the second battery 2 to the power supply voltage terminal VDD. This connection is connected, and the wiring branched from the positive terminal of the first battery 1 is connected to the sensing voltage terminal VBAT.

이러한 배터리 전압 감지부(3)는 제1배터리(1)와 제2배터리(2)로부터 분기된 배선을 통해 12V의 전원전압(VDD)을 공급받고, 제1배터리(1)로부터 분기된 배선을 통해 배터리 전압 감지를 위한 24V 전압을 입력받는다.The battery voltage detector 3 receives the power supply voltage VDD of 12 V through the wiring branched from the first battery 1 and the second battery 2, and disconnects the wiring branched from the first battery 1. It receives a 24V voltage for sensing battery voltage.

또한, 배터리 전압 감지부(3)의 센싱전압단(VBAT)에 연결되는 배선에는 외부분압저항(4)을 연결시켜 구성한다.In addition, an external voltage dividing resistor 4 is connected to a wire connected to the sensing voltage terminal VBAT of the battery voltage detector 3.

여기서, 외부분압저항(4) 값은 배터리 전압 감지부(3)의 내부분압저항(31) 값과 동일한 값을 갖는 저항으로 구성한다. 이때, 외부분압저항(4)은 고정밀저항이나 PCB에 저항을 트리밍 하는 방법을 사용하여 내부분압저항(31)과 동일한 값을 갖도록 한다.Here, the value of the external voltage divider 4 is composed of a resistor having the same value as the value of the internal voltage divider 31 of the battery voltage detector 3. At this time, the external voltage divider 4 has the same value as the internal voltage divider 31 by using a method of trimming the resistance to the high precision resistance or the PCB.

예를 들어, 배터리 전압 감지부(3)의 내부분압저항(31) R1+R2+R3 값이 3.36MΩ이면, 외부분압저항(4) R4 값도 3.36MΩ으로 구성한다. 결국, 배터리 전압 감지부(3)의 센싱전압단(VBAT)은 24V의 배터리 전압이 1/2로 감압되어 입력된다.For example, when the internal voltage divider resistor 31 R1 + R2 + R3 of the battery voltage detector 3 has a value of 3.36 MΩ, the external voltage divider resistor 4 R4 has a value of 3.36 MΩ. As a result, the sensing voltage terminal VBAT of the battery voltage detecting unit 3 is inputted after the battery voltage of 24V is reduced to 1/2.

이러한 배터리 전압 감지부(3)는 1/2로 감압된 배터리 전압을 입력받아 내부분압저항(31)에서 다시 분압하여 읽고, 내장된 CPU에서 두 배로 곱해서 배터리 전압을 연산하여 배터리 전압을 감지한다.The battery voltage sensing unit 3 receives the battery voltage reduced to 1/2 and divides the voltage by the internal voltage dividing resistor 31 again, reads it, multiplies by twice in the embedded CPU, and calculates the battery voltage to detect the battery voltage.

정리하면, 본 실시예에 의한 차량의 배터리 전압 감지 장치는 배터리 전압 감지부(3)의 전원전압단(VDD)에 제1배터리(1)의 (-)단자와 제2배터리(2)의 (+)단자에서 분기된 배선을 연결시키고, 센싱전압단(VBAT)에 제1배터리(1)의 (+)단자에서 분기된 배선을 연결시켜 구성하되, 센싱전압단(VBAT)에 연결되는 배선에는 배터리 전압 감지부(3)의 내부분압저항(31) 값과 동일한 값을 갖는 외부분압저항(4)으로 구성한다. In summary, the battery voltage sensing device of the vehicle according to the present embodiment is connected to the negative terminal of the first battery 1 and the second battery 2 at the power supply voltage terminal VDD of the battery voltage sensing unit 3. The wiring branched from the + terminal is connected, and the wiring branched from the (+) terminal of the first battery 1 is connected to the sensing voltage terminal VBAT, but the wiring connected to the sensing voltage terminal VBAT is connected to the sensing voltage terminal VBAT. The external voltage divider resistor 4 has the same value as the internal voltage divider resistor 31 of the battery voltage detector 3.

이와 같이 구성된 차량의 배터리 전압 감지 장치는 24V 배터리를 사용하는 트럭이나 버스와 같은 대형차량에 적용하여 24V의 배터리 시스템의 전압범위도 센싱 가능하게 함으로써 배터리 전압 상태에 따라 차량의 전기부하, 시동모터 및 발전기를 제어하는 시스템에 이용된다.The battery voltage sensing device of the vehicle configured as described above can be applied to a large vehicle such as a truck or a bus using a 24V battery, so that the voltage range of the 24V battery system can be sensed. Used in systems to control generators.

상술한 바와 같이 본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is merely exemplary, and various modifications and equivalent other embodiments of the present invention may be made by those skilled in the art. I understand that it is possible. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

도 1은 본 발명의 일 실시예에 따른 차량의 배터리 전압 감지 장치의 구성을 설명하기 위한 회로도이다.1 is a circuit diagram illustrating a configuration of an apparatus for detecting a battery voltage of a vehicle according to an exemplary embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 제1배터리 2 : 제2배터리1: First battery 2: Second battery

3 : 배터리 전압 감지부 4 : 외부분압저항3: battery voltage detection unit 4: external voltage resistance

31 : 내부분압저항 31: internal voltage resistance

Claims (2)

제1배터리와 제2배터리가 직렬 연결된 배터리부; 및A battery unit in which a first battery and a second battery are connected in series; And 상기 제1배터리와 상기 제2배터리의 직렬 연결 노드에서 분기된 배선이 전원전압단에 연결되고, 상기 배터리부의 (+)단자에서 분기된 배선이 외부분압저항을 통해 센싱전압단에 연결되는 배터리 전압 감지부를 포함하는 것을 특징으로 하는 차량의 배터리 전압 감지 장치.The battery voltage connected to the power supply voltage terminal is connected to the wiring branch connected in the series connection node of the first battery and the second battery, the battery voltage is connected to the sensing voltage terminal through the external voltage divider resistor Battery voltage sensing device of a vehicle comprising a detection unit. 제 1 항에 있어서, 상기 외부분압저항은The method of claim 1, wherein the external voltage divider resistance 상기 배터리 전압 감지부의 내부분압저항 값과 동일한 저항 값을 갖도록 구성한 것을 특징으로 하는 차량의 배터리 전압 감지 장치.The battery voltage sensing device of a vehicle, characterized in that configured to have a resistance value equal to the internal voltage divider resistance value of the battery voltage sensing unit.
KR1020090109383A 2009-11-12 2009-11-12 Apparatus for detecting battery voltage of large vehicle KR101567318B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013033409A1 (en) * 2011-09-01 2013-03-07 Echostar Technologies L.L.C. Detecting batteries with non-uniform drain rates

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4075176B2 (en) * 1998-10-27 2008-04-16 株式会社デンソー Voltage detection device for battery pack
JP4500121B2 (en) * 2004-07-14 2010-07-14 株式会社ルネサステクノロジ Battery voltage monitoring system
JP4942438B2 (en) * 2006-09-25 2012-05-30 三洋電機株式会社 Power supply for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013033409A1 (en) * 2011-09-01 2013-03-07 Echostar Technologies L.L.C. Detecting batteries with non-uniform drain rates
US9748784B2 (en) 2011-09-01 2017-08-29 Echostar Technologies L.L.C. Detecting batteries with non-uniform drain rates

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