KR100263331B1 - Apparatus and method for providing prohibition of icy frature for engine - Google Patents

Apparatus and method for providing prohibition of icy frature for engine Download PDF

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Publication number
KR100263331B1
KR100263331B1 KR1019960066770A KR19960066770A KR100263331B1 KR 100263331 B1 KR100263331 B1 KR 100263331B1 KR 1019960066770 A KR1019960066770 A KR 1019960066770A KR 19960066770 A KR19960066770 A KR 19960066770A KR 100263331 B1 KR100263331 B1 KR 100263331B1
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South Korea
Prior art keywords
engine
freezing
cooling water
state
battery
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KR1019960066770A
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Korean (ko)
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KR19980048217A (en
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문태성
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정몽규
현대자동차주식회사
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Priority to KR1019960066770A priority Critical patent/KR100263331B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2031/00—Fail safe
    • F01P2031/20—Warning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/04—Details using electrical heating elements

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: A heat supply device for preventing an engine from freezing and a method thereof are provided to prevent the damage of engine due to the freezing of cooling water by operating a hot wire or turning on an ignition switch according to a detected temperature of the cooling water. CONSTITUTION: A heat supply device for preventing engine freezing includes a bending element(40) attached to an outer wall of a cylinder block for checking a freezing state of cooling water, an engine electronic control unit(ECU)(30) for sensing the freezing state of the cooling water according to the voltage decrease of the bending element and controlling the operation of a warning part(50) and a hot wire(10), a relay switch(SW) for controlling power supply of a battery(20) to be supplied to the hot wire under the control of the engine ECU, the warning part for outputting a warning signal in case of freezing, and the hot wire attached to the outer wall of the cylinder block to be driven by the power from the battery for heating the cooling water.

Description

엔진의 동파방지를 위한 열 공급방법 및 그 장치Heat supply method and apparatus for preventing freezing of engine

본 발명은 엔진의 동파방지를 위한 열 공급방법 및 그 장치에 관한 것으로서, 더욱 상세하게는 엔진에서 발생하는 열을 흡수하기위해서 실린더 블록의 냉각 수로를 순환하는 냉각수의 결빙과 이로인한 엔진의 파손을 방지할 수 있도록 하는 엔진의 동파방지를 위한 열 공급방법 및 그 장치에 관한 것이다.The present invention relates to a heat supply method and apparatus for preventing freezing of an engine. More particularly, the present invention relates to freezing of cooling water circulating in a cooling channel of a cylinder block to absorb heat generated from an engine, and thus to engine damage. The present invention relates to a heat supply method and apparatus for preventing freezing of an engine to be prevented.

냉각장치는 엔진을 냉각하여 과열을 방지하고 또 적당한 온도로 유지하는 장치이다. 실린더 안의 연소가스의 온도는 2,000℃이상에 이르며, 이 열의 상당한 야이 실린더, 실린더 헤드, 피스톤, 밸브 등에 전도된다. 이러한 부분의 온도가 과도하게 높아지면 부품 재료의 강도가 저하되어 고장이 생기거나 수명이 단축되고 연소상태도 나빠져 노킹이나 조기점화가 발생하며 그 결과 기관의 출력이 저하된다. 또 냉각이 불완전한 상태에서 실린더 벽의 유막이 끊기는 등의 윤활기능의 저하와 오일의 변질 등으로 이상마모, 눌어붙는 등의 고장의 원인이 된다. 반대로 지나치게 냉각되면 연소에서 발생한 열량 가운데 냉각으로 손실되는 열량이 크기 때문에 엔진의 열효율이 낮아지고 연료소비량이 증가하는 등의 문제가 생기므로 엔진의 온도를 알맞게 유지하는 것이 냉각장치의 기능이다.The chiller is a device that cools the engine to prevent overheating and maintains it at an appropriate temperature. The temperature of the combustion gases in the cylinder reaches over 2,000 ° C, and this heat conducts considerable amounts of YAI cylinders, cylinder heads, pistons, valves, and the like. Excessively high temperatures in these parts reduce the strength of the part material, resulting in failure or shortening of the service life, worsening of combustion, leading to knocking and premature ignition, resulting in lower engine output. In addition, it may cause failures such as abnormal wear and seizure due to deterioration of lubrication function such as breakage of the oil film on the cylinder wall and deterioration of oil in the state of incomplete cooling. On the contrary, since excessive cooling results in a large amount of heat lost from the cooling, the heat efficiency of the engine is lowered and fuel consumption is increased. Therefore, the function of the cooling device is to maintain the engine temperature properly.

이러한 냉각장치의 일예에 대해서 제5도에 의거하여 살펴보면, 레이디에이터(101)와 엔진(102)의 수로에 충진되어 있는 냉각수가 순환펌프(WP)에 의해 순환되므로 엔진(102)에서 발생되는 열이 레이티에이터(101)에 발산되어 엔진(102)을 냉각시킨다. 물론, 엔진(102)의 온도가 일정온도이하로 떨어지면 엔진(102)의 효율이 떨어지는 것을 방지할 수 있도록 순환펌프(WP)를 정지시킨다.An example of such a cooling device will be described based on FIG. 5, since the coolant filled in the channels of the radiator 101 and the engine 102 is circulated by the circulation pump WP, and thus the heat generated by the engine 102. This is radiated to the radiator 101 to cool the engine 102. Of course, when the temperature of the engine 102 falls below a certain temperature, the circulation pump WP is stopped to prevent the efficiency of the engine 102 from dropping.

그러나 레이디에이터와 순환펌프 그리고 엔진을 순환하는 냉각수가 주변온도에 의해 결빙되는 경우 시동이 걸리지 않음은 물론이고 냉각수의 팽창으로 인하여 엔진이 파손되는 결점이 있다.However, if the radiator, the circulation pump, and the coolant circulating the engine are frozen by the ambient temperature, the engine is not damaged due to the expansion of the coolant.

이에 본 발명은 상기한 바와같은 결점을 제거하기 위해서 제안된 것으로, 냉각수의 온도가 빙점이하로 떨어져 냉각수가 결빙되면 실린더 블록과 냉각수를 가열시켜 실린더 블록의 냉각수로를 순환하는 냉각수의 결빙과 이로인한 엔진의 파손을 방지할 수 있도록 하는 엔진의 동파방지를 위한 열 공급방법 및 그 장치를 제공하고자 하는데 그 목적이 있는 것이다.Therefore, the present invention has been proposed to eliminate the above-mentioned defects, and when the temperature of the cooling water drops below the freezing point and the cooling water freezes, the cylinder block and the cooling water are heated to freeze the cooling water circulating through the cooling water path of the cylinder block. It is an object of the present invention to provide a heat supply method and apparatus for preventing freezing of an engine that can prevent engine damage.

제1도는 본 발명의 실시예에 따른 구성 블록도.1 is a block diagram illustrating an embodiment of the present invention.

제2도는 본 발명에 따른 열선의 설치상태를 보인 단면도.2 is a cross-sectional view showing the installation state of the heating wire according to the present invention.

제3도는 제2도의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

제4도는 본 발명의 동작상태를 보인 흐름도.4 is a flowchart showing an operating state of the present invention.

제5도는 종래의 냉각장치를 보인 정면도이다.5 is a front view showing a conventional cooling device.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 열선 11 : 시이트10: heating wire 11: sheet

12 : 실린더 블록 13 : 냉각수로12: cylinder block 13: coolant

20 : 배터리 30 :엔진 전자제어장치20: battery 30: engine electronic control device

40 : 벤딩소자 50 : 경고부40: bending element 50: warning part

60 : 배터리 충전량 감지센서 70 : 엔진시동장치60: battery charge sensor 70: engine starting device

80 : 기어위치센서 SW : 릴레이스위치80: gear position sensor SW: relay switch

이하 본 발명의 일 실시예에 따른 구성을 첨부된 예시도면과 함께 보다 상세히 설명하면 다음과 같다.Hereinafter, the configuration according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

제1도는 본 발명의 실시예에 따른 구성 블록도이고, 제2도는 본 발명에 따른 열선의 설치상태를 보인 단면도이며, 제3도는 제2도의 A-A선 단면도이고, 제4도는 본 발명의 동작상태를 보인 흐름도이다.1 is a block diagram according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the installation state of the heating wire according to the present invention, Figure 3 is a cross-sectional view of the AA line of Figure 2, Figure 4 is an operating state of the present invention Is a flow chart.

본 발명에 따른 구성은 제1도 내지 제3도에 도시한 바와같이 실린더 블록(12)의 외벽에 부착되어 냉각수의 결빙상태를 확인하는 벤딩소자(40)와, 벤딩소자(40)의 전압강하에 의해 냉각수의 결빙상태를 감지하고, 결빙시 경고부(50)와 열선(10)의 동작을 제어하는 엔진 전자제어장치(30)와, 이 엔진 전자제어장치(30)의 제어하에 열선(10)에 공급되는 배터리(20)의 전원을 단속하는 릴레이스위치(SW)와, 결빙시 경고신호를 출력하는 경고부(50)와, 실린더 블록(12)의 외벽에 부착되어 있으며 결빙시 배터리(20)의 전원으로 동작하여 냉각수를 가열하는 열선(10)으로 구성된다.According to the configuration of the present invention, as shown in FIGS. 1 to 3, the bending element 40 and the voltage drop of the bending element 40 are attached to the outer wall of the cylinder block 12 to check the freezing state of the coolant. The engine electronic controller 30 which senses the freezing state of the coolant and controls the operation of the warning unit 50 and the heating wire 10 at the time of freezing, and the heating wire 10 under the control of the engine electronic controller 30. Is attached to the outer wall of the cylinder block 12, and the relay switch (SW) for intermitting the power of the battery 20 supplied to the), the warning unit 50 for outputting a warning signal when freezing, and the battery 20 when freezing It is composed of a heating wire 10 for operating the power of the heating) to heat the cooling water.

제4도는 본 발명에 따른 동작상태를 보인 흐름도로서, 벤딩소자(40)를 통한 인가전압에 의해 냉각수의 결빙상태를 확인하는 단계와, 결빙시 소장시간 동안 경고신호를 출력하는 단계와, 소정시간 경과후 열선(10)에 전원을 공급하여 냉각수를 가열하는 단계를 수행함을 보이고 있다. 또한, 냉각수를 가열하면서 엔진 시동을 “온”상태로 한후 배터리(10)의 충전량을 감지하고, 배터리(10)가 완전 충전시 엔진 시동 “오프”상태를 절환하도록 한다. 특히 기어가 중립상태에 있을때에만 시동을 “온”하도록 하여 안전사고를 방지한다.4 is a flowchart showing an operating state according to the present invention, which includes checking a freezing state of the coolant by an applied voltage through the bending element 40, outputting a warning signal for a small time during freezing, and After the elapsed time, power is supplied to the heating wire 10 to perform the step of heating the cooling water. In addition, the engine start is turned on while the coolant is heated, and then the amount of charge of the battery 10 is sensed, and the battery 10 is switched to the engine start “off” state when the battery 10 is fully charged. In particular, it is only necessary to start the engine "on" when the gear is in the neutral state to prevent safety accidents.

이와같이 구성된 본 발명의 작용을 설명한다.The operation of the present invention configured as described above will be described.

실린더 블록(12)의 냉각수로(13)에 설치되어 있는 벤딩소자(40)는 외부에서 가해지는 압력에 의해 저항값이 달라진다. 즉 냉각수로(13)를 순환하는 냉각수가 결빙되어 벤딩소자(40)에 가해지는 압력이 가변되면서 전원이 벤딩소자(40)를 경유하여 엔진 전자제어장치(30)에 인가(S41)되면, 엔진 전자제어장치(40)는 전압값에 의해서 냉각수의 온도, 즉 냉각수의 결빙상태를 확인한다(S42).The bending element 40 provided in the cooling water passage 13 of the cylinder block 12 changes in resistance value by the pressure applied from the outside. That is, when the cooling water circulating in the cooling water passage 13 is frozen and the pressure applied to the bending element 40 is changed, the power is applied to the engine electronic controller 30 via the bending element 40 (S41). The electronic controller 40 checks the temperature of the coolant, that is, the freezing state of the coolant, based on the voltage value (S42).

그 결과 냉각수 결빙시 엔진 전자제어장치(30)는 경고부(50)를 구동시켜 결빙상태를 알리는 경고신호를 출력(S43)함과 동시에 경고신호의 출력시간을 카운팅한다. 그리고 소정시간이 경과(S44)하도록 경고신호를 출력하였는데도 불구하고, 운전자가 아무런 조치를 취하지 않았을때에는 냉각수(13)에 담겨진 냉각수를 가열하기위해서 릴레이스위치(SW)를 “온”상태로 절환한다. 이에따라 배터리(20)의 출력이 릴레이스위치(SW)를 경유하여 시이트(11)에 의해 실린더 블록(12)의 외벽에 부착되어 있는 열선(10)에 공급되어 열선(10)에 발열작용을 한다(S45). 그러므로 냉각수로(13)에 충전되어 있는 냉각수가 결빙되지 않는다.As a result, when the cooling water freezes, the engine electronic controller 30 drives the warning unit 50 to output a warning signal indicating the freezing state (S43) and counts the output time of the warning signal. When the driver does not take any action even though the warning signal is output for a predetermined time elapses (S44), the relay switch SW is switched to the "on" state to heat the coolant contained in the coolant 13. . Accordingly, the output of the battery 20 is supplied to the heating wire 10 attached to the outer wall of the cylinder block 12 by the sheet 11 via the relay switch SW to generate heat to the heating wire 10 ( S45). Therefore, the coolant filled in the coolant passage 13 does not freeze.

이어서 엔진 전자제어장치(30)는 벤딩소자(40)의 출력에 의해 냉각수의 결빙상태를 확인하고, 결빙상태가 지속되면 엔진 시동장치(70)에 시동신호를 출력하여 시동을 “온”상태로 절환함(S47)으로써, 엔진과 냉각수를 가열함을 물론이고, 열선(10)의 동작으로 방전된 배터리(20)의 전원을 재충전한다. 이때 엔진 전자제어장치(30)는 시동을 “온”상태로 절환하기이전에 기어위치센서(80)에 의해 감지되는 기어상태를 확인하고, 기어가 중립위치에 있을때에만 시동을 “온”상태로 절환하여 안전사고를 미연에 방지한다.Subsequently, the engine electronic controller 30 checks the freezing state of the coolant by the output of the bending element 40, and if the freezing state continues, outputs a start signal to the engine starter 70 to turn on the start. By switching (S47), as well as heating the engine and the coolant, the power of the battery 20 discharged by the operation of the heating wire 10 is recharged. At this time, the engine electronic controller 30 checks the gear state detected by the gear position sensor 80 before switching the start state to the "on" state, and starts the engine only in the "on" state when the gear is in the neutral position. Switch over to prevent accidents.

엔진을 동작시킨후 엔진 전자제어장치(30)는 배터리 충전량 감지센서(60)의 출력에 의해 배터리(20)의 충전량을 감지한다(S48). 그리고 배터리(20)에 전원이 완전히 충전(S49)된 경우 시동을 “오프”상태로 절환(S50)하고 대기상태를 유지한다.After operating the engine, the engine electronic controller 30 detects the charge of the battery 20 by the output of the battery charge sensor 60 (S48). When the battery 20 is fully charged (S49), the starter is switched to the “off” state (S50) and the standby state is maintained.

바람직하게는 열선(10)의 발열작용과 엔진의 작동으로 실린더 블록(12)의 냉각수로(13)에 충진되어있는 냉각수의 온도가 결빙되지않을 온도까지 상승되었을 때에는 엔진에서 발생되어 배터리(20)에 충전되는 배터리(20)의 충전량에 관계없이 시동을 “오프”상태로 절환하고 대기상태를 유지한다.Preferably, when the temperature of the coolant filled in the coolant passage 13 of the cylinder block 12 rises to a temperature at which freezing does not occur due to the heating action of the heating wire 10 and the operation of the engine, the battery 20 is generated. Regardless of the amount of charge of the battery 20 to be charged, the ignition is switched to the “off” state and the standby state is maintained.

이에따라 엔진의 주변온도, 즉 실린더 블록(12)의 냉각수로(13)에 충진되어 있는 냉각수의 온도가 빙점이하로 떨어져도 냉각수가 결빙되어 시동이 걸리지 않거나 혹은 엔진이 파손되는 것을 막을 수 있다.Accordingly, even if the ambient temperature of the engine, that is, the temperature of the coolant filled in the coolant passage 13 of the cylinder block 12 falls below the freezing point, the coolant may freeze to prevent starting or damage to the engine.

이상에서와 같이 본 발명은 벤딩소자에 의해 냉각수의 온도, 즉 냉각수의 결빙상태를 확인하고, 냉각수 결빙시 실린더 블록의 외벽에 설치된 열선을 동작시키거나 혹은 시동을 “온”상태로 절환함으로써, 냉각수 결빙시 온도가 올라가 엔진의 주변온도, 즉 실린더 블록의 냉각수로에 충진되어 있는 냉각수의 온도가 빙점이하로 떨어져도 냉각수가 결빙되어 시동이 걸리지 않거나 혹은 엔진이 파손되는 것을 사전에 방지할 수 있는 것이다.As described above, the present invention checks the temperature of the coolant by the bending element, that is, the freezing state of the coolant, and operates the heating wire installed on the outer wall of the cylinder block during the freezing of the coolant, or switches the starting state to the "on" state, thereby cooling the coolant. When the temperature rises and the temperature of the engine rises, that is, the temperature of the coolant filled in the coolant of the cylinder block falls below the freezing point, the coolant may freeze to prevent starting or damage to the engine.

Claims (2)

벤딩소자(40)를 통한 인가전압에 의해 냉각수의 결빙상태를 확인하는 단계와; 결빙시 소정시간 동안 경고시간을 출력하는 단계와; 소정시간 경과후 열선(10)에 전원을 공급하여 냉각수를 가열하는 단계와; 결빙상태가 지속되면 기어가 중립상태에 있을때에만 엔진 시동을 “온”한후 배터리(10)의 충전량을 감지하는 단계와; 배터리(10)가 완전 충전시 엔진 시동 “오프” 상태를 절환하는 단계를 포함하여 구성된 것을 특징으로 하는 엔진의 동파방지를 위한 열 공급방법.Confirming a freezing state of the cooling water by an applied voltage through the bending element 40; Outputting a warning time for a predetermined time when freezing; Heating the cooling water by supplying power to the heating wire 10 after a predetermined time elapses; Detecting an amount of charge of the battery 10 after turning on the engine only when the gear is in a neutral state if the freezing state continues; A method of supplying heat for preventing freezing of an engine, comprising the step of switching the engine starting "off" state when the battery (10) is fully charged. 실린더 블록(12) 외벽에 부착되어 냉각수의 결빙상태를 확인하는 벤딩소자(40)와; 벤딩소자(40)의 전압강하에 의해 냉각수의 결빙상태를 감지하고, 결빙시 경고부(50)와 열선(10)의 동작을 제어하는 엔진 전자제어장치(30)와; 이 엔진 전자제어장치(30)의 제어하에 열선(10)에 공급되는 배터리(20)의 전원을 단속하는 릴레이스위치(SW); 결빙시 경고신호를 출력하는 경고부(50); 실린더 블록(12)의 외벽에 부착되어 있으며 결빙시 배터리(20)의 전원으로 동작하여 냉각수를 가열하는 열선(10)으로 구성되어짐을 특징으로 하는 엔진의 동파방지를 위한 열 공급장치.A bending element (40) attached to the outer wall of the cylinder block (12) to check the freezing state of the cooling water; An engine electronic controller 30 which detects a freezing state of the coolant by the voltage drop of the bending element 40 and controls the operation of the warning unit 50 and the heating wire 10 during the freezing; A relay switch (SW) for controlling the power of the battery 20 supplied to the heating wire 10 under the control of the engine electronic controller 30; A warning unit 50 which outputs a warning signal when freezing; It is attached to the outer wall of the cylinder block 12, the heat supply device for preventing the freezing of the engine, characterized in that it consists of a heating wire (10) for operating the power of the battery (20) when heating the cooling water.
KR1019960066770A 1996-12-17 1996-12-17 Apparatus and method for providing prohibition of icy frature for engine KR100263331B1 (en)

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KR100665647B1 (en) * 2005-04-26 2007-01-09 대림산업 주식회사 Apparatus and Method for Manufacturing Sewage Pipe

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KR100410677B1 (en) * 2000-12-27 2003-12-18 현대자동차주식회사 Warning apparatus to freeze a cooling water

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JPS62179329U (en) * 1986-04-30 1987-11-14

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Publication number Priority date Publication date Assignee Title
JPS62179329U (en) * 1986-04-30 1987-11-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100665647B1 (en) * 2005-04-26 2007-01-09 대림산업 주식회사 Apparatus and Method for Manufacturing Sewage Pipe

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