201213170 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種車輛怠迷自動熄火（Idle Stop)控制 方法及裝置，尤指一種在需即時啟動怠速媳火功能時亦一 併啟動煞車警示燈以提高安全防護效果之怠速熄火控制方 法及裝置。 【先前技術】 隨著電子技術不斷地發展與新款車種在市場推出，車 輛本身所附加的功能隨之增加，為使用者帶來更人性化及 更方便的操控介面。近來年由於環保意識逐漸升溫，車輛 相關工業在研發新技術時亦朝向此目標發展，例如怠速熄 火（丨die Stop)的功能便是希望在某些預設的情況下，經由斷 油或斷電的方式自動控制引擎熄火，一方面降低能源消 耗，另一方面可減少廢氣排放以降低空氣汙染、減緩暖化 現象。 有關控制引擎自動熄火之技術已見於相關專利文獻， 例如本國發明公告第126888]號專利案「以溫度控制汽車 熄火之裝置」，其訴求重點是當引擎仍處於高熱狀態而駕 駛人部切斷鎖匙接點時，能自動接續電瓶供應予汽車電子 控制單7L之電流’使引擎在怠速狀態下繼續帶動冷卻系統 循％，直到引擎溫度降低至正常範圍内，再令引擎完全熄 火’故此案並非是於怠速情況下控制引擎自動熄火。 再者’於本國新型公告第M31 8291號專利案「汽車遠 端°乡斷與控制系統」，係利用無線綱路信號傳輸，允許一 201213170 遠端的祠服器發出一 TCP/丨p協定之控制指令，無 安裝於車輔之控制模組對汽車進行資料摘取與控制一車 微控制器，雖然其申請專利範圍中提到可控制引擎起 熄火’但該專利並未詳細揭露於何種條件下需控制引擎起 動或媳火’僅能根據其先前技術一段推測以遠端無線 控制控制引擎熄火是為了要因應車輛遭竊，車主可警Μ 迫車輛無法行敬。此專利與息速媳火之設定 = 關聯。 疋氅無 本國新型公告Μ358333號專利案「機車停車熄火 益」係於機車停料’開始進行聽計時，#舰結束後， 即切斷機車電路的電源，使機車完全熄火。 傳統怠速熄火之達成方式大多是利用一獨立的控制器 搭配各種不同的感測器而完成，該控制器接收各感測号所 ^供的各種資訊後’整合判斷是否可送出一控制指令，以 命令引擎熄火在此息速熄火的狀態下，車輛上所有的警示 ，係完全熄滅’僅有駕駛人在啟動煞車時（例如持壓㈣機 車的煞車手把），才會點亮煞車燈。 要求駕駛人在每次怠速熄火時均以手動方式啟用敦車 功能可說是相當不便，且難以普遍要求每位駕敎人皆確實 作至到；但當警示燈完全熄減時，駕驶人可說是處在一種 相對較為危險且缺之保護的情況’例如駕驶人在夜間行車 且面臨怠速熄火時’由於本車的各種警示燈完全媳滅，後 方來車無法清楚辨識其前方狀況，位在前方的車輛便極易 受到來自後方車輛的追撞’輕則對車體造成毀損，重則對 個人生命安全帶來不可彌補的傷害。 201213170 【發明内容】 有鐘於現有車輛在怠速媳火的情況下缺乏必要警示效 果，而容易遭受後方來車意外撞擊，本發明之主要目的係 提供一種具煞車燈警示功能的車輛怠速媳火控制裝置，在 判斷符合怠速熄火條件時，即自動點亮車輛之煞車燈以提 供主動式的警示效果，保障駕駛人之行車安全。 為達成前述目的，本發明具煞車燈警示功能的車輛怠 速熄火控制裝置係包含有： “ 一電子控制單元，係提供車輛狀態資訊，該車輛狀態 =貝Λ包s有油門開度（TPS)、引擎轉速（「口⑴）、電瓶電壓及 引擎溫度； 一忍速熄火控制器，係内建有怠速熄火判斷條件並連 接該電子控制單元以接收車輛狀態資訊，該怠速熄火控制 7將該些車輛狀態資訊與怠速熄火判斷條件相比較以決定 是否輸出一怠速熄火指令以控制車輛之燃油噴嘴停止喷 油，该忍速熄火控制器内部係具有一煞車燈驅動電路； 一煞車燈，係連接該怠速熄火控制器之煞車燈驅動電 路，於怠速熄火控制器發出該怠速熄火指令的同時，係被 驅動點亮； 一電瓶’係提供直流電壓至怠速熄火控制器、電子控制 早元及燃油喷嘴。 利用前述裝置，當怠速熄火控制器根據接收到的各種車 輛狀態資訊判斷要啟動怠速熄火功能時，該怠速熄火控制器 係輪出一怠速熄火指令而中斷燃油噴嘴的供電，使引擎媳 201213170 火，同時將電瓶所輸出之直流電壓供應至煞車燈，在不須人 為操作的情況下’本發明係同步點亮該煞車燈，自動產生警 示效果，達到警示周圍車輛避免發生意外追撞。 本發明之另一目的係提供一種具煞車燈警示功能的車 輛怠速熄火控制方法，該方法包含有： 啟用怠速媳火功能，係致能車輛之怠速熄火功能； 讀取並整合判斷車輛狀態資訊，係利用一怠速熄火控 制器接收車輛狀態資訊，並根據所蒐集的車輛狀態資訊與 _ 預設之怠速媳火判斷條件相比較，判斷是否需執行怠速熄 火；若是’則執行下一步驟’若否，則重複此讀取並整合 判斷車輛狀態資訊之步驟； 輸出一怠速熄、火指令，該怠速熄火控制器判斷符合怠 速媳火條件時’係輸出一怠速熄火指令，令引擎熄火並同 時驅動點亮車輛的煞車燈； 持續點亮該煞車燈一段時間，該怠速熄火控制器係控制 該煞車燈維持點亮一段預設時間，在預設時間到達時則控制 • 煞車燈熄滅。 【實施方式】 請參考圖1所示，為一怠速熄火控制器1 〇〇與車輛内 部的電瓶200、主開關300、電子控制單元400 (ECU)、燃 油喷嘴500及煞車燈6〇〇之間的電路連接方塊圖。於以下 敘述中’將以應用於機車為實施例加以詳細說明，惟本發 明可應用在各種需具備怠速熄火（Idol st〇p)功能之車輛，並 不偈限於機車領域。 電瓶200係透過主開關3〇〇而電連接怠速熄火控制器 ί Si 6 201213170 1 〇〇、電子控制單元400及燃油喷嘴500，當主開關300由 駕驶人開啟導通後，自電瓶200輸出一直流電壓至怠速炮 火控制器1 00、電子控制單元400及燃油喷嘴500。 以具有噴射引擎之機車為例，機車之電子控制單元4〇〇 已連接車輛本身的各種感測器，故可提供多種車輛狀態資 訊，例如油門開度（TPS)、引擎轉速（rpm)、電瓶電壓、引 擎溫度等’而本發明之怠速熄火控制器1 00係與電子控制 單元400整合在車體之控制系統，接收電子控制單元4〇〇 所提供的多種車輛狀態資訊，並根據該些車輛狀態資訊综 合判斷是否需啟動怠速熄火功能。當判斷必須啟動怠速熄 火功能時，由怠速熄火控制器1〇〇輸出一怠速熄火指令控 制該燃油噴嘴500，令燃油喷嘴500停止噴油。 該煞車燈600連接於該怠速熄火控制器1 〇〇的其中一 控制端 ¥啟動忍速媳火功能時，怠速媳火控制器1 〇 〇同 時輸出k號以驅動該煞車燈600，啟動該煞車燈600而提 供警示。 清參考圖2所示，該怠速熄火控制器100内部設有一 …、車燈驅動電路’該煞車燈驅動電路包含有： 一繼電器110,具有一激磁線圈ln、一第—輸出接點 112' 楚 第一輸出接點1 1 3及一切換接點114，該激磁線圈 111的一端係接收一直流電壓，該直接電壓可由電瓶2〇〇 所提供；該第—輸出接點112連接燃油喷嘴5〇〇 ;第二輸 出接點1 1 3連接至煞車燈600 ;該切換接點114的一端接 收°亥直流電壓’另一端則根據激磁線圈111的激磁與否而 切換至與第一輸出接點112或第二輸出接點113; 201213170 一二極體120’係反相連接於激磁線圈hi的兩端， 該二極體1 20之負端係連接該直流電壓； 一開關元件1 30 ’係連接於激磁線圈1彳彳之另端與接 地之間，該開關元件1 30可由一電晶體構成，其集極連接 激磁線圈111’射極接地，基極作為一控制端以接收一驅動 電壓； 一分壓電路140 ’係連接於該開關元件1 3〇之控制端， 可由兩電阻器構成，將來自一微處理器15〇的電壓信號（如 5V)分壓為符合開關元件]3〇所需的驅動電壓（如2 5v); 該微處理器1 50即怠速熄火控制器1 〇〇内部的資料運 算單元，内建有疋否應啟動息速煌、火的多種判斷條件，例 如油門開度（TPS)、引擎轉速（rpm)、電瓶電壓、引擎溫度 等，其紅合分析各種車輛狀態資訊後判斷應否啟動怠速熄 火功能。 針對前述的怠速熄火判斷條件在此提供一組設定參數 為例=明’但並不限制於㈣使用本組參數。舉例而言， 可訂定油門開度是否低於—下限值、引擎轉速是否低於一 :限值、引擎溫度是否高於一上限值、電瓶電壓是否超過 上限值以及輪速是否低於一設定頻率，當各項條件均是 成：且維持一短暫時間《，便認定車輛目前正處於非移動 的息逮狀態，故可啟動怠逮熄火。 :車輛正*運行而不須啟動怠速媳火功能時，該微處 裔50未發出電壓信號，因此開關元件處於截止未 通的狀態，故無電流可流經繼電器11〇的激磁線圈川， ^供電郎點114係維持與第—輸出接點"2電性接觸， 201213170 500，維持 使電瓶200輸出的直流電壓能供應至燃油喷嘴 車輛的正常行駛。201213170 VI. Description of the Invention: [Technical Field] The present invention relates to a method and a device for controlling an Idle Stop of a vehicle, and more particularly to a brake warning when a simmering bonfire function is required to be activated immediately. The idle speed control method and device for improving the safety protection effect of the lamp. [Prior Art] With the continuous development of electronic technology and the introduction of new models in the market, the added functions of the vehicles themselves have increased, providing users with a more user-friendly and more convenient control interface. In recent years, as environmental awareness has gradually warmed up, vehicle-related industries have also developed towards this goal in the development of new technologies. For example, the function of 丨die Stop is to hope to pass oil cut or power off under certain preset conditions. The way to automatically control the engine to extinguish, on the one hand to reduce energy consumption, on the other hand to reduce emissions to reduce air pollution and slow down the warming phenomenon. The technology for automatically extinguishing the control engine has been found in related patent documents, such as the domestic invention publication No. 126888, the "device for temperature-controlled automobile stalling", the main point of which is that when the engine is still in a high heat state, the driver cuts off the key. At the contact point, the battery can be automatically connected to the current of the car electronic control unit 7L 'to make the engine continue to drive the cooling system to continue in the idle state until the engine temperature drops to the normal range, and then the engine is completely extinguished', so the case is not The control engine automatically turns off at idle speed. In addition, in the domestic new type announcement No. M31 8291, "Automotive Remote ° Homesickness and Control System", which uses wireless router signal transmission, allows a remote server of 201213170 to issue a TCP/丨p agreement. The control command, without the control module installed in the vehicle, carries out data extraction and control of the vehicle. Although the patent application scope mentions that the control engine can be turned off, the patent is not disclosed in detail. Under the conditions, it is necessary to control the engine start or bonfire. 'Only according to its prior art, it can be speculated that the remote wireless control engine is turned off in order to prevent the vehicle from being stolen, and the owner can be wary of the vehicle. This patent is associated with the setting of the speed of interest.疋氅 No National New Bulletin No. 358333 Patent "Motorcycle Parking and Extinguishing Benefits" is started when the locomotive stops. When the ship is over, the power of the locomotive circuit is cut off, so that the locomotive is completely turned off. Most of the traditional methods of achieving idle speed are achieved by using a separate controller with various sensors. After receiving various information provided by each sensing number, the controller integrates the judgment to determine whether a control command can be sent. The command engine is turned off. In this state where the speed is turned off, all the warnings on the vehicle are completely extinguished. 'Only when the driver starts the brake (for example, the brake handlebar of the holding (4) locomotive) will illuminate the brake light. It is quite inconvenient to require the driver to manually activate the vehicle function every time the idling is turned off. It is difficult to generally require every driver to do it; but when the warning light is completely extinguished, the driver can It is said that it is in a relatively dangerous and lack of protection. For example, when the driver is driving at night and facing an idling flame, the various warning lights of the vehicle are completely annihilated, and the rear car cannot clearly identify the situation ahead. The vehicle in front is extremely vulnerable to the collision from the rear vehicle. It will damage the car body and cause irreparable damage to personal life safety. 201213170 [Summary of the Invention] In the case that the existing vehicle lacks the necessary warning effect in the case of idle bonfire, and is susceptible to accidental impact from the rear of the vehicle, the main object of the present invention is to provide an idle bonfire control for a vehicle with a warning function of the vehicle light. The device automatically lights up the vehicle's brake light when it is judged to meet the idle speed limit condition to provide an active warning effect to ensure the driver's driving safety. In order to achieve the foregoing object, the vehicle idle speed control device with the vehicle light warning function includes: “An electronic control unit provides vehicle status information, and the vehicle status=beauty package s has throttle opening degree (TPS), Engine speed ("port (1)), battery voltage and engine temperature; a forcible speed extinguishing controller with built-in idle-stop determination conditions and connected to the electronic control unit to receive vehicle status information, the idle-speed control 7 The state information is compared with the idle stop determination condition to determine whether to output an idle stop command to control the fuel nozzle of the vehicle to stop the fuel injection. The forcible flameout controller has a driving light driving circuit inside; a vehicle light is connected to the idle speed The brake light driving circuit of the flameout controller is driven to light while the idle speed extinguishing controller issues the idle speed extinguishing command; a battery 'provides a DC voltage to the idle speed extinguishing controller, the electronic control early element and the fuel nozzle. The foregoing device, when the idle stop controller is judged according to the received various vehicle status information When the idle stop function is activated, the idle stop controller rotates an idle stop command to interrupt the power supply of the fuel nozzle, so that the engine 媳201213170 fires, and simultaneously supplies the DC voltage output from the battery to the brake light, without human operation. In the case of the present invention, the brake light is automatically illuminated to automatically generate a warning effect, and the surrounding vehicle is alerted to avoid accidental collision. Another object of the present invention is to provide a vehicle idle speed control method with a vehicle light warning function, The method includes: enabling the idle speed bonfire function, enabling the idling stop function of the vehicle; reading and integrating the judgment of the vehicle status information, using an idling stop controller to receive vehicle status information, and according to the collected vehicle status information and _ The preset idle speed bonfire judgment condition is compared to determine whether it is necessary to perform idle speed flameout; if it is 'then the next step', if not, repeat the reading and integrate the steps of determining the vehicle state information; output an idle speed, fire command When the idle speed extinguishing controller judges that it meets the idle bonfire condition, the system outputs a 怠a flameout command that causes the engine to be turned off and simultaneously drives a brake light that illuminates the vehicle; continuously illuminating the brake light for a period of time, the idle stop controller controls the brake light to remain lit for a preset time, when the preset time arrives Control • The vehicle light is off. [Embodiment] Please refer to Figure 1 for an idling stop controller 1 〇〇 and the battery 200 inside the vehicle, the main switch 300, the electronic control unit 400 (ECU), the fuel nozzle 500 and the brakes. The circuit connection block diagram between the lamps 6〇〇. In the following description, the application will be described in detail for the embodiment of the locomotive, but the invention can be applied to various vehicles requiring the Idol st〇p function. It is not limited to the locomotive field. The battery 200 is electrically connected to the idling stop controller through the main switch 3〇〇 ί Si 6 201213170 1 〇〇, the electronic control unit 400 and the fuel nozzle 500, when the main switch 300 is turned on by the driver The battery 200 outputs a constant current voltage to the idle gun fire controller 100, the electronic control unit 400, and the fuel nozzle 500. Taking a locomotive with an injection engine as an example, the electronic control unit 4 of the locomotive has been connected to various sensors of the vehicle itself, so that various vehicle status information such as throttle opening (TPS), engine speed (rpm), and battery can be provided. Voltage, engine temperature, etc. and the idle stop controller 100 of the present invention is integrated with the electronic control unit 400 in the control system of the vehicle body, and receives various vehicle status information provided by the electronic control unit 4, and according to the vehicles The status information comprehensively determines whether the idle stop function needs to be activated. When it is judged that the idling stop function must be started, the idling stop controller 1 outputs an idling stop command to control the fuel nozzle 500, so that the fuel nozzle 500 stops the fuel injection. When the brake light 600 is connected to one of the control terminals of the idle stop controller 1 and starts the forcible bonfire function, the idle bonfire controller 1 〇〇 simultaneously outputs the k number to drive the brake light 600 to start the brake The light 600 provides an alert. Referring to FIG. 2, the idle speed extinguishing controller 100 is internally provided with a ... lamp driving circuit. The braking lamp driving circuit comprises: a relay 110 having an exciting coil ln and a first output contact 112'. The first output contact 1 1 3 and a switching contact 114, one end of the excitation coil 111 receives a DC voltage, the direct voltage can be provided by the battery 2〇〇; the first output contact 112 is connected to the fuel nozzle 5〇 The second output contact 1 1 3 is connected to the brake light 600; one end of the switch contact 114 receives the DC voltage and the other end is switched to the first output contact 112 according to the excitation of the excitation coil 111. Or a second output contact 113; 201213170 a diode 120' is connected in anti-phase to both ends of the excitation coil hi, the negative end of the diode 1 20 is connected to the DC voltage; a switching element 1 30 ' is connected Between the other end of the excitation coil 1 与 and the ground, the switching element 130 can be formed by a transistor, the collector connection excitation coil 111 ′ is emitter grounded, and the base serves as a control terminal to receive a driving voltage; Voltage dividing circuit 140 'connected The control terminal of the switching element 1 3〇 can be composed of two resistors, and the voltage signal (such as 5V) from a microprocessor 15〇 is divided into the driving voltage required for the switching element 3〇 (such as 2 5v). The microprocessor 150 is an internal data calculation unit of the idle stop controller 1 , and has various built-in determination conditions such as throttle opening (TPS) and engine speed ( Rpm), battery voltage, engine temperature, etc., after red analysis of various vehicle status information, determine whether the idle stop function should be activated. For the aforementioned idle stop determination condition, a set of setting parameters is provided here as an example = but not limited to (4) using the set of parameters. For example, whether the throttle opening is lower than the lower limit, whether the engine speed is lower than one: the limit, whether the engine temperature is higher than an upper limit, whether the battery voltage exceeds the upper limit, and whether the wheel speed is low can be determined. At a set frequency, when all the conditions are: and maintained for a short time, it is determined that the vehicle is currently in a non-moving state of catch, so it can be started and caught. : When the vehicle is running* without starting the idle speed bonfire function, the micro-age 50 does not emit a voltage signal, so the switching element is in the off state, so no current can flow through the excitation coil of the relay 11〇, ^ The power supply point 114 maintains the electrical contact with the first output contact "2, 201213170 500, maintaining the DC voltage output from the battery 200 to be supplied to the normal operation of the fuel nozzle vehicle.
當微處理器15〇根據接收到的各種車輔狀態資訊判斷 要啟動怠速熄火功能時，微處理器15G送出電評號八 壓電路140將此電壓信號分壓成一驅動電壓後，使開關二 件130接收該驅動電壓而轉為導通，隨著開關元件13〇的 導通，繼電器H0的激磁線圈川上係有電流通過而產生 磁力，該供電節點114受磁力影響而切換至與第二輸出接 點113電性接點，將電瓶200的電力改輸出至煞車燈6〇〇, 點亮煞車燈600而產生自動警示效果。該煞車燈6〇〇點亮 的維持時間可預設在微處理器150内部，例如持續3分鐘， 當預設時間一到，微處理器1 50即停止輪出電壓信號，關 閉該開關元件1 30而使煞車燈600熄滅。 在開關元件130由導通轉為截止的瞬間，繼電器11〇 上的激磁線圈111因為是屬於電感性元件，仍會有蓄積的 部分能量’此時二極體1 20便提供一能量消耗迴路，讓激 磁線圈111上的能量能由該二極體1 2 0所消耗β 請參考圖3所示，為本發明車輛怠速熄火控制方法之 流程圖，包含有下列步驟： 啟用怠速媳火功能（301 )，即致能（enable)車輛上的怠 速熄火功能’其致能方式因不同車款之設計方式而略有差 異，例如車輛上可設有一怠速熄火功能開關，由駕駛人決 定是否在行車時啟用該怠速熄火功能； 讀取並整合判斷車輛狀態資訊（302)，係以該怠速熄火 控制器1 00接數各種車輛狀態資訊，例如油門開度（TPS)、 201213170 引擎轉速（rpm)、電瓶電壓、引擎溫度等，根據所荒集的資 料判斷是否需執行怠速熄火；若是，則執行下一步驟，若 否，則重複進行此讀取並整合判斷車輛狀態資訊（302)之步 驟； 輸出一怠速熄火指令（3 0 3 )，當怠速媳火控制器1 〇 〇判 斷已符合怠速熄火的各種條件時，即輸出一怠速炮火指 令’控制燃油噴嘴停止喷油’藉此可控制引擎自動熄火， 在此同時，同時驅動點亮車輛的煞車燈； • 持續點亮該煞車燈一段時間（304)，怠速熄火控制器 1 0 0係控制s亥煞車燈6 0 0維持點亮一段預設時間，在預設 時間到達時則控制煞車燈600熄滅。 综上所述，本發明之相較於傳統的作法，不僅能提供車 輛思速熄火，以達到節省汽油消耗的功能，更能在怠速熄火 的狀態下自動點冗煞車燈，使用者不需刻意控制煞車燈而產 生更加方便的警示效果，讓其它車輛的駕駛人能明顯注意到 _ 其前方車輛已暫停於道路上，降低發生意外追撞的機率。 【圖式簡單說明】 圖1 :本發明應用於車輛内部之整體電路方塊圖。 圖2:本發明之煞車燈驅動電路圖。 圖3 :本發明之方法流程圖。 【主要元件符號說明】 1 〇〇 ,¾速媳火控制器 1 1 0繼電器 10 201213170 1 1 1激磁線圈 1 1 3第二輸出接點 1 20二極體 140分壓電路 200電瓶 400電子控制單元 600煞車燈 1 1 2第一輸出接點 1 1 4切換接點 1 30開關元件 150微處理器 300主開關 500燃油噴嘴When the microprocessor 15 determines to start the idle-stop function according to the received various vehicle auxiliary state information, the microprocessor 15G sends the electrical evaluation number eight-voltage circuit 140 to divide the voltage signal into a driving voltage, so that the switch 2 The device 130 receives the driving voltage and turns on. As the switching element 13 turns on, the exciting coil of the relay H0 passes through a current to generate a magnetic force, and the feeding node 114 is switched to the second output contact by the magnetic force. 113 electrical contacts, the power of the battery 200 is changed to the brake light 6 〇〇, lighting the brake light 600 to produce an automatic warning effect. The maintenance time of the brake light 6 〇〇 can be preset inside the microprocessor 150, for example, for 3 minutes. When the preset time is up, the microprocessor 150 stops the voltage signal and turns off the switching element 1 30, the brake light 600 is turned off. At the moment when the switching element 130 is turned from on to off, the exciting coil 111 on the relay 11 is still an inductive component, and there is still a part of the energy accumulated. At this time, the diode 1 20 provides an energy consuming circuit. The energy on the excitation coil 111 can be consumed by the diode 1 2 0. Please refer to FIG. 3 , which is a flowchart of the vehicle idle reduction control method of the present invention, including the following steps: enabling the idle speed bonfire function (301 ) , that is, enabling the idling and extinguishing function on the vehicle. The way of enabling it is slightly different depending on the design of different models. For example, an idle stop function switch can be provided on the vehicle, and the driver can decide whether to enable it while driving. The idle speed extinguishing function; reading and integrating the judgment vehicle status information (302), using the idle speed extinguishing controller 100 to receive various vehicle status information, such as throttle opening (TPS), 201213170 engine speed (rpm), battery voltage , engine temperature, etc., based on the data collected, determine whether to perform idle-stopping; if yes, perform the next step, if not, repeat this reading and integrate The step of breaking the vehicle status information (302); outputting an idle stop command (3 0 3 ), when the idle idle controller 1 determines that the various conditions of the idle stop are met, an idle gun command is output to control the fuel nozzle Stop the fuel injection' to control the engine to automatically turn off, at the same time, drive the vehicle's brake light at the same time; • Continue to light the brake light for a period of time (304), idle speed control controller 1 0 0 control s The lamp 600 is kept lit for a preset time, and when the preset time arrives, the brake light 600 is turned off. In summary, the present invention can not only provide the vehicle with the speed limit to achieve the function of saving gasoline consumption, but also automatically fulfil the redundant lights in the state of idling and extinction, and the user does not need to deliberately Controlling the brake lights produces a more convenient warning effect, allowing the driver of other vehicles to notice clearly that the vehicle in front of them has been suspended on the road, reducing the chance of accidental collision. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram of an overall circuit of the present invention applied to a vehicle interior. Fig. 2 is a circuit diagram showing the driving of the brake lamp of the present invention. Figure 3: Flow chart of the method of the present invention. [Main component symbol description] 1 〇〇, 3⁄4 speed bonfire controller 1 1 0 relay 10 201213170 1 1 1 excitation coil 1 1 3 second output contact 1 20 diode 140 voltage divider circuit 200 battery 400 electronic control Unit 600 Xenon lamp 1 1 2 First output contact 1 1 4 Switching contact 1 30 Switching element 150 Microprocessor 300 Main switch 500 Fuel nozzle
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