M442303 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種引擎怠速自動熄火裝置，尤指—種 適用於打擋車之機車引擎怠速自動熄火裝置。 【先前技術】 汽機車所排放的廢氣是造成空氣污染及溫室效應的主 要因素之一，而機車在怠速中（如十字路口紅燈暫停）所排 放的廢氣濃度是正常行駛中的好幾倍，因此若要有效防止 機車在怠速中排放廢氣，最好的方法就是將引擎熄火。 此外，礙於環保法規日益嚴苛要求下，各國環保相關 單位逐漸要求汽、機車於等待紅綠燈、塞車、及路邊暫停 等情況下，亦即息速超過一定時間（如.2分鐘）時，必須強制 引擎熄火。因此如何控制引擎於怠速下自動熄火’俾抑制 α、機車之氣體排放量、及減少汽油燃料之消耗量，實為 各車輛生產廠商所急欲解決之問題。 一般機車啟動與熄火方式大多利用鑰匙轉動機車鎖 頭，請參閱圖1係習知引擎啟動與熄火系統之電路示意圖， 一般而言，要啟動引擎70時，騎乘者需先以右手鑰匙轉動 機車鎖頭，即先啟動電源開關74以連通電池73，再左手啟 動煞車開關75,此時煞車燈76會亮，即需先導通煞車迴路， 且檔位偵測器81所偵測到檔位需為空檔，方能啟動引擎 70，以避免發生爆衝，再右手按壓啟動開關77，透過啟動 控制開關79 ,開啟啟動馬達78後再經由電源控制開關71與 3 M442303 點火器72才能啟動引學7〇,引擎川運轉的相關訊息及檀位 偵測器81所偵測的樓位訊息皆會顯示於儀表指示燈叩上。 此外，當引擎70於急速令要媳火時，騎乘者需反轉錄匙以 切斷電源。因此，對機車騎乘者而言，在引擎媳火與啟動 過程中’雙手必須在機車把手與鎖頭間來回移動，操作上 十分繁瑣不便，並非十分理想。 有些近幾年才上市販賣之機車，則利用嘴射引擎的電 子控制單元（Electronic Contr〇1 Unh : ECU)根據引擎之轉 速、車速及握把感知器所债測到機車之把手是否未被握持 等訊息來判斷引擎是否應熄火。參閱圖2係另一習知引擎怠 速熄火之系統架構圖所示，其系統架構主要包括有··一握 把感知器91、一車速感知器92、一計時器们、一檔位偵測 器96及一控制單元94。握把感知器91係用以偵測機車之把 手是否被握持，車速感知器92係用以量測機車之車速，計 時器93係用以量測把手未被握持之持續時間，檔位偵測器 96係用以偵測機車之檔位，控制單元94則電連接於握把感 知器91 '車速感知器92、計時器93及檔位偵測器96。 當機車之引擎95處於發動狀態，握把感知器9丨偵測到 把手未被握持、計時器93量測到把手未被握持之持續時間 到達一預定值及車速感知器9 2量測到機車之車速為零，且 檔位偵測器96所偵測到機車之檔位需為空檔時，亦即機車 係處於怠速且位於空擋時，控制單元94方輸出一訊號以控 制機車之引擎95熄火。此種方式雖可判斷並幫助騎乘者完 成自動熄火動作，但需裝設多個感知器來量測多種不同且 又必需判讀之訊息，使得零組件數量增加，整體機車之成 本上升，亦非十分理想，尚有改善之空間。 創作人緣因於此，本於積極創作之精神，亟思一種可 以解決上述問題之引擎怠速自動熄火裝置，幾經研究實驗 终至完成本創作。 t新型内容】 本創作之主要目的係在提供一種引擎怠速自動熄火 裝置俾能利用機車及引擎現有感測元件，無需增添如握 把感知器或其他額外的感測元件，即可自動怠速熄火，不 僅可節省成本，且也可避免操作上之繁瑣不便。 為達成上述目的，本創作之引擎怠速自動熄火裝置係 組設於一具有一引擎之一打檔式之機車上，包括有：一車 速感知益、一引擎轉速感知器、一計時器、一檔位偵測器、 一尽速熄火切換器、一怠速熄火控制開關及一怠速熄火控 制單元。 車速感知器係用以量測機車之車速，引擎轉速感知器 係用以量測擎之轉速，計時器用以量測引擎轉速感知器所 量測引擎之轉速小於一預定轉速時之持續時間，檔位偵測 器係用以偵測機車之檔位，怠速熄火切換器用以選擇控制 機車之運轉模式為怠速自動熄火或不怠速自動熄火狀態， 怠速熄火控制開關係用以選擇控制一與引擎電連接之電源 控制開關，而怠速熄火控制單元則電連接於車速感知器、 引擎轉速感知器、計時器、檔位偵測器、怠速熄火切換器 與怠速熄火控制開關。 M442303 其中，當該引擎處於發動狀態且怠速熄火切換器位於 怠速自動熄火之運轉模式，車速感知器量測車速為零且計 時器量測引擎之轉速於預定轉連之持續時間超過一預定 時間，且檔位偵測器偵測機車之檔位為空檔時，怠速熄火 控制單元則判斷此時機車係處於空檔及怠速中，會輸出一 訊號至忍速熄火控制開關，進而控制電源控制開關以控制 引擎媳火。 上述機車怠速之預定時間可設定為1分鐘、2分鐘、3 分鐘或其他時間，可視當地環保規定而設定，且該預定時 間可儲存於怠速熄火控制單元内之.記憶體或其他等效儲存 媒體中' 上述引擎之預定轉速可設定為2〇〇〇轉/分（rpm)、18〇〇 轉/分、1600轉/分或其他轉數，其可視引擎之性能而設定， 且該預^轉速可储存於怠速媳火控制單元内之記憶體或其 他等效儲存媒體_。 上述怠速熄火切換器可為一按壓開關或其他等姝構 件’俾可方便機車騎乘者操控選擇機車之運轉模式為急速 自動熄火或不怠速自動熄火。亦即，機車之騎乘者可自由 選擇要不要怠速自動熄火，僅需以手按壓開關操控即可變 換。 此外®引擎處於發動狀態且怠速媳火切換器位於不 怠速自動總火之運轉模式時’縱使車速感知器量測車速為 零且：時器量測引擎之轉速小於預定轉速之持續時間超過 預疋時間速媳火控制單元並不輸出任何控制引擎 M442303 熄火之訊號，亦即此時.，騎乘者係設定機車之運轉模式為 不怠速自動熄火。 ' 另外，當檔位偵測器所偵測之檔位非為空檔，縱使車 速感知器量測車速為零且計時器量測引擎之轉速小於預定 轉速之持續時間超過一預定時間時，怠速熄火控制單元並 不輸出任何控制引擎熄火之訊號，俾避免無法再啟動。 上述怠速熄火控制開關可為一常閉型繼電器（Relay) 或其他等效構件。 ® 上述怠速熄火切換器之運轉模式及檔位偵測器所偵測 之播位，皆可顯示於機車之儀表指示燈上，亦即機車之運 轉模式是怠速自動熄火或是不怠速自動熄火狀態，機車之 檔位是否為空檔，皆可顯示於儀表指示燈上，俾可讓騎乘 者目視快速清楚得知。 上述機車可包括有一啟動馬達，啟動馬達電連接一啟 動控制開關，怠速媳、火控制單元並與啟動控制開關電連 接’俾當機車處於怠速媳火中要再次啟動時，僅需按壓啟 • 動開關即可，無需如習知技術需再手拉啟動煞車開關，因 煞車迴路已經由怠速總火控制單元與啟動馬達之啟動控制 開關相互導通。 【實施方式】 請參閱圖3及圖4，其分別為本發明一較佳實施例之系 統架構圖及電路示意圖，本實施例之引擎怠速自動熄火系 統係組設於一具有一引擎10之一打檔式之機車上，包括 7 M442303 有：一車速感知器21' —引擎轉速感知器22、一計時器23、 一怠速熄火切換器24、一怠速熄火控制開關26、一檔位偵 測器27、一儀表指示燈25、一與引擎1〇及怠速總火控制開 關26電連接之電源控制開關11以及一怠速媳火控制.單元 30 ° 其中’車速感知器21係用以量測機車之車速，引擎轉 速感知器22用以量測引擎1〇之轉速，計時器23用以量測引 擎轉速感知器22所量測之引擎1〇之轉速小於一預定轉速時 之持續時間，檔位偵測器27係用以偵測機車之檔位，怠速 炮火切換器24可提供騎乘者選擇控制機車之運轉模式為怠 速自動熄火或不怠速自動熄火狀態，而怠速熄火控制單元 30則電連接於車速感知器21、引擎轉速感知器22、計時器 23、怠速媳火切換器24、儀表指示燈25、怠速熄、火控制開 關26與檔位偵測器27。 如圖所示’當引擎10處於發動狀態及怠速熄火切換器 24位於怠速自動熄火之運轉模式，車速感知器21量測車速 為零且計時器23量測引擎1 〇之轉速小於預定轉速之持續時 間超過一預定時間，且檔位偵測器27偵測該機車之檔位為 空槽時，怠速熄火控制單元3〇則輸出一訊號至怠速熄火控 制開關26 ’進而控制電源控制開關丨丨以切斷電源，控制引 擎10熄火。 此外’當引擎10處於發動狀態且怠速媳火切換器24位 於不怠速自動熄火之運轉模式，縱使車速感知器21量測車 速為零且計時器23量測引擎1〇之轉速小於預定轉速之持續 M442303 時間超過一預定時間時，怠速熄火控制單元3〇並不輸出任 何控制引擎10熄火之訊號，亦即此時，騎乘者係設定機車 之運轉模式為不怠速自動熄火。. 另外，當引擎10處於發動狀態及怠速熄火切換器24位 於忍速自動熄火之運轉模式，若檔位偵測器27所偵測之檔 位非為空檔，縱使車速感知器21量測車速為零且計時器23 量測引擎之轉速小於預定轉速之持續時間超過一預定時間 時，怠速熄火控制單元30並不輸出任何控制引擎丨〇媳火之 • 訊號，俾避免機車之檔位非為空檔而無法再啟動。 在本實施例中’預定時間係設定為1分鐘，引擎1〇之預 定轉速設定為2000轉/分（rpm)，怠速熄火切換器24為一按 壓開關，可方便機車騎乘者操控選擇機車之運轉模式為怠 速自動媳’火或不,¾速自動媳火。且怠速媳火切換器24之運 轉模式及檔位偵測器27所偵測之檔位等訊息，皆顯示於機 車之儀表指示燈25上，可讓騎乘者目視快速清楚得知運轉 模式，以便決定是否切換變更運轉模式。 馨 如圖4所示，啟動引擎1〇之步驟為：騎乘者先啟動電源 開關14以連通電池13，再手拉啟動煞車開關15，此時煞車 燈16會亮’即需先導通煞車迴路方能啟動引擎1〇，以避免 發生爆衝，再按壓啟動開關17，透過啟動控制開關19，開 啟啟動馬達18後再經由電源控制開關π與點火器12才能啟 動引擎10。 此外，當機車處於怠速中，亦即引擎1〇處於發動狀態 及怠速熄火切換器24位於怠速自動熄火之運轉模式，車速 M442303 感知器21量測車速為零且計時器23量測到引擎10之轉逮小 於2000輅/分之持續時間超過1分鐘，且檔位偵測器27偵測 該機車之檔位為空檔時，怠速熄火控制單元30則輸出一訊 號給怠速熄火控制開關26，怠速熄火控制開關26接收到怠 速熄火控制單元30所輸出之訊號後，即可控制與引擎10電 連接之電源控制開關11，進而控制引擎10熄火，而不用如 前述習用技術需騎乘者用手轉動鑰匙切斷電源。在本實施 例中’怠速熄火控制開關26為一常閉型繼電器。 如圖4所示，在本實施例中，因怠速熄火控制單元3〇 與啟動馬達18之啟動控制開關19已電連接，故當機車處於 怠速熄火中要再次啟動時，僅需按壓啟動開關17即可，無 需如習知技術需再手拉煞車開關15，因煞車迴路已經由息 速熄火控制單元30與啟動控制開關19相互導通。 藉此’本實施例能利用機車及引擎現有感測元件，無 需如習用技術需增添如握把感知器或其他額外的感測元 件’即可自動怠速熄火，不僅可節省成本，且也可避免操 作上之繁瑣不便》 上述實施例僅係為了方便說明而舉例而已，本創作所 主張之權利範圍自應以申請專利範圍所述為準，而非僅限 於上述實施例。 【圖式簡單說明】 圖1係習知引擎啟動與熄火系統之電路示意圖。 圖2係另一習知引擎怠速熄火之系統架構圖。 M442303 圖3係本創作〆較佳實施例之系統架構圖。 圖4係本創作一較佳實施例之番 €路示意圖。 【主要元件符號說明】 10 引擎 12 點火器 14 電源開關 16 煞車燈 18 啟動馬達 21 車速感知器 23 計時器 25 儀表指示燈 27 檔位傾測器 70 引擎 72 點火器 74 電源開關 76 煞車燈 78 啟動馬達 80 儀表指示燈· 91 握把感知器 93 計時器 95 引擎 11 電源控制開關 13 電池 15 煞車開關 17 啟動開關 19 啟動控制開關 22 引擎轉速感知器 24 怠速熄火切換器 26 怠速熄火控制開關 3〇 息速熄火控制單元 71 電源控制開關 73 電池 75 煞車開關 77 啟動開關 79 啟動控制開關 81 檔位偵測器 92 車速感知器 94 控制卓元 96 檔位偵測器 11M442303 V. New description: [New technical field] This is a kind of engine idle speed automatic flameout device, especially for the locomotive engine idle speed automatic flameout device suitable for the vehicle. [Prior Art] The exhaust gas emitted by steam locomotives is one of the main factors causing air pollution and the greenhouse effect. The concentration of exhaust gas emitted by locomotives during idle speed (such as the red light at the crossroads) is several times that of normal driving. To effectively prevent the locomotive from emitting exhaust gas at idle speed, the best way is to turn off the engine. In addition, due to the increasingly stringent requirements of environmental protection regulations, environmental protection-related units in various countries have gradually requested that steam and locomotives wait for traffic lights, traffic jams, and roadside suspensions, that is, when the interest rate exceeds a certain period of time (such as .2 minutes). The engine must be forced to stall. Therefore, how to control the engine to automatically extinguish the flame at idle speed, 俾 suppress α, the gas emissions of the locomotive, and reduce the consumption of gasoline fuel is an urgent problem for vehicle manufacturers. Generally, the locomotive starting and extinguishing methods mostly use the key to turn the locomotive lock. Please refer to Figure 1 for a schematic diagram of the circuit of the engine starting and extinguishing system. Generally speaking, when starting the engine 70, the rider needs to first turn the locomotive with the right hand key. The lock head, that is, the power switch 74 is first activated to connect the battery 73, and then the brake switch 75 is activated by the left hand. At this time, the brake light 76 is turned on, that is, the brake circuit needs to be turned on first, and the gear position detector 81 needs to detect the gear position. In the neutral position, the engine 70 can be started to avoid the explosion, and then the start switch 77 is pressed by the right hand. After the start control switch 79 is turned on, the starter motor 78 is turned on, and then the power control switch 71 and the 3 M442303 igniter 72 can be started to start the study. 7〇, the relevant information of the engine running and the floor information detected by the position detector 81 will be displayed on the indicator light. In addition, when the engine 70 is in a hurry to bonfire, the rider needs an anti-transcription key to cut off the power. Therefore, for the locomotive rider, during the engine bonfire and start-up process, both hands must move back and forth between the handlebar and the lock of the locomotive, which is very cumbersome and inconvenient to operate, which is not ideal. Some locomotives that have been on the market in recent years have used the electronic control unit (Electronic Contr〇1 Unh: ECU) of the mouthpiece engine to determine whether the handle of the locomotive is not gripped according to the speed of the engine, the speed of the vehicle and the grip of the gripper. Wait for the message to determine if the engine should be turned off. Referring to FIG. 2, another system architecture diagram of an engine idle speed is shown. The system architecture mainly includes a grip sensor 91, a vehicle speed sensor 92, a timer, and a gear position detector. 96 and a control unit 94. The grip sensor 91 is used to detect whether the handle of the locomotive is gripped, the speed sensor 92 is used to measure the speed of the locomotive, and the timer 93 is used to measure the duration of the handle being held, the gear position The detector 96 is used to detect the gear position of the locomotive, and the control unit 94 is electrically connected to the grip sensor 91 'vehicle speed sensor 92, the timer 93 and the gear position detector 96. When the engine 95 of the locomotive is in the starting state, the gripper sensor 9 detects that the handle is not gripped, and the timer 93 measures that the duration of the handle is not held reaches a predetermined value and the vehicle speed sensor 9 2 measures When the speed of the locomotive is zero, and the gear position detector 96 detects that the gear position of the locomotive needs to be neutral, that is, when the locomotive system is idle and is in neutral, the control unit 94 outputs a signal to control the locomotive. The engine 95 is turned off. Although this method can judge and help the rider to complete the automatic flameout action, it needs to install multiple sensors to measure a variety of different and necessary interpretations, so that the number of components increases, and the cost of the overall locomotive increases. Very ideal, there is still room for improvement. Because of this, the author is based on the spirit of active creation, thinking about an engine automatic speed-extinguishing device that can solve the above problems, and finally completes the creation after several research experiments. t new content] The main purpose of this creation is to provide an engine idle speed automatic flameout device, which can utilize the existing sensing components of the locomotive and engine, and can automatically ignite the flame without adding a grip sensor or other additional sensing components. Not only can it save costs, but it can also avoid the cumbersome inconvenience of operation. In order to achieve the above objectives, the engine idle speed automatic flame-extinguishing device of the present invention is set on a locomotive having one type of engine, including: a vehicle speed sensing benefit, an engine speed sensor, a timer, and a gear. The position detector, a speed-extinguishing switch, an idle stop control switch and an idle stop control unit. The speed sensor is used to measure the speed of the locomotive, the engine speed sensor is used to measure the speed of the engine, and the timer is used to measure the duration of the engine speed measured by the engine speed sensor less than a predetermined speed. The position detector is used to detect the gear position of the locomotive. The idle speed switch is used to select and control the operation mode of the locomotive to be the automatic speed stop or the automatic stop state of the idle speed. The idle speed control relationship is used to select the control one to electrically connect with the engine. The power control switch, and the idle speed control unit is electrically connected to the vehicle speed sensor, the engine speed sensor, the timer, the gear position detector, the idle speed switch, and the idle speed control switch. M442303, wherein when the engine is in the starting state and the idle stop switch is in the idle automatic stop mode, the vehicle speed sensor measures the vehicle speed to be zero and the timer measurement engine rotates for more than a predetermined time in the predetermined connection. When the gear position detector detects that the gear position of the locomotive is neutral, the idle speed flameout control unit determines that the locomotive system is in neutral and idle speed, and outputs a signal to the forcible speed flameout control switch, thereby controlling the power control switch. Take control of the engine to bonfire. The predetermined time for the above locomotive idle speed can be set to 1 minute, 2 minutes, 3 minutes or other time, which can be set according to local environmental protection regulations, and the predetermined time can be stored in the idle speed control unit. Memory or other equivalent storage medium The predetermined speed of the above engine can be set to 2 rpm, 18 rpm, 1600 rpm or other revolutions, which can be set according to the performance of the engine, and the pre-speed Memory or other equivalent storage medium _ that can be stored in the idle bonfire control unit. The above-mentioned idling stop switch can be a push switch or other equal 俾 member 俾 俾 俾 机 机 机 骑 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 That is to say, the rider of the locomotive is free to choose whether or not to automatically turn off the ignition at an idle speed, and only need to press the switch to control the change. In addition, the engine is in the starting state and the idle speed switch is in the idle automatic automatic fire mode. Even if the speed sensor measures zero speed and the speed of the time measuring engine is less than the predetermined speed, the duration exceeds the preview. The time-speed bonfire control unit does not output any signal that the control engine M442303 is turned off, that is, at this time. The rider sets the locomotive's operation mode to automatically stop without idling. In addition, when the gear position detected by the gear position detector is not neutral, even if the vehicle speed sensor measures the vehicle speed to zero and the speed of the timer measurement engine is less than the predetermined speed for more than a predetermined time, the idle speed The flameout control unit does not output any signal that controls the engine to stall, so that it cannot be restarted. The above idle stop control switch can be a normally closed relay or other equivalent component. ® The operation mode of the above-mentioned idle stop switch and the broadcast position detected by the gear position detector can be displayed on the indicator light of the locomotive, that is, the operation mode of the locomotive is idle automatic stop or automatic ignition without idle. Whether the gear position of the locomotive is in the neutral position can be displayed on the indicator light of the instrument, so that the rider can see the visually quickly and clearly. The locomotive may include a starter motor, the starter motor is electrically connected to a start control switch, the idle speed 媳, the fire control unit is electrically connected to the start control switch, and when the locomotive is to be restarted in an idle bonfire, only the press is required to be activated. The switch can be used, and it is not necessary to manually start the brake switch as in the prior art, because the brake circuit has been electrically connected to each other by the idle speed total fire control unit and the start control switch of the starter motor. [Embodiment] Please refer to FIG. 3 and FIG. 4 , which are respectively a system architecture diagram and a circuit diagram of a preferred embodiment of the present invention. The engine idle speed automatic flameout system of the embodiment is set in one of the engines 10 . On the locomotive, including 7 M442303: a vehicle speed sensor 21' - engine speed sensor 22, a timer 23, an idle stop switch 24, an idle stop control switch 26, a gear position detector 27. A meter indicator light 25, a power control switch 11 electrically connected to the engine 1〇 and the idle total fire control switch 26, and an idle speed bonfire control unit 30° wherein the 'vehicle speed sensor 21 is used to measure the locomotive The vehicle speed, the engine speed sensor 22 is used to measure the speed of the engine 1〇, and the timer 23 is used to measure the duration of the engine 1〇 measured by the engine speed sensor 22 when the speed is less than a predetermined speed, and the gear position is detected. The detector 27 is used to detect the gear position of the locomotive, and the idle gun switcher 24 can provide the rider to select and control the operation mode of the locomotive to be an idle automatic extinguishing or a non-idling automatic flameout state, and the idle speed extinguishing control unit 30 Sensor 21 is connected to the vehicle speed, engine speed sensing device 22, a timer 23, the idle switch 24 fire-law, dashboard lights 25, idle put out the fire control switch 26 and the shift position detector 27. As shown in the figure 'When the engine 10 is in the starting state and the idle stop switch 24 is in the idle automatic stop mode, the vehicle speed sensor 21 measures the vehicle speed to zero and the timer 23 measures the engine 1 转速 the speed is less than the predetermined speed. When the time exceeds a predetermined time, and the gear position detector 27 detects that the gear position of the locomotive is an empty slot, the idle speed flameout control unit 3 outputs a signal to the idle reduction control switch 26' to control the power control switch. The power is turned off and the control engine 10 is turned off. In addition, when the engine 10 is in the starting state and the idle bonfire switch 24 is in the operation mode of not idling and automatic flameout, even if the vehicle speed sensor 21 measures the vehicle speed to zero and the timer 23 measures the speed of the engine 1 小于 is less than the predetermined speed. When the M442303 time exceeds a predetermined time, the idle stop control unit 3 does not output any signal that the control engine 10 is turned off, that is, at this time, the rider sets the operation mode of the locomotive to be automatic ignition without idle. In addition, when the engine 10 is in the starting state and the idle stop switch 24 is in the operation mode of the forced-speed automatic flameout, if the gear position detected by the gear position detector 27 is not neutral, the vehicle speed sensor 21 measures the vehicle speed. If the duration of the timer 23 is less than the predetermined speed for more than a predetermined time, the idle stop control unit 30 does not output any control engine bonfire signal, so as to avoid the locomotive gear position is not Nothing to start again. In the present embodiment, the predetermined time is set to 1 minute, the predetermined rotational speed of the engine 1 is set to 2000 rpm, and the idle stop switch 24 is a push switch, which is convenient for the locomotive rider to control the selected locomotive. The operation mode is idling automatic 媳 'fire or not, 3⁄4 speed automatic bonfire. And the operation mode of the idle bonfire switch 24 and the gear position detected by the gear position detector 27 are displayed on the indicator light 25 of the locomotive, so that the rider can quickly and clearly know the operation mode. In order to decide whether to switch the change operation mode. As shown in Figure 4, the step of starting the engine 1 is: the rider first activates the power switch 14 to connect the battery 13, and then manually activates the brake switch 15, at which time the brake light 16 will be on, that is, the first brake circuit is required. The engine 1 can be started to avoid the explosion, and the start switch 17 is pressed again. After the start control switch 19 is turned on, the starter motor 18 is turned on, and then the engine 10 is started by the power control switch π and the igniter 12. In addition, when the locomotive is in idle speed, that is, the engine 1 〇 is in the starting state and the idling stop switch 24 is in the idling automatic flameout operation mode, the vehicle speed M442303 sensor 21 measures the vehicle speed to zero and the timer 23 measures the engine 10 When the transfer time is less than 2000 辂 / min for more than 1 minute, and the gear position detector 27 detects that the locomotive gear position is neutral, the idling stop control unit 30 outputs a signal to the idling stop control switch 26, idle After the flameout control switch 26 receives the signal output by the idle reduction control unit 30, the power control switch 11 electrically connected to the engine 10 can be controlled, thereby controlling the engine 10 to be turned off, without the need for the rider to turn by hand as in the prior art. The key cuts off the power. In the present embodiment, the idling stop control switch 26 is a normally closed type relay. As shown in FIG. 4, in the present embodiment, since the idle reduction control unit 3 is electrically connected to the start control switch 19 of the starter motor 18, when the locomotive is to be started again during the idle stop, only the start switch 17 needs to be pressed. That is, there is no need to manually pull the brake switch 15 as in the prior art, because the brake circuit has been electrically connected to each other by the idle speed control unit 30 and the start control switch 19. Therefore, the present embodiment can utilize the existing sensing components of the locomotive and the engine, and does not need to add an automatic sensing device such as a grip sensor or other additional sensing elements, which can save the cost and avoid the cost. The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims claimed herein is based on the scope of the patent application, and is not limited to the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram of a circuit of a conventional engine starting and extinguishing system. FIG. 2 is a system architecture diagram of another conventional engine idle stop. M442303 FIG. 3 is a system architecture diagram of the preferred embodiment of the present invention. Fig. 4 is a schematic view of a preferred embodiment of the present invention. [Main component symbol description] 10 Engine 12 Ignitor 14 Power switch 16 Xenon lamp 18 Starter motor 21 Speed sensor 23 Timer 25 Instrument indicator 27 Gear position detector 70 Engine 72 Ignitor 74 Power switch 76 Brake light 78 Start Motor 80 Instrument indicator · 91 Grip sensor 93 Timer 95 Engine 11 Power control switch 13 Battery 15 Brake switch 17 Start switch 19 Start control switch 22 Engine speed sensor 24 Ignition stop switch 26 Idle speed control switch 3 Speed control unit 71 Power control switch 73 Battery 75 Brake switch 77 Start switch 79 Start control switch 81 Gear position detector 92 Speed sensor 94 Control Zhuoyuan 96 gear position detector 11