201024137 六、發明說明： 【發明所屬之技術領域】 本發明關於一種車輛傾倒感測裝置，用以感測車輛傾 斜角度，藉以判斷是否停止車輛引擎控制器之作動。 【先前技術】 一般爲了防止引擎控制器（ECU)於車輛傾倒後仍持續 運轉而引發危險，遂有廠商於車輛内部裝設傾倒感測裝置 以感測車體之傾斜角度，當判斷車體傾斜角度過大時，可 〇 即刻停止車輛引擎控制器運作，避免危險情事發生。 既有傾倒感測裝置包含機械式及電子式的感測裝置。 機械式傾倒感測裝置如第三圖所示，係内部樞設一搖擺機 構（60)，並於搖擺機構（6〇)底部設有一磁鐵（61)，再於磁鐵 (61)下方間隔設置一霍爾元件（62) ’當車輛發生傾倒時， 磁鐵（61)與霍爾元件（62)之間的相對位置係產生改變，霍 爾兀件（62)遂因磁場變化而產生感測信號，藉以判定車輛 狀態。 © 由於傳統的機械式傾倒感測裝置佔空間，且於外部碰 撞或搖擺機構（60)長期使用導致擺動不良或完全卡住不動 時’可能引起引擎控制器錯誤作動。 關於電子式傾倒感測裝置，可參考中華民國核准公告 第M335683號新型專利，主要使用一偵測車輛傾斜角度 之加速度感測器以及一連接該加速度感測器之微處理晶 片，利用該微處理晶片依照加速度感測器所測得之各軸向 加速度變化量加以計算數值，而判斷正確的傾倒狀況並輸 出判斷資訊。然而所使用之微處理晶片成本昂貴，將使得 201024137 車輛製造成本相對提高β 疋=如何提供有效且成本相對低廉之傾倒感測裝 置，係有待進一步解決之必要。 【發明内容】 Ο 述說月了知，既有機械式傾倒感測裝置佔办 長期使用有容易故二 f置之數位有内建於電子式傾倒感測 數位曰曰片其價格不斐’使得成本亦相對提高許多。 ^於此，本發明之主要目的在於提供一種車輛傾倒 感測裝置’不具有機械式裝置之缺失，且可以相對低廉之 成本同樣達到電子式感測車柄傾斜角度，並判斷是否停止 車輛引擎控制器之作動。 靜ΐίί述目的所使用之技術手段，係、令該車柄傾倒感 測裝置包含： -感測器’係感應車體傾斜狀態而發出感測信號； 一比較電路，係連接感測器，該比較電路係根據感測 器所傳遞的感測信號判斷車體傾斜角度是否大於一臨界 值，進而傳遞一控制信號；以及 | 開關電路係連接該比較電路而接收前述控制信號， 根據該控制信號而控制一引擎控制器是否運作。 感測器所傳遞的感测信號係對應車體的傾斜角度，前 述比較電路可藉由判斷感測器輸人之感測信號㈣值大: 介於或超出-特定電壓值範圍，而判讀車體左右傾斜角度 介於或超出合理範圍，〜二认， 又 圍仗而輸出不同控制信號至開關電 路，提供該開關電路作；^汁诚· 电峪作為依據，以切換使引擎控制器繼續 201024137 運作或中止。是以， 式長期使用導致作動 比較電路以類比轉數 知採用高價格之數位 本發明相較於習知技術，不但無機械 不良的情況產生，且透過設計單純的 位方式判讀車體傾角是否過大，比習 晶片的方式更能節省成本。 【實施方式】 請參考第一圖及第二圖所示，係本發明車輛傾倒感測 裝置一較佳實施例之方塊示意圖及電路圖，係包含： © — $測器（1 G) ’係感應車體傾斜狀態而發出感測信號， 本實施例中，該感測器（10)可為—加速度感測器（G_201024137 VI. Description of the Invention: [Technical Field] The present invention relates to a vehicle tilt sensing device for sensing a tilt angle of a vehicle to determine whether to stop the operation of the vehicle engine controller. [Prior Art] Generally, in order to prevent the engine controller (ECU) from continuing to operate after the vehicle is dumped, the manufacturer may install a dumping sensing device inside the vehicle to sense the tilt angle of the vehicle body, and determine the tilt of the vehicle body. When the angle is too large, the vehicle engine controller can be stopped immediately to avoid dangerous situations. Both the tilt sensing device includes mechanical and electronic sensing devices. As shown in the third figure, the mechanical tilting sensing device is internally provided with a rocking mechanism (60), and a magnet (61) is arranged at the bottom of the rocking mechanism (6〇), and then arranged under the magnet (61). Hall element (62) 'When the vehicle is dumped, the relative position between the magnet (61) and the Hall element (62) changes, and the Hall element (62) generates a sensing signal due to a change in the magnetic field. In order to determine the state of the vehicle. © Due to the space occupied by the traditional mechanical tilt sensor, and the external impact or swing mechanism (60) caused by poor long-term use or poorly stuck, it may cause the engine controller to malfunction. For the electronic dumping sensing device, refer to the new patent of the Republic of China Approved Announcement No. M335683, mainly using an acceleration sensor for detecting the tilt angle of the vehicle and a micro processing wafer connected to the acceleration sensor, using the micro processing The wafer calculates the value according to the amount of change in the axial acceleration measured by the acceleration sensor, and determines the correct dumping condition and outputs the judgment information. However, the cost of the micro-processed wafers used will make the 201024137 vehicle manufacturing cost relatively higher. β 疋 = How to provide an effective and relatively low cost dumping sensing device is necessary for further resolution. [Description of the Invention] Ο 月 月 月 月 月 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , It has also increased a lot. Here, the main object of the present invention is to provide a vehicle dump sensing device that does not have the absence of a mechanical device, and can simultaneously achieve an electronic sensing handle tilt angle at a relatively low cost, and determine whether to stop the vehicle engine control. Actuator. Statically, the technical means used for the purpose of the purpose is that the handle tilting sensing device comprises: - the sensor 'is sensing the tilt state of the vehicle body to emit a sensing signal; The comparison circuit determines whether the tilt angle of the vehicle body is greater than a threshold value according to the sensing signal transmitted by the sensor, and further transmits a control signal; and | the switch circuit is connected to the comparison circuit to receive the control signal, according to the control signal Controls whether an engine controller is working. The sensing signal transmitted by the sensor corresponds to the tilt angle of the vehicle body, and the comparison circuit can determine the value of the sensing signal (4) of the sensor input by: the value of the signal value is between or exceeded: The tilt angle of the left and right sides of the body is between or beyond a reasonable range, and the two control signals are outputted to the switch circuit to provide the switch circuit. The juice is used as the basis to switch the engine controller to continue 201024137. Operation or suspension. Therefore, the long-term use causes the operation comparison circuit to use the analogy of the number of revolutions to use the high price. Compared with the prior art, the present invention not only has no mechanical defects, but also determines whether the vehicle body inclination is too large by designing a simple bit mode. It is more cost effective than the way of learning the chip. [Embodiment] Please refer to the first and second figures, which are block diagrams and circuit diagrams of a preferred embodiment of the vehicle tilt sensing device of the present invention, including: © — Measurer (1 G) In the embodiment, the sensor (10) can be an acceleration sensor (G_).
SenS〇0’可於感應車體傾倒角度時，隨不同的角度對應發 *不同電壓準位的信號作為感測信號；如第二圖所示，該 感測器（10)於本實施例中可同時感測該車體三轴向的傾斜 狀恝，故可包含三個軸向輸出端（1〇11〇2,1〇3)以分別輸出 不同軸向所測得的感測信號； 一比較電路（20)，係連接感測器（1〇)，該比較電路（2〇) ® 係根據感測器（1 〇)所傳遞的感測信號判斷車體傾斜角度是 否大於一臨界值’進而傳遞一控制信號；如第二圖所示， 本實施例中該比較電路（20)係包含一第一比較器（21>以及 一第二比較器（22) ’係各具有一同相輸入端（210,220)、一 反相輸入端（211,221)以及一輸出端（212,222);其中，該 第一比較器（21)之同相輸入端（210)與第二比較器（22)之反 相輸入端（221)係共同連接該感測器（1〇);該第一比較器（21) 之反相輸入端（211)係連接一高參考電壓V2(例如2.48伏 特）；該第二比較器（22)之同相輸入端（220)連接一低參考 201024137 電壓V1 (例如1 1伏特）；及 一開關電路（30)，係連接該比較電路（20)而接收其所 傳遞之控制信號’根據該控制信號而控制一裝設於車體内 的引擎控制器（5〇)是否運作，如第二圖所示，本實施例中 §亥開關電路（30)主要包含一電晶體（31)，其基極連接至前 述第一比較器（21)與第二比較器（22)之輸出端（212,222)， 該分壓電路（32)由數個電阻串接於一定電壓5V與接地端 之間所構成’其分壓中點係連接該電晶體（31)之集極而作 ® 為該開關電路（30)之輸出端。 爲配合感測器（1〇)之三個軸向輸出端（1〇11〇21〇3); 該車輛傾倒感測裝置可進一步包含一開關裝置（4〇)，該開 關裝置（40)係具有三輸入端（4〇1,4〇2 4〇3)分別連接該三個 軸向輸出端（101,102,103)，該開關裝置（4〇)並具有一輸出 鸲（404)連接該比較電路（2〇)之輸入端（亦即第一比較器（2，） 之同相輸入端（210)與第二比較器（22)之反相輸入端 (221 ))，该開關裝置（40)係供切換各轴向感測信號之輸出 © 與否。 以第二圖為例，當感測器（1〇)傳遞一感測信號至比較 電路（20)時，該感測信號係分別輸入第一及第二比較器 (21,22)，右感測化號電壓值介於低參考電壓vi與高參考 電C V2之間日守，代表車體與地面垂直線相比較之左右傾 斜角度皆小於一臨界角度，此時第一及第二比較器（21，22) 皆輪出0V的低準位電壓；若感測信號電壓值低於低參考 電壓V1或是高於高參考電壓V2曰寺，即代表車體與地面垂 直線相比較之左右傾斜角度皆超過臨界角度，有翻覆之 .201024137 虞，此時筮_ + ^ 或第二比較器（21,22)係輸出5V的高準位電 壓。 ^ 低準位電壓輸入至開關電路（30)時，其中，低 電壓（〇V)無法驅動前述作為開關之電晶體（31)導通， 使得開關電路（3〇)透過其分壓電路（32)輪出—可使引擎控 曰：’准持運作狀態的適當分壓；高準位電壓（5V)則驅動電 體導通’此時開II電路（3〇)之分壓電路（32)所輸出的分 、’、法使引擎控制器繼續運作，從而使引擎控制器停 上所述，本發明藉由設計比較電路（20)配合適當高 低多考電I ’以對感測器（1 〇)輸人之感測信號進行適當之 角判斷攸而輸出尚、低電壓準位的控制信號給開關電 路（30)開關電路（3G)再據以切換引擎控制器運作或停止。 此類比轉數位的方式相較於習知技術採用高價的數位晶片 進^資料運算判斷，可以更低廉的成本提供㈣的車體傾SenS〇0' can be used as a sensing signal corresponding to different voltage levels when sensing the tilt angle of the vehicle body; as shown in the second figure, the sensor (10) is in this embodiment. The three-axis inclined ridges of the vehicle body can be sensed at the same time, so three axial output ends (1〇11〇2, 1〇3) can be included to respectively output the sensing signals measured in different axial directions; The comparison circuit (20) is connected to the sensor (1〇), and the comparison circuit (2〇) ® determines whether the tilt angle of the vehicle body is greater than a critical value according to the sensing signal transmitted by the sensor (1 〇) Further, a control signal is transmitted; as shown in the second figure, in the embodiment, the comparison circuit (20) includes a first comparator (21) and a second comparator (22) each having a non-inverting input. (210, 220), an inverting input terminal (211, 221) and an output terminal (212, 222); wherein the non-inverting input terminal (210) of the first comparator (21) and the inverting input terminal of the second comparator (22) (221) is commonly connected to the sensor (1〇); the inverting input terminal (211) of the first comparator (21) is connected to a high Test voltage V2 (eg 2.48 volts); the non-inverting input (220) of the second comparator (22) is connected to a low reference 201024137 voltage V1 (eg 1 1 volt); and a switching circuit (30) is connected to the comparison The circuit (20) receives the control signal transmitted thereto, and controls whether an engine controller (5〇) installed in the vehicle body operates according to the control signal. As shown in the second figure, in the present embodiment, The switching circuit (30) mainly comprises a transistor (31) whose base is connected to the output terminals (212, 222) of the first comparator (21) and the second comparator (22), and the voltage dividing circuit (32) A plurality of resistors are connected in series between a certain voltage of 5 V and the ground terminal. The midpoint of the voltage division is connected to the collector of the transistor (31) as the output terminal of the switching circuit (30). Three axial output terminals (1〇11〇21〇3) of the sensor (1〇); the vehicle tilt sensing device may further comprise a switching device (4〇), the switching device (40) having three The input terminals (4〇1, 4〇2 4〇3) are respectively connected to the three axial output terminals (101, 102, 103), and the switching device (4) And having an output 鸲 (404) connected to the input of the comparison circuit (2〇) (ie, the inverting input of the non-inverting input (210) of the first comparator (2,) and the second comparator (22) End (221)), the switching device (40) is for switching the output of each axial sensing signal © or not. Taking the second figure as an example, when the sensor (1〇) transmits a sensing signal to the comparison circuit (20), the sensing signal is input to the first and second comparators (21, 22), respectively, and the right sensing voltage value is between the low reference voltage vi and the high reference power C V2, representing The left and right tilt angles of the vehicle body compared with the vertical line of the ground are less than a critical angle. At this time, the first and second comparators (21, 22) all emit a low level voltage of 0V; if the sense signal voltage value is lower than The low reference voltage V1 or higher than the high reference voltage V2曰, which means that the left and right tilt angles of the car body and the vertical line of the ground exceed the critical angle, there is overturning. 201024137 虞, at this time 筮 _ + ^ or second The comparator (21, 22) outputs a high-level voltage of 5V. ^ When the low level voltage is input to the switching circuit (30), the low voltage (〇V) cannot drive the transistor (31) as the switch to be turned on, so that the switching circuit (3〇) passes through the voltage dividing circuit (32) ) Rotation - allows the engine to control: 'appropriate partial pressure of the pre-operating state; high-level voltage (5V) drives the electric body to conduct 'this time open circuit II (3 〇) voltage dividing circuit (32) The output of the sub-, ', the law allows the engine controller to continue to operate, so that the engine controller is stopped. The present invention is designed to compare the circuit (20) with the appropriate high and low multi-test power I' to the sensor (1) 〇) The sensing signal of the input person is judged at an appropriate angle, and the control signal of the current and low voltage levels is output to the switching circuit (30), and the switching circuit (3G) is further switched to operate or stop the engine controller. This type of digital-to-digital conversion method is superior to the conventional technology in the use of high-priced digital wafers for data calculation, which can provide (four) body tilting at a lower cost.
倒女全防護效果，i同樣*具有機械式傾倒感測裝置擺動 機構易發生故障之缺失。 【圖式簡單說明】 第一圖：本發明-較佳實施例之方塊示意圖。 第一圖.本發明一較佳實施例之電路圖。 第三圖：既有機械式傾倒感測裝置之剖面圖。 【主要元件符號說明】 201024137 (10)感測器 (101,102,103)軸向輸出端 (20)比較電路 (21)第一比較器 (22)第二比較器 (210,220)同相輸入端 (211,221)反相輸入端 (212,222)輸出端 (30)開關電路 (31)電晶體 (40)開關裝置 (401,402,403)輸入端 (404)輸出端 (50)引擎控制器 (60)搖擺機構 φ (62)霍爾元件 (61)磁鐵The full protection effect of the inverted female, i also * has a mechanical tilting sensing device swinging mechanism is prone to the lack of failure. BRIEF DESCRIPTION OF THE DRAWINGS First Embodiment: A block diagram of the present invention - a preferred embodiment. First Fig. is a circuit diagram of a preferred embodiment of the invention. Figure 3: A cross-sectional view of a mechanical tilting sensing device. [Main component symbol description] 201024137 (10) Sensor (101, 102, 103) axial output terminal (20) comparison circuit (21) first comparator (22) second comparator (210, 220) non-inverting input terminal (211, 221) Input (212, 222) Output (30) Switching Circuit (31) Transistor (40) Switching Device (401, 402, 403) Input (404) Output (50) Engine Controller (60) Rocking Mechanism φ (62) Hall Element (61) Magnet