TWI680891B - Body load measuring device - Google Patents
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- TWI680891B TWI680891B TW107140689A TW107140689A TWI680891B TW I680891 B TWI680891 B TW I680891B TW 107140689 A TW107140689 A TW 107140689A TW 107140689 A TW107140689 A TW 107140689A TW I680891 B TWI680891 B TW I680891B
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Abstract
本發明係提供一種車身負載量測裝置，本發明係於避震器中整合一可變電阻量測機制，藉由可變電阻的電壓變化推算避震器的上下壓縮/拉伸位移量，可用於推算出車體底盤高度、車輛姿態估測、車輛載重、個別輪胎負重等各種行車動態控制需求。 The present invention provides a vehicle body load measurement device. The present invention integrates a variable resistance measurement mechanism in the shock absorber. It can be used to estimate the vertical compression/tensile displacement of the shock absorber through the voltage change of the variable resistance. It is used to calculate various driving dynamic control requirements such as the height of the chassis of the vehicle body, the estimation of the vehicle attitude, the vehicle load, and the load of individual tires.
Description
本發明係與電子量測技術有關，特別係指一種用於車輛負載或車重量測之車身負載量測裝置。 The present invention relates to electronic measurement technology, and particularly refers to a vehicle body load measurement device for vehicle load or vehicle weight measurement.
一般行駛於公共道路之車輛如轎車、機車、公車、貨車、聯結車等車輛，依據交通法規均有設立其載重(車體總重)與車高等限制，以避免損壞道路或肇生交通危安事故。然而傳統車輛本身設計並無即時量測自車重量、高度或距離地面高度等儀器裝置，只能透過固定式地磅量測。同時車輛本身的懸吊系統亦會影響車輛姿態與載重變化，如果車輛行駛過程中懸吊系統之避震器、阻尼等元件損壞，造成車體高度下降、側傾、重心改變而導致易生事故。較新款的車輛會內建車體姿態檢測系統，但附加此功能會大幅提升車輛購置成本，因此難以推廣到大多數的車輛用戶。 Generally, vehicles driving on public roads such as cars, locomotives, buses, trucks, and connecting vehicles have restrictions on their load (total body weight) and vehicle height according to traffic regulations to avoid damage to the road or traffic safety. accident. However, the traditional vehicle itself is not designed to measure the weight, height, or height above the ground of the vehicle in real time. It can only be measured through a fixed weighbridge. At the same time, the vehicle's own suspension system will also affect the vehicle's attitude and load changes. If the suspension system's shock absorbers and damping components are damaged during the vehicle's driving process, the vehicle's height will drop, the roll, and the center of gravity will change, leading to accidents . Newer vehicles will have a body attitude detection system built in, but the addition of this function will greatly increase the cost of vehicle purchase, so it is difficult to promote it to most vehicle users.
現有技術中，在車輛懸吊系統如避震器、車體底盤相關部位設置感測器量測所需訊息，藉以得知系統操作狀況或用來進行系統的控制，已為車輛技術領域之習知方法，2011年已有公告號I339261、名稱「智慧型車重量測系統及其方法」之中華民國專利，宣告避震器位移之量測方法和系統佈 置方式，藉以估測車重。2013年並有公告號US8448963B2、名稱「DISPLACEMENT MEASUREMENT SYSTEM AND METHOD FOR A SUSPENSION SYSTEM INAVEHICLE」之美國專利，宣告量測避震器位移之佈置方式。1999年另有一篇公告號US5987366A、名稱「DAMPING CONTROL DEVICE FOR A STABILIZER BAR」之美國專利，宣告藉由防傾避震器位移量之量測來進行避震器之控制 In the prior art, sensors are provided in the relevant parts of the vehicle suspension system such as the shock absorber and the chassis of the vehicle to measure the required information, so as to know the operating status of the system or be used to control the system, which has been used in the field of vehicle technology. Know the method. In 2011, there was a Republic of China patent with the publication number I339261, titled "Smart Car Weight Measurement System and Method", which announced the measurement method and system layout of the shock absorber displacement. To determine the vehicle weight. In 2013, there was a US patent with the publication number US8448963B2 and the name "DISPLACEMENT MEASUREMENT SYSTEM AND METHOD FOR A SUSPENSION SYSTEM INAVEHICLE", which announced the arrangement of measuring the displacement of the shock absorber. In 1999, there was another US Patent No. US5987366A with the name "DAMPING CONTROL DEVICE FOR A STABILIZER BAR", which announced the control of the shock absorber by measuring the displacement of the anti-tilt shock absorber.
先前用於懸吊系統避震器位移量測之技藝，如中華民國專利I339261與美國專利US8448963B2，皆係以在車體內的懸吊系統元件附近架設電子感測器之方式執行，在車輛底盤空間非常狹隘之區域額外架設感測器，不僅空間之佈置不易、容易和其他物件干涉，且因為工作環境惡劣(泥沙、灰塵、水氣等等)，容易造成電子感測元件損壞，若再增設保護裝置如防塵套、防護蓋等等，不但更加占用底盤的空間，也增添購置與維護成本。 Previous techniques used for suspension system shock absorber displacement measurement, such as the Republic of China Patent I339261 and the US Patent US8448963B2, were implemented by erecting electronic sensors near the suspension system components in the vehicle body, in the vehicle chassis space Additional sensors are installed in a very narrow area. Not only is the space layout not easy, it is easy to interfere with other objects, but because of the harsh working environment (sand, dust, moisture, etc.), it is easy to cause damage to the electronic sensing element. Protective devices such as dust jackets, protective covers, etc., not only occupy more space on the chassis, but also increase the cost of purchase and maintenance.
目前常用以量測避震器位移量之裝置為拉線式位移計，如圖1所示，其作用方式係將位移計本體置於避震器之某一支座上(如上座或下座)，將拉出之線頭設置在另一避震器之支座上，隨著避震器之彈跳運動，拉線的相對長度亦隨之改變，再配合串聯之可變電阻即能量測出避震器之位移量。這種拉線式位移計用於車輛上的主要缺點如前所述，拉線裝置會占用車體底盤額外空間，或者說必須與底盤懸吊系統緊密 配合、安裝空間少，且拉線容易被碎石、泥沙等車體底盤噴飛之顆粒擊中損壞，導致裝置失效無法作動。 At present, the device commonly used to measure the displacement of the shock absorber is a wire-type displacement gauge. As shown in FIG. 1, the function mode is to place the body of the displacement gauge on a certain support of the shock absorber (such as the upper seat or the lower seat). ), set the drawn wire end on the support of another shock absorber, as the shock absorber bounces, the relative length of the pull wire will also change, and then the variable resistance connected in series is the energy measurement The displacement of the shock absorber. The main shortcomings of this cable-type displacement gauge used in vehicles are as mentioned above. The cable-drawing device will occupy extra space on the chassis of the car body, or it must be tight with the chassis suspension system. The coordination and installation space are small, and the cable is easily damaged by particles flying from the chassis of the car body such as gravel, sand, etc., resulting in the failure of the device and the inability to move.
為解決先前技術之缺點，本發明係提供一種車身負載量測裝置，本發明係於車用避震器中整合一可變電阻量測機制，藉由可變電阻的電壓變化推算避震器的上下壓縮/拉伸位移量，可用於推算車體底盤高度、車輛姿態估測、車輛載重、個別輪胎負重等各種行車動態控制需求。 In order to solve the shortcomings of the prior art, the present invention provides a body load measurement device. The present invention integrates a variable resistance measurement mechanism in a vehicle shock absorber, and estimates the shock absorber's The amount of vertical compression/tensile displacement can be used to estimate various driving dynamic control requirements such as the height of the vehicle body chassis, the estimation of the vehicle attitude, the vehicle load, and the load of individual tires.
本發明係為一種車身負載量測裝置，係設置於一具伸縮避震功能之車用避震器上，該避震器由一內筒與一外筒組成，該車身負載量測裝置係包括：一可變電阻條，係設置於該內筒之外表面，長度不小於該避震器之壓縮-拉伸行程；二電阻感應端，其中一電阻感應端設置於該內筒不朝向該外筒之一端、並電性接觸該可變電阻條，另一電阻感應端設置於該外筒容許該內筒進出之一端、並電性接觸該可變電阻條；一計算單元，係電性連接該二電阻感應端，該計算單元係在其中一電阻感應端施加一固定電壓，並偵測另一電阻感應端回傳電壓之變化；其中該避震器進行壓縮或拉伸動作時，該計算單元係偵測到回傳電壓發生變化，據此計算出未被該外筒遮蔽的可變電阻條區段長度，換算為該避震器之壓縮或拉伸位移量。 The invention is a vehicle body load measurement device, which is arranged on a vehicle shock absorber with a telescopic shock absorber function. The shock absorber is composed of an inner cylinder and an outer cylinder. The vehicle body load measurement apparatus includes : A variable resistance bar, which is installed on the outer surface of the inner cylinder, the length is not less than the compression-stretch stroke of the shock absorber; two resistance sensing ends, one of which is located on the inner cylinder not facing the outside One end of the barrel is in electrical contact with the variable resistance bar, and the other resistance sensing end is provided at one end of the outer barrel to allow the inner barrel to enter and exit, and is in electrical contact with the variable resistance bar; a computing unit is electrically connected For the two resistance-sensing ends, the calculation unit applies a fixed voltage to one of the resistance-sensing ends, and detects the change in the return voltage of the other resistance-sensing end; where the shock absorber performs a compression or extension action, the calculation The unit detects the change in the return voltage, and calculates the length of the variable resistance bar section that is not covered by the outer cylinder, and converts it into the compression or tensile displacement of the shock absorber.
本發明之一實施例中，該可變電阻條係額外貼附 於該內筒之外表面。 In one embodiment of the present invention, the variable resistance strip is additionally attached On the outer surface of the inner cylinder.
本發明之一實施例中，該可變電阻條係與該內筒一體成形製成。 In one embodiment of the present invention, the variable resistance strip is integrally formed with the inner cylinder.
本發明之一實施例中，該計算單元係設置於該避震器表面。 In an embodiment of the invention, the calculation unit is disposed on the surface of the shock absorber.
以上之概述與接下來的詳細說明及附圖，皆是為了能進一步說明本發明達到預定目的所採取的方式、手段及功效。而有關本發明的其他目的及優點，將在後續的說明及圖示中加以闡述。 The above summary, the following detailed description and the accompanying drawings are intended to further illustrate the methods, means and effects of the present invention to achieve the intended purpose. The other objects and advantages of the present invention will be explained in the subsequent description and illustration.
10‧‧‧避震器 10‧‧‧Shock absorber
11‧‧‧內筒 11‧‧‧Inner tube
12‧‧‧外筒 12‧‧‧Outer cylinder
13‧‧‧可變電阻條 13‧‧‧Variable resistance strip
14‧‧‧計算單元 14‧‧‧Calculation unit
14A、14B‧‧‧電阻感應端 14A, 14B‧‧‧resistance sensing terminal
圖1係為先前技術之拉線式位移計結構示意圖。 FIG. 1 is a schematic structural diagram of a wire-type displacement gauge of the prior art.
圖2係為本發明之車身負載量測裝置實施例結構示意圖。 2 is a schematic structural view of an embodiment of a body load measuring device of the present invention.
以下係藉由特定的具體實例說明本發明之實施方式，熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本發明之其他優點與功效。 The following is a description of the embodiments of the present invention by specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
圖2係為本發明之車身負載量測裝置實施例結構示意圖，如圖所示，該實施例係包括：一避震器10，該避震器10由一內筒11與一外筒12組成；可變電阻條13，係設置於該內筒11之外表面，由於實際的避震器構型是內筒插在該外筒裡，因此內筒表面的可變電阻條常時都會有部分長度被該外筒12
遮蔽，該可變電阻條13之總長度L不應小於該避震器之壓縮-拉伸最大行程，才足以換算出該避震器10之壓縮/拉伸位移量；二電阻感應端14A、14B，其中一電阻感應端14A設置於該內筒不朝向該外筒之一端、並與該可變電阻條呈電性接觸(導通)，另一電阻感應端14B設置於該外筒容許該內筒進出之一端、並與該可變電阻條呈電性接觸(導通)；一計算單元14，係電性連接該二電阻感應端14A、14B，該計算單元係在其中一電阻感應端施加一固定電壓，並偵測另一電阻感應端回傳電壓之變化，當該避震器10進行壓縮或拉伸動作時，該可變電阻條13被該外筒遮蔽的區段長度隨之改變，因此該二電阻感應端之間的電阻值也隨之變化，造成該計算單元14偵測到回傳電壓發生變化，計算單元14據此計算出未被該外筒遮蔽的可變電阻條13區段長度，再比對預先得知的避震器於最大拉伸、最小壓縮狀態下的電壓值，即可推導算出該避震器當前之壓縮或拉伸位移量，進而計算出該車身負載量測裝置安裝的車身位置(避震器安裝位置)與該位置輪胎所受的負載量。
2 is a schematic structural diagram of an embodiment of a body load measuring device of the present invention. As shown in the figure, this embodiment includes: a
本發明之一實施例中，該可變電阻條係額外貼附於該內筒之外表面，例如使用現成的直線型可變電阻計貼附於該內筒之外表面，惟需注意體積必須能容入該內筒與該外筒間的空間，此種作法亦適用於為不具車體姿態偵測控制系統的舊款車輛，額外安裝車體高度/重量量測裝置之場合。 In one embodiment of the present invention, the variable resistance strip is additionally attached to the outer surface of the inner cylinder, for example, using a ready-made linear variable resistance meter attached to the outer surface of the inner cylinder, but it is necessary to pay attention to the volume It can be accommodated in the space between the inner cylinder and the outer cylinder. This method is also applicable to the case where the vehicle height/weight measuring device is additionally installed for the old vehicles without body attitude detection and control system.
本發明之一實施例中，該可變電阻條係與該內 筒一體成形製成。例如以機械加工方式在內筒表面加工出一道電阻線區段，作為電阻感應端與計算單元量測之依據。此種作法可更節省本發明之車身負載量測裝置所占用的空間，惟加工製造難度較高。 In one embodiment of the present invention, the variable resistance strip is connected to the internal The cylinder is integrally formed. For example, a resistance line segment is machined out on the surface of the inner cylinder as a basis for measuring the resistance sensing end and the calculation unit. This method can save more space occupied by the body load measuring device of the present invention, but it is more difficult to manufacture.
本發明之一實施例中，該計算單元係設置於該避震器表面，與該避震器成一整組，方便直接替換掉傳統避震器，但要注意計算單元(微電腦、晶片)占用空間與是否能承受避震器所在的底盤工作環境。該計算單元亦可整合到車體內的行車電腦、ECU等現有電子設備內，意即該車身負載量測裝置直接把信號傳給車內既有控制系統進行整合運用，依使用者需求而定。 In one embodiment of the present invention, the computing unit is disposed on the surface of the shock absorber, and forms a whole group with the shock absorber, which is convenient to directly replace the traditional shock absorber, but pay attention to the space occupied by the computing unit (microcomputer, chip) And whether it can withstand the working environment of the chassis where the shock absorber is located. The calculation unit can also be integrated into existing electronic devices such as driving computers and ECUs in the car body, which means that the body load measurement device directly transmits signals to the existing control system in the car for integration and use, depending on user needs.
本發明之一實施例中，該車身負載量測裝置實際運用於車輛底盤時，具有複數組車身負載量測裝置(例如二組、四組等，視車輛底盤輪數或避震器型式而定)與一負載分配主控電腦，該複數組車身負載量測裝置係將各自量測之避震器位移量資訊傳至該負載分配主控電腦，該負載分配主控電腦係根據車身底盤不同位置之車身負載量測裝置回傳的不同負載信號，彙整判斷車身當前所承受之負載與車身姿態(是否偏向某一側等)藉以推算出整車各別輪胎之負重來達到車身負載分配並進行車身動態控制需求，搭配胎壓感知器等其他種類的感測裝置，可作為主動式車身姿態調整系統或車身安全防護系統等用途所需的參考資訊。 In one embodiment of the present invention, when the body load measurement device is actually used in a vehicle chassis, it has a plurality of body load measurement devices (such as two groups and four groups, etc., depending on the number of vehicle chassis wheels or the type of shock absorber) ) And a load distribution main control computer, the complex array of body load measurement devices transmits the respective measured shock absorber displacement information to the load distribution main control computer, and the load distribution main control computer is based on different positions of the body chassis The different load signals returned by the body load measurement device are aggregated to determine the current load and body posture (whether it is biased to a certain side, etc.) of the body to calculate the load of each tire of the vehicle to achieve the body load distribution and carry out the body Dynamic control requirements, combined with other types of sensing devices such as tire pressure sensors, can be used as reference information for applications such as active body attitude adjustment systems or body safety protection systems.
藉此，本發明係提供一種車身負載量測裝置，本發明將可變電阻計整合入車用避震器內部，節省現有技術使用拉線式位移計所占用的底盤空間，本發明所需元件數量少、建置維護成本低，且較能適應車輛底盤惡劣的工作環境。本發明之車身負載量測裝置可與車輛使用的避震器一體成形製作，亦可直接抽換代替傳統避震器，用於升級改良不具車體姿態偵測控制系統的舊款車輛，更符合消費者的經濟需求。本發明亦可用於偵測避震器機械元件之性能(彈性、負載能力等)是否有老化、損壞之情況，相較於傳統目視檢查，可提供更客觀精確的車輛維修參考資訊。 In this way, the present invention provides a vehicle body load measurement device. The present invention integrates a variable resistance meter into a vehicle shock absorber to save the chassis space occupied by the prior art using a wire-type displacement meter. The required components of the present invention The quantity is small, the construction and maintenance cost is low, and it can better adapt to the harsh working environment of the vehicle chassis. The body load measuring device of the present invention can be formed integrally with the shock absorber used by the vehicle, and can also be directly replaced to replace the traditional shock absorber. It is used to upgrade and improve the old vehicle without the body attitude detection control system, which is more in line with The economic needs of consumers. The invention can also be used to detect whether the performance (elasticity, load capacity, etc.) of the mechanical components of the shock absorber is aging or damaged. Compared with the traditional visual inspection, it can provide more objective and accurate reference information for vehicle maintenance.
上述之實施例僅為例示性說明本發明之特點及其功效，而非用於限制本發明之實質技術內容的範圍。任何熟習此技藝之人士均可在不違背本發明之精神及範疇下，對上述實施例進行修飾與變化。因此，本發明之權利保護範圍，應如後述之申請專利範圍所列。 The above-mentioned embodiments are only illustrative of the characteristics and effects of the present invention, rather than limiting the scope of the essential technical content of the present invention. Anyone who is familiar with this skill can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the rights of the present invention should be as listed in the scope of patent application mentioned later.
10‧‧‧避震器 10‧‧‧Shock absorber
11‧‧‧內筒 11‧‧‧Inner tube
12‧‧‧外筒 12‧‧‧Outer cylinder
13‧‧‧可變電阻條 13‧‧‧Variable resistance strip
14‧‧‧計算單元 14‧‧‧Calculation unit
14A、14B‧‧‧電阻感應端 14A, 14B‧‧‧resistance sensing terminal
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| Application Number | Priority Date | Filing Date | Title |
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| TW107140689A TWI680891B (en) | 2018-11-14 | 2018-11-14 | Body load measuring device |
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| TW107140689A TWI680891B (en) | 2018-11-14 | 2018-11-14 | Body load measuring device |
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| TWI680891B true TWI680891B (en) | 2020-01-01 |
| TW202017764A TW202017764A (en) | 2020-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107140689A TWI680891B (en) | 2018-11-14 | 2018-11-14 | Body load measuring device |
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| TW (1) | TWI680891B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173113A (en) * | 2021-05-10 | 2021-07-27 | 蒙城财富汽车有限公司 | Semi-mounted self-discharging carriage with automatic anti-slip body posture sensing function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI250256B (en) * | 2000-03-29 | 2006-03-01 | Lord Corp | Magnetically controlled friction damper |
| TWI339261B (en) * | 2007-06-22 | 2011-03-21 | Univ Mingchi Technology | |
| CN202686322U (en) * | 2012-06-06 | 2013-01-23 | 济南吉利汽车有限公司 | Resistance type brake pedal |
| CN103661719A (en) * | 2012-09-19 | 2014-03-26 | 株式会社昭和 | Motorcycle |
| CN103661745A (en) * | 2012-09-25 | 2014-03-26 | 株式会社昭和 | Vehicle height adjusting device for motorcycle |
-
2018
- 2018-11-14 TW TW107140689A patent/TWI680891B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI250256B (en) * | 2000-03-29 | 2006-03-01 | Lord Corp | Magnetically controlled friction damper |
| TWI339261B (en) * | 2007-06-22 | 2011-03-21 | Univ Mingchi Technology | |
| CN202686322U (en) * | 2012-06-06 | 2013-01-23 | 济南吉利汽车有限公司 | Resistance type brake pedal |
| CN103661719A (en) * | 2012-09-19 | 2014-03-26 | 株式会社昭和 | Motorcycle |
| CN103661745A (en) * | 2012-09-25 | 2014-03-26 | 株式会社昭和 | Vehicle height adjusting device for motorcycle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173113A (en) * | 2021-05-10 | 2021-07-27 | 蒙城财富汽车有限公司 | Semi-mounted self-discharging carriage with automatic anti-slip body posture sensing function |
| CN113173113B (en) * | 2021-05-10 | 2022-08-23 | 蒙城财富汽车有限公司 | Semi-mounted self-discharging carriage with automatic anti-slip body posture sensing function |
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| Publication number | Publication date |
|---|---|
| TW202017764A (en) | 2020-05-16 |
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