A7 B7 45 56 8 2 五、發明説明（） 〈發明領域〉 本發明係有關於一種扭力偵測器，尤指一種應用於電 動肋動自行車輔，及可檢出相對於脚踏板辑力、轉向之電 氣參考訊號者。 〈發明背景及先前技藝〉 按，電動自行車為目前頗為風行之交通代步工具之一 ，特別是在於環保觀念普遍深植人心之環境趨勢下，電動 自行車已頗有逐漸取代自行車成為未來輕型代步工具之主 流。然而，在電動自行車結構中，最主要之動力來源為諸 如電動馬達之輔助傅動動力源，因此，必需善加控制此一 輔助傳動動力源之蓮轉，方可使電動自行車在運轉及行験 操作之過程中，達到人車一體之效果，否則只有徒增電力 能源耗損及增添人員騎乘操作之安全問題。 然，在一般傳統之電動自行車結構中，簡單之輔助動 力源操控方式則是將該電動輔助傳動動力源（如馬達）裝 設於自行車前輪或後輪，藉由裝設在操作把手上之電氣開 關之開（on)或關（off)作為啟動電動輔助動力源之控制裝 置，藉由騎乘者手指廳按操作來啟動該輔助動力源，經由 該輔助傳動動力源投入全功率之輔肋動力，因此，該輔助 動力源之輸出功率並未經適當之控制及調整，極易造成無 謂之電力浪費。舉例而言，例如：在於電動自行車啟動時 ，該輔肋傳動動力源必需投入較大之扭力，以使輔助電動 自行車蓮轉，抑或是在於下坡或平坦路面行験時，該輔助 傅動動力源必需完全切斷不提供輔肋動力或投入較小之輔 ； 裝^-------訂-----；丨線 • , (請先聞讀背面之注意事項再填寫本頁) 經濟部中央橾準局員工消費合作社印裝 t 本紙伕尺度適用中國國家標隼（CNS ) A4規格（2丨0X 2^7公釐） 經濟部中央標準局男工消費合作社印袈 4 5 56 82 A7 B7 五、發明説明（） 助動力。 另夕卜，上述習知之電動自行車輔助動力輸出扭力控制 ，由於該輸入控制信號為單純之開、關型態，且所投入之 輔助動力之扭力亦為最大，並無法自動視該電動助動車之 實際腳踏板踩踏狀態及轉速來作調整及輔助，除了極易造 成無謂電力及人力之浪費外，在該電動肋動車行駛之過程 中，亦極易產生輔助動力瞬間投入或切斷時，如起步及停 車，由於該輔助傳動動力源於瞬間投入之扭力改變太快， 使該電動助動車產生晃動或震動不穩之狀態，而無法使該 電動助動車產生人車一體之效果。 再者，或有因而萌生改良者，以加油把手之結構及操 作方式，來控制該電動自行車中之輔助傳動動力源之輔助 動力投入大小，固然可較上述習知Μ開關Μ按控制方式稍 有改善其輔助動力及扭力投入之問題，但Μ單手加油方式 來操作該輔助傳動動力源之投入，必需憑藉駕駛者之目視 狀態及經驗判斷Μ轉動加油把手而控制輔助傳動動力源之 投入大小，因此，亦無法完全達到使電動自行車真正視路 況及實際之扭力需求狀而投入適當之動力及扭力，尤其是 在於長時間之行駛時，易使雙手肌肉緊蹦疲累或突發狀況 緊張失控，如將加油把手旋轉到最大，無法立即歸位，造 成操縱上產生失控而酿成意外災害。 除此之外，在相關先前專利技術文獻方面，如台潸申 請荼第84215538號「腳踏趨動馬達装置」，則揭示了一種 輔助動力馬達之動力投入控制方式，其缺點則如上述習知 -3 - 本纸伕尺度適用中國國家標隼（CNS ) Α4規格（210X297公釐） ---^-------------11------Φ. . . . <請先閲讀背面之注意事項-S填寫本頁) 455682 A7 B7 五、發明説明（） Μ加油把手方式控制之電動自車一般，無法真正視路況及 實際之扭力需求來達到適當輸出輔助動力之效果；此外， 在美國專利第5,900,703號案，則又掲示了在於腳踏板戶;t 傅動之齒盤上装設以若干磁鐵，並在車架對應位置上裝設 以磁餐開關之偵測結構，用Μ根據齒盤上之磁繊及車架上 之磁簧開關間之間距感應信號來控制啟動（on)輔助傅動動 力或切斷（off)輔助傳動動力，但其缺點係該如輔助傅動 動力源，如馬達施出功率均一，無法視實際路況投入不同 需求之功率，因此，在於不用大功率及杻力投入，但仍需 輔助傳動動力投入之狀態下，則需頻頻藉由機械式之剎車 來搭配控制，相對地，造成更多無效電力之耗損，致使電 動自行車之行程範圍縮小及輔助傅動動力之效率變差。 〈發明目的及概述〉 緣此，本發明之主要目的，即是在提供一種扭力偵測 器，藉由扭力變形元件（strain gage ) 直接偵測腳踏板 之實際踩踏力量，來決定電動自行車輔助動力馬達之投入 動力及扭力大小，可真實反應實際路況及駕駛者之踩踏扭 力需求，而投入適當大小之輔助動力及扭力，可使電動自 行車於行駛上更加順暢，並且使該輔助傳動動力更具有效 率* 本發明之再一目的，即是提供一種扭力偵測器，藉由 腳踏板之踩踏扭力需求，來控制電動自行車之輔助傳動動 力投入，可使電動自行車在行駛過程中完全由腳踏力量來 控制輔助傳動動力之輸出，涵不致緊張失控而酿成意外， 本紙張尺度通用中國國家橾皁（CNS ) A4規格（210X29?公釐> ---^-------批衣^------II------0 (請先閲讀背面之注意事啰為填寫本頁) 經濟部中央標準局負工消費合作社印裝 經濟部中央標準局貝工消費合作社印掣 45 56 8 2 A7 B7 五、發明説明（） 可確保電動自行車之行駛安全。 為達上述之目的，本發明之扭力偵測器，係藉由一變 形感測轉軸裝設於電動自行車中段車架之五通管内及傅動 齒盤，其兩端分別連結Μ腳踏板，Μ受腳踏板之踩踏驅動 旋轉，於變艇感測轉軸上設有若干個訊號連接端及轉向元 件，且該連接端連結於一變胳量放大器，由該變形最放大 器提供扭力變形感测轉軸受力轉動之相對扭力變形量之電 氣訊號輸出，此外，尚能藉由此訊號量測車速，Μ及，至 少一訊號檢出裝置，設於五通管上，具有若干個接觸棒及 一轉向感測元件，Μ伸入五通管内分別接觸於該變形感測 轉軸之訊號連接端及轉向元件之對應位置，藉Μ檢出腳踏 板之扭力感測電氣訊號及轉動方向訊號給電動自行車之馬 達動力控制器，Μ控制電動自行車之輔助動力馬達輸出適 當動力及扭力，或限制最高速度。 本發明之其他目的與詳细之構造，將藉由以下詳細之 說明而使之更為明確，同時參閱所附各圖，俾可使本發明 之技術内容更進一步地揭示明瞭，其中： (一）圖式部粉： 第一圖係本發明之立體分解结構圖； 第二圖係訊號檢出裝置之立體分解結構圖； 第三圖為一局部剖視放大圖，顯示訊號檢出裝置之接 觸棒及轉向感測元件於五通管内與扭力感測轉 軸之接觸端及對應轉向元件； 第四圖係該扭力感測轉軸内之變彩量放大器電路圖； 一 5 一 本纸張尺度適用中國國家標準( CNS ) Α4現格（210X297公釐） . 裝 訂 線 (諳先閲讀背面之注意事吼另填寫本頁) A7 45 56 8 2 _B7_ 五、發明説明（） 第五圖係本發明之另一較佳實施例圖； 第六圖係第五圖之局部結構圖，顯示該扭力偵測赞件 與扭力感測元件間之結構； 第七圖為第六圖之立體分解結構圖； 第八圖為第六圖之前視圖，顯示該扭力偵測臂件動作 ，使扭力感測元件感應相對扭力電氣訊號之狀 態； 第九圖為本發明之較佳應用例圖； (二）圖號說明： -----------神衣------'1T------^ - _ - (請先閲讀背面之注意事項Λ填寫本頁) 經濟部中央標準局負工消費合作社印策 1 扭力感測轉軸 11 接觸端 12 轉向元件 111 絕緣環 13 變形最放大器 131 電阻應變片 132 電阻應變片 14 連結端 15 連結端 16 線槽 17 訊號線规 2 訊號檢出裝置 21 孔洞 22 接觸棒 23 轉向感測元件 24 輸出端 3 絕緣外殻 31 套孑L 4 扭力感測元件 5 扭力偵測臂件 51 彈性元件 52 固定塊 53 臂 54 臂 531 參考元件 541 參考元件 55 開口 A 電動自行車 1 · 扭力感測轉軸 1A 車架 -6 - 本纸乐尺度適用中囷國家標準（CNS ) A4規格（2iOx2^7公釐） 經濟部中央標準局員工消費合作社印製 45 56 8 2 五、發明説明（） 2A 五通管 2A ' 槽孔 3Δ 驅動趙盤 4A 腳踏板 5A 腳踏板 6A 螺检 7A 電嫌 8A 馬達動力控制器 9A 輔助動力馬達 B1 偵測端點 B2 偵測端點 R1 電阻器 R2 電阻器 R3 電阻器 R4 電阻器 R5 電阻器 R6 電阻器 U1 運算放大器 U1 ' 輸出端 VS 電源端 C 調整塊 1C 墊片 2C 調整螺检 〈較佳實施例之敍述〉 首先請參閲第一圖〜第三圖所示，本發明之扭力偵測 器，係包含一扭力感測轉軸1，為扭力變形器（strain g ase )元件構成，可感測機械微量之扭力變化•裝設於一 電動自行車A (請參考第九圖所示）之車架1A中段部位之 五通管2A内，於該扭力感測轉軸1表面設有若干個接觸端 11及一轉向元件12,該接觸端11為導體環繞結合於該扭力 感測轉軸1上，並旦各個接觸端11間則M —絕緣環111來 區隔，該轉向元件12則為磁性元件、紅外線感應器構成， 埋設於該扭力感測轉軸1內部，並且於扭力感測轉軸1內 部，至少設有一變形量放大器13 (如圖四所示），其線路 與扭力感測轉軸1之接觸端11相為連結，以於扭力感測轉 -7 - 本紙乐尺度適用中国國家標準（CMS ) A4規格（2丨0X297公釐） ---1------扣衣，------1T------^ - - - (諳先閲讀背面之注意事^填寫本頁) A7 B7 8 2 五、發明説明（） 軸1受力旋轉時，產生相對之扭力感測電氣訊號經由其中 一接觸端11來輸出，詳細之扭力感測說明，在Μ下文中將 有詳细之說明，容後陳明。 上述之扭力感測轉軸1之兩端分別設有一連結端14及 15,以穿套電動自行車Α之驅動齒盤3Α後，分別連結腳踏 板4A及5A,藉以使該扭力感測轉軸1受腳踏板4A及5A之踩 踏轉動，Μ使該扭力感測轉軸1可直接承受及真實反應該 腳踏板4Α及5Α之踩踏扭力，進一步地獲得電動自行車Α實 際運轉之行車路況。 一訊號檢出裝置2 ,於表面設有若干孔洞21,以透過 螺栓6A穿鎖於該五通管2A下方預設之槽孔2A·中（如圖三 所示），並且，該訊號檢出裝置2設有若干個接觸棒22及 一轉向感測元件23,其中，該接觸棒22略具上、下伸縮彈 性，以自槽孔2A’伸入五通管2A内而接觸於扭力感測轉軸 1之接觸端11, Μ引接扭力感測轉軸1之變形量放大器13 所輸出之扭力感測電氣訊號，並經由一輸出端24連结一電 规7Α輸出至電動自行車Α之馬達動力控制器8Α中（參閱第 九圖所示），Μ供該馬達動力控制器8A作為動力及扭力輸 出之控制參考，而該轉向感測元件23,為HALL 1C、紅外 線發射器、磁簧開關構成，與該扭力感測轉軸1中之轉向 元件12相為對應，Μ於該扭力轉軸1作正轉或逆轉方向蓮 轉時，分別感應不同之轉向電氣訊號，並經由上述之輸出 端24輸出至馬達動力控制器8Α中，Μ提供該馬達控制器8Α 作電動自行車Α蓮轉方向或轉速及車速之判別參考。一絕 一 8 一 本纸伕尺度適用中國國家標準（CNS > Α4規格（210X297公釐） I — I--^-----^------'1τ------^ - , (請先閲讀背面之注意事項丨填寫本J) 經濟部中央標準局貝工消費合作社印裝 經濟部t央標準局員工消費合作社印製 4 5 5 6 8 2 A7 B7 五、發明説明（） 緣外殻3 ,於外部設有若干套孔31，Μ吻對上述訊號檢出 裝置2外部之孔洞21後，透過蛾检6Α穿鎖結合於該訊號檢 出裝置2外部，形成絕緣保護。 請再配合第四圖所示，為上述扭力感測轉軸1中之變 形量放大器13之詳細線路圖，其中，電源VS係透過該接觸 端11而自該馬達動力控制器8Α中引入，換言之，上述之接 觸端11，至少有兩個為電源VS之輸入端，Μ提供整個變形 量放大器13之工作電壓，並且，該變形童放大器13係包括 至少兩個電阻應變Μ 131及132 , Ρ通該扭力感測轉軸1受 力旋轉而產生電阻值之變化，在電氣特性上可分別視同為 一可變電阻器元件，並且，該電阻應變片131及132則與 電阻器R1及R2構成一電橋網路，並再由偵測端點Β1及Β2引 出其偵測電位。上述之變形畺放大器13更至少包括一運算 放大器111，以配合電阻器1?3、1^4、1?5、1^6，瑕成一差動放 大網路，以引接上述電橋網路中之偵測端點Β1及Β2之電位 輸入，並由該運算放大器U1之輸出端U1’，將相對於扭力 變化之電氣訊號經由上述接觸端11其中一者輸出至上述電 動自行車中之馬達動力控制器8Α中。另外，在第四圖中 另標示之轉向感測元件23,所感應獲得之轉向電氣訊號亦 一同被送入上述之馬達動力控制器8A, K使該馬達動力控 制器8A可根據扭力感測電氣訊號及轉向電氣訊號來決定輸 出輔助傳動動力及輸出扭力之大小或車速。 請再參閱第五圖〜第七圖所示，為本發明之扭力偵測 器之另一較佳實施例，其中，與上述第一圖〜第四圖所述 -9- 本紙乐尺度適用中國國家標隼（CNS ) A4規格（2丨0><25>7公釐） .—r 訂 * , I ~^ 線 (#先閲讀背面之注意事項再填寫本頁) A7 B7 455682 五、發明説明（） 之扭力偵測器之差異為該扭力感測轉軸1 ^不為扭力變形器 構成，內部無上述變形量放大器13,但仍保留有接觸端11 、絕緣環111及轉向元件12,並且，在該扭力感測轉軸P 之一側表面横向鑿設有一線槽16,藉以供一訊號線纜17埋 設固定，該訊號線规17之一端則連結至上述扭力感測轉軸 1’之接觸端11,另一端則連結一扭力感測元件4，該扭力 感測元件4為HALL 1C構成，並且，連結固定於上述電動 自行車A之驅動齒盤3/\内面上，故於此實施例中，該扭力 感測轉軸1’之接觸端11之作用為單純之傳導連结電氣訊號 之中繼接點，其所連結之電氣訊號，仍由上述第一圖所示 之訊號檢出裝置2來連结傳送至該電動自行車A之馬達動 力控制器8A。 一扭力偵測臂件5 ,係透過若干螺检6A鎖固連結於該 驅動齒盤3A内面上，於該週緣對應之兩個反向一百八十度 之位置上，分別結合有一彈性元件51,為彈簧或其他等效 具彈力之元件構成，如：壓縮彈簧及扭力彈簧，且該彈性 元件51之末端則連結Μ —固定塊52,該固定塊52則亦固定 於驅動齒盤3Α之內面，使該彈性元件呈反向平行排列之狀 態，以使驅動齒盤3Α啟動時，彤成一阻尼效應，亦即該腳 踏板4Α及5Α在起步踩踏及每一次施力向前踩踏之過程中， 必需先行克服該扭力偵測臂件5之彈性元件51之阻尼彈力 ，方可使該驅動齒盤3Α被帶動運轉，並且在該扭力偵測臂 件5之週緣至少設有一調整塊C及一對臂53、54,該調整 塊C係透過一墊Μ 1C及調整螺检2C检鎖鬆緊度，以微調該 一 1 0 _ 本纸乐又度適用中囡國家標準（CNS ) Α4坑格（2!〇Χ297公釐） ----------1------ΐτ------0 (請先閱讀背面之注意事項ΐ填寫本頁) 經濟部中央標準局員工消費合作社印裝 經濟部中央標準局貝工消费合作社印策 45 56 8 2 A7 B7 五、發明説明（） 彈性元件51之阻尼彈性，且該兩臂53及54末端内面分別設 有一參考元件531及541 ,該參考元件531及541為磁性 元件所構成，並且，在該兩臂53及54間則形成有一開口 55 ，以使上述之扭力感測元件4置於該開口 55之間，藉由該 兩臀53及54末端之參考元件531及541與該扭力感测元件 4間之距離變化，使該扭力感測元件4亦產生相對之感應 電壓訊號變化，作為扭力變化之感應訊號。 請再配合第八圖所示，如第五圖〜第七圖所示本發明 之扭力偵測器之實施例態樣，於實際應用操作上，係藉由 該腳踏板4A及5A起步及每一次向前踩踏之過程中，由於該 扭力偵測臂件5之彈性元件51之彈性阻尼效應，故可實際 反映腳踏板4A及5A之踩踏力量及扭力需求，例如：在電動 自行車A於上坡或起步之過程中，該腳踏板4A及5 A之踩踏 施力力量較大，故使該扭力偵測臂件5中之兩臂53及54末 端之參考元件531及541與扭力感測元件4間之距離變化 加大，換言之，該扭力感測元件4所感應獲得之電壓訊號 變化最亦較高，並經由該扭力感測轉蚰1 ’之接觸端11傳導 至訊號檢出裝置2 ,由訊號檢出裝置2再傅送至電動自行 車A之馬達動力控制器8A,使該馬達動力控制器8A控制輔 助動力馬達9A (請參考第九圖所示），輸出較大之功率及 扭力輔肋電動自行車A起步或上坡蓮轉，使駕駛者於蓮轉 操縱時真正可達到省力及減輕體力負擔之功效。 此外，當電動自行車A處於平坦路面或下坡行駛時， 該腳踏板4A及5A之踩踏施力力量較小或為零（不施力）， -1 1 - 本紙張尺度速用中國國家標皁（CNS ) Α4坑格（2i〇X297公釐） —-----------^------ΐτ------0 - (諳先閔讀背面之注意事項再填寫本頁) 經濟部t夬樣隼局員工消費合作社印«. 4 5 56 82 a? B7 五、發明説明（） 故使該扭力偵測臂件5中之兩臂53及54末端之參考元件53 1及541與扭力感測元件4間之距離變化變小或不變動， 換言之，該扭力感測元件4所感應獲得之電壓訊號變化量 亦較小或為零，並經由該扭力感測轉軸1’之接觸端11傅導 至訊號檢出裝置2 ,由訊號檢出裝置2再傳送至電動自行 車A之馬達動力控制器8A,使該馬達動力控制器8A控制輔 助動力馬達9A,投入較小之功率及扭力以配合電動自行車 A作平坦路面或下坡行駛，或亦可藉由該扭力感測轉軸1’ 中之轉向元件12及該訊號檢出裝置2中之轉向感測元件23 來決定車輔運轉方向及偵測車速之用，使駕駛者於運轉操 縱時可達到省電及確保行車安全之功效。 請再參閲第九圖所示，如上述第一圖〜第四圖及第五 圖〜第八圖所示本發明之扭力偵測器及其實施例，於實際 應用上，係可應用於如第九圖所示之電動自行車A中，而 第九圖所示僅為一方便說明所列舉之應用例態樣，並非拘 限於此，舉凡所有附踏板的電動車輔皆為本發明之範赌， 並且，上述之應用狀態，除了在裝設上簡單方便外，在於 操作上，只要藉由雙腳之自然踩踏腳踏板4A及5A之力童， 即可自動將實際輔助功率及扭力之需求情況與電動自行車 A之實際運轉路況，透過扭力感測轉軸1或扭力偵測臂件 5經該訊號檢出裝置2傳送至馬達動力控制器8A，使該馬 達動力控制器8A依該真正所需之投入功率及扭力，而控制 輔助動力馬達9 A投入適當之功率及扭力輔助電動自行車A 蓮轉，使該電動自行車A無論處於何種路況及行験狀態下 -1 2 - 本纸汝尺度適用中國國家標孪（CNS ) A4規格U丨0X297公釐） I---[h------^------1T------^ (請先閲讀背面之注意事嗲.彳填寫本I ) _ 4 5 5 6 8 2 A7 B7 五、發明説明（） 皆可獲得良好及適當之輔助動力投入，對於駕駛者而言可 達事半功倍及減輕體力負擔之效，對於電動自行車A而言 ,則使該電力及輔助動力之輸出更具有效率，並可較習知 之電動自行車省電，可達到人體工學設計中人車—體之操 作目的，實乃為一極具產業利用價值之發明。 本發明之發明精神，係在於使用最為簡捷之扭力偵測 結構，Μ人體最為自然之雙腳踩踏力量輸入實際之電動自 行車運轉之輔助功率及扭力需求命令，使電動自行車可相 對輸出最為適合人體踩踏及符合實際路況之輔助功率及扭 力，而使該電動自行車在操作上可更為順暢，並達到人車 一體之境界。 Μ上第一圖〜第九圖所示本發明之扭力偵測器，其中 所揭示之相關說明及圖式，係為便於說明技術內容及技術 手段，所列舉之較佳實施例之一隅，並不因此限制其範摘 ，並且，舉凡一切針對本發明之結構及技術手段之细部修 飾及變更，或者是元件之等效置換、替代，當不脫本發明 之發明精神及範赌，其範園將由以下之申請專利範圍來界 定之。 I ^^衣 訂 線 (許先閲讀背面之注意事項逋填寫本頁) 經濟部中央標準局貝工消費合作社印製 — 13 — 本纸恢尺度適用中国國家標準（CNS ) Α4現格（2ΙΟΧ297公釐）A7 B7 45 56 8 2 V. Description of the invention (Field of invention) The present invention relates to a torque detector, especially to an electric rib-assisted bicycle auxiliary, and can detect the force on the pedal, The electrical reference signal for turning. <Background of the Invention and Previous Techniques> According to this, electric bicycles are one of the most popular transportation mobility tools, especially under the environmental trend where environmental protection concepts are generally deeply rooted. Electric bicycles have gradually replaced bicycles as future lightweight mobility tools. Mainstream. However, in the structure of electric bicycles, the main source of power is an auxiliary power source such as an electric motor. Therefore, it is necessary to properly control the rotation of this auxiliary transmission power source in order for the electric bicycle to run and operate. In the process of operation, the effect of integration of people and vehicles is achieved, otherwise only the increase of power and energy consumption and the safety of riding operations will be increased. However, in the general traditional electric bicycle structure, the simple auxiliary power source control method is to install the electric auxiliary transmission power source (such as a motor) on the front or rear wheel of the bicycle, and the electric The on or off of the switch is used as a control device for starting the electric auxiliary power source. The auxiliary power source is activated by the rider's finger press on the hall, and the auxiliary power of the full power is input through the auxiliary transmission power source. Therefore, the output power of the auxiliary power source has not been properly controlled and adjusted, and it is easy to cause unnecessary waste of power. For example, for example, when the electric bicycle is started, the auxiliary rib drive power source must input a large torque to make the auxiliary electric bicycle turn in a row, or when the downhill or flat road is traveling, the auxiliary power The source must be completely cut off without providing auxiliary rib power or investing in a small auxiliary; install ^ ------- order -----; line •, (Please read the precautions on the back before filling this page ) Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs t The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0X 2 ^ 7 mm) Printed by the Male Workers Consumer Cooperative of the Central Standards Bureau of the Ministry of Economics 4 5 56 82 A7 B7 V. Description of the invention () Auxiliary power. In addition, the above-mentioned conventional electric bicycle auxiliary power output torque control, because the input control signal is a simple on and off type, and the torque of the input auxiliary power is also the largest, and it is not possible to automatically view the electric bicycle. In addition to the actual pedaling state and speed for adjustment and assistance, in addition to easily causing unnecessary waste of electricity and manpower, during the driving process of the electric ribbed vehicle, it is also easy to generate auxiliary power instantaneously when it is turned on or off, such as Starting and stopping, because the torque of the auxiliary transmission power from the momentary input changes too quickly, the electric assisted vehicle can produce a state of shaking or vibration instability, and the electric assisted vehicle cannot produce the effect of a person-vehicle integration. Furthermore, there may be improved ones that use the structure and operation method of the fueling handle to control the auxiliary power input of the auxiliary transmission power source in the electric bicycle, although it can be slightly more controllable than the conventional M switch M in the control mode. Improve the problem of auxiliary power and torque input. However, in order to operate the input of the auxiliary transmission power source by one-handed refueling method, it is necessary to determine the amount of input of the auxiliary transmission power source by turning the refueling handle with the driver's visual state and experience. Therefore, it is also impossible to fully achieve the proper power and torque for electric bicycles depending on road conditions and actual torque requirements. Especially when driving for a long time, it is easy to make the hands muscles jump tightly or the sudden situation is out of control. If the refueling handle is rotated to the maximum, it cannot be returned immediately, resulting in uncontrollable operation and accidents. In addition, in terms of related prior patents and technical documents, such as Taiwanese Patent Application No. 84215538 "Pedal-actuated motor device", it reveals a power input control method for auxiliary power motors, and its shortcomings are as described above. -3-The size of this paper is applicable to China National Standard (CNS) Α4 specification (210X297 mm) --- ^ ------------- 11 ------ Φ.... < Please read the precautions on the back-S to complete this page) 455682 A7 B7 V. Description of the invention () Electric bicycles controlled by the MV fuel-handle mode are generally not able to achieve proper output assistance depending on road conditions and actual torque requirements. The effect of power; In addition, in US Patent No. 5,900,703, it is stated that it is on the pedal pedal; t Fu Dongzhi is equipped with a number of magnets, and the corresponding position of the frame is equipped with a magnetic meal switch. Detect structure, use M to control start (on) auxiliary power or cut off (off) auxiliary transmission power according to the induction signal between the magnetic reed on the gear and the reed switch on the frame, but its shortcomings are Such as the auxiliary Fu power source, such as the motor output power is uniform, can not The actual road conditions require power of different needs. Therefore, in the state that high power and high power are not needed, but auxiliary transmission power is still required, it is necessary to frequently use mechanical brakes to match and control. Relatively, it is more ineffective. The loss of electricity causes the travel range of the electric bicycle to be reduced and the efficiency of assisting the power of the bicycle to be deteriorated. <Objective and Summary of the Invention> Therefore, the main object of the present invention is to provide a torque detector that directly detects the actual pedaling force of a pedal by a torque gage to determine the assist of an electric bicycle. The input power and torque of the power motor can truly reflect the actual road conditions and the pedaling torque requirements of the driver. The input of auxiliary power and torque of an appropriate size can make the electric bicycle run more smoothly and make the auxiliary transmission power more powerful. Efficiency * Another object of the present invention is to provide a torque detector that controls the power input of the auxiliary transmission of an electric bicycle by using the pedaling torque required by the pedal, so that the electric bicycle can be completely driven by the pedal during the driving process. The power is used to control the output of the auxiliary transmission power, which will not cause tension and runaway and cause accidents. This paper size is in accordance with China National Soap Soap (CNS) A4 specification (210X29? Mm > --- ^ ------- batch Clothing ^ ------ II ------ 0 (Please read the note on the back first to complete this page) Central Standards Bureau of the Ministry of Economic Affairs Printed by the Central Bureau of Standards, Shellfish Consumer Cooperatives 45 56 8 2 A7 B7 V. Description of the invention () It can ensure the driving safety of electric bicycles. In order to achieve the above purpose, the torque detector of the present invention uses a deformation sensing The rotating shaft is installed in the five-way pipe and the sprocket of the middle frame of the electric bicycle. The two ends of the rotating shaft are respectively connected to the pedestal of the pedestal. Signal connection end and steering element, and the connection end is connected to a variable-amplifier. The deformation amplifier provides an electrical signal output of the torque deformation sensing relative to the amount of torque deformation of the rotating shaft under force. Signal measurement vehicle speed, M, and at least one signal detection device, which is set on the five-way pipe, has a plurality of contact rods and a steering sensing element, and M extends into the five-way pipe and contacts the signal of the deformation sensing shaft. The corresponding position of the connecting end and the steering element, by detecting the torque signal of the pedal and detecting the electrical signal and the direction of rotation signal to the motor power controller of the electric bicycle, and the auxiliary control of the electric bicycle The power motor outputs appropriate power and torque, or limits the maximum speed. The other objects and detailed structure of the present invention will be made clearer by the following detailed description. At the same time, referring to the attached drawings, the present invention can be made. The technical content is further revealed and clear, of which: (1) Schematic part powder: the first figure is a three-dimensional exploded structure diagram of the present invention; the second figure is a three-dimensional exploded structure diagram of a signal detection device; the third picture is a An enlarged view of a partial cross-section, showing the contact rods and steering sensing elements of the signal detection device in the five-way tube and the contact ends of the torque sensing shaft and the corresponding steering elements; the fourth figure shows the amount of color change in the torque sensing shaft Amplifier circuit diagram; 1-5 paper size applies Chinese National Standard (CNS) A4 (210X297 mm). Binding line (read the notes on the back first and fill in this page separately) A7 45 56 8 2 _B7_ V. Description of the Invention (5) The fifth diagram is a diagram of another preferred embodiment of the present invention; the sixth diagram is a partial structure diagram of the fifth diagram, showing the structure between the torque detecting praise piece and the torque sensing element; The figure is a three-dimensional exploded structure view of the sixth figure; the eighth figure is a front view of the sixth figure, showing the state of the torque detection arm, which makes the torque sensing element sense the relative torque electrical signal; the ninth figure is the invention Illustration of preferred application; (2) Description of drawing number: ----------- Shenyi ---- '1T ------ ^-_-(Please read the (Notes ΛFill in this page) The policy of the Central Laboratories of the Ministry of Economic Affairs, Consumer Cooperatives, India 1 Torque sensing shaft 11 Contact end 12 Steering element 111 Insulating ring 13 Deformation amplifier 131 Resistance strain gauge 132 Resistance strain gauge 14 Connection end 15 Connection end 16 Wire trunking 17 Signal wire gauge 2 Signal detection device 21 Hole 22 Contact bar 23 Steering sensing element 24 Output terminal 3 Insulated housing 31 Set 孑 L 4 Torque sensing element 5 Torque detection arm piece 51 Elastic element 52 Fixing block 53 Arm 54 Arm 531 Reference Element 541 Reference Element 55 Opening A Electric Bicycle 1 · Torque Sensing Shaft 1A Frame-6-This paper music scale is applicable to the Chinese National Standard (CNS) A4 specification (2iOx2 ^ 7 mm) Ministry of Economic Affairs Printed by the Consumer Standards Cooperative of the Central Bureau of Standards Control 45 56 8 2 V. Description of the invention () 2A Five-way pipe 2A 'Slot 3Δ Drive Zhao disc 4A Foot pedal 5A Foot pedal 6A Screw inspection 7A Electric suspect 8A Motor power controller 9A Auxiliary power motor B1 Detection end Point B2 Detection endpoint R1 Resistor R2 Resistor R3 Resistor R4 Resistor R5 Resistor R6 Resistor U1 Operational amplifier U1 'Output end VS Power end C Adjustment block 1C Shim 2C Adjustment screw check (the preferred embodiment Description> First, please refer to the first to third figures. The torque detector of the present invention includes a torque sensing rotating shaft 1 and is composed of a torque gase (strain g ase) element. Torque change • Installed in the five-way pipe 2A in the middle part of the frame 1A of an electric bicycle A (see Figure 9), a number of contact ends 11 and 1 are provided on the surface of the torque-sensing rotating shaft 1. Steering element 12, the contact end 11 is a conductor surrounding the torque sensing rotating shaft 1, and each contact end 11 is separated by an M-insulating ring 111. The steering element 12 is a magnetic element and an infrared sensor. Composition, buried in the twist Sensing the inside of the rotating shaft 1 and at least one deformation amount amplifier 13 (as shown in FIG. 4) inside the torque sensing rotating shaft 1. The circuit is connected with the contact end 11 of the torque sensing rotating shaft 1 for the torque sense. Measure and turn -7-This paper music scale is applicable to Chinese National Standard (CMS) A4 specification (2 丨 0X297 mm) --- 1 ------ buttoning, ----- 1T ------ ^---(谙 Read the notes on the back ^ Fill this page first) A7 B7 8 2 V. Description of the invention () When the shaft 1 is rotated by force, the relative torque sensing electrical signal is output through one of the contact ends 11 For detailed torque sensing instructions, there will be detailed descriptions in the following paragraphs of M. The two ends of the above-mentioned torque-sensing rotating shaft 1 are respectively provided with connecting ends 14 and 15 to pass through the driving gear 3A of the electric bicycle A, and then are connected to the pedals 4A and 5A, respectively, so that the torque-sensing rotating shaft 1 receives The pedaling rotation of the pedals 4A and 5A enables the torque sensing shaft 1 to directly withstand and truly reflect the pedaling torque of the pedals 4A and 5A to further obtain the actual driving road conditions of the electric bicycle A. A signal detection device 2 is provided with a plurality of holes 21 on the surface to be screwed into the preset slot 2A · in the bottom of the five-way pipe 2A through the bolt 6A (as shown in FIG. 3), and the signal is detected The device 2 is provided with a plurality of contact rods 22 and a steering sensing element 23. Among them, the contact rod 22 has a slightly upper and lower telescopic elasticity, and extends from the slot 2A ′ into the five-way tube 2A to contact the torque sensing. The contact end 11 of the rotating shaft 1 is connected to the torque sensing electric signal output by the torque sensor 13 of the deformation amount amplifier 13 of the rotating shaft 1 and connected to an electric gauge 7A through an output terminal 24 to output the motor power controller of the electric bicycle A. In 8A (see the ninth figure), M is for the motor power controller 8A as a control reference for power and torque output, and the steering sensing element 23 is composed of HALL 1C, infrared transmitter, and reed switch, and The steering element 12 in the torque sensing shaft 1 corresponds to each other. When the torque shaft 1 rotates in the forward or reverse direction, different steering electrical signals are respectively sensed and output to the motor power through the output terminal 24 described above. In the controller 8A, M provides the motor 8Α system device for electric bicycles Α Lin rotating direction or determination of the reference speed and the vehicle speed. One must one 8 The size of a paper stack applies to the Chinese national standard (CNS > Α4 specification (210X297 mm) I — I-^ ----- ^ ------ '1τ ------ ^-, (Please read the notes on the back first 丨 fill out this J) Printed by the Central Standards Bureau of the Ministry of Economic Affairs, printed by the Shellfish Consumer Cooperatives, printed by the Ministry of Economic Affairs, and printed by the Central Consumers ’Cooperatives, 4 5 5 6 8 2 A7 B7 V. Description of the invention () The edge housing 3 is provided with a plurality of sets of holes 31 on the outside. After the M kisses the holes 21 on the outside of the signal detection device 2, it is locked and connected to the outside of the signal detection device 2 through the moth detection 6A to form insulation protection. Please cooperate with the fourth figure to show the detailed circuit diagram of the deformation amount amplifier 13 in the torque-sensing rotating shaft 1 described above, in which the power source VS is introduced from the motor power controller 8A through the contact terminal 11, in other words At least two of the above-mentioned contact terminals 11 are input terminals of the power source VS, and M provides the operating voltage of the entire deformation amount amplifier 13, and the deformed child amplifier 13 includes at least two resistance strains M 131 and 132. This torsional force sensing changes the resistance value of the rotating shaft 1 and changes the resistance value. It can be regarded as a variable resistor element respectively, and the resistance strain gauges 131 and 132 form a bridge network with the resistors R1 and R2, and the detection ends are detected by the detection terminals B1 and B2. The above-mentioned modified chirp amplifier 13 further includes at least an operational amplifier 111 to cooperate with the resistors 1? 3, 1 ^ 4, 1? 5, 1 ^ 6 to form a differential amplifier network to lead the above bridge network. The potential inputs of the detection terminals B1 and B2 in the road are outputted from the output terminal U1 'of the operational amplifier U1 to the electric signal of the torque change via one of the contact terminals 11 to the motor in the electric bicycle. In the power controller 8A, in addition, the steering sensing element 23 labeled in the fourth figure, the steering electrical signals obtained by the induction are also sent to the above-mentioned motor power controller 8A, and K makes the motor power controller 8A Can determine the output of auxiliary transmission power and output torque or vehicle speed according to the torque sensing electrical signal and steering electrical signal. Please refer to Figures 5 to 7 again, which is another comparison of the torque detector of the present invention. Best embodiment, which , As described in the first to fourth figures above. 9- This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0 > < 25 > 7mm). —R Order *, I ~ ^ (#Read the precautions on the back before filling this page) A7 B7 455682 5. The difference between the torque detector of the invention () is the torque sensing shaft 1 ^ It is not a torque deformer, and there is no internal deformation The amplifier 13, but still retains the contact end 11, the insulating ring 111, and the steering element 12, and a wire groove 16 is laterally chiseled on one side surface of the torque sensing rotation shaft P, so that a signal cable 17 is buried and fixed. One end of the signal wire gauge 17 is connected to the contact end 11 of the torque sensing rotating shaft 1 ', and the other end is connected to a torque sensing element 4. The torque sensing element 4 is composed of HALL 1C, and is connected and fixed to the above. The driving gear 3 / \ inside of electric bicycle A, so in this embodiment, the function of the contact end 11 of the torque-sensing rotating shaft 1 'is simply a relay contact that conducts electrical signals, which is connected to The electrical signals are still from the signal detection device 2 shown in the first figure above. Junction transmitted to the motor controller 8A dynamic force A of the electric bicycle. A torsion detecting arm piece 5 is locked and connected to the inner surface of the driving toothed disc 3A through a plurality of screw inspections 6A, and is respectively combined with two elastic elements 51 at two positions 180 degrees opposite to each other on the periphery. Is a spring or other equivalent elastic element, such as a compression spring and a torsion spring, and the end of the elastic element 51 is connected to the M-fixing block 52, and the fixing block 52 is also fixed in the driving gear 3A Surface, so that the elastic elements are arranged in an anti-parallel arrangement, so that when the driving gear 3A starts, a damping effect is achieved, that is, the process of the pedals 4A and 5Α stepping on at the start and each step of applying force forward In order to drive the driving gear 3A, it is necessary to overcome the damping elastic force of the elastic element 51 of the torque detecting arm member 5, and at least one adjusting block C and A pair of arms 53 and 54. The adjustment block C is used to check the tightness of the lock through a pad M 1C and adjust the screw check 2C to fine-tune the 1 0 _ This paper music is also applicable to the China National Standard (CNS) Α4 pit (2! 〇 × 297 mm) ---------- 1 ------ ΐτ ------ 0 ( Read the notes on the back first and fill in this page) Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Printed by the Central Standards Bureau of the Ministry of Economic Affairs of the Central Bureau of Standards of the Ministry of Economic Affairs 45 56 8 2 A7 B7 V. Description of the invention In addition, a reference element 531 and 541 are respectively provided on the inner surfaces of the ends of the two arms 53 and 54. The reference elements 531 and 541 are made of magnetic elements, and an opening 55 is formed between the two arms 53 and 54 to enable the above. The torque sensing element 4 is placed between the openings 55, and the distance between the reference elements 531 and 541 at the ends of the two hips 53 and 54 and the torque sensing element 4 changes, so that the torque sensing element 4 is also generated. The relative change in the induced voltage signal is used as the induced signal for the change in torque. Please cooperate with the eighth diagram, as shown in the fifth to seventh diagrams of the embodiment of the torque detector of the present invention. In practical application, the pedals 4A and 5A are used to start and During each stepping forward, due to the elastic damping effect of the elastic element 51 of the torque detecting arm member 5, it can actually reflect the pedaling force and torque demand of the pedals 4A and 5A, for example: During the uphill or starting process, the pedaling force of the pedals 4A and 5 A is large, so the reference elements 531 and 541 and the torque sense at the ends of the two arms 53 and 54 in the torque detecting arm member 5 The distance between the measuring elements 4 increases, in other words, the voltage signal obtained by the torque sensing element 4 has the highest change, and is transmitted to the signal detection device through the contact end 11 of the torque sensing switch 1 ′. 2.The signal detection device 2 sends it to the motor power controller 8A of the electric bicycle A, so that the motor power controller 8A controls the auxiliary power motor 9A (please refer to the ninth figure), and outputs a larger power and Torque auxiliary rib electric bicycle A starts or turns uphill, Lotus driver when to turn steering effort can achieve real effectiveness and reduce the physical burden of. In addition, when electric bicycle A is on a flat road or driving downhill, the pedaling force of the pedals 4A and 5A is small or zero (no force), -1 1-This paper standard uses the Chinese national standard. Soap (CNS) Α4 pits (2i〇X297 mm) ------------- ^ ------ ΐτ ------ 0-(谙 Xian Min read the note on the back Please fill in this page again) Printed by the Consumers' Cooperatives of the Ministry of Economic Affairs of the Ministry of Economic Affairs «. 4 5 56 82 a? B7 V. Description of the invention () Therefore, the two ends of the arms 53 and 54 of the torque detection arm member 5 The change in the distance between the reference element 53 1 and 541 and the torque sensing element 4 becomes smaller or unchanged, in other words, the amount of change in the voltage signal obtained by the torque sensing element 4 is also small or zero, and passes through the torque sensing The contact end 11 of the rotating shaft 1 'is guided to the signal detection device 2, and the signal detection device 2 is then transmitted to the motor power controller 8A of the electric bicycle A, so that the motor power controller 8A controls the auxiliary power motor 9A, and is turned on. Small power and torque to match electric bicycle A for flat road or downhill driving, or the steering element in the rotating shaft 1 'can be sensed by this torque The signal detection means 12 and 2 in the steering sensing element 23 to determine the vehicle running direction and the auxiliary speed detection purposes, so that the driver can be manipulated during operation to conserve power and ensure the effectiveness of driving safety. Please refer to the ninth figure again. As shown in the above first to fourth figures and fifth to eighth figures, the torque detector of the present invention and its embodiment are applicable to practical applications. As shown in the ninth figure, electric bicycle A is shown in the ninth figure, but it is only an example of a convenient application. It is not limited to this. For example, all electric bicycles with pedals are examples of the invention. Gambling. In addition to the simple and convenient installation, the above-mentioned application state is in operation. As long as the two children naturally step on the pedals 4A and 5A, the actual auxiliary power and torque can be automatically converted. The demand situation and the actual running road conditions of electric bicycle A are transmitted to the motor power controller 8A through the signal detection device 2 through the torque sensing shaft 1 or the torque detection arm piece 5, so that the motor power controller 8A is in accordance with what it really is The required input power and torque are controlled, and the auxiliary power motor 9 A is controlled to input the appropriate power and torque to assist the electric bicycle A to make a turn, so that the electric bicycle A is no matter what road conditions and driving conditions -1 2-paper scale Applicable in China House standard twin (CNS) A4 specification U 丨 0X297 mm) I --- [h ------ ^ ------ 1T ------ ^ (Please read the notes on the back first 嗲. 彳 Fill in this I) _ 4 5 5 6 8 2 A7 B7 V. Description of the invention () All can get good and appropriate auxiliary power input, which can achieve twice the result with less effort and reduce the physical burden for the driver, and for electric bicycles In terms of A, the output of the electric power and auxiliary power is more efficient, and it can save power than the conventional electric bicycle, which can achieve the purpose of human-car-body operation in ergonomic design, which is really a very industrial use Invention of value. The inventive spirit of the present invention is to use the most simple torque detection structure, the most natural pedaling force of the human body to input the auxiliary power and torque demand command of the actual electric bicycle operation, so that the electric bicycle can relatively output the most suitable for human pedaling. And the auxiliary power and torque according to the actual road conditions make the operation of the electric bicycle smoother and reach the realm of human and vehicle integration. The torque detector of the present invention shown in the first to ninth figures above, the related descriptions and drawings disclosed therein are one of the preferred embodiments listed for the convenience of describing the technical content and technical means, and It does not limit its scope, and all modifications and changes to the structure and technical means of the present invention, or equivalent replacements and replacements of components, without departing from the spirit and scope of the invention, It will be defined by the scope of patent application below. I ^^ Thread (read the precautions on the back of this page and fill in this page) Printed by the Sheller Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs — 13 — This paper is restored to the standard of China National Standards (CNS) Α4 (2ΙΟχ297) %)