201228866 六、發明說明： 【發明所屬之技術領域】 本發明.主要係揭示一種液壓傳動系統，尤其是指一種 具煞車能量回收之液壓傳動系統。 【先前技術】201228866 VI. Description of the Invention: [Technical Field] The present invention mainly discloses a hydraulic transmission system, and more particularly to a hydraulic transmission system with brake energy recovery. [Prior Art]
隨著氣候變遷的影響，近年來全球環保意識抬頭，節 能減碳的議題順應而生。其巾，節能減碳的訴求在於必^ 有效降低能源消耗及廢棄減。以車_產業而言，使用者 不希望隨著節能減碳而降低原本的車她能，使用者希望 車_速度祕賴，而承載力越高越好，尤其以運輪工 具而言’更需要具備這種良好的效率。例如—般常見的巴 士、貨車與輯料重型運輸工具，其 式而容易產生大量廢氣以及空耗能量。 丁雙板 目前常見的車減過嶋 題 傳:機構f車輪，提升車輛的動能達到加速的目的:: 而車^料將會直接軸能馳掉_絲能散失。 因此，本發明想排除或至少減輕先前技術所遭遇的問 【發明内容】 的缺失 解決之技術問題係在於針對現有技術存在 種具煞車能量回收之液壓傳動系統。 柄月主錢㈣技射料，_煞料的能量回 201228866 收儲存，並在啟動時再將能量 停止的重型運輸工具（如巴士、 '十對爷頻繁啟動、 因為間歇奸賴式，容以財）’這些車輛 由將煞車能量回收於加速時再藉 耗能及廢氣概_。 冑⑯改善此種車輔的 本發明次要改良的技術手段為，利用煞車能量回收產 生的煞車能儲存再利用，讓 戒減速時，可以利用煞車產生的 厣、：二巧：里達配合而將動力透過液壓運送到該低 =、问金畜塵器，藉由這種循環式的模式回收並再利用油 枓，以達到料耗油及煞車能量时的目的。 ’、的優點和本發明的新穎特性將從以下詳細的 描述與相關的附圖更加顯明。 【實施方式】 —有關本發明所採用之技術、手段及其功效，兹舉一較 佳灵％例並§己合圖式詳述如後，此僅供說明之用，在專利 申請上並不受此種結構之限制。 ^ '、、'圖與圖一’為本發明之具煞車能量回收之液壓 傳，系、、先之*权圖與示意圖。本發明之具煞車能量回收之 動系、先裝《於皁_，而能夠驅動車輛的後輪1，進 。y γ動車輛的則輪2，令車輛能狗行駿。其系統操作流 私為.開始~>向壓預充液壓油—低壓預充液壓油—加速行 駛-煞車儲能—能量回收。 本發明能夠使用於動力機械的煞車，尤其針對常頻繁 201228866 啟動、停止的重型運輸工具（如巴士、貨車及垃圾車），這 ^車，為間歇式行敬模式，容易産生大量廢氣與空耗能 _ nt由將煞車能量时於加料再放出，便能改善此種 車輛的耗能及廢氣排放問題。 該液壓傳動系統包括有—個油壓動力組合單元3、一 個閥控組合單元4、-個液壓驅動組合單元5 一個低壓蓄 廢器6與-個高壓蓄壓器7。該油壓動力組合單元3連通 • ^控組合單元4 ’關独合單元4連通紐壓驅動組 。早7L 5。該低壓蓄壓器6預充氮氣為2大氣壓力（bar)， ^壓^壓器7預充氮氣為12G大氣壓力（bar),該低壓 /、问壓畜壓裔6、7能夠提供不同模式使用，並作為能量轉 ，谈健存及職的媒介。該油壓動力組合單元3與該闕控 、、且5單元4之間設有一個控制閥8。 /同日才芩知圖二，為本發明之具煞車能量回收之液壓傳 H 統之液壓迴路圖。該油壓動力組合單元3能夠産生液 1此，其包括一個幫浦Pi、一個馬達M、一個雙向閥31、 個油箱32。該幫浦P1能夠將動力轉為液壓能，進一步 推動該幫浦P1，促使能源形式轉換為液磨能。 。亥閥控組合單元4包括—個第一控制閥々I、一個苐二 工制閥42、一個第三控制閥43、一個第四控制閥44與一 個流I比例電磁閥45。該第三控制閥43連接該第一控制 遢41與§亥低壓蓄壓器6，該第四控制閥44連接該第二控 制閥42與該高壓蓄壓器7，且該流量比例電磁閥45位於 ΰ亥第—控制閥42與該第四控制閥44之間。 201228866 該液壓驅動組合單元5包括一個飛輪51、一個減速機 構（未見）、一個可變量幫浦P2與一個液壓定量馬達Ml。 該減速機構設在該飛輪51之驅動軸上，藉由該減速機構煞 車時產生的飛輪51的機械能而帶動該可變量幫浦P2，進 一步將低壓蓄壓器6的液壓油送回高壓蓄壓器7儲存液壓 能。當煞車結束時，從該高壓蓄壓器7釋放之液壓油被送 往該液壓定量馬達Ml，產生扭力輔助汽車加速行駛。並藉 由該閥控組合單元4來調控液壓控制迴路達到動力輸出或 是能源回收釋放。該可變量幫浦P2在煞車時將煞車能轉換 成液壓能，使低壓油成為高壓油並儲存到高壓蓄壓器7。 該液壓定量馬達Ml使用該高壓蓄壓器7與該幫浦P1所打 出之高麈油而帶動該飛輪51。該低壓與高壓蓄壓器6、7 之預壓值會影響該飛輪51的煞停時間，進一步影響煞車扭 力。 該液壓傳動系統能夠分為幾個模式：預充液壓油、加 速行駛模式、煞車儲能模式與能量回收模式。 參照圖四，為本發明之液壓傳動系統為高壓預充液壓 油模式之液壓迴路圖。在預充模式中能夠分為兩個階段， 為預充該高壓蓄壓器7與預充該低壓蓄壓器6。首先，預 充該高壓蓄壓器7,打開該雙向閥31，令該幫浦P1連通該 油箱32，並將該油箱32中之液壓油透過該第四控制閥44 控制而填充入該高壓蓄壓器7。 參照圖五，為本發明之液壓傳動系統為低壓預充液壓 油模式之液壓迴路圖。接著預充該低壓蓄壓器6，打開該 201228866 ，令該幫浦P1連通該油箱 屋器6:㈣過該第三控_43控制而填充人該低壓蓄 圏六 之液壓迴略圈壓傳動系統為加速行駛模式 高壓ί行模式中，該低壓蓄壓^與該 Ρ1令二壓，該幫浦?1迴路開啟，該幫浦With the impact of climate change, global environmental awareness has risen in recent years, and the issue of energy saving and carbon reduction has followed. The demand for energy saving and carbon reduction in the towel is to effectively reduce energy consumption and waste reduction. In terms of the car industry, the user does not want to reduce the original car with energy saving and carbon reduction. The user wants the car _ speed secret, and the higher the carrying capacity, the better, especially for the wheel tool. This kind of good efficiency is needed. For example, the most common buses, trucks and heavy-duty transport vehicles are prone to generate large amounts of exhaust gas and energy. Ding Shuangban The current common car reduction 嶋 Problem: The mechanism f wheel, improve the kinetic energy of the vehicle to achieve the purpose of acceleration:: And the car material will directly lose the shaft energy _ wire can be lost. Accordingly, the present invention is intended to obviate or at least alleviate the problems encountered in the prior art. The technical problem of the invention is to provide a hydraulic transmission system with brake energy recovery for the prior art. The stalk main money (four) technical shots, _ 煞 的 energy back to 201228866 to store, and then stop the energy when the start of the heavy transport (such as the bus, 'ten pairs of frequent start, because of intermittent Finance] 'These vehicles are borrowed from the energy and exhaust gas when the vehicle's energy is recovered during acceleration.胄16 The technical means for improving the secondary improvement of the present invention is that the brakes generated by the brake energy recovery can be stored and reused, so that when the bicycle is decelerating, the smash generated by the brake can be utilized: the second skill: the Rida cooperation The power is transmitted hydraulically to the low=, gold duster, and the circulating mode is used to recover and reuse the oil shovel to achieve the purpose of fuel consumption and braking energy. The advantages of the present invention and the novel features of the present invention will be more apparent from the following detailed description. [Embodiment] - Regarding the technology, means and effects of the present invention, a preferred example is exemplified and the detailed description of the figure is as follows. This is for illustrative purposes only, and is not used in patent applications. Limited by this structure. ^ ',, 'Figure and Figure 1' are the hydraulic transmission, system, and prior rights diagrams and schematic diagrams of the vehicle energy recovery. According to the invention, the system for braking energy recovery of the vehicle is first installed in "soap_, and can drive the rear wheel 1 of the vehicle." y γ moves the wheel of the vehicle 2, so that the vehicle can run the dog. The system operation flow is private. Start ~> pre-charge hydraulic oil to the pressure - low pressure pre-charged hydraulic oil - accelerate driving - braking energy storage - energy recovery. The invention can be used for brakes of power machinery, especially for heavy-duty vehicles (such as buses, trucks and garbage trucks) that are frequently started and stopped at 201228866. This type of vehicle is a batch-type mode, which is easy to generate a large amount of exhaust gas and air consumption. _ nt can improve the energy consumption and exhaust emissions of such vehicles by releasing the energy from the brakes. The hydraulic transmission system includes a hydraulic power combination unit 3, a valve control combination unit 4, a hydraulic drive combination unit 5, a low pressure accumulator 6 and a high pressure accumulator 7. The hydraulic power combination unit 3 is connected to the control unit 4'. The closed unit 4 is connected to the line pressure driving group. Early 7L 5. The low-pressure accumulator 6 is pre-charged with nitrogen at 2 atmospheres (bar), and the pressure-pressor 7 is pre-charged with nitrogen for 12 g atmospheric pressure (bar), which can provide different modes. Use, and as energy transfer, talk about the medium of health and work. The hydraulic power combination unit 3 is provided with a control valve 8 between the unit 5 and the unit. On the same day, we will know Figure 2, which is the hydraulic circuit diagram of the hydraulic transmission system with brake energy recovery. The hydraulic power combination unit 3 is capable of generating a liquid, which includes a pump Pi, a motor M, a two-way valve 31, and a fuel tank 32. The pump P1 can convert the power into hydraulic energy, further pushing the pump P1 and converting the energy form into liquid grinding energy. . The valve control unit 4 includes a first control valve 々I, a second valve 42, a third control valve 43, a fourth control valve 44 and a flow I proportional solenoid valve 45. The third control valve 43 is connected to the first control port 41 and the low pressure accumulator 6, the fourth control valve 44 is connected to the second control valve 42 and the high pressure accumulator 7, and the flow proportional solenoid valve 45 Located between the ΰ海第- control valve 42 and the fourth control valve 44. 201228866 The hydraulic drive combination unit 5 comprises a flywheel 51, a reduction mechanism (not seen), a variable displacement pump P2 and a hydraulic quantitative motor M1. The speed reduction mechanism is disposed on the drive shaft of the flywheel 51, and the variable energy pump P2 is driven by the mechanical energy of the flywheel 51 generated when the speed reduction mechanism is braked, and the hydraulic oil of the low pressure accumulator 6 is further sent back to the high pressure storage. The pressure device 7 stores hydraulic energy. When the brake is over, the hydraulic oil released from the high pressure accumulator 7 is sent to the hydraulic quantitative motor M1 to generate a torque assisting the vehicle to accelerate. The valve control combination unit 4 is used to regulate the hydraulic control circuit to achieve power output or energy recovery release. The variable pump P2 converts the brake energy into hydraulic energy when the vehicle is braked, so that the low pressure oil becomes high pressure oil and is stored in the high pressure accumulator 7. The hydraulic metering motor M1 drives the flywheel 51 using the high pressure accumulator 7 and the high enthalpy of the pump P1. The preloading values of the low pressure and high pressure accumulators 6, 7 affect the stopping time of the flywheel 51, further affecting the braking torque. The hydraulic drive system can be divided into several modes: pre-charged hydraulic oil, acceleration mode, brake energy storage mode and energy recovery mode. Referring to Figure 4, the hydraulic transmission system of the present invention is a hydraulic circuit diagram of a high pressure pre-charged hydraulic oil mode. In the pre-charging mode, it can be divided into two stages, that is, pre-charging the high-pressure accumulator 7 and pre-charging the low-pressure accumulator 6. First, the high pressure accumulator 7 is pre-charged, the two-way valve 31 is opened, the pump P1 is connected to the oil tank 32, and the hydraulic oil in the oil tank 32 is controlled by the fourth control valve 44 to be filled into the high pressure storage. Pressure vessel 7. Referring to Figure 5, the hydraulic transmission system of the present invention is a hydraulic circuit diagram of a low pressure precharge hydraulic oil mode. Then, the low-pressure accumulator 6 is pre-charged, and the 201228866 is opened to connect the pump P1 to the fuel tank house 6: (4) the hydraulic control loop of the low-pressure accumulator 6 is filled by the third control _43 control The system is in the acceleration driving mode high pressure mode, the low pressure accumulating pressure ^ and the Ρ 1 command two pressure, the pump ? 1 circuit is opened, the pump
閥42並電磁閥45且經過該第二控制 由第-二;广 完成加速的動作，液壓油再經 弟一控制閥42通過該控制閥8而回到該幫浦ρι。 之液為本發明讀壓傳動㈣為料儲能模式 在煞車儲能模式中，該液壓定量馬達Μ 排里降到夺，此時該可變量幫浦p2開始作動，該幫浦Μ =路關閉,。接著低壓油從該低壓錢器6通過該第一控制 =4!而經過該可變量幫射2之減速機構煞車而使低塵油 此源轉換成高壓油，並送到該高壓蓄壓器7儲存。 、參照圖A，為本發明之液壓傳㈣_能量回收模式 2壓迴路圖。在能量回收模式巾，該液壓元件控制使該 可交I幫浦P2關閉，而該液壓定量馬達M1之排量則透過 速及速度轉換來控制，且該尚壓蓄壓器7迴路打開，高 I油通過该第四控制閥44、該流量比例電磁閥45、該第二 控制閥42而傳到該液壓定量馬達…並作動，而低壓油經 迴路回到該低壓蓄壓器6中儲存，以此循環並達到回收能 源並再利用而減少耗油。 本發明利用煞車能量回收產生的煞車能儲存再利用， 201228866 寺可以利用煞車產生的動力與該液壓定量馬達Ml ，合=將動力透過液壓運送到該低壓、高壓蓄壓器6、7， 糟由讀猶環式的模式回收並再利用油料，以達到 油及煞車能量回收的目的。 就以上所述可以歸納出本發明具有以下之優點·· 1.=明『具煞車能量回收之液㈣動系統』，利用煞 日寸的π里回收儲存，並在啟動時再將 :常頻繁啟動、停止的重型運輸工具(如巴士、貨車=+ 々些相為間歇式行駛模式，容易産生大量廢氣盘空 “’藉由將煞車能量时於加速時再 此種車輛_能及廢氣排放f摘。 煞^ ί發明『具煞車能量时之液，其利用 二月b里回收產生的煞車能健存再利用，讓減速時，可以 液=車產生的動力與該液壓定量馬達配合而將動力透過 回、高遷蓄虔器，藉由這種猶環式的模式 =收並再彻_，料卿省耗油及鱗能量回收的目 白勺。 惟上所述者，僅為本發明之祕實施例 實施之範圍，故舉凡數值之變更或等效元 ^之置換，或依本發”請專觀_叙均㈣化與修 ，皆應仍屬本發明專利涵蓋之範疇。 〃、 圖式簡單說明】 圖 .為本發明之具煞車能量时之液壓傳動系 統之流程 201228866 圖。 圖二··為本發明之具煞車能量回收之液壓傳動系統之示意 圖。 圖三：為本發明之具煞車能量回收之液壓傳動系統之液壓 迴路圖。 圖四：為本發明之液壓傳動系統為高壓預充液壓油模式之 液壓迴路圖。 圖五：為本發明之液壓傳動系統為低壓預充液壓油模式之 液壓迴路圖。 圖六，為本發明之液壓傳動系統為加速行駛模式之液壓迴 路圖。 圖七：為本發明之液壓傳動系統為煞車儲能模式之液壓迴 路圖。 圖八：為本發明之液壓傳動系統為能量回收模式之液壓迴 路圖。 【主要元件符號說明】 1 後輪 2 前輪 3 油壓動力組合單元 Ρ1 幫浦 Μ 馬達 31 雙向閥 32 油箱 4 閥控組合單元 41 第一控制閥 42 第二控制閥 43 第三控制閥 44 第四控制閥 45 流量比例電磁閥 201228866 5 液壓驅動組合單元 51 飛輪 P2 可變量幫浦 Ml 液壓定量馬達 6 低壓蓄壓器 7 高壓蓄壓器 8 控制閥The valve 42 and the solenoid valve 45 are subjected to the second control to complete the acceleration operation, and the hydraulic oil is returned to the pump ρ through the control valve 8 via the control valve 42. The liquid is the reading pressure transmission of the invention (4), and the energy storage mode is in the energy storage mode of the brake, and the hydraulic quantitative motor is lowered into the row, and the variable pump p2 starts to operate, and the pump is closed. ,. Then, the low-pressure oil passes from the low-pressure money machine 6 through the first control=4! and the speed reduction mechanism of the variable-capacity 2 brakes to convert the low-dust oil source into high-pressure oil, and sends it to the high-pressure accumulator 7 Store. Referring to Figure A, it is a hydraulic transmission (four)_energy recovery mode 2 pressure circuit diagram of the present invention. In the energy recovery mode towel, the hydraulic component control closes the distributable I pump P2, and the displacement of the hydraulic quantitative motor M1 is controlled by speed and speed conversion, and the pressure accumulator 7 circuit is opened, high The I oil is transmitted to the hydraulic quantitative motor through the fourth control valve 44, the flow proportional solenoid valve 45, and the second control valve 42, and the low pressure oil is returned to the low pressure accumulator 6 through the circuit. This cycle and achieve energy recovery and reuse to reduce fuel consumption. The utility model can utilize the brake generated by the brake energy recovery to be stored and reused, and the 201228866 temple can utilize the power generated by the brake and the hydraulic quantitative motor M1, and the power is transmitted to the low pressure and high pressure accumulators 6, 7 through the hydraulic pressure. Read the helium ring mode to recover and reuse the oil to achieve the purpose of oil and brake energy recovery. As far as the above is concerned, the present invention can be summarized as follows: 1. = "The liquid (four) moving system with the energy recovery of the vehicle" is used, and the storage is recovered by using the π mile of the day, and at the time of starting: Heavy-duty vehicles that start and stop (such as buses and trucks = + these are intermittent driving modes, which are prone to generate a large amount of exhaust air) "by re-accelerating the vehicle when the vehicle energy is being accelerated" 。^ ίInvented the liquid with the energy of the vehicle, which can be used and recovered by the recovery of the brakes in February b, so that when the vehicle is decelerating, the power generated by the vehicle can be combined with the hydraulic quantitative motor to drive the power. Through the return and high-loading of the sputum, through this mode of circumstance = reconciliation and re-construction, the purpose of the fuel consumption and scale energy recovery of the Qing Dynasty is only the secret of the present invention. The scope of the implementation of the embodiments, so any change in the value or replacement of the equivalent element, or in accordance with the present invention, should be subject to the scope of the invention patent. Brief description] Figure. When the vehicle is powered by the vehicle Flow chart of hydraulic transmission system 201228866 Fig. 2 is a schematic diagram of the hydraulic transmission system with brake energy recovery of the present invention. Fig. 3 is a hydraulic circuit diagram of the hydraulic transmission system with brake energy recovery of the present invention. The hydraulic transmission system of the present invention is a hydraulic circuit diagram of a high pressure pre-charged hydraulic oil mode. Fig. 5 is a hydraulic circuit diagram of a hydraulic transmission system of the present invention which is a low pressure precharge hydraulic oil mode. Fig. 6 is a hydraulic transmission of the present invention. The system is a hydraulic circuit diagram for accelerating the driving mode. Fig. 7 is a hydraulic circuit diagram of the hydraulic transmission system of the present invention for the braking mode of the vehicle. Fig. 8 is a hydraulic circuit diagram of the energy transmission mode of the hydraulic transmission system of the present invention. Main component symbol description] 1 Rear wheel 2 Front wheel 3 Hydraulic power combination unit Ρ1 Pump 马达 Motor 31 Two-way valve 32 Fuel tank 4 Valve control combination unit 41 First control valve 42 Second control valve 43 Third control valve 44 Fourth control Valve 45 Flow proportional solenoid valve 201228866 5 Hydraulic drive combination unit 51 Flywheel P2 Variable pump Ml Hydraulic quantitative 6 of 7 low-pressure accumulator the high pressure accumulator control valve 8
1010