本文選題：液壓傳動(dòng) + 混合動(dòng)力��； 參考：《長(zhǎng)春理工大學(xué)》2016年博士論文

【摘要】：液壓混合動(dòng)力技術(shù)利用液壓泵/馬達(dá)(二次元件)的四象限工作特性,能夠有效地實(shí)現(xiàn)制動(dòng)動(dòng)能和重力勢(shì)能的回收與再利用,由于液壓系統(tǒng)功率密度大的優(yōu)勢(shì),特別適用于重型負(fù)載的公交車、工程機(jī)械使用。當(dāng)混合動(dòng)力汽車各部件的結(jié)構(gòu)及性能特性確定后,整車的燃油經(jīng)濟(jì)性和排放水平取決于能量管理策略。我國(guó)對(duì)油電混合動(dòng)力汽車技術(shù)研究投入較多,而液壓元件特性與電氣元件特性差異較大,因此油電混合動(dòng)力汽車的設(shè)計(jì)經(jīng)驗(yàn)、控制算法和能量管理策略無法直接采用,需要進(jìn)行有針對(duì)性地深入研究。本文的研究工作主要針對(duì)并聯(lián)式液壓混合動(dòng)力汽車的能量管理策略展開,以最大程度地降低油耗為目標(biāo),結(jié)合蓄能器SOC、地理信息系統(tǒng)等建立混合動(dòng)力汽車的能量管理策略并予以優(yōu)化。主要的研究?jī)?nèi)容包括:1.建立一種可以從能量角度評(píng)價(jià)混合動(dòng)力汽車燃油經(jīng)濟(jì)性的等效理論,便于利用仿真手段對(duì)整車能量控制策略進(jìn)行優(yōu)化和評(píng)估。2.建立了液壓混合動(dòng)力車輛動(dòng)力系統(tǒng)各關(guān)鍵部件模型、駕駛員操作意圖模糊規(guī)則模型,以及液壓混合動(dòng)力系統(tǒng)的動(dòng)力學(xué)方程。3.開發(fā)液壓混合動(dòng)力車輛驅(qū)動(dòng)工況下的瞬時(shí)能量管理策略。在液壓混合動(dòng)力車輛等效模型的基礎(chǔ)上,建立液壓混合動(dòng)力系統(tǒng)充/放能綜合效率模型。提出了反映內(nèi)燃機(jī)和二次元件轉(zhuǎn)矩分配對(duì)能量效率的影響的再生制動(dòng)能量回收影響系數(shù),并研究了蓄能器SOC值對(duì)該系數(shù)的函數(shù)表達(dá)方法。4.結(jié)合蓄能器SOC開發(fā)液壓混合動(dòng)力車輛在循環(huán)工況下的能量管理策略,并在UDDS工況下對(duì)空載和滿載混合動(dòng)力汽車進(jìn)行燃油經(jīng)濟(jì)性仿真分析。5.利用液壓混合動(dòng)力實(shí)驗(yàn)臺(tái)對(duì)車輛起動(dòng)、輔助動(dòng)力、制動(dòng)能量回收控制、循環(huán)工況控制等進(jìn)行實(shí)驗(yàn)測(cè)試。本文的研究為液壓混合動(dòng)力汽車的設(shè)計(jì)開發(fā)提供了理論準(zhǔn)備,對(duì)液壓混合動(dòng)力產(chǎn)品在設(shè)計(jì)階段的燃油經(jīng)濟(jì)性評(píng)估和控制策略開發(fā)提供了理論依據(jù),具有很大的理論意義和應(yīng)用價(jià)值。
[Abstract]:Using the four-quadrant working characteristic of hydraulic pump / motor (quadratic element), the hydraulic hybrid power technology can effectively realize the recovery and reuse of braking kinetic energy and gravity potential energy, because of the advantage of high power density of hydraulic system. It is especially suitable for heavy load buses and construction machinery. When the structure and performance characteristics of the components of the hybrid electric vehicle are determined, the fuel economy and emission level of the whole vehicle depend on the energy management strategy. China has invested more in the research of oil-electric hybrid vehicle (HEV) technology, but the characteristics of hydraulic components and electrical components are quite different. Therefore, the design experience, control algorithm and energy management strategy of HEV can not be adopted directly. Need to carry out targeted in-depth research. The research work of this paper is mainly aimed at the energy management strategy of parallel hydraulic hybrid electric vehicle, with the aim of reducing fuel consumption to the maximum extent. Combined with accumulator SOC, GIS and so on, the energy management strategy of HEV is established and optimized. The main research contents include: 1. An equivalent theory is established to evaluate the fuel economy of hybrid electric vehicle from the angle of energy, which is convenient to optimize and evaluate the energy control strategy of the whole vehicle by means of simulation. The key components model of the hydraulic hybrid electric vehicle, the fuzzy rule model of the driver's operation intention, and the dynamic equation of the hydraulic hybrid electric power system are established. To develop the instantaneous energy management strategy of hydraulic hybrid electric vehicle under driving condition. Based on the equivalent model of hydraulic hybrid electric vehicle, the comprehensive efficiency model of charging and releasing energy of hydraulic hybrid power system is established. The influence coefficient of regenerative braking energy recovery which reflects the effect of torque distribution of internal combustion engine and secondary components on energy efficiency is proposed. The function expression method of SOC value of accumulator to the coefficient is studied. Combined with accumulator SOC, the energy management strategy of hydraulic hybrid electric vehicle under cycle condition is developed, and the fuel economy simulation analysis of no-load and full-load hybrid electric vehicle under UDDS condition is carried out. The vehicle starting, auxiliary power, braking energy recovery control and cycle condition control were tested by the hydraulic hybrid power test bench. The research in this paper provides theoretical preparation for the design and development of hydraulic hybrid electric vehicle, and provides a theoretical basis for the evaluation of fuel economy and the development of control strategy for hydraulic hybrid electric vehicle in the design stage. It has great theoretical significance and application value.
【學(xué)位授予單位】：長(zhǎng)春理工大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類號(hào)】：U469.7;TH137

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