【摘要】：純電動(dòng)物流車動(dòng)力參數(shù)的匹配及優(yōu)化的發(fā)展越來越受到重視,其驅(qū)動(dòng)系統(tǒng)的合理匹配以及傳動(dòng)系統(tǒng)傳動(dòng)比的優(yōu)化,是改善整車動(dòng)力性及經(jīng)濟(jì)性的關(guān)鍵方法。驅(qū)動(dòng)控制策略作為純電動(dòng)物流車整車的核心,直接關(guān)系到車輛經(jīng)濟(jì)性、動(dòng)力性、安全性等方面的表現(xiàn),是純電動(dòng)物流車各部件協(xié)同運(yùn)作和高效運(yùn)行的保障。本文針對純電動(dòng)物流試驗(yàn)車單次充電后續(xù)駛里程短,驅(qū)動(dòng)控制策略不完善等問題進(jìn)行研究�；趦蓳踝兯倨骶哂懈纳萍冸妱�(dòng)汽車經(jīng)濟(jì)性的作用,為試驗(yàn)車的傳動(dòng)系進(jìn)行兩擋變速器匹配,并完成對傳動(dòng)系傳動(dòng)比的優(yōu)化;同時(shí)根據(jù)試驗(yàn)車實(shí)際使用特點(diǎn),完善驅(qū)動(dòng)控制策略。首先,在AVL-CRUISE軟件中依據(jù)試驗(yàn)物流車的結(jié)構(gòu)布置形式建立整車模型,根據(jù)試驗(yàn)車中各部件技術(shù)參數(shù)設(shè)置各部件模型中的關(guān)鍵參數(shù),同時(shí)對整車加速性能、最高車速、最大爬坡度和續(xù)駛里程等性能進(jìn)行了仿真分析。將仿真結(jié)果與樣車試驗(yàn)獲得的動(dòng)力性和經(jīng)濟(jì)性結(jié)果進(jìn)行對比,驗(yàn)證模型的準(zhǔn)確性。其次為改善純電動(dòng)物流車的經(jīng)濟(jì)性,在原車基礎(chǔ)上為純電動(dòng)物流車匹配一個(gè)兩擋變速器。通過Isight集成AVL-CRUISE對傳動(dòng)系傳動(dòng)比進(jìn)行優(yōu)化,獲得優(yōu)化結(jié)果。將基于相關(guān)參數(shù)優(yōu)化后的AVL-CRUISE整車模型進(jìn)行仿真計(jì)算,驗(yàn)證其經(jīng)濟(jì)性的改善。最后結(jié)合純電動(dòng)物流車的實(shí)際使用特點(diǎn),對純電動(dòng)物流車的驅(qū)動(dòng)控制策略進(jìn)行了研究,包括行駛控制策略、制動(dòng)能量回收控制策略、起步控制策略,并在MATLAB/Simulink中建立了驅(qū)動(dòng)控制策略模型,與AVL-CRUISE軟件聯(lián)合仿真進(jìn)行驅(qū)動(dòng)控制策略的實(shí)現(xiàn),得出車輛的性能曲線圖和相關(guān)信息,對提出的驅(qū)動(dòng)控制策略進(jìn)行了驗(yàn)證。
[Abstract]:More and more attention has been paid to the development of matching and optimizing the power parameters of pure electric logistics vehicles. The reasonable matching of driving system and the optimization of transmission ratio of transmission system are the key methods to improve the power performance and economy of the whole vehicle. As the core of pure electric logistics vehicle, drive control strategy is directly related to the performance of vehicle economy, power performance, safety and so on. It is the guarantee of cooperative and efficient operation of all parts of pure electric logistics vehicle. In this paper, the following driving mileage is short and the driving control strategy is not perfect. Based on the fact that the two-gear transmission can improve the economy of the pure electric vehicle, the transmission system of the test vehicle is matched and the transmission ratio of the transmission system is optimized. At the same time, according to the actual characteristics of the test car, the driving control strategy is improved. First of all, in AVL-CRUISE software, the vehicle model is established according to the structure layout of the test logistics vehicle, and the key parameters of each component model are set according to the technical parameters of each component in the test vehicle. At the same time, the acceleration performance and the maximum speed of the whole vehicle are obtained. The performance of maximum climbing slope and driving mileage were simulated and analyzed. The simulation results are compared with the dynamic and economical results obtained from the prototype test to verify the accuracy of the model. Secondly, in order to improve the economy of the pure electric logistics vehicle, the pure electric logistics vehicle is matched with a two-speed transmission on the basis of the original vehicle. The transmission ratio of transmission system is optimized by Isight integrated AVL-CRUISE, and the optimized results are obtained. The optimized AVL-CRUISE model based on related parameters is simulated and calculated to verify the improvement of its economy. Finally, the driving control strategy of pure electric logistics vehicle is studied, including driving control strategy, braking energy recovery control strategy, starting control strategy. The driving control strategy model is established in MATLAB/Simulink, and the driving control strategy is realized by the simulation of AVL-CRUISE software. The curve of vehicle performance and relevant information are obtained, and the proposed driving control strategy is verified.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U469.72

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