車流率 的英文怎麼說
中文拼音 [jūliúlǜ]
車流率
英文
rate of traffic flow-
This substantially ups the effectiveness of the barge boards, by dramatically reducing the vortices generated in this area, hence improving the aero efficiency of the bottom of the car
這項改變戲劇性地減少本區產生的渦流，實質上增加了破風板的效率，由此加強車底的空力效率。The thesis is devoted to exploiting a permanent magnet synchronous machine ( pmsm ) for the parallel hybrid electric vehicle ( phev ). three parts are included as follows : at first, in the electromotor state, the current control strategies of pmsm are determined. giving the elementary method for solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state
本課題的研究工作主要圍繞開發一臺並聯式混合動力電動汽車（ phev ）用永磁同步電機（ pmsm ）展開，所作的工作主要包括以下幾個部分：首先，確立了phev用pmsm電動機運行狀態時的電流控制策略，針對pmsm在電動機運行狀態時提高弱磁擴速能力和在發電機運行狀態時減小固有電壓調整率的相互矛盾，提出了初步的解決方法。It looks upon water resistant as load, simulate every instance of locomotive running and check its every parameter automatically, then collect and dispose these data of parameters, calculate the power of simulating running of locomotive, which is based on the current, and voltage of host dynamotor. afterward, it can be judged from the working state of locomotive. through experiment and adjust each parameter, it can provide important warrant to the components of locomotive whether they can work normally and credibly
即以水阻作為負載，模擬機車運行，對機車的主發電動機的電流、電壓和柴油機的轉速等參數進行檢測，並對檢測結果進行處理，計算出模擬機車運行時的功率，並以此為依據，對機車的工作狀念進行判斷，通過水阻試驗，調整有關參數，使機車運行時能發揮所要求的功率和滿足規定的工作特性。Harmonic analysis of high frequency ac power distribution system in electric vehicle
電動汽車高頻交流功率分佈系統的諧波分析Analyse of powel flow in guide vehicle on the j characteristic diagram
特性圖的指南車功率流分析In view of the poor stop accuracy, unstability of climbing at reduced or low speed and over - winding of mine ac lift when power braking is used, a siemens all - numerical rectification device is applied in the braking system of mine lift and its control mechanism and method are described
針對採用動力制動礦井交流提升機停車準確率差，減速與低速爬行不平穩及產生過卷的問題，將西門子全數字整流裝置應用到提升機制動控制系統，並介紹了該系統的控制原理與方法。This strategy effectively solves the power distribution between the apu and batteries during the drive of the heb. the power control model and multi - torque switching strategy of the driving motors control the charging - recharging current of the batteries within a wide range, which contribute to the improvement of the efficiency
該策略很好的解決了車輛行駛時輔助動力系統與蓄電池組之間的功率分配，並且驅動電動機採用功率控制模式以及多級動力輸出切換策略，有效的控制了蓄電池的充放電電流，從而提高了整車效率。With the help of video detection and recognition methods, we can sample real - timely traffic messages, such as traffic flow, road situation and so on, and get the relative information so as to avoid traffic jam before it happens, on the other hand, to real - time traffic breach detection, video detection and recognition methods is also very effective, especially, it can provide strong evidence for traffic policemen
通過視頻圖象的檢測與識別，可以對道路的交通流、路況等實時監視，提取交通流信息（車流量、車道佔有率、車速等） ，在交通擁擠未發生時，及時採取措施、疏導交通、防止交通擁擠發生；另一方面，通過視頻圖象的檢測與識別，還可以實時檢測交通違章現象、識別違章車輛的車牌號碼，為公安交通管理部門提供強有力的執法證據。Multi - barretter driving patent technology, each lamp tube is an independent system and each barretter s load is no more than 65w abundant power stable
1多鎮流器推動專利技術，每組燈管成為獨立的系統，單個鎮流器負荷不超過65w ，形成大馬拉小車，功率富餘量大，質量穩定。This paper mainly analyzes control delay at urban signalized intersections. based on the survey data, this paper talks about vehicles movement characteristics of arrival and depart process, then the queueing headway distribution is obtained, and the suggestion that saturated flow should be measured from the sixth queuing vehicle is offered. using random process theory analysis and computer simulation, the queuing length distribution model is obtained
本論文針對平面信號控制交叉口的延誤問題進行了分析，在實測數據分析的基礎上，探討了車輛到達過程和離開過程的運行特性，給出信號交叉口排隊離散車頭時距分佈模型，提出飽和流率的測量應從第六個離開的排隊車輛算起；運用隨機過程理論和計算機模擬的方法得到了信號交叉口排隊長度分佈模型，在此基礎上運用協調變換的方法改進了車輛延誤模型。Optimize the organization of angular wagon flow, improve the working efficiency of marshalling station
優化折角車流組織提高編組站作業效率After that, she adopts game theory to study twice price reductions. from the game primary factors such as participants, strategy and benefits, she sizes up the efficiency of the price competition, and analyzes the strategical selection system in competition and cooperation between humen bridge co. and humen ferry co. in the third section, firstly, she draws out the linear regression formula with time series data and vehicle flow to estimate future flow under the condition of un - reducing price with the tools of statistics
第三部分先用統計學的基本原理和分析工具求得虎門大橋車流量與時間序列的線性回歸方程，來推算假設在未調價條件下的年流量；再運用管理經濟學的價格彈性理論比較調價前、后的車流量和價格的變化關系，求出二類車的價格彈性系數，用以判斷虎門大橋這次二類車調價策略的效率性。We also analyze the influence of the boundary condition 、 safety distance and deceleration probability to the traffic flow. finally, we propose an crossroad modle. this model is made up of one main road and one branches ： traffic with lights placed on the crossing, vehicles " breaking while running and turning to other direction while jamming. we investigate the velocity and flow of the model when the initial density, the brake and turning probabilities, the green to signal ratio are changed. then the reasons causing all the kinds of phenomena are analyzed
最後研究了周期性邊界條件下的十字路口的ca模型，該模型由一條主幹道和一條支道組成，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中對突發事件發生反應的剎車，路口的車輛可以轉向等各種實際交通行為，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、紅綠燈信號的綠信比等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research
接著，建立了和研究了二維二速的主幹道模型，該模型模擬了城市交通中一條主幹道，多條支道的交通情況，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中可以有對突發事件發生反應的剎車，在發生堵塞時，路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生，給出了車輛演化的演化方程，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。最後，在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下，將此法推廣到對二維bml模型的模擬上，得到了與用以往方法的研究結果相類似的速度-密度圖線，且車輛從運動相到堵塞相轉變的上下臨界密度是一致的，同時分別給出車輛在處于暢通相和堵塞相時， boltzmann函數在格子上的分佈情況，進一步驗證了此法的可行性。Maximum possible rate of flow
最大可能車流率Based on the comprehensive analysis of the road traffic flow ' s characteristics due to the bus stop without bus bay, the multivariate linear models of the speed and the headway are formed with the variables of the stop frequency, the stop time, the overall length of the stop and its reserve time of the bus and the vehicle flow applying the software of excel, and then the strict mathematical checks are made
文章首先比較全面地分析非港灣式公交停車影響下道路交通流特徵，然後藉助于excel軟體，構建關于公交停車頻率、公交停車時間、最大公交停車長度及其存在時間、道路流量的車速和車頭時距多元線性模型，並進行了嚴格的數學檢驗。Secondly, we study an improved nagel - schreckenberg model with open boundary condition. we analyze the influence of the boundary condition 、 safety distance and deceleration probability to the traffic flow. thirdly, we propose the three branch road modle without control for the confluence phenomena of cars
接著，研究了一種改進的ns模型在開放邊界條件下，安全距離，剎車概率，延遲起動對交通流的影響，較為準確的再現了真實交通中的大尺度堵塞及緩解現象。In the third chapter, an improved ca model of the traffic flow in the two - lane roadway is proposed to describe highway traffic under the open boundary conditions by the consideration of the relative motion of vehicles and the relation of deceleration probability. numerical simulations have been carried out
本文先在改進的ns元胞自動機交通流模型的基礎上，提出一個高速公路雙車道元胞自動機模型來模擬開放性邊界條件下的車流運動，並考慮兩車道之間左邊界開放程度的比例系數及車輛加減速概率影響。To work the line control parameters out, the thesis deduced the formula calculating the equivalent traffic volume of intersection, put forward and deduced the elementary saturated traffic volume of intersection, gave the bounds of all the parameters needed for the stop delay of vehicle at the intersection. taking the influence of turning vehicles and the difference of the importance between two different adjoined segments of the arterial street into account, the thesis established the formula calculating the traffic volume of the arterial street when the offsets of all the intersections are optimized
論文推導了交叉口當量交通量的計算公式，提出並推導了交叉口飽和交通流率基本值；明確給出了計算車輛在交叉口上的延誤所需的各個參數的范圍；考慮了各個交叉口轉彎車輛的影響和主幹道上不同路段的重要性差異，建立了主幹道交通量的計算公式。The collection of real - time traffic data, such as traffic load, average travel speed, vehicle classification, and lane occupancy, plays a critical role in the advanced traffic management system and traveler information systems
實時交通流數據的採集，包括車流量統計、車道平均車速、車型分類、車道佔有率等，在智能交通系統中起著重要的作用。分享友人