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| 1 | Power-balancing Instantaneous Optimization Energy Management for a Novel Series-parallel Hybrid Electric Bus显示文摘Energy management(EM) is a core technique of hybrid electric bus(HEB) in order to advance fuel economy performance optimization and is unique for the corresponding configuration. There are existing algorithms of control strategy seldom take battery power management into account with international combustion engine power management. In this paper, a type of power-balancing instantaneous optimization(PBIO) energy management control strategy is proposed for a novel series-parallel hybrid electric bus. According to the characteristic of the novel series-parallel architecture, the switching boundary condition between series and parallel mode as well as the control rules of the power-balancing strategy are developed. The equivalent fuel model of battery is implemented and combined with the fuel of engine to constitute the objective function which is to minimize the fuel consumption at each sampled time and to coordinate the power distribution in real-time between the engine and battery. To validate the proposed strategy effective and reasonable, a forward model is built based on Matlab/Simulink for the simulation and the dSPACE autobox is applied to act as a controller for hardware in-the-loop integrated with bench test. Both the results of simulation and hardware-in-the-loop demonstrate that the proposed strategy not only enable to sustain the battery SOC within its operational range and keep the engine operation point locating the peak efficiency region, but also the fuel economy of series-parallel hybrid electric bus(SPHEB) dramatically advanced up to 30.73% via comparing with the prototype bus and a similar improvement for PBIO strategy relative to rule-based strategy, the reduction of fuel consumption is up to 12.38%. The proposed research ensures the algorithm of PBIO is real-time applicability, improves the efficiency of SPHEB system, as well as suite to complicated configuration perfectly. | SUN Dongye LIN Xinyou QIN Datong DENG Tao | 2012 | Chinese Journal of Mechanical Engineering2012，25，6： | 18 |
| 2 | DIRECT DIGITAL DESIGN AND SIMULATION OF MESHING IN WORM-GEAR DRIVE显示文摘蠕虫齿轮开车的一个直接数字的设计方法(DDDM ) 被建议。它是直接基于生产的模拟处理并且与常规建模方法完全不同。装载牙齿接触分析(LTCA ) 方法被分析,在哪个出现寻找技术的先进表面被包括。接触地区和传动错误(TE ) 上的 misalignmenterrors 和接触变丑的影响被讨论。蠕虫牙齿表面的 Combinedmodification 途径被介绍。借助于 DDDM 和 LTCA,验证蠕虫齿轮开车的效果是很方便的“ s 修正途径。分析结果显示出那,在侧面方向的修正在纵的方向减少减少蠕虫齿轮开车 tomisalignment 错误和修正的敏感 TE。因此,蠕虫齿轮开车的优化设计能在实际生产过程以前被完成。 | XU Wujiao QIN Datong SHI Wankai | 2006 | Chinese Journal of Mechanical Engineering2006，19，3： | 10 |
| 3 | CONTROL STRATEGY OF A PARALLEL HYBRID CAR WITH A METAL BELT-PLANETARY GEAR CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM显示文摘The most remarkable characteristic of a metal belt-planetary gear continuously variable transmission is a wider ratio range and a bigger torque capacity than a conventional metal pushing belt continuously variable transmission. A parallel hybrid car with this transmission system not only can reduce fuel consumption and pollutant emission at a ECE city cycle, but also can keep the motor working in the most efficiency area and can be started by a lower power motor by oneself. At the same time, the continuously variable transmission system can realize the smooth switch between the motor and the engine. | Sun Dongye Qin Datong Wang HongyanState Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China | 2002 | Chinese Journal of Mechanical Engineering2002，15，3： | 5 |
| 4 | RESEARCH ON DESIGN METHOD OF A MULTIPLE DISC WET BRAKE IN LUBRICATED ENVIRONMENT显示文摘The rmomechanical phenomena occurring between friction pairs greatly change the distributions of lining pressure and friction surface temperature of a multiple disc wet brake. It has become one of the main causes of brake failure. In order to understand these thermomechanical phenomena, several design and mate
rial factors that have great influence on thermomechanical phenomena, such as heat transfer coefficient, friction factor, sliding velocity, initial lining pressure and so on, are analyzed. An isothermal design method is proposed for designing a multiple disc wet brake. | Qin Datong Sun DongyeState Key Laboratory ofMechanical Transmission,Chongqing University,Chongqing 400044, China | 2003 | Chinese Journal of Mechanical Engineering2003，16，4： | 5 |
| 5 | STUDY ON CONTROL STRATEGY OF CLUTCH STARTING FOR CAR WITH A METAL PUSHING BELT-PLANETARY GEAR CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM显示文摘The automatic control of clutch startion in car with a metal pushing belt-planetary gear continuously variable transmission (CVT)is a complex problem.A suited control strategy is required to ralize quick and smooth start.A simulation state space equation is established on clutch startion control of a car startion process to weaken the jerk motion is introduced.The simulation results indicate that the jerk motion of clutch startiong is below 10m/s^3. | Sun Dongye Qin Datong Wang Hongyan State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044,China | 2002 | Chinese Journal of Mechanical Engineering2002，15，1： | 5 |
| 6 | Integrated Control Strategy for CVT Powertrains with Consideration of Vehicle Drivability显示文摘During shift,power flow is not interrupted in powertrains equipped with continuously variable transmission(CVT).When hard acceleration is commanded,engine speed will flare and corresponding torque will be consumed,which leads to a drop in vehicle drive torque and also the vehicle acceleration.This is the reason why CVT vehicles have poor drivability during hard acceleration maneuver.Conventional method such as torque compensation doesn't always work due to the limited backup torque of engine.According to this,means to evaluate the drivability of CVT vehicles are studied,affect factors of drivability are analyzed in detail.Hard acceleration process of CVT vehicle is studied by theoretical analysis,based on which engine torque and ratio change rate of CVT are identified as two key control parameters that decide the drivability of CVT vehicles during hard acceleration maneuver.Therefore,a control strategy based on restricting the change rate of CVT ratio together with torque compensation is proposed,and two different algorithms to establish the limitation of ratio change rate are proposed.These two algorithms are simulated and compared with each other,results indicate that drop of vehicle acceleration is eliminated evidently by limit the change rate of CVT ratio,but small ratio change rate also results in a longer time to finish the accelerate process,an algorithm to decide a proper ratio change rate is needed in order to tune these different characteristics.In order to get better control effects,a new fuzzy logic based algorithm is proposed to decide a proper ratio change rate during kick down conditions,simulation and experiment results indicate that,the amount of vehicle acceleration decrease is reduced from about 1 m/s2 to almost 0,in the mean time the accelerate process only delayed for about 0.3 s.The proposed control strategy and algorithm can effectively tune the characteristics of CVT equipped vehicle during kick down conditions. | SUN Dongye LUO Yong QIN Datong | 2012 | Chinese Journal of Mechanical Engineering2012，25，3： | 3 |
| 7 | VIBRATION CONTROL AND EXPERIMENT OF THREE-RING REDUCER显示文摘0INTRODUCTIONThethreeringreducerisanewkindofgeardrivedevelopedinthepastdecade.Adoptingthenewconceptionof“paralelandmovableax... | Zhu, Caichao Qin, Datong Li, Runfang | 1998 | Chinese Journal of Mechanical Engineering1998，11，4： | 2 |
| 8 | Integration of numerical analysis,virtual simulation and finite element analysis for the optimum design of worm gearing显示文摘 | Daizhong Su Datong Qin | 2003 | Journal of Materials Processing Technology2003，，42： | 1 |
| 9 | Precise inspection of worm tooth profile based on coordinate measurements显示文摘 | Liu Fenglin Qin Datong Deng Xingyi | 2007 | Journal of Chongqing University:Natural Science Edi- tion2007，30，11： | 1 |
| 10 | Studyon dynamic characteristics of wind turbine planetarygear system coupled with bearing at varying wind speed显示文摘 | Zhang Zhengguo Qin Datong Yang Jun | 2011 | Applied Mechanics and Materials2011，86，8： | 1 |
| 11 | A systematic model for dynamics and control of dual clutch transmissions显示文摘 | Liu Yonggang Qin Datong Jiang Hong | 2009 | Journal of Mechanical Design2009，31，7： | 1 |
| 12 | Analysis of power flow in a counter-rotating epicyclic gearing for electrical propulsion system 显示文摘 | Shi Wankai Li Liangjun Qin Datong | 2011 | Journal of Mechanical Engineering Science2011，225，12： | 1 |
| 13 | The Study of Tooth Modification on Double Enveloping Worm Gearing with Developable Tooth Surface显示文摘 | Qin Datong Zhang Guanghui | 1993 | Chinese Journal of Mechanical Engineering:English Edition1993，6，2： | 1 |
| 14 | Study for simulation analysis and experiment on high-speed dry gear milling by flying cutter显示文摘 | LIN Chao QIU Hua QIN Datong | 2005 | VDI Berichte2005，1904，1： | 1 |
| 15 | A Control Strategy on Starting up a Vehicle with AMT显示文摘 | Amir I A Qin Datong Liu Zhenjun | 2005 | In- formation Technology Journal2005，4，2： | 1 |
| 16 | Integration of numerical analy- sis, virtual simulation and finite element analysis for the op- timum design of worm gearing 显示文摘 | SU Daizhong QIN Datong | 2003 | Journal of Materials Processing Technology2003，138，13： | 1 |
| 17 | A solid modeling and geometric analysis of hourglass worm gearing显示文摘 | Qin Dongxing Qin Datong Shi Wankai | 1998 | Journal of Chongqing University1998，21，4： | 1 |
| 18 | Shiftschedule optimization for Dual Clutch Transmissions显示文摘 | Mac Yonggang Liu Datong Qin Yi Zhang | 2009 | Mechanism and Machine Theory2009，42，： | 1 |
| 19 | A Systematic Model for Dynamics and Control of Dual Clutch Transmissions 显示文摘 | Liu Yonggang Qin Datong Jiang Hong | 2009 | Journal of Mechanical Design2009，31，7： | 1 |
| 20 | Dynamics Simulation of ISG-HEV Engine during Starting 显示文摘 | Li Hongpeng Qin Datong Yang Yang | 2005 | Journal of Chongqing University (Natural Science Edition)2005，28，6： | 1 |
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