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OPTIMIZATION APPROACH FOR HYBRID ELECTRIC VEHICLE powertrain DESIGN

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Chinese Journal of Mechanical Engineering 2005年第1期18卷 30-36页

作者： ZhuZhengli ZhangJianwu YinChengliang SchoolofMechanicalandPowerEngineering ShanghaiJiaotongUniversityShanghai200030China

According to bench test results of fuel economy and engine emission for thereal power-train system of EQ7200HEV car. a 3-D performance map oriented quasi-linear model isdeveloped for the configuration of the powertrain components such as internal combustion engine,traction electric motor, transmission, main retarder and energy storage unit. A genetic algorithmbased on optimization procedure is proposed and applied for parametric optimization of the keycomponents by consideration of requirements of some driving cycles. Through comparison of numericalresults obtained by the genetic algorithm with those by traditional optimization methods, it isshown that the present approach is quite effective and efficient in emission reduction and fueleconomy for the design of the hybrid electric car powertrain.

关键词： Hybrid electric vehicle(HEV) powertrain Components sizing Optimization Genetic algorithm

Electromagnetic Compatibility Design for powertrain Control Module

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Journal of Beijing Institute of Technology 2009年第1期18卷 16-21页

作者：王宇明崔涛刘波澜张付军 School of Mechanical and Vehicular Engineering Beijing Institute of Technology

In order to improve the electromagnetic compatibility of powertrain control module （PCM）, a system procedure of vehicular PCM electromagnetic alteration is presented in this paper. First of all, the box of the PCM is divided into different cabins to eliminate interferences between power supply circuit, analog circuit and digital circuit. Secondly, the working principle and electromagnetic （EM） characters of all the signals adopted by a typical PCM are analyzed. Then according to specific electromagnetic characters, different measures are adopted in corresponding signal process circuits or signal transfer cables, such as ground layout designing, power supply protecting, signal shielding and drive cable interference suppressing. Finally, further improvement may also needed regarding to practical electromagnetic compatibility test effects. The final test shows that, with all the measures mentioned above, the conducted emission of a PCM can be reduced by 20 dB; meanwhile, the radiated emission can be reduced by 30 dB comparing to the original system.

关键词： powertrain electronic control module electromagnetic compatibility design

Analysis of vehicle powertrain dynamic performance

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Journal of Beijing Institute of Technology 2013年第2期22卷 171-178页

作者：罗国良张付军袁豪杰 School of Mechanical Engineering Beijing Institute of Technology Beijing Research Institute of Mechanical & Electrical Technology

To study the vehicle dynamic characteristics under typical cycle conditions, a steady-state simulation model of the engine in GT-Power is established and verified with engine bench test data. A dynamic model of the engine is then established. A co-simulation with the engine dynamic model in GT-Power and the vehicle transmission model in AMESim is conducted based on the technology of HLA/RTI. The parameter changes of vehicle powertrain in the accelerating process of 0 - 32 km/h, and vehicle typical cycle conditions are studied. The influence laws of the typical parameters influen- cing vehicle dynamic characteristics are obtained, and a new approach of improving vehicle dynamic characteristics is proposed. The results show that the vehicle powertrain dynamic model can simu- late, analyze and predict dynamic changes of vehicle in actual operating conditions and guide power- train matching and optimization.

关键词： powertrain dynamic characteristics numerical simulation experimental research

Parameters matching and optimization of parallel hybrid electric vehicle powertrain

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High Technology Letters 2010年第1期16卷 34-38页

作者：陈勇 Chen Xiaokai Lin Yi School of Mechanical Engineering Beijing Institute of Technology Beijing 100081 P.R. China Beijing Automotive Technology Center Beijing 100176 P.R. China

Aiming at the development of parallel hybrid electric vehicle （PHEV） powertrain, parameter matching and optimization are presented, According to the performance of PHEV, the optimization range of engine, motor, driveline gear ratio and battery parameters are determined. And then a two-level optimization problem is formulated based on analytical target cascading （ATC）. At the system level, the optimization of the whole vehicle fuel economy is carried out, while the tractive performance is defined as the constraints. The optimized parameters are cascaded to the subsystem as the optimization targets. At the subsystem level, the final drive and transmission design are optimized to make the ratios as close to the targets as possible. The optimization result shows that the fuel economy had improved significantly, while the tractive performance maintains the former level.

关键词： parallel hybrid electric vehicle (PHEV) parameters matching optimization analytical target cascading (ATC) powertrain

Rules for Amalgamating the Reliability of Elements of powertrain Systems at Maintenance

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Journal of Mechanics Engineering and Automation 2019年第1期9卷 24-32页

作者： S.V.Belodedenko V.I.Hanush О.M.Hrechanyi The Department of Metallurgical Production Machines and Units National Metallurgical Academy of UkraineDnipro 49600Ukraine

The amalgamation procedure is actual when using structural methods of *** may apply as the case of the action of a complex of damaging processes on a structural element and the case of the action of a certain damaging process on a system of *** methods of reliability are poorly adapted for powertrain mechanical systems with a series structural scheme of elements subjected to the gradual influence of several degradation *** problem of amalgamation of individual indicators is exacerbated at the stage of operation when diagnosing the technical state of the mechanical *** application of the classical rule of amalgamation by multiplying the probabilities of survival leads to the effect of *** rules of amalgamation have been developed,which deprive the assessment of the reliability of excessive *** complex index of the technical condition is offered—the resource safety index(RSI).Its use determines the remaining *** algorithm for searching the RSI contains an assessment of the criticality of the *** search of RSI under the influence of the complex of damaging processes on the element of the powertrain system is *** efficiency of the RSI method is shown by the example of the reliability assessment of aircraft *** of the RSI method increases the guaranteed lifetime by 4-10 times compared with traditional methods.

关键词： Reliability indices powertrain units maintenance resource lifetime risk

The Research on Automated Drivability Calibration Method Based on powertrain Dynamometers

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The Research on Automated Drivability Calibration Method Bas...

Study on Driving Performance of HEV During Engine Starting Process Based on powertrain Test Bed

2018中国汽车工程学会年会

作者： LI Guanglei WENG Yan Ebner Thomas WANG Jun China FAW Group Co. LtdProduct and Research Center

The traditional drivability calibration is a very time consuming manual process and it must be done on entire *** paper discussed a highly automated drivability calibration method that can be carried out with powertrain-in-loop test system,which significantly improves drivability calibration *** this method,a DOE test plan regarding calibration parameters and operating point parameters is setup,and then these parameters are automatically modified according to the plan before each test Driving operations are also automatically performed on testbed and the objective drivability evaluation tool gives scores for each *** the ratings are restored and the mathematical models are created automatically basing on these *** optimization results and the calibrated new maps are obtained basing on the *** ECU parameter calibration test dealing with long response delay was performed on powertrain testbed to verify this method and the results proved that this method had effectively and efficiently improved the drivability performance of the tested vehicle for the target problems.

关键词： drivability objective automated calibration powertrain

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Study on Driving Performance of HEV During Engine Starting P...

Toward More Electric powertrains in Aircraft:Technical Challenges and Advancements

2016中国汽车工程学会年会暨展览会

作者： Han Wei Pang Erchao Liu Daoyuan Northeast Dianli University School of Energy and Power Engineering FAW R&D Center Vehicle Performance Development Sec.Electric Vehicle Dept FAW R&D Center Powertrain Calibration Sec.Engine Dept

When the hybrid cars driving in the crowded city,frequent starting of the engine is inevitable and the driving performance in engine starting process is t-he key indicator of the customer’ s evaluation of the *** this paper,a systematic analysis of the engine starting process is carried out for a P2 configuration hybrid electric *** on the above theoretical research,a kind of evaluation method is developed,which can be objective and reproducible to evaluate the driving performance of vehicle during the engine starting *** on this method,the test is carried out on the powertrain *** test results show that the method is *** is the key way to evaluate the driving performance of engine starting process,and it is also an important basis for the selection of the engine starting strategy.

关键词： hybrid engine start drivability powertrain test bed

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CES Transactions on Electrical Machines and Systems 2021年第3期5卷 177-193页

作者： Joseph Benzaquen JiangBiao He Behrooz Mirafzal the School of Electrical and Computer Engineering Georgia Institute of TechnologyAtlantaGA 30332 University of Kentucky LexingtonKY 40506 Electrical and Computer Engineering Department Kansas State UniversityManhattanKS 66506 USA

The main purpose of this article is to provide an instructive review of the technological challenges hindering the road toward more electric powertrains in ***,all-electric,and turboelectric powertrain architectures are discussed as possible fuel consumption and weight reduction *** these architectures,the short-term implementation of hybrid and all-electric architectures is limited,particularly for large-capacity aircraft due to the low energy/power density levels achievable by state-of-the-art electrical energy storage ***,turboelectric architectures with advanced distributed propulsion and boundary layer ingestion are set to lead the efforts toward more electric *** the center of this transition,power converters and high-power density electric machines,i.e.,electric motors and generators,and their corresponding thermal management systems are analyzed as the key devices enabling the more electric ***,to further increase the fuel efficiency and power density of the aircraft,the benefits and challenges of implementing higher voltage powertrains are ***,based on the findings collected in this article,the projected roadmap toward more electric aircraft powertrains is ***,the individual targets for each technology,i.e.,batteries,electric machines,and power converters,and how they translate to future aircraft prototypes are illustrated.

关键词： All-electric aircraft hybrid aircraft powertrain power converters electric machines efficiency power density

Fuel Saving and Control for Hybrid Electric powertrains

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Energy and Power Engineering 2013年第5期5卷 343-351页

作者： Mohamed Zaher Sabri Cetinkunt Mechanical and Industrial Engineering Department University of Illinois at Chicago Chicago USA

This paper focuses on comparing the performance of the embedded control of a hybrid powertrain with the original and downsized engine. The main idea is to store the normally wasted mechanical regenerative energy in energy storage devices for later usage. The regenerative energy recovery opportunity exists in any condition where the speed of motion is in the opposite direction to the applied force or torque. A rule based optimal robust control algorithm is developed and is tuned for different work cycles. A comparison of the fuel savings using the hybrid system with the original and downsized engines is performed.

关键词： Hybrid powertrain Embedded Control State of Charge Downsized Engine