Mechanism and Machine Theory, Год журнала: 2025, Номер 211, С. 106021 - 106021
Опубликована: Апрель 26, 2025
Язык: Английский
Journal of Energy Storage, Год журнала: 2025, Номер 116, С. 115936 - 115936
Опубликована: Март 7, 2025
Язык: Английский
Процитировано
2
Green Energy and Intelligent Transportation, Год журнала: 2025, Номер unknown, С. 100286 - 100286
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
2
SAE technical papers on CD-ROM/SAE technical paper series, Год журнала: 2025, Номер 1
Опубликована: Янв. 31, 2025
<div class="section abstract"><div class="htmlview paragraph">To enhance energy efficiency of series-parallel hybrid system, this paper investigates and compares the effects adding gear ratio at different power source position on performance vehicle. Firstly, effect gears various positions is analyzed basis intelligent multi-mode drive (IMMD) configuration, potential working modes resulting from added ratios are examined. Secondly, multi-objective particle swarm optimization (MOPSO) algorithm used to optimize transmission new gears, laying groundwork for comparing configurations. Moreover, fuel economy optimized configuration was evaluated using a rapid dynamic programming approach with objective function minimizing consumption during transfer. Finally, in accordance aforementioned research, acceleration economic configurations were compared quantitatively. The comparative analysis shows that powertrain, increasing driving motor direct had significant improving performance, 100 km time increased by 14.08%. engine under urban dynamometer schedule (UDDS), reduced 4.76% average, same dynamics, exhibiting 20.63% improvement 4.29% worldwide harmonized light vehicles test cycle (WLTC) cycle.</div></div>
Язык: Английский
Процитировано
0
SAE technical papers on CD-ROM/SAE technical paper series, Год журнала: 2025, Номер 1
Опубликована: Янв. 31, 2025
<div class="section abstract"><div class="htmlview paragraph">Electrified powertrain configurations are critical to the fuel economy and performance of hybrid vehicles. While single planetary gear (PG) - such as Toyota Prius have advantage simple control excellent economy, generator1 is unable participate in drive, resulting poor acceleration. To overcome these problems, we propose a new multi-gear electronically controlled continuously variable transmission (ECVT) due its high efficiency acceleration performance. It requires only one PG two synchronizers. For this type ECVT vehicle, paper describes detail synchronizer-based shift logic configuration. Furthermore, power flow dynamics modeling process different operating modes systematically analyzed. In addition, global optimal Dynamic Programming (DP) algorithm presented near-optimal energy management strategy, Rapid-DP, employed evaluate consumption design, respectively. The newly proposed design also qualitatively quantitatively analyzed under Federal Test Procedure 72 (FTP72), Highway Fuel Economy Cycle (HWFET) Worldwide Harmonized Light Vehicles (WLTC) driving cycles. case results show that compared with original Prius, configuration can effectively improve overall performance, improvement 4.01%-4.96%, 50% on average, smoothness comparable cycles, which verifies validity study. Meanwhile, study provides theoretical basis for optimizing modifying technology path power-split vehicles.</div></div>
Язык: Английский
Процитировано
0
Energy Conversion and Management, Год журнала: 2025, Номер 332, С. 119748 - 119748
Опубликована: Март 25, 2025
Язык: Английский
Процитировано
0
SAE technical papers on CD-ROM/SAE technical paper series, Год журнала: 2025, Номер 1
Опубликована: Апрель 1, 2025
<div class="section abstract"><div class="htmlview paragraph">Energy efficient configuration schemes are critical to the fuel economy and power of hybrid vehicles. Single planetary gear (PG) configurations highly integrated, simple reliable, but have limited saving potential. To overcome these problems, a new multi-gear split (PS) powertrain has been proposed because their high efficiency excellent overall performance. Only one PG synchronizer required. In order systematically explore all possible designs multi-gear-PS designs, this paper proposes topological tree graph method: 1) inspired by “D” matrix automatic modeling method, is proposed, which used complete isomorphism determination, mode feature classification, dynamics modeling; design synthesis method for PS investigated; 2) A near-optimal energy management strategy, improved Rapid-DP (IR-DP), fast computation control rules candidate designs. The computational results IR-DP similar those dynamic programming (DP), time reduced factor more than 1000; 3) newly scheme comprehensively analyzed in terms economy. case show that can effectively screen out with better performance, under different driving cycles, 6.18% on average, 52.1%, verifies effectiveness study. At same time, study provides theoretical basis selection integration technology paths series-parallel HEVs.</div></div>
Язык: Английский
Процитировано
0
Energy, Год журнала: 2025, Номер unknown, С. 136021 - 136021
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Mechanism and Machine Theory, Год журнала: 2025, Номер 210, С. 106034 - 106034
Опубликована: Апрель 14, 2025
Язык: Английский
Процитировано
0
Mechanism and Machine Theory, Год журнала: 2025, Номер 211, С. 106021 - 106021
Опубликована: Апрель 26, 2025
Язык: Английский
Процитировано
0