Experimental validation of the Carbone–Mangialardi–Mantriota model of continuously variable transmissions

Yıldız, Ahmet; Bottiglione, Francesco; Piccininni, Antonio; Kopmaz, Osman; Carbone, Giuseppe

doi:10.1177/0954407017711320

Cited by 5 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the different transmission systems, the continuously variable transmission (CVT) system can increase the efficiency of a powertrain system significantly, as it can continuously change the speed ratio and allows the electric motor to operate around the most efficient regions [28][29][30][31]. Therefore, a CVT system improves the overall performance and motor efficiency of an electric vehicle, whilst also helping to downsize the electric motor and other energy sources [32][33][34][35][36][37][38]. Another major layout for electric vehicles is an independent in-wheel motor with/without a planetary gear.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Energy Consumption and Recovery of Autonomous Fuel-Cell Hydrogen–Electric Vehicles Using Different Powertrains Based on Regenerative Braking and Electronic Stability Control System

Yıldız

Özel

2021

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Today, with the increasing transition to electric vehicles (EVs), the design of highly energy-efficient vehicle architectures has taken precedence for many car manufacturers. To this end, the energy consumption and recovery rates of different powertrain vehicle architectures need to be investigated comprehensively. In this study, six different powertrain architectures—four independent in-wheel motors with regenerative electronic stability control (RESC) and without an RESC, one-stage gear (1G) transmission, two-stage gear (2G) transmission, continuously variable transmission (CVT) and downsized electric motor with CVT—were mathematically modeled and analyzed under real road conditions using nonlinear models of an autonomous hydrogen fuel-cell electric vehicle (HFCEV). The aims of this paper were twofold: first, to compare the energy consumption performance of powertrain architectures by analyzing the effects of the regenerative electronic stability control (RESC) system, and secondly, to investigate the usability of a downsized electrical motor for an HFCEV. For this purpose, all the numerical simulations were conducted for the well-known FTP75 and NEDC urban drive cycles. The obtained results demonstrate that the minimum energy consumption can be achieved by a 2G-based powertrain using the same motor; however, when an RESC system is used, the energy recovery/consumption rate can be increased. Moreover, the results of the article show that it is possible to use a downsized electric motor due to the CVT, and this powertrain significantly reduces the energy consumption of the HFCEV as compared to all the other systems. The results of this paper present highly significant implications for automotive manufacturers for designing and developing a cleaner electrical vehicle energy consumption and recovery system.

show abstract

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Energy Consumption and Recovery of Autonomous Fuel-Cell Hydrogen–Electric Vehicles Using Different Powertrains Based on Regenerative Braking and Electronic Stability Control System

Yıldız

Özel

2021

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…It means that the speeds, torques, and power flows in the new PST system have a more complex relationship than normal ones. Additionally, all existing computational methods for traction drive CVT [20,24,25] do not consider the complex relationship. erefore, to solve the problem, this study investigates the relationships between rotational speeds and torques in the new PST.…”

Section: Introductionmentioning

confidence: 99%

Characteristic Investigation and Torque Distribution Diagram-Based Computational Method for Continuously Variable Power-Split Transmission

Liang

et al. 2022

Mathematical Problems in Engineering

View full text Add to dashboard Cite

The key parameter of power-split transmission is the planetary ratio. To obtain various planetary ratios in one transmission system, people use complex systems with multiple planetary gear trains, clutches, and brakes. Another solution is replacing the planetary gear train with a planetary traction drive. However, the participation of the planetary traction drive brings about creep and spin motion, which increase the difficulty of precise calculation. In this study, we investigate the relationships between torques and speeds. Then, we derive the torque and speed distribution formulas that consider the influence of spin torque and creep motion. This study is the first step to precisely calculate the emerging power-split transmission with the planetary traction drive. Based on a contact model and a proposed torque distribution diagram method, this study proposes a fast computational method for calculating the performance of the new continuously variable power-split transmission. The results show that the proposed torque distribution diagram-based computational method is feasible, and the planetary traction drive can be a competitive power-split device for power-split transmission.

show abstract

“…CVTs primarily differ in the type of variator used: commonly the belt type [1][2][3][4][5][6][7][8][9][10], but also hydrostatic [11][12][13], traction [14][15][16], and electric (e-CVT) [17][18][19] ones, based on the ability of variable speed electric machines to continuously change their shaft speed from zero to an arbitrary required speed. Infinitely variable transmissions [20][21][22][23] have been successfully applied as vehicle transmission.…”

Section: Introductionmentioning

confidence: 99%

On the Feasibility of Independently Controllable Transmissions

et al. 2017

View full text Add to dashboard Cite

Abstract:The present research is carried out to determine whether the independently controllable transmission (ICTs) are able to transmit the energy/power from the arbitrary variable speed input shaft to the variable or constant speed of the output shaft, independent of each other and without a control system. For this purpose, the novel ICT proposed in this study has the required features and is simpler than those proposed so far. However, this ICT and any other proposed ICT, while being feasible from a kinematic point of view, results in the conclusion that the transmissions are practically inapplicable, as will be demonstrated from the detailed power flow analysis carried out and presented in this paper. This is because either one shaft, the so called "free shaft", has variable uncontrollable speed, or a couple of the shafts have powers close to zero.

show abstract

Experimental validation of the Carbone–Mangialardi–Mantriota model of continuously variable transmissions

Cited by 5 publications

References 35 publications

A Comparative Study of Energy Consumption and Recovery of Autonomous Fuel-Cell Hydrogen–Electric Vehicles Using Different Powertrains Based on Regenerative Braking and Electronic Stability Control System

A Comparative Study of Energy Consumption and Recovery of Autonomous Fuel-Cell Hydrogen–Electric Vehicles Using Different Powertrains Based on Regenerative Braking and Electronic Stability Control System

Characteristic Investigation and Torque Distribution Diagram-Based Computational Method for Continuously Variable Power-Split Transmission

On the Feasibility of Independently Controllable Transmissions

Contact Info

Product

Resources

About