نتایج جستجو برای: Split CVT

تعداد نتایج: 49799  

2012
Tomas Nilsson Anders Fröberg Jan Åslund

Wheel loader transmissions are commonly based on a torque converter and an automatic gearbox. This solution is mechanically robust and well suited for the typical operation of the machine, but the fuel efficiency is low at some modes of operation. One proposed improvement is to replace the present transmission with a multi-mode power-split CVT (MM-CVT). This paper compares the fuel saving poten...

This paper aims to find the efficient state of hybrid electric vehicle (HEV) by simultaneous optimization of the control strategy and the power train. The power transmission employed in this vehicle is a power-split continuously variable transmission (CVT) which uses several fixed ratio mechanisms. After describing this transmission, the rules of electric assist control strategy are introduced....

2010
L. Jian K. T. Chau

This paper proposes a new electronic-continuously variable transmission (E-CVT) system for power-split hybrid electric vehicles (HEVs). The key is to integrate two permanent magnet motor/generators (M/Gs) together with a coaxial magnetic gear (CMG). By designing the modulating ring of the CMG to be rotatable, this integrated machine can achieve both power splitting and mixing, and therefore, ca...

2011
Horst Schulte Patrick Gerland

Power-split continuously variable transmissions (CVTs) represent a promising technology to improve the fuel economy of high-power off-road vehicles such as construction and agricultural machines. There are capable of keeping the combustion engine running within the optimal range in terms of fuel economy and performance. Power-split CVTs are a very specific type of CVT because this kind of trans...

2013
Gary T Ferguson Mo Ghafouri Luyan Dai Leonard J Dunn

BACKGROUND Ipratropium bromide/albuterol Respimat inhaler (CVT-R) was developed as an environmentally friendly alternative to ipratropium bromide/albuterol metered-dose inhaler (CVT-MDI), which uses a chlorofluorocarbon propellant. OBJECTIVE The objective of this study was to evaluate patient satisfaction, device usage, and long-term safety of CVT-R compared to CVT-MDI, and to the simultaneou...

2017
Ava L. Liberman Alexander E. Merkler Gino Gialdini Steven R. Messé Michael P. Lerario Santosh B. Murthy Hooman Kamel Babak B. Navi

Cerebral venous thrombosis (CVT) often affects young patients and can result in substantial disability and death. Though mortality rates among patients with CVT have declined, new epidemiological data suggests a higher annual incidence of CVT than previously reported. A diagnosis of CVT is associated with subsequent risk of venous thromboembolism, including deep vein thrombosis (DVT), pulmonary...

Mohsen Esfahanian, Mohsen Nikbin

This paper investigates the effectiveness of using CVT (Continuous Variable Transmission) in Samand automobile.  For this analysis, the conventional Samand and a Samand equipted with CVT are modeled and simulated by using Simulink based software (ADVISOR) and the performances are compared.  This analysis includes the effect of driving cycle, fuel consumption and the efficiency of components of ...

2017
Jiahui Liang Hongbing Chen Zhuhao Li Shaofu He Boning Luo Shujin Tang Wenjin Shang Jinsheng Zeng

BACKGROUND Cortical vein thrombosis (CVT) receives little attention in adult patients with cerebral venous sinus thrombosis (CVST). This study aimed to investigate the clinical and radiological features of adult CVST patients with concomitant CVT. METHODS From May 2009 to May 2016, we recruited 44 adult CVST patients (diagnosed within 1 month of onset; 33.8 ± 14.0 years of age, 28 males). CVT...

2015
Xin Ma Xun-Ming Ji Paul Fu Yu-Chuan Ding Qiang Xue Yue Huang

BACKGROUND Cerebral venous thrombosis (CVT) may lead to serious neurological disorders; however, little is known about the risk factors for recurrent CVT. Our aim was to determine the association between elevated fibrinogen and decreased high-density lipoprotein cholesterol (HDL-C) levels with recurrent CVT. METHODS This retrospective cohort study included participants if they had a first epi...

2009
GUANG-RI PIAO QIANG DU HYUNG-CHUN LEE H.-C. LEE

In this article, we consider a weighted CVT-based reduced-order modelling for Burgers equation. Brief review of the CVT (centroidal Voronoi tessellation) approaches to reduced-order bases are provided. In CVT-reduced order modelling, we start with a snapshot set just as is done in a POD (Proper Orthogonal Decomposition)-based setting. So far, the CVT was researched with uniform density (ρ(y) = ...

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