Properties and sizing methods of 2-motor transmissions

Paoluzzi, R.; Zarotti, Luca G.

doi:10.1080/14399776.2016.1234873

Cited by 2 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The basic HT layout, consisting of one primary and one secondary unit, has indeed very limited regulation flexibility for addressing system efficiency. This was already commented by Paoluzzi and Zarotti in the work previously cited [6], and an aspect they further addressed in their more recent work [24] where they discussed simple modification to the basic architecture by acting on the number of primary and secondary units. This latter work presented three different improvement designs to expand the working range of HTs and to further expand the sizing method first presented in [6].…”

Section: Design Of Reference Ht Systemmentioning

confidence: 82%

Advanced Design and Optimal Sizing of Hydrostatic Transmission Systems

Guo

Vacca

2021

Actuators

View full text Add to dashboard Cite

This paper presents a novel method for designing and sizing high-efficient hydrostatic transmissions (HTs) for heavy duty propulsion applications such as agricultural and construction machinery. The proposed method consists in providing cost effective HT architectures that maximizes efficiency at the most frequent operating conditions of the transmission, as opposed to the traditional HT design methods based on the most demanding requirements of the system. The sizing method is based on a genetic optimization algorithm for calculating the optimal displacement of the main units of the HT to maximizes the efficiency in the most frequent operating conditions of the vehicle. A simulation model for HTs is built in MATLAB/Simulink® environment to test three different circuit alternatives for basic HTs. Considering a particular 250 kW heavy-duty application for which drive cycle data were available, this study shows great improvement in energy efficiency (14%) and power saving (20.1%) at frequent operating conditions while still achieving the corner power condition.

show abstract

Section: Design Of Reference Ht Systemmentioning

confidence: 82%

Advanced Design and Optimal Sizing of Hydrostatic Transmission Systems

Guo

Vacca

2021

Actuators

View full text Add to dashboard Cite

show abstract

“…See for instance the sizing methods proposed in [56] and [57]. This is in particular useful for smaller machines based on sourced driveline components and with fewer modes and less design freedom.…”

Section: Preliminary Sizingmentioning

confidence: 99%

Conceptual Design of Complex Hydromechanical Transmissions

Uebel¹

View full text Add to dashboard Cite

This thesis explores the conceptual design process of complex hydromechanical transmissions for mobile working machines. Efficient methods for design optimisation and controller development are presented to support the final concept selection.In the endeavour to develop new fuel-efficient driveline solutions for construction machines and off-road equipment new complex hydromechanical transmission concepts are being investigated. This pursuit is driven by stricter emission legislation, high fuel prices and a desire for a greener image both for customers and manufacturers. The trend towards more complex transmission architectures increases the need for more sophisticated product development methods. Complex multiple-mode transmissions are difficult to design and prototype and can be realised in a great number of architectures. By introducing a secondary energy storage in the machine the design space expands further for both hardware and software. There is accordingly a need for more reliable concept assessment in early design stages and the possibility to support concurrent engineering throughout the development process.Previous research on the design and development of hydromechanical transmissions has been limited to analysis of fixed concept designs or design optimisation using very simple performance indicators. Existing methodologies for electrified on-road vehicles are not suitable for off-road working machines with hydromechanical transmissions and hydraulic energy storage.The proposed conceptual design process uses detailed quasi-static simulation models and targets to optimise the fuel efficiency of the specific machine specifications and operations. It is also shown how high-speed dynamic simulations can be used for controller development and hardware-in-the-loop simulations to support an efficient product design process. The methods are demonstrated for typical use cases targeting new transmission development for construction machines. Software control development is also treated using control optimisation and real-time simulation. Finally a novel hybrid hydromechanical motion system is presented for which an efficient design process is crucial to its end performance. i ii Populärvetenskaplig SammanfattningI denna avhandling presenteras nya metoder för utveckling av energieffektiva transmissioner för tunga arbetsfordon och entreprenadmaskiner. Genom att kombinera numerisk optimering av hårdvara och mjukvara tillsammans med detaljerade simuleringar av maskinens bränsleförbrukning kan designprocessen göras mer effektiv.Idag finns det en trend mot utveckling av nya energieffektiva hydraulmekaniska transmissioner och hybridisering av mobila arbetsfordon som exempelvis hjullastare, skogsmaskiner och jordbrukstraktorer. Motiven är bland annat höga bränslekostnader, hårdare lagstiftning på utsläpp och företagens önskan om en grönare profil. En hydraulmekanisk transmission kombinerar hydraulisk och mekanisk effektöverföring och har kontinuerligt varierbar utväxling som möjliggör en effektivare framdrivn...

show abstract

Properties and sizing methods of 2-motor transmissions

Cited by 2 publications

References 3 publications

Advanced Design and Optimal Sizing of Hydrostatic Transmission Systems

Advanced Design and Optimal Sizing of Hydrostatic Transmission Systems

Conceptual Design of Complex Hydromechanical Transmissions

Contact Info

Product

Resources

About