Method of selection of rational characteristics of switching process of automatic vehicle two-flows transmission
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2016, Vol 77, Issue 2
Abstract
In order to improve the work of automotive transmission the analysis of transients during switching gear is performed. The proposed algorithm of control gear process in double-flow transmission takes into account the different ways of managing the motor effect since the beginning of the gear, the duration of direct switching on the efficiency of acceleration of the vehicle. Different programs gear change at different values of both clutches are studied. Energy cost at switching is carried out within the framework of realization of the given vehicle program. For a single energy criterion is taken overall fuel consumption for the program motion, part of which is the fuel consumption of the equivalent work of skidding of frictional elements of both clutches when you switch power flow without breaking. Arguments are adduced that the process of the gear must not be too fast. We emphasize that there is no contradiction between optimal gear change laws in terms of fuel efficiency and dynamism. On the basis of the developed mathematical model software that allows you to explore the quality of transients when switching gears on a uniform energy selection is developed . Examples of using different methods to control the engine and double-flow transmission are given. Generally according to absolute fuel consumption, preference should be given to enhanced governance. New data are given; on their basis key areas for improvement in the management switch are identified.
Authors and Affiliations
R. Pelio
Keywords
Related Articles
- EP ID EP254006
- DOI -
- Views 126
- Downloads 0
Establishment of the effective modes of the slowdown explosion by rocks destruction at quarries
Existing for today theoretical modeling tools of the mass explosion do not fully consider the sequence and intensity of destruction of the rock mass. This leads to significant energy losses in the explosion. Therefore, t...
Border effects of the explosion of charges with соmplicated form
The peculiarities of the development of the force field around the charge of finite dimensions, which are given a complex form, are considered. The data of computer simulation indicate the superiority of the triangular c...
Information technology and hardware-software complex for monitoring the state of biological fluid samples
The article deals with the development of information technology for monitoring and diagnostics of the state of liquid biological samples. The method is proposed on the basis of factor analysis caused by an information e...
Identification of computer graphics objects
The article is devoted to the use of computer graphics methods in problems of creating drawings, charts, drafting, etc. The widespread use of these methods requires the development of efficient algorithms for the identif...
Impact on the engine power of a wheeled vehicle mechanical losses when the cylinders are disconnected
A technique for calculating mechanical losses is proposed, which makes it possible, with an accuracy of about 10 %, to determine the effect of the number of disconnected cylinders on the effective engine power, the power...