Automotive Transmission Gearbox Synchronizer Sintered Hub Design

Barathiraja, K; Devaradjane, G.; Bhattacharya, Anup; Sivakumar, V.; Yadav, Vivek

doi:10.1016/j.engfailanal.2019.104213

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…Completion of passenger car gearbox assemblies is illustrated in Fig. 9, which shows a model representation of the transmission unit under study and was made in a simulation software environment [51][52][53][54][55][56].…”

Section: Resultsmentioning

confidence: 99%

Automating the Assembly Process of Passenger Car Gearboxes

Filatov¹

2022

AJRCoS

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Aims: The study aims to identify ways and potential solutions to automate the assembly and production process for passenger car gearboxes. Object of Research: Assembly and production process for car gearboxes. Subject of Research: Modern and evolutionary automation tools that have the potential to be implemented in the assembly processes of automotive transmission controls. Methodology: To achieve this goal, as part of this study, it is planned to apply methods of bibliometric analysis of leading scientometric databases to obtain correlation relationships and analytical conclusions regarding the vector of development of automation means of passenger car gearbox assembly process. Results: As a result of the research by means of scientometric analysis and correlation the vector of probabilistic technical solutions of integration and development of automation means of the sequence of production operations during the assembly of the transmission, as well as adaptive framework-design solutions for the implementation of tools of the fourth iteration of industrial-industrial progress in the production processes of assembly of the studied technical control means and logical-technological connection of the elements of the transmission system, which affect the overall process of automotive manufacturization. Conclusion: The passenger car gearbox is a multi-component, complex system whose assembly is a complex multi-operational process, and given the high responsibility of this machine element, there is an urgent need to introduce modern automation tools into the assembly and production processes, which will significantly optimize global automatofactoring. The practical results of the present study consist in the formation of a focus scientometric database of profile data, identification of a potential vector of development of means and systems of automation of assembly-production operations, identification and formation of solutions for the implementation of modern means of automated production in the actual global automotive manufacturing, which allows to get the optimum ratio of production costs/quality of products by improving the manufacturability, productivity and flexibility of processes of assembly of multi-element and multi-component automotive systems and structures.

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Section: Resultsmentioning

confidence: 99%

Automating the Assembly Process of Passenger Car Gearboxes

Filatov¹

2022

AJRCoS

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“…However, the friction-based mechanism in synchronizers limits their lifespan, posing challenges for heavy-duty use, where a long lifespan is required. The challenges come from limitations of materials strength and manufacturing technology [11,12].…”

Section: Introductionmentioning

confidence: 99%

Dynamical model for dog clutch shiftability

Aljawabrah,

Lovas

2024

IRASE

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The dog clutch offers advantages in mass and efficiency, but faces challenges in mismatch speed synchronization, which affects its shiftability. Face impact between dog teeth also reduces its lifespan. Our previous work introduced the kinematical shiftability condition that ensures impact-free gearshift but had limitations due to analysis assumptions. This study eliminates those assumptions, but uses a similar approach. Based on our previous work for dog clutch engagement dynamics, we develop the dynamical shiftability condition. Validation with full dog clutch dynamics showed an agreement. Employing another previous work that introduced shiftability map and parametric study method, we study system parameters impact on shiftability but based on the dynamical shiftability condition.

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“…However, the speed synchronization mechanism needs a long service life for heavy-duty-or commercial-vehicles. As a result, the synchronizer cannot be widely used in heavy-duty vehicles due to the limitations of materials strength and manufacturing technology [11,12]. Automatized manual transmission (AMT) has been used in heavy-duty vehicles due to its great transmission torque, high transmission efficiency, and low manufacturing and maintenance costs [13,14].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling of the Dog Clutch Engagement Process Using Hybrid Automata

2023

jjmie

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A detailed system dynamics model is essential for the design and calibration of the system controller. This paper introduces a control-oriented full dynamic model for the dog clutch engagement process that can be integrated with other system dynamic models found in ground vehicle transmission systems, such as the shifting mechanism system. This integrated model can be used later to design a position controller of the shifting mechanism's linkages to achieve a successful gearshift process. The engagement process is divided into four main stages, each of which has distinct dynamic behavior. The dynamics of each discrete stage are analyzed and modeled, and then, the discrete stages are integrated into one model using the hybrid automata modeling technique. Hybrid automata enables us to describe the continuous states within the discrete stages, which is better than continuous time techniques. The possible interactions between the sliding sleeve and the gear are analyzed and based on these interactions, the transition paths' conditions between these stages are established. The hybrid automata model comprises four discrete stages and ten guards that govern the transition between these stages. This model was simulated using Simulink State flow. Three cases are considered to verify the model, and the results showed that it could accurately capture the continuous system dynamics despite four discrete states. Furthermore, the transitions between the discrete states match the possible transition paths and guards.

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Automotive Transmission Gearbox Synchronizer Sintered Hub Design

Cited by 7 publications

References 6 publications

Automating the Assembly Process of Passenger Car Gearboxes

Automating the Assembly Process of Passenger Car Gearboxes

Dynamical model for dog clutch shiftability

Dynamic Modeling of the Dog Clutch Engagement Process Using Hybrid Automata

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