What?

Clutch Operating system

THE INFLUENCE OF THE CLUTCH OPERATING SYSTEM PARAMETERS ON THE CSC STROKE

This project investigates how clutch operating system parameters impact the Concentric Slave Cylinder (CSC) stroke. By analyzing factors such as hydraulic pressure, pedal force, and fluid dynamics, the study aims to optimize system performance, enhance durability, and improve overall vehicle operation through advanced modeling and experimental validation.

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Clutch Operating System.1
How?

The influence of clutch operating system parameters on the CSC stroke was effectively demonstrated using the innovative Skeleton Design technique. This groundbreaking approach revolutionized analysis by significantly enhancing precision, optimizing efficiency, and improving system performance evaluation, offering a streamlined methodology for addressing complex engineering challenges with greater accuracy and speed.

Skeleton Design simplifies models, enabling faster analysis and innovation.

How to use Skeleton Method?

Geometrical elements such as curves, axis,​ points, planes, and surfaces are stored in the​ skeleton.​

These are used either to:​

  • Design the other components of the product by creating external references pointing to the skeleton.​
  • Position constraints between the skeleton​ and other components of the product.​

 

Why use Skeleton Method?

  • Specification-driven design​
  • Design changes​
  • Collaborative design​
  • Avoid update loops
Results

The clutch system parameters significantly affect the CSC stroke, influencing clutch engagement and disengagement. Ratios amplify force and dimensional changes, requiring an optimal pedal ratio for balanced stroke and force. The hydraulic ratio is critical; short strokes risk incomplete disengagement, while excessive strokes may damage the diaphragm disc, ensuring reliability.

Conclusions of the study and personal improvements during this internship.

  • The impact of different parameters used in the clutch system is directly visible at the CSC stroke and can influence the clutching and declutching.
  • The ratios not only multiply the effects of force; they also multiply the effect of dimensional changes within the clutch system.​
  • The pedal ratio must be correct to have neither a very long nor a very short stroke but also a specific force to the CSC​
  • The hydraulic ratio radically influences the stroke of the CSC, if the stroke is too short there is a risk that the clutch will not disengage, if the stroke is too long there is a risk of the diaphragm disc breaking.​
Informations

When?

 

This was an internship that I did during March – May 2021 at Renault Group, being a student at the University of Pitesti, Faculty of Mechanics and Technology.

 

Where?

 

Dacia Business Center brings together all Renault Group and Dacia entities in Bucharest in one space.

 

The headquarters is made up of two buildings:

  • Building A which houses the engineering center, Renault Technologie Roumanie; Renault Commercial Roumanie (car sales), Global Business Services (business services), RCI Bank & Services and support functions such as: Human Resources, Communication, IT/S, Quality, Legal, Financial, Purchasing and Administrative.
  • Building B (located behind building A) where Dacia Design Center Bucharest and Atelierele de Inginerie Bucharest (AIB) are located.