A study on the differential gearing device with the faculty of a limited slip differential

Huh, Yong-Hak; Kim, Hyung-Ick; Shin, In Hwan; Koo, Jae-Mean; Seok, Chang-Sung

doi:10.1007/s12541-009-0052-x

Cited by 3 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The limited slip differential uses springs and plates that are placed on the outside of the sun cones and allow even and uneven power distribution on the output shafts. Hydraulic transmissions with limited slips that work on the principle of a gear pump are also being developed [5]. Because of the ability to control the amount and direction of torque transfer, these differentials are called actively controlled differentials [6].…”

Section: Introduction 1differential Transmissions Overviewmentioning

confidence: 99%

Influence of Open Differential Design on the Mass Reduction Function

Karakašić,

Konjatić,

Glavaš

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

The transmission of power and motion in road vehicles with internal combustion engines is achieved by different design variants of differential transmissions. The open differential transmission (ODT) is installed to a greater extent in passenger cars with rear-wheel drive due to its simpler design. Due to its robustness, it is possible to reduce its mass. Reducing the mass of the ODT, as well as reducing the mass of the other design elements of the vehicle, contributes to reducing the overall mass of the vehicle and improves the energy efficiency of the vehicle. The paper develops and proposes an algorithm that combines the design of the ODT according to ISO 23509:2006, the numerical calculation of the design elements (ring gear and drive shaft with pinion) using the finite element method (FEM) and the numerical global–local model, the topological optimization method (TOM) and the results of the FEM analysis in determining the design parameters. In addition, the proposed algorithm uses the application of the response surface method (RSM) in the construction of a mathematical model. With the proposed mathematical model, the mathematical objective function of the ODT overall mass reduction describes the influence of the previously selected design parameters on the overall mass reduction of the ODT. The mathematical model is also used to analyze the partial influence of the design parameters on the objective functions of the partial mass reduction of the ring gear and pinion drive shaft. Using the R2 and root mean square error (RMSE), an accuracy check of the proposed mathematical model was performed. According to the proposed algorithm and mathematical model, the two mentioned design elements of the ODT were optimized. After optimization, the overall mass of the ODM was reduced by 16.5%.

show abstract

Section: Introduction 1differential Transmissions Overviewmentioning

confidence: 99%

Influence of Open Differential Design on the Mass Reduction Function

Karakašić,

Konjatić,

Glavaš

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

Simulation of clutch actuation system for commercial vehicle

Hong

Park

Lee

et al. 2010

Int. J. Precis. Eng. Manuf.

View full text Add to dashboard Cite

NOMENCLATURE P i , P o = Release load, Clamp load t = Diaphragm spring thickness , β φ = Diaphragm spring slope, Angle displacement σ = 1 (Loading), -1 (unloading) d o = Radius between the diaphragm spring and the pressure plate contact point d i = Inner radius of the diaphragm spring d p = Radius of diaphragm spring to the pivot P c = Pressure of the inner pipeline x m , x r = Displacement of cylinderGenerally, a method of a hysteresis loop is used to show the property of the clutch system in the design process. This represents the load by a pedal travel which is a useful data for designing a vehicle for the comfort of the driver. Transfer torque of manual shift gear types for heavy duty vehicles is too high. Therefore unlike passenger car air pressure is added to the clutch system in addition to the fluid pressure. In this case it is hard to predict nonlinear element to control the hysteresis because of the addition of the components. In this paper theoretical model of the system components involving variables such as mass, stiffness and damping is developed and simulated. The results of the actual test of the clutch system are compared with simulation.

show abstract