Original scientific paper

https://doi.org/10.17559/TV-20240422001483

Impulse Shock Analysis of DMF Timing Ring in Vehicle Curb Crash Condition

Çağlar Imer ; Research & Development Center, Valeo Automotive Systems, 16245, Osmangazi, Bursa, TURKEY
Mehmet Onur Genç orcid.org/0000-0003-0332-1785 ; Department of Mechatronics Engineering, Bursa Technical University, 16310, Yıldırım, Bursa, TURKEY *

* Corresponding author.

Abstract

The design of the powertrain components by considering inertial properties is important for sustainability and lightness. The highest shock impulses cause the instant negative transient torque proportional to the system inertia and acceleration. In this study, the vehicle having the Double Mass Flywheel (DMF) system subjected to a specific curb obstacle is investigated experimentally in an urban driving profile. The LTI (Linear-Time-Invariant) system of the crash mechanism in vehicle systems is presented as one-dimensional and three-dimensional models. The free-body-diagram (FBD) is presented in the curb crash condition, and the obtained equation of motion is then correlated via curb crash analysis and experimental test results. The analysis is performed firstly in curb crash explicit analysis, then the system modeling with the mathematical powertrain model approach is obtained via one-dimensional modeling to find the effective impact torque on the timing ring. Then, the component-based design is analyzed and correlated with real experimental test results. The experimental Timing ring removal test is then correlated with the curb crash explicit model representing the full vehicle. Thus, the obtained minimum Timing Ring slipping torque presents the required urban safety DMF production process needs. The impulse shock analysis of DMF timing ring due to curb crashes is presented, and preventive methods are indicated by considering urban driving profile conditions.

Keywords

powertrain lightening; powertrain shock impulse; state-space model; system modeling; timing gear slipping torque

Hrčak ID:

321900

URI

https://hrcak.srce.hr/321900

Publication date:

31.10.2024.

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