학위논문 (석사)-- 서울대학교 대학원 : 전기·컴퓨터공학부, 2015. 8. 이창건. ; In the vehicle industry, shift quality is a major factor to evaluate the performance of a transmission unit. Following by the electric control units like ECU (Engine Control Unit) and TCU (Transmission Control Unit) took important role in the vehicle transmission, the computational parameters in the control units also took the key role to determine a shift quality. To find a set of optimal parameters, trial-and-error technique is most famous in the field. However the technique requires human experience for efficient and qualified parameter search. To generalize the quality and search time, there is a certain demand on the automation of parameter search. The studies for automated calibration of automatic transmission system for shift quality have been placed in the automobile field. Actual vehicle and Dynamometer are used to automate the system, and they are based on the technique called Design of Experiment. Since the vehicle transmission systems are complex, exhaustive search technique is not proper to solve the problem. Design of Experiment limited parameters to handle only key factors. However the technique still requires human experience at the design level. In this thesis, we propose a genetic algorithm based transmission parameter search method for a vehicle transmission system. In the pre-process phase, learn each parameter’s effect on the target shift quality to avoid the dependency on human experience. Global search with genetic algorithm approach and local optimization is implemented. Simulink based vehicle simulator is used for experiment. ; 1. Introduction 1 2. Related Work 5 3. Background and Problem Description 7 3.1 Simulink Vehicle Simulator 7 3.2 Clutch System 7 3.3 Genetic Algorithm 8 3.4 Design of Experiment 9 3.5 Problem Description 10 4. Proposed Solution 14 4.1 Existing Solution 14 4.2 Our Approach 15 5. Experiment 23 6. Conclusion and Future Work 27 7. References 28 ; Master


    Access

    Download


    Export, share and cite



    Title :

    An Automated Parameter Search Method for Vehicle Transmission System



    Publication date :

    2015-01-01


    Type of media :

    Theses


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



    System and method for automated parking availability search including vehicle characteristics

    WHIKEHART JOHN WILLIAM | European Patent Office | 2020

    Free access

    AUTOMATED MANUAL TRANSMISSION FOR VEHICLE

    European Patent Office | 2018

    Free access

    AUTOMATED VEHICLE PARAMETER MODIFICATION BASED ON OPERATOR OVERRIDE

    LEWIS MATTHEW J / LAUR MICHAEL H | European Patent Office | 2016

    Free access

    AUTOMATED VEHICLE PARAMETER MODIFICATION BASED ON OPERATOR OVERRIDE

    LEWIS MATTHEW J / LAUR MICHAEL H | European Patent Office | 2021

    Free access

    VEHICLE SEARCH SYSTEM, VEHICLE SEARCH METHOD, AND VEHICLE SEARCH PROGRAM

    HORI TAKASHIGE / TAKAMI KATSUNORI | European Patent Office | 2019

    Free access