Ditemukan 5 dokumen yang sesuai dengan query
Jazar, Reza N.
Abstrak :
This book covers the principles and applications of vehicle handling dynamics from an advanced perspective in depth. The methods required to analyze and optimize vehicle handling dynamics are presented, including tire compound dynamics, vehicle planar dynamics, vehicle roll dynamics, full vehicle dynamics, and in-wheel motor vehicle dynamics. The provided vehicle dynamic model is capable of investigating drift, sliding, and other over-limit vehicle maneuvers. This is an ideal book for postgraduate and research students and engineers in mechanical, automotive, transportation, and ground vehicle engineering.
Covers many applications of vehicle handling dynamics from an advanced perspective;
Broadens readers understanding of the mathematical prediction of the dynamic behavior of vehicles for full vehicle models;
Reviews the required methods to analyze and optimize vehicle handling dynamics, including vehicle planar dynamics, full vehicle dynamics, vehicle roll dynamics, and more.
Switzerland: Springer Nature , 2019
e20505599
eBooks Universitas Indonesia Library
Dicky Okta Rizaldi
Abstrak :
Sudut sideslip sangat berperan penting dalam kendali stabilitas kendaraan, namun sudut sideslip pada kendaraan yang di produksi tidak dapat ditentukan secara langsung menggunakan sensor dengan mempertimbangkan biaya sensor. Penting untuk memperkirakan sudut sideslip secara tidak langsung dengan menggunakan parameter gerak yang ada pada kendaraan. Oleh karena itu, algoritma estimasi dengan kinerja dan akurasi real-time sangat penting. Metode estimasi berdasarkan algoritma kalman filter sesuai saat kendali kendaraan dalam kondisi linear. Namun, pada jalan adhesi yang rendah, kendaraan memiliki karakteristik nonlinear. Dalam penelitian ini, algoritma extended kalman filter digunakan dengan mempertimbangkan karakteristik nonlinear dan diverifikasi oleh simulasi dengan Carsim dan Simulink. Hasil yang diharapkan dari penelitian ini adalah menunjukkan sudut sideslip kendaraan yang diperoleh dengan algoritma extended kalman filter lebih tinggi daripada yang diperoleh kalman filter di daerah nonlinear.
......The sideslip angle plays an important role in vehicle stability control, but the sideslip angle on the production vehicle can not be determined directly using the sensor by considering the cost of the sensor. It is important to estimate the side slip angle indirectly by using the motion parameters present in the vehicle. Therefore, the estimation algorithm with performance and real time accuracy is very important. The estimation method based on the filter kalman algorithm is appropriate when vehicle control is in linear condition. However, on a low adhesion path, the vehicle has nonlinear characteristics. In this study, the extended kalman filter algorithm is used taking into nonlinear characteristics and verified by simulations with Carsim and Simulink. The expected result of this study is to show the estimated vehicle sideslip angle with the extended kalman filter algorithm higher than estimated by the kalman filter in the nonlinear region.
Depok: Fakultas Teknik Universitas Indonesia, 2018
S-Pdf
UI - Skripsi Membership Universitas Indonesia Library
Fahmi Fadilah
Abstrak :
ABSTRAK
Perkembangan teknologi otomotif semakin pesat, tidak hanya pada perkembangan mekanik dan perkembangan sistem elektrikal, namun pengaturan dinamika pergerakan mobil juga turut berkembang seiring meningkatnya penggunaan kendaraan listrik electric vehicle . Vehicle Dynamic Control VDC merupakan salah satu teknologi yang berkembang dengan tujuan memperbaiki dinamika kendaraan lewat sistem distribusi torsi ke roda demi tercapainya kenyamanan dan kestabilan saat berkendara. Namun sifat dinamika kendaraan yang tidak linear dalam distribusi gayanya membuatnya sulit untuk dikendalikan. Oleh karena itu, dalam penelitian ini dirancang Vehicle Dynamic Control yang berfungsi untuk mengendalikan Yaw Rate dan kecepatan lateral. Yaw Rate dan kecepatan lateral dihitung berdasarkan beberapa parameter, diantaranya sudut stir, slip, dan torsi. Hasil perhitungan Yaw Rate dan kecepatan lateral kemudian digunakan untuk menghitung kompensasi torsi oleh pengendali prediktif sehingga kestabilan dapat terjaga. Uji simulasi VDC dilakukan dengan menggunakan beberapa skenario jalan untuk melihat keandalan sistem VDC. Hasil dari penelitian ini adalah tercapainya performa kestabilan yang baik secara lateral, yaitu nilai kecepatan lateral dan yaw rate yang dapat mengikuti nilai referensi.
ABSTRACT
The development of automotive technology is get ahead, not only on the development of mechanical and electrical systems, but the dynamics control of movement of cars also develop along with the increasing use of electric vehicles EV . Vehicle Dynamic Control VDC is one of the technology developed, the purpose of VDC is to improve the dynamics of the vehicle through the intervention of the braking and traction systems to achieve comfortability and stability when driving. However, vehicle dynamics have non linear characteristic in torque distribution make it hard to be controlled. Therefore, in this study will be analyzed and designed Vehicle Dynamic Control which works by yaw rate and lateral velocity. which is calculated based on several parameters, such as steer angle, slip, and torque. Yaw Rate and lateral velocity respons then used to calculate the compensation torque by predictive controller so that stability can be maintained. Simulation test of VDC is done using several schemes to prove the ability of VDC system. The result of this study is a stable performance in laterally, which means that the lateral velocity and yaw rate will follow the reference value.
2017
S67030
UI - Skripsi Membership Universitas Indonesia Library
Ahmad Shobri
Abstrak :
ABSTRAK
Keselamatan dalam berkendara sangat dikembangkan oleh industri otomotif. Salah satu komponen yang memegang peranan penting dalam memberikan keselamatan bagi pengemudi saat berkendara adalah Vehicle Dynamics Control. Sistem ini biasa dikenal juga sebagai Vehicle Dynamics Control atau Electronic Stability Control semua jenis sistem ini diaplikasikan dalam sistem kendali untuk keselamatan dan berbeda nama sesuai industri otomotif yang membuatnya.Sistem VDC ini berfungsi ketika pengemudi yang sedang melaju cepat di jalanan meliku dan melakukan over steering dan under steering, mobil tetap dalam kestabilan tidak sampai menabrak sampai terbalik. Pada penelitian ini dibuat pengendalian mobil dengan cara mendeteksi dan menimalisir slip yang diberikan oleh torsi pada setiap ban menggunakan pengendali prediktif bertingkat. Sehingga ketika pengemudi kehilangan kontrol pengendalian maka dengan otomatis maka system ini akan melakukan pengereman secara otomatis. Pengereman otomatis akan berdasarkan perhitungan yaw rate kemudian memberikan perintah langsung ke masing masing roda. Roda depan akan mencegah terjadinya oversteer dan roda belakang akan mencegah terjadinya understeer.
ABSTRACT
Safety in driving highly developed by the automotive industry. One of the components that play an important role in providing safety for the driver while driving is the Vehicle Dynamics Control. This system is commonly known as Vehicle Dynamics Control or Electronic Stability Control all types of systems applied in control systems for safety and a different name as the automotive industry. The VDC system is functioning when the driver speeding on the street turn and perform over steering and under steering, the car remains in the stability not until crashing to the upside. This research is making the car control by detecting and minimizing slip given by the torque on each tire with multistage predictive controller . So that when the driver lost control then automatically controls the system will do the braking automaticly. The braking based on the calculation yaw rate then gave direct orders to each wheel. The front wheels will prevent oversteer and the rear wheels will prevent understeer.
2017
S67903
UI - Skripsi Membership Universitas Indonesia Library
Pacejka, Hans B.
Abstrak :
The definitive book on tire mechanics by the acknowledged world expert Covers everything you need to know about pneumatic tires and their impact on vehicle performance, including mathematic modeling and its practical application Written by the acknowledged world authority on the topic and the name behind the most widely used model, Pacejka's 'Magic Formula' Updated with the latest information on new and evolving tire models to ensure you can select the right model for your needs, apply it appropriately and understand its limitations In this well-known resource, leading tire model expert Hans Pacejka explains the relationship between operational variables, vehicle variables and tire modeling, taking you on a journey through the effective modeling of complex tire and vehicle dynamics problems. Covering the latest developments to Pacejka's own industry-leading model as well as the widely-used models of other pioneers in the field, the book combines theory, guidance, discussion and insight in one comprehensive reference. While the details of individual tire models are available in technical papers published by SAE, FISITA and other automotive organizations, Tire and Vehicle Dynamics remains the only reliable collection of information on the topic and the standard go-to resource for any engineer or researcher working in the area. New edition of the definitive book on tire mechanics, by the acknowledged world authority on the topicCovers everything an automotive engineer needs to know about pneumatic tires and their impact on vehicle performance, including mathematic modelling and its practical applicationMost vehicle manufacturers use what is commonly known as Pacejka's 'Magic Formula', the tire model developed and presented in this book.
Amsterdam: Elsevier , 2012
629.248 2 PAC t
Buku Teks Universitas Indonesia Library