Temat: steer-by-wire - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hydraulic circuit control of a steer by wire system
Autorzy:: Voženilek, R.
Maly, M.
Brabec, P.
Powiązania:: https://bibliotekanauki.pl/articles/245341.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: steer by wire
hydraulic circuit
control
Opis:: The future of cars will be connected with "by-wire" systems. The Technical University of Liberec, Department of vehicles and Engines has developed a design of testing equipment for directional control system testing. The objective of the newly designed equipment is to incorporate a wheel with a real tire and a flexible mounting of axle components. The paper describes properties and control of the hydraulic circuit consisting of two double-acting engines with a unilateral piston rod and two proportional valves (Parker D1FP). Each of the front axle wheels is controlled separately. The paper illustrates relationships andpotential of steer-by-wire systems at the experimental equipment. The safe and easy control of a vehicle undoubtedly poses significant requirements. Satisfying them and improving the design to enhance the vehicle's stability have always belonged to the primary objectives of designer s. Consequently, the chassis characteristics, the mechanical features of wheel suspensions, the quality of air suspensions, but also speed control (including brakes) and the vehicle 's directional control have always been emphasised. The objective of the paper was to design a steer-by-wire directional control mechanism with a suitable arrangement. The comparison focuses on various design options to arrange the action members (actuators) of this mechanism.
Źródło:: Journal of KONES; 2009, 16, 4; 477-483
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Test VDA ISO TR3888 on the testing bench for steer by wire system
Autorzy:: Voženilek, R.
Brabec, P.
Maly, M.
Powiązania:: https://bibliotekanauki.pl/articles/246243.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: steer by wire
experimental laboratory establishment
vehicle axle
Opis:: The Technical University of Liberec, Department of Vehicles and Engines, has developed a design of a testing bench which would enable the testing of directional control systems. The objective of the newly designed equipment is to incorporate a real tyre as well as aflexible mounting of the axle components into the tested system. Future of car s will be connected with systems of type steer by wire. This system need to be testing on the testing bench before real test in the car. One method for assessing can be investigation control deviation during test VDA ISO TR3888. The paper will describe measurement of the real car with conventional directional control during test VDA ISO TR3888 and simulation of the system steer by wire on the testing bench. The experimental steer by wire system forms hydraulic circuit with two double-acting hydraulic cylinders with a unilateral piston rod and two proportional valves Parker D1FP. Every wheel front of axle is control alone. The PID regulators were usedfor control of the positioning action. In particular, the testing bench for the testing of steering at zero angular speed of wheels, VDA ISO TR 3888 tests on the testing bench are presented in the paper.
Źródło:: Journal of KONES; 2010, 17, 4; 561-565
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Action of force in steering mechanisms of vehicles in an experimental laboratory establishment
Autorzy:: Brabec, P.
Maly, M.
Voženilek, R.
Powiązania:: https://bibliotekanauki.pl/articles/242204.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: steer by wire
experimental laboratory establishment
vehicle axle
Opis:: The safe and stable control ofa vehicle undoubtedly belongs to one of the most important requirements that relate to the vehicle 's design and operation. Consequently, in the near future, so called steer-by-wire systems could become the next stage in the control system development. A number of new, modern vehicles presented by car makers at important car shows definitely show how topical the issue is. If we want to create a design for this steering system, we have to know the action offorce very well. An experimental laboratory establishment for measuring and optimizing the steering system of vehicles was developed in our centre. The testing equipment is made of aluminium sections enabling the equipment to be quickly adapted to various vehicles ' axles and tyres. An exchangeable mat located under a tyre enables the system to create behaviour simulation for various surfaces with a different coefficient of adhesion. A sliding way assisted by a hydraulic jack under a tyre allows a change in axle load for example in accordance with the vehicle 's occupancy. A force sensor will be positioned between the jack and the mat to monitor the load adjustment. The testing stand design enables us to determine responses and behaviour of the system including tyres.The safe and stable control ofa vehicle undoubtedly belongs to one of the most important requirements that relate to the vehicle 's design and operation. Consequently, in the near future, so called steer-by-wire systems could become the next stage in the control system development. A number of new, modern vehicles presented by car makers at important car shows definitely show how topical the issue is. If we want to create a design for this steering system, we have to know the action offorce very well. An experimental laboratory establishment for measuring and optimizing the steering system of vehicles was developed in our centre. The testing equipment is made of aluminium sections enabling the equipment to be quickly adapted to various vehicles ' axles and tyres. An exchangeable mat located under a tyre enables the system to create behaviour simulation for various surfaces with a different coefficient of adhesion. A sliding way assisted by a hydraulic jack under a tyre allows a change in axle load for example in accordance with the vehicle 's occupancy. A force sensor will be positioned between the jack and the mat to monitor the load adjustment. The testing stand design enables us to determine responses and behaviour of the system including tyres.
Źródło:: Journal of KONES; 2009, 16, 3; 55-62
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Dynamics simulation studies on the electric city car with an electromechanical differential and the rear wheels drive
Autorzy:: Kozłowski, M.
Choromański, W.
Powiązania:: https://bibliotekanauki.pl/articles/200706.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electric city car
electromechanical differential
human driver
steer by wire system
MBS modeling
Opis:: Here we present one of the more complex models for studying the stability of driving an electric car with electromechanical differential systems. The purpose of simulation is to choose a structure of the control system for a velocity control on driven wheels (an algorithm of a differential) most appropriate for the driver. This type of goal is particularly important in the case of a disabled driver sitting in a wheelchair. The modeling takes into account both the mechanical and electric structure of the vehicle, and finally the human element - a simple model of human impact on the steer by a wire system. Modeling and simulation have used MBS package (SimMechanics). The results of the simulation have showed the best algorithms of an electromechanical differential for the velocity control of rear drive wheels: with setting a velocity difference or with an average velocity controller in the point A of the centre of a car front axle.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 3; 661-673
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Verification of hardware-in-the-loop test bench for evaluating steering wheel angle sensor performance for steer-by-wire system
Autorzy:: Pietruch, Michał
Wetula, Andrzej
Młyniec, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/2173902.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: steering wheel angle sensor
SAS
steer-by-wire
hardware-in-the-loop
virtual test drives
Opis:: In recent years, the Steer-by-Wire (SBW) technology has been gaining popularity and replacing classical steering systems. It plays the most crucial role in autonomous cars where the vehicle must perform maneuvers on its own without driver’s intervention. One of the key components of this system is the steering wheel angle sensor (SAS). Its reliability and performance may affect driver’s life and health. The purpose of this paper is to show a test system to comprehensively evaluate the performance of the steering wheel angle sensor in the SBW system during real-world maneuvers and show how SAS parameters such as accuracy of angle, angular speed etc. affect car trajectory resulting in hit cones. For this purpose, a test system was built, with the use of virtual test drives based on CarMaker software, CANoe and VTSystem hardware. In order to evaluate its performance, the errors introduced by the system were determined. Additionally, using the realised test system, three commercial steering wheel angle sensors were tested and compared during a virtual test drive. Their errors were determined, as well as their performance in the SBW technology and the consistency of the obtained results with the parameters declared by the manufacturer were verified as well.
Źródło:: Metrology and Measurement Systems; 2022, 29, 4; 639--653
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of a conceptual vehicle steering system for independent wheel control.
Autorzy:: Buchalik, R.
Powiązania:: https://bibliotekanauki.pl/articles/198227.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: steer by wire
drive-by-wire
Ackermann geometry
independent four-wheel steering
toe angle
vehicle steering
cornering control
sterowanie przewodowe
napęd-po-wire
geometria Ackermanna
niezależne sterowanie na cztery koła
kąt kąta
sterowanie pojazdem
kontrola na zakrętach
Opis:: This paper presents a brief description of an unconventional steering system involving electronic stability control and its influence on vehicle motion. The proposed configuration enables individual changes in steering angle for each single wheel, in contrast to the mechanical linkage solution. An analysis of vehicle behaviour during emergency braking on a heterogeneous surface is conducted, especially with regard to the undesirable rotation of the vehicle body. The benefits of using this active steering system, implemented in the steer-bywire mode, are characterized, while the problems for further consideration and the potential benefits of such a solution are described.
Źródło:: Zeszyty Naukowe. Transport / Politechnika Śląska; 2017, 94; 19-26
0209-3324
2450-1549
Pojawia się w:: Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:: Biblioteka Nauki

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