1,720,989 research outputs found
Linear Parameter-Varying state feedback synthesis with hierarchical performance requirements
No full textMetodo e sistema per il controllo di stabilità di un veicolo a due ruote mediante sospensione elettronicamente modulabile
No full textLa presente invenzione riguarda un metodo ed un sistema per il controllo della stabilità di un veicolo a due ruote, quale in particolare una motocicletta, agendo sulle forze erogate dalle sospensioni anteriore e posteriore
Metodo di rilevamento di ostacoli da applicare ad un'anta a movimento orizzontale o pivotante attorno ad un'asse verticale
No full textA mixed frequency/time-domain method to evaluate the performance of semi-active steering damper control strategies during challenging maneuvers
No full textThis work presents the validation of control strategies for
a semi-active steering damper aimed at improving the stability
of two-wheeled vehicles by controlling the weave and wobble
modes. A mixed frequency/time-domain method is introduced
to evaluate the performance of the control strategies. The proposed
cost functions allow one to evaluate the influence of the
algorithms on the damping of the weave and wobble modes and
also the overall performance in terms of stability of the steering
assembly and of the chassis. The performance of the control
algorithms is assessed on a multibody motorcycle simulator considering
three challenging maneuvers that excite both the weave
and wobble modes, such as kick-back and strong braking while
cornering at high speed
Optimal design of experiment for the identification of throttle-to-slip dynamics in two-wheeled vehicles
No full textA comparison between model-based and data-driven design of an active stability control system for two-wheeled vehicles
No full textThe design of an active stability control system for twowheeled
vehicles is a fully open problem and it constitutes a
challenging task due to the complexity of two-wheeled vehicles
dynamics and the strong interaction between the vehicle and the
driver. This paper describes and compares two different methods,
a model-based and a data-driven approach, to tune a Multi-
Input-Multi-Output controller which allows to enhance the safety
while guaranteeing a good driving feeling. The two strategies are
tested on a multibody motorcycle simulator on challenging maneuvers
such as kick-back and strong braking while cornering at
high speed
Control-Oriented Modeling of Motorcycle Dynamics
No full textRecent technology advances in the field of ride-by-wire technology for motorcycle (namely active braking and full electronic throttle) open the way to the design of innovative control strategies to improve two-wheeled vehicles stability. As such, it is of growing importance to devise control oriented models of the bike dynamics to be employed for control design purposes. This paper proposes an analytical model of a two-wheeled vehicle tuned to capture the coupling between longitudinal variables (i.e. traction and braking torque) and out-of-plane modes. The model is derived from first principles. The model parameters are identified from a complete multi-body simulator. The proposed model offers a good tradeoff between complexity and accuracy.QC 20131211</p
Enhancing active safety of two-wheeled vehicles via electronic stability control
No full textIn four-wheeled vehicles, electronic stability control (ESC) was introduced in the recent past to improve passengers safety in critical driving conditions and it is now part of most commercial cars. For two-wheeled vehicles, the design of such a control system is an open problem, and it constitutes quite a challenging task due to the complexity of two-wheeled vehicles dynamics and to the strong interaction between the vehicle and the driver. This paper describes an innovative control architecture which allows us to enhance the active safety while guaranteeing a good driving feeling. The proposed solutions are validated on a multibody motorcycle simulator on challenging maneuvers such as kick-back and strong braking while cornering at high speed
Single-Sensor Control Strategies for Semi-Active Steering Damper Control in Two-Wheeled Vehicles
No full textRecent research has led to the design of effective steering control strategies that employ, as controlled variables, the steering velocity and the yaw rate. The yaw rate can be measured by an inertial platform, which is usually already installed on modern motorcycles for advanced traction and braking control systems. Thus, there is an interest in developing effective steering angle estimators to implement single-sensor control strategies without introducing any additional cost for the semi-active steering damper control system. This paper proposes a robust minimum variance linear time-invariant filter and a linear parametrically varying observer to estimate the steering angle based on yaw rate and vehicle speed measurements, the performance of which is compared both via simulation and experimental data. The closed-loop performance of the single-sensor control strategies is finally evaluated and compared with that obtained with the two-sensor algorithm
- …
