Authors: Amedeo Tesi, Francesco Vinattieri, Renzo Capitani, Claudio Annicchiarico The Electro actuated Limited Slip Differential (e-LSD) can help increasing the dynamic features of the vehicle, but to implement a well designed control logic it is necessary a deep knowledge of the actual friction …

Authors: Francesco Vinattieri, Tim Wright, Renzo Capitani, Claudio Annicchiarico, Giacomo Danisi The adoption of Electrical Power Steering (EPS) systems has greatly opened up the possibilities to control the steering wheel torque, which is a critical parameter in the subjective and objective evaluation of a new …

Authors: Amedeo Tesi, Emanuele Galvanetto, Claudio Annicchiarico, Renzo Capitani The wear phenomenon in friction clutches involves a variation in the contact pairs characteristics, defining a decay of transmissible torque properties. For multidisk clutch packs installed in electro-actuated differentials, the friction torque evolution allows …

Authors: Andrea Pulcinelli, Luca Pugi, Francesco Vinattieri, Renzo Capitani, Claudio Annicchiarico The performance of semi-active differential systems is deeply influenced by the way in which they are actuated. Conventional semi-active systems are actuated by pressure-controlled hydraulic actuators that, despite their good dynamical behaviour, are …

Authors: Tommaso Novi, Renzo Capitani, Claudio Annicchiarico Vehicle dynamics stability control systems rely on the amount of so-called sideslip angle and yaw rate. As the sideslip angle can be measured directly only with very expensive sensors, its estimation has been widely studied …

Authors: Cesare Certosini, Francesco Vinattieri, Renzo Capitani, Claudio Annicchiarico Driving simulators have boosted the vehicle design with the introduction of human beings in the simulation loop. For a realistic functioning, the steering system must provide an accurate behaviour, since the hand wheel is …

Authors: Tommaso Novi, Carlo Carcasci, Cesare Certosini, Renzo Capitani, Claudio Annicchiarico A semi-active differential (SAD) is a device which allows the flaws of a standard limited slip differential (LSD) to be overcome in terms of how they affect vehicle dynamics. This is possible by …

Authors: Tommaso Novi, Alexander Liniger, Renzo Capitani, Marco Fainello, Giacomo Danisi, Claudio Annicchiarico Traditional vehicles are designed to be inherently stable. This is typically obtained by imposing a large positive static margin (SM). The main drawbacks of this approach are the resulting understeering behavior of …

Authors: Tommaso Novi, Alexander Liniger, Renzo Capitani, Claudio Annicchiarico Autonomous driving at at-limit handling represents a big challenge due to the nonlinear behaviour of a vehicle. In this paper, a hierarchical control scheme composed of two Nonlinear Model Predictive Controls (NMPCs) for path …

Authors: Claudio Annicchiarico, Margherita Montani, Renzo Capitani, Marco Fainello Vehicles with electrical propulsion and energy recovery need specific brake systems able to guarantee the correct integration of electrical energy recovery and high braking capability. The use of advanced controls with brake by wire …

Authors: Margerita Montani, Tommaso Favilli, Lorenzo Berzi, Renzo Capitani, Marco Pierini, Luca Pugi, Claudio Annicchiarico Improved lateral stability performances of modern Electric Vehicles equipped with In-Wheel Motors could be achieved by a proper design of the adopted control strategy. The …

Authors: Margherita Montani, Renzo Capitani, Claudio Annicchiarico The paper presents the development of a vehicle stability control system that is able to operate in real time, ensuring to enhance vehicle dynamics and safety in all vehicle motion conditions, even at …

Authors: Margherita Montani, Daniele Vitali, Renzo Capitani, Claudio Annicchiarico This study concerns the development and testing of three types of Anti-lock Brake Systems (ABS): a standard on-off wheel’s acceleration control; a wheel’s longitudinal slip controller based on a discrete Proportional-Integral-Derivative (PID) control; and a novel type of …

Authors: Enrico Maria Talarico, Giuseppe Raimondi, Federico Alfatti, Daniele Vitaliti, Claudio Annicchiarico Virtual methods in vehicle development processes are constantly getting a greater role over time. The benefits of such methods are lower the costs, speed up the process, explore …

Authors: Margherita Montani, Silvia Amirante, Claudio Annicchiarico, Renzo Capitani The developing of autonomous drive is needed to make people life more comfortable and safer, and one of the important skills to make possible the reliability of the all control system is a good …

Authors: Federico Alfatti, Claudio Annicchiarico, Renzo Capitani In the automotive world, Hardware in the Loop (HiL) methodologies are used to speed up the design and calibration process of the various mechatronics components installed on the vehicle. Installing production parts on …

Authors: Margherita Montani, Leandro Ronchi, Renzo Capitani, Claudio Annicchiarico The aim of this study was to develop trajectory planning that would allow an autonomous racing car to be driven as close as possible to what a driver would do, defining …

Authors: Federico Alfatti, Claudio Annicchiarico, Renzo Capitani In the automotive world, Hardware in the Loop (HiL) methodologies are used to speed up the design and calibration process of the various mechatronics components installed on the vehicle. Installing production parts on …

Authors: Federico Alfatti, Michele Garinei, Claudio Annicchiarico, Renzo Capitani Current ADAS systems can improve vehicle safety directly influencing its dynamics, reducing the impact of human error while driving. These functionalities have a high impact on the complexity of each unit …

Authors: Federico Alfatti, Margherita Montani, Tommaso Favilli, Luca Pugi, Renzo Capitani. This study concerns the comparative investigation of two advanced lateral stability automotive controllers with respect to a commercial solution. The research aims to improve the stability performances achieved by …