Abstract:
Le dispositif d'estimation de la masse totale d'un véhicule automobile comprend un premier module (2) d'estimation de la masse totale (M algo ) du véhicule automobile en fonction des paramètres dynamiques du véhicule et un deuxième module (3) d'estimation de la masse totale (M deb ) du véhicule en fonction de valeurs du débattement de chacune des suspensions du véhiculemesurées par des capteurs de débattement (6). Le dispositif d'estimationcomprendun système de ré- étalonnage (8) des capteurs de débattement embarqué sur le véhicule automobile.
Abstract:
A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.
Abstract:
Die Erfindung betrifft ein Verfahren zur Niveauregulierung bei einem Kraftfahrzeug, wobei durch Ansteuerung von zumindest einem Aktuator ein vorbestimmter Fahrzeughöhenstand einstellbar ist. Erfindungsgemäß erfolgt die Ansteuerung des Aktuators in Abhängigkeit von einem ersten, mit dem elektrischen Zustand des elektrischen Bordnetzes korrelierenden, Betriebsparameter und in Abhängigkeit von einem zweiten, den Fahrzeughöhenstand repräsentierenden, Betriebsparameter.
Abstract:
The monitoring of the footprints (Z) of the tyres (P), preferably by means of piezoresistive rubber sensors (1) incorporated in the tyres (P), enables the bearing forces to be distributed automatically amongst the various tyres (P) so as to optimise the behaviour of the motor vehicle, for example, in dependence on different driving styles or in dependence on different ambient conditions.
Abstract:
A control system and method is disclosed for controlling an active suspension and a leveling system for a motor vehicle. The control system may use estimator, controller and management modules. The estimator module processes measured signals obtained from various components and sensors of the vehicle relating to modal displacements, velocities and accelerations, and calculates derived signals which are used as inputs to the controller module. The controller module calculates the desired damper force for each active damper based on motions of the vehicle body and wheels. The management module translates the desired active damper force into an appropriate set of control signals to control each active damper. These operations are performed for each active damper of the vehicle to control each damper in real time.
Abstract:
Wheel suspension comprising a frame suitable for connection to a body of a vehicle and comprising a first and second wheel which together define a track width, and wherein the first wheel is connected to the frame via a first set of actuators and wherein the second wheel is connected to the frame via a second set of actuators such that by means of operating the actuators the track width is adjustable between a narrow track, characterized in that the first set of actuators overlaps in the transverse direction of the vehicle with the second set of actuators.
Abstract:
The present disclosure relates to a method for determining whether or not ground contact loss is imminent for a wheel (20, 22, 24) of a vehicle (10), said vehicle (10) comprising a vehicle body (12) having a vertical extension in a vertical direction (V), said wheel (20, 22, 24) being allowed to be subjected to a relative vertical displacement, in said vertical direction (V), in relation to said vehicle body (12), said vehicle (10) further being such that a maximum value of a vertical displacement of said wheel (20, 22, 24) relative to said vehicle body (12) is limited to a relative vertical displacement limit (V l ), said method comprising: - determining an actual relative vertical displacement (d v ) of the wheel relative to said vehicle body (12), - determining a limit margin (l m ) as the difference between said actual relative vertical displacement (d v ) and said relative vertical position limit (v l ) and - determining that ground contact loss is imminent for a wheel (20, 22, 24) if said limit margin (l m ) is within a predetermined vertical threshold range.
Abstract:
The method and apparatus of the present invention provide constant force suspension and near constant force suspension and associated control algorithms (40), all of which may be utilized in vehicle suspension systems (45). By using the apparatus of the present invention, a vehicle may be isolated from the motion of a wheel (15) as it follows rough terrain, thereby improving ride quality.
Abstract:
A combined control system for motor vehicles is essentially composed of sensors and electronic circuits which evaluate the signals from the sensors and which generate control signals for controlling anti-locking or anti-skid subsystems, level and/or chassis control subsystems and so on. The combined control system is provided with an interactive state observer which receives signals from the circuits, transmits signals to the circuits and generates at predetermined moments signals which place one or several control subsystems in a defined state in a short time. In this state, vehicle constants or data are determined from the sensor signals and their modifications and are taken into account as updated control data.
Abstract:
Ein elektromechanischer Aktuator (2), insbesondere Fahrwerksaktuator, beispielsweise Aktuator eines Wankstabilisators, für ein Kraftfahrzeug umfasst eine auf dem invers-magnetostriktiven Prinzip beruhende Drehmomentmessanordnung (13), welche mindestens eine Elektronikeinheit aufweist, wobei diese eine mittels Nietverbindung (20) zumindest indirekt mit einem Aktuatorgehäuse (9) verbundene Platine (14) aufweist.