Abstract:
L'invention concerne un véhicule (3) comportant au moins deux essieux (6, 7, 8) équipés d'au moins deux pneumatiques dont les axes de rotation sont en permanence parallèles entre eux d'un essieu à l'autre. Selon l'invention, chaque essieu (6, 7, 8) porte au moins 10% de la charge du véhicule et au moins deux essieux (6, 7, 8) portent des charges différentes en roulage. L'invention propose encore un procédé de répartition de la charge entre lesdits au moins deux essieux.
Abstract:
Die Erfindung betrifft ein Verfahren zur Kalibrierung der Achslastanzeige eines ECAS-Niveauregelsystems, mit mindestens folgenden Schritten: Eingabe einer Tastenkombination in die Bedientasten (4) eines Bedienfeldes (3) einer ECAS-Bedieneinheit (1) zur Aktivierung des Änderungsmodus, und Eingabe von Änderungsdaten in die Bedientasten (4) der E-CAS-Bedieneinheit (1). Hierbei ist vorzugsweise die Tastenkombination frei von für die Aktivierung des Änderungsmodus speziell vorgesehenen Tasten ist. Eine Taste, z. B. die Stopptaste ist vorteilhafterweise für einen vorgegebenen Zeitraum zu drucken. Nach Eingabe der Tastenkombination kommt aus der ECAS-Bedieneinheit (1) eine Ruckmeldung, woraufhin die ein oder mehreren relevanten Achsen auswählbar sind.
Abstract:
PROBLEM TO BE SOLVED: To provide ride height leveling control for a dual air spring configuration.SOLUTION: An air suspension system is configured to adjust and maintain a desired vehicle ride height and spring rate. The air suspension system includes a plurality of air spring assemblies that each include a piston airbag and a primary airbag mounted around the piston airbag. A controller receives ride height input data and adjusts pressures within the primary and piston airbags until the desired ride height and spring rate is achieved. The controller accommodates for system hardware differences by varying flow rates into and out of the primary and piston airbags relative to each other.
Abstract:
A motion control system includes a top mount, a bottom mount, a rigid housing, an air spring, and a linear actuator. The air spring transfers force of a first load path between the top mount and the bottom mount. The air spring includes a pressurized cavity containing pressurized gas that transfers the force of the first load path. The linear actuator transfers force of a second load path between the top mount and the bottom mount in parallel to the first load path. The rigid housing defines at least part of the pressurized cavity and transfers the force of the second load path.
Abstract:
A suspension system includes a spring assembly including a gas spring and an accumulator, and a controller. The accumulator is coupled to the gas spring and includes a bladder. The accumulator has a compressed state and an uncompressed state. The controller is configured to a) determine a target amount of gas in the spring assembly and b) adjust the amount of gas in the spring assembly towards the target amount of gas based on a pressure difference across the bladder.
Abstract:
A spring-damper assembly for a suspension corner employed in a vehicle having a vehicle body and a road wheel includes a fluid spring configured to suspend the vehicle body relative to the road wheel. The spring-damper assembly also includes a damper configured to attenuate compression and rebound oscillations of the fluid spring. The spring-damper assembly additionally includes a spring-seat housing configured to retain the fluid spring and establish a position of the fluid spring relative to the damper. The spring-seat housing includes an inner surface defining a contour configured to guide the fluid spring upon compression thereof around the damper and define a non-linear stiffness of the fluid spring. A vehicle having such a spring-damper assembly is also provided.
Abstract:
A method for shifting tandem axle loads on a vehicle including an air suspension circuit having a three way valve, a first air spring connected between a drive axle of a tandem and a vehicle frame and a second air spring connected between a tag axle of the tandem and the vehicle frame. A diameter of the first air spring is larger than a diameter of the second air spring. The system also has an air supply, a first fluid line connected between a port one of the three way valve and the first air spring and a second fluid line connected between a port three of the three way valve and the second air spring.