摘要:
The invention relates to a steering shaft (1) for a motor vehicle for use with a power-assisted support system, said shaft comprising an input shaft (2) and an output shaft (3) which are interconnected in a torsionally elastic manner in order to transmit torque by means of a torsion bar (4). Said torsion bar (4) is mounted on the input shaft (2) and/or the output shaft (3) by means of a support (6) and said support (6) is conical.
摘要:
The invention relates to a power steering assembly for power steering motor vehicles, comprising an input shaft (21) for connection to a steering wheel, an output shaft (29) which is coupled to the input shaft (21) for operational engagement with a steering rod, the coupling between the input shaft (21) and the output shaft (29) permitting a relative rotation therebetween, a servo controller which has a rotatable final control element (24) that is in engagement with the output shaft (29) and is driven by the output shaft (29), the steering force assistance being controlled depending on the relative rotation between the input shaft (21) and the final control element (24), the engagement between the output shaft (29) and the final control element (24) providing for a relative displacement therebetween, the invention further comprising an actuator for relatively displacing the final control element (24) in relation to the output shaft (29) in order to influence the steering force assistance characteristic, a sensor (20, 28) for measuring at least one differential angle between the final control element (24) and the output shaft (29) or between the final control element (24) and the input shaft (21), and an evaluation unit for evaluating the measurement values that are provided by the sensor (20, 28).
摘要:
A hydraulic-power steering system (10) is provided. A power-steering valve (12) controls and varies a level of steering assist. A magnetic actuator (14) varies torsional stiffness of the valve (12) to change torque and produce a sufficient amount of the torque to generate full assist. A first valve (24) is operatively connected to a steering pump (22) and allows the full assist at a relatively low steering torque and through which flow from the steering pump (22) is directed. A second valve (32) is operatively connected to the steering pump (22). Current is applied to a solenoid valve (32) that allows an increasing amount of the flow to be directed through the second valve (32) in response to an input signal of increasing vehicle speed above a threshold value and closes in response to a signal identifying any of a plurality of advanced steering functions.
摘要:
La valve d'assistance (19) est de type rotatif et désolidarisée de la colonne de direction. Elle comprend deux ensembles (20, 21), connectés hydrauliquement ou non, composés chacun d'un rotor (22) et d'une chemise (23) entourant le rotor (22), des rainures au nombre de trois étant prévues sur l'extérieur du rotor (22) et sur l'intérieur de la chemise (23) de chaque ensemble. Des moyens moteurs électriques (33, 34) entraînent en rotation les rotors (22) ou les chemises (23) des deux ensembles (20, 21), disposés coaxialement. Chaque ensemble (20, 21) alimente en fluide hydraulique l'une des deux chambres du vérin d'assistance.