Abstract:
A vehicle roll control system (22,24) for a vehicle (10) wherein the control means comprises a source (80) of fluid, a fluid reservoir (82) , first and second pressure control valves(86,88) fluidly connected in series between the pressure source and the reservoir, and a directional valve (84) fluidly connected between the pressure control valves and the hydraulic actuator, wherein the pressure control valve are actuated to control the fluid pressure in the first and second fluid chambers. Provides a smooth transition during a change in the direction of cornering.
Abstract:
Es wird ein Hülsengelenk mit einer Lagerbaugruppe (1) und einem Innenteil (2) vorgestellt, bei dem die Lagerbaugruppe (1) ein Gehäuse (3) sowie eine in das Gehäuse (3) eingesetzte Lagerschale (4) zur gleitbeweglichen Lagerung eines mit einer gekrümmten Lagerfläche (5) ausgestatteten Lagerkörpers (6) aufweist, wobei der Lagerkörper (6) auf seiner der gekrümmten Lagerfläche abgewandten inneren Oberfläche (7) mit einer Gleitschicht (8) versehen ist, sodass infolge des Gleitkontaktes zwischen der Lagerbaugruppe (1) und dem dieser zugeordneten Innenteil (2) eine Gleitbewegung der Lagerbaugruppe (1) in Längsrichtung des Hülsengelenkes ermöglicht ist.
Abstract:
A method of making high-strength steel structural members is disclosed by providing a blank of high-strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by rolling, upsetting, forging, or extrusion to provide a structural member having a desired geometric cross section while the mechanical strength of the structural member remains substantially the same or greater than the blank.
Abstract:
According to prior art, stabilisers are provided with an actuator that is provided with a considerable linear extension which negatively affects the effective springy lengths of the two stabiliser components. Driving comfort is thus decreased. The aim of the invention is to increase the effectively springy lengths of the two stabiliser components. The invention essentially relates to two stabiliser components (1, 1', 2, 2') which, together with the respective rotating components (4, 4', 5, 5') of the actuator, form one part.
Abstract:
A selectively releasable anti-sway bar as shown in Figure 3 for a vehicle having a frame and at least one pair of opposed wheels attached to the frame by a spring-type suspension system. The apparatus includes a torsion bar assembly (12) and control arm connectors (14) which are attached to the suspension system adjacent to each of the opposed wheels. A releasable scissors linkage (16) is located between one end of the torsion bar assembly and one end of at least one of the control arm connectors. The scissors linkage includes a first arm (42) rigidly connected to one end of the torsion bar assembly. A second arm (46) is pivotally connected to the same end of the torsion bar assembly adjacent to the first arm and connected at the other end to one end of at least one of the control arm connectors. Thus, the anti-sway bar may be selectively released by disengaging the scissors linkage and selectively engaged by engaging the scissors linkage through the engagement and disengagement of a hydraulically actuated movable key (64) which connects the first and second arms.
Abstract:
The invention relates to a wheel suspension for a front axle of an automobile, especially an off-road vehicle. The inventive wheel suspension has a raised pivot bearing on which double-wishbones are pivotably mounted, each double-wishbone consisting of an A-arm. One wishbone is located above a wheel and the other wishbone and a tie rod and a stabiliser are located below an axis of rotation of the wheel. A bearing of the upper wishbone on the pivot bearing-side and a bearing of the tie rod on the pivot bearing are located behind a vertical, central transversal plane of the wheel, in relation to the direction of travel. Another, corresponding bearing of the lower wishbone on the pivot bearing-side is situated in front of the vertical, central transversal plane of the wheel, in relation to the direction of travel, in such a way that a geometrical pivot axis or trailing axis with a piercing point in the wheel contact plane, beyond the track gauge and in front of the vertical, central transversal plane of the wheel is produced. The upper pivot bearing-side bearing and the lower wishbone with the tie rod form an elastokinematic pivot axis, which has a piercing point in the wheel contact plane, behind the vertical, central transversal plane of the wheel and beyond the track gauge, in relation to the direction of travel.
Abstract:
The invention relates to a device for stabilizing the bodywork of motor vehicles. According to the invention, each vehicle wheel (2, 3) is connected to the bodywork (4) via a suspension system, which is actuated by a hydraulic medium, and an active stabilizer. The hydraulically actuated suspension systems on either side of the vehicle are connected by a line (38) in which a transmission medium can be displaced. Use of a liquid or gaseous suspension- or power-transmission medium ensures that in case of a purely rolling motion the medium is merely displaced in the connecting line without having a suspension effect.
Abstract:
In an active roll control system for a vehicle, anti-roll bars (26, 30) are provided with actuators (28, 32) which can provide a torque in the anti-roll bars to control vehicle body roll. Under certain cornering conditions when the vehicle is liable to over-steer, the pressure supply to the actuators is pulsed so that the front wheels of the vehicle tend to break away more easily, thereby reducing over-steer.
Abstract:
An active vehicle roll control system is disclosed in which a roll bar (22) has two halves (22a, 22b) which can be locked together to allow the system to operate passively. A sensing system based on a lateral accelerometer and vehicle speed sensor is arranged to detect when the vehicle is on a side slope and to put the roll control system into the passive mode.
Abstract:
A vehicle suspension control system that allows substantially vertical motion of each wheel relative to the vehicle body includes front and rear resilient support means for supporting the body, a front roll stabilisation assembly interconnecting at least one forward pair of wheels and a rear roll stabilisation assembly interconnecting at least one rearward pair of wheels. Each roll stabilisation assembly includes at least one lateral torsion bar (2) and a double-acting hydraulic actuator (3) interconnected to the at least one lateral torsion bar (2), the front and rear hydraulic actuators (3) being interconnected by first and second fluid conduits (5). Roll moments applied to the vehicle body generate pressure within the fluid conduits (5) thereby transmitting the roll moment into each lateral torsion bar (2). Warp motions of the wheels generate flow along the fluid conduits (5) resulting in a displacement of one hydraulic actuator (3) in a proportional and opposite direction to the other hydraulic actuator (3). The front and rear roll stabilisation assemblies provide roll stiffness during both roll and warp motions while at the same time providing substantially zero warp stiffness. The system includes an hydraulic fluid supply means (12) and fluid conduit valve means (13) for selectively communicating the fluid conduits (5) with the hydraulic fluid supply means (12) to regulate the average pressure in both fluid conduits (5).