Abstract: A suspension system and a method for controlling a suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor is provided for capturing data about a current operational state. An electric control device and a data storage device for controlling the damper device are provided, such that at least one damping characteristic of the damper device can be influenced by a signal from the control device. The control device is configured and organized to provide a teaching mode in which route-related data are stored in the memory. The control device is furthermore configured and organized to provide a repeat mode in which the damper device is controlled according to the route-related data stored in the memory device.

Abstract: A shock absorber for a bicycle or another, at least partly muscle-powered, vehicle has a damper device with a damper housing in which a first and a second damper chamber are separated from one another via at least one damper piston. A piston rod connected with the damper piston extends from the damper piston through the second damper chamber out of the damper housing. The first damper chamber is in communication with the second damper chamber via a flow duct that leads through the piston rod out of the damper housing toward at least one throttling device. The flow duct, at the throttling device, has a damping duct provided with a field-sensitive rheological fluid which, by way of a field generating device disposed at the throttling device, can be exposed to a field of a predetermined strength to influence the pass-through flow of the field-sensitive rheological fluid through the throttling device.

Abstract: A valve is particularly suited for a movement damping apparatus. The valve has a field-generating device, such as a magnet unit, and a fluid that is subjected to the field, such as a magnetorheological fluid, is pressed through a flow path forming a bottleneck. At the bottleneck the fluid is subject to the field and it changes its flow characteristics in response to the field. The flow path is divided into at least two flow tracks by a partition that forms one or more additional friction surfaces.

Abstract: Shock absorber and method for operating a shock absorber for a bicycle wherein a relative motion of a first and a second component interconnected via a damper device is dampened. The damper device comprises a controllable damping valve having at least one field generating device with which a field-sensitive medium can be influenced for influencing a damping force of the damper device by applying a field intensity of the field generating device. A parameter for the current speeds of the first and second components relative to one another is obtained in real time. For damping, a current field intensity to be set is derived in real time by means of the parameter from a characteristic damper curve and by means of the field generating device the field intensity to be currently set is generated in real time for setting in real time a damping force which results from the predetermined characteristic damper curve at the parameter obtained.

Abstract: The invention relates to a method for regulating the current flow of a coil that controls the viscosity of a magnetorheological fluid of a controllable energy absorber in a steering system for a motor vehicle, wherein during an accident the energy absorber acts as a hydraulic damper between two parts movable with respect to one another, whose damping force is determined by the current flow through the magnetic coil, wherein the following steps are provided: the relative velocity between a first part of the steering column movable with the steering wheel and a second part of the steering column fixed to the vehicle body is determined continuously or at intervals, the acceleration required for the braking from the measured relative velocity at standstill up to the end of the travel path is calculated, the current flow is calculated from the calculated acceleration in such a way that the value of the acceleration is approximately reached during the further travel of the parts movable with respect to one anoth

Abstract: A damping device for a two-wheeled vehicle having a first and a second damper chamber which are coupled to one another through a flow connection. The flow connection includes at least one flow valve provided with a damping channel. A magneto-rheological fluid is provided in the damping channel of the flow valve wherein the flow valve includes at least one magnetic device such that the damping channel of the flow valve can be exposed to a magnetic field of the magnetic device. The flow valve further includes at least one spring device. The magnetic device of the flow valve is provided on a valve piston and the valve piston is received in a deflection chamber to resiliently deflect counter to a spring force of the spring device such that the magnetic field of the magnetic device effective in the damping channel depends on the resilient deflection of the valve piston.

Abstract: A damper device for a two-wheeled vehicle and a corresponding method are provided wherein a first damper chamber and a second damper chamber are coupled to one another through at least one flow duct. A ferromagnetic fluid is provided in the flow duct. A magnetic device is assigned to the flow duct to allow exposing at least part of the flow duct to a magnetic field. A magnetic field-generating device is provided wherein a permanent changing of the magnetic field strength of the magnetic device can be carried out through magnetic pulses. In this way, the damper only requires energy for adjusting the damping, normal operation may occur without an external energy supply.

Abstract: A damping device for a two-wheeled vehicle having a first and a second damper chamber which are coupled to one another through a flow connection. The flow connection includes at least one flow valve provided with a damping channel. A magneto-rheological fluid is provided in the damping channel of the flow valve wherein the flow valve includes at least one magnetic device such that the damping channel of the flow valve can be exposed to a magnetic field of the magnetic device. The flow valve further includes at least one spring device. The magnetic device of the flow valve is provided on a valve piston and the valve piston is received in a deflection chamber to resiliently deflect counter to a spring force of the spring device such that the magnetic field of the magnetic device effective in the damping channel depends on the resilient deflection of the valve piston.

Abstract: A movement damping apparatus has magnetorheological fluid that is pressed through a flow path forming a bottleneck in order to dampen a movement. The flow path is divided into at least two flow tracks by a partition that forms an additional friction surface.

Abstract: A movement damping apparatus has a flow path through which a magnetorheological fluid is pressed. A device that generates a variable magnetic field has a core around which a coil is wound as well as pole surfaces in the flow path. The magnetic field acts on the magnetorheological fluid by way of the pole surfaces. The coil is arranged within the flow path along with the core, the axis of the coil extending perpendicular to the direction of flow of the magnetorheological fluid. The flow path has a jacket made of a magnetically conducting material.

Abstract: Closed-loop control of an energy absorber acting as a damper between two parts that are movable relative to one another. A damping force of the energy absorber, or damper, can be adjusted by way of the change in the viscosity of a magnetorheological fluid (MRF), which change can be influenced by a magnetic field of a coil. According to the method it is possible to decelerate an impact or a movement with the lowest possible forces in order to minimize possible consequential damage/loading by way of setting as constant a deceleration as possible, as small a deceleration as possible, by way of using the entire available deceleration travel, and low or zero residual speed at the end of the deceleration travel independently of the moving mass or speed.

Abstract: The invention relates to a method for regulating the current flow of a coil that controls the viscosity of a magnetorheological fluid of a controllable energy absorber in a steering system for a motor vehicle, wherein during an accident the energy absorber acts as a hydraulic damper between two parts movable with respect to one another, whose damping force is determined by the current flow through the magnetic coil, wherein the following steps are provided: the relative velocity between a first part of the steering column movable with the steering wheel and a second part of the steering column fixed to the vehicle body is determined continuously or at intervals, the acceleration required for the braking from the measured relative velocity at standstill up to the end of the travel path is calculated, the current flow is calculated from the calculated acceleration in such a way that the value of the acceleration is approximately reached during the further travel of the parts movable with respect to one anoth

Abstract: A valve for a magnetorheological fluid is formed with a duct through which the magnetorheological fluid can flow and which can be exposed to a variable magnetic field such that the flow resistance of the duct can be set using the magnetic field in the duct. The magnetic field can be lastingly generated using a magnet device that is made at least in part of magnetically hard material. The magnetization of the magnet device can be lastingly modified by a magnetic pulse of a magnetic field generation device in order to lastingly change the magnetic field in the duct and thus the flow resistance of the duct. A valve of the invention requires energy only to change settings while a specific setting can be lastingly maintained without supplying energy.

Abstract: An energy-absorbing apparatus for occupant protection in vehicles, has a receptacle with a magneto-rheological fluid which in the event of an impact is pressed through a flow zone determining the flow velocity. A device generating a variable magnetic field has pole faces in the flow zone, the magnetic field acting on the magneto-rheological fluid between the pole faces in order to regulate the flow velocity. The flow zone is divided into at least two flow routes by at least one partition forming two additional planar pole faces.

Abstract: A shock absorber for a bicycle has a damper device with first and second damper chambers. The damper chambers are connected by way of a controllable throttle valve. A changeable electronic unit has a control device for controlling the electrically controllable throttle valve. The control device thereby influences the damper characteristics.

Abstract: A shock absorber for a bicycle or another, at least partly muscle-powered, vehicle has a damper device with a damper housing in which a first and a second damper chamber are separated from one another via at least one damper piston. A piston rod connected with the damper piston extends from the damper piston through the second damper chamber out of the damper housing. The first damper chamber is in communication with the second damper chamber via a flow duct that leads through the piston rod out of the damper housing toward at least one throttling device. The flow duct, at the throttling device, has a damping duct provided with a field-sensitive rheological fluid which, by way of a field generating device disposed at the throttling device, can be exposed to a field of a predetermined strength to influence the pass-through flow of the field-sensitive rheological fluid through the throttling device.

Abstract: A suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor captures data about at least one current state. An electronic control device and a storage device are provided for controlling the damper device. At least one damping characteristic of the damper device can be influenced by a signal from the control device. The damping valve has a field generating device assigned to it which serves to generate and control a field strength in a damping channel of the damping valve. A field-sensitive rheological medium is provided in the damping channel for controlling the damping characteristic of the damper device in dependence on the sensor data.

Abstract: A suspension system and a method for controlling a suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor is provided for capturing data about a current operational state. An electric control device and a data storage device for controlling the damper device are provided, such that at least one damping characteristic of the damper device can be influenced by a signal from the control device. The control device is configured and organized to provide a teaching mode in which route-related data are stored in the memory. The control device is furthermore configured and organized to provide a repeat mode in which the damper device is controlled according to the route-related data stored in the memory device.

Abstract: A valve device is formed with a through-channel and a field generating device. A fluid which can be influenced by a field is provided in the through-channel and the field generating device is configured to act on the field-influenced fluid in the through-channel by way of a field. At least one adjustment device is provided with which the field that is active in the through-channel can be adjusted. A portion of the cross-sectional area of the through-channel can be adjusted, the portion being exposed to a field of a specific intensity so that the through-channel can also only partly be exposed to a field of a specific intensity. Thus, the through-channel, as seen in the direction of the flow, can be divided into regions of different flow resistance, whereby characteristic curves, which were previously attained only with difficulty, are easily obtained when using the valve device in a damper, for example.

Abstract: A damper device for a two-wheeled vehicle and a corresponding method are provided wherein a first damper chamber and a second damper chamber are coupled to one another through at least one flow duct. A ferromagnetic fluid is provided in the flow duct. A magnetic device is assigned to the flow duct to allow exposing at least part of the flow duct to a magnetic field. A magnetic field-generating device is provided wherein a permanent changing of the magnetic field strength of the magnetic device can be carried out through magnetic pulses. In this way, the damper only requires energy for adjusting the damping, normal operation may occur without an external energy supply.