The invention relates to a method for operating a motor vehicle, which has a contactless head-up display, kHUD, which is designed to display virtual contents in superposition with real objects, and furthermore has a semi-active damper system, which is designed to be operated selectively with one of a plurality of damper characteristic curves. In the method according to the invention, a real object located in the direction of travel of the motor vehicle is identified, and virtual content for augmenting the identified real object is determined. In order to prepare for the display of the virtual content, one of the plurality of damper characteristic curves of the semi-active damper system is then selected in order, for example, to optimize both the operation and simulation of the damper system. The virtual content is then displayed, by means of the kHUD, in superposition with the real object, with fewer spatial discrepancies.

Described are devices, systems, and methods that enable greater control and customization of variable suspension systems via mechanical modification, among other advantages. In one example, a linkage device is configured to be attached to a suspension arm of a vehicle and to a vehicle frame of the vehicle. The linkage device is configured to mechanically modify one or more physical states detected by a sensor of the vehicle, thereby causing the sensor to output modified signals to a controller, and causing the controller to output modified control signals to a variable shock absorber connected between the vehicle frame and the suspension arm, thereby modifying one or more variable physical properties of the variable shock absorber.

A shock absorber is provided. The shock absorber of the present invention includes a shock absorber main body, a damping passage, a primary damping force generation component, and a secondary damping force generation component. The shock absorber main body has an outer tube and a rod and is stretchable. The damping passage communicates operating chambers with each other provided in the shock absorber main body. The primary and secondary damping force generation components are provided in series with the damping passage. The secondary damping force generation component includes a secondary valve, an annular facing portion, and a valve stopper. The annular facing portion faces the secondary valve with an annular gap between the annular facing portion and the secondary valve. The valve stopper has elasticity to allow bending, and when the secondary valve bends and comes in contact with the valve stopper, restricts the secondary valve from bending.

A regenerative shock absorber that include a housing and a piston that moves at least partially through the housing when the shock is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor, in turn, drives an electric generator that produced electric energy. The electric energy may be provided to a vehicle, among other things. The regenerative shock absorber may also provide ride performance that comparable to or exceeds that of conventional shock absorbers.

A damping force control device 10 comprises vary damping shock absorbers, a detector, and a controller. Each of the shock absorbers sets damping coefficient from a minimum value to a maximum value in order to adjust damping force. The detector detects vertical vibration state quantity relating to vibration of the sprung mass. The controller performs an ordinary control for setting the damping coefficient based on the vertical vibration state quantity and according to a predetermined control law suitable for an assumption that all of the wheels touch ground. The controller performs, when at least one of the wheels is an ungrounded wheel which does not touch the ground and each of the other wheels is a grounded wheel which touches the ground, a specific control for setting the damping coefficient of the shock absorber corresponding to the grounded wheel to a first specific value greater than the minimum value.

A suspension shock absorber for remote control (RC) cars includes an inner tube and an outer tube coaxial with each other. The hollow area inside the inner tube defines a hollow chamber where a piston and a piston rod slidably moves. A shock cap seals the top of the inner tube and the outer tube. The space between the coaxial inner tube and outer tube is used as an inter-tube bypass route through which bypass oil flows. The shock cap has a bypass passage connecting the inter-tube bypass route with the upper portion of the hollow chamber. A bypass valve in line with the co-axis of the inner tube and the outer tube is disposed on top of the shock cap and used to regulate the amount of oil flow through the bypass passage.

A hydraulic vibration damper, in particular for a vehicle chassis, includes a cylinder tube for receiving a hydraulic fluid. A piston is axially movable within the cylinder tube along a cylinder tube axis and subdivides the cylinder tube into two working chambers. A piston rod is oriented parallel to the cylinder tube axis and is connected to the piston. At least one valve assembly for damping the piston movement in a direction of actuation is arranged at a fluid leadthrough. A bypass duct includes a sub-duct provided in addition to the fluid leadthrough between the two working chambers. A valve arrangement with continuously adjustable damping force is provided which regulates the throughflow through the fluid leadthrough and the sub-duct. The sub-duct includes a throttling mechanism, having a throttle, and a non-return valve. The throttle and the non-return valve of the sub-duct are arranged in series.

A rough road detection system is disclosed. The system includes a sensor data receiver to receive sensor data from one or more sensors monitoring a vehicle. A sensor data evaluator to: identify a repeating pattern in the sensor data, the repeating pattern indicative of a terrain type being traversed by the vehicle, determine a value of the repeating pattern, obtain a present set of operational values for at least one damping characteristic of an active valve damper coupled with the vehicle, and modify the present set of operational values for the at least one damping characteristic of the active valve damper based on the value of the repeating pattern to develop a modified set of operational values for the at least one damping characteristic of the active valve damper.

A shock absorber includes: a cylinder; a piston slidably inserted into the cylinder; a piston rod connected to the piston and extending outside the cylinder; a main valve that generates a damping force; a pilot chamber that applies pressure to the main valve; an introduction passage that introduces the fluid into the pilot chamber; a pilot passage that communicates the pilot chamber and a downstream side of the main valve with each other; and a control valve provided in the pilot passage. In an upstream side of the pilot passage from the control valve, the pilot passage is provided with a first orifice, a first passage provided in parallel with the first orifice, a first check valve that is opened at a predetermined differential pressure and allows a flow toward the control valve through the first passage, and a second orifice.

A hydraulic damper with one end connected to the body of a vehicle and a second end connected to a suspension system of a vehicle. The mechanism allows for multiple hydraulic-fluid metering valve positions to control piston resistance based on a variable pressure input using pressurized gas. The use of compressed gas to mechanically control a valve position allows changes to the piston resistance to be made quickly and to be increased or decreased as desired. The hydraulic damper features a control piston which in turn mechanically controls a valve needle within a hydraulic suspension piston. The position of the valve needle controls the damping characteristics of the suspension piston. When the control piston moves, the position of the valve needle is proportionally adjusted.