Forces in a vehicle interface between the suspension and a body are identified. Rather than using many or all strain gauges, some more easily and rapidly installed acceleration sensors are instead used to measure local deformation. To remove or reduce the effects of rigid-body motion captured by accelerometers, an inertial measurement unit is also used. The forces are estimated from a behavior model accounting for both rigid and flexible motions.

The present disclosure relates to a damper system for a vehicle. The damper system may have an electrically adjustable hydraulic shock absorber including a rod guide assembly, a pressure tube, a reserve tube and an electromechanical valve. The electromechanical valve may be disposed in a valve cavity within the shock absorber. An integrated electronic system may be included which has a power drive electronics. The power drive electronics is electrically coupled to the electromechanical valve. The integrated electronic system is disposed along an axis parallel to a longitudinal axis of the pressure tube, and at a location radially outwardly of the pressure tube adjacent the rod guide assembly.

At least one controller configured to control an actuator of an active suspension system. The at least one controller includes circuitry configured to determine an actuator state, and apply the actuator state and a commanded state to an inverse model of the actuator to produce an actuator command. The circuitry is configured to produce the actuator command by a process that includes performing low pass filtering and phase compensation to correct a phase introduced by the low pass filtering.

A damper system and method for a vehicle includes a shock absorber and a damper module. The shock absorber includes a plurality of digital valves. The shock absorber is operable at one of multiple damping states based on a valve state of the digital valves. The damper module is coupled to each of the digital valves and controls each of the digital valves to a desired state based on a damper setting. The damper module determines a target damping state, where the target state is one of the multiple damping states. The damper module performs a switch operation to control the valve state of the plurality of digital valves to a given desired state when the target damping state is different from a present damping state.

A wireless active suspension system is disclosed. The system includes at least one sensor mounted to an unsprung mass of a vehicle, the sensor having a low power wireless communication capability, the at least one sensor to send a sensor data transmission. The system also includes a controller in wireless communication with the at least one sensor, wherein the controller receives the sensor data from the at least one sensor and communicates an adjustment command to modify at least one damping characteristic of at least one damper.

A damper system and method for a vehicle includes a shock absorber and a damper module. The shock absorber includes a plurality of digital valves. The shock absorber is operable at one of multiple damping states based on a valve state of the digital valves. The damper module is coupled to each of the digital valves and controls each of the digital valves to a desired state based on a damper setting. The damper module determines a target damping state, where the target state is one of the multiple damping states. The damper module performs a switch operation to control the valve state of the plurality of digital valves to a given desired state when the target damping state is different from a present damping state.

A damper system for a vehicle comprises an electrically adjustable hydraulic shock absorber and a damper control module. The damper control module is disposed with and coupled to with the shock absorber. The damper control module determines a target damping state of the shock absorber based on data received from a plurality of sensors. Furthermore, the damper control module controls the shock absorber, such that the shock absorber operates at the target damping state.

A bumper cap assembly for an electrically adjustable hydraulic shock absorber. The bumper cap assembly includes a printed circuit board assembly and a bumper cap. The printed circuit board assembly includes power drive electronics and is electrically coupled to the shock absorber. The bumper cap defined a gap, wherein the printed circuit board assembly is housed within the gap.

At least a portion of a detecting portion of a front wheel rotation speed detector is supported on one front telescopic element of a shock absorbing device and is positioned in, as viewed in the direction of a wheel axis, an area defined by a front imaginary line which passes a front end of the shock absorbing device and which is parallel to a steering axis and a rear imaginary line which passes a rear end of the shock absorbing device and which is parallel to the steering axis in a perpendicular or substantially perpendicular direction to the wheel axis and the steering axis, an area located inwards of an outer shape of a wheel, and an area which is located outside an area defined between the front and rear telescopic elements.

A damping member (100) for a pneumatic valve (205) of a pneumatic system (201) of a vehicle (200a), in particular a utility vehicle (200b), is adapted to be mounted to an air outlet section (210) of the valve (205) which is used for exhausting pressurized air (220). The damping member (100) is adapted for damping sound emission of the pressurized air (220) and includes a scaffold structure (105). The scaffold structure (105) is adapted to damp the sound emission of the pressurized air (220) by conducting the air (220) through the scaffold structure (105).