A powertrain for a vehicle may include a vehicle chassis, a rotatable vehicle drive axle, at least one selectively movable electric propulsion motor having a rotatable motor shaft rotatable about an axis defined by the rotatable vehicle drive axle, a motor actuator connected to the at least one selectively movable electric propulsion motor, and a control system in communication with the motor actuator. The control system may include a memory device in communication with the control system having instructions that when executed by the control system causes the control system to receive at least one input from at least one sensor and instruct the motor actuator to rotate the at least one selectively movable electric propulsion motor based on the at least one input from the sensor.

An electrically powered suspension system 11 achieves vibration control of a vehicle without disturbing a vehicle behavior and impairing riding comfort even if an electric motor 31 of an electromagnetic actuator 13 generates excessive heat, wherein the electromagnetic actuator 13 includes the electric motor 31 generating a driving force for vibration damping and extension/contraction; a target damping force setting part 51 setting a target damping force; a target extension/contraction setting part 53 setting a target extension/contraction force; and a drive controller 49 performing the drive control of the electric motor 31 using a drive force based on the target damping force and target extension/contraction force by limiting the motor current not to exceed a current threshold that is an addition of a damping current threshold and extension/contraction current threshold, which thresholds are separately configured considering a priority of riding comfort and steering stability.

A rotary damper has a housing, a damper shaft rotatably held on the housing, a damper volume accommodated in the housing and which has a magnetorheological fluid as working fluid, and at least one magnetic field source in order to influence a degree of damping of the rotational movement of the damper shaft relative to the housing. A separating unit connected to the damper shaft divides the damper volume. At least one gap portion, which can be influenced by a magnetic field of the magnetic field source, is formed between the separating unit, which is connected to the damper shaft, and the housing. The housing, the separating unit and the magnetic field source are designed such that a flow cross section for the magnetorheological fluid from one side to the other side of the separating unit changes in dependence on a rotational angle.

A powertrain for a vehicle may include a vehicle chassis, a rotatable vehicle drive axle, at least one selectively movable electric propulsion motor having a rotatable motor shaft rotatable about an axis defined by the rotatable vehicle drive axle, a motor actuator connected to the at least one selectively movable electric propulsion motor, and a control system in communication with the motor actuator. The control system may include a memory device in communication with the control system having instructions that when executed by the control system causes the control system to receive at least one input from at least one sensor and instruct the motor actuator to rotate the at least one selectively movable electric propulsion motor based on the at least one input from the sensor.

A roll stabilizer for a motor vehicle includes a plurality of sensors for detecting a plurality of measurement variables, in particular a torque sensor, a rotor position sensor and optionally an actuator temperature sensor. Each of the sensors resides on a separate sensor circuit board which is separate from a motherboard. The motherboard has electronics for evaluating the measurement variables detected by the sensors and/or for forwarding said measurement variables to an external control device.

An electrically powered suspension system 11 achieves vibration control of a vehicle without disturbing a vehicle behavior and impairing riding comfort even if an electric motor 31 of an electromagnetic actuator 13 generates excessive heat, wherein the electromagnetic actuator 13 includes the electric motor 31 generating a driving force for vibration damping and extension/contraction; a target damping force setting part 51 setting a target damping force; a target extension/contraction setting part 53 setting a target extension/contraction force; and a drive controller 49 performing the drive control of the electric motor 31 using a drive force based on the target damping force and target extension/contraction force by limiting the motor current not to exceed a current threshold that is an addition of a damping current threshold and extension/contraction current threshold, which thresholds are separately configured considering a priority of riding comfort and steering stability.

A suspension control system dynamically adjusts pistons located proximal to wheels of an agricultural machine to substantially equalize distribution of weight of the machine at each wheel and/or provide a substantially constant desired orientation of the machine above a ground surface thereby protecting laterally extending sprayer booms from contacting the ground. Articulation, pitch, roll and/or machine height can be determined from piston measurements on the machine to apply such height corrections. For sprayers, this allows controlling clearance and suspension height to maintain the boom parallel to the ground to prevent damage.

A damper system for a vehicle is provided that includes an outer tube, a piston rod, and a piston assembly that is mounted to the piston rod and separates the outer tube into first and second working chambers. A valve assembly, mounted to the piston assembly, controls fluid flow between the first and second working chambers. A magnetic rotor is fixed to and extends annularly about the outer tube. A stator assembly is coupled to the piston rod by a spherical bearing assembly. The stator assembly includes a plurality of coils that apply an active damping force to the piston rod when energized. The coils can also generate electricity from axial movements of the piston rod relative to the outer tube. One or more glide bearings are disposed radially between the coils and the magnetic rotor in a sliding fit to stabilize the stator assembly.

In one aspect, a suspension control system is provided for dynamically adjusting pistons located proximal to wheels of an agricultural machine to account for tire deflection or squat with varying loads. Articulation, pitch, roll and/or machine height can be determined from pressure measurements on the machine to apply such tire height corrections. For sprayers, this allows controlling clearance and suspension height to maintain the boom parallel to the ground to prevent damage.

A jounce bumper can be dimensioned for securement along an end member of a gas spring assembly adjacent a sensing device. The jounce bumper can include a bumper body with a sensing passage extending their through such that the sensing device can communicate through the sensing passage. A gas spring assembly including a sensing device and such a jounce bumper as well as a suspension system including one or more of such gas spring assemblies are also included.