In a suspension controlling apparatus for a vehicle including a suspension whose damping force is variably settable and a control unit capable of controlling the damping force of the suspension, for appropriately obtaining a pitch behavior. When a vibration state of a vehicle in a vertical direction exceeds a given vibration state, a control unit controls damping force of suspensions on the basis of a target damping force in order to execute a skyhook control. However, when acceleration in a forward and rearward direction of the vehicle is outside a given range, a decision condition for the given vibration state is changed to a condition on the side on which the skyhook controlling damping force control of the suspensions is less likely to be started.

The present invention relates to a self-propelled construction machine, in particular a road milling machine, a recycler or a surface miner, comprising a machine frame 1 supported by a chassis 2 which comprises front and rear running gear 3, 4. A working device 5 is arranged on the machine frame 1 and comprises a working roller 17 for working the ground. Lifting devices 15, 16 are associated with the individual running gears 3, 4 and can each be retracted or extended for raising or lowering the running gears with respect to the machine frame. In addition, the construction machine comprises a control unit 20 for actuating the lifting devices 15, 16, which control unit comprises a lifting position measuring device 22 for detecting the lifting position of the lifting devices and a tilt detection device 23 for detecting the tilt of the machine frame 1 transversely to the working direction A of the construction machine. The control unit 20 provides a first mode of operation for working the ground and a second mode of operation for moving the construction machine, and is characterized in that, in the second mode of operation, the lifting devices 15, 16 associated with the individual running gears 3, 4 or wheel are actuated in such a way that the machine frame 1 is substantially levelled transversely to the working direction A of the construction machine, the ground clearance b preferably being at a maximum or the distance not falling below a minimum distance.

Disclosed is a power-generating backlit trim strip for a vehicle, comprising an oscillation system (3, 4; 3, 14), an induction unit (2), a sensor (17) and a control unit (8). The oscillation system (3, 4; 3, 14) includes a movably arranged gyrating mass (3), and the induction unit (2) is used for inductively converting kinetic energy of the gyrating mass (3) into electricity. The sensor (17) is used for determining a frequency of the vehicle vibrations, and the control unit (8) is used for adjusting the resonant frequency of the oscillation system (3, 4; 3, 14) to a determined frequency of the vehicle vibrations.

A vehicle travel control system includes: a sensor for detecting an acceleration or an angular velocity of a sprung mass structure of the vehicle; and a controller configured to: calculate a first sprung parameter being a velocity or a displacement of the sprung mass structure from the sensor detection value; apply a high pass filter to the first sprung parameter to acquire a second sprung parameter; and control travel of the vehicle based on the second sprung parameter. The controller changes strength of the high pass filter according to an offset level representing a magnitude of an offset component of the first sprung parameter. Regarding a first offset level and a second offset level higher than the first offset level, the high pass filter is stronger in a case of the second offset level than in a case of the first offset level.

A roll vibration damping control system includes an electronic control unit configured to: compute a sum of a product of a roll moment of inertia and a roll angular acceleration of a vehicle body, a product of a roll damping coefficient and a first-order integral of the roll angular acceleration, and a product of an equivalent roll stiffness of the vehicle and a second-order integral of the roll angular acceleration, as a controlled roll moment to be applied to the vehicle body; compute a roll moment around a center of gravity of a sprung mass as a correction roll moment, the roll moment being generated by lateral force on wheels due to roll motion; and compute a target roll moment based on a value obtained by correcting the controlled roll moment with the correction roll moment.

An apparatus and a method for determining a mounting state of an electronic control unit (ECU) of an electronic controlled suspension (ECS) system can determine either a normal mounting state or a mounting failure of the ECU of the ECS system. The apparatus for determining the mounting state of the ECU includes: a signal processor receiving a damper velocity of each damper; an integrator calculating an integral of the damper velocity by integrating the damper velocity of each damper received by the signal processor per unit time; a comparator comparing the integral of the damper velocity calculated by the integrator with an actual stroke of each damper; and an index output unit outputting a mounting state of the ECU in the form of an index according to comparison results of the comparator.

A signal processing device for processing a measurement signal in a motor vehicle, wherein the measurement signal relates to a measurement variable which can change over time with sequential measurement values, including: a first signal processing unit for calculating the measurement variable which can change over time from the measurement signal; a second signal processing unit for processing the measurement variable which can change over time in order to obtain a processed measurement variable; a third signal processing unit for calculating a change rate of the measurement variable which can change over time, the third signal processing unit being designed to output an additional measurement signal which indicates the change rate; and a communication interface which is designed to combine the processed measurement variable and the additional measurement signal into a composite transmission signal and to transmit the composite transmission signal.

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.

A control system and method is disclosed for controlling an active suspension and a leveling system for a motor vehicle. The control system may use estimator, controller and management modules. The estimator module processes measured signals obtained from various components and sensors of the vehicle relating to modal displacements, velocities and accelerations, and calculates derived signals which are used as inputs to the controller module. The controller module calculates the desired damper force for each active damper based on motions of the vehicle body and wheels. The management module translates the desired active damper force into an appropriate set of control signals to control each active damper. These operations are performed for each active damper of the vehicle to control each damper in real time.

An electric suspension apparatus includes electric actuators provided for a plurality of wheels, respectively, an acceleration sensor disposed in each of the electric actuators, the acceleration sensor detecting a first acceleration, and an electric suspension control ECU controlling each of the electric actuators based on the first acceleration, and the electric suspension control ECU decreases a control amount to the electric actuator, in a case where a first speed based on the first acceleration in an up-down direction is equal to or less than a predetermined speed.