A shock assembly is disclosed. The assembly includes a damper chamber having an outer wall with a first inner diameter (ID). A secondary chamber within the damper chamber, the secondary chamber comprising an exterior wall with an external diameter (ED) less than the ID of the outer wall to form an annular region therebetween. A damping piston coupled to a piston rod, the damping piston disposed in the secondary chamber and axially movable relative to the secondary chamber, the damping piston to bifurcate the secondary chamber into a compression side and a rebound side. A valve to control a flow of a working fluid between the annular region and the secondary chamber.

The present invention relates to a construction machine, in particular a ground milling machine, with a drive motor, a machine frame supported by a traveling gear with traveling devices, and an operator platform arranged on the machine frame, wherein the traveling gear has a front and a rear traveling gear axle, and wherein at least one of the traveling gear axles is configured as a locking axle with two traveling devices which are height-adjustable relative to the machine frame independently of one another and can be locked in an operating position, and at least one further traveling gear axle is configured as a swing axle such that the traveling devices of the swing axle are jointly height-adjustable relative to the machine frame, and a height adjustment of one traveling device of the swing axle leads to an opposite height adjustment of another traveling device of the swing axle, wherein a control device is provided which is configured such that it detects the load on at least one of the traveling devices of the locking axle as a control variable and, when the load on the traveling device of the locking axle falls below or exceeds a threshold value, blocks the joint height adjustment of the traveling devices of the swing axle relative to the machine frame. Moreover, the present invention relates to increasing the stability of such a construction machine.

A voltage converter of a high voltage driver generates a high voltage applied to an electrorheological damper. The voltage converter and the electrorheological damper are electrically connected together through a connecting portion. The connecting portion comprises an electrode pin that connects the voltage converter and an electrode cylinder of the electrorheological damper; a ground pin that connects an external cylinder of the electrorheological damper and ground, and a ground detection pin disposed separately from the ground pin and connected to the ground through the external cylinder and the ground pin. When the ground detection pin and the ground are disconnected, the voltage converter discontinues the voltage generation with or without a command (control signal) of a sub-controller.

Methods perform one or more dispatched medical logistics operations using a modular autonomous bot apparatus assembly and a dispatch server where the operations are related to a diagnosis kit for treating a patient. The MAM of the bot receives a dispatch command, verifies compatibility of the bot assembly with the dispatched operation(s), receives a diagnosis kit in the CSS, has the MAM autonomously causing the MB to move to a destination location while notifying the authorized delivery recipient for the diagnosis kit of the approaching delivery. With appropriate authentication input received, the MAM coordinates with the CSS to provide access to the kit, monitor unloading of the kit, provide instructional information on use of the kit, and autonomously cause the MB to return to the original location with a return item related to the diagnosis kit with notification to personnel at the medical entity about the return item.

An inertial regulation active suspension system based on posture deviation of a vehicle and a control method thereof are provided. The system comprises a vehicle body, an inertial measurement unit, an electronic control unit, a servo controller group, a plurality of wheels, suspension servo actuating cylinders respectively corresponding to the wheels, and displacement sensors for measuring a stroke of the suspension servo actuating cylinders. The electronic control unit reads posture parameters of the vehicle body measured by the inertial measurement unit, and calculates a deviation between the postures of the vehicle body at a current moment and at a previous moment, and then outputs posture control parameters to the servo controller group. The servo controller group controls extension and retraction of each of the suspension servo actuating cylinders according to the posture control parameters and displacement feedback values of the displacement sensors.

An airshock assembly is disclosed. The airshock assembly includes a shock absorber an airspring, and an air compressor assembly. The airspring is axially coupled with a portion of the shock absorber and used to modify a ride height of the shock absorber. The air compressor assembly is coupled with a portion of the shock absorber. The air compressor assembly is used to modify an air pressure in the airspring without requiring the airshock assembly to utilize an air reservoir.

A suspension system for a land vehicle is provided with at least one actuator connected to a chassis and an axle of a land vehicle spaced apart from a pivotal connection of the axle. A suspension circuit is in cooperation with the at least one actuator. A controller is in operable communication with the suspension circuit and is programmed to receive input indicative of a travel speed of the land vehicle. The suspension circuit is closed at a low speed travel range to permit the axle to pivot in response to variations in an underlying support surface. The suspension circuit is opened to permit selective actuation of the at least one actuator at a higher speed travel range in response to variations in the underlying support surface.

To provide a solenoid, a solenoid valve, and a damper in which when the amount of current supplied to the solenoid is small, the thrust of the solenoid to bias an object in one direction can be made small, and at the same time, even when the solenoid is not energized, the object can be biased in the same direction as that of the thrust. The solenoid includes a coil, a first movable iron core and a second movable iron core that are attracted in a direction away from each other by energizing the coil, a coil spring that biases the first movable iron core toward the second movable iron core, and a leaf spring that restricts the approach of the first movable iron core and the second movable iron core.

A suspension control device which controls an operation of a suspension of a vehicle includes an operation-induced state quantity estimation portion which estimates an operation-induced state quantity caused by an operation of a vehicle, a road surface-induced state quantity estimation portion which estimates a road surface-induced state quantity caused by a road surface, an operation-induced state quantity conversion portion which converts the operation-induced state quantity into an operation-induced required damping force, a road surface-induced state quantity conversion portion which converts the road surface-induced state quantity into a road surface-induced required damping force, and a current value calculation portion which determines a current value to be applied to the suspension with reference to the operation-induced required damping force and the road surface-induced required damping force.

An electrically powered suspension system includes: an electromagnetic actuator generating a driving force for vibration damping of the vehicle; an information acquisition part acquiring information on a stroke velocity of the electromagnetic actuator; a damping force calculator calculating a target damping force of the electromagnetic actuator, based on the information on the stroke velocity acquired by the information acquisition part; and a drive controller based on the target damping force calculated. The damping force calculator performs frequency-shaping of the stroke velocity for suppressing a low-frequency component of the stroke velocity, calculates an adjusted damping force based on the information on the stroke velocity after the frequency-shaping, and adjusts the target damping force using the adjusted damping force calculated. The suspension system appropriately suppresses vibration near a system resonance point while keeping excellent ride quality of the vehicle.