A heating device for a hydraulic fluid reservoir of a damper, comprising a flexible heating element and a support structure. The support structure supports the flexible heating element such that the flexible heating element is configured to contact and at least partly encompass the fluid reservoir, and the heating device is provided to be releasably connected to the fluid reservoir by side portions provided to bias the flexible heating element to the fluid reservoir.

An emergency operating method for operating an active chassis of a motor vehicle in the event of a failure of a pump of the active chassis. The method includes (a) detecting a termination of a proper electrical supply of an electric drive machine of the pump; (b) short-circuiting the electric drive machine operated at high voltage; and (c) disconnecting the high-voltage supply of the electric drive machine.

A spring system includes a bladder, a pump in fluid communication with the bladder, and an air line coupled with the pump and configured to fluidly communicate with a thermal conditioning unit. The pump is configured to draw the air through the air line from the thermal conditioning unit and transmit the air to the bladder.

A suspension system for a work vehicle includes a shock absorber including a fluid, a coil positioned at least partially in the fluid, a sensor configured to detect a work status of the work vehicle, and a controller. The controller is configured to determine the work status of parked or operational based on the sensor, determine an electrical resistance of the coil in a shock absorber based on the work status, predict a temperature of a fluid in the shock absorber based on the electrical resistance of the coil, provide an electric current in the coil based on the predicted temperature of the fluid, determine the electrical resistance of the coil while the electric current is on, and terminate the electric current in the coil based on the work status and the predicted temperature.

A damper control system includes a controller configured to estimate a temperature of a damper fluid based on data relating to heat added to and heat removed from the fluid. At least one damper is operatively coupled to the controller, and the controller is configured to control a size of a damper flow path of the at least one damper based on the estimated temperature. Methods relate to controlling at least one damper based on an estimated temperature of a damper fluid.

Suspension for a wheeled vehicle provided with at least one wheel and a frame, having at least one elastic element functionally combinable between the wheel and frame is disclosed. The suspension has at least one hydro-pneumatic spring functionally combined in series with the elastic element so that the equivalent spring modulus (Keq) of the elastic element and hydro-pneumatic spring is variable as a function of the distance between the frame and wheel. The hydro-pneumatic spring is shaped and sized to behave also as an energy dissipator in series to the elastic element.

A motor vehicle has a metal frame, active suspensions for supporting respective wheels, and a heat exchange system for managing heat of at least one component of the active suspensions; the heat exchange system is provided with a heat exchange circuit, which has a pump for supplying a heat exchange liquid, a heat exchanger, at least one heat exchange segment in the active suspensions, a return branch from the active suspensions towards the pump, and a delivery branch from the pump towards the active suspensions; at least one of the return and delivery branches comprises a metal pipe, which is free of thermal insulators and is arranged along the metal frame to transfer heat to the latter; in particular, the heat exchange is adjusted by varying the speed of the pump.