Active suspension systems including actuators with combinations of accumulators and flow restrictions, as well as their methods of operation, are described. In some embodiments, methods and constructions for mitigating pump ripple and/or resonances between different hydraulic components are also…
In one embodiment, one or more suspension systems of a vehicle may be used to mitigate motion sickness by limiting motion in one or more frequency ranges. In another embodiment, an active suspension may be integrated with an autonomous vehicle architecture. In yet another embodiment, the active…
A suspension apparatus includes a frame, a first carrier and a second carrier connected to the frame and movable with respect to the frame, a first damper disposed in the frame and driven in response to the movement of the first carrier, a second damper disposed in the frame and driven in response…
A control system for a vehicle is provided, the control system comprising one or more controllers, the control system configured to receive an acceleration or deceleration demand signal from an automatic cruise control system, and request modification of one or more parameters of the vehicle…
A hot-start suspension tune system and method is disclosed. The method initiates a starting suspension tune for a vehicle. The starting suspension tune is maintained until a predefined threshold is reached. After the predefined threshold is reached, the starting suspension setting is automatically…
The vehicle suspension control device includes one or more actuators that change stroke of a suspension of a vehicle having one or more doors, and an electronic control unit that controls the stroke by controlling the position of the one or more actuators. The electronic control unit executes an…
A suspension control unit includes a slip state detection apparatus configured to detect a slip state of a wheel. The slip state detection apparatus includes a second slip ratio calculation portion, a slip ratio distribution calculation portion, and a third slip ratio calculation portion. The…
Aspects of the present disclosure relate to a locking control method for a pivot axle of a wheeled working machine including: determining, using a multibody simulation model, a current posture and motion state of the working machine and static and dynamic forces acting on the working machine…
A method for controlling vehicle motion is described. The method includes accessing a set of control signals including a measured vehicle speed value associated with a movement of a vehicle. A control signal associated with user-induced input is also accessed. The method compares the measured…
A suspension system comprises first and second dampers including first and second compression and rebound chambers. A first hydraulic circuit includes a first hydraulic line fluidly connecting the first rebound chamber of the first damper and the second compression chamber of the second damper. A…
A vehicle has steering and drive wheels supported by legs articulated to the structure of the vehicle. Each leg is rotatably mounted on a main support around a transverse axis. The main support is rotatably mounted about the transverse axis on a base structure, which is connected to the structure…
This application discloses a mobile robot and a method for controlling motion of the mobile robot. The mobile robot includes a first wheel part having a telescopic leg portion, a second wheel part having a telescopic leg portion, and a base part connected to the first wheel part and the second…
The present invention discloses an active suspension vehicle and a control method controlling the same. Each wheel of the vehicle is equipped with a telescopically adjustable active actuator. The control method begins by constructing a load and deformation joint control matrix of the vehicle and…
In one embodiment, one or more suspension systems of a vehicle may be used to mitigate motion sickness by limiting motion in one or more frequency ranges. In another embodiment, an active suspension may be integrated with an autonomous vehicle architecture. In yet another embodiment, the active…
A method for operating a driver assistance system of a motor vehicle for assisting detection of objects in an environment of the motor vehicle. The motor vehicle is equipped with a height-adjustable chassis. During a driving maneuver, the height-adjustable chassis is set into a driving position in…
A vehicle has steering and drive wheels supported by legs articulated to the structure of the vehicle. Each leg is rotatably mounted on a main support around a transverse axis. The main support is rotatably mounted about the transverse axis on a base structure, which is connected to the structure…
A vehicle includes system for providing configurable stiffness characteristics. The system includes a cylinder having a first chamber and a second chamber, and a piston arranged between the first chamber and a second chamber. The first chamber is coupled to a first rebound volume and a first…
A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in…
A vehicle suspension system may include a vehicle chassis, a centerless wheel which may include a wheel rim and a tire, and a natural active suspension assembly which may operably couple the centerless wheel to the vehicle chassis via the wheel rim. The natural active suspension assembly may…
In a suspension control device, an acquisition unit acquires a target roll moment, a target pitch moment, and a target heave force that are calculated based on a vehicle motion model. A correction unit corrects the target pitch moment based on the target roll moment, and corrects the target heave…
The disclosure generally pertains to a robotic vehicle. An example robotic vehicle has a base platform that includes at least a chassis, an actuator, a sensor, and a controller. The chassis includes a first wheel that is attached to a first section of the chassis and further includes a second wheel…
A method to control an active shock absorber of a road vehicle. The active shock absorber is part of a suspension connecting a frame of the road vehicle to a hub of a wheel and has: a first element, which defines an end of the active shock absorber, a second element, which defines another end of…
An assembly for a wheel of a robotic vehicle and a method for overcoming an obstacle for said robotic vehicle. The assembly comprises a first arm portion and a second arm portion, the first arm portion being attachable to a chassis of the robotic vehicle at an attachment point and extending…
A robot according to an embodiment of the present disclosure may comprise: a base; a driving wheel protruding downward from the base; a plate spaced upward from the base; a through hole formed at the plate; a suspension bar including a shaft part rotatably connected to the base and vertically…
Aspects of the present invention relate to a method and to a control system for controlling an active suspension of a vehicle, the control system comprising one or more controllers, the control system configured to: determine whether a transient suspension disturbance to the vehicle is from within…
A method of controlling a vehicle may include determining a proximity to a stuck condition based on measured vehicle motion parameters and a wheel speed measured by a wheel speed sensor associated with one or more wheels of the vehicle. The method may further include generating a notification to a…
In a suspension system including a shock absorber having a damping-force changing mechanism for changing a magnitude of a damping force with respect to a relative movement of a sprung portion and an unsprung portion, the shock absorber being configured to generate the damping force with respect to…
A damper control system (22, 23, 24, 25) for suspension of an automotive vehicle (9) comprising a pitch prediction block (10) and a control calculation block (30). The pitch prediction block (10) receives the longitudinal speed, the master cylinder pressure and the engine power setpoint at an…
The invention concerns a system for controlling shock absorbers (22, 23, 24, 25) of a suspension of a motor vehicle (9) comprising a roll prediction block (10) and a control calculation block (30). The roll prediction block (10) receives the longitudinal speed and the steering wheel rotation speed…
The invention relates to a compressed air system (1) for a utility vehicle, which has a chassis air suspension system (2) as well as a cabin air suspension system (3). The control or regulation of both the chassis air suspension system (2) and the cabin air suspension system (3) is carried out by a…