A vehicle stabilizer system, including: a stabilizer device and a switching mechanism to switch a roll suppressing function by a stabilizer bar between an effective state in which the roll suppressing function is rendered effective and an ineffective state in which the roll suppressing function is rendered ineffective; and a controller configured to determine whether a lateral acceleration of a vehicle body is greater than a threshold lateral acceleration and control the switching mechanism to render the roll suppressing function effective when the lateral acceleration is greater than the threshold lateral acceleration and ineffective when the lateral acceleration is not greater than the threshold lateral acceleration, wherein the controller employs, as a determination lateral acceleration for determining whether the lateral acceleration is greater than the threshold lateral acceleration, a smaller one of an actual lateral acceleration and an estimated lateral acceleration estimated based on a turning degree of the vehicle.

Disclosed herein are a vehicle control system and controlling method thereof. The vehicle control system includes a plurality of sensors configured to measure a wheel speed, a steering angle, a yaw rate, and acceleration value, and a controller estimating the state of a vehicle based on the wheel speed, the steering angle, the yaw rate, and the acceleration value and updating a front and rear wheel stiffness of the vehicle when it is determined that the vehicle is running on an asymmetric friction surface from the estimated state of the vehicle.

A stabilizer bar assembly for a suspension system of a vehicle. The stabilizer bar assembly includes a first bar configured to be coupled to the vehicle suspension system proximate to a first wheel. A second bar is adjacent to the first bar. A coupling assembly is at an interface between the first bar and the second bar. The coupling assembly includes a magnetorheological material in contact with both the first bar and the second bar. The magnetorheological material is configured to transform from a fluid state to a viscoelastic solid state when subject to a magnetic field. A magnet is configured to apply the magnetic field to the magnetorheological material. In the viscoelastic solid state, the magnetorheological material resists relative movement between the first bar and the second bar.

An active roll control apparatus is provided. To adjust a stiffness value of the stabilizer bar by moving a stabilizer bar installed between left and right wheels of a vehicle and extending in a first direction and a stabilizer link connected to the stabilizer bar, the active roll control apparatus includes a sliding part having one side connected to the stabilizer bar and the other side connected to the stabilizer link to slide the stabilizer link in a second direction perpendicular to the first direction, and a movement restricting part installed at the sliding part to restrict movement when the sliding part slides.

Disclosed herein is a system comprising a memory, at least one sensor, and at least one processor. The at least one processor is configured to obtain vehicle information from the at least one sensor, and determine a vehicle operation mode based on the vehicle information. The processor will further format the vehicle operation mode in a computer readable format and present the vehicle operation mode in a computer readable format.

An anti-roll bar device with a variable rigidity has a first arm assembly having multiple first joining units, a second arm assembly having multiple second joining units, and a variable rigidity unit mounted between the first arm assembly and the second arm assembly and having multiple abutment portions and a variable rigidity coefficient. The first and second joining units are staggered with each other annularly and abut the abutment portions. When a vehicle passes a bumpy terrain, a slight force is exerted on the variable rigidity unit and is absorbed by the variable rigidity unit, such that the vehicle can be kept from tilting and shaking up and down. When the vehicle is in cornering, a larger force is exerted on the variable rigidity unit to increase a rigidity of the variable rigidity unit, such that the variable rigidity unit can transfer torques to keep the vehicle from tilting.

A wheel suspension unit is disclosed. The wheel suspension unit includes a stabilizer having a first end and a second end, a wheel suspension element, and a piston-cylinder unit. The piston-cylinder unit connects an end of the stabilizer to the wheel suspension element. The piston-cylinder unit is a roll damper. The roll damper includes a plurality of roll damping valves arranged in a piston of the roll damper. Each of the plurality of roll damping valves has a non-return valve and an adjustable throttle valve. The non-return valve is arranged in series with the adjustable throttle valve.

The invention relates to a stabilizer assembly of a two-track vehicle for stabilizing a rolling movement, the stabilizer assembly being operable on at least two different spring characteristics, comprising a first and a second stabilizer half, each coupled to a wheel of the vehicle, wherein the first and the second stabilizer halves are coupled such that they can rotate relative to each other about their longitudinal axis by means of a spring element, whereby the stabilizer is operable with a first spring characteristic, and wherein the first and the second stabilizer halves can be hydraulically coupled such that they can rotate relative to each other about their longitudinal axis by means of a hydraulic actuator, whereby the stabilizer is operable using at least one second spring characteristic. The actuator comprises at least two work chambers which are filled with a hydraulic medium and coupled to each other by a fluid-conducting connection, and the actuator comprises a transmission unit which is designed such that a rotational movement of the stabilizer halves can be converted into a translational movement of an intermediate element arranged between the two work chambers, and a volume flow of the hydraulic medium from the one work chamber into the other work chamber can thus be produced.

Disclosed herein is a sway bar system comprising a damping link that couples a first end of a sway bar to a first location on a vehicle. The damping link is comprised of a body comprising a damping chamber and a reservoir. There is also a through shaft coupled to a piston, where the piston divides the chamber into a first chamber and a second chamber. A high-pressure line is fluidly coupled with the chamber and the reservoir and allows fluid to flow from the first chamber and the second chamber to the reservoir. A low-pressure line is fluidly coupled with the chamber and the reservoir and allows fluid to flow from the reservoir to the first chamber and the second chamber. The high-pressure line and the low-pressure line assist in self-centering the sway bar.

Provided is an active roll control apparatus for controlling a stiffness value of a stabilizer bar by moving the stabilizer bar, which is installed between left and right wheels of a vehicle and extends in a first direction, and a stabilizer link connected with the stabilizer bar to improve turning stability of the vehicle by actively controlling roll stiffness of the vehicle. The active roll control apparatus includes rotating shafts having one ends connected to both ends of the stabilizer bar, moving units into which the rotating shafts are inserted and which are movable along outer side surfaces of the rotating shafts in a second direction perpendicular to the first direction, and a driving unit configured to rotate the rotating shafts to move the moving units.