A method for controlling an operating mode of a controller for at least one suspension component of an at least partially active suspension of a vehicle. In accordance with at least one control command provided by a user for steering the vehicle, a situation detection is carried out to detect a control situation in which the at least one suspension component of the suspension which should be at least partially actively controlled, can be potentially controlled, and in the event that a control situation is detected, at least one reactive controller for controlling the at least one suspension component is switched from a first operating mode to a second operating mode, the at least one reactive controller being switched into the second operating mode with an increased bandwidth and amplification when compared with the first operating mode.

A vehicle damper control method to reduce a contact shock includes: S10) estimating a future displacement of a damper of a vehicle; and S20) controlling a damping force of the damper based on the estimated future displacement of the damper.

A snowmobile including a chassis including a tunnel; a motor; at least one ski; an endless drive track; a rear suspension assembly including: a front suspension arm; a rear suspension arm; a pair of slide rails; a first rear shock absorber connected between the front suspension arm and the slide rails; and a second rear shock absorber connected between the rear suspension arm and the front suspension arm or the slide rails; at least one sensor for sensing an angular position of the front suspension arm or the rear suspension arm relative to one of the tunnel and a component of the rear suspension assembly near at least one of the front suspension arm and the rear suspension arm; and a controller communicatively connected to the sensor to receive electronic signals therefrom representative of the angular position.

A snowmobile including a right front suspension assembly and a left front suspension assembly, each of the left and right front suspension assembly including: a ski leg; an upper A-arm and a lower A-arm, the upper and lower A-arms being connected between the ski leg and the chassis; and a shock absorber connected between one of the upper and lower A-arms and the chassis; a first sensor connected between one of the upper and lower A-arms of the right front suspension assembly and the chassis to measure the angle therebetween; a second sensor connected between one of the upper and lower A-arms of the left front suspension assembly and the chassis to measure the angle therebetween; and a controller communicatively connected to the first sensor and the second sensor, the electronic signals representing angular position between the A-arms of the right and left front suspension assembly and the chassis.

An apparatus for controlling a suspension of a vehicle to improve high-speed driving stability of the vehicle includes: a sensor that obtains information about a road surface ahead the vehicle during travel of the vehicle; and a controller that derives a height value of the road surface from the information about the road surface, determines a state of the road surface based on a differential value of the derived height value, predicts vehicle behavior corresponding to the determined state of the road surface, and controls a damping force of the suspension based on the predicted vehicle behavior.

A snowmobile including a right front suspension assembly and a left front suspension assembly, each of the left and right front suspension assembly including: a ski leg; an upper A-arm and a lower A-arm, the upper and lower A-arms being connected between the ski leg and the chassis; and a shock absorber connected between one of the upper and lower A-arms and the chassis; a first sensor connected between one of the upper and lower A-arms of the right front suspension assembly and the chassis to measure the angle therebetween; a second sensor connected between one of the upper and lower A-arms of the left front suspension assembly and the chassis to measure the angle therebetween; and a controller communicatively connected to the first sensor and the second sensor, the electronic signals representing angular position between the A-arms of the right and left front suspension assembly and the chassis.