Disclosed is a method for detecting an inclination, relative to the ground, of a wheel of a motor vehicle which includes: measuring two accelerations by using two accelerometers mounted on the wheel and suitable for measuring the acceleration of the wheel along a first axis and along a second axis, respectively, the first axis and the second axis being in the plane of the wheel and orthogonal, and calculating the components of a gravity vector in a reference frame formed by the first axis and the second axis from the measurements of acceleration, determining a modulus of the gravity vector from the calculated components, and determining a position of inclination of the wheel relative to the ground by comparing the value of the modulus of the gravity vector with a predetermined value.

A damper control device and a suspension device of the present invention controls a damping force of the damper based on a bank angle. Since a degree of the bank angle is a measure of easiness of occurrence of highside, and the damping force of dampers is controlled based on the bank angle in the damper control device and the suspension device, the damping force of the dampers can be appropriately controlled in accordance with a situation in which the highside is easy to occur.

A vehicle is configured to travel, when a vehicle velocity is within a velocity range from not less than a first velocity of at least zero to not more than a second velocity larger than the first velocity, in a mode in which a vehicle body is leaned by a lean mechanism according to an input into an operation input unit, and a wheel angle of a turn wheel changes following a lean of the vehicle body. A natural frequency of roll oscillation of the vehicle body is either within a range of smaller than a reference frequency or within a range of larger than the reference frequency, the reference frequency being a frequency at which oscillation of the wheel angle of the turn wheel has phase delay of 90 degrees relative to the roll oscillation of the vehicle body in its width direction.

A vehicle includes: a vehicle body; three or more wheels; an operation input unit to be operated to input a turning direction; and a lean mechanism for leaning the vehicle body in its width direction. Within at least partial range of vehicle velocity, the vehicle is configured to travel in a mode in which the vehicle body is leaned by the lean mechanism according to an input into the operation input unit, and a steering angle of a steered wheel changes following a lean of the vehicle body. And, the vehicle includes a changing device for changing a turn resistance force acting between the vehicle body and the steered wheel.

A two-wheel suspension mechanism includes a control frame having therein a left channel and a right channel; a control valve disposed at the control frame and connected between the left and right channels; a left retractable cylinder having a left external-cylinder and a left internal-cylinder, with the left external-cylinder pivotally connected to the control frame, and the left internal-cylinder retractable into the left external-cylinder, defining a left retractable space between the left external-cylinder and the left internal-cylinder, allowing the left retractable space to communicate with the left channel; a right retractable cylinder having a right external-cylinder and a right internal-cylinder, with the right external-cylinder pivotally connected to the control frame, and the right internal-cylinder retractable into the right external-cylinder, defining a right retractable space between the right external-cylinder and the right internal-cylinder, allowing the right retractable space to communicate with the right channel.

The industrial vehicle includes a body, an axle, a lateral acceleration sensor determining lateral acceleration, an actuator temporally restricting pivoting of the axle, a vehicle speed limiter limiting vehicle traveling speed, and a controller driving the actuator based on the lateral acceleration determined by the lateral acceleration sensor to temporally restrict pivoting of the axle while the industrial vehicle is being turned and to limit traveling speed of the industrial vehicle based on lateral acceleration determined by the lateral acceleration sensor when the industrial vehicle is turned. In the controller, a first lateral acceleration threshold value which is used in judging whether traveling speed of the industrial vehicle should be limited is set smaller than a second lateral acceleration threshold value which is used in judging whether pivoting of the axle should be temporally restricted. An upper limit value is set in deceleration in limiting traveling speed of the industrial vehicle.

An industrial vehicle includes a body, an axle pivotally supported by the body, a lateral acceleration sensor determining lateral acceleration applied to the body when the industrial vehicle is turned, an actuator temporally restricting pivoting of the axle while the industrial vehicle is being turned, a vehicle speed limiter limiting traveling speed of the industrial vehicle when the industrial vehicle is turned, and a controller driving the actuator based on the lateral acceleration determined by the lateral acceleration sensor to temporally restrict pivoting of the axle and to limit traveling speed of the industrial vehicle based on the lateral acceleration. In the controller a first lateral acceleration threshold value which is used in judging whether traveling speed of the industrial vehicle should be limited is set larger than a second lateral acceleration threshold value which is used in judging whether pivoting of the axle should be temporally restricted.

A work vehicle is provided having a first pair of wheels mounted to a vehicle body via a fixed axle and a second pair of wheels mounted to the vehicle body via a pivotable axle. The work vehicle includes an anti-rollover system with at least two load sensors mounted at an axle housing near different ones of the first pair of wheels to measure a downward force borne by each respective wheel, the at least two load sensors being operationally connected to a processor. The processor is configured to send anti-rollover commands to the anti-rollover system based on signals received from the at least two load sensors.

A system and method for utilizing an active valve customizable tune application is disclosed. The system includes a mobile device having a memory, an active valve tune application, and at least one processor. The processor initiates the active valve tune application, receives, from a database, an active valve suspension tune having a number of performance range adjustable settings, and receives user related input information. At least one of the performance range adjustable settings is modified based on the received input information to generate a modified active valve suspension tune. The system includes an active suspension of a vehicle, wherein the modified active valve suspension tune is implemented by the active suspension.

A method of and system for detecting absolute acceleration along various axes relative to a desired movement vector while moving relative to a gravity source includes steps of determining a vertical acceleration, perpendicular to the desired movement vector and substantially anti-parallel to a gravitational acceleration due to the gravity source; determining a longitudinal acceleration, parallel to the desired movement vector and to output at vertical acceleration signal and a longitudinal acceleration signal; determining an inclination of the desired movement vector relative to the gravitational acceleration; and processing the vertical acceleration signal, the longitudinal acceleration signal, and the inclination signal to produce an absolute vertical acceleration signal and an absolute longitudinal acceleration signal.