A system for controlling a suspension of a vehicle includes a plurality of sensors, an anti-roll moment module configured to determine a front-to-total anti-roll moment distribution based on at least a first operating parameter of the vehicle, at least one suspension actuator, and a suspension control module configured to control the at least one suspension actuator based on the determined front-to-total anti-roll moment distribution. A method of producing an anti-roll moment distribution module for a vehicle includes determining understeer characteristics of the vehicle, determining a maximum lateral acceleration of the vehicle, adjusting the understeer characteristics based on the determined maximum lateral acceleration, determining reference understeer characteristics, determining a plurality of reference yaw rates and a plurality of feedforward contributions using a non-linear quasi-static model of the vehicle, storing the reference yaw rates in a first look-up table, and storing the feedforward contributions in a second look-up table.

An electronic device and a method for determining whether a vehicle suspension system has degraded by positioning the electronic device in a vehicle includes activating a camera to initiate data capture within the electronic device. The camera is positioned to capture a change in a field of view during vehicle operation. The method includes calculating a vehicle suspension operating characteristic based on information captured by the camera and determining whether the calculated vehicle suspension operating characteristic exceeds a threshold. A signal indicative of suspension degradation is output when the threshold is exceeded.

An electronic anomaly detection unit for use in a vehicle includes an input component for capturing an input variable, wherein the input variable contains state information for at least one component of the vehicle, a memory component for storing state values based on the input variable, a selection component for selecting selected state values from the stored state values, an association component for associating the selected state values with predefined values, wherein the predefined values define a normal state of the component of the vehicle, and a decision component for deciding whether there is an anomalous behavior in the at least one component of the vehicle, based on the association, wherein one or more of the input component, the memory component, the selection component, the association component and the decision component are implemented in hardware.

An electronic anomaly detection unit for use in a vehicle includes an input component for capturing an input variable, wherein the input variable contains state information for at least one component of the vehicle, a memory component for storing state values based on the input variable, a selection component for selecting selected state values from the stored state values, an association component for associating the selected state values with predefined values, wherein the predefined values define a normal state of the component of the vehicle, and a decision component for deciding whether there is an anomalous behavior in the at least one component of the vehicle, based on the association, wherein one or more of the input component, the memory component, the selection component, the association component and the decision component are implemented in hardware.

A four-wheeled vehicle includes: a frame; two front suspension assemblies and two rear suspension assemblies connected to the frame; two front wheels operatively connected to corresponding ones of the two front suspension assemblies; two rear wheels operatively connected to corresponding ones of the two rear suspension assemblies; a motor connected to the frame; a front differential and a rear differential operatively connecting the motor to the two front wheels and the two rear wheels respectively; and a steering system. The steering system includes a front steering assembly for steering the front wheels and a rear steering assembly for steering the rear wheels. The front steering assembly includes a user-operated steering input device. The rear steering assembly includes an actuator operatively connected to the rear wheels and operable to modify a steering angle thereof. The actuator is mounted to the frame and is disposed completely rearward of the rear differential.

A detected displacement of a marker on a vehicle is determined based on image data captured while the vehicle traverses a displacement object of a ground surface. Then a health status of a suspension component of the vehicle is determined to be unhealthy based on comparing the detected displacement of the marker to a target displacement of the marker. The target displacement specifies displacement of the marker that indicates the suspension component is healthy. The vehicle is operated based on the suspension component being unhealthy.

A suspension system for a heavy vehicle, the system comprising a control circuitry configured to compare signals on current vertical position obtained from left and right level sensors and determine whether a current difference in vertical position between left and right leaf springs is greater than first threshold value; if determined difference is greater than first threshold value: determine, based on timing information related to signals provided by inertial measurement unit and left and right level sensors, whether the determined difference in vertical position between left and right leaf springs is related in time with signal from inertial measurement unit indicating that the angular velocity of wheel axle is greater than a second threshold; and, if determined difference in vertical position not related in time with signal indicating angular velocity of wheel axle is greater than second threshold, generate alarm signal indicative of detected or possibly detected leaf spring failure.

A vehicle comprising a first leaf spring connected to a chassis so as to, while deflecting, allow relative vertical movement between the chassis and a wheel axle and thereby also between the chassis and wheels, and a control circuitry configured to: compare the signal indicative of the actual path followed by the wind-up center with a representation of a reference path that the wind-up center of the first leaf spring should follow when the first leaf spring is well-functioning and deflects as intended; determine whether a difference between the actual path and the reference path is greater than a threshold value; and, in response to the determined difference greater than the threshold, generate an alarm signal indicative of a detected or possibly detected leaf spring failure.

A method for monitoring a vehicle (1) having a vehicle superstructure (2), a chassis (3) connected to the vehicle superstructure (2), and a monitoring unit (11) which monitors the chassis (3) for damage. In the event that chassis damage is detected, the monitoring unit produces a warning signal (S) by means of a warning signal generator, where the warning signal generator has at least one drive unit (10) by means of which the warning signal (S) is produced in the form of a tactile mechanical vibration.

A vehicle height adjustment device includes a changer, a vehicle speed obtainer, a vehicle height controller, and a malfunction detector. The changer is configured to change a relative position of a body of a vehicle, which includes a plurality of wheels, relative to an axle of each of the plurality of wheels of the vehicle. The vehicle speed obtainer is configured to obtain a vehicle speed, which is a traveling speed of the vehicle. The vehicle height controller is configured to control a vehicle height, which is a height of the body, based on the vehicle speed obtained by the vehicle speed obtainer. The malfunction detector is configured to detect a failure of the vehicle speed obtainer to obtain an accurate value of the vehicle speed.