A control device includes an additional deceleration calculation unit that calculates an additional deceleration (G×add) to be applied to the vehicle based on the steering angle, a target control amount calculation unit that calculates the control amount for the vehicle behavior changing device based on the additional deceleration, a rough road level calculation unit that calculates a rough road level of a road based on a wheel speed, and a control amount correction unit that corrects the control amount based on the rough road level, the rough road level calculation unit being configured to correct the wheel speed so as to remove a change thereof caused by the cornering maneuver of the vehicle, and to calculate the rough road level by using the corrected wheel speed.

A braking system for a vehicle, the braking system includes a brake provided in a wheel of the vehicle and configured to restrain rotation of the wheel, and a brake force control device configured to control a brake force of the brake. The brake force control device includes a road-surface condition acquisition portion configured to acquire a road-surface condition indicative of a condition of a road surface where the vehicle travels, and in a case where the road-surface condition acquisition portion acquires a plurality of conditions as the road-surface condition, the brake force control device controls the brake force in a mode different from respective controls on the brake force based on the conditions.

A damping force control device 10 comprises vary damping shock absorbers, a detector, and a controller. Each of the shock absorbers sets damping coefficient from a minimum value to a maximum value in order to adjust damping force. The detector detects vertical vibration state quantity relating to vibration of the sprung mass. The controller performs an ordinary control for setting the damping coefficient based on the vertical vibration state quantity and according to a predetermined control law suitable for an assumption that all of the wheels touch ground. The controller performs, when at least one of the wheels is an ungrounded wheel which does not touch the ground and each of the other wheels is a grounded wheel which touches the ground, a specific control for setting the damping coefficient of the shock absorber corresponding to the grounded wheel to a first specific value greater than the minimum value.

An agricultural vehicle-trailer-combination includes a traction vehicle including an engine and at least one ground engagement mechanism. A trailer is coupled to the traction vehicle. A service brake is operably controlled by the engine to brake. The combination includes a sensor and a control unit disposed in communication with the sensor, wherein a slip or a slip gradient on the ground engagement mechanism is sensed between the ground engagement mechanism and the ground surface. A trailer brake disposed on the trailer is adjustably controlled by the control unit. The trailer brake is adjustably controlled when the service brake of the traction vehicle is actuated, and the trailer is braked by the trailer brake as a function of the slip or the slip gradient when the slip reaches or exceeds a predeterminable slip braking value or the slip gradient reaches a predeterminable slip gradient braking interval.

A control unit of a tire-mounted sensor determines whether a tire has been exchanged. When the tire has been exchanged, the control unit changes the threshold value of a road surface state determination condition used for detecting the road surface state from vibration data of the tire detected by an acceleration sensor of the tire-mounted sensor. For example, the threshold value of the road surface state determination condition is reset upon determining that the tire has been exchanged, by transmitting an instruction to the tire-mounted sensor through a tool at an automobile maintenance shop, etc.

A method of controlling and optimizing braking and directional control of a vehicle operated on a contaminated, compliant, or non-compliant surface. The method includes steps of: collecting data from a plurality of sensors, the data being indicative of a condition of the contaminated, compliant, or non-compliant surface; sending the data to a neural controller having an algorithm configured to process the data. The algorithm includes: determining optimum braking and directional control instructions for the vehicle, generating warnings and alerts based on the calculated optimum braking and directional control instructions, and sending the optimum braking and directional control instructions to a braking and steering system of the vehicle and the warnings and alerts to an alert and warning system of the vehicle. The method further includes adjusting the steering and directional control of the braking and steering system in accordance with the optimum braking and directional control instructions provided by the neural controller.

A vehicle includes a propulsion system configured to selectively drive at least one wheel of a plurality of wheels, a brake system configured to selectively brake at least one wheel of the plurality of wheels, and a dig lock controller in signal communication with the propulsion system and the brake system. The dig lock controller is configured to, based on a driver request, selectively perform a vehicle rotating dig lock operation by braking one wheel of the plurality of wheels while driving at least one other wheel of the plurality of wheels to move the vehicle laterally about a pivot point at least partially defined by the braked wheel.

A control device includes an additional deceleration calculation unit that calculates an additional deceleration (G×add) to be applied to the vehicle based on the steering angle, a target control amount calculation unit that calculates the control amount for the vehicle behavior changing device based on the additional deceleration, a rough road level calculation unit that calculates a rough road level of a road based on a wheel speed, and a control amount correction unit that corrects the control amount based on the rough road level, the rough road level calculation unit being configured to correct the wheel speed so as to remove a change thereof caused by the cornering maneuver of the vehicle, and to calculate the rough road level by using the corrected wheel speed.

A vehicle includes a suspension that supports a front wheel thereon, and a road surface state decision unit that decides a road surface state by detection of an acceleration sensor. The acceleration sensor is provided at a lower portion of the suspension and is capable of detecting an acceleration at least in a one-axis direction. The suspension is a front fork that supports the front wheel of the saddle riding vehicle. The front fork includes a bottom case that connects a lower portion of the front fork and an axle of the front wheel to each other. The acceleration sensor is attached to the bottom case.

A method for controlling a differential braking arrangement of a vehicle, said vehicle comprising at least one auxiliary braking arrangement and at least one differential braking arrangement, said auxiliary braking arrangement and said differential braking arrangement being connected to a pair of propelled wheels of said vehicle, wherein the differential braking arrangement is arranged to control a relative rotational speed between the pair of propelled wheels, wherein the method comprises the steps of receiving a signal indicative of a downhill slope for a road ahead of said vehicle; determining an inclination of said downhill slope; determining a braking power needed for the at least one auxiliary braking arrangement for preventing the vehicle speed of the vehicle from exceeding a predetermined speed limit when driving at the downhill slope; and engaging the at least one differential braking arrangement for reducing the relative rotational speed between the propelled wheels if the determined braking power of the at least one auxiliary braking arrangement is higher than a predetermined threshold.