The invention relates to a signal-processing device (402) for a vehicle having an ABS unit (404) and multiple wheels, each of which is assigned a sensor (S1, S2, S3, S4) for wheel signal generation. The signal-processing device (402) is designed to detect (602) a failure of a wheel signal, to form (604) a substitute signal for the failed wheel signal using the wheel signal of at least one sensor assigned to a wheel that is not affected by the failure, and to supply (606) the substitute signal to the ABS unit (404). The invention also relates to an ABS system (400) having the signal-processing device (402) and an ABS unit (404), a vehicle having the ABS system (400), a signal-processing method for a vehicle having an ABS unit (404), a computer programme having computer code for carrying out the signal-processing method, as well as a control unit containing the computer programme.

A vehicle brake fluid pressure control device includes a wheel speed detection device, a braking force control device, and an electronic control device. The electronic control device includes a change amount calculation unit, a change amount determination unit that determines a positive or negative sign of a sign of the amount of change, and a brake control unit that controls the braking force control device, and during a first decompression control, in which a braking force acting on the wheel brake is further reduced by a decompression amount larger than a decompression amount of the brake fluid pressure in the anti-lock brake control in a state where the braking force acting on the wheel brake is reduced in the anti-lock brake control, when the amount of change is determined to be a positive value by the change amount determination unit, the brake control unit stops the first decompression control.

A vehicle brake fluid pressure control device includes a wheel speed detection device, a braking force control device, and an electronic control device. The electronic control device includes a change amount calculation unit, a change amount determination unit that determines a positive or negative sign of a sign of the amount of change, and a brake control unit that controls the braking force control device, and during a first decompression control, in which a braking force acting on the wheel brake is further reduced by a decompression amount larger than a decompression amount of the brake fluid pressure in the anti-lock brake control in a state where the braking force acting on the wheel brake is reduced in the anti-lock brake control, when the amount of change is determined to be a positive value by the change amount determination unit, the brake control unit stops the first decompression control.

Disclosed is a vehicle attitude control system for controlling the attitude of a vehicle in which a road wheel suspension is configured such that a roll axis of a vehicle body inclines downwardly in a forward direction. The vehicle attitude control system includes: a lateral acceleration sensor operable to detect a lateral acceleration; a brake actuator operable to apply a braking force; and a brake control device operable, based on a traveling state of the vehicle, to generate the braking force, wherein the brake control device is configured to execute vehicle attitude control of applying, to an inner rear road wheel, a larger braking force when the lateral acceleration of the vehicle is relatively large than when the lateral acceleration is relatively small, thereby suppressing uplift of an inner rear portion of the vehicle body.

A wheel slip control method for a vehicle is provided, and includes estimating equivalent inertia information of a driving system based on operation information of the driving system while a vehicle travels, determining whether the slip of a drive wheel occurs from the estimated equivalent inertia information of the driving system, determining whether the drive wheel is in an uneven wheel slip state where the slip occurs only in one of a left wheel and a right wheel of the drive wheel from a left wheel speed and a right wheel speed detected by a sensor, if it is determined that the slip of the drive wheel occurs, and controlling an operation of a braking device such that a braking force is applied to the vehicle wheel in which the slip occurs, if it is determined that the vehicle wheel is in the uneven wheel slip state.

Provided is a control apparatus, a control method, and a control system for an electric vehicle that can prevent or reduce an unnecessary torque fluctuation on a wheel not targeted for slip control. A control apparatus for an electric vehicle limits a torque to be output to a non-target wheel according to a torque output to a target wheel after target wheel slip control is started, and updates a limit value of the torque to be output to the non-target wheel when a fluctuation range of the torque output to the target wheel falls within a predetermined range during the limitation.

Provided is a control apparatus, a control method, and a control system for an electric vehicle that can prevent or reduce an unnecessary torque fluctuation on a wheel not targeted for slip control. A control apparatus for an electric vehicle limits a torque to be output to a non-target wheel according to a torque output to a target wheel after target wheel slip control is started, and updates a limit value of the torque to be output to the non-target wheel when a fluctuation range of the torque output to the target wheel falls within a predetermined range during the limitation.

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 method performed by a vehicle system for handling conditions of a road on which a vehicle travels. The vehicle system detect that a first part of the road has a first condition which is different from a second condition of a second part of the road. The vehicle system estimates friction of the first part and evaluates the estimated friction. The vehicle system determines that the vehicle's motion should be adjusted when a result of the evaluation indicates that the estimated friction of the first part of the road affects the vehicle's expected motion, and initiates adjustment of the vehicle's motion on the road as determined.

A method performed by a vehicle system for handling conditions of a road on which a vehicle travels. The vehicle system detect that a first part of the road has a first condition which is different from a second condition of a second part of the road. The vehicle system estimates friction of the first part and evaluates the estimated friction. The vehicle system determines that the vehicle's motion should be adjusted when a result of the evaluation indicates that the estimated friction of the first part of the road affects the vehicle's expected motion, and initiates adjustment of the vehicle's motion on the road as determined.