The vehicle behavior control device comprises a brake control system (18) capable of applying different braking forces, respectively, to right and left road wheels of a vehicle (1). The vehicle behavior control device further comprises: a steering angle sensor (8); a vehicle speed sensor (10); a yaw rate sensor (12); and a yaw moment setting part (22) in PCM (14) configured to decide a target yaw rate of the vehicle based on a steering angle and a vehicle speed, and set, based on a change rate of a difference between an actual yaw rate and the target yaw rate, a yaw moment oriented in a direction opposite to that of the actual yaw rate of the vehicle, as a target yaw moment, whereby the brake control system can regulate the braking forces of the road wheels so as to apply the target yaw moment to the vehicle.

A vehicle control ECU determines a road surface μ state of a forward road of a vehicle based on a front image. The vehicle control ECU changes, in accordance with a determined result, a split determination threshold value which is used to determine whether to perform a vehicle behavior stabilization control for stabilizing a behavior of the vehicle.

An apparatus for estimating a friction coefficient of a road surface is provided. The apparatus includes a current sensor configured to measure a control current value of a rear wheel steering (RWS) motor, a stroke sensor configured to measure a stroke value indicating a movement amount of a rear wheel steering link, and a controller configured to estimate the friction coefficient of the road surface based on the control current value measured by the current sensor and the stroke value measured by the stroke sensor.

A dry vacuum pump is provided, including an oil sump; a pumping stage; two rotating shafts respectively holding a rotor extending in the pumping stage, the rotor being configured to rotate in a synchronised manner in opposite directions in order to carry a gas to be pumped between an intake and a discharge of the pump, the two rotating shafts being supported by bearings lubricated by a lubricant contained in the oil sump; and a lubricant sealing device inserted between the oil sump and a pumping stage at each shaft passage, the sealing device including a disc-shaped deflector mounted on a shaft of the two rotating shafts for rotation therewith, and a disc of the deflector has an annular end on a periphery thereof, extending towards the pumping stage, forming a retaining recess.

When a vehicle experiences an instability event, an instability event trigger (e.g., a failed modulator, unexpected yaw or lateral acceleration, unexpected steering wheel position change, etc.) is monitored and the magnitude thereof is compared to a corresponding predetermined threshold above which corrective action is initiated. Depending on the magnitude and type of instability trigger, one or more wheel ends are identified as candidates for brake activation. Braking force at the identified wheel ends is gradually increased until the vehicle becomes stable or comes to a stop.

A vehicle disturbance handling system to handle a disturbance that is an external force that acts on a vehicle and causes deflection of the vehicle, including: a disturbance detecting portion configured to determine an occurrence of the disturbance and to estimate a degree of influence of the disturbance; and a disturbance handling portion configured to handle the disturbance based on the estimated degree, wherein, when it is determined that the disturbance is occurring, the handling portion controls a brake device and a steering device of the vehicle to handle the disturbance, and wherein the handling portion is configured to determine a disturbance-handling braking force, which is a braking force that should be applied to the vehicle by the brake device to reduce the influence of the disturbance, and to gradually decrease the disturbance-handling braking force with a lapse of time from a time point of the occurrence of the disturbance.

An over actuated system capable of controlling wheel parameters, such as speed (e.g., by torque and braking), steering angles, caster angles, camber angles, and toe angles, of wheels in an associated vehicle. The system may determine the associated vehicle is in a rollover state and adjust wheel parameters to prevent vehicle rollover. Additionally, the system may determine a driving state and dynamically adjust wheel parameters to optimize driving, including, for example, cornering and parking. Such a system may also dynamically detect wheel misalignment and provide alignment and/or corrective driving solutions. Further, by utilizing degenerate solutions for driving, the system may also estimate tire-surface parameterization data for various road surfaces and make such estimates available for other vehicles via a network.

A method for determining a safety-critical yawing motion of a vehicle includes comparing a specification signal representing an ascertained setpoint yaw rate of the vehicle for an anticipated trajectory of the vehicle to a measuring signal representing an instantaneous yaw rate of the vehicle measured based on an actual trajectory of the vehicle, thereby generating a comparison signal; checking whether an amplitude of the comparison signal exceeds a first threshold value and whether a frequency of the comparison signal exceeds a second threshold value; and, in response to the amplitude exceeding the first threshold and the frequency exceeding the second threshold, outputting a yawing-motion signal indicating presence of the safety-critical yawing motion of the vehicle.

A vehicle control ECU determines a road surface state of a forward road of a vehicle based on a front image. The vehicle control ECU changes, in accordance with a determined result, a split determination threshold value which is used to determine whether to perform a vehicle behavior stabilization control for stabilizing a behavior of the vehicle.

An integrated control system for a vehicle is provided. The system includes a friction coefficient calculation unit that calculates friction coefficients of left side and right side road surfaces, respectively, based on vehicle wheel state information and a predetermined setting information collected during ABS operation. A feedforward braking pressure calculation unit calculates a feedforward braking pressure of each vehicle wheel using the friction coefficients. An ABS braking pressure calculation unit calculates an ABS braking pressure of the each vehicle wheel based on the feedforward braking pressure and slip rate information. A rear wheel steering control amount calculation unit calculates a rear wheel steering control amount for yaw compensation using the ABS braking pressure of each vehicle wheel and a rear wheel steering controller executes a rear wheel steering control according to the rear wheel steering control amount.