A track for a track vehicle has sensor-receiving cavities disposed therein. Removeable sensors are placed in the sensor-receiving cavities for sensing characteristics of the track during operation.

A stability control system identifies an actionable condition, such as instability, in an off-road mobile machine, based upon an in-rubber tire sensor. A remedial action is identified, and a control signal is generated to control the mobile machine to take the remedial action.

A driving lane keeping control system includes a number of vehicles and a server. Each vehicle is configured to transmit wheel position information to the server. The server is configured to receive the wheel position information from each vehicle, to match the wheel position information with a detailed map to generate a moving trajectory of each vehicle, to analyze the generated moving trajectory of each vehicle to select an optimum moving trajectory, to generate virtual lane information based on the selected optimum moving trajectory, and to transmit the generated virtual lane information to at least one of the vehicles to enable the at least one vehicle to correct a driving position based on the virtual lane information.

A vehicle body side system has a second data communication unit that receives road surface data transmitted from a first data communication unit, a storage unit that stores teacher data, a road surface determination unit that determines a road surface state on a traveling road surface of a vehicle based on the road surface data and the teacher data, and a tire identification unit that identifies a predetermined type as an identification target and identifies which content the tire corresponds to in the type. The tire identification unit identifies the tire based on the identification data transmitted from the tire side device, and the road surface determination unit determines the road surface state using a teacher data corresponding to the tire identification result, when the road surface determination unit determines the road surface state.

A device for detecting an abnormal state of a tire includes a wireless transceiver spaced apart from the tire and coupled to a vehicle, where the wireless transceiver transmits a radio signal to a ground surface and acquires delay information required to receive a reflected wave from the ground surface, and a control module that calculates a reference distance between the wireless transceiver and the ground surface based on the delay information, and detects an abnormal state of the tire, based on a reference distance change.

A road surface condition estimation apparatus which accurately estimates a road surface condition even under changes of external environment such as weather, etc., and a road surface condition estimation method using the same is described. The road surface condition estimation apparatus includes: a sensor module which is mounted on a tire; a receiver module which receives sensing information measured by the sensor module; a processing module which extracts a parameter for estimating a road surface condition by analyzing the sensing information received by the receiver module; and an estimation module which estimates the road surface condition by using the parameter extracted by the processing module. The sensing information includes an acceleration of the tire.

A control apparatus for a vehicle includes tire-force sensors, a tire-force estimator, a turning-state detector, and a warning unit. The tire-force sensors are disposed on respective wheels of the vehicle. The tire-force estimator estimates tire forces of the respective wheels on the basis of sensor signals outputted from the respective tire-force sensors. The turning-state detector detects a turning state of the vehicle. The warning unit generates a warning in a mode that differs depending on the turning state when at least one of the wheels is estimated to be in a limit state on the basis of the estimated tire forces.

A vehicular driving assist system includes a plurality of vehicle speed sensors disposed at a vehicle, with each of the vehicle speed sensors generating an output representative of a respective sensed or estimated speed of the vehicle. A control includes circuitry and associated software. The circuitry of the control includes a processor for processing outputs of the plurality of vehicle speed sensors to determine a current speed of the vehicle. The control uses a multi-sensor filter to determine a single filtered current vehicle speed based on the outputs of the vehicle speed sensors.

The disclosure relates to a method for monitoring behavior of a tire of a vehicle in a rolling condition of the tire, comprising the steps of: acquiring a signal representative of an acceleration of a specified point of the tire, deriving from the signal a curve which represents a profile of the acceleration of the point during a revolution of the tire, determining a leading portion and a trailing portion of the curve, corresponding to an entry of the point into a footprint region of the tire and corresponding to an exit of the point from the footprint region of the tire, respectively, determining a first measure of a volatility of the signal in the leading portion and a second measure of a volatility of the signal in the trailing portion, and determining an indication of the behavior of the tire based on the first measure and the second measure.

A hydroplaning determination device that determines occurrence of a hydroplaning phenomenon in a vehicle includes a tire mount sensor including a vibration detection unit, a signal process unit and a transmission unit, and a vehicle body system including a receiver, a condition determination unit and a hydroplaning determination unit. The vibration detection unit is attached to a rear surface of a tire provided in a vehicle and outputs a detection signal according to a magnitude of vibration of the tire. The signal process unit generates a vibration data based on the detection signal. The hydroplaning determination unit determines, based on the vibration data, whether a hydroplaning phenomenon has occurred when the condition determination unit determines that a road surface condition is a wet condition in which a water film exists between the tire and a road surface.