Provided is a tire information detecting device capable of determining an attachment state of a sensor module based on a measurement value supplied from the sensor module installed in a pneumatic tire and accurately detecting tire information. A tire information detecting device (10) configured to detect tire information including at least one of wear of a tire, deformation of the tire, a road surface state, a ground contact state of the tire, presence of failure of the tire, a travel history of the tire, or a load state of the tire includes at least one sensor module (20) disposed on a tire inner surface and a determination unit (15) configured to determine an attachment state of the sensor module (20) based on a measurement value supplied from the sensor module (20).

A vehicle consumables management system includes a consumables remaining amount calculation unit receiving vehicle data including a brake pedal input signal, an outdoor temperature, a driving distance, a wheel velocity, and a wheel speed such as a wheel RPM, and calculating a remaining amount of a tire tread based on the driving distance and the wheel speed, and/or calculating a remaining amount of a brake pad based on at least one of the brake pedal input signal and vehicle acceleration and/or deceleration information, thereby being capable of accurately detecting the remaining amount of the tire tread of the vehicle without assistance of separate inspection equipment, and accurately predicting a wear amount and a remaining amount of the brake pad of the vehicle without additional expensive equipment.

An electric module for a bicycle according to an example embodiment of the present disclosure is equipped on the bicycle including a pedal configured to generate rotational energy and a driving wheel configured to rotate by receiving power, and the electric module includes a pedal rotation speed detector configured to measure a rotation speed of the pedal, a motor configured to rotate the driving wheel, a driving wheel rotation speed detector configured to measure a rotation speed of the driving wheel, a control device configured to determine whether a tire is abnormal based on the rotation speed of the pedal, a torque of the motor, and the rotation speed of the driving wheel, and a user interface device configured to display condition information of the tire provided by the control device.

Determining tread depth using data from a tire mounted sensor (TMS), including: determining, based on data collected by the tire mounted sensor, a tire deformation for a tire; determining, based on the tire deformation, an effective rolling radius of the tire; and determining, based at least on the effective rolling radius of the tire, an estimated tread depth for the tire.

A server as a sensing device is configured such that a calculation unit handles pieces of sampled vehicle data divided and assigned to data ranges set in advance, and calculates linear interpolation by using coordinate information on the vehicle data representing at least one of a longitudinal acceleration, a steering angle, and a lateral acceleration with respect to a relative difference in wheel speed between predetermined ones of front and rear wheels or right and left wheels of a vehicle, for the data ranges, that the calculation unit registers the vehicle data corresponding to a Y-intercept as to the relative difference in wheel speed between the predetermined wheels, based on the calculated linear interpolation, for the data ranges, and that a sensing unit senses air pressure decrease in a tire by using the difference in wheel speed between the predetermined wheels in the registered vehicle data, for the data ranges.

A tire state monitoring system includes: tire state acquisition devices installed on tires of a host vehicle, each of the tire state acquisition devices being configured to acquire a tire state quantity; a monitoring device configured to receive an output signal from each of the tire state acquisition devices and perform predetermined processing; and an alerting device configured to issue an alert to a following vehicle. In addition, the monitoring device causes the alerting device to operate when a predetermined abnormality has arisen in the tire state quantity.

A wheel suspension system and a method for controlling the system. The wheel suspension system includes a first axle provided with wheels and a second axle provided with wheels. The first axle is connected to a first driveshaft portion via a first differential 6a and the second axle is connected to a second driveshaft portion via a second differential 6b. The system further includes angular speed sensors designed to detect the rotational speed of the axles, and/or the rotational speed of the respective wheels. The angular speed sensors are connected to an electronic control unit (ECU) which is designed to calculate a difference between the angular speed of the first and second axles, and/or a difference between the angular speed of the respective wheels by the use of input data from the angular speed sensors. The speed difference can be used as an indication of different wheel radius of the wheels. The system includes a coupling, e.g. a dog clutch arrangement, arranged in the driveshaft and positioned between the first and second drive shaft portions for changing the first and second drive shaft portions between being drivingly connected and disconnected.

Methods and apparatus for assessing tire health through monitoring an effective tire rolling radius are disclosed. An example method includes obtaining velocity data for a vehicle from a global positioning system, obtaining angular speed data for a wheel of the vehicle, processing the velocity data and the angular speed data using a digital filter, and determining an effective rolling radius of a tire coupled to the wheel based on the processed velocity data and angular speed data.

The invention relates to a method for estimating a current wheel circumference of at least one wheel arranged on a vehicle, said method comprising: determining a reference speed of the vehicle at a point in time by means of a reference apparatus, detecting a wheel rotational speed of the at least one wheel at said point in time by means of a wheel rotational speed sensor, estimating a single wheel-circumference value based on the determined reference speed and the detected wheel rotational speed for said point in time by means of a calculation apparatus, storing at least the estimated single wheel-circumference value in a circular buffer for said point in time, estimating a current wheel circumference based on the single wheel-circumference values stored in the circular buffer by the calculation apparatus, outputting the estimated current wheel circumference as a wheel circumference signal.

A method for pairing a measurement module with a wheel of a vehicle including, for each angular orientation signal associated with a specific wheel received by a computer, the steps of transmitting, by the computer, a measurement signal or a request to transmit a measurement signal to each module, measuring, by the computer or each module, a value of at least one parameter differentiating the signal, performing repetitions of the transmissions of measurement signals for each angular orientation signal received by the computer and storing values of the parameter, pairing a specific wheel with a measurement module when the values are substantially constant with a variation of less than 10% for the values, each wheel being associated with a module at the end of the method.