Patent classifications
B60C2019/007
TIRE MANAGEMENT METHOD AND TIRE MANAGEMENT APPARATUS
The present tire management method includes detecting a temperature at predetermined intervals inside a tire air chamber, converting the temperature detected at predetermined intervals inside the tire air chamber into a first multiplication value of load times speed or a second multiplication value of the square of load times speed, and calculating an accumulation value by accumulating the first or second multiplication value for a predetermined period. The present tire management apparatus includes a temperature detector that detects a temperature at predetermined intervals inside a tire air chamber, a converter that converts the temperature detected by the temperature detector at predetermined intervals inside the tire air chamber into a first multiplication value of load times speed or a second multiplication value of the square of load times speed, and an accumulator that calculates an accumulation value by accumulating the first or second multiplication value for a predetermined period.
Tire deterioration inferring device and tire deterioration inferring method
A tire deterioration inferring (estimating) method uses a tire deterioration inferring device placed on the inner surface of a tire. The method has: a deformation velocity measurement step of measuring a tire deformation velocity, which is the deformation velocity of the tire while the tire is rotating, and obtaining time-series changes in the tire deformation velocity; a calculation step of calculating peak values of the tire deformation velocity from the time-series changes in the tire deformation velocity; and an inference step of inferring the degree of the deterioration of the tire by using a first peak value, which is a peak value of the tire deformation velocity before and at the stepping of the tire or at and after the kicking of the tire, the first peak value being in the time-series changes in the tire deformation velocity.
Wireless Determination of Alignment
Systems and methods for monitoring tire state or condition use a RFID low power tags embedded in a vehicle tire in conjunction with an RFID reader to determine whether the tire needs alignment, e.g., is misaligned, and whether the tire is over or under inflated. Both objectives may be accomplished by detecting the location of a tag in each tire, the tag spanning substantially the width of the tire. One or more additional tags may be located along the circumference of the tire as well to aid in determining inflation.
Tire monitoring based on inductive sensing
A vehicle tire monitoring methodology is based on embedding into a tire at least one tire inductor coil with multiple circumferential windings. A tire condition that causes deformation of the tire, causes deformation of the tire inductor coil. A tire condition (such as pressure, speed, damage or deterioration) can be monitored by acquiring tire coil response measurements corresponding to an inductive response to the tire condition that causes deformation of the tire, and thereby deformation of the tire inductor coil, and then converting the tire coil response into data representing the tire condition. Multiple circumferential tire inductor coils can be embedded (such as into the tread and/or sidewalls), so that tire monitoring can involve acquiring respective tire coil responses corresponding to a tire condition that causes differential tire coil responses (such as steering direction), which can be converted into data representing the tire condition.
PREDICTIVE VEHICLE OPERATING ASSISTANCE
Described herein are various systems and processes for predictive operating assistance of vehicles. The systems and techniques described herein may be applicable to vehicles such as vehicles operated by a driver, semi-autonomous vehicles, and/or autonomous vehicles. The assistance techniques described herein may be predictive. That is, the techniques allow for the prediction of non-optimal or dangerous operating conditions before the vehicle control is compromised. Accordingly, a warning may be provided and/or operation of the vehicle may be changed based on the predictive assistance determinations. In certain embodiments, the techniques described herein may provide warnings to a driver, may detect faults within the vehicle, may aid in route planning, may detect obstacles proximate to the vehicle, and/or may aid in the operation of the vehicle.
WHEEL RIM DEVICE
A wheel rim device is adapted to be signally connected to a host computer of a tire pressure device, is adapted for a tire pressure detector of the tire pressure device to be mounted thereon, and includes a wheel rim body, an electric power generating mechanism configured to be driven by the wheel rim body to rotate to generate electric power, and a tire pressure indicator. The tire pressure indicator includes a power storage module electrically coupled to the electric power generating mechanism to store the electric power. The tire pressure indicator is adapted to wirelessly receive a tire pressure value signal that indicates a tire pressure value from the host computer and is configured to emit light according to the tire pressure value.
WHEEL RIM DEVICE
A wheel rim device is adapted for a tire pressure detector to be mounted thereon, and includes a wheel rim body, an electric power generating mechanism, and a tire pressure indicator electrically coupled to the electric power generating mechanism. The tire pressure indicator includes a wireless communication module, a light emitting module, and a control module signally connected to the wireless communication module and the light emitting module. When the wheel rim body rotates, the electric power generating mechanism rotates and generates the electric power, the tire pressure indicator receives the electric power and is energized. The wireless communication module is adapted to wirelessly receive a tire pressure signal from the tire pressure detector. The control module is configured to obtain a tire pressure value from the tire pressure signal and control the light emitting module to emit light according to the tire pressure value.
TIRE MONITORING BASED ON INDUCTIVE SENSING USING EMBEDDED CIRCUMFERENTIAL TIRE INDUCTOR COIL(S)
A vehicle tire monitoring methodology is based on embedding into a tire at least one tire inductor coil with multiple circumferential windings. A tire condition that causes deformation of the tire, causes deformation of the tire inductor coil. A tire condition (such as pressure, speed, damage or deterioration) can be monitored by acquiring tire coil response measurements corresponding to an inductive response to the tire condition that causes deformation of the tire, and thereby deformation of the tire inductor coil, and then converting the tire coil response into data representing the tire condition. Multiple circumferential tire inductor coils can be embedded (such as into the tread and/or sidewalls), so that tire monitoring can involve acquiring respective tire coil responses corresponding to a tire condition that causes differential tire coil responses (such as steering direction), which can be converted into data representing the tire condition.