Patent application number | Description | Published |
20090026006 | Foaming liquid material and use thereof for reducing noise in mounted tires - The present invention is directed to a method of reducing noise transmission in a pneumatic tire and wheel assembly comprising an inflation cavity, the method comprising the step of adding to the inflation cavity from about 0.1 to about 1 volume percent, based on the volume of the inflation cavity, of a repeatably foamable liquid. | 01-29-2009 |
20140163816 | TIRE SLIP ANGLE ESTIMATION SYSTEM AND METHOD - A slip angle estimation includes a tire having one or more first and second strain sensor(s) affixed to opposite respective first and second tire sidewalls. The sensors measure a tire strain in their respective sidewalls and generate a sidewall strain signal indicative of strain present within the tire sidewalls. A slip angle estimation is made by estimating the difference in the signal slope of the sensors in the opposite sidewalls. A load estimation is further made for the tire from the inner and outer sidewall strain signals and the load estimation is used in the slip angle estimation. | 06-12-2014 |
20140166168 | AUTONOMOUS, PLUG-IN WEAR OR ABRASION SENSING SYSTEM - An autonomous, plug-in and sacrificial wear sensing system including at least one wearable sensor, autonomous energy supply and means for remote radio-frequency communication. The system includes a tubular tread wear indicator body embedded within a tire tread element. The indicator body is centered within the tread element and is shaped in the form of a tube. The sensor element operably changes in at least one electromagnetically measurable physical parameter as the tread element wears radially inward. The system provides a full tread wear system including the algorithm for signal and data processing, buffering and decision making routines to remotely provide vehicle driver or owner with current tire wear status, tire type—vehicle—season match and with real-time estimation of remaining tire life. | 06-19-2014 |
20140277926 | DYNAMIC TIRE SLIP ANGLE ESTIMATION SYSTEM AND METHOD - A dynamic slip angle estimation system and method uses measured vehicle acceleration and yaw rate parameters in estimating a tire slip angle. From load sensor(s) mounted to the vehicle tire, a tire static load estimation is made and a tire slip angle is calculated at low frequency. The vehicle center of gravity longitudinal position and yaw moment of inertia is estimated from the static load on the vehicle tires. An observer calculates tire axle forces based on the vehicle acceleration and yaw rate. From the tire axle force estimations, the vehicle moment of inertia and vehicle center of gravity longitudinal position estimate and a low frequency direct measurement of the tire slip angle, a dynamic tire slip angle calculation is made. | 09-18-2014 |
20140278040 | VEHICLE DYNAMIC LOAD ESTIMATION SYSTEM AND METHOD - A dynamic load estimation system and method is provided, the system including a tire supporting a vehicle; a vehicle-mounted acceleration sensor for determining a vehicle lateral acceleration and a vehicle longitudinal acceleration; a roll angle calculating model for determining a vehicle roll angle; a roll rate calculating model for determining a vehicle roll rate; a static normal load calculation model for calculating a measured static normal load; and a dynamic tire load estimation model for calculating an estimated dynamic load on the tire from the measured static normal load, the vehicle roll angle, the vehicle roll rate, the vehicle lateral acceleration and the vehicle longitudinal acceleration. | 09-18-2014 |
20160075189 | TIRE TREAD WEAR SENSOR SYSTEM - A system monitors wear of a vehicle part. The system includes a piezoelectric disk electrically connected to a radio frequency circuit for receiving electrical current from the piezoelectric disk and an antenna for actively transmitting a signal from the radio frequency circuit to a microprocessor such that, when the piezoelectric disk contacts a surface through wear, the radio frequency circuit actively generates a signal received by the microprocessor. | 03-17-2016 |
20160129734 | MOBILE-PHONE BASED DATA PROCESSING SYSTEM - A system monitors and controls pressure of vehicle parts. The system consists of a fleet of vehicles, each vehicle of the fleet having a cab and a trailer; a controller maintaining a wireless server and database for the fleet of vehicles; and a cellular device transmitting data to and from an electronic control unit of the cab of each vehicle and the controller. Each trailer has an electronic control unit transmitting data to/from the electronic control unit of each corresponding cab. | 05-12-2016 |
20160129737 | TIRE WEAR COMPENSATED LOAD ESTIMATION SYSTEM AND METHOD - A system and method of estimating a load bearing on a vehicle tire includes an inflation pressure measuring sensor for measuring an inflation pressure level within a tire cavity; a contact patch length sensor measuring the rolling contact patch length of the tire; a tire rolling speed sensor measuring a rolling speed of the tire; and a tire wear state estimation calculator estimating a tire wear state of a tread of the tire. An artificial neural network estimates a tire load from the contact patch length, the inflation pressure level, and the tire rolling speed by utilizing as a compensation factor input the estimated tire wear state. | 05-12-2016 |
20160133067 | MOBILE-PHONE ENABLED DATA PROCESSING SYSTEM - A system monitors and controls pressure of vehicle parts. The system consists of: a fleet of vehicles, each vehicle of the fleet having a cab and a trailer; a controller maintaining a wireless server and database for the fleet of vehicles; a first cellular device transmitting data to and from an electronic control unit of the cab of each vehicle and the controller; and a second cellular device transmitting data to and from an electronic control unit of the trailer of each vehicle and the controller. The first cellular device and the second cellular device each utilize a publicly accessible cellular network for communication with the controller. | 05-12-2016 |