An on-trip monitoring system for an on-demand transportation service can monitor live log data from autonomous vehicles (AVs) operating throughout a given region. The system can determine a degradation level for a respective AV based on the live log data, and when the degradation level exceeds a determined threshold, the system can transmit an update command to the respective AV to service or decommission the respective AV.

Autonomous vehicle degradation level monitoring

Systems and methods for controlling the motion of an autonomous vehicle are provided. In one example embodiment, one or more computing devices on-board an autonomous vehicle receive one or more constraint files including constraint data descriptive of one or more geographic identifiers (e.g., a polygon) and an application type (e.g., partial inclusion, complete inclusion, partial exclusion, complete exclusion) associated with each of the one or more geographic identifiers. Map data descriptive of the identity and location of different travel ways within the surrounding environment of the autonomous vehicle is accessed. A travel route for navigating the autonomous vehicle is determined, wherein the travel route is determined at least in part from the map data evaluated relative to the constraint data. Motion of the autonomous vehicle can be controlled based at least in part on the determined travel route.

Navigational constraints for autonomous vehicles

An on-demand transportation management service can perform a selection process between a set of safety-driven autonomous vehicles (SDAVs), fully autonomous vehicles (FAVs), and human-driven vehicles (HDVs) to service transport requests based on a variety of selection parameters.

Vehicle selection for on-demand transportation services

A risk regression system can computationally determine aggregate risk values for each of a plurality of routes for each transport request of an on-demand transportation service. The aggregate risk values can be based on fractional risk quantities determined through, for example, autonomous vehicle logs form autonomous vehicles operating throughout a given region. Based on the aggregate risk values, the risk regression system can facilitate vehicle matching between autonomous vehicles and human-driven vehicles.

Path segment risk regression system for on-demand transportation services

An autonomous vehicle software management system can distribute AV software versions to safety-driven autonomous vehicles (SDAVs) operating within a given region. The system can receive log data from the SDAVs indicating any trip anomalies of the SDAVs while executing the AV software version. When a predetermined safety standard has been met based on the log data, the system can verify the AV software version for execution on fully autonomous vehicles (FAVs) operating within the given region.

Software version verification for autonomous vehicles

A system for sensing tire parameters in the remote monitoring and management of a fleet of autonomous vehicles is provided. The system includes at least one autonomous vehicle that is supported by at least one tire. At least one sensor is affixed to the tire for sensing tire parameters. Means are provided for communicating data generated by the sensor to a control system on the vehicle, and a mobile network receives the sensor data from the vehicle control system. A fleet management server receives the sensor data from the mobile network, and means are provided to generate commands for the autonomous vehicle in real time based upon the data generated by the sensor. A method for sensing tire parameters in the remote monitoring and management of a fleet of autonomous vehicles is also provided.

System and method for tire sensor-based autonomous vehicle fleet management

A method for forming an adhesion joint between a cord and a rubber matrix is disclosed. The method comprises the steps of providing a cord having an initial surface; texturing the initial surface such that the resulting surface is rougher than the initial surface; and inserting the cord into a rubber matrix. Also, a pneumatic tire or another article of manufacture comprising a reinforcing structure reinforced with a cord is disclosed. The cord has a surface modified for increasing adherence of the cord to a rubber matrix.

Texturing of a reinforcing cord for a pneumatic tire

Reinventing the Wheel Innovations in the Tyre Industry

A tire wear state estimation system and method is disclosed In one aspect of the invention, system comprises at least one tire (30) for supporting a vehicle and an at least tri-axial sensor (328) mounted to the tire (30), the tri-axial sensor (328) and the system being configured for measuring tire inflation pressure and generating tire inflation pressure data, measuring a tire vertical mode frequency and generating tire vertical mode frequency data, generating tire-specific frequency mode coefficients using tire-specific identification data, and calculating an estimation of a tire wear state based upon the tire inflation pressure data, the vertical mode frequency data, and the tire-specific frequency mode coefficients Also, an assembly for determining operating parameters of a tire is disclosed The assembly comprises a tire (30) and a tripod sensor (328) mounted within an inner cavity of the tire underneath a crown portion (16) of the tire (30) and an innerliner (315) on which the tripod sensor (328) is mounted, the tripod sensor (328) including a tri-axial sensor

Tire wear estimation system and method

An assembly determines operating parameters of a tire. The assembly includes a tripod sensor mounted within an inner cavity of the tire underneath a crown portion and an innerliner on which the tripod sensor is mounted. The tripod sensor includes a tri-axial accelerometer for creating a circumferential signal for determining slip ratio, a lateral signal for determining a slip angle, and a radial signal for determining load on the tire.

Etienne Besnoin

Papers

System and method for tire sensor-based autonomous vehicle fleet management

Texturing of a reinforcing cord for a pneumatic tire

Reinventing the Wheel Innovations in the Tyre Industry

Tire wear estimation system and method

Tire sensor for a tire monitoring system