Abstract: An inertial coasting monitoring system comprises aiding sensors onboard a vehicle, including a GNSS receiver and at least one non-GNSS aiding sensor, and an inertial measurement unit (IMU) that produces inertial measurements for the vehicle. A navigation system is coupled to the aiding sensors and the IMU. The navigation system comprises a main navigation filter and an inertial navigation system (INS). The navigation filter receives aiding data from the aiding sensors including GNSS aided data, and the INS receives inertial data from the IMU. An onboard inertial coasting monitor communicates with the navigation system, and receives inertial data from the IMU and aiding data from at least one non-GNSS aiding sensor. The inertial coasting monitor comprises inertial coast sub-filters and communicates with the navigation filter. The inertial coasting monitor performs a position detection process and/or a velocity detection process to detect if there is a fault in the aiding data.

Abstract: A rigid PUR/PIR foam is produced from at least one polyol which is synthesized from at least one polyhydric alcohol and at least one aromatic dicarboxylic acid, wherein the polyol is at least partially produced from renewable raw materials.

Abstract: A method for detecting failure of multiple satellite signals comprises receiving satellite signals in a GNSS receiver; processing the satellite signals in a Kalman filter to produce a navigation solution and sub-solutions; and performing at least one of a residual monitoring process, or a state corrections monitoring process. In the residual monitoring process, for each sub-solution, expected and actual residuals are computed and compared to determine whether the actual residuals are greater than a threshold; multiple erroneous measurements are detected when at least one actual residual is greater than the threshold for each sub-solution.

Abstract: A mapping system may include a display, a global positioning satellite (GPS) system to be carried by a vehicle and a controller. The controller is configured to determine a polygon representing a geographic boundary of a first region based on signals received from the GPS system of the vehicle as the vehicle travels to enclose the first region, to estimate geographic coordinates of a first number of consecutive rows within the polygon based on signals from the GPS system of the vehicle as the vehicle travels between a second number of consecutive rows less than the first number of consecutive rows and to output control signals causing the display to present a map comprising the polygon and lines within the polygon, the lines being based on the estimated geographic coordinates of the first number of consecutive rows.

Abstract: A steering angle error monitoring system may include a steering ground truth system, an odometry system and a steering controller. The odometry system may include a steering angle sensor and a speed sensor. The steering controller is configured to: determine a steering angle error based on a difference between an estimated turning rate based on signals from the odometry system over a period of time and an actual turning rate based on signals from the steering ground truth system over the period of time and output control signals to output a notification or adjust a steering routine based on the steering angle error.