Abstract: A Vehicle Safety Management System (“VSM”) detects safe driving behavior in a vehicle. The system includes a plurality of unsafe driving events, including tailgating, frequent lane changes, speed limit violation, speed limit violation over a curved segment of road, rapid acceleration from a start, and rapid deceleration to a stop. The vehicle is equipped with an event detection module. The event detection module includes a circuit that acquires vehicle data for parameters associated with movement of the vehicle. The event detection module also includes a processor for executing algorithms that determine whether movement of the vehicle meets one or more pre-determined conditions. If the pre-determined conditions are met, event data for one or more unsafe driving events are generated. The event detection module includes a transceiver to send and receive data between the vehicle and a server.

Abstract: A Vehicle Safety Management System (“VSM”) detects safe driving behavior in a vehicle. The system includes a plurality of unsafe driving events, including tailgating, frequent lane changes, speed limit violation, speed limit violation over a curved segment of road, rapid acceleration from a start, and rapid deceleration to a stop. The vehicle is equipped with an event detection module. The event detection module includes a circuit that acquires vehicle data for parameters associated with movement of the vehicle. The event detection module also includes a processor for executing algorithms that determine whether movement of the vehicle meets one or more pre-determined conditions. If the pre-determined conditions are met, event data for one or more unsafe driving events are generated. The event detection module includes a transceiver to send and receive data between the vehicle and a server.

Abstract: The present invention enables a vehicle navigation system to automatically compensate for odometer measurement errors due to changes in tire size and/or slip, and to avoid odometer recalibration when slip is present. These capabilities improve the accuracy and reliability of the vehicle navigation system. Slip of a vehicle, e.g., a loss of traction, can occur when a road is wet or covered with snow or ice. It can occur when a road is dry, and a vehicle is accelerating or decelerating rapidly. It can occur rounding a sharp corner. Because an odometer is typically hooked up to a driven wheel, the engine or transmission, there may be large sources of error in the distance estimates derived from the odometer. Utilizing conveniently derived slip signals from an anti-lock brake system (ABS) or from a traction control system (TCS), the slip of the vehicle can be accounted for, even absent a GPS signal to recalibrate the system.

Abstract: The present invention discloses an improved vehicular inertial guidance navigation system, a.k.a. a dead reckoning system for navigation of a vehicle. The inertial guidance navigation system which may be used alone or in combination with other position determination means, such as GPS and map databases, to determine the location of a vehicle. The dead reckoning system has several advantages over existing systems. First, it can be easily mounted to the chassis of any vehicle. Second, it does not require any interface with existing sensors on the vehicle. Third, the system contains logic for removing errors in the position and heading determinations, brought about by angulation/rotation of the chassis and inertial guidance sensors, brought about by inclination or tilt of the chassis, with respect to an inertial/quasi-inertial frame of reference, such as the earth. The inertial guidance system includes: an inertial guidance sensor, a translation unit, and a logic unit.