Abstract: A system and method for sensing precipitation conditions near a vehicle. The precipitation radar system is mounted on the vehicle and includes a transmitter, a receiver, and an electronic control unit. The method transmits radar signals from the transmitter; receives reflected radar signals at the receiver; determines response information from the reflected radar signals for a region of interest; and uses the response information to determine precipitation conditions for the region of interest. The region of interest is defined, at least in part, by a range and the response information includes phase data, amplitude data, or both phase and amplitude data based on the reflected radar signals. The method and system may then use the precipitation conditions to control other responsive vehicle actions, such as activating a windshield heater, a windshield defroster, a windshield wiper or a combination thereof.

Abstract: A system and method for sensing precipitation conditions near a vehicle. The precipitation radar system is mounted on the vehicle and includes a transmitter, a receiver, and an electronic control unit. The method transmits radar signals from the transmitter; receives reflected radar signals at the receiver; determines response information from the reflected radar signals for a region of interest; and uses the response information to determine precipitation conditions for the region of interest. The region of interest is defined, at least in part, by a range and the response information includes phase data, amplitude data, or both phase and amplitude data based on the reflected radar signals. The method and system may then use the precipitation conditions to control other responsive vehicle actions, such as activating a windshield heater, a windshield defroster, a windshield wiper or a combination thereof.

Abstract: Systems and methods are provided for detecting collisions between objects and an autonomous vehicle. The system includes a computer vision system configured to use acquired environmental data to determine a velocity vector of an object relative to the autonomous vehicle and a distance between the object and the autonomous vehicle. The autonomous driving system also includes a vehicle motion sensing module configured to use acquired vehicle motion data to determine an acceleration vector of the autonomous vehicle. The autonomous driving system also includes a collision detection module configured to register a collision between the object and the autonomous vehicle when the determined acceleration vector is detected having a direction that is substantially the same as a direction of the determined velocity vector of the object and when the determined distance between the object and the autonomous vehicle is less than a predetermined amount.

Abstract: Systems and methods are provided for detecting collisions between objects and an autonomous vehicle. The system includes a computer vision system configured to use acquired environmental data to determine a velocity vector of an object relative to the autonomous vehicle and a distance between the object and the autonomous vehicle. The autonomous driving system also includes a vehicle motion sensing module configured to use acquired vehicle motion data to determine an acceleration vector of the autonomous vehicle. The autonomous driving system also includes a collision detection module configured to register a collision between the object and the autonomous vehicle when the determined acceleration vector is detected having a direction that is substantially the same as a direction of the determined velocity vector of the object and when the determined distance between the object and the autonomous vehicle is less than a predetermined amount.