US 2019/0316914 A1 · SPEED-BUMP BASED LOCALIZATION ENHANCEMENT

Abstract

The present disclosure is related to enhanced vehicle localization using speed bump detection. In some examples, a vehicle of the present disclosure can estimate its location using GNSS and/or dead reckoning techniques. However, especially in scenarios where GNSS reception is poor, the uncertainty in the vehicle's location can be too large to accurately control the vehicle in a fully- or partially-autonomous driving mode. To reduce uncertainty in the vehicle's location, the vehicle can locate one or more features included in map information received by or stored on the vehicle. In some embodiments, a speed bump is included in the map information. The speed bump can be detected by one or more sensors, such as a motion sensor or one or more suspension level sensors, of the vehicle. The vehicle can determine its location using the detected position of the speed bump and the map information.

Claims18

Dependent claims

A system for use in a vehicle, the system comprising:

one or more sensors;
one or more processors operatively coupled to the one or more sensors;
and
a memory including instructions, which when executed by the one or more processors, cause the one or more processors to perform a method comprising the steps of:
loading map information, the map information comprising a location of a speed bump within a map;
receiving motion data from the one or more sensors;
calculating a location of the speed bump relative to the vehicle based on the motion data;
and
calculating a location of the vehicle within the map based on the location of the speed bump within the map and the location of the speed bump relative to the vehicle.

6 more elements

Dependencies are inferred from the claim text.

Speed-bump based localization enhancement

Life of this patent

Speed-bump based localization enhancement

Life of this patent

Abstract

Claims18