Patent ID: 11859978
Assignee: ALMAE TECHNOLOGIES
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A system for estimating a velocity of a vehicle, the system comprising:
a memory; and
a computer processor configured to;
obtain a first set of three-dimensional readings from a first inertial sensor at a first vehicle location attached to the vehicle and a second set of three-dimensional readings from a second inertial sensor at a second location attached to the vehicle, wherein the distance between the first location of the vehicle and the second location of the vehicle is equal to or smaller than a wheelbase of said vehicle three-dimensional readings and the second set of three-dimensional readings comprise at least one of: acceleration and angular velocity of said vehicle along one of three mutually perpendicular axes;
calculate a time difference between a first time when an irregularity is sensed in the first location of the vehicle by the first inertial sensor and a second time when the irregularity is sensed in the second location of the vehicle by the second inertial sensor, wherein the time difference is based on a cross-correlation of the first set of three-dimensional readings at the first time and the second set of three-dimensional readings at the second time; and
calculate the velocity of the vehicle based on the time difference.