Trusted motion unit
AssigneeAnalog Devices, Inc.
InventorsIgor P. Prikhodko, Joseph Bergeron, Alan Christopher O'Connor
Life of this patent
Estimating the term…
Abstract
Navigation systems and methods for autonomous vehicles are provided. The navigation system may include multiple navigation subsystems, including one having an inertial measurement unit (IMU). That unit may serve as the primary unit for navigation purposes, with other navigation subsystems being treated as secondary. The other navigation subsystems may include global positioning system (GPS) sensors, and perception sensors. In some embodiments, the navigation system may include a first filter for the IMU sensor and separate filters for the other navigation subsystems.
Claims20
A trusted motion unit for an autonomous vehicle, comprising:
- an inertial measurement unit (IMU);
- an integration circuit configured to receive an output signal of the inertial measurement unit;
- and
- a first filter configured to receive an output signal of the integration circuit and an output signal from a second filter.
A navigation system for an autonomous vehicle, comprising:
- a plurality of navigation subsystems including:
- a first navigation subsystem comprising an inertial measurement unit (IMU) and a first filter;
- and
- a second navigation subsystem comprising a second filter,
- wherein the first filter is coupled to the second filter, configured to receive an input signal from the second filter, and configured to provide a feedback signal to the IMU.
A navigation system for an autonomous vehicle, comprising:
- a first navigation subsystem comprising:
- an inertial measurement unit (IMU);
- and
- a first filter coupled to the IMU in a feedback loop;
- and
- a second navigation subsystem comprising:
- a sensor;
- and
- a second filter coupled to receive an output signal of the sensor and further coupled to an input terminal of the first filter.
Dependencies are inferred from the claim text.