US 11,993,122 B1 · Updating vehicle models for improved suspension control

Abstract

An active suspension control system for a vehicle includes a mathematical model based on a modal expansion of the vehicle. Model parameters of the vehicle can be extracted from the modal expansion using sensor data generated on the vehicle, e.g., on demand and/or in real time. The model parameters and the modal expansion can be used to determine a vehicle state, predict future vehicle states, and control aspects of an active suspension system based on the predicted future vehicle states. The model parameters may also be used to update the mathematical model, e.g., to account for component wear over time, and/or to detect anomalies or defects in the active suspension system.

Claims20

Dependent claims

A vehicle comprising:

an active suspension system;
sensors;
one or more processors;
and
non-transitory computer readable media storing one or more instructions implemented by the one or more processors to perform actions comprising:
receiving a mathematical model of the vehicle, the mathematical model being based at least in part on a modal expansion of the vehicle;
receiving, from the sensors, sensor data associated with operation of the vehicle;
determining, based on the sensor data, one or more updated parameters of the mathematical model of the vehicle, the one or more updated parameters being associated with at least one of mass, damping, or stiffness of the vehicle;
and
controlling the active suspension system based at least in part on the one or more updated parameters.

7 more elements

Dependencies are inferred from the claim text.

Updating vehicle models for improved suspension control

Life of this patent

Updating vehicle models for improved suspension control

Life of this patent

Abstract

Claims20