US 2020/0139983 A1 · VEHICLE CONTROL SYSTEMS AND METHODS

Abstract

Aspects of the subject technology relate to systems and methods for monitoring component wear to prevent premature component failure. A control system for a system having one or more mechanical or electronic components may include a life manager that monitors accumulated wear of the one or more components. The life manager may provide an alert and/or limit system operations when the accumulated wear exceeds a limit. The limit may be dynamically determined based on an operating age of the component. The limit may also be defined as a matrix of limits, each defined for a range of a particular operating condition of the component. Operating conditions may include an applied torque range for a vehicle wheel or a thermal cycle temperature range for an electronic switching component.

Claims20

Dependent claims

A method comprising:

determining an operating age of a vehicle component, the operating age indicating a duration of use of the vehicle component;
determining a wear growth rate of the vehicle component;
determining a projected wear of the vehicle component using the operating age and the wear growth rate of the vehicle component;
determining an overuse difference or an underuse difference for the operating age of the vehicle component, both the overuse difference and the underuse difference determined as a difference between an accumulated wear of the vehicle component and the projected wear of the vehicle component;
and
controlling operation of the vehicle component based on the overuse difference or the underuse difference that is determined.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/724,339Filed 22 Dec 2019

Priority

23 Nov 2016

Published

7 May 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

B60W 50/0205
Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures: diagnosing or detecting failures;…
B60W 50/0225
Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures: failure correction strategy
B60W 50/038
Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures: limiting the input power, torque or speed
B60W 50/14
Interaction between the driver and the control system: means for informing the driver, warning the driver or prompting a driver intervention

Vehicle control systems and methods

Life of this patent

Vehicle control systems and methods

Life of this patent

Abstract

Claims20