Vehicle capability monitoring and adaptation system and method therefor

• US 9,058,036 B1
• Filed: 12/08/2010
• Issued: 06/16/2015
• Est. Priority Date: 09/24/2010
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Vian, John L., Vavrina, Matthew A., How, Jonathan P., Bethke, Brett, Redding, Joshua, Dydek, Zachary
• Primary Examiner(s): Tran, Khoi
• Assistant Examiner(s): Bendidi, Rachid
• Application Number:
  US12/963,095
• Time in Patent Office: 1,651 Days
• Field of Search: 701/29, 701/58, 701/59, 701/60, 701/67, 701/68, 701/34.3, 701/34.4, 701/30, 700 28- 55, 375/127, 244/194, 244/195
• US Class Current: 1/1
• CPC Class Codes: G05B 13/041 in which a variable is automatically adjusted to optimise the performance
• CPC Class Codes: G05B 23/0221 Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
• CPC Class Codes: G05B 23/0248 Causal models, e.g. fault tree; digraphs; qualitative physics
• CPC Class Codes: G05B 23/0283 Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL] preventive maintenance, i.e. planning maintenance according to the available resources without monitoring the system G06Q10/06

Abstract

A system for monitoring a vehicle having systems, components, and sensors has a nominal controller and an adaptive controller. A vehicle health function module is coupled to an output of the adaptive controller and generates a vehicle health output signal indicating a prognosis of at least one of the systems or components degradation of the vehicle.

Claims

1. A system for monitoring a vehicle having systems, components, and sensors comprising:

a nominal controller;

an adaptive controller;

a vehicle health function module coupled to sensors on the vehicle and to an output of the adaptive controller, wherein the sensors provide current operating conditions of at least one of the systems or components of the vehicle and the output of the adaptive controller indicating current derivations form predefined operating parameters of at least one of the systems or components of the vehicle, the vehicle health function module generating a real time vehicle health output signal indicating current operational longevity of at least one of the systems or components of the vehicle; and

a mission planning module coupled to the vehicle health function module to determine a capability of the vehicle to complete an assigned task based on the real time vehicle health output signal generated by the vehicle health function module and configured to allocate resources on a proactive basis based on the real time vehicle health output signal indicating current operational longevity of at least one of the systems or components of the vehicle and on a reactive basis based on the current operating conditions to complete the assigned task.

2. The system of claim 1, wherein the current operational longevity of the at least one of the systems or components of the vehicle is wirelessly communicated using a communication system of the vehicle.

3. The system of claim 1, wherein the mission planning module is coupled to outputs of a plurality of vehicle health function modules to determine a capability of each vehicle to complete an assigned task.

4. The system of claim 1, wherein the adaptive controller comprises:

a reference model module; and

an adaptive function module coupled to an output of the reference model module and to the vehicle.

5. The system of claim 1, wherein the adaptive controller is a Composite Model-Reference Adaptive Control (CMRAC).

6. The system of claim 1, wherein the nominal controller is a Linear Quadratic Regulator (LQR).

7. The system of claim 1, wherein the vehicle health function module estimates a severity of failure of at least one of the systems or components of the vehicle.

8. A system for monitoring a vehicle having systems, components, and sensors comprising:

a nominal controller which generates a nominal control output signal in response to a control command signal;

an adaptive controller which receives the control command signal and a vehicle state signal and generates an adaptive control output signal indicating deviations from nominal efficiency of the at least one of the systems or components of the vehicle to the vehicle health function module; and

a vehicle health function module which receives the adaptive control output signal, the adaptive control output signal indicating derivations form predefined operating parameters of the at least one of the systems or components of the vehicle, the vehicle health function module generating a vehicle health output signal indicating a current operational longevity of the at least one of the systems or components of the vehicle; and

a mission planning module coupled to the vehicle health function module to determine a capability of the vehicle to complete an assigned task based on an output of the vehicle health function module and configured to allocate one or more additional vehicles on a proactive basis based on the current operational longevity of at least one of the systems or components of the vehicle and on a reactive basis based on the current operating conditions of the vehicle to complete the assigned task.

9. The system of claim 8, wherein the current operational longevity of the at least one of the systems or components degradation of the vehicle is wirelessly communicated using a communication system of the vehicle.

10. The system of claim 8, wherein the mission planning module is coupled to outputs of a plurality of vehicle health function modules to determine a capability of each vehicle to complete an assigned task in a multi-vehicle mission.

11. The system of claim 8, wherein the adaptive controller comprises:

a reference model module; and

an adaptive function module coupled to an output of the reference model module and to the vehicle.

12. The system of claim 8, wherein the adaptive controller is a Composite Model-Reference Adaptive Control (CMRAC).

13. The system of claim 8, wherein the nominal controller is a Linear Quadratic Regulator (LQR).

14. A method for determining when a vehicle may perform a mission task comprising:

monitoring at least one of a system or component of the vehicle by a vehicle health function module, the vehicle health function module receiving current operating readings from at least one sensor on the at least one of a system or component of the vehicle and an adaptive control output signal indicating deviations from nominal efficiency of the at least one of the systems or components of the vehicle;

assessing current operational longevity of the at least one of a system or component of the vehicle by the vehicle health function module;

assessing capability of the vehicle to perform the mission task by a mission planning module, wherein the mission planning module determines capability of the vehicle based on readings from the vehicle health function module;

allocating resources on a proactive basis based on the current operational longevity of at least one the systems or components of the vehicle and on a reactive basis based on the current operating conditions of the vehicle to complete the assigned task.

15. The method of claim 14, further comprising allocating additional resources by the mission planning module when the current operational longevity indicates that the vehicle is not capable to perform the mission task.