SYSTEM AND METHOD TO PREDICT CALIBRATION VALUES BASED ON EXISTING CALIBRATIONS

• US 20170234251A1
• Filed: 02/16/2016
• Published: 08/17/2017
• Est. Priority Date: 02/16/2016
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Commenda, Roland, Respondek, Kevin, Zink, Jason, Speer, Lukas, Srinivasan, Soundararajan, Janai, Joel, VanDam, Courtland A.
• Granted Patent: US 9,803,576 B2
• Time in Patent Office: Days
• CPC Class Codes: F02D 2041/1412 using a predictive controller
• CPC Class Codes: F02D 2041/1433 using a model or simulation of the system
• CPC Class Codes: F02D 41/04 Introducing corrections for particular operating conditions F02D41/14 takes precedence
• CPC Class Codes: F02D 41/1401 characterised by the control or regulation method F02D41/1473, F02D41/1477 take precedence
• CPC Class Codes: F02D 41/2432 Methods of calibration
• CPC Class Codes: F02D 41/2451 characterised by what is learned or calibrated
• CPC Class Codes: F02D 41/2467 for injectors
• CPC Class Codes: F02D 41/30 Controlling fuel injection F02D41/182, F02D41/24 take precedence
• CPC Class Codes: G01M 15/00 Testing of engines
• CPC Class Codes: G05B 17/02 electric
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005

Abstract

A system to predict calibration values for a vehicle. The system is configured to receive a plurality of training data sets for a component of the vehicle. Each of the plurality of training data sets includes one or more training inputs and one or more corresponding training outputs. The system is further configured to automatically develop a prediction model based on the plurality of training data sets. The system is further configured to receive an input data set and determine, using the prediction model, a predicted calibration value based on the input data set. The system is further configured to transmit the predicted calibration value to an electronic control unit of the vehicle.

Claims

1. A system for predicting a calibration value for a vehicle, the system comprising:

an electronic processor configured to;

receive a plurality of training data sets for a vehicle component;

automatically develop a prediction model based on the plurality of training data sets;

receive an input data set;

determine, using the prediction model, a predicted calibration value based on the input data set; and

transmit the predicted calibration value to an electronic control unit included in the vehicle;

wherein each of the plurality of training data sets includes one or more inputs and one or more corresponding outputs.

2. The system of claim 1, wherein transmitting the predicted calibration value to the electronic control unit includes transmitting a lookup table to the electronic control unit, the lookup table including the input data set and the predicted calibration value.

3. The system of claim 1, wherein the electronic processor is configured to transmit the predicted calibration value to the electronic control unit over at least one connection external to the vehicle.

4. The system of claim 1, wherein automatically developing the prediction model includes selecting a learning engine from a plurality of learning engines.

5. The system of claim 4, wherein the electronic processor is configured to select the learning engine from the plurality of learning engines based on the plurality of training data sets.

6. The system of claim 5, wherein the electronic processor is configured to select the learning engine from the plurality of learning engines based on the plurality of training data sets by generating a histogram based on the plurality of training data sets.

7. The system of claim 4, wherein the electronic processor is further configured to determine at least one value for a configuration parameter associated with the learning engine based on the plurality of training data sets.

8. The system of claim 7, wherein the at least one value for the configuration parameter includes an iteration value.

9. The system of claim 1, wherein the electronic processor is further configured to

select a testing data set from the plurality of training data sets, the testing data set including one or more inputs and one or more corresponding outputs;

determine, using the prediction model, a predicted test calibration value based on the one or more inputs included in the testing data set;

compare the predicted test calibration value to the one or more outputs included in the testing data set to determine an accuracy for the prediction model; and

refine the prediction model based on the testing data set when the accuracy does not satisfy a predetermined threshold.

10. The system of claim 1, wherein the input data set includes a fuel density, a fuel rail pressure, and a number of fuel injectors and the predicted calibration value includes a fuel injection quantity.

11. A method of predicting a calibration value for a vehicle, the method comprising:

receiving, with an electronic processor, a plurality of training data sets for a component of the vehicle, wherein the each of the plurality of training data sets includes one or more training inputs and one or more corresponding training outputs;

automatically developing, with the electronic processor, a prediction model based on the plurality of training data sets;

receiving, with the electronic processor, an input data set;

determining, with the electronic processor using the prediction model, a predicted calibration value based on the input data set; and

transmitting, with the electronic processor, the predicted calibration value to an electronic control unit included in the vehicle.

12. The method of claim 11, wherein transmitting the predicted calibration value to the electronic control unit includes transmitting a lookup table to the electronic control unit, the lookup table including the input data set and the predicted calibration value.

13. The method of claim 11, further comprising:

transmitting, with the electronic processor, the predicted calibration value to the electronic control unit over at least one connection external to the vehicle.

14. The method of claim 11, wherein automatically developing the prediction model includes selecting a learning engine from a plurality of learning engines.

15. The method of claim 14, wherein selecting a learning engine from a plurality of learning engines includes selecting the learning engine from a plurality of learning engines based on the plurality of training data sets.

16. The method of claim 15, wherein selecting the learning engine from a plurality of learning engines based on the plurality of training data sets includes generating a histogram based on the plurality of training data sets.

17. The method of claim 14, further comprising:

determining, with the electronic processor, at least one value of a configuration parameter associated with the learning engine based on the plurality of training data sets.

18. The method of claim 17, wherein determining the at least one value of the configuration parameter includes determining, with the electronic processor, an iteration value.

19. The method of claim 11, further comprising:

selecting, with the electronic processor, a testing data set from the plurality of training data sets, the testing data set including one or more inputs and one or more corresponding outputs;

determining, with the electronic processor, using the prediction model, a predicted test calibration value based on the one or more inputs included in the testing data set;

comparing, with the electronic processor, the predicted test calibration value to the one or more outputs included in the testing data set to determine an accuracy for the prediction model; and

refining, with the electronic processor, the prediction model based on the testing data set when the accuracy does not satisfy a predetermined threshold.

20. The method of claim 11, wherein the input data set includes a fuel density, a fuel rail pressure, and a number of fuel injectors and the predicted calibration value includes a fuel injection quantity.