System and method for acceleration event prediction

Patent metadata

Field	Value
Publication number	US-9909516-B2
Application number	US-201715473432-A
Country	US
Kind code	B2
Filing date	Mar 29, 2017
Priority date	Feb 3, 2016
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

Methods, systems, and apparatus for acceleration event prediction. A system includes one or more external databases connected through a network to a vehicle. The vehicle includes a navigation unit, one or more sensors and an electronic control unit coupled to at least the navigation unit and the one or more sensors. The electronic control unit is configured to obtain navigational map information and vehicle information, determine a predicted route set including a destination location based on the the navigational map information and the vehicle information, determine one or more predicted acceleration events for the predicted route set, detect a respective acceleration event of the one or more predicted acceleration events based on the predicted route set and a first location of the vehicle and send or transmit a signal to a turbocharger that is coupled to an engine to prepare for the respective acceleration event.

First claim

What is claimed is:

1. An acceleration event prediction system for a vehicle, comprising:
an electronic control unit that is coupled to the at least one of the navigation unit or the sensor, the electronic control unit configured to:
determine a predicted route set that includes one or more paths that the vehicle is predicted to travel,
determine one or more predicted acceleration events for the predicted route set,
detect a respective acceleration event of the one or more predicted acceleration events, and
prepare a turbocharger of the vehicle for the respective acceleration event.

2. The acceleration event prediction system of claim 1 , further comprising:
at least one of a navigation unit or a sensor for obtaining vehicle information,
wherein the electronic control unit is configured to obtain, from the at least one of the navigation unit or the sensor, the vehicle information, and to determine the predicted route set based on the vehicle information.

3. The acceleration event prediction system of claim 2 , wherein the electronic control unit is further configured to:
receive, from the sensor, sensor information that indicates no hazards are within a threshold distance of the vehicle; and
wherein preparing the turbocharger is further based on the sensor information.

4. The acceleration event prediction system of claim 2 , wherein the electronic control unit is configured to obtain, from the navigation unit, navigational map information, wherein to determine the predicted route set is further based on the navigational map information.

5. The acceleration prediction system of claim 1 , wherein the electronic control unit is configured to:
store, in memory, a route history that includes an identity of a driver, the predicted route set, time and date information, and driving patterns of drivers,
wherein to determine the predicted route set is based on the route history.

6. The acceleration prediction system of claim 1 , wherein to prepare a turbocharger of the vehicle for the respective acceleration event the electronic control unit is configured to spool the turbocharger.

7. The acceleration prediction system of claim 1 , wherein to prepare a turbocharger of the vehicle for the respective acceleration event the electronic control unit is configured to send a first signal to spool the turbocharger and send a second signal that indicates a level of acceleration.

8. A method for acceleration event prediction of a vehicle, the method comprising:
obtaining, from at least one of a navigation unit or a sensor, a first location of the vehicle;
determining, by an electronic control unit, a predicted route set based on the first location;
determining, by the electronic control unit, one or more predicted acceleration events for the predicted route set;
detecting, by the electronic control unit, a respective acceleration event of the one or more predicted acceleration events; and
preparing, by the electronic control unit, a turbocharger of the vehicle for the respective acceleration event.

9. The method of claim 8 , further comprising:
obtaining, from the at least one of the navigation unit or the sensor, a second location of the vehicle;
determining, by the electronic control unit, a mis-activation of the turbocharger based on a distance between the second location of the vehicle, the respective acceleration event and a threshold distance; and
unspool, by the electronic control unit, the turbocharger in response to the mis-activation.

10. The method of claim 8 , wherein determining the predicted route set is further based on driving behavior patterns of a driver of the vehicle.

11. The method of claim 8 , wherein preparing a turbocharger of the vehicle for the respective acceleration event includes spooling the turbocharger for acceleration.

12. The method of claim 8 , further comprising:
obtaining, from the at least one of the navigation unit or the sensor, navigational map information,
wherein determining, by the electronic control unit, the one or more predicted acceleration events for the predicted route set is based on the navigational map information.

13. The method of claim 8 , wherein determining the one or more predicted acceleration events for the predicted route set comprises:
determining, by the electronic control unit, that a specific driver is operating the vehicle;
retrieving, from an internal database, driving patterns associated with the specific driver;
associating, by the electronic control unit, the driving patterns with the navigational map information and the first location; and
determining, by the electronic control unit, the one or more predicted acceleration events using the driving patterns, navigational map information and the first location.

14. The method of claim 8 , wherein determining the predicted route set is further based information obtained from a personal device.

15. The method of claim 8 , further comprising adjusting or updating the predicted route set based on traffic condition information.

16. The method of claim 8 , further comprising:
calculating a confidence value for the predicted route set and the one or more predicted acceleration events based on a route history;
determining that the confidence value is not greater than a confidence value threshold; and
adjusting at least one of the predicted route set or the one or more predicted acceleration events.

17. An acceleration event prediction system for an autonomous vehicle, comprising:
at least one of a navigation unit or a sensor for obtaining vehicle information; and
an electronic control unit that is coupled to the at least one of the navigation unit or the sensor, the electronic control unit configured to:
obtain, from the at least one of the navigation unit or the sensor, vehicle information,
determine a predicted route set based on the vehicle information,
determine one or more predicted acceleration events for the predicted route set,
detect a respective acceleration event of the one or more predicted acceleration events, and
prepare a turbocharger of the vehicle for the respective acceleration event.

18. The acceleration event prediction system of claim 17 , wherein to prepare the turbocharger of the vehicle for the respective acceleration event the electronic control unit is configured to spool the turbocharger for the respective acceleration event.

19. The acceleration event prediction system of claim 17 , wherein to detect the respective acceleration event of the one or more predicted acceleration events the electronic control unit is configured to:
compare the vehicle information to the predicted route set and the one or more predicted acceleration events; and
determine that the respective acceleration event is within a threshold distance of the vehicle.

20. The acceleration event prediction system of claim 17 , further comprising:
receiving user input to prepare the turbocharger;
detect the respective acceleration event of the one or more predicted acceleration events based on the user input; and
prepare the turbocharger for the respective acceleration event in response to the detected respective acceleration event.

Assignees

• Toyota Eng & Mfg North America

Inventors

• Dufford Mohammad E

Classifications

• B60W2540/215

  Selection or confirmation of options · CPC title

• B60W50/085

  Changing the parameters of the control units, e.g. changing limit values, working points by control input · CPC title

• G01C21/34

  Route searching; Route guidance · CPC title

• B60W2710/0638

  Turbocharger state · CPC title

• B60W20/12

  using control strategies taking into account route information {(estimation or calculation of non-directly measurable driving parameters B60W40/00)} · CPC title