Vehicle control system and methods

• US 9,043,106 B2
• Filed: 06/29/2012
• Issued: 05/26/2015
• Est. Priority Date: 10/04/2010
• Status: Expired due to Fees

• Current Assignee: W.Morrison Consulting Group, Inc.
• Original Assignee: W.Morrison Consulting Group, Inc.
• Inventors: Ussery, Robert, Yates, William M. III, Ingram, Benjamin T.
• Primary Examiner(s): Algahaim, Helal A
• Assistant Examiner(s): Nguyen, Nga X
• Application Number:
  US13/538,107
• Publication Number:
  US 20130261914A1
• Time in Patent Office: 1,061 Days
• Field of Search: 701/70, 701400-478, 701/533, 701/123
• US Class Current: 701/70
• CPC Class Codes: B60W 20/12 using control strategies taking into account route information estimation or calculation of non-directly measurable driving parameters B60W40/00
• CPC Class Codes: B60W 2050/0075 Automatic parameter input, automatic initialising or calibrating means
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2555/20 Ambient conditions, e.g. wind or rain
• CPC Class Codes: B60W 2556/10 Historical data
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2710/083 Torque
• CPC Class Codes: B60W 30/143 Speed control B60W30/16 takes precedence
• CPC Class Codes: B60W 30/146 Speed limiting
• CPC Class Codes: B60W 30/188 Controlling power parameters of the driveline, e.g. determining the required power
• CPC Class Codes: B64C 39/024 of the remote controlled vehicle type, i.e. RPV
• CPC Class Codes: B64D 27/24 using steam or spring force jet aircraft B64D27/16
• CPC Class Codes: B64D 33/00 Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
• CPC Class Codes: B64U 10/25 Fixed-wing aircraft VTOL aircraft B64U10/20
• CPC Class Codes: B64U 2101/30 for imaging, photography or videography
• CPC Class Codes: B64U 30/10 Wings
• CPC Class Codes: B64U 50/19 using electrically powered motors
• CPC Class Codes: B64U 50/34 In-flight charging photovoltaics B64U50/31
• CPC Class Codes: B64U 50/37 Charging when not in flight
• CPC Class Codes: B64U 70/60 : Take-off or landing of UAVs from a runway using their own power
• CPC Class Codes: G01C 21/3469 : Fuel consumption; Energy use; Emission aspects
• CPC Class Codes: Y02T 50/60 : Efficient propulsion technologies, e.g. for aircraft

Abstract

A control system that makes adjustments, such as limiting the maximum speed or maximum torque in a vehicle, is provided. These adjustments can be based on knowledge about the vehicle and trip, and on the estimated energy remaining. The control system is applicable to a wide range of vehicles, including ground, air, water, and sea vehicles, as well as vehicles powered by battery, electricity, compressed natural gas, or even liquid fuel propulsion systems. The control system may be used to adjust vehicle operation in route to assure the vehicle reaches a destination and to inform or counteract a human vehicle operator. Control system can also be used in racing applications to calculate the fastest-possible race speed and drive torque for a given race length; or alternatively, in endurance racing or delivery applications to optimize the vehicle speed and/or drive torque for a given race length or route.

Claims

1. A method for ensuring a vehicle reaches its intended destination, comprising the steps of:

a) receiving information to determine a starting position for the vehicle;

b) receiving information relating to an intended destination for the vehicle;

c) computing at least one route between the starting position and the intended destination considering at least one of;

(i) topographical features along said route;

(ii) actual, predicted, or historical traffic along said route;

(iii) actual, predicted, or historical weather along said route;

(iv) distance;

(v) driving speed;

d) iteratively estimating energy available to the vehicle during a trip, wherein the step of iteratively estimating the energy available to the vehicle includes;

(i) receiving an input from a rate sensor and an input from a value sensor;

(ii) integrating the rate sensor input to determine an integrated energy estimate;

(iii) comparing the integrated energy estimate to the value sensor input to determine a difference;

(iv) calculating the energy available by adjusting the value sensor input at a rate corresponding to the difference resulting from the comparison; and

(v) repeating steps (i) to (iv) during the course of the trip;

e) determining whether the energy available to the vehicle is sufficient to propel the vehicle from the starting position to the intended destination based on the at least one computed route; and

f) generating a signal based on the results obtained in step (e).

2. The method of claim 1, wherein in an electric application, the rate sensor input includes battery current.

3. The method of claim 2, wherein in an electric application, the value sensor input includes battery voltage.

4. The method of claim 1, wherein in a liquid fuel application, the rate sensor input includes fuel injector open time or fuel injector pressure differential.

5. The method of claim 4, wherein in a liquid fuel application, the value sensor input includes tank level.

6. A system for ensuring a vehicle reaches its intended destination comprising:

at least one user device having at least one user application; and

a vehicle controller having a destination assurance engine, the destination assurance engine including a stored energy estimator configured to iteratively estimate energy available to the vehicle during a trip by;

(i) receiving an input from a rate sensor and an input from a value sensor;

(ii) integrating the rate sensor input to determine an integrated energy estimate;

(iii) comparing the integrated energy estimate to the value sensor input to determine a difference;

(iv) calculating the energy available by adjusting the value sensor input at a rate corresponding to the difference resulting from the comparison; and

(v) repeating steps (i) to (iv) during the course of the trip.

7. The system of claim 6, wherein in an electric application, the rate sensor input includes battery current.

8. The system of claim7, wherein in an electric application, the value sensor input includes battery voltage.

9. The system of claim 6, wherein in a liquid fuel application, the rate sensor input includes fuel injector open time or fuel injector pressure differential.

10. The system of claim 9, wherein in a liquid fuel application, the value sensor input includes tank level.