Charge utilization control system and method

• US 8,463,473 B2
• Filed: 01/10/2010
• Issued: 06/11/2013
• Est. Priority Date: 01/10/2010
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Booth, Lewis, Crombez, Dale Scott, Gabor, Daniel A.
• Primary Examiner(s): Algahaim, Helal A
• Application Number:
  US12/684,955
• Publication Number:
  US 20110166725A1
• Time in Patent Office: 1,248 Days
• Field of Search: 701/22, 701/408, 180/65.265, 180/65.75, 903/903, 903/907
• US Class Current: 701/22
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60K 6/52 Driving a plurality of drive axles, e.g. four-wheel drive
• CPC Class Codes: B60L 2240/62 Vehicle position
• CPC Class Codes: B60L 50/15 with additional electric power supply with capacitors charged by engine-driven generators B60L50/40; with batteries charged by engine-driven generators B60L50/61
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/11 using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance utilising navigation and traffic information in the control strategy B60W20/12
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2710/244 Charge state
• CPC Class Codes: B60W 50/0097 Predicting future conditions
• CPC Class Codes: B60W 50/082 Selecting or switching between different modes of propelling
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y10S 903/903 having energy storing means, e.g. battery, capacitor

Abstract

A charge utilization control system for an electric vehicle includes a controller, an electric motor connected to the controller, a battery connected to the electric motor and an internal combustion engine connected to the controller. The controller is adapted to minimize electric charge stored in the battery as the electric vehicle approaches a charging destination for the battery.

Claims

1. A charge utilization control system for an electric vehicle, comprising:

a controller configured to execute programmed instructions stored in controller readable memory;

an electric motor connected to said controller;

a battery connected to said electric motor;

a vehicle location system connected to said controller and wherein said controller is programmed to learn a location of said charging destination and wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination;

an internal combustion engine connected to said controller; and

wherein said controller is configured to minimize electric charge stored in said battery including substantial charge depletion as the electric vehicle approaches a charging destination for said battery, said electric charge minimization comprising apportioning a relatively greater proportion of torque provided by said electric motor to said electric vehicle compared to said internal combustion engine.

2. The system of claim 1 further comprising a user interface connected to said controller, said user interface configured to respond to interaction to control said controller.

13. The system of claim 1 wherein said electric vehicle comprises said engine drivingly engaging a first axle and a first pair of wheels and said electric motor drivingly engaging a second axle and a second pair of wheels.

3. An electric vehicle, comprising:

a chassis;

a first axle and a second axle carried by said chassis;

a first pair of wheels and a second pair of wheels carried by said first axle and said second axle, respectively;

at least one electric motor drivingly engaging at least one of said axles;

an internal combustion engine providing power indirectly or directly to at least one of said axles;

a battery connected to said electric motor;

a vehicle location system connected to said controller and wherein said controller is programmed to learn a location of said charging destination and wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination;

at least one controller connected to said internal combustion engine and said electric motor, said controller configured to execute programmed instructions stored in controller readable memory; and

wherein said at least one controller is configured to minimize electric charge stored in said battery including substantial charge depletion and at least reduce a proportion of torque provided by said at least one electric motor to said electric vehicle compared to torques provided by said internal combustion engine as said electric vehicle approaches a charging destination for said battery.

4. The electric vehicle of claim 3 further comprising a user interface connected to said controller, said user interface configured to respond to interaction to control said controller.

5. The electric vehicle of claim 4 further comprising a positioning system connected to said controller and said user interface comprises a programmable control connected to said positioning system or said controller.

6. The electric vehicle of claim 4 further comprising a vehicle location system connected to said controller and wherein said user interface comprises a manually activated charging destination learn function connected to said vehicle location system or said controller, said learn function configured to cause the vehicle location system or said controller to learn the location of said charging destination wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination.

7. The electric vehicle of claim 3 further comprising a vehicle location system connected to said controller and wherein said controller is configured to automatically learn a charging destination and wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination.

14. The system of claim 3 wherein said electric vehicle comprises said engine drivingly engaging said first axle and said first pair of wheels and said electric motor drivingly engaging said second axle and said second pair of wheels.

8. A charge utilization control method for an electric vehicle, comprising:

charging a battery of said electric vehicle;

operating said electric vehicle;

approaching a charging destination for said battery;

operating an electric motor of said electric vehicle to minimize a battery charge remaining in said battery including substantial charge depletion as said electric vehicle approaches said charging destination, said operating comprising a controller executing programmed instructions stored in controller readable memory;

a vehicle location system connected to said controller and wherein said controller is programmed to learn a location of said charging destination and wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination;

said operating further comprising increasing a proportion of torque provided to said vehicle by said electric motor and at least reducing a proportion of torque provided to said vehicle by an internal combustion engine of said electric vehicle as said electric vehicle approaches said charging destination.

9. The method of claim 8 wherein said operating an electric motor of said electric vehicle comprises connecting said controller to said electric motor, connecting a user interface to said controller and manually activating said user interface to control said controller.

10. The method of claim 8 wherein said operating an electric motor of said electric vehicle comprises connecting said controller to said electric motor, connecting a user interface comprising a positioning system having a programmable control to said controller and programming an approach to said charging destination into said positioning system using said programmable control wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination.

11. The method of claim 8 wherein said operating an electric motor of said electric vehicle comprises connecting said controller to said electric motor, connecting a vehicle location system to said controller and having said vehicle location system or controller automatically learn at least one charge destination for said electric wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination.

12. The method of claim 11 wherein said operating an electric motor of said electric vehicle further comprises a user interface having a manually activated charging destination learning function connected to said vehicle location system or said controller and having said vehicle location system or controller learn at least one charge destination for said electric vehicle using said charging destination learn function, wherein said vehicle location system automatically determines that said vehicle is approaching said charging destination.

15. The method of claim 8 wherein said electric vehicle comprises said engine drivingly engaging a first axle and a first pair of wheels and said electric motor drivingly engaging a second axle and a second pair of wheels.