Electrified vehicle with power dissipation feature

• US 9,878,703 B2
• Filed: 03/08/2016
• Issued: 01/30/2018
• Est. Priority Date: 03/08/2016
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Kava, Chris Michael, Hancock, Kent, Porras, Angel Fernando, Rockwell, Mark Anthony, Badger, Justin Reuel, Dunn, Brett Allen
• Primary Examiner(s): Paige, Tyler D
• Application Number:
  US15/064,039
• Publication Number:
  US 20170259806A1
• Time in Patent Office: 693 Days
• Field of Search: 701 22
• CPC Class Codes: B60K 11/02 with liquid cooling
• CPC Class Codes: B60K 2001/005 the electric storage means
• CPC Class Codes: B60K 2006/4808 Electric machine connected or connectable to gearbox output shaft
• CPC Class Codes: B60K 2006/4825 Electric machine connected or connectable to gearbox input shaft
• CPC Class Codes: B60K 2006/4833 Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/445 Differential gearing distribution type
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 2240/34 Cabin temperature
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/662 Temperature
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: B60L 58/27 by heating
• CPC Class Codes: B60L 7/10 Dynamic electric regenerative braking B60L7/22 takes precedence
• CPC Class Codes: B60L 7/16 for vehicles comprising converters between the power source and the motor
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 20/13 in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
• CPC Class Codes: B60W 20/14 in conjunction with braking regeneration
• CPC Class Codes: B60W 2510/246 : Temperature
• CPC Class Codes: B60W 2710/24 : Energy storage means
• CPC Class Codes: B60W 2710/246 : Temperature
• CPC Class Codes: B60W 2710/305 : target power to auxiliaries
• CPC Class Codes: B60W 30/18127 : Regenerative braking
• CPC Class Codes: B60Y 2200/92 : Hybrid vehicles
• CPC Class Codes: B60Y 2300/18125 : Regenerative braking
• CPC Class Codes: B60Y 2300/91 : Battery charging
• CPC Class Codes: B60Y 2300/92 : Battery protection from overload or overcharge
• CPC Class Codes: B60Y 2306/05 : Cooling
• CPC Class Codes: B60Y 2400/112 : Batteries
• CPC Class Codes: B60Y 2400/81 : Braking systems
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• 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 10/92 : Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y10S 903/91 : Orbital, e.g. planetary gears

Abstract

An electrified vehicle according to an exemplary aspect of the present disclosure includes, among other things, an energy recovery mechanism, and a controller configured to selectively activate at least a battery cooling mode to dissipate excess power from the energy recovery mechanism.

Claims

1. An electrified vehicle, comprising:

an energy recovery mechanism; and

a controller configured to simultaneously activate both a battery cooling mode and a battery heating mode to dissipate excess power from the energy recovery mechanism.

2. The electrified vehicle as recited in claim 1, further comprising a vehicle battery.

3. The electrified vehicle as recited in claim 2, wherein the controller simultaneously activates both the battery cooling mode and the battery heating mode only if the vehicle battery is below a threshold temperature.

4. The electrified vehicle as recited in claim 1, wherein:

the vehicle includes a battery cooling loop having a coolant pump configured to circulate cooling fluid to cool a vehicle battery, and

the controller is configured to activate the battery cooling mode by directing excess power to at least one of the coolant pump and an air conditioning compressor.

5. The electrified vehicle as recited in claim 4, wherein:

the vehicle includes a battery heating loop having a heater adjacent a vehicle battery, and

the controller is configured to activate the battery heating mode by directing excess power to the heater.

6. The electrified vehicle as recited in claim 5, wherein the heater is an induction heater.

7. The electrified vehicle as recited in claim 1, further comprising a vehicle battery, wherein the controller selectively directs power from the energy recovery mechanism to the vehicle battery until the vehicle battery is fully charged, and wherein the excess power from the energy recovery mechanism is power in excess of what is required to fully charge the vehicle battery.

8. The electrified vehicle as recited in claim 1, wherein the energy recovery mechanism is a regenerative braking system that selectively resists rotation of at least one wheel of the electrified vehicle.

9. The electrified vehicle as recited in claim 1, wherein the electrified vehicle is a hybrid electric vehicle.

10. A method of dissipating power within an electrified vehicle, comprising:

generating excess power from an energy recovery mechanism of the electrified vehicle; and

using a controller, simultaneously activating both a battery cooling mode and a battery heating mode to dissipate the excess power from the energy recovery mechanism.

11. The method as recited in claim 10, wherein the battery cooling mode and battery heating mode are simultaneously activated if the battery heating mode alone cannot dissipate the excess power.

12. The method as recited in claim 11, wherein the battery cooling mode and the battery heating mode are simultaneously activated only if a vehicle battery is below a threshold temperature.

13. The method as recited in claim 10, wherein activating the battery cooling mode includes directing excess power to at least one of a coolant pump and an air conditioning compressor.

14. The method as recited in claim 13, wherein activating the battery heating mode includes directing excess power to a heater adjacent a vehicle battery.