VEHICLE ARCHITECTURES, DEVICES AND CONTROL ALGORITHMS FOR MANAGING WIRELESS VEHICLE CHARGING

• US 20180290551A1
• Filed: 04/11/2017
• Published: 10/11/2018
• Est. Priority Date: 04/11/2017
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Jones, Brandon R., Ashby, Ryan M., Namou, Andrew J.
• Granted Patent: US 10,245,966 B2
• Time in Patent Office: Days
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2260/42 by adaptive correction
• CPC Class Codes: B60L 2270/00 Problem solutions or means not otherwise provided for
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: B60Q 1/46 for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
• CPC Class Codes: B60Q 1/48 for parking purposes
• CPC Class Codes: B60Q 1/507 specific to autonomous vehicles
• CPC Class Codes: B60Q 5/005 automatically actuated
• CPC Class Codes: B60W 2554/20 Static objects
• CPC Class Codes: B60W 2554/4029 Pedestrians
• CPC Class Codes: B60W 60/0017 of other traffic participants
• CPC Class Codes: B60W 60/0023 in response to energy consumption
• CPC Class Codes: G05D 1/0225 involving docking at a fixed facility, e.g. base station or loading bay parking aids B62D15/027
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/60 : responsive to the presence of foreign objects, e.g. detection of living beings
• CPC Class Codes: H02J 50/90 : involving detection or optimisation of position, e.g. alignment
• 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 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles

Abstract

Disclosed are control algorithms and system architectures for managing wireless vehicle charging, including vehicles with rechargeable battery packs, wireless charging capabilities, and control logic for governing such charging. A method is disclosed for managing charging of an electrical storage unit of a motor vehicle at a wireless vehicle charging station. The method includes: receiving a sensor signal indicating detection of an obstruction within a predetermined proximity of the vehicle charging station; determining whether the detected obstruction is living or lifeless; initiating, via a vehicle controller responsive to the detected obstruction being a living object, a first remedial action strategy that commands the vehicle to generate a visual or audible cue to drive away the living object; and, initiating, via the vehicle controller responsive to the detected obstruction being a lifeless object, a second remedial action strategy that commands the motor vehicle to move and thereby avoid contact with the object.

Claims

1. A method for managing charging of an electrical storage unit of a motor vehicle at a wireless vehicle charging station, the method comprising:

receiving, via a vehicle controller from a sensor, a signal indicative of detection of an obstruction within a predetermined proximity of the wireless vehicle charging station;

determining, via the vehicle controller, whether the detected obstruction is a living object or a lifeless object;

initiating, via the vehicle controller responsive to a determination that the detected obstruction is a living object, a first remedial action strategy including commanding the motor vehicle to generate a visual or audible cue configured to drive away the living object; and

initiating, via the vehicle controller responsive to a determination that the detected obstruction is a lifeless object, a second remedial action strategy including directing the motor vehicle to reposition such that the motor vehicle avoids contact with the lifeless object.

2. The method of claim 1, wherein the motor vehicle includes a sound-generating component, and wherein the first remedial action strategy includes commanding the sound-generating component to output the audible cue configured to drive away the living object.

3. The method of claim 1, wherein the motor vehicle includes a light-generating component, and wherein the first remedial action strategy includes commanding the light-generating component to output the visual cue configured to drive away the living object.

4. The method of claim 1, wherein the motor vehicle has autonomous driving capabilities, and wherein the first remedial action strategy includes autonomously rerouting the motor vehicle to evade the living object.

5. The method of claim 1, wherein the motor vehicle has autonomous driving capabilities, and wherein the second remedial action strategy includes autonomously repositioning the motor vehicle to a new location or a new position.

6. The method of claim 1, wherein the motor vehicle includes a light-generating and sound-generating components, wherein the lifeless object is a second motor vehicle, and wherein the second remedial action strategy includes commanding the light-generating component to output a visual prompt and/or commanding the sound-generating component to output an audible prompt, both configured to prompt the second motor vehicle to move.

7. The method of claim 1, further comprising:

receiving, via the vehicle controller, a signal indicating that charging of the electrical storage unit has commenced; and

continuously monitoring the predetermined proximity of the wireless vehicle charging station for the obstruction during charging of the electrical storage unit.

8. The method of claim 1, further comprising, upon completion of the first or second remedial action strategy, initiating a retry strategy, the retry strategy including a repeated loop of:

communicating, via the vehicle controller with the sensor, to determine if the obstruction is still within the predetermined proximity of the wireless vehicle charging station;

responsive to a determination that the obstruction is still within the predetermined proximity, re-executing a corresponding one of the initiating operations; and

responsive to a determination that the obstruction is not within the predetermined proximity, concluding the retry strategy.

9. The method of claim 8, wherein the retry strategy further includes:

determining, prior to the re-executing of the corresponding initiating operation, if a predetermined time period has expired or a maximum number of cycles of the repeated loop has been completed; and

responsive to a determination that the predetermined time period has expired or the maximum number of cycles have been completed, concluding the retry strategy.

10. The method of claim 1, further comprising transmitting, via the vehicle controller to a user, a user prompt with an indication of the detected obstruction and a request for approval to initiate the first or the second remedial action strategy.

11. The method of claim 1, further comprising receiving, via the vehicle controller from a user input device of a user, one or more user parameters modifying the first remedial action strategy or the second remedial action strategy, or both.

12. The method of claim 1, further comprising:

receiving, via the vehicle controller, an indication that charging of the electrical storage unit has commenced; and

terminating, via the vehicle controller responsive to receiving the signal indicative of detection of the obstruction, the charging of the electrical storage unit.

13. The method of claim 1, wherein the motor vehicle includes a vehicle body, and wherein the vehicle controller and the sensor are resident to the vehicle body.

14. An electric motor vehicle comprising:

a vehicle body;

a traction battery back attached to the vehicle body;

a wireless charging receiver component electrically coupled to the traction battery back and configured to operably couple with a wireless vehicle charging station; and

a vehicle controller attached to the vehicle body and programmed to;

receive, from a sensor, a signal indicative of detection of an obstruction within a predetermined proximity of the wireless vehicle charging station;

determine whether the detected obstruction is a living object or a lifeless object;

responsive to a determination that the detected obstruction is a living object, initiate a first remedial action strategy including commanding the motor vehicle to generate a visual or audible cue configured to drive away the living object; and

responsive to a determination that the detected obstruction is a lifeless object, initiate a second remedial action strategy including commanding the motor vehicle to reposition such that the motor vehicle avoids contact with the lifeless object.

15. A non-transitory, computer readable medium storing instructions for execution by an onboard vehicle controller of a motor vehicle, the motor vehicle having an electrical storage unit electrically coupled to a wireless charging receiver component configured to operably couple with a wireless vehicle charging station, the instructions causing the vehicle controller to perform steps comprising:

receiving, from a sensor, a signal indicative of detection of an obstruction within a predetermined proximity of the wireless vehicle charging station;

determining whether the detected obstruction is a living object or a lifeless object;

initiating, responsive to a determination that the detected obstruction is a living object, a first remedial action strategy including commanding the motor vehicle to generate a visual or audible cue configured to drive away the living object; and

initiating, responsive to a determination that the detected obstruction is a lifeless object, a second remedial action strategy including commanding the motor vehicle to reposition such that the motor vehicle avoids contact with the lifeless object.

16. The non-transitory, computer readable medium of claim 15, wherein the motor vehicle includes a sound-generating component and a light-generating component, and wherein the first remedial action strategy includes commanding the sound-generating component to output the audible cue and/or commanding the light-generating component to output the visual cue, both of which are configured to drive away the living object.

17. The non-transitory, computer readable medium of claim 15, wherein the motor vehicle has autonomous driving capabilities, and wherein the first remedial action strategy includes autonomously rerouting the motor vehicle to evade the living object.

18. The non-transitory, computer readable medium of claim 15, wherein the motor vehicle has autonomous driving capabilities, and wherein the second remedial action strategy includes autonomously repositioning the motor vehicle to a new location or a new position.

19. The non-transitory, computer readable medium of claim 15, wherein the motor vehicle includes a light-generating component and a sound-generating component, wherein the lifeless object is a second motor vehicle, and wherein the second remedial action strategy includes commanding the light-generating component to output a visual prompt and/or commanding the sound-generating component to output an audible prompt, both of which are configured to prompt the second motor vehicle to move.

20. The non-transitory, computer readable medium of claim 15, further comprising instructions causing the vehicle controller to, upon completion of the first or second remedial action strategy, initiate a retry strategy, the retry strategy including a repeated loop of:

communicating with the sensor to determine if the obstruction is still within the predetermined proximity of the wireless vehicle charging station;

responsive to a determination that the obstruction is still within the predetermined proximity, re-executing a corresponding one of the initiating operations; and

responsive to a determination that the obstruction is not within the predetermined proximity, concluding the retry strategy.