Monitoring of communication for vehicle remote park-assist

• US 10,336,320 B2
• Filed: 11/22/2017
• Issued: 07/02/2019
• Est. Priority Date: 11/22/2017
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Aksyutina, Yuliya, Mueller-Lerwe, Armin, Lavoie, Erick Michael, Van Wiemeersch, John Robert, Benmimoun, Ahmed
• Primary Examiner(s): Paige, Tyler D
• Application Number:
  US15/821,350
• Publication Number:
  US 20190152472A1
• Time in Patent Office: 587 Days
• Field of Search: 701 2
• CPC Class Codes: B60W 2510/06 Combustion engines, Gas turbines
• CPC Class Codes: B60W 2510/10 Change speed gearings
• CPC Class Codes: B60W 2556/45 External transmission of data to or from the vehicle
• CPC Class Codes: B60W 30/06 Automatic manoeuvring for parking
• CPC Class Codes: B62D 1/00 Steering controls, i.e. means for initiating a change of direction of the vehicle
• CPC Class Codes: B62D 15/0285 Parking performed automatically
• CPC Class Codes: G05D 1/0022 characterised by the communication link data switching networks in general H04L12/00
• CPC Class Codes: G05D 1/0055 with safety arrangements
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Method and apparatus are disclosed for monitoring of communication for vehicle remote park-assist. An example vehicle includes an autonomy unit for remote parking, a communication module, and a controller. The controller is to send a counter signal to and receive a return signal from a mobile device via the communication module, determine a time period between sending of the counter signal and receipt of the return signal, and prevent the autonomy unit from causing vehicle movement responsive to determining the time period is less than a threshold.

Claims

1. A vehicle comprising:

an autonomy unit for remote parking;

a communication module; and

a controller to;

send a counter signal to and receive a return signal from a mobile device via the communication module;

determine a time period between sending of the counter signal and receipt of the return signal; and

prevent the autonomy unit from causing vehicle movement responsive to determining the time period is greater than a threshold.

2. The vehicle of claim 1, wherein, responsive to determining the time period is less than or equal to the threshold, the controller is to enable the autonomy unit to cause the vehicle movement during the remote parking.

3. The vehicle of claim 1, wherein the controller further is to emit an alert responsive to determining the time period is greater than the threshold.

4. The vehicle of claim 1, wherein the communication module is configured to wirelessly communicate via a Bluetooth®

low energy protocol, a Wi-Fi®

protocol, a Wi-Fi®

low power protocol, and a UHF protocol.

5. The vehicle of claim 1, wherein the communication module sends the counter signal to trigger sending of the return signal to the communication module.

6. The vehicle of claim 1, wherein the controller sends the counter signal via the communication module in response to determining that the remote parking is active.

7. The vehicle of claim 1, wherein the controller sends the counter signal via the communication module in response to determining that the mobile device is within a tethering range for the remote parking.

8. The vehicle of claim 1, wherein the controller sends the counter signal via the communication module in response to the communication module receiving a remote parking instruction from the mobile device.

9. The vehicle of claim 1, further including an engine and an engine sensor, wherein the controller is to send the counter signal via the communication module in response to the engine sensor detecting that the engine is active.

10. The vehicle of claim 1, further including a transmission and a transmission position sensor, wherein the controller is to send the counter signal via the communication module in response to the transmission position sensor detecting that the transmission is not in park.

11. The vehicle of claim 1, wherein the controller detects when the communication module sends the counter signal and receives the return signal.

12. The vehicle of claim 1, wherein the counter signal and the return signal include time stamps to enable the controller to determine when the counter signal was sent and the return signal was received.

13. The vehicle of claim 1, wherein the controller is to send a series of counter signals via the communication module to monitor communication with the mobile device over a period of time while the autonomy unit performs the remote parking.

14. The vehicle of claim 13, wherein the controller controls a rate at which the communication module sends the series of control signals.

15. The vehicle of claim 14, wherein the controller adjusts the rate at which the communication module sends the series of control signals based upon at least one of a vehicle speed, a vehicle acceleration, and a proximity of the mobile device to an outer boundary of a tethering range.

16. The vehicle of claim 1, wherein, after the communication module receives the return signal, the controller is to:

send a second counter signal to and receive a second return signal from the mobile device via the communication module;

determine a second time period between sending of the second counter signal and receipt of the second return signal; and

prevent the autonomy unit from causing the vehicle movement responsive to determining the second time period is greater than the threshold.

17. A method comprising:

sending, via a communication module of a vehicle, a counter signal to a mobile device;

receiving, via the communication module, a return signal from the mobile device;

determining, via a processor, a time period between sending of the counter signal and receipt of the return signal; and

preventing, via the processor, an autonomy unit from causing vehicle movement during remote parking responsive to determining the time period is greater than a threshold.

18. The method of claim 17, further including, enabling, via the processor, the autonomy unit to cause the vehicle movement during the remote parking responsive to determining the time period is less than or equal to the threshold.

19. The method of claim 17, wherein sending the counter signal via the communication module triggers sending of the return signal to the communication module.

20. The method of claim 17, wherein the counter signal is sent via the communication module in response to determining that the remote parking is active.