METHOD FOR REMOTELY CONTROLLING VEHICLE FEATURES

• US 20090167524A1
• Filed: 12/31/2007
• Published: 07/02/2009
• Est. Priority Date: 12/31/2007
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: General Motors Corporation (Motors Liquidation Co. GUC Trust)
• Inventors: Blanck, Michael J., Chesnutt, Elizabeth
• Granted Patent: US 8,731,155 B2
• Time in Patent Office: Days
• US Class Current: 340/539.190
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/42 Transmitting or receiving remote control signals via a network
• CPC Class Codes: G08C 2201/93 Remote control using other portable devices, e.g. mobile phone, PDA, laptop
• CPC Class Codes: H04L 51/18 Commands or executable codes
• CPC Class Codes: H04L 51/222 using geographical location information, e.g. messages transmitted or received in proximity of a certain spot or area
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network

Abstract

A method and system that enables users to remotely control or manage certain vehicle features, such as emergency flashers or a remote engine start, through the use of a trigger device other than a conventional vehicle key fob. For example, a trigger device like a mobile phone, a personal digital assistant (PDA), or a computer can be used to remotely control or activate select vehicle features. In one embodiment, short message service (SMS) messages are used to send feature commands either directly from the trigger device to the vehicle or via a call center or other message processing entity.

Claims

1. A method for remotely controlling features of a vehicle, comprising the steps of:

(a) sending a first command message from a trigger device to a call center, wherein the first command message includes a feature command and is created by a command application installed on the trigger device;

(b) analyzing the first command message at the call center and determining if the trigger device is properly authorized to send command messages to the vehicle;

(c) if the trigger device is properly authorized to send command messages to the vehicle, then wirelessly sending a second command message from the call center to the vehicle, wherein the second command message includes the feature command; and

(d) executing the feature command at the vehicle in response to receiving the second command message.

2. The remote control method of claim 1, further comprising the step of determining an authorized group before sending the first command message in step (a), wherein the authorized group is comprised of at least one trigger device that is designated by a user using an affiliated website.

3. The remote control method of claim 2, further comprising the step of updating records at the call center before sending the first command message in step (a), wherein the records at the call center are updated with information regarding the status of the authorized group and are used in step (b) in determining if the trigger device is properly authorized to send command messages to the vehicle.

4. The remote control method of claim 1, further comprising the step of presenting feature command options to a user before sending the first command message in step (a), wherein the feature command options are presented through an interface of the command application and are based on an inquiry into the available features of the vehicle.

5. The remote control method of claim 1, wherein the trigger device is a mobile phone and the command application is a software program designed to run on the mobile phone.

6. The remote control method of claim 1, wherein execution of the feature command in step (d) activates at least one feature that is located on the vehicle and is selected from the group consisting of:

a remote engine starter, an emergency flasher, an internal light, an external light, a horn, a power door lock, a power trunk lock, a power sliding door, a power tailgate, a power rear hatch, a power folding seat, a vehicle diagnostic resource, or a telematics unit.

7. The remote control method of claim 1, wherein the first and second command messages are each a short message service (SMS) message having a payload section that includes the feature command.

8. The remote control method of claim 1, wherein step (c) further comprises encrypting contents of the second command message before wirelessly sending the second command message from the call center to the vehicle.

9. The remote control method of claim 1, further comprising the step of analyzing the second command message at the vehicle before executing the feature command in step (d), wherein the second command message is analyzed for authenticity by performing at least one of the following security-related functions:

determining if the second command message is sent from the call center, or decrypting contents of the second command message with a secret key.

10. The remote control method of claim 1, further comprising the step of comparing trigger device location information with vehicle location information before executing the feature command in step (d), wherein the feature command is only executed if the trigger device and vehicle are within a predetermined proximity of one another.

11. A method for remotely controlling features of a vehicle, comprising the steps of:

(a) constructing a command message at a trigger device, wherein the command message is a short message service (SMS) message that includes a payload section;

(b) wirelessly sending the SMS command message from the trigger device, wherein the payload section of the SMS command message includes a feature command for activating one or more features of the vehicle;

(c) wirelessly receiving the SMS command message at the vehicle; and

(d) extracting the feature command from the payload section of the SMS command message.

12. The remote control method of claim 11, further comprising the step of determining an authorized group before wirelessly sending the SMS command message in step (b), wherein the authorized group is comprised of at least one trigger device that is designated by a user using an affiliated website.

13. The remote control method of claim 12, further comprising the step of updating records at a call center before wirelessly sending the SMS command message in step (b), wherein the records at the call center are updated with information regarding the status of the authorized group and are used to determine if the trigger device is properly authorized to send command messages to the vehicle.

14. The remote control method of claim 11, further comprising the step of presenting feature command options to a user before constructing the SMS command message in step (a), wherein the feature command options are presented through an interface of a command application and are based on an inquiry into the available features of the vehicle.

15. The remote control method of claim 11, wherein the trigger device is a mobile phone having a command application installed thereon, the command application is a software program designed to run on the mobile phone.

16. The remote control method of claim 11, further comprising the step of activating a feature of the vehicle according to the feature command extracted in step (d), wherein the feature is selected from the group consisting of:

a remote engine starter, an emergency flasher, an internal light, an external light, a horn, a power door lock, a power trunk lock, a power sliding door, a power tailgate, a power rear hatch, a power folding seat, a vehicle diagnostic resource, or a telematics unit.

17. The remote control method of claim 11, wherein step (b) further comprises wirelessly sending the SMS command message from the trigger device to a call center, and step (c) further comprises wirelessly receiving the SMS command message from the call center at the vehicle.

18. The remote control method of claim 11, wherein step (b) further comprises wirelessly sending the SMS command message directly from the trigger device to the vehicle, and step (c) further comprises wirelessly receiving the SMS command message directly from the trigger device at the vehicle.

19. The remote control method of claim 11, further comprising the step of analyzing the SMS command message at the vehicle, wherein the SMS command message is analyzed for authenticity by performing at least one of the following security-related functions:

determining if the SMS command message is sent from either a properly authorized call center or a properly authorized trigger device, or decrypting contents of the SMS command message with a secret key.

20. The remote control method of claim 11, further comprising the step of comparing trigger device location information with vehicle location information, wherein the feature command extracted in step (d) is only executed if the trigger device and vehicle are within a predetermined proximity of one another.

21. A system for remotely controlling features of a vehicle, comprising:

a wireless carrier system;

a trigger device having a command application installed thereon, wherein the command application constructs a command message in response to a feature command selection made by a user;

a call center in communication with the trigger device and having records stored thereat, the records including information regarding the trigger device and the vehicle; and

a vehicle in wireless communication with the call center and having a telematics unit and at least one vehicle feature, wherein the feature command selection made by the user causes;

i) the trigger device to send the command message to the call center, ii) the call center to authenticate the command message with the records, iii) the call center to forward the authenticated command message to the vehicle over the wireless carrier system, iv) the vehicle to authenticate the forwarded command message, and v) the vehicle to execute the feature command selected by the user.