Vehicle systems and methods for identifying a driver

• US 9,193,359 B2
• Filed: 08/12/2013
• Issued: 11/24/2015
• Est. Priority Date: 08/12/2013
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Hui, Tze On, Timmermann, Brian T., Cohen, Daniel T.
• Primary Examiner(s): Mawari, Redhwan K
• Application Number:
  US13/964,857
• Publication Number:
  US 20150045984A1
• Time in Patent Office: 834 Days
• Field of Search: 701/31.4, 701/36, 382/124, 340/438
• US Class Current: 1/1
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/0248 with memory of positions
• CPC Class Codes: B60N 2/0268 using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
• CPC Class Codes: B60R 16/02 electric constitutive elements
• CPC Class Codes: B60R 16/037 for occupant comfort , e.g. for automatic adjustment of appliances according to personal settings, e.g. seats, mirrors, steering wheel
• CPC Class Codes: B60W 2540/043 Identity of occupants
• CPC Class Codes: B60W 2540/215 Selection or confirmation of options
• CPC Class Codes: B60W 50/085 Changing the parameters of the control units, e.g. changing limit values, working points by control input

Abstract

A vehicle system for a vehicle with an occupant is provided. The system includes a seat assembly; a sensor group associated with the seat assembly and configured to collect data about physical characteristics of the occupant of the seat assembly; and a control module coupled to the sensor group and configured to identify the occupant based on the collected data about the physical characteristics of the occupant.

Claims

1. A vehicle system for a vehicle with an occupant, comprising:

a driver seat assembly;

a sensor group comprising an array of pressure sensors incorporated into the driver seat assembly and configured to collect data about physical characteristics of the occupant of the driver seat assembly, wherein the array of pressure sensors is formed by a first number of pressure sensors; and

a control module coupled to the sensor group and storing a plurality of driver profiles, each associated with a stored driver identifier and driver preferences, wherein the control module is further configured to

generate a pressure map of the physical characteristics of the occupant based on the data,

determine a prospective driver identifier of the occupant based on the pressure map, wherein the control module is configured to determine the prospective driver identifier by statistically transforming the pressure map into a second number of principle component vectors defined by respective deviations of the pressure map relative to a control population mean, wherein the second number is at least an order of magnitude less than the first number, wherein the prospective driver identifier is virtually unique to the occupant as an individual and independent of occupant seat position on the driver seat assembly,

compare the prospective driver identifier to the stored driver identifiers of the plurality of driver profiles, and

select one of the driver profiles upon matching the prospective driver identifier to the stored driver identifier associated with the one driver profile.

2. The vehicle system of claim 1, wherein the driver seat assembly includes a lower seat member, and wherein the array of pressure sensors is arranged in the lower seat member.

3. The vehicle system of claim 1, wherein the control module is configured to implement the driver preferences associated with the selected driver profile.

4. The vehicle system of claim 3, wherein the driver preferences include at least one of keyless ignition, seat assembly settings, and infotainment settings.

10. The vehicle system of claim 1, wherein, when the prospective driver identifier fails to match any of the stored driver identifiers, the control module is configured to prevent the occupant from operating the vehicle.

12. The vehicle system of claim 1, wherein the stored driver identifiers are each a high dimensional security code using a specific discriminant function associated with the respective individual.

5. An identification system for an occupant of vehicle, comprising:

a driver seat assembly;

a sensor group comprising an array of pressure sensors incorporated into the driver seat assembly and configured to collect data about physical characteristics of the occupant of the driver seat assembly, wherein the array of pressure sensors is formed by a first number of pressure sensors; and

a control module coupled to the sensor group and storing a plurality of driver profiles, each associated with a stored driver identifier and driver preferences, wherein the control module is configured to

generate a pressure map of the physical characteristics of the occupant based on the data,

determine a prospective driver identifier of the occupant based on the pressure map, wherein the prospective driver identifier is virtually unique to the occupant as an individual and independent of occupant seat position on the seat assembly, wherein the control module is configured to determine the prospective driver identifier by statistically transforming the pressure map into a second number of principle component vectors defined by respective deviations of the pressure map relative to a control population mean, wherein the second number is at least an order of magnitude less than the first number,

compare the prospective driver identifier to the stored driver identifiers of the plurality of driver profiles,

select one of the driver profiles upon matching the prospective driver identifier to the stored driver identifier associated with the one driver profile, and

implement the driver preferences associated with the matched stored driver identifier.

6. The identification system of claim 5, wherein the driver preferences include at least one of keyless ignition, seat assembly settings, and infotainment settings.

11. The identification system of claim 5, wherein, when the prospective driver identifier fails to match any of the stored driver identifiers, the control module is configured to prevent the occupant from operating the vehicle.

7. A method for identifying a driver of a vehicle, comprising:

collecting information about physical characteristics of the driver with an array of pressure sensors incorporated into a driver seat assembly, wherein the array of pressure sensors is formed by a first number of pressure sensors;

generating a pressure map of the physical characteristics of the driver based on the collected information;

determining a prospective driver identifier of the driver from the pressure map, wherein the prospective driver identifier is virtually unique to the driver as an individual and independent of driver seat position on the driver seat assembly, wherein the control module is configured to determine the prospective driver identifier by statistically transforming the pressure map into a second number of principle component vectors defined by respective deviations of the pressure map relative to a control population mean, wherein the second number is at least an order of magnitude less than the first number;

comparing the prospective driver identifier to stored driver identifiers of a plurality of driver profiles; and

selecting one of the driver profiles upon matching the prospective driver identifier to the stored driver identifier associated with the one driver profile.

8. The method of claim 7, wherein the selected driver profile includes driver preferences and wherein the method further comprises implementing the driver preferences.

9. The method of claim 8, wherein the calculating the prospective driver identifier includes calculating the driver identifier with linear discriminate analysis.