Systems and methods for classifying driver skill level and handling type

• US 10,124,807 B2
• Filed: 01/23/2017
• Issued: 11/13/2018
• Est. Priority Date: 01/23/2017
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Petrucci, Michael G., MacDonald, Alexander J., Barber, Christopher J.
• Primary Examiner(s): Mott, Genna M
• Assistant Examiner(s): Alsomiri, Majdi
• Application Number:
  US15/412,661
• Publication Number:
  US 20180208206A1
• Time in Patent Office: 659 Days
• CPC Class Codes: B60R 16/0231 Circuits relating to the driving or the functioning of the vehicle monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P
• CPC Class Codes: B60W 2510/207 Oversteer or understeer
• CPC Class Codes: B60W 2520/105 Longitudinal acceleration
• CPC Class Codes: B60W 2520/125 Lateral acceleration
• CPC Class Codes: B60W 2540/18 Steering angle
• CPC Class Codes: B60W 30/02 Control of vehicle driving stability
• CPC Class Codes: B60W 30/182 Selecting between different operative modes, e.g. comfort and performance modes
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: B62D 15/021 Determination of steering angle
• CPC Class Codes: B62D 6/007 adjustable by the driver, e.g. sport mode

Abstract

A vehicle control system includes a skill level module that determines a skill level of a driver of the vehicle based on both (i) a lateral acceleration of the vehicle and (ii) a longitudinal acceleration of the vehicle. A handling module determines a handling type based on a rate of change of a steering wheel angle. An actuator control module, based on the skill level of the driver and the handling type, selectively actuates a dynamics actuator of the vehicle.

Claims

1. A vehicle control system comprising:

a skill level module that determines a skill level of a driver of the vehicle based on both (i) a lateral acceleration of the vehicle and (ii) a longitudinal acceleration of the vehicle;

an averaging module that determines an average of a plurality of values of a rate of change of a steering wheel angle;

a handling module that, based on the average, selects a handling type from a group comprising;

oversteer, understeer, and neutral,

wherein the handling module at least one of;

sets the handling type to understeer when the average is less than a first predetermined value;

sets the handling type to oversteer when the average is greater than a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; and

sets the handling type to neutral when the average is between the first and second predetermined values; and

an actuator control module that, based on the skill level of the driver and the handling type, selectively actuates a dynamics actuator of the vehicle.

2. The vehicle control system of claim 1 wherein the skill level module selects the skill level of the driver from a group comprising a first skill level, a second skill level indicative of a greater level of skill than the first skill level, and a third skill level indicative of a greater level of skill than the second skill level.

3. The vehicle control system of claim 2 wherein:

the vehicle control system further comprises a skill module that increases a skill value as at least one of (i) a magnitude of the lateral acceleration increases and (ii) a magnitude of the longitudinal acceleration increases;

the vehicle control system further comprises a second an averaging module that determines a second average of a plurality of the skill values; and

the skill level module sets the skill level of the driver to the first skill level when the second average is less than a first predetermined value.

4. The vehicle control system of claim 2 wherein:

the vehicle control system further comprises a skill module that increases a skill value as at least one of (i) the lateral acceleration increases and (ii) the longitudinal acceleration increases;

the vehicle control system further comprises a second averaging module that determines a second average of a plurality of the skill values; and

the skill level module sets the skill level of the driver to the third skill level when the second average is greater than a second predetermined value.

5. The vehicle control system of claim 2 wherein:

the vehicle control system further comprises a skill module that increases a skill value as at least one of (i) the lateral acceleration increases and (ii) the longitudinal acceleration increases;

the vehicle control system further comprises a second averaging module that determines a second average of a plurality of the skill values; and

the skill level module;

sets the skill level of the driver to the first skill level when the second average is less than a first predetermined value;

sets the skill level of the driver to the third skill level when the second average is greater than a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; and

sets the skill level of the driver to the second skill level when the second average is between the first and second predetermined values.

6. The vehicle control system of claim 1 wherein the dynamic actuator includes one of:

an electronic limited slip differential;

an electronic power steering motor;

an automatic braking system (ABS) actuator;

a ride control actuator; and

an aerodynamic actuator.

7. A vehicle control method comprising:

determining a skill level of a driver of the vehicle based on both (i) a lateral acceleration of the vehicle and (ii) a longitudinal acceleration of the vehicle;

determining an average of a plurality of values of a rate of change of a steering wheel angle;

based on the average, selecting a handling type from a group comprising oversteer, understeer, and neutral steering

wherein the selection comprises at least one of;

setting the handling type to understeer when the average is less than a first predetermined value;

setting the handling type to oversteer when the average is greater than a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; and

setting the handling type to neutral when the average is between the first and second predetermined values; and

,

based on the skill level of the driver and the handling type, selectively actuating a dynamics actuator of the vehicle.

8. The vehicle control method of claim 7 wherein determining the skill level includes selecting the skill level of the driver from a group comprising a first skill level, a second skill level indicative of a greater level of skill than the first skill level, and a third skill level indicative of a greater level of skill than the second skill level.

9. The vehicle control method of claim 8 further comprising:

increasing a skill value as at least one of (i) a magnitude of the lateral acceleration increases and (ii) a magnitude of the longitudinal acceleration increases; and

determining a second average of a plurality of the skill values,

wherein determining the skill level includes setting the skill level of the driver to the first skill level when the second average is less than a first predetermined value.

10. The vehicle control method of claim 8 further comprising:

increasing a skill value as at least one of (i) the lateral acceleration increases and (ii) the longitudinal acceleration increases; and

determining a second average of a plurality of the skill values,

wherein determining the skill level includes setting the skill level of the driver to the third skill level when the second average is greater than a second predetermined value.

11. The vehicle control method of claim 8 further comprising:

increasing a skill value as at least one of (i) the lateral acceleration increases and (ii) the longitudinal acceleration increases; and

determining a second average of a plurality of the skill values,

wherein determining the skill level includes;

setting the skill level of the driver to the first skill level when the second average is less than a first predetermined value;

setting the skill level of the driver to the third skill level when the second average is greater than a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; and

setting the skill level of the driver to the second skill level when the second average is between the first and second predetermined values.

12. The vehicle control method of claim 7 wherein the dynamic actuator includes one of:

an electronic limited slip differential;

an electronic power steering motor;

an automatic braking system (ABS) actuator;

a ride control actuator; and

an aerodynamic actuator.

13. A vehicle control system comprising:

a skill level module that determines a skill level of a driver of the vehicle based on both (i) a lateral acceleration of the vehicle and (ii) a longitudinal acceleration of the vehicle;

an averaging module that determines an average of a plurality of values of a rate of change of a steering wheel angle;

a handling module that, based on the average, selects a handling type from a group comprising;

oversteer, understeer, and neutral,

wherein the handling module at least one of;

sets the handling type to understeer when the average is less than a first predetermined value;

sets the handling type to oversteer when the average is greater than a second predetermined value; and

an actuator control module that, based on the skill level of the driver and the handling type, selectively actuates a dynamics actuator of the vehicle.