APPARATUS AND METHOD FOR DETERMINING SHORT-TERM DRIVING TENDENCY

• US 20140365086A1
• Filed: 12/13/2013
• Published: 12/11/2014
• Est. Priority Date: 06/07/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: JEON, Byeong Wook, JEONG, Dong Hoon
• Granted Patent: US 9,070,235 B2
• Time in Patent Office: Days
• US Class Current: 701/51
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 2540/30 Driving style
• CPC Class Codes: B60W 2552/05 Type of road, e.g. motorways, local streets, paved or unpaved roads
• CPC Class Codes: B60W 2552/35 Road bumpiness, e.g. potholes
• CPC Class Codes: B60W 2554/801 Lateral distance
• 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: G07C 5/02 Registering or indicating driving, working, idle, or waiting time only apparatus forming part of taximeters G07B13/00

Abstract

An apparatus and a method determines a short-term driving tendency. The apparatus may include a driving information collecting unit configured to collect driving information for determining the short-term driving tendency, a short-term driving tendency calculating module configured to receive input variables for determining the short-term driving tendency and calculate a short-term driving tendency index using a fuzzy control theory, and a calculation prohibition control module configured to check an accelerator position sensor (APS) signal of the vehicle and prohibit calculation of the short-term driving tendency index when an APS opening degree is equal to or less than a predetermined reference value.

Claims

1. An apparatus for determining a short-term driving tendency of a driver driving a vehicle, comprising:

a driving information collecting unit configured to collect driving information for determining the short-term driving tendency;

a short-term driving tendency calculating module configured to receive input variables for determining the short-term driving tendency and calculate a short-term driving tendency index using a fuzzy control theory; and

a calculation prohibition control module configured to check an accelerator position sensor (APS) signal of the vehicle and prohibit calculation of the short-term driving tendency index when an APS opening degree is equal to or less than a predetermined reference value.

2. The apparatus of claim 1, wherein the calculation prohibition control module:

sets an APS reference map that increases proportionally to a vehicle speed, and

transmits a calculation prohibition request signal to the short-term driving tendency calculating module when the APS opening degree for the vehicle speed is equal to or less than the predetermined reference value according to the APS reference map.

3. The apparatus of claim 2, wherein the calculation prohibition control module sets the predetermined reference value to increase proportionally to the vehicle speed.

4. The apparatus of claim 1, wherein the driving information collecting unit collects driving information including at least one of a vehicle speed, vehicle acceleration, an inter-vehicle distance, the APS opening degree, a position of a brake pedal, a shift-speed, a steering state of the vehicle, position information based on a GPS/GIS, road information, a degree of congestion of a driving section, and weather information.

5. The apparatus of claim 1, wherein the short-term driving tendency calculating module:

applies the fuzzy control theory to a vehicle speed and the APS opening degree,

sets at least one membership function for each of the vehicle speed and the APS opening degree, and

calculates the short-term driving tendency index, which is a fuzzy result value, from the membership function of the inputted vehicle speed and the membership function of the APS opening degree.

6. The apparatus of claim 1, wherein the short-term driving tendency calculating module, based on a membership function of the APS opening degree and a membership function of a vehicle speed,

determines that the driver has a mild driving tendency when the vehicle speed is equal to or less than a first predetermined vehicle speed and the APS opening degree is equal to or less than a first predetermined opening degree, and

determines that the driver has a sporty driving tendency when the vehicle speed is greater than a second predetermined vehicle speed and the APS opening degree is greater than a second predetermined opening degree.

7. The apparatus of claim 1, wherein the calculation prohibition control module prohibits calculation of the short-term driving tendency index when a road on which the vehicle runs is in a specific road state.

8. A method of determining a short-term driving tendency of a driver driving a vehicle, comprising:

receiving input variables for determining the short-term driving tendency and detecting an accelerator position sensor (APS) signal from the input variables;

determining whether an APS opening degree satisfies a short-term driving tendency index calculation prohibition condition in which the APS opening degree is equal to or less than a predetermined reference value; and

prohibiting calculation of a short-term driving tendency index of the driver when the APS opening degree satisfies the short-term driving tendency index calculation prohibition condition.

9. The method of claim 8, wherein the determining of whether the APS opening degree satisfies the short-term driving tendency index calculation prohibition condition includes determining whether the APS opening degree for the vehicle speed is equal to or less than the predetermined reference value according to an APS reference map that increases proportionally to the vehicle speed.

10. The method of claim 8, further comprising:

initiating, prior to the detecting of the accelerator position sensor (APS) signal, calculation of the short-term driving tendency index when an accumulated running time or running distance reaches a predetermined condition for initiating the calculation of the short-term driving tendency index after the vehicle is started.

11. The method of claim 8, further comprising:

calculating the short-term driving tendency index of the driver when the APS opening degree does not satisfy the short-term driving tendency calculation prohibition condition,

wherein the calculating of the short-term driving tendency index calculates the short-term driving tendency index, which corresponds to a mild or sporty driving tendency, by calculating a fuzzy result value from a membership function of the vehicle speed and a membership function of the APS opening degree.