System for controlling cornering of vehicle and method thereof

Patent metadata

Field	Value
Publication number	US-10507835-B2
Application number	US-201715717119-A
Country	US
Kind code	B2
Filing date	Sep 27, 2017
Priority date	Dec 15, 2016
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

The present disclosure provides a system for controlling cornering of a vehicle and a method thereof. The method of controlling cornering of a vehicle may include: determining whether a cornering control condition is satisfied based on a lateral acceleration; detecting a displacement of an accelerator pedal when the cornering control condition is satisfied; calculating a sport index based on the displacement of the accelerator pedal and a predetermined value; and setting operating modes of a power train and a suspension system based on at least one of the sport index or the lateral acceleration.

First claim

What is claimed is:

1. A system for controlling cornering of a vehicle, the system comprising:
a power train comprising an engine and a transmission;
a suspension system connected to a driving wheel, wherein the driving wheel is configured to receive power from the power train;
a data detector configured to detect a lateral acceleration and a displacement of an accelerator pedal; and
a vehicle controller configured to:
determine whether a cornering control condition is satisfied based on the lateral acceleration;
when the cornering control condition is satisfied, calculate a sport index based on the displacement of the accelerator pedal and a predetermined value;
set operating modes of the power train and the suspension system based on at least one of the sport index or the lateral acceleration;
calculate a modified displacement by adding the displacement of the accelerator pedal and the predetermined value; and
calculate the sport index based on the modified displacement.

2. The system of claim 1 , wherein the vehicle controller is configured to set a predetermined displacement based on the lateral acceleration.

3. The system of claim 1 , wherein, when the sport index is greater than a reference index, the vehicle controller is configured to:
set the operating mode of the power train as a sport mode; and
set the operating mode of the suspension system as a mild mode.

4. The system of claim 1 , wherein, when the lateral acceleration is greater than a reference value and the sport index is greater than the reference index, the vehicle controller is configured to:
set the operating mode of the power train as a sport mode; and
set the operating mode of the suspension system as the sport mode.

5. The system of claim 1 , wherein, when a number of times that the lateral acceleration is greater than the predetermined value within a predetermined duration is greater than or equal to a predetermined number of times, the vehicle controller is configured to determine that the cornering control condition is satisfied.

6. The system of claim 1 , wherein the data detector further comprises:
a lateral acceleration detector configured to detect the lateral acceleration; and
an accelerator position sensor configured to detect the displacement of the accelerator pedal.

7. A method of controlling cornering of a vehicle, the method comprising:
determining whether a cornering control condition is satisfied based on a lateral acceleration;
when the cornering control condition is satisfied, detecting a displacement of an accelerator pedal;
calculating a sport index based on the displacement of the accelerator pedal and a predetermined value; and
setting operating modes of a power train and a suspension system based on at least one of the sport index or the lateral acceleration,
wherein setting the operating modes comprises:
determining whether the sport index is greater than a reference index; and
when the sport index is greater than the reference index, setting the operation mode of the power train as a sport mode and the operating mode of the suspension system as a mild mode.

8. The method of claim 7 , wherein determining whether the cornering control condition is satisfied based on the lateral acceleration further comprises:
determining whether a number of times that the lateral acceleration is greater than a predetermined value within a predetermined duration is greater than or equal to a predetermined number of times; and
when the number of times that the lateral acceleration is greater than the predetermined value within the predetermined duration is greater than or equal to the predetermined number of times, determining that the cornering control condition is satisfied.

9. The method of claim 7 , wherein determining whether the cornering control condition is satisfied based on the lateral acceleration further comprises:
determining whether a state that the lateral acceleration is lower than or equal to the predetermined value is maintained for a predetermined duration; and
when the state that the lateral acceleration is lower than or equal to the predetermined value is maintained for the predetermined duration, setting the operating modes of the power train and the suspension system as the mild mode, respectively.

10. The method of claim 7 , wherein detecting the displacement of the accelerator pedal further comprises:
determining whether a state that the lateral acceleration is lower than or equal to the predetermined value is maintained for a predetermined duration; and
when the state that the lateral acceleration is lower than or equal to the predetermined value is not maintained for the predetermined duration, detecting the displacement of the accelerator pedal.

11. A method of controlling cornering of a vehicle, the method comprising:
determining whether a cornering control condition is satisfied based on a lateral acceleration;
when the cornering control condition is satisfied, detecting a displacement of an accelerator pedal;
calculating a sport index based on the displacement of the accelerator pedal and a predetermined value; and
setting operating modes of a power train and a suspension system based on at least one of the sport index or the lateral acceleration,
wherein setting the operating modes comprises:
determining whether the sport index is greater than a reference index;
when the sport index is greater than the reference index, determining whether the lateral acceleration is greater than a reference value; and
when the lateral acceleration is greater than the reference value, setting the operating mode of the power train as a sport mode and the operating mode of the suspension system as the sport mode.

12. A method of controlling cornering of a vehicle, the method comprising:
determining whether a cornering control condition is satisfied based on a lateral acceleration;
when the cornering control condition is satisfied, detecting a displacement of an accelerator pedal;
calculating a sport index based on the displacement of the accelerator pedal and a predetermined value; and
setting operating modes of a power train and a suspension system based on at least one of the sport index or the lateral acceleration,
wherein calculating the sport index further comprises:
setting a predetermined displacement based on the lateral acceleration;
calculating a modified displacement based on the displacement of the accelerator pedal and a predetermined value; and
calculating the sport index based on the modified displacement.

13. The method of claim 12 , wherein the modified displacement is calculated by adding the displacement of the accelerator pedal and the predetermined value.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Park Sangjun
• Chang Joseph D
• Jeon Byeong Wook
• Cho Tae Hee

Classifications

• B60W30/18145 Primary

  Cornering · CPC title

• B60W2520/125

  Lateral acceleration · CPC title

• B60W2540/10

  Accelerator pedal position · CPC title

• B60G2400/104

  lateral or transversal with regard to vehicle · CPC title

• B60W10/06

  including control of combustion engines · CPC title