Vehicle equipped with electric motor and stability control method therefor
AssigneesHyundai Motor Company, Kia Corporation
InventorsHui Un Son, Jea Mun Lee, Jae Young Park, Young Eun Kim, Sang Joon Kim, Sung Hoon Yu
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Abstract
A method of controlling stability of a motorized vehicle having an electric motor as a drive source includes determining a slope of a road ahead, when sensing a sudden slope change point as a result of determination, determining a correction section based on the sudden slope change point, and correcting stability control torque in the correction section to compensate for motion of the vehicle body due to a change in the slope of the road using a pitching motion of the vehicle body caused by the torque of the electric motor.
Claims20
A method of controlling a vehicle, comprising:
- determining a slope of a road ahead;
- determining a sudden slope change point comprising a point where a sign of the slope changes or a point where the slope changes by a predetermined amount as a result of the determination of the slope of the road;
- determining a correction section along the road based on the sudden slope change point, the correction section comprising a section before the sudden slope change point on the road;
- and
- correcting a stability control torque in the correction section to compensate for motion of a vehicle body due to a change in the slope of the road using a pitching motion of the vehicle body caused by a torque of an electric motor,
- wherein determining the correction section comprises:
- determining the sudden slope change point based on slope information obtained using an advanced driver assistance system (ADAS);
- setting a reference point ahead of the sudden slope change point based on a resolution of the slope information;
- and
- setting the correction section based on the reference point.
A non-transitory computer-readable recoding medium having a program recorded thereon, the program to direct a processor to perform acts of:
- determining a slope of a road ahead;
- determining a sudden slope change point comprising a point where a sign of the slope changes or a point where the slope changes by a predetermined amount as a result of the determination of the slope of the road;
- determining a correction section along the road based on the sudden slope change point, the correction section comprising a section before the sudden slope change point on the road;
- and
- correcting a stability control torque in the correction section to compensate for motion of a vehicle body due to a change in the slope of the road using a pitching motion of the vehicle body caused by a torque of an electric motor,
- wherein determining the correction section comprises:
- determining the sudden slope change point based on slope information obtained using an advanced driver assistance system (ADAS);
- setting a reference point ahead of the sudden slope change point based on a resolution of the slope information;
- and
- setting the correction section based on the reference point.
A vehicle comprising:
- an electric motor;
- an advanced driver assistance system (ADAS) configured to detect a preceding vehicle or a lane;
- a first controller configured to control the electric motor;
- and
- a second controller configured to:
- determine a slope of a road ahead;
- determine a sudden slope change point comprising a point where a sign of the slope changes or a point where the slope changes by a predetermined amount as a result of the determination of the slope of the road;
- determine a correction section along the road based on the sudden slope change point, the correction section comprising a section before the sudden slope change point on the road;
- correct a stability control torque in the correction section to compensate for motion of a vehicle body due to a change in the slope of the road using a pitching motion of the vehicle body caused by a torque of the electric motor;
- and
- transmit, to the first controller, a torque command to which the corrected stability control torque is applied,
- wherein the second controller is configured to:
- determine the sudden slope change point based on slope information obtained using the ADAS;
- set a reference point ahead of the sudden slope change point based on a resolution of the slope information;
- and
- set the correction section based on the reference point.
Dependencies are inferred from the claim text.