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US 11,440,368 B2Granted
Damper control system and method according to rough road determination
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorMin Su Lee
Life of this patent
Estimating the term…
Abstract
Disclosed herein are a damper control system and method according to rough road determination in which the number of sensors is reduced and a state of a road surface is subdivided and determined by a 6D sensor since an existing wheel G sensor is not used at the time of determining the state of the road surface.
Claims11
A damper control system according to rough road determination for a vehicle, the damper control system comprising:
- a sensing unit configured for detecting vehicle posture information depending on a vertical acceleration, a roll rate, and a pitch rate of a vehicle body in the vehicle;
- a first deriving unit coupled to the sensing unit and configured for receiving the vertical acceleration detected by the sensing unit and deriving impact force generated in the vehicle body;
- a second deriving unit coupled to the first deriving unit and configured for receiving the vertical acceleration, the roll rate, and the pitch rate detected by the sensing unit and of deriving impact energy generated in the vehicle body;
- an estimating unit coupled to the second deriving unit and configured for pre-storing road surface data depending on impact force and impact energy and of estimating a state of a road surface depending on the impact force and the impact energy each input from the first deriving unit and the second deriving unit;
- and
- a controller coupled to the estimating unit and configured for controlling a damper depending on the estimated state of the road surface.
3 more elements
A damper control method according to rough road determination for a vehicle, the damper control method comprising:
- a detecting step of detecting, by a sensing unit, vehicle posture information depending on a vertical acceleration, a roll rate, and a pitch rate of a vehicle body in the vehicle;
- a first deriving step of receiving the vertical acceleration detected in the detecting step and deriving impact force generated in the vehicle body;
- a second deriving step of receiving the vertical acceleration, the roll rate, and the pitch rate detected in the detecting step and deriving impact energy generated in the vehicle body;
- an estimating step of pre-storing road surface data depending on impact force and impact energy and of estimating a state of a road surface depending on the received impact force and impact energy;
- and
- a controlling step of controlling, by a controller, a damper depending on the estimated state of the road surface.
3 more elements
Dependencies are inferred from the claim text.