Vehicle suspension control system and method
AssigneeAisin Aw Co., Ltd.
InventorTakayuki Miyajima
Life of this patent
Estimating the term…
Abstract
A vehicle suspension control system includes a level change recognition section that recognizes a change in level in a road, e.g. roadside curb, a travel path prediction section that predicts the travel path of the host vehicle, a ride-up judgment section which predicts that a wheel or wheels will ride up over the change in level, based on the predicted travel path, and a vehicle suspension element control section that controls the operation of the vehicle suspension or of an element thereof when ride up over the change in level is predicted. The system reliably reduces the jolting sensation which would otherwise occur when a wheel rides up over the change in level.
Claims20
A vehicle suspension control system for a host vehicle, comprising:
- current position detection means for detecting the current position of the host vehicle;
- judgment means for judging whether or not the host vehicle is in a lane furthest to the left or right side of a road;
- level change recognition means for recognizing a change in level in the road;
- travel path prediction means for predicting a travel path of the host vehicle;
- ride-up judgment means for, if the host vehicle is judged to be in a lane furthest to the left or right side of a road, predicting whether or not a wheel of the host vehicle will ride up over the change in level, based on the detected current position and the predicted travel path;
- and
- vehicle suspension control means for controlling operation of at least one vehicle suspension element to reduce jolting caused by a wheel riding over the change in level.
A method for vehicle suspension control in a host vehicle, comprising:
- detecting the current position of the host vehicle;
- judging whether or not the host vehicle is in a lane furthest to the left or right side of a road;
- recognizing a change in level in the road;
- computing a predicted travel path of the host vehicle;
- if the host vehicle is judged to be in a lane furthest to the left or right side of a road, judging whether or not a wheel of the host vehicle will ride up over the recognized change in level, based on the detected current position and the predicted travel path;
- and
- controlling the operation of at least one vehicle suspension element when a wheel is predicted to ride up over the change in level.
A vehicle suspension control system for a host vehicle, comprising:
- current position detection means for detecting the current position of the host vehicle;
- level change recognition means for recognizing a change in level in a road;
- travel path prediction means for predicting a travel path for each wheel of the host vehicle;
- ride-up judgment means for predicting for each wheel whether or not a wheel of the host vehicle will ride up over the change in level, based on the detected current position and the predicted travel path for each wheel;
- and
- vehicle suspension control means for controlling, based on the prediction by the ride-up means, operation of a vehicle suspension element for each wheel to reduce jolting caused by a wheel riding over the change in level.
A vehicle suspension control method for a host vehicle, comprising:
- detecting the current position of the host vehicle;
- recognizing a change in level in a road;
- predicting a travel path for each wheel of the host vehicle;
- ride-up predicting for each wheel whether or not a wheel of the host vehicle will ride up over the change in level, based on the detected current position and the predicted travel path for each wheel;
- and
- controlling, based on the ride-up predictions, operation of a vehicle suspension element for each wheel to reduce jolting caused by a wheel riding over the change in level.
Dependencies are inferred from the claim text.