Automatic lateral acceleration limiting and non threat target rejection
DC CAFCFirst Claim
1. A method of controlling a vehicle having an adaptive cruise control system capable of obtaining a vehicle lateral acceleration, said method comprising the steps of:
- determining when the vehicle is in a turn based on a detected change in the vehicle lateral acceleration;
determining a vehicle path during the turn;
detecting an object;
determining whether the object is in the vehicle path during the turn;
reducing the vehicle speed if the object is determined to be in the vehicle path during the turn; and
ignoring the object for braking purposes if the object is determined not to be in the vehicle path during the turn.
4 Assignments
Litigations
5 Petitions
Reexaminations
Accused Products
Abstract
The present invention provides a system and method for enabling a vehicle having adaptive cruise control to reduce its speed in a turn according to the vehicle'"'"'s position within the turn as well as ignoring objects detected during the turn that are not in the vehicle'"'"'s path. The method of the present invention includes the steps of operating the vehicle in an adaptive cruise control mode such that the vehicle is traveling at a set speed; determining whether the vehicle is in a turn in the vehicle'"'"'s path by detecting change in the vehicle'"'"'s lateral acceleration; and when the vehicle is determined to be in the turn, reducing the vehicle'"'"'s speed according to the vehicle'"'"'s position in the turn, monitoring for objects and maintaining the vehicle'"'"'s speed if an object is positioned out of the path of the vehicle.
10 Citations
14 Claims
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1. A method of controlling a vehicle having an adaptive cruise control system capable of obtaining a vehicle lateral acceleration, said method comprising the steps of:
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determining when the vehicle is in a turn based on a detected change in the vehicle lateral acceleration; determining a vehicle path during the turn; detecting an object; determining whether the object is in the vehicle path during the turn; reducing the vehicle speed if the object is determined to be in the vehicle path during the turn; and ignoring the object for braking purposes if the object is determined not to be in the vehicle path during the turn. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for use in controlling a vehicle at a vehicle speed, said system including:
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an adaptive cruise control system; a controller in communication with said adaptive cruise control system and capable of determining when the vehicle is in a turn, said controller operative to reduce the vehicle speed according to a vehicle position in the turn; at least one lateral acceleration sensor for generating a signal corresponding to a vehicle lateral acceleration, said lateral acceleration sensor in electrical communication with said controller and operative to detect a change in the vehicle lateral acceleration; and at least one object detection sensor for detecting an object in a vehicle path of the vehicle during the turn, said object detection sensor in electrical communication with said controller, wherein said controller includes control logic operative to determine whether the object is in the vehicle path during the turn and ignoring the object for braking purposes when the object is not determined to be in the vehicle path. - View Dependent Claims (11, 12, 13, 14)
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Specification