Method and apparatus for dynamic adjustment of vehicle motion profiles
OwnerNamal P. Kumara, Paul A. Adaminventors
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Abstract
An apparatus including a sensor for detecting a first acceleration of a target vehicle at a first time and a second acceleration of the target vehicle at a second time, a processor operative to calculate an increased distance in response to the first acceleration and the second acceleration exceeding an acceleration threshold, the processor further operative to generate a control signal indicative of the increased distance, and a vehicle controller for controlling a vehicle throttle controller and a vehicle steering controller to maintain an initial distance between the host vehicle and the target vehicle and to maintain the increased distance between the host vehicle and the target vehicle in response to the control signal.
Claims20
An apparatus comprising:
- a sensor operative to detect a first distance between a host vehicle and a target vehicle at a first time, a second distance between the host vehicle and the target vehicle at a second time, and a third distance between the host vehicle and the target vehicle at a third time;
- a user interface operative to receive a user selection of a selected offset distance having an initial hysteresis window;
- a processor operative to determine a first acceleration of the target vehicle in response to the first distance and the second distance, and a second acceleration of the target vehicle in response to the second distance and the third distance, the processor further operative to calculate a calculated offset distance in response to the first acceleration and the second acceleration exceeding a threshold acceleration value and for generating a control signal in response to the calculated offset distance being greater than the selected offset distance;
- and
- a vehicle controller operative to maintain the calculated offset distance between the host vehicle and the target vehicle in response to the control signal, wherein the calculated offset distance further includes a wider hysteresis window than the initial hysteresis window.
A method performed by a processor comprising:
- receiving a selected offset distance from a user interface in response to a user selection;
- controlling a vehicle velocity such that the selected offset distance having an initial hysteresis window is maintained between a host vehicle and a target vehicle;
- detecting a first distance between the host vehicle and the target vehicle at a first time;
- detecting a second distance between the host vehicle and the target vehicle at a second time;
- detecting a third distance between the host vehicle and the target vehicle at a third time;
- calculating a first acceleration of the target vehicle in response to the first distance and the second distance;
- calculating a second acceleration of the target vehicle in response to the second distance and the third distance;
- comparing the first acceleration and the second acceleration to a threshold acceleration value and generating an increased offset distance in response to the first acceleration and the second acceleration exceeding the threshold acceleration value;
- and
- controlling the vehicle velocity such that the increased offset distance is maintained between the host vehicle and the target vehicle, wherein the increased offset distance further includes a wider hysteresis window than the initial hysteresis window.
An advanced driver assistance system for controlling a host vehicle comprising:
- a sensor for detecting a first acceleration of a target vehicle at a first time and a second acceleration of the target vehicle at a second time;
- a processor operative to calculate an increased distance in response to the first acceleration and the second acceleration exceeding an acceleration threshold, the processor further operative to generate a control signal indicative of the increased distance;
- and
- a vehicle controller for controlling a vehicle throttle controller and a vehicle steering controller to maintain an initial distance within an initial hysteresis window between the host vehicle and the target vehicle and to maintain the increased distance between the host vehicle and the target vehicle in response to the control signal, wherein maintaining the increased distance between the host vehicle and the target vehicle includes a wider hysteresis window than the initial hysteresis window.
Dependencies are inferred from the claim text.