Systems and methods for abrupt road change assist and active suspension control
First Claim
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1. A vehicle assist system, comprising:
- a sensor configured to detect a profile and a distance of an irregular road surface ahead of a vehicle in a direction of travel; and
a control unit configured to;
store detected information from the sensor about the profile and the distance of the irregular road surface, andadjust an operating speed of the vehicle based on;
the detected distance, andthe stored profile information of the irregular road surface.
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Abstract
Systems and methods for limiting a current operating speed of a vehicle are disclosed. A position of the vehicle relative to an abrupt road change in front of the vehicle and a current operating speed are determined. Information regarding a profile of the abrupt road change is detected. Based on the determined position and current operating speed, a brake torque output is adjusted to reduce the current operating speed. Based on the profile, suspension parameters associated with the vehicle are dynamically adjusted.
80 Citations
16 Claims
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1. A vehicle assist system, comprising:
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a sensor configured to detect a profile and a distance of an irregular road surface ahead of a vehicle in a direction of travel; and a control unit configured to; store detected information from the sensor about the profile and the distance of the irregular road surface, and adjust an operating speed of the vehicle based on; the detected distance, and the stored profile information of the irregular road surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle system, comprising:
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a sensor configured to detect a profile and distance of an irregular road surface ahead of a vehicle in a direction of travel; and a controller configured to; receive and store data from the sensor indicative of the detected profile of the irregular road surface and the distance of the vehicle relative to the irregular road surface; and based on the stored profile of the irregular road surface and the stored distance, adjust at least one of a suspension height, an expected acceleration, and an operating speed of the vehicle. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A vehicle, comprising:
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at least one wheel; at least one sensor; and a controller configured to; receive signals from the at least one sensor indicative of a sensed profile of an irregular road surface and a distance of the vehicle relative to the irregular road surface; based on the received signals, determine that the distance is below a time-based threshold for activation; and adjust a suspension height of at least one wheel based on at least one of the sensed profile of the irregular road surface, the distance of the vehicle relative to the irregular road surface, and a current operating speed of the vehicle.
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15. A method for controlling a vehicle, comprising:
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detecting, via a sensor, and storing information about, a profile of an irregular road surface and a distance of irregular road surface in front of the vehicle; based on the detected distance and a current operating speed, reducing an operating speed of the vehicle; and based on the profile, adjusting suspension parameters associated with the vehicle.
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16. A vehicle assist system, comprising:
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a sensor configured to determine a distance of a vehicle relative to an irregular road surface in a direction of travel; and a control unit configured to; detect and store information about a profile of the irregular road surface, adjust an operating speed of the vehicle based on; the determined distance, and the stored profile information of the irregular road surface, and adjust a suspension height of one or more wheels of the vehicle and an expected vertical acceleration of a body of the vehicle based on the stored profile information of the irregular road surface.
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Specification