Active safety control for vehicles
First Claim
1. A method for controlling active safety functionality for a vehicle, the active safety functionality providing an action during a drive cycle of the vehicle based on a predetermined threshold, the method comprising the steps of:
- obtaining data pertaining to driving conditions for a road on which the vehicle is travelling and usage conditions of the vehicle for the drive cycle;
calculating a risk factor grade using the data, the risk factor grade corresponding to a level of situational risk for the drive cycle via a processor based on both the driving conditions of the road and the usage conditions of the vehicle; and
adjusting the predetermined threshold of the active safety functionality based on the risk factor grade, wherein;
the step of calculating the risk factor grade comprises the steps of;
calculating a first value of the risk factor grade at a first time during the drive cycle; and
calculating a second value of the risk factor grade at a second time during the drive cycle, the second time being subsequent to the first time; and
the step of adjusting the predetermined threshold comprises the steps of;
adjusting the predetermined threshold based on the second value of the risk factor grade if the second value of the risk factor grade is greater than the first value of the risk factor grade; and
adjusting the predetermined threshold based on an average of the first value of the risk factor grade and the second value of the risk factor grade if the second value of the risk factor grade is less than the first value of the risk factor grade.
3 Assignments
0 Petitions
Accused Products
Abstract
Methods, systems, and vehicles are provided for controlling active safety functionality for a vehicle. The active safety functionality provides an action during a drive cycle of the vehicle based on a predetermined threshold. Data pertaining to driving conditions, usage conditions of the vehicle, or both, is obtained for a drive cycle of the vehicle. A risk factor grade is calculated using the data. The risk factor grade corresponds to a level of situational risk for the drive cycle. The predetermined threshold of the active safety system is adjusted based on the risk factor grade.
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Citations
18 Claims
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1. A method for controlling active safety functionality for a vehicle, the active safety functionality providing an action during a drive cycle of the vehicle based on a predetermined threshold, the method comprising the steps of:
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obtaining data pertaining to driving conditions for a road on which the vehicle is travelling and usage conditions of the vehicle for the drive cycle; calculating a risk factor grade using the data, the risk factor grade corresponding to a level of situational risk for the drive cycle via a processor based on both the driving conditions of the road and the usage conditions of the vehicle; and adjusting the predetermined threshold of the active safety functionality based on the risk factor grade, wherein; the step of calculating the risk factor grade comprises the steps of; calculating a first value of the risk factor grade at a first time during the drive cycle; and calculating a second value of the risk factor grade at a second time during the drive cycle, the second time being subsequent to the first time; and the step of adjusting the predetermined threshold comprises the steps of; adjusting the predetermined threshold based on the second value of the risk factor grade if the second value of the risk factor grade is greater than the first value of the risk factor grade; and adjusting the predetermined threshold based on an average of the first value of the risk factor grade and the second value of the risk factor grade if the second value of the risk factor grade is less than the first value of the risk factor grade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for controlling active safety functionality for a vehicle, the active safety functionality providing an action during a current drive cycle of the vehicle based on a predetermined threshold, the system comprising:
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a memory configured to store the predetermined threshold; and a processor coupled to the memory and configured to; obtain data pertaining to; a driving behavior of a driver of the vehicle during a prior driving cycle of the vehicle, the prior driving cycle occurring prior to the current drive cycle; and the driving behavior of the driver during the current driving cycle; calculate a risk factor grade using the data, the risk factor grade corresponding to a level of situational risk for the drive cycle, the risk factor grade calculated based at least in part on a comparison between the driving behavior during the prior driving cycle and the driving behavior during the current driving cycle; and adjust the predetermined threshold of the active safety functionality based on the risk factor grade, wherein the processor is further configured to; calculate a first value of the risk factor grade at a first time during the drive cycle; calculate a second value of the risk factor grade at a second time during the drive cycle, the second time being subsequent to the first time; adjust the predetermined threshold based on the second value of the risk factor grade if the second value of the risk factor grade is greater than the first value of the risk factor grade; and adjust the predetermined threshold based on an average of the first value of the risk factor grade and the second value of the risk factor grade if the second value of the risk factor grade is less than the first value of the risk factor grade. - View Dependent Claims (12, 13, 14)
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15. A vehicle comprising:
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a drive system; an active safety system coupled to the drive system and configured to provide an action during a drive cycle of the vehicle based on a predetermined threshold; and a controller coupled to the active safety system and configured to; obtain data pertaining to driving conditions, usage conditions of the vehicle , or both, for the drive cycle; calculate a first risk factor grade using the data at a first time during the drive cycle, the first risk factor grade corresponding to a level of situational risk at the first time during the drive cycle; and calculate a second value of the risk factor grade at a second time during the drive cycle, the second time being subsequent to the first time, the second risk factor grade corresponding to the level of situational risk at the second time during the drive cycle; adjust the predetermined threshold of the active safety system based on the second value of the risk factor grade if the second value of the risk factor grade is greater than the first value of the risk factor grade; and adjust the predetermined threshold based on an average of the first value of the risk factor grade and the second value of the risk factor grade if the second value of the risk factor grade is less than the first value of the risk factor grade. - View Dependent Claims (16, 17, 18)
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Specification