Method and system to estimate driving risk based on a hierarchical index of driving
First Claim
1. A system for providing driving risk assessment in a host vehicle operated by a vehicle operator, the driving risk assessment identify the degree of risk of the current operating condition, the system comprising:
- a hierarchical index of passive driving conditions, the hierarchical index having a plurality of passive conditions, each of the plurality of passive conditions assigned a first risk factor, and the plurality of passive conditions arranged in order by value of first risk factor, wherein passive conditions are conditions not influenced by another driver, wherein each passive driving condition is assigned a first risk factor;
an active driving conditions identification system operable to detect moving objects within a predetermined distance of the host vehicle, wherein said system further providing characteristics of said objects such as speed, relative speed, distance, trajectory, and size, wherein said active driving conditions identification system assigning a second risk factor to each of each of said active driving conditions identified; and
a processor for generating a driving risk assessment, said processor identifying each of said passive driving condition applicable to current driving conditions so as to determine a totality of first risk factors, the processor further operable to refine said identified passive driving conditions with the identified active driving conditions to provide a driving risk assessment for current host vehicle operation.
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Accused Products
Abstract
A system and method for providing driving risk assessment for a host vehicle equipped with on-board sensors or vehicle-to-vehicle or infrastructure-to-vehicle systems. The system includes a hierarchical index of passive driving conditions, a means of collecting active driving conditions and a processor whereby the sum of passive driving conditions may be further refined by the active driving conditions. The method incorporates a hierarchical index of risks associated with passive driving conditions, and refining said risks with active driving conditions of the vehicle to generating a driving risk assessment for current vehicle operation.
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Citations
10 Claims
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1. A system for providing driving risk assessment in a host vehicle operated by a vehicle operator, the driving risk assessment identify the degree of risk of the current operating condition, the system comprising:
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a hierarchical index of passive driving conditions, the hierarchical index having a plurality of passive conditions, each of the plurality of passive conditions assigned a first risk factor, and the plurality of passive conditions arranged in order by value of first risk factor, wherein passive conditions are conditions not influenced by another driver, wherein each passive driving condition is assigned a first risk factor; an active driving conditions identification system operable to detect moving objects within a predetermined distance of the host vehicle, wherein said system further providing characteristics of said objects such as speed, relative speed, distance, trajectory, and size, wherein said active driving conditions identification system assigning a second risk factor to each of each of said active driving conditions identified; and a processor for generating a driving risk assessment, said processor identifying each of said passive driving condition applicable to current driving conditions so as to determine a totality of first risk factors, the processor further operable to refine said identified passive driving conditions with the identified active driving conditions to provide a driving risk assessment for current host vehicle operation. - View Dependent Claims (2)
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3. A method for providing driving risk assessment to an operator of a host vehicle equipped with on-board sensors or vehicle-to-vehicle or infrastructure-to-vehicle systems, whereby said assessment may also be incorporated into an autonomously driven vehicle to provide for the safe operation thereof, said method comprising the steps of:
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establishing a hierarchical index of passive driving conditions; assigning a first risk factor to each passive driving condition, wherein passive conditions are conditions not influenced by another driver; identifying each passive driving condition related to current vehicle operations; identifying active driving conditions of the vehicle, wherein the active driving conditions are moving objects detected within a predetermined area of the host vehicle, and assigning a second risk factor to each active environmental conditions; generating a driving risk assessment for current vehicle operation based upon each of the first risk factors of the identified passive driving conditions of the hierarchical index and the active driving conditions. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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Specification