Risk potential calculation device and driving assist system
First Claim
1. A risk potential calculating device for a vehicle, comprising:
- a state recognition device that detects vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings; and
a risk potential calculator that calculates a risk potential for the vehicle surroundings based on detection results of the state recognition device, wherein the risk potential calculator calculates the risk potential by respectively calculating a first risk potential expressing a risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state, and adding the first risk potential weighted by a first coefficient and the second risk potential weighted by the second coefficient.
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Accused Products
Abstract
A risk potential calculating device for a vehicle, comprises a state recognition device that detects vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings; and a risk potential calculator that calculates a risk potential for the vehicle surroundings based on detection results of the state recognition device. The risk potential calculator calculates the risk potential by respectively calculating a first risk potential expressing a risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state, and adding the first risk potential weighted by a first coefficient and the second risk potential weighted by the second coefficient.
33 Citations
18 Claims
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1. A risk potential calculating device for a vehicle, comprising:
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a state recognition device that detects vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings; and
a risk potential calculator that calculates a risk potential for the vehicle surroundings based on detection results of the state recognition device, wherein the risk potential calculator calculates the risk potential by respectively calculating a first risk potential expressing a risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state, and adding the first risk potential weighted by a first coefficient and the second risk potential weighted by the second coefficient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vehicle driving assist system, comprising:
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a state recognition device that detects vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings;
a risk potential calculator that calculates a risk potential for the vehicle surroundings based on detection results of the state recognition device;
a reaction force calculating device that calculates an operation reaction force to be generated at a vehicle operation equipment according to the risk potential calculated by the risk potential calculator; and
a reaction force generating device that generates the operation reaction force calculated by the reaction force calculating device at the vehicle operation equipment, wherein the risk potential calculator calculates the risk potential by respectively calculating a first risk potential expressing a risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state, and adding the first risk potential weighted by a first coefficient and the second risk potential weighted by the second coefficient;
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16. A vehicle, comprising:
a vehicle driving assist system that comprises (a) a state recognition device that detects vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings;
(b) a risk potential calculator that calculates a risk potential for the vehicle surroundings based on detection results of the state recognition device;
(c) a reaction force calculating device that calculates an operation reaction force to be generated at a vehicle operation equipment according to the risk potential calculated by the risk potential calculator; and
(d) a reaction force generating device that generates the operation reaction force calculated by the reaction force calculating device at the vehicle operation equipment, wherein the risk potential calculator calculates the risk potential by respectively calculating a first risk potential expressing a risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state, and adding the first risk potential weighted by a first coefficient and the second risk potential weighted by the second coefficient;
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17. A risk potential calculating device for a vehicle, comprising:
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a state recognition means for detecting vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings; and
a risk potential calculating means for calculating a risk potential for the vehicle surroundings based on detection results of the state recognition means, wherein the risk potential calculating means calculates the risk potential by respectively calculating a first risk potential expressing risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state, and adding the first risk potential weighted by a first coefficient and the second risk potential weighted by the second coefficient.
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18. A risk potential calculating method, comprising:
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detecting vehicle conditions of a subject vehicle and a traveling environment for vehicle surroundings;
calculating a first risk potential expressing a risk in a case where driving conditions of the subject vehicle are in a steady state and a second risk potential expressing a risk for a case where driving conditions of the subject vehicle are in a transient state based on the detected vehicle conditions and traveling environment;
calculating a weighting variable for setting weighting of the first risk potential and the second risk potential based on the vehicle conditions and traveling environment;
determining a first coefficient multiplied to the first risk potential and a second coefficient multiplied to the second risk potential based on the calculated weighting variable; and
calculating a risk potential for the vehicle surroundings by adding the first risk potential multiplied by the first coefficient and the second risk potential multiplied by the second coefficient.
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Specification