Vehicle driving assist system
First Claim
1. A vehicle driving assist system for assisting a driver in driving a vehicle by recognizing an external environment of the vehicle, comprising:
- an imaging device imaging the external environment of the vehicle;
a 3-D obstacle detector detecting a 3-D obstacle inhibiting the driving direction of the vehicle and the distance to the 3-D obstacle based on an image of the external environment captured by the imaging means;
a visual perception difficulty determination device determining, based on automatic analysis of the captured image of the external environment including the 3-D obstacle and other 3-D objects, whether the external environment is in a condition which makes it difficult for the driver to visually perceive the 3-D obstacle by the presence of the other 3-D objects;
a collision avoidance device controlling the vehicle so as to avoid the collision with the 3-D obstacle; and
a controller, upon detection of the 3-D obstacle by the 3-D obstacle detector, controlling the activation of the collision avoidance device based on detecting a 3-D obstacle inhibiting the driving direction of the vehicle and changing the controlling of the activation of the collision avoidance means based on the determination result of the visual perception difficulty determination device.
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Accused Products
Abstract
In a vehicle driving assist system, an external environment recognition unit detects a 3-D obstacle inhibiting the driving direction of the vehicle based on an image captured by a stereo camera and determines whether the image ahead of the vehicle is in a condition that makes visual perception of the 3-D obstacle difficult. A controller calculates a required alarm working distance between the vehicle and the 3D obstacle, at which an alarm unit is worked when the vehicle approaches the 3D obstacle, and a required brake operating distance, at which a brake is operated by a brake applying unit, based on a vehicle traveling speed. If it is determined that an external environment is in a condition that makes visual perception difficult, the required working and operating distances are extended by predetermined values to set the working and operating timings earlier.
18 Citations
20 Claims
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1. A vehicle driving assist system for assisting a driver in driving a vehicle by recognizing an external environment of the vehicle, comprising:
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an imaging device imaging the external environment of the vehicle; a 3-D obstacle detector detecting a 3-D obstacle inhibiting the driving direction of the vehicle and the distance to the 3-D obstacle based on an image of the external environment captured by the imaging means; a visual perception difficulty determination device determining, based on automatic analysis of the captured image of the external environment including the 3-D obstacle and other 3-D objects, whether the external environment is in a condition which makes it difficult for the driver to visually perceive the 3-D obstacle by the presence of the other 3-D objects; a collision avoidance device controlling the vehicle so as to avoid the collision with the 3-D obstacle; and a controller, upon detection of the 3-D obstacle by the 3-D obstacle detector, controlling the activation of the collision avoidance device based on detecting a 3-D obstacle inhibiting the driving direction of the vehicle and changing the controlling of the activation of the collision avoidance means based on the determination result of the visual perception difficulty determination device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A vehicle driving assist system for estimating perception ability of a driver with respect to a 3-D obstacle inhibiting the driving direction of a vehicle driven by the driver, the system comprising:
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an imaging device imaging the external environment ahead of the vehicle; and visual perception difficulty determination device extracting a luminance edge from an image of the external environment captured by the imaging device and automatically determining, based on the extracted luminance edge, whether the external environment is in a condition in which the perception ability of the driver with respect to the 3-D obstacle is decreased b the presence of other 3-D objects. - View Dependent Claims (19, 20)
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Specification