Driving assistance apparatus
First Claim
1. A driving assistance apparatus to a vehicle, the driving assistance apparatus including a driving assistance section to perform control over assisting a driver in driving the vehicle, the driving assistance apparatus comprising:
- a subject vehicle position determination section that successively acquires a position determined by receiving a navigation signal transmitted from a navigation satellite included in a satellite navigation system and successively determines a current position of the vehicle, the vehicle being referred to as a subject vehicle;
a subject vehicle estimation section that estimates a subject-vehicle estimated trajectory as a subsequent traveling trajectory of the subject vehicle from a current position of the subject vehicle determined by the subject vehicle position determination section and a traveling orientation of the subject vehicle;
a neighboring vehicle estimation section that estimates a neighboring-vehicle estimated trajectory as a subsequent traveling trajectory of a neighboring vehicle around the subject vehicle by acquiring trajectory estimation information to estimate a neighboring-vehicle estimated trajectory as a subsequent traveling trajectory of the neighboring vehicle via an inter-vehicle communication unit included in the subject vehicle, the trajectory estimation information including a traveling orientation of the neighboring vehicle and a current position of the neighboring vehicle determined based on the navigation signal;
an area designation section that designates a determination area so as to include a crossing point that is included in the subject-vehicle estimated trajectory and the neighboring-vehicle estimated trajectory; and
a determination section that determines whether the determination area designated by the area designation section includes an intersection node in road map information that represents an intersection of roads as the intersection node,whereinthe driving assistance section uses a first driving assistance level when the determination area does not include the intersection node, the first driving assistance level being smaller in driving assistance than a second driving assistance level used when the determination area includes the intersection node.
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Accused Products
Abstract
A driving assistance apparatus in a subject vehicle includes a driving assistance section. A subject-vehicle estimated trajectory is estimated as a subsequent traveling trajectory from a current position and a traveling orientation of the subject vehicle. A neighboring-vehicle estimated trajectory is estimated as a subsequent traveling trajectory of a neighboring vehicle by acquiring trajectory estimation information. A determination area is designated to include a crossing point included in the subject-vehicle estimated trajectory and the neighboring-vehicle estimated trajectory. It is determined whether the determination area includes an intersection node in road map information. A first driving assistance level is used when the determination area does not include the intersection node; the first driving assistance level is smaller in driving assistance than a second driving assistance level used when the determination area includes the intersection node.
9 Citations
11 Claims
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1. A driving assistance apparatus to a vehicle, the driving assistance apparatus including a driving assistance section to perform control over assisting a driver in driving the vehicle, the driving assistance apparatus comprising:
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a subject vehicle position determination section that successively acquires a position determined by receiving a navigation signal transmitted from a navigation satellite included in a satellite navigation system and successively determines a current position of the vehicle, the vehicle being referred to as a subject vehicle; a subject vehicle estimation section that estimates a subject-vehicle estimated trajectory as a subsequent traveling trajectory of the subject vehicle from a current position of the subject vehicle determined by the subject vehicle position determination section and a traveling orientation of the subject vehicle; a neighboring vehicle estimation section that estimates a neighboring-vehicle estimated trajectory as a subsequent traveling trajectory of a neighboring vehicle around the subject vehicle by acquiring trajectory estimation information to estimate a neighboring-vehicle estimated trajectory as a subsequent traveling trajectory of the neighboring vehicle via an inter-vehicle communication unit included in the subject vehicle, the trajectory estimation information including a traveling orientation of the neighboring vehicle and a current position of the neighboring vehicle determined based on the navigation signal; an area designation section that designates a determination area so as to include a crossing point that is included in the subject-vehicle estimated trajectory and the neighboring-vehicle estimated trajectory; and a determination section that determines whether the determination area designated by the area designation section includes an intersection node in road map information that represents an intersection of roads as the intersection node, wherein the driving assistance section uses a first driving assistance level when the determination area does not include the intersection node, the first driving assistance level being smaller in driving assistance than a second driving assistance level used when the determination area includes the intersection node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification