On-vehicle navigation apparatus, turnoff road guiding method, driving lane specifying device, and driving lane specifying method
First Claim
1. An on-vehicle navigation apparatus comprising:
- a current location calculator calculating a current location of an own vehicle;
a map information database storing map information including road map data;
a driving lane specifying section detecting a lane change in response to an operation signal from a winker and specifying a driving lane on which the own vehicle is traveling; and
a guidance timing controller detecting a turnoff road ahead of the own vehicle in a traveling direction based on the current location of the own vehicle and the road map data, and conducting a turnoff road guidance on a driver at a forward position in front of the detected turnoff road, with a given distance from the forward position, depending on a location of the specified driving lane of the own vehicle.
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Accused Products
Abstract
An on-vehicle navigation apparatus 50 includes a current location calculator 21 calculating a current location of an own vehicle, a map information database 2 storing map information including road map data, a driving lane specifying section 23 detecting a lane change in response to an operation signal from a winker and specifying a driving lane of the own vehicle, and a guidance-timing controller 24 detecting a turnoff road ahead of the own vehicle in a traveling direction and conducting turnoff road guidance on a driver at a forward position distanced from the detected turnoff road depending on a location of the specified driving lane of the own vehicle.
36 Citations
13 Claims
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1. An on-vehicle navigation apparatus comprising:
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a current location calculator calculating a current location of an own vehicle;
a map information database storing map information including road map data;
a driving lane specifying section detecting a lane change in response to an operation signal from a winker and specifying a driving lane on which the own vehicle is traveling; and
a guidance timing controller detecting a turnoff road ahead of the own vehicle in a traveling direction based on the current location of the own vehicle and the road map data, and conducting a turnoff road guidance on a driver at a forward position in front of the detected turnoff road, with a given distance from the forward position, depending on a location of the specified driving lane of the own vehicle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A turnoff road guiding method comprising:
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calculating a current location of an own vehicle;
detecting a lane change in response to an operation signal from a winker and specifying a driving lane on which the own vehicle is traveling;
detecting a turnoff road ahead of the own vehicle in a traveling direction based on the current location of the own vehicle and a road map data; and
conducting a turnoff road guidance on a driver at a forward position in front of the detected turnoff road, with a given distance from the forward position, depending on a location of the specified driving lane of the own vehicle.
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8. A driving lane specifying device comprising:
a driving lane specifying section detecting a lane change in response to an operation signal from a winker and specifying a driving lane on which an own vehicle is traveling. - View Dependent Claims (9, 10)
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11. A method of specifying a driving lane, comprising:
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detecting an operation signal from a winker;
discriminating a lane change in response to a crossing signal indicative of whether an own vehicle straddles a white line rightward or leftward; and
specifying a location of a driving lane on which the own vehicle is currently traveling.
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12. An on-vehicle navigation apparatus comprising:
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a current location calculation means calculating a current location of an own vehicle;
a map information storage means storing map information including road map data;
a driving lane specifying means detecting a lane change in response to an operation signal from a winker and specifying a driving lane on which the own vehicle is traveling; and
a guidance timing detection means detecting a turnoff road ahead of the own vehicle in a traveling direction based on the current location of the own vehicle and the road map data; and
guidance timing control means detecting a turnoff road ahead of the own vehicle in a traveling direction based on the current location of the own vehicle and the road map data, and conducting a turnoff road guidance on a driver at a forward position in front of the detected turnoff road, with a given distance from the forward position, depending on a location of the specified driving lane of the own vehicle.
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13. A driving lane specifying device comprising:
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a current location calculation means calculating a current position of an own vehicle;
a map information storage means storing map information including road map data; and
a driving lane specifying means detecting a lane change in response to an operation signal from a winker and specifying a driving lane on which the own vehicle is traveling.
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Specification