Driving assistance apparatus and driving assistance method
AssigneeHitachi Astemo, Ltd.
InventorSeiji Watanabe
Life of this patent
Estimating the term…
Abstract
A driving assistance apparatus includes: a communication function detection unit that detects whether or not a surrounding vehicle is equipped with a communication function; a surrounding vehicle information acquisition unit that acquires a relative distance between the host vehicle and a surrounding vehicle equipped with the communication function on the basis of information acquired from the surrounding vehicle equipped with the communication function; and a manually driven vehicle estimation unit that estimates whether or not a manually driven vehicle is present around the host vehicle.
Claims6
A driving assistance apparatus, comprising one or more memory devices having a program stored thereon that, when executed by one or more processors, causes the one or more processors to:
- detect whether or not a surrounding vehicle is equipped with a communication function;
- acquire a relative distance between a host vehicle and the surrounding vehicle equipped with the communication function on a basis of information acquired from the surrounding vehicle equipped with the communication function;
- estimate whether or not a manually driven vehicle is present around the host vehicle;
- estimate that the manually driven vehicle is present between a first autonomous vehicle and a second autonomous vehicle, in a case where an inter-vehicle distance between the first autonomous vehicle and the second autonomous vehicle is longer than a predetermined distance;
- output braking/acceleration data that causes the host vehicle travelling in parallel with the manually driven vehicle or a vehicle that travels in front of or behind the host vehicle to increase the inter-vehicle distance with a preceding vehicle in a case where a relative distance between the host vehicle and the vehicle that travels in front of or behind the host vehicle is shorter than a relative distance between the first autonomous vehicle and the second autonomous vehicle;
- and
- prompt the manually driven vehicle to make a lane change in response to an increase in the inter-vehicle distance between the host vehicle and the preceding vehicle.
A driving assistance method executed by a driving assistance apparatus, the driving assistance apparatus including an arithmetic device that executes predetermined processing and a storage device connected to the arithmetic device,
- the method comprising:
- detecting whether or not a surrounding vehicle is equipped with a communication function;
- acquiring a relative distance between a host vehicle and the surrounding vehicle equipped with the communication function on a basis of information acquired from the surrounding vehicle equipped with the communication function;
- estimating whether or not a manually driven vehicle is present around the host vehicle;
- estimating that the manually driven vehicle is present between a first autonomous vehicle and a second autonomous vehicle, in a case where and inter-vehicle distance between the first autonomous vehicle and the second autonomous vehicle is longer than a predetermined distance;
- outputting braking/acceleration data that causes the host vehicle travelling in parallel with the manually driven vehicle or a vehicle that travels in front of or behind the host vehicle to increase an inter-vehicle distance with a preceding vehicle in a case where a relative distance between the host vehicle and the vehicle that travels in front of or behind the host vehicle is shorter than a relative distance between the first autonomous vehicle and the second autonomous vehicle;
- and
- prompting the manually driven vehicle to make a lane change in response to an increase in the inter-vehicle distance between the host vehicle and the preceding vehicle.
Dependencies are inferred from the claim text.