Vehicle control device, vehicle control method, and vehicle control system
First Claim
1. A vehicle control device comprising:
- information acquisition circuitry that acquires information relating to a vehicle speed decreasing point where a decrease in vehicle speed is induced in front of a host vehicle; and
traveling control circuitry that, when at least one of the host vehicle has reached a predetermined distance before the vehicle speed decreasing point concerning the information acquired by the information acquisition circuitry and when a predetermined time has come before the host vehicle reaches the vehicle speed decreasing point concerning the information acquired by the information acquisition circuitry, controls the traveling of the host vehicle such that the inter-vehicle distance from another vehicle behind the host vehicle increases;
wherein the traveling control circuitryidentifies another vehicle having a vehicle speed decrease tendency for which the possibility of a decrease in vehicle speed is equal to or greater than a predetermined threshold value, andat least one of (i) when the another vehicle having the vehicle speed decrease tendency has reached a predetermined distance before the vehicle speed decreasing point and (ii) when a predetermined time has come before the host vehicle reaches the vehicle speed decreasing point, controls the traveling of the host vehicle such that the host vehicle travels in parallel with the vehicle having the vehicle speed decrease tendency.
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Accused Products
Abstract
A navigation system acquired information relating to a point, such as a sag where a decrease in vehicle speed is induced in front of a system-mounted vehicle. When the system-mounted vehicle has reached a predetermined distance from the sag concerning the information acquired by the navigation system or when a predetermined time has come before reaching the sag, an ECU and an ACC controls the traveling of the system-mounted vehicle such that the inter-vehicle distance from an ordinary vehicle behind the system-mounted vehicle increases. Therefore, even when a vehicle control device is not mounted in an ordinary vehicle behind the system-mounted vehicle, it becomes possible to prevent a decrease in the speed of the ordinary vehicle behind the system-mounted vehicle, thereby more effectively suppressing congestion.
9 Citations
9 Claims
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1. A vehicle control device comprising:
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information acquisition circuitry that acquires information relating to a vehicle speed decreasing point where a decrease in vehicle speed is induced in front of a host vehicle; and traveling control circuitry that, when at least one of the host vehicle has reached a predetermined distance before the vehicle speed decreasing point concerning the information acquired by the information acquisition circuitry and when a predetermined time has come before the host vehicle reaches the vehicle speed decreasing point concerning the information acquired by the information acquisition circuitry, controls the traveling of the host vehicle such that the inter-vehicle distance from another vehicle behind the host vehicle increases; wherein the traveling control circuitry identifies another vehicle having a vehicle speed decrease tendency for which the possibility of a decrease in vehicle speed is equal to or greater than a predetermined threshold value, and at least one of (i) when the another vehicle having the vehicle speed decrease tendency has reached a predetermined distance before the vehicle speed decreasing point and (ii) when a predetermined time has come before the host vehicle reaches the vehicle speed decreasing point, controls the traveling of the host vehicle such that the host vehicle travels in parallel with the vehicle having the vehicle speed decrease tendency. - View Dependent Claims (2, 3)
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4. A vehicle control method comprising:
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acquiring using electronic control circuitry information relating to a vehicle speed decreasing point where a decrease in vehicle speed is induced in front of a host vehicle; and at least one of when the host vehicle has reached a predetermined distance before the decreasing point concerning the information acquired in the step of acquiring the information and when a predetermined time has come before the host vehicle reaches the vehicle speed decreasing point concerning the information acquired in the step of acquiring the information, controlling with the electronic control circuitry the traveling of the host vehicle such that the inter-vehicle distance from another vehicle behind the host vehicle increases wherein the controlling of the traveling of the host vehicle includes, identifying another vehicle having a vehicle speed decrease tendency for which the possibility of a decrease in vehicle speed is equal to or greater than a predetermined threshold value, and at least one of (i) when the another vehicle having the vehicle speed decrease tendency has reached a predetermined distance before the vehicle speed decreasing point and (ii) when a predetermined time has come before the host vehicle reaches the vehicle speed decreasing point, controlling the traveling of the host vehicle such that the host vehicle travels in parallel with the vehicle having the vehicle speed decrease tendency. - View Dependent Claims (5, 6)
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7. A vehicle control system comprising:
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information acquisition unit that acquires information relating to a vehicle speed decreasing point where a decrease in vehicle speed is induced; and traveling control unit that, when at least one of one vehicle has reached a predetermined distance before the vehicle speed decreasing point concerning the information acquired by the information acquisition unit and when a predetermined time has come before the one vehicle reaches the vehicle speed decreasing point concerning the information acquired by the information acquisition unit, controls the traveling of the one vehicle such that the inter-vehicle distance from another vehicle behind the one vehicle increases; wherein the traveling control unit identifies another vehicle having a vehicle speed decrease tendency for which the possibility of a decrease in vehicle speed is equal to or greater than a predetermined threshold value, and at least one of (i) when the another vehicle having the vehicle speed decrease tendency has reached a predetermined distance before the vehicle speed decreasing point and (ii) when a predetermined time has come before the one vehicle reaches the vehicle speed decreasing point, controls the traveling of the one vehicle such that the one vehicle travels in parallel with the vehicle having the vehicle speed decrease tendency. - View Dependent Claims (8, 9)
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Specification