Driving assistance device
AssigneeHitachi Astemo, Ltd.
InventorsTomoyasu Sakaguchi, Masashi Seimiya, Keisuke Takeuchi
Life of this patent
Estimating the term…
Abstract
A driving assistance device that includes a processor and a memory and assists driving of a vehicle includes: an external environment information acquisition unit that acquires external environment information of the vehicle; an obstacle detection unit that detects an obstacle in front of the vehicle from the external environment information; a lane detection unit that detects a lane boundary line and a road edge from the external environment information; an alarm unit that issues an alarm or performs steering assist when deviation from the lane boundary line or the road edge is detected; and a state management unit that suppresses the alarm or the steering assist when the obstacle detection unit detects the obstacle.
Claims9
A driving assistance device that includes a processor and a memory and assists driving of a vehicle, the driving assistance device comprising:
- an external environment information acquisition unit that acquires external environment information of the vehicle;
- an obstacle detection unit that detects an obstacle in front of the vehicle from the external environment information;
- a lane detection unit that detects a lane boundary line and a road edge from the external environment information;
- an alarm unit that issues an alarm or performs steering assist when deviation from the lane boundary line or the road edge is detected;
- and
- a state management unit that suppresses the alarm or steering assist by the alarm unit when the obstacle detection unit detects the obstacle, wherein
- the alarm unit includes:
- a lane deviation prevention alarm unit that issues an alarm or performs steering assist in a case where the vehicle deviates from the lane boundary line,
- a road edge deviation prevention alarm unit that issues an alarm or performs steering assist in a case where the vehicle deviates from the road edge or where there is a possibility that the vehicle may deviate from the road edge, and wherein
- when the obstacle is detected, the state management unit suppresses the alarm or steering assist of the lane deviation prevention alarm unit, and
- the road edge deviation prevention alarm unit determines deviation from the road edge using an own-vehicle rectangle having a size larger than an own-vehicle rectangle used by the lane deviation prevention alarm unit.
A driving assistance device that includes a processor and a memory and assists driving of a vehicle, the driving assistance device comprising:
- an external environment information acquisition unit that acquires external environment information of the vehicle;
- a lane detection unit that detects a lane boundary line and a road edge from the external environment information;
- a travel route prediction unit that predicts a travel route of the vehicle and calculates a predicted route;
- a lane return determination unit that determines that the predicted route temporarily deviates from the lane boundary line;
- an alarm unit that issues an alarm or performs steering assist when deviation from the lane boundary line or the road edge is detected;
- and
- a state management unit that suppresses the alarm or steering assist by the alarm unit when the lane return determination unit determines a temporary deviation from the lane boundary line, wherein
- the alarm unit includes:
- a lane deviation prevention alarm unit that issues an alarm or performs steering assist in a case where the vehicle deviates from the lane boundary line, and
- a road edge deviation prevention alarm unit that issues an alarm or performs steering assist in a case where the vehicle deviates from the road edge or where there is a possibility that the vehicle may deviate from the road edge, and wherein
- when the temporary deviation from the lane boundary line is determined, the state management unit suppresses the alarm or steering assist of the lane deviation prevention alarm unit, and
- the road edge deviation prevention alarm unit determines deviation from the road edge using an own-vehicle rectangle having a size larger than an own-vehicle rectangle used by the lane deviation prevention alarm unit.
Dependencies are inferred from the claim text.