Abstract: A vehicle includes a communicator, a road-surface abnormality determiner, and a driving controller. The communicator is configured to establish communication with a following vehicle following the vehicle driving ahead in a travel road. The road-surface abnormality determiner is configured to determine whether there is an abnormality on a road surface of the travel road, based on comparison between first driving information, serving as a reference to be used when the vehicle drives on the travel road, and second driving information detected as a result of the vehicle having actually driven. When the road-surface abnormality determiner determines that there is the abnormality, the driving controller is configured to predict whether the following vehicle is able to avoid the abnormality and to send an instruction to avoid the abnormality to the following vehicle via the communicator if the driving controller predicts that the following vehicle is able to avoid the abnormality.

Abstract: An intake device of an internal combustion engine includes a partition, a gap, and a projecting part. The partition divides an interior of an intake pipe into a first passage and a second passage. The gap exists at a boundary between an inner face of the intake pipe and the partition or in the partition, and couples the first passage and the second passage. The projecting part is disposed near the gap on a face of the partition or the inner face of the intake pipe that forms an inner face of the first passage, or on a face of the partition or the inner face of the intake pipe that forms an inner face of the second passage.

Abstract: An intake device of an internal combustion engine includes a partition, a gap, and a projecting part. The partition divides an interior of an intake pipe into a first passage and a second passage. The gap exists at a boundary between an inner face of the intake pipe and the partition or in the partition, and couples the first passage and the second passage. The projecting part is disposed near the gap on a face of the partition or the inner face of the intake pipe that forms an inner face of the first passage, or on a face of the partition or the inner face of the intake pipe that forms an inner face of the second passage.