Disclosed is a method for transmitting a vehicle-to-everything (V2X) message by a V2X communication device of a vehicle. The method for transmitting a V2X message by a V2X communication device of a vehicle comprises the steps of detecting a lane change of a target vehicle followed by the subject vehicle; setting a CACC mode on the basis of a preset operation determination for a lane change when the lane change of the target vehicle is detected; and transmitting a V2X message including information on the set CACC mode, wherein the CACC mode includes a single-lane CACC mode for providing a single-lane CACC service and a multi-lane CACC mode for providing a multi-lane CACC service.

Provided are a travel control device that enhance safety while enabling smooth overtaking of a vehicle from tracking travel. This travel control device is equipped with a direction indication determination unit, a travel control unit that performs control to switch travel of the vehicle between tracking travel whereby the vehicle is made to travel by tracking the preceding vehicle and propulsion travel whereby the vehicle is made to travel so as to match the speed of the vehicle to a target speed, and an inter-vehicle distance detection unit that detects the inter-vehicle distance in tracking travel between the vehicle and the preceding vehicle. In cases in which, during tracking travel, it is determined that direction indication of vehicle has been activated and the inter-vehicle distance exceeds a prescribed distance, the travel control unit switches travel of the vehicle from tracking travel to propulsion travel.

A control system that is suitable for use in a host motor vehicle (10) is configured and intended for detecting (S100) another motor vehicle (20), using the road, located in front of the host motor vehicle (10) by means of the at least one surroundings sensor, determining (S106) a lateral movement of the other motor vehicle (20) relative to a lane (12, 16) in which the other motor vehicle (20) or the host motor vehicle (10) is present, and computing (S108) a movement-based likelihood of a lane change by the other motor vehicle (20), based on the determined lateral movement of the other motor vehicle (20). In addition, the control system is configured and intended for determining (S110, S112, S114) an instantaneous traffic situation in accordance with the surroundings data obtained by means of the surroundings sensor, computing (S116) a traffic situation-based likelihood of a lane change by the other motor vehicle (20), based on the determined instantaneous traffic situation, and computing (S118) an overall likelihood of a lane change by the other motor vehicle (20), based on the movement-based likelihood and the traffic situation-based likelihood.

Provided is a vehicle travel control device capable of improving the usability of a following control by detecting dangerous behavior in a preceding vehicle, and differing the release timing of the following control. A vehicle travel control device having a preceding vehicle behavior recognition means for obtaining behavior information for a preceding vehicle, a preceding vehicle behavior determination means for detecting the degree of risk of dangerous behavior in the preceding vehicle from the behavior information, and determining the feasibility of a following control targeting the preceding vehicle on the basis of the detected dangerous behavior risk degree, and a vehicle operation control means for outputting an acceleration/deceleration/braking/steering control command to an actuator on the basis of the feasibility determination for the following control, wherein dangerous behavior is detected on the basis of the preceding vehicle behavior information, and the timing differs between a first release timing for the following control when a first dangerous behavior is detected and a second release timing for the following control when a second dangerous behavior different from the first dangerous behavior is detected.

A system comprises a computer having a processor and a memory, the memory storing instructions executable by the processor to monitor conditions of a roadway as a vehicle travels the roadway while an adaptive cruise control feature of the vehicle is active, identify an expected condition change based on the monitoring the conditions of the roadway, determine a preferred power state for an engine of the vehicle based on the expected condition change, determine that an engine power state transition is planned for the engine, the engine power state transition including transitioning the engine from a current power state to a planned power state, and resolve the engine power state transition based on the preferred power state.

A vehicle information projecting system includes: an image-capturing unit capturing an image of a road in front of a vehicle; a display mechanism projecting vehicle information onto a display region set as a portion of a windshield and displaying the vehicle information in the display region so that a virtual image of the vehicle information overlaps the actual landscape from the viewpoint of the vehicle driver; a rear vehicle information acquiring unit acquiring rear vehicle information representing the fact that a rear vehicle is present at the rear of the vehicle; lane change information acquiring units acquiring lane change information representing the fact that the vehicle is changing lanes from a traveling lane to a lane adjacent to the traveling lane; and a processing unit assessing the degree to which attention should be paid to the rear vehicle, based on the rear vehicle information and the lane change information.

The present invention obtains a controller and a control method capable of improving safety of adaptive cruise operation in a motorcycle. In the controller for operation of the motorcycle, to which a surrounding environment detector is mounted, an adaptive cruise operation performing section controls deceleration to be generated by the motorcycle in adaptive cruise operation to be equal to or lower than an upper limit value or to be lower than the upper limit value, determines a collision possibility of the motorcycle on the basis of the upper limit value during the adaptive cruise operation, and performs warning operation that acts on a tactile organ of a rider of the motorcycle when determining that the collision possibility is high.

A vehicle information projecting system includes: an image-capturing unit capturing an image of a road in front of a vehicle; a display mechanism projecting vehicle information onto a display region set as a portion of a windshield and displaying the vehicle information in the display region so that a virtual image of the vehicle information overlaps the actual landscape from the viewpoint of the vehicle driver; a rear vehicle information acquiring unit acquiring rear vehicle information representing the fact that a rear vehicle is present at the rear of the vehicle; lane change information acquiring units acquiring lane change information representing the fact that the vehicle is changing lanes from a traveling lane to a lane adjacent to the traveling lane; and a processing unit assessing the degree to which attention should be paid to the rear vehicle, based on the rear vehicle information and the lane change information.

A control system that is suitable for use in a host motor vehicle (10) Is configured and intended for detecting (S100) another motor vehicle (20), using the road, located in front of the host motor vehicle (10) by means of the at least one surroundings sensor, determining (S106) a lateral movement of the other motor vehicle (20) relative to a lane (12, 16) in which the other motor vehicle (20) or the host motor vehicle (10) is present, and computing (S108) a movement-based likelihood of a lane change by the other motor vehicle (20), based on the determined lateral movement of the other motor vehicle (20). In addition, the control system is configured and intended for determining (S110, S112, S114) an instantaneous traffic situation in accordance with the surroundings data obtained by means of the surroundings sensor, computing (S116) a traffic situation-based likelihood of a lane change by the other motor vehicle (20), based on the determined instantaneous traffic situation, and computing (S118) an overall likelihood of a lane change by the other motor vehicle (20), based on the movement-based likelihood and the traffic situation-based likelihood.

A vehicle traveling control apparatus of the invention executes a following-travel inter-vehicle-distance control for controlling acceleration and deceleration of an own vehicle such that an inter-vehicle distance between the own vehicle and a preceding vehicle is maintained at a target distance. The apparatus sets the target distance to a base distance and executes the following-travel inter-vehicle-distance control when the driver is determined not to be under the abnormal state. The apparatus sets the target distance to an increased distance larger than the base distance and executes the following-travel inter-vehicle-distance control when the driver is determined to be under the abnormal state.