Abstract: During execution of lane keeping control, a vehicle driving support device sets a center line passing through a center of a travelable width of an own vehicle within a current lane as a target traveling line, and autonomously steers the own vehicle such that a reference point of the own vehicle moves along the target traveling line. The vehicle driving support device changes a position of the target traveling line such that the target traveling line is a line located between the center line and the reference point of the own vehicle, when a driver performs a steering operation for steering the own vehicle during the execution of the lane keeping control and a steering operation force of the driver becomes equal to or larger than a target change start threshold value.

Abstract: A processor of a vehicle control device controls an electric motor such that torque for operating a steering wheel when a driver performs an operation to rotate the steering wheel matches a predetermined first target value in a predetermined first traveling scene in which lane tracing control is being executed, and controls the electric motor such that the torque for operating the steering wheel when the driver performs an operation to rotate the steering wheel matches a second target value that is less than the first target value in a predetermined second traveling scene in which the lane tracing control is being executed, the second traveling scene being predefined as a traveling scene in which the steering wheel is operated to rotate less frequently than the first traveling scene.

Abstract: A travel control device for a vehicle includes an object information acquisition device, an automatic steering device, and an electronic control unit. The electronic control unit is configured to gradually decrease a target correction quantity of a steering angle when the electronic control unit determines that travel control needs to be ended. The electronic control unit is configured to change a degree of decrease of the target correction quantity to different degrees based on a magnitude relationship between a target control quantity and an actual control quantity closest to a time point at which it is determined that the travel control needs to be ended.

Abstract: A vehicle driving support device sets a steering force of a reference value as an intervention steering force to set a target steering force and executes lane deviation suppression control, when a straight lane deviation condition or a curve inner lane deviation condition is satisfied while a pre-intervention in-phase condition is not satisfied. The pre-intervention in-phase condition is a condition that a steering operation force that is equal to or larger than a predetermined value and that is applied in a direction of returning an own vehicle that has deviated from a lane to the lane is being input to the own vehicle by a driver of the own vehicle.

Abstract: During execution of lane keeping control, a vehicle driving support device sets a center line passing through a center of a travelable width of an own vehicle within a current lane as a target traveling line, and autonomously steers the own vehicle such that a reference point of the own vehicle moves along the target traveling line. The vehicle driving support device changes a position of the target traveling line such that the target traveling line is a line located between the center line and the reference point of the own vehicle, when a driver performs a steering operation for steering the own vehicle during the execution of the lane keeping control and a steering operation force of the driver becomes equal to or larger than a target change start threshold value.