Abstract: A seat reclining position control device includes: a seat on which an occupant of a vehicle sits; an adjustment part configured to adjust an angle of a backrest of the seat; a sleep state detection unit configured to detect a sleep state of the occupant; a control unit that operates the adjustment unit to control the angle; and a vehicle interior detection unit configured to detect a vehicle interior state of the vehicle. The control unit implements a seat angle control to adjust the angle of the backrest for the occupant in the sleep state based on the vehicle interior state to a suitable sleeping angle suitable for sleeping when the sleep state detection unit detects the sleep state of the occupant.

Abstract: A control device is used in a subject vehicle capable of performing autonomous driving with no obligation for a driver to monitor periphery. The control device determines whether a permission state, in which a specific act other than driving is permitted to the driver, is continued or not when approach of an emergency vehicle to the subject vehicle is detected during an autonomous cruising period in which the autonomous driving is being performed. The control device restricts display of a content provided to the driver when the permission state of the specific act is determined to be not continued.

Abstract: A presentation control device is configured to control information presentation to a driver of a vehicle. A determination unit is configured to distinguish between a monitoring interruption mode in which the driver is permitted to interrupt surroundings monitoring and a monitoring-required mode in which the driver is prohibited to interrupt the surroundings monitoring, and in the monitoring-required mode, between a hands-free permitted state and a hands-free prohibited state. A presentation control unit configured to perform the information presentation related to a mode transition from the monitoring interruption mode to the monitoring-required mode when the mode transition occurs. The presentation control unit is configured to perform the information presentation at an earlier timing when the monitoring interruption mode is transitioned to the hands-free prohibited state than when the monitoring interruption mode is transitioned to the hands-free permitted state.

Abstract: A traffic congestion determination unit is configured to determine whether a traffic congestion occurs in an automatic travel period in which the vehicle travels by an automatic driving function. A cut-in prediction unit is configured to detect a sign of cut-in of an adjacent vehicle, which is adjacent to a subject vehicle as the vehicle, on determination by the traffic congestion determination unit that a traffic congestion occurs. A provision restricting unit is configured to restrict display of content provided in the automatic travel period on detection of a sign of cut-in of the adjacent vehicle by the cut-in prediction unit.

Abstract: A human machine interface control unit as an information presentation control device is used in a vehicle having an autonomous driving function to perform a driving action on behalf of a driver, and controls an information presentation device configured to present information to the driver. The human machine interface control unit includes a permissible action determination unit configured to determine a permissible action that a driver is permitted to take among actions, other than a driving action, to be possibly taken by the driver when the autonomous driving function is implemented, and an information presentation content control unit configured to cause an information presentation device to present information related to a determination result of the permissible action.