Seat control device

A seat control device that controls driving of an actuator for changing a posture of a seat on which an occupant of a vehicle is seated and that controls the posture of the seat in braking of the vehicle, wherein

• in a case when determining that a sinking behavior in which a front portion of the seat moves downward from a position before the braking is generated at a start of the braking of the vehicle, the seat control device executes first control of causing the actuator to output force in a direction opposite to pitch angular velocity of the seat, and
• in a case when determining that a rocking-back behavior in which the front portion of the seat moves upward from the position before the braking is generated after the execution of the first control until a stop of the vehicle, the seat control device executes second control of causing the actuator to output force in a same direction as the pitch angular velocity of the seat,
• wherein the case when determining that the sinking behavior is generated refers to a case when, by continuously monitoring an amount of brake pedal force, a change rate in brake pedal force is equal to or larger than a threshold is satisfied, the threshold based on an angular velocity calculation.