Abstract: A control apparatus for a suspension apparatus includes: an acquisition section which acquires a stroke amount of the suspension apparatus disposed between a vehicle body and a wheel to damp vibration propagated from the wheel; a calculation section which calculates a stroke velocity based on the stroke amount; and a damping force control section which controls damping force of the suspension apparatus based on the stroke velocity. The calculation section includes a first calculation section which differentiates the stroke amount by use of a first time constant as a time constant, to thereby calculate a first stroke velocity, and a second calculation section which differentiates the stroke amount by use of a second time constant larger than the first time constant as a time constant, to thereby calculate a second stroke velocity, and calculates the stroke velocity based on the first stroke velocity and the second stroke velocity.

Abstract: A first seat device includes a first pressure sensor attached to a seatback to detect pressure, a second pressure sensor attached to the seatback at a position below the first pressure sensor to detect pressure, and a control unit configured to control the angle of the seatback based on a value of the first pressure sensor and a value of the second pressure sensor.