Suspension control device and suspension device

A suspension device comprising:

• a suspension;
• and
• a control section configured to control a damping force of the suspension,
• the control section comprising:
• a road surface determining section configured to determine a road surface condition;
• and
• a control variable calculating section configured to calculate, in accordance with a result of the determination by the road surface determining section, a steering-based desired control variable which is to be referred to in controlling the damping force of the suspension,
• the control variable calculating section comprising:
• a first desired control variable calculating section configured to calculate a first desired control variable which is to be referred to in calculating the steering-based desired control variable;
• a second desired control variable calculating section configured to calculate a second desired control variable which is to be referred to in calculating the steering-based desired control variable;
• a multiplying section configured to multiply a value of the first desired control variable by a coefficient in accordance with the result of the determination by the road surface determining section;
• and
• a selecting section configured to select the steering-based desired control variable from a plurality of candidates including the first desired control variable multiplied by the coefficient and the second desired control variable,
• the first desired control variable calculating section being configured to:
• calculate the first desired control variable with reference to a steering torque signal indicative of a steering torque which is applied to a steering member used by a driver for steering;
• and
• output, as the first desired control variable, a control variable having a higher value selected from between a control variable calculated with reference to a torque indicated by the steering torque signal and a control variable calculated with reference to a torque speed indicating a change over time in the torque,
• the second desired control variable calculating section being configured to:
• calculate the second desired control variable with reference to a steering angle signal of the steering member;
• and
• output, as the second desired control variable, a control variable having a higher value selected from between a control variable calculated with reference to a steering angle indicated by the steering angle signal and a control variable calculated with reference to a steering angle speed indicating a change over time in the steering angle.