Abstract: A control apparatus of a variable damping force damper used to suspend a vehicle body of a vehicle is configured to set a target control quantity of the variable damping force damper based on a plurality of dynamic state quantities of the vehicle, wherein the plurality of dynamic state quantities include a vertical dynamic state quantity of the vehicle.

Abstract: A control device for controlling a variable damper of a wheel suspension system includes a first sensor detecting a first dynamic state variable of a vehicle body, a damping force base value determining unit determining a target damping force base value, a second sensor detecting a second dynamic state variable of the vehicle body; a correction value determining unit determining a damping force correction value, and a target damping force determining unit determining a target damping force. When the differential value of the lateral acceleration is relatively high (or the target damping force is high), a drive current to the variable damper is increased. The same is true when the vehicle is undergoing a pitching movement. The target damping force may be obtained by subtracting the damping force correction value from the target damping force base value.

Abstract: In a control device for controlling a variable element of a wheel suspension system, the variable suspension element associated with one of the wheels is controlled at least according to an output of a sensor associated with a different one of the wheels. The output of the sensor may include a sprung mass speed of a vehicle part associated with each wheel. The variable suspension element may include a variable damping force damper or a variable spring constant spring. Thereby, an undesired response of a vehicle body can be avoided even when a vehicle is subjected to an uneven distribution of wheel loads such as when the vehicle is traveling over a slanted road surface or making a turn.

Abstract: Provide is a vehicle behavior control system that can achieve a rear wheel steering control demonstrating a high rate of response at all times without requiring the actuator for the rear wheels to be steered to be unduly increased. A control unit (20) for controlling the rear wheel steering angle is configured to reduce the effective stiffness of the rear wheel suspension systems while increasing the effective stiffness of the front wheel suspension systems when an increase in the road contact load of one of the rear wheels is detected or estimated. Thereby, an actuator (8) for the rear wheel is enabled to steering the rear wheels without involving any undue time delay with a minimum power requirement.

Abstract: In a control device for controlling a variable element of a wheel suspension system, the variable suspension element associated with one of the wheels is controlled at least according to an output of a sensor associated with a different one of the wheels. The output of the sensor may include a sprung mass speed of a vehicle part associated with each wheel. The variable suspension element may include a variable damping force damper or a variable spring constant spring. Thereby, an undesired response of a vehicle body can be avoided even when a vehicle is subjected to an uneven distribution of wheel loads such as when the vehicle is traveling over a slanted road surface or making a turn.

Abstract: A control device for controlling a variable damper of a wheel suspension system includes a first sensor detecting a first dynamic state variable of a vehicle body, a damping force base value determining unit determining a target damping force base value, a second sensor detecting a second dynamic state variable of the vehicle body; a correction value determining unit determining a damping force correction value, and a target damping force determining unit determining a target damping force. When the differential value of the lateral acceleration is relatively high (or the target damping force is high), a drive current to the variable damper is increased. The same is true when the vehicle is undergoing a pitching movement. The target damping force may be obtained by subtracting the damping force correction value from the target damping force base value.

Abstract: A control apparatus of a variable damping force damper used to suspend a vehicle body of a vehicle is configured to set a target control quantity of the variable damping force damper based on a plurality of dynamic state quantities of the vehicle, wherein the plurality of dynamic state quantities include a vertical dynamic state quantity of the vehicle.

Abstract: To provide a cleaning method and a cleaning apparatus for decreasing the total cost by producing high-performance semiconductor using silicon wafers with cleaner surface, decreasing the semiconductor production cost, decreasing the consumption of chemical solutions and the cleaning time by using a new cleaning method and apparatus, simplifying the recovery of waste liquids, and decreasing equipment investment.A cleaning method having a plurality of chemical-solution-cleaning processes characterized by performing a chemical-solution-cleaning process for continuously feeding a chemical solution to the surface of an object to be cleaned from an upper part of the object surface by horizontally setting the object in a cleaning bath, closing the bath, and then rotating the object and an ultrapure-water-cleaning process for feeding ultrapure water in order for each chemical solution in the same cleaning bath; and thereafter drying the object after cleaning it.

Abstract: A method for recirculating a high-temperature etching solution according to the present invention comprises the steps of continuously removing, from a bath for etching a wafer for a semiconductor device, a portion of an etching solution contained in the etching bath, injecting a predetermined amount of pure water for adjusting the concentration of the etching solution into the removed etching solution, heating the resulting solution to a predetermined temperature, and recirculating the heated solution into the etching bath.