Abstract: At least one second I/O switch which a plurality of I/O devices is coupled to is coupled to at least one first I/O switch to which a plurality of servers is coupled. A configuration in which all servers that are coupled to the first I/O switch can be coupled to all I/O cards that are coupled to the at least one second I/O switch that is coupled to the first I/O switch is executed. The controller receives the specifications of a server unit and an I/O device unit that is to be coupled to the server unit. The controller executes a setting in which at least one I/O device that configures the specified I/O device unit is allocated to at least one server that configures the specified server unit to the second I/O switch to which the at least one I/O device is coupled.

Abstract: It is provided a control device for a vehicular on/off control valve used in a hydraulic control circuit of a vehicle for switching an operating state of the on/off control valve between a turn-on state or a turn-off state on electrically-magnetizing or non-electrically-magnetizing a solenoid incorporated in the on/off control valve, the control device being operable to set a current value current-supplied to the solenoid in an operation initiating current value needed for initially switching the on/off control valve from the turn-off state to the turn-on state during an electrically-magnetized state of the solenoid, and in a sustaining current value lower than the operation initiating current value and needed for sustaining the turn-on state after switched to the turn-on state.

Abstract: A solenoid valve includes a valve housing in which a spool valve element is fitted to be reciprocably slidable along an axis; a magnet coil that moves the spool valve element in a first direction along the axis by an action of an electromagnetic force; a return spring that biases the spool valve element in a second direction, opposite to the first direction, and moves the spool valve element in the second direction when the magnet coil is not excited; and first and second attraction members that are respectively fixed to the spool valve element and the valve housing such that they are spaced from each other along the axis by a distance no less than a maximum moving amount of the spool valve element and attract each other by an attraction force smaller than a bias force of the return spring when the magnet coil is not excited.

Abstract: A control system includes a nonvolatile memory of an electronic controller, which stores information regarding operation characteristics of a hydraulic-pressure control valve that serves as an actuator in advance, and an electronic control unit that controls an operation of the hydraulic-pressure control valve based on the information. The electronic control unit is formed separately from the hydraulic-pressure control valve. The electronic controller is formed integrally with the hydraulic-pressure control valve. The control system and the actuator simplify a work for replacing the electronic control unit or the actuator.