Abstract: A hydraulic pressure control apparatus includes a solenoid valve; a hysteresis hydraulic pressure correction amount calculation section calculating a hysteresis hydraulic pressure correction amount and a command current control section controlling the command current in accordance with the hysteresis hydraulic pressure correction amount. The hysteresis hydraulic pressure correction amount calculation section has, as a reference map, a full hysteresis characteristic, and is configured to make a plurality of reduction maps obtained by reducing the reference map in accordance with a turn-round position at one of minor loops from a past to a present time when the minor loop continues, and to calculate the hysteresis hydraulic pressure correction amount by summation of hysteresis hydraulic pressure correction amounts obtained by the reduction maps in the same command current position.

Abstract: An object of the present invention is to provide a multichannel power controller for limiting the number of channels with outputs therefrom simultaneously turned on and enabling power conditioning that makes the ratio of the “ON time” to the “ON+OFF time” for the output proportional to the input value, thus allowing the power capacity of the power plant to be set to the minimum required value, when a plurality of channels are subjected to time-sharing output control.

Abstract: A controller is provided for HVAC equipment. The controller has a processor, memory, and a RF module for a home automation network, and is operable to regulate operation of the HVAC equipment based upon a scheduling program stored in memory. The scheduling program includes at least one usage periods and at least one set point associated with each usage period. The controller is also operable to regulate operation of remote electrical devices over the home automation network; and to create a device scheduling program for the remote electrical devices, the device scheduling program including at least one device period and an operational state associated with each device period.