Abstract: A target value of magnetic flux density and magnetic flux density actually obtained are made to coincide precisely with each other. An electromagnet control device comprises a current value determining unit for determining, based on a magnetic flux density instruction value, a value of current that is made to flow through a coil. The current value determining unit is constructed to execute a second process for determining, based on a second function, a value of the current, if the magnetic flux density is to be decreased from that in a first magnetization state, and a fourth process for expanding or reducing the second function by use of a first scaling ratio for transforming it to a fourth function, and determining, based on the fourth function obtained after above transformation, a value of the current, if the magnetic flux density is to be decreased from that in a third magnetization state.

Abstract: A target value of magnetic flux density and magnetic flux density actually obtained are made to coincide precisely with each other. An electromagnet control device comprises a current value determining unit for determining, based on a magnetic flux density instruction value, a value of current that is made to flow through a coil. The current value determining unit is constructed to execute a second process for determining, based on a second function, a value of the current, if the magnetic flux density is to be decreased from that in a first magnetization state, and a fourth process for expanding or reducing the second function by use of a first scaling ratio for transforming it to a fourth function, and determining, based on the fourth function obtained after above transformation, a value of the current, if the magnetic flux density is to be decreased from that in a third magnetization state.

Abstract: A target value of magnetic flux density and magnetic flux density actually obtained are made to coincide precisely with each other. An electromagnet control device comprises a current value determining unit for determining, based on a magnetic flux density instruction value, a value of current that is made to flow through a coil. The current value determining unit is constructed to execute a second process for determining, based on a second function, a value of the current, if the magnetic flux density is to be decreased from that in a first magnetization state, and a fourth process for expanding or reducing the second function by use of a first scaling ratio for transforming it to a fourth function, and determining, based on the fourth function obtained after above transformation, a value of the current, if the magnetic flux density is to be decreased from that in a third magnetization state.

Abstract: The electromagnet device of the present invention comprises: a yoke having an annular groove in a front surface thereof; an annular coil provided in the groove; and an epoxy resin provided on an outer surface of the coil configured to secure the coil to the yoke, wherein there is a clearance between an outer circumferential surface of the groove in the yoke and the epoxy resin provided on an radially outer side of the coil.

Abstract: An electromagnet control device includes a current value determining circuit configured to execute a second process for determining, based on a second function, a value of the current, in the case that the magnetic flux density is to be decreased from that in a first magnetization state, and a fourth process for expanding or reducing the second function by use of a first scaling ratio for transforming it to a fourth function, and determining, based on the fourth function obtained after above transformation, a value of the current, in the case that the magnetic flux density is to be decreased from that in a third magnetization state. The current value determining circuit is further configured to determine the first scaling ratio in such a manner that the second function fits measured data that are obtained in advance by decreasing the magnetic flux density from that in the third magnetization state.

Abstract: A magnetic levitated pump that does not cause pulsation of a pumped liquid and can suppress the generation of particles, which are liable to be produced by contact of a sliding part, is disclosed. The magnetic levitated pump for magnetically levitating an impeller housed in a pump casing includes a motor configured to rotate the impeller, and an electromagnet configured to magnetically support the impeller. The motor and the electromagnet are arranged so as to face each other across the impeller, and the motor is arranged on the opposite side of a suction port of the pump casing.

Abstract: Provided is an arithmetic processing to reduce a number of parts as it is not necessary to prepare an operation device for each input processing logic. A plurality of types of input processing logics is stored in the ROM, and CPU selects one of the plurality of types of input processing logics and executes input processing according to the selected input processing logic. As a result, there is no need to prepare the ECU for each input processing logic, reducing the number of parts.

Abstract: A target value of magnetic flux density and magnetic flux density actually obtained are made to coincide precisely with each other. An electromagnet control device comprises a current value determining unit for determining, based on a magnetic flux density instruction value, a value of current that is made to flow through a coil. The current value determining unit is constructed to execute a second process for determining, based on a second function, a value of the current, if the magnetic flux density is to be decreased from that in a first magnetization state, and a fourth process for expanding or reducing the second function by use of a first scaling ratio for transforming it to a fourth function, and determining, based on the fourth function obtained after above transformation, a value of the current, if the magnetic flux density is to be decreased from that in a third magnetization state.

Abstract: An electromagnet control device includes a current value determining circuit configured to execute a second process for determining, based on a second function, a value of the current, in the case that the magnetic flux density is to be decreased from that in a first magnetization state, and a fourth process for expanding or reducing the second function by use of a first scaling ratio for transforming it to a fourth function, and determining, based on the fourth function obtained after above transformation, a value of the current, in the case that the magnetic flux density is to be decreased from that in a third magnetization state. The current value determining circuit is further configured to determine the first scaling ratio in such a manner that the second function fits measured data that are obtained in advance by decreasing the magnetic flux density from that in the third magnetization state.

Abstract: An in-vehicle production lighting system includes: an acceleration sensor configured to detect an acceleration of a vehicle; light emitters arranged at a prescribed position in a cabin of the vehicle and capable of changing light intensity and light color in a prescribed lighting pattern; and a controller configured to generate or select the prescribed lighting pattern depending on a detection result obtained by the acceleration sensor and control the light emitters.

Abstract: Provided is an arithmetic processing to reduce a number of parts as it is not necessary to prepare an operation device for each input processing logic. A plurality of types of input processing logics is stored in the ROM, and CPU selects one of the plurality of types of input processing logics and executes input processing according to the selected input processing logic. As a result, there is no need to prepare the ECU for each input processing logic, reducing the number of parts.

Abstract: A lighting device which can produce various fade operations without significantly consuming memory capacity is provided. Duty ratios for a plurality of steps are recorded in a ROM of a slave ECU. The slave ECU sets an interval time for 1 step, reads out from a map brightness of a next step at each set interval time, and outputs a pulse with the read out duty ratio to a LED. A change duty ratio, a pre-change interval time and a post-change interval time are recorded in the ROM. The slave ECU sets the interval time for 1 step to the pre-change interval time before the duty ratio of the LED reaches to the change duty ratio, and changes the setting by setting the interval time for 1 step to the post-change interval time after the duty ratio of the LED has reached to the change duty ratio.

Abstract: A vehicle interior lighting apparatus for illuminating the interior of a vehicle, being equipped with a plurality of light source units each having a light source emitting the three primary colors of light and a control connector for simultaneously controlling the on/off operations and the luminance levels of predetermined two colors in all the light source units and for individually controlling the on/off operation and the luminance level of one color other than the predetermined two colors in each of the light source units.

Abstract: A lighting device which can produce various fade operations without significantly consuming memory capacity is provided. Duty ratios for a plurality of steps are recorded in a ROM of a slave ECU. The slave ECU sets an interval time for 1 step, reads out from a map brightness of a next step at each set interval time, and outputs a pulse with the read out duty ratio to a LED. A change duty ratio, a pre-change interval time and a post-change interval time are recorded in the ROM. The slave ECU sets the interval time for 1 step to the pre-change interval time before the duty ratio of the LED reaches to the change duty ratio, and changes the setting by setting the interval time for 1 step to the post-change interval time after the duty ratio of the LED has reached to the change duty ratio.

Abstract: A vehicle interior illumination device for controlling illumination in a vehicle interior includes an operation input portion configured to receive an instruction operation of either lighting or light adjustment by a user, a first state detection portion configured to detect a first state representative of a getting-off preparation of the user, a second state detection portion configured to detect a second state representative of a getting-off completion of the user, and a light adjustment degree setting portion configured to shift the illumination to a preset light adjustment degree including off when the first state and the second state are detected.

Abstract: A vehicle interior lighting apparatus for illuminating the interior of a vehicle, being equipped with a first lighting section having a light source emitting light and a light guide plate emitting light by virtue of the light from the light source, wherein the first lighting section has a planar light emitting section emitting light emitted from the light source in a planar manner and a linear light emitting section integrated with the planar light emitting section and emitting light emitted from the light source linearly.

Abstract: The electromagnet device of the present invention comprises: a yoke having an annular groove in a front surface thereof; an annular coil provided in the groove; and an epoxy resin provided on an outer surface of the coil configured to secure the coil to the yoke, wherein there is a clearance between an outer circumferential surface of the groove in the yoke and the epoxy resin provided on an radially outer side of the coil.

Abstract: An in-vehicle production lighting system includes: an acceleration sensor configured to detect an acceleration of a vehicle; light emitters arranged at a prescribed position in a cabin of the vehicle and capable of changing light intensity and light color in a prescribed lighting pattern; and a controller configured to generate or select the prescribed lighting pattern depending on a detection result obtained by the acceleration sensor and control the light emitters.

Abstract: A vehicle interior illumination device for controlling illumination in a vehicle interior includes an operation input portion configured to receive an instruction operation of either lighting or light adjustment by a user, a first state detection portion configured to detect a first state representative of a getting-off preparation of the user, a second state detection portion configured to detect a second state representative of a getting-off completion of the user, and a light adjustment degree setting portion configured to shift the illumination to a preset light adjustment degree including off when the first state and the second state are detected.

Abstract: A vehicle interior illumination device includes: illumination parts respectively provided in a plurality of positions in a vehicle; and a control part which controls turning on and off operations and illuminating colors of the illumination parts. The control part allows the illumination parts respectively to emit lights by different colors of a same type relating to a theme selected by the control part.