Abstract: This spot welding method is a method for joining workpieces being a layered body of three or more metal sheets by supplying welding current. The welding current has a pulse-like waveform wherein a peak state in which the current reaches or is maintained to be within a set peak current range and a non-peak state in which the current is lowered from the peak current range to a set bottom current, and is then increased toward the peak current range again are alternately achieved. In the non-peak state, in the case where an effective value Irms of the welding current is lowered, and reaches a predetermined effective value target range, a current control process for increasing the welding current toward the peak current range is started.

Abstract: In an engine, a cylinder block and a cylinder head are connected with a crankcase in a forwardly inclined posture. A dual clutch connects or disconnects a transmission path of power of the engine to a transmission. An actuator chamber houses an actuator that controls a hydraulic pressure of the dual clutch. The actuator chamber is disposed on an upper surface of the cylinder block at a position posterior to the cylinder head and anterior to the crankcase in a vehicle longitudinal direction.

Abstract: Provided is a spot welding method by which welding can be performed successfully while inhibiting occurrence of expulsion. First to third metal plates W1 to W3 were welded in which a ratio of a total thickness to a thickness of the first metal plate W1 is 7. In Example 1, a peak current value A1 is 14.6 kA, an effective current value A2 is 7.8 kA, a peak duration T1 is 0.1 ms, and a no-peak duration T2 is 5.9 ms. As a result, a lower limit current value A3 is 6.9 kA, an upper limit current value A4 is 8.42 kA, a difference A5 between A4 and A3 is 1.52 kA, T2/T1 is 59.0, A2/A1 is 0.53, and rising time T3/falling time T4 is 0.53, furthermore, no expulsion occurs, and a welding result was determined to be OK.

Abstract: To provide a semiconductor circuit capable of slightly generating inductance in two facing bus bars. Provided with a semiconductor circuit in which a collector-side bus bar 46 and an emitter-side bus bar 41 are arranged in parallel in a state of being isolated from each other and are fitted in a fixed manner to each other, and a inductance generation portion 411 is provided in one or both of the collector-side bus bar 46 and the emitter-side bus bar 41, the inductance generation portion 411 generating a difference in inductance between the collector-side bus bar 46 and the emitter-side bus bar 41.

Abstract: An inductively-coupled plasma processing apparatus for performing an inductively-coupled plasma processing on a rectangular substrate, includes: a processing container; a mounting table for mounting the substrate thereon; a rectangular metal window provided to be electrically insulated from the processing container while facing the mounting table; and an antenna unit for generating an inductively-coupled plasma inside the processing container. The metal window is divided into divided regions electrically insulated from each other by a first division extending in a radial direction toward each corner portion of the metal window. The antenna unit includes a first high-frequency antenna in which antenna segments having planar portions facing an upper surface of the metal window are arranged. Each antenna segment is configured by spirally winding an antenna wire in a vertical direction orthogonal to the upper surface of the rectangular metal window so that a winding axis is parallel to the upper surface.

Abstract: A valve opening and closing system includes: a site/center switching manual valve; a manual valve for opening and closing operation; an opening/closing switching electric driving valve that opens and closes a manual valve and that nullifies the manual valve for opening and closing operation; a center wireless transmitter that accepts and transmits an operation instruction including an opening and closing operation instruction and a forced closing operation instruction; and a site wireless transmitter, and a contact signal converter, the site side valve control device transmits both of the opening and closing operation instruction and the forced closing operation instruction to the contact signal converter when the site/center switching manual valve is switched to the center control side, and interrupts the opening and closing operation instruction and transmits the forced closing operation instruction to the contact signal converter when the site/center switching manual valve is switched to on site.

Abstract: To wirelessly transmit, from intrinsically-safe type equipment placed in a hazardous area, a loop electrical signal measurement value obtained from flameproof type equipment. A flameproof input intrinsically-safe output transmitter covered with a flameproof enclosure includes an intrinsically-safe-side terminal connected to an intrinsically-safe built-in battery type wireless device, a flameproof-side electrical signal terminal configured to input a loop electrical signal, and an electrical input signal transmitter circuit configured to measure the loop electrical signal and transmit a signal in accordance with a measurement result to the intrinsically-safe-side terminal.

Abstract: In an engine, a cylinder block and a cylinder head are connected with a crankcase in a forwardly inclined posture. A dual clutch connects or disconnects a transmission path of power of the engine to a transmission. An actuator chamber houses an actuator that controls a hydraulic pressure of the dual clutch. The actuator chamber is disposed on an upper surface of the cylinder block at a position posterior to the cylinder head and anterior to the crankcase in a vehicle longitudinal direction.

Abstract: An electricity storage device is provided with a heat transfer sheet which is arranged between an electricity storage body and a water jacket and which is capable of being elastically deformed. The water jacket has formed therein a fluid distribution section in communication with a cooling fluid inlet of the water jacket, a fluid recovery section in communication with a cooling fluid outlet of the water jacket, and a heat exchange section which connects the fluid distribution section and the fluid recovery section via a fluid passageway partitioned by fins rising in the thickness direction of the water jacket. The heat transfer sheet is arranged in an area which corresponds to the heat exchange section on the surface of a body section and which does not overlap the fluid distribution section and the fluid recovery section.

Abstract: An engine clutch device includes first and second alternately stacked frictional power transmitting members and a clutch pressure member for axially bringing the frictional power transmitting members into pressure contact. The clutch device includes an oil supply portion adjacent to a distal end of power transmission shaft. The clutch device has an oil supply structure including a clutch lifter member with a flange portion axially facing the distal end of power transmission shaft, to axially shift the clutch pressure member to release the pressure contact of the frictional power transmitting members. The flange portion has a bowl-shaped portion extending axially to surround the one end portion of the power transmission shaft. The bowl-shaped portion including the flange portion functions to guide oil axially inward along the power transmission shaft and serves to provide an improved oil supply effect to the frictional power transmitting members.

Abstract: To wirelessly transmit, from intrinsically-safe type equipment placed in a hazardous area, a loop electrical signal measurement value obtained from flameproof type equipment. A flameproof input intrinsically-safe output transmitter covered with a flameproof enclosure includes an intrinsically-safe-side terminal connected to an intrinsically-safe built-in battery type wireless device, a flameproof-side electrical signal terminal configured to input a loop electrical signal, and an electrical input signal transmitter circuit configured to measure the loop electrical signal and transmit a signal in accordance with a measurement result to the intrinsically-safe-side terminal.

Abstract: A capacitor-type power supply unit including: a positive bus to which a plurality of capacitor is connected in parallel at each positive-electrode terminal thereof with maintaining equal intervals therebetween, and extends in a parallel direction; and an negative bus to which the plurality of capacitor is connected in parallel, at each negative-electrode terminal thereof with maintaining equal intervals therebetween, and extends in the parallel direction, in which the positive bus has a positive-electrode-side external connection part that is set at a position (SD) separated from the positive-electrode first end by a range of 20% to 30% of the total length in the longitudinal direction thereof, and the negative bus has an negative-electrode-side external connection part that is set at a position (SD) separated from the negative-electrode second end by a range of 20% to 30% of the total length in the longitudinal direction thereof.

Abstract: A motor control device includes a processor configured to receive a first signal and a second signal, and determine a second command value, based on a first value of a first signal in which a characteristic of a waveform based on a first command value is present and a second value of a second signal representing data of the first command value, and a motor control unit configured to control a motor based on the second command value.

Abstract: A valve opening and closing system includes: a site/center switching manual valve; a manual valve for opening and closing operation; an opening/closing switching electric driving valve that opens and closes a manual valve and that nullifies the manual valve for opening and closing operation; a center wireless transmitter that accepts and transmits an operation instruction including an opening and closing operation instruction and a forced closing operation instruction; and a site wireless transmitter, and a contact signal converter, the site side valve control device transmits both of the opening and closing operation instruction and the forced closing operation instruction to the contact signal converter when the site/center switching manual valve is switched to the center control side, and interrupts the opening and closing operation instruction and transmits the forced closing operation instruction to the contact signal converter when the site/center switching manual valve is switched to on site.

Abstract: A device capable of improving quality of welding by improving estimation precision of coating removal completion of a conductor which is an ultrasonic welding target is provided. An ultrasonic vibration energy (E) of a horn (11) is adjusted based on magnitude of a displacement amount (a reference displacement amount (?Z)) of the horn (11) during at least a partial period of a period from a state in which an FFC and a PCB are interposed by the horn (11) and an anvil (12), through a “first stable state” in which a displacement speed (v) of the horn (11) is stable in a first speed zone in a course in which the displacement speed (v) of the horn (11) increases, until a “second stable state” in which the displacement speed (v) is stable in a second speed zone of a higher speed zone than the first speed zone.

Abstract: A device capable of improving estimation precision of coating removal completion of a conductor which is an ultrasonic welding target is provided. A displacement speed v of the horn (11) is chronologically measured. A progress situation of the melting and removal of an insulating coating C0 (a synthetic resin included in the insulating coating C0) between both conductors C1 and C2 which are welding targets is estimated based on a transition form from a “first stable state” in which the displacement speed v is stable in a first speed zone to a “second stable state” in which the displacement speed v is stable in a second speed zone of a higher speed zone than the first speed zone in a course in which the displacement speed v of the horn (11) increases.

Abstract: A resistance welding method according to the present invention includes a current control step of sequentially performing a first control for maintaining a welding current being a direct current at a current value I1 (first target value) or in the vicinity of the current value I1, a second control for raising the welding current from the current value I1 to a current value I2 (second target value, I2>I1) and for subsequently maintaining the welding current at the current value I2 or in the vicinity of the current value I2, and a third control for lowering the welding current from the current value I2 to a value smaller than the current value I1, and the resistance welding method further comprises an energization step of applying the welding current while repeating the current control step plural times until a predetermined energization period of time elapses.

Abstract: There is provided a computer-readable non-transitory recording medium storing a program that causes a computer to execute a procedure that outputs results of a plurality of tests performed on source code, the procedure includes acquiring prior-to-change source code and after-change source code, comparing the acquired prior-to-change source code and after-change source code, identifying changed processing content indicating processing content that has changed between the prior-to-change source code and the after-change source code based on results of comparing, and outputting, in association with the plurality of tests, information indicating test results for the prior-to-change source code, test results for the after-change source code, and changed processing content executed by the plurality of tests for the after-change source code out of the identified changed processing content.

Abstract: A motor drive control device includes a main controller that generates a PWM control signal for instructing a rotational speed of a motor. The motor drive control device includes a signal switch that converts the PWM control signal supplied from the main controller into differential data, and outputs the differential data to two transmission lines. An electric speed controller is connected to the two transmission lines, and receives the differential data and responds to the differential data to supply a drive signal to the motor.

Abstract: An interface module according to one aspect of the invention includes an interface and a local communication device. The interface, which is connected to a field device, receives a first wireless signal from the field device. The local communication device wirelessly transmits the first signal to a wireless module by first local communications. The local communication device receives, from the wireless module by second local communications, a second signal destined for the field device that is wirelessly transmitted from an external device and wirelessly received by the wireless device. The interface device outputs the second signal to the field device.