Abstract: An automatic transmission (1) includes a first planetary gear set (PL1) of a double pinion type, second to fourth planetary gear sets (PL2-PL4) of a single pinion type, first to third clutches (CL1-CL3), and first and second brakes (B1 and B2). A third carrier (C3) and a fourth sun gear (S4) are always coupled to an input (i.e., an input shaft (3)). An output (i.e., an output gear (7)) is always coupled to a fourth ring gear (R4). A first carrier (C1) is always coupled to a third sun gear (S3). A second sun gear (S2) is always coupled to a third ring gear (R3). A first ring gear (R1) is always coupled to a second ring gear (R2).

Abstract: Disclosed is an automatic transmission (10) in which, of four planetary gear sets (PG1, PG2, PG3, and PG4), two planetary gear sets (PG2, PG3) are arranged such that one of the two planetary gear sets (PG2, PG3) is disposed radially inward from the other to form a two-stage planetary gear set (PGt). One planetary gear set (PG1) of the other two planetary gear sets functions as a specified planetary gear set disposed adjacent to the two-stage planetary gear set in a transmission axial direction. A carrier (C3) of the radially outer planetary gear set (PG3) of the two-stage planetary gear set, a carrier (C1) of the specified planetary gear set, and an output section (an output gear (13)) are always engaged together.

Abstract: An automatic transmission (1) includes, in a transmission case (2), an input shaft (3), first to third planetary gear sets (PL1-PL3) of a single pinion type, a fourth planetary gear set (PL4) of a double pinion type, five frictional engagement elements (CL1, CL2, and B1-B3), and outputs (7, 8). The outputs (7, 8) are always engaged with a fourth ring gear (R4).

Abstract: Provided is a method for producing a lithium secondary cell with which the concentrated precipitation of metal impurities at the negative electrode is inhibited and short circuiting is unlikely to occur. The production method includes, assembling together the positive electrode, the separator, and the negative electrode, and then impregnating the assembly with the nonaqueous electrolyte; charging the assembly within 1 min so that a maximum achieved potential of the positive electrode becomes 3.2 V or more with respect to the redox potential of lithium; allowing the assembly to stand for 10 min or less after the charging has ended; and discharging the assembly within 1 min after the standing step.

Abstract: An automatic transmission includes: an input shaft connected to a driving source; an output shaft provided coaxially with the input shaft and connected to a differential mechanism; double pinion type first and second planetary gear sets; single pinion type third and fourth planetary gear sets; first to third clutches each configured to connect and disconnect predetermined rotational elements of the planetary gear sets to and from each other; and first and second brakes configured to connect and disconnect a predetermined rotational element of the planetary gear set to and from a transmission case. When the first to third clutches are engaged, and the first and second brakes are released, an eighth gear stage whose reduction ratio is 1 is formed.

Abstract: An automatic transmission (10) includes an input shaft (12), an output (an output shaft 13) arranged coaxially with the input shaft and engaged with a differential mechanism, first and second planetary gear sets (PG1 and PG2) of a double pinion type, third and fourth planetary gear sets (PG3 and PG4) of a single pinion type, first to third clutches (CL1-CL3) engaging and disengaging predetermined rotating elements of the first to fourth planetary gear sets, and first and second brakes (BR1 and BR2) engaging and disengaging a second carrier (C2) and a first carrier (C1) from a transmission case (11). A gear ratio of the automatic transmission is 1 in a sixth gear.

Abstract: An automatic transmission (10) includes in a transmission case (11), an input (an input shaft 12), an output (an output shaft 13), first to fourth planetary gear sets (PG1, PG2, PG3, and PG4) of a single pinion type, first to third clutches (CL1-CL3) engaging and disengaging predetermined rotating elements of the first to fourth planetary gear sets, a first brake (BR1) engaging and disengaging a third ring gear (R3) with and from the transmission case, and a second brake (BR2) engaging and disengaging a first sun gear (S1) and a fourth sun gear (S4) with and from the transmission case. The input, the output, the planetary gear sets, the clutches, and the brakes are arranged coaxially with each other. The first, second, third, and fourth planetary gear sets are arranged in this order from one axial end to the other axial end of the automatic transmission.

Abstract: Provided is a method for manufacturing a lithium secondary battery which is capable of preventing a local deposition of a metallic foreign substance at a negative electrode regardless of the type of a positive electrode and in which a short-circuit is less likely to occur. The present manufacturing method comprises: a step of assembling a cell that includes a positive electrode, a negative electrode, and a nonaqueous electrolyte; a micro charging step of performing a micro charge on the assembled cell before performing an initial conditioning charge until a positive electrode potential with respect to a metal lithium (Li) reference electrode exceeds an Me dissolution potential set in advance at which a mixing-anticipated metal species (Me) starts to dissolve; and an Me dissolution potential holding step of holding the positive electrode potential of the cell at or above the Me dissolution potential for a prescribed period of time after the micro charge.

Abstract: A communication system 100 has a communication path configured by connecting a starting-point device to an end-point device so as to be capable of communicating via at least one relay-point device. The communication system 1000 includes: a communication path determined band acquiring part 1001 that, for each of sections between communication devices adjacent to each other in the communication path, acquires a section available band, and acquires the smallest value between the section available band and a communication path request band that is a communication band requested for the communication path, as a communication path determined band; a band reserving part 1002 that reserves the acquired communication path determined band in the communication path; and a communication traffic controller 1003 that transmits communication traffic satisfying a traffic flow condition so that the communication traffic passes through the communication path where the communication path is reserved.

Abstract: To simplify the hydraulic pressure supply passage to each clutch, an multistage automatic transmission comprises an input part and output part, three clutches, two brakes, and four planetary gear sets, where the first and fourth sets are of a single pinion type and the second and third of a double pinion type. The input and output parts and the planetary gear sets connect to each other and the clutches and brakes decouple components in such a way that enlargement as a whole of the transmission and the deterioration of the responsiveness of the shift control are controlled.

Abstract: A hydraulic control circuit includes: a shift valve configured to be switched between a state of supplying oil pressure to a clearance adjusting chamber of an LR brake and a state of discharging the oil pressure from the clearance adjusting chamber of the LR brake; and a linear SV configured to control the oil pressure supplied to a pressing chamber of the LR brake. The hydraulic control circuit further includes a source pressure oil passage through which oil pressure equal to the oil pressure supplied from the shift valve to the clearance adjusting chamber is supplied to a source pressure port a of the linear SV. By discharging the oil pressure in the clearance adjusting chamber at the time of opening malfunction of the linear SV, the oil pressure in the pressing chamber is also discharged through a drain port of the shift valve.

Abstract: A hydraulic control device of an automatic transmission configured such that: a first gear stage is formed by engagement of an LR brake and a low clutch; a third gear stage by engagement of the low clutch and an R35 brake; and a reverse gear stage by engagement of the LR brake and the R35 brake. The hydraulic control device includes a cut valve configured to be switched between a first state where a source pressure port of a third linear solenoid valve (SV) configured to control an oil pressure supplied to the R35 brake is connected to an oil pressure source and a second state where the pressure is discharged from the port. The cut valve becomes the second state when the third gear stage is shifted to the first gear stage, and the oil pressure supplied to the low clutch is less than a predetermined oil pressure.

Abstract: A control method for an automatic transmission in which a starting gear shift stage is attained by fastening a predetermined brake element and a predetermined clutch element includes a step of supplying, when a command, which is for fastening the predetermined brake element and the predetermined clutch element that is to be fastened to input output rotation on an engine side to a transmission mechanism, and which is also for attaining the starting gear shift stage is detected, hydraulic pressure to the clutch element and then fastening the clutch element, and a step of supplying, after the step, the hydraulic pressure to the brake element to start the fastening of the brake element and controlling rotation, which is input to the transmission mechanism, to a target number of rotations. It is possible to satisfactorily attain the starting gear shift stage without a shock while dispensing with a one-way clutch.

Abstract: A first piston (65) that presses friction plates (69a, 69c) is fitted in a second piston (66) in such a manner as to be movable together with the second piston and relatively movable with respect to the second piston. An A-chamber (61) and a B-chamber (62) each configured to move a respective one of the first piston (65) and the second piston (66) by a stroke toward a side close to the friction plates, a return spring (161) biasing the second piston (66) on a side away from the friction plates, and a stopper member (160) configured to prevent a stroke of the second piston (66) toward the side close to the friction plates from becoming greater than a given value (W) are provided. Engagement responsiveness of a L-R brake (60) does not deteriorate even when a clearance (V) in the friction plates (69a, 69c) increases.

Abstract: An automatic transmission (10) includes in a transmission case (11), an input (an input shaft 12), an output (an output shaft 13), first to fourth planetary gear sets (PG1, PG2, PG3, and PG4) of a single pinion type, first to third clutches (CL1-CL3) engaging and disengaging predetermined rotating elements of the first to fourth planetary gear sets, a first brake (BR1) engaging and disengaging a third ring gear (R3) with and from the transmission case, and a second brake (BR2) engaging and disengaging a first sun gear (S1) and a fourth sun gear (S4) with and from the transmission case. The input, the output, the planetary gear sets, the clutches, and the brakes are arranged coaxially with each other. The first, second, third, and fourth planetary gear sets are arranged in this order from one axial end to the other axial end of the automatic transmission.

Abstract: An automatic transmission (10) includes an input shaft (12), an output (an output shaft 13) arranged coaxially with the input shaft and engaged with a differential mechanism, first and second planetary gear sets (PG1 and PG2) of a double pinion type, third and fourth planetary gear sets (PG3 and PG4) of a single pinion type, first to third clutches (CL1-CL3) engaging and disengaging predetermined rotating elements of the first to fourth planetary gear sets, and first and second brakes (BR1 and BR2) engaging and disengaging a second carrier (C2) and a first carrier (C1) from a transmission case (11). A gear ratio of the automatic transmission is 1 in a sixth gear.

Abstract: An automatic transmission includes a first frictional engagement element (a low clutch 40), a second frictional engagement element (an L/R brake 60), two hydraulic chambers (a gap adjustment chamber 64 and a pressure chamber 65) provided in the second frictional engagement element, a first hydraulic pressure generator 101 (an electric pump 101) generating a hydraulic pressure during an automatic stop of the engine, and a control unit (a control unit 200) controlling the hydraulic pressure in the first and second frictional engagement elements. The control unit supplies the hydraulic pressure generated by the first hydraulic pressure generator to the first frictional engagement element and one of the two hydraulic chambers of the second frictional engagement element when the automatic transmission is in the non-traveling range and the engine has been automatically stopped.

Abstract: A brake device of a transmission is provided. The brake device includes a friction plate set including fixed friction plates and rotatable friction plates alternately disposed with each other, an engaging piston, and a clearance adjusting piston. A clearance adjusting hydraulic chamber is formed on a side of the clearance adjusting piston opposite to the friction plate set, and a concave portion is formed in a surface of the clearance adjusting piston on a friction plate set side. A base part of the engaging piston on a side opposite to the friction plate set is slidably fitted into the concave portion of the clearance adjusting piston and an engaging hydraulic chamber is formed by the base part and the concave part.

Abstract: In a transmission network of a multi-hop connection in which a transmission bandwidth between relay stations changes, it is possible to prevent congestion from occurring due to a change in the transmission bandwidth between the relay stations. A transmission device connected to a network constituted of a plurality of relay stations includes a transmission section configured to transmit a signal to the network, and a bandwidth control section configured to control a transmission bandwidth of the transmission section based on a lowest transmission bandwidth among transmission bandwidths between the relay stations.

Abstract: An automatic transmission is provided. The transmission includes clutches coaxially arranged in layers in a radial direction of the transmission. The transmission includes a piston provided to each clutch, the pistons being aligned in the radial direction on a same plane perpendicular to an axis of the transmission, without overlapping with each other in an axial view. The transmission includes a common rotational member having a wall, commonly used for the clutches, and disposed at a predetermined position of the transmission in an axial direction, wherein the wall is formed along the plane. The transmission includes operational hydraulic passages parallely arranged in the wall of the common rotational member in a circumferential direction of the transmission on the same plane perpendicular to the axis, each of the operational hydraulic passages communicating with one of operational hydraulic chambers of the respective clutches.