摘要:
An automatic transmission includes: a frictional engagement element arranged to be switched from an engagement state to a disengagement state at a switching from a running range to a neutral range, and including: frictional plates; a first piston arranged to push the frictional plates; a second piston arranged to push the frictional plates; a first hydraulic chamber arranged to receive a hydraulic fluid for pushing the first piston; and a second hydraulic chamber arranged to receive a hydraulic fluid for pushing the second piston; a first discharge speed switching section arranged to switch only a discharge speed of the hydraulic fluid of the first hydraulic chamber; and a control unit configured to increase the discharge speed of the hydraulic fluid of the first hydraulic chamber during a predetermined time period by the first discharge speed switching section at the switching from the running range to the neutral range.
摘要:
There is provided a hydraulic control device for controlling a hydraulic pressure supplied to a vehicle start-up engagement element in an automatic transmission when a shift lever is moved from a non-drive range position to a drive range position. The hydraulic control device has a target pressure setting section that sets, based on an input torque of the automatic transmission, a target value of hydraulic pressure supplied to the vehicle start-up engagement element at the completion of engagement of the vehicle start-up engagement element and corrects the target value periodically based on the transmission input torque until the completion of engagement of the vehicle start-up engagement element and a hydraulic pressure control section that controls the hydraulic pressure in such a manner that the hydraulic pressure supplied to the vehicle start-up engagement element reaches the corrected target value at the completion of engagement of the vehicle start-up engagement element.
摘要:
An air intake device includes a cooler and a surge tank accommodating the cooler. The air intake device is to be connected to a cylinder head of an engine. The cylinder head includes an intake port that accommodates an intake valve. The cooler has a refrigerant passage through which refrigerant flows and an air passage through which intake air flows. The surge tank has a connector connected to the cylinder head. The cooler has a protrusion protruding from the connector toward the intake valve.
摘要:
A method of manufacturing a wire harness is provided. A portion of a wire is mounted on a first holder such that the portion of the wire is disposed between a thermoplastic material and another thermoplastic material, the thermoplastic material and the other thermoplastic material, that are mounted on the first holder, are pressed by heater-equipped the lower mold and the upper mold, thereby press-forming and heating the thermoplastic material and the other thermoplastic material, so that the portion of the wire is covered around with the thermoplastic material and the other thermoplastic material and that mutually contacting surfaces of the thermoplastic material and the other thermoplastic material are welded, and thereafter, the portion of the wire that is covered the thermoplastic material and the other thermoplastic material is removed from the lower mold and the upper mold while being mounted on an upper side of the first holder.
摘要:
An inkjet print head for which an ink flow path formation member, arranged on a printing element board, is prevented from being peeled off or being damaged, and the printing element board in an appropriate state can be mounted on a support member. According to the present invention, an ink flow path formation member is arranged on one face of a printing element board, and a peripheral area extending outward from the ink flow path formation member is prepared. Since pressure is applied to the peripheral area using a mounting tool, to bond the first terminals of the printing element board to the electrode terminals of the support member, damage to the ink flow path formation member, caused by the mounting tool, can be prevented.
摘要:
During a cleaning operation, the following steps are executed. The steps includes a first step of pressurizing ink in a supply path to overflow the ink from a nozzle, a second step of stopping the pressurization, a third step of executing wiping while the pressurization is stopped and a negative pressure is not applied, and a fourth step of applying a negative pressure to the ink at the nozzle to generate a meniscus.
摘要:
A wireless communications device for performing wireless communications includes a notifying unit for notifying a user of a status of the corresponding wireless communications device when a dedicated user interface is manipulated, a display unit and a detector for detecting failure in the display unit. The notifying unit notifies the user of the status of the corresponding wireless communications device when a failure in the display unit is detected by the detector and prevents the status of the corresponding wireless communications device from being notified when the failure in the display unit is not detected by the detector.
摘要:
In gear shift control apparatus and method for an automatic transmission, a first frictional engagement element is, in turn, released, a second frictional engagement element is, in turn, engaged to perform the gear shift to another gear stage, a command hydraulic pressure to the second frictional engagement element is temporarily reduced when a parameter indicating a degree of progress of the gear shift detected during the gear shift to the other gear stage has reached to a predetermined value representing an inertia phase finish immediate prior region at a time of an inertia phase developed during a replacement gear shift, an reduction quantity of the command hydraulic pressure is set whenever a predetermined time has elapsed on a basis of the parameter detected whenever the predetermined time has elapsed in the inertia phase finish immediate prior region to progressively reduce the command hydraulic pressure.
摘要:
A valve timing adjusting apparatus includes a housing, a vane supporting portion, a vane member, a limiting member, a fitting hole, and an atmosphere communication hole. The housing is rotatable about a rotation axis. The housing includes a peripheral wall and side walls to define a receiving chamber. The vane member is received integrally with the vane supporting portion in the receiving chamber. The vane member defines an axial hole therein. The limiting member is reciprocably received in the axial hole. The fitting hole and the atmosphere communication hole are provided to one of the side walls. The fitting hole is communicated with atmosphere via the communication hole. The limiting member limits the vane member from rotating relative to the housing when one end of the limiting member is fitted with the fitting hole.
摘要:
An upshift control system for use in an automatic transmission including first and second friction elements, the upshift control system including a control unit that determines variation in an engagement capacity of the first friction element or an engagement capacity of the second friction element on the basis of combination of occurrence or non-occurrence of engine racing and compared lengths between a first time that elapses from output of a shift command to a start of an inertia phase and a second time that elapses from the out output of a shift command to a start of change in an actual gear ratio toward a target gear ratio to be achieved after the shifting, and performs a learning correction of a command pressure for the first friction element or a command pressure for the second friction element on the basis of the determination result.