摘要:
A control device controls a transmission mechanism which includes a first clutch to be engaged at startup and a second clutch, and is interlocked when hydraulic pressure is supplied to the first and second clutches and when the first and second clutches are completely engaged. The control device includes a hydraulic pressure control unit controlling hydraulic pressure supplied to the transmission mechanism so that the first clutch is set in a completely engaged state and the second clutch is set in a slip interlock state where the second clutch is not completely engaged in the case of a return from an idle stop control in which an engine is automatically stopped. The hydraulic pressure control unit starts reducing hydraulic pressure supplied to the second clutch when an increased amount of an engine rotation speed per unit time becomes smaller than a predetermined value.
摘要:
A lock-up clutch control device controls a lock-up clutch provided in a torque converter mounted between an engine and a transmission of a vehicle. The lock-up clutch control device switches between a converter state and a lock-up state by controlling a differential pressure supplied to the lock-up clutch. The lock-up clutch control device has a controller and a differential pressure generator for generating the differential pressure in response to a differential pressure command value. The controller calculates a first differential pressure command value which decreases at a predetermined rate, after the vehicle speed becomes a first predetermined speed; sets the differential pressure command value to a second differential pressure command value, before the vehicle speed becomes a second predetermined speed; and sets the differential pressure command value to a value at which the lock-up clutch is immediately released, when the vehicle speed becomes the second predetermined speed.
摘要:
A lock-up clutch control device which controls a lock-up clutch (6) provided in a torque converter (5) interposed between an engine (3) and a transmission (4) used with a vehicle, is disclosed. The lock-up clutch control device has a differential pressure generating device (7,8), a vehicle speed sensor (13), a throttle valve opening sensor (14), an transmission input shaft rotation speed sensor (16), engine torque detection means (2), and a controller (1). The controller (1) determines, based on the detected vehicle speed (VSP) and the detected throttle valve opening (TVO), whether or not a control region of a torque converter is a converter region wherein control is performed to disengage the lock-up clutch. When the control region of the torque converter is not the converter region, the controller (1) determines whether or not the control region of the torque converter is a slip control region wherein control is performed to make the lock-up clutch slip, based on the detected input shaft rotation speed (Npri) of the transmission and the detected engine torque (Te). When the control region of the torque converter is the slip control region, the controller commands the differential pressure generating device (7,8) to cause a slip of the lock-up clutch (6).
摘要:
A Stirling refrigerator, which prevents oil rising, makes oil seal bellows have long-life, and includes a housing, cylinder, piston, piston rod and an oil seal bellows. The oil seal bellows seals a space between the housing and the cylinder, wherein a tip end of the oil seal bellows is sealed and fixed on the piston or on the piston rod inside the cylinder, and a base end of the oil seal bellows is installed on the housing. The oil seal bellows reciprocates with a stroke, wherein the tip end of the oil seal bellows is compressed to a compression side from a position of free length then returns to the position of free length.
摘要:
There is disclosed a Stirling cycle refrigerator in which oil rising is prevented, and an adverse influence onto oil sealing bellows by a pressure rise accompanying the temperature rise of the crank chamber is prevented. The oil sealing bellows are disposed between a space in a housing and compression and expansion cylinders, and a buffer tank provided with the pressure adjusting bellows is disposed between a space on the back surface side of the compression and expansion pistons and the space in the housing, so that the pressure rise in the housing and the pressure fluctuation of the space are absorbed.
摘要:
A clock pulse generator has a first clock pulse generator for generating a burst lock clock pulse signal synchronized with a color burst signal contained in a video signal; a second clock pulse generator for generating a line lock clock pulse signal synchronized with a horizontal synchronizing signal contained in the video signal; a detection circuit for detecting whether or not the video signal is a standard signal; and a phase control circuit for synchronizing the phase of the line lock clock pulse signal with the phase of the burst lock clock pulse signal when the detection circuit determines that the video signal is a standard signal. The line lock clock pulse signal is supplied to a synchronizing signal generator, a selected one of the burst lock clock pulse signal and the line lock clock pulse signal is supplied to a signal processing circuit when the detection circuit determines that the video signal is a standard signal, and the line lock clock pulse signal is supplied to the signal processing circuit when the detection circuit determines that the video signal is a non-standard signal.
摘要:
High molecular weight water-soluble acrylamide polymers can be produced in good yield by irradiating a solution comprising acetone, water and acrylamide with an ionizing radiation in the presence of an alkaline salt.
摘要:
Provided is a paper machine contamination preventive agent that has high fixability to rolls and the like of a paper machine, that positively finds a silicone oil capable of imparting releaseability and water-repellent properties to the rolls or the like immediately upon being supplied to the rolls or the like, and that uses the silicone oil as a main component. Further provided is a paper machine contamination preventive agent using a silicone oil that permits transfer of less foreign matters from a wet paper web than that in a case where a contamination preventive agent containing a dimethylpolysiloxane base oil is a main component. The paper machine contamination preventive agent is fed to a paper machine and has a sidechain-type modified silicone oil or a sidechain both-termini modification silicone oil as a main component.
摘要:
A lock-up clutch control device which controls a lock-up clutch provided in a torque converter installed between an engine and a transmission, is disclosed. The lock-up clutch control device changes over between a converter state and a lock-up state of the torque converter according to a differential pressure command value (LUprs) relating to a differential pressure supplied to the lock-up clutch. The lock-up clutch control device includes a differential pressure generating device (7, 8) which generates the differential pressure supplied to the lock-up clutch; input torque detection means (2, 14, 15) which detects an input torque (Te) to the torque converter; and a controller (1). The controller (1) is programmed to compute a real differential pressure (P_lu) based on the detected input torque (Te) upon completion of the engagement of the lock-up clutch; compute a learning value (P_learn(Tai)) relating to a differential pressure deviation, based on the difference between the computed real differential pressure (P_lu) and differential pressure command value (P_ref) upon completion of the engagement of the lock-up clutch, and store the learning value (P_learn(Tai)); correct a present differential pressure command value (LUprs_slp) based on the learning value (P_learn(Tai)); and send the corrected differential pressure command value (LUprs) to the differential pressure generating device (7, 8).
摘要:
A controller (5) performs open loop control of the engaging state of a lockup clutch (2) through a switching mechanism (3, 4) when a torque converter (1) transitions from a first state in which the lockup clutch (2) is disengaged to a second state in which the lockup clutch (2) is at least partially engaged. At this time, the controller (5) estimates the engine torque at the time when open loop control ends, estimates a necessary lockup capacity required for the converter (1) at the time when open loop control ends, based on the estimated engine torque, and controls the engaging state of the lockup clutch (2) through the switching mechanism (3, 4) to make the lockup capacity at the time when open loop control ends become the necessary lockup capacity.