摘要:
A hybrid vehicle system comprises an engine (1), a gearbox (4), a clutch (3) for engaging or disengaging the gearbox (4) with or from the engine (1), a rotating machine (2), a power transmission mechanism (5) for transmitting the rotation of the rotating machine (2) to the gearbox, and a capacitor (7) for storing electric power supplied from the rotating machine (2). A control unit (20) computes the drive force required by the vehicle, and determines the portion of output to be produced by the rotating machine (2) according to the stored energy in the capacitor (7) and the portion of output to be produced by the engine (1) so that the drive force requirement may be satisfied. The outputs from the rotating machine (2) and the engine (1) are controlled to obtain the determined portions of output, and a clutch (3) is then engaged.
摘要:
This system comprises an engine 1, a transmission device 4, a clutch 3 for engaging/disengaging the engine 1 with/from the transmission device 4, a rotational electric device 2, a power transmission mechanism 5 for inputting the rotation of the rotational electric device 2 to the transmission device, and an accumulator element 7 for accumulating electrical power supplied by the rotational electric device 2. A control unit 20 determines a gear change instruction for the transmission device 4, and if gear change instruction is determined, it disengages the clutch 3, and controls the rotation of the rotational electric device 2 in such a manner that the rotational speed of the input shaft of the transmission device becomes a target rotational speed required for a gear changing operation.
摘要:
The invention provides a novel method of fabricating a semiconductor integrated circuit device involving a bipolar transistor having a collector contact with side-wall oxide films. After forming an active base region, an oxide film is formed on an entire surface of the device by a vapor phase growth method. An anisotropic etching of the oxide film is accomplished by using a photo-resist pattern so that the oxide film remains both on the active base region and at opposite side portions of the collector contact. Alternatively, the oxide film remains not only on the active base region but also over and in the vicinity of the collector contact. The active base region is free from any damage such as etching and crystal defects caused by the anisotropic etching, as being covered with the remaining oxide film. A graft base region is formed by ion-implantation with using the above remaining oxide film as a mask. An edge portion of the remaining oxide film exists directly over a boundary line between the active base region and the graft base region.
摘要:
Embodiments of the present invention help provide a simple and inexpensive actuator mechanism for a magnetic disk drive. The actuator mechanism includes an approximately circular coil and a simple shaped magnet, and is capable of displaying adequate performance required for the magnetic disk drive. According to one embodiment, the magnetic disk drive includes an actuator mechanism which has an approximately circular coil and an approximately rectangular magnet. The long axis direction of the rectangular magnet is oriented in parallel to a straight line connecting the center of the inner circle of the circular coil in a state in which the actuator is positioned at the outermost circumference of a data area and the center of the inner circle of the circular coil in a state in which the actuator is positioned at the innermost circumference of the data area.
摘要:
An electric double layered capacitor is provided, which can ensure a cooling capability by radiating heat to an outside air. The electric double layered capacitor comprises a capacitor cell 1 including a bag-shaped soft case in which a plurality of positive electrodes and negative electrodes, and a separator are received and laminated together with an electrolytic solution, a belt-shaped radiating fin 5a which extends from a rim of the soft case, a heat transfer frame 15 to sandwich the radiating fin 5a, and a metal hard case 21 for thermal radiation in which a plurality of the capacitor cells 1 are received/laminated through the heat transfer frames 15.
摘要:
An electric double layered capacitor is provided, which can ensure a cooling capability by radiating heat to an outside air. The electric double layered capacitor comprises a capacitor cell 1 including a bag-shaped soft case in which a plurality of positive electrodes and negative electrodes, and a separator are received and laminated together with an electrolytic solution, a belt-shaped radiating fin 5a which extends from a rim of the soft case, a heat transfer frame 15 to sandwich the radiating fin 5a, and a metal hard case 21 for thermal radiation in which a plurality of the capacitor cells 1 are received/laminated through the heat transfer frames 15.
摘要:
This invention allows storage electric power to be secured at a maximum by reducing variation in potential between a plurality of capacitors constituting an electric power storage device as follows. A plurality of capacitor banks are provided, in parallel, in the electric power storage device. A part of the respective capacitor banks is halted depending on the current flowing through the electric power storage device. Electric charge of the respective capacitor parallel circuits is individually discharged in the halted capacitor bank, thereby, the terminal voltage of the respective capacitor parallel circuits are equalized.
摘要:
A semiconductor flash memory device includes floating gate type field effect transistors serving as memory cells, field effect transistors for forming peripheral circuits and bipolar transistors for forming other peripheral circuits expected to drive heavy load at high speed, and both of the floating gate electrodes and the emitter electrodes and both of the control gate electrodes and the gate electrodes are patterned from a first doped polysilicon and a second doped polysilicon so as to simplify a process sequence for fabricating the semiconductor flash memory device.
摘要:
In a semiconductor device including a semiconductor substrate, an impurity doped region formed in the semiconductor substrate, an insulating layer formed on the semiconductor substrate and having an opening leading to the impurity doped region, a polycrystalline silicon layer formed on the insulating layer and the impurity doped region, and a metal silicide layer formed on the polycrystalline silicon layer, a transverse thickness of the polycrystalline silicon layer at a sidewall of the insulating layer is larger than a longitudinal thickness of the polycrystalline silicon layer at a bottom of the opening and at a surface of the insulating layer.
摘要:
A load-unload ramp structure with a cantilevered fin portion to reduce drop shock in a hard-disk drive (HDD). The load-unload ramp structure includes a first load-unload ramp, a fin, and a bracket portion. The first load-unload ramp is configured to lift a first head-slider away from a magnetic-recording disk. The fin is coupled to the first load-unload ramp and is disposed below a first parking position of the first head-slider. The fin includes a fin base portion and a first cantilevered fin portion. The first cantilevered fin portion is coupled to, and extends outward from, the fin base portion. The bracket portion is integrally attached to the first load-unload ramp, and is configured to allow affixing the load-unload ramp structure in a static position in a disk-enclosure base of the HDD. A HDD including the load-unload ramp structure and a method for providing protection from drop shock are also provided.