摘要:
In an automatic transmission control system, completion of gear-shifting is detected on the basis of both the rate of change in rotational speed of the output shaft of the torque converter and the rotational speed at which the output shaft of the torque converter is expected to rotate. That is, a rotational speed range within which the rotational speed of the output shaft of the torque converter is expected to fall upon completion of the gear-shifting is determined taking into account the rotational speed of the output shaft of the torque converter upon initiation of the gear-shifting and the gear ratio, and it is determined that the gear-shifting is completed when the rotational speed of the output shaft of the torque converter falls within the predetermined rotational speed range and the rate of change in rotational speed of the output shaft of the torque converter is reduced below a predetermined value.
摘要:
A lock-up control system for an automatic transmission including a torque converter coupled with an engine, a power transmitting gear arrangement controlled by a gear ratio control device in accordance with a shifting up or down signal, and a lock-up clutch provided for locking up the output shaft of the torque converter to the output shaft of the engine. The lock-up control system comprises lock-up operation control apparatus causing the lock-up clutch to be in its inoperative state when the gear ratio control device performs the control with the shifting up or down signal, and lock-up command device for preventing the lock-up operation control apparatus from causing the lock-up clutch to be in its inoperative state until a predetermined reductive variation in the speed of the output shaft of the torque converter arises after the shifting up signal is supplied to the gear ratio control device under the condition in which the lock-up clutch is in operation.
摘要:
A ball coupling constituting a rotation preventing mechanism (77) includes a first annular race section (59, 79) having a thrust ball transfer surface formed on one surface thereof, a second annular race section (61, 81) having a ball transfer surface formed on one surface thereof confronting the one surface of the first race section and thrust balls (67) interposed between the first and second race sections (79, 81). At least one of the first and second race sections has a cross sectional shape such that the central portion of the other surface (87) thereof confronting the one surface is a recessed groove (89). A scroll type compressor includes the rotation preventing mechanism on the back surface of a movable scroll member.
摘要:
A variable displacement mechanism of fluid displacement apparatus includes a housing having a suction chamber and a discharge chamber, a first scroll member disposed within said housing and having an end plate from which a first spiral element axially extends, and a second scroll member disposed for non-rotatable orbital movement relative to the first scroll member and having an end plate from which a second spiral element axially extends. At least one control mechanism is disposed on the end plate of the first scroll member for controlling the fluid communication between the fluid pockets and the suction chamber based on the rotational motion of the driving mechanism.
摘要:
The present invention provides a polycrystalline silicon conducting structure (e.g., a resistor) whose resistance value is controlled, and can be less variable and less dependent on temperature with respect to any resistant value, and a process of producing the same. Use is made of at least a two-layer structure including a first polycrystalline silicon layer of large crystal grain size and a second polycrystalline silicon layer of small crystal grain size, and the first polycrystalline silicon layer has a positive temperature dependence of resistance while the second polycrystalline layer has a negative temperature dependence of resistance, or vice versa. Moreover, the polycrystalline silicon layer of large grain size can be formed by high dose ion implantation and annealing, or by depositing the layers by chemical vapor deposition at different temperatures so as to form large-grain and small-grain layers.
摘要:
An automatic-transmission control system causes the automatic transmission to shift once to an intermediate gear speed and then shift to the final gear speed when a jump shifting is required. The automatic transmission control system causes the automatic transmission to directly upshift to the final gear speed without once shifting to an intermediate gear speed when a jump upshift is required while the engine load is not heavier than a predetermined value or the vehicle speed is not lower than a predetermined value.
摘要:
A vehicle automatic transmission including a torque converter having a lock up clutch. A lock up control circuit is provided and has a memory including a first lock up control line for controlling the engagement and release of the lock up clutch when the torque converter turbine speed is close to the pump impeller speed, and a second lock up control line which is drawn along a line wherein the engine output torque is substantially zero so that the lock up clutch is released at a given engine load when the turbine speed is decreased beyond the first lock up control line, or when the turbine speed is increased beyond the second lock up control line.
摘要:
The present invention provides a polycrystalline silicon conducting structure (e.g., a resistor) whose resistance value is controlled, and can be less variable and less dependent on temperature with respect to any resistant value, and a process of producing the same. Use is made of at least a two-layer structure including a first polycrystalline silicon layer of large crystal grain size and a second polycrystalline silicon layer of small crystal grain size, and the first polycrystalline silicon layer has a positive temperature dependence of resistance while the second polycrystalline silicon layer has a negative temperature dependence of resistance, or vice versa. Moreover, the polycrystalline silicon layer of large grain size can be formed by high dose ion implantation and annealing, or by depositing the layers by chemical vapor deposition at different temperatures so as to form large-grain and small-grain layers.
摘要:
The object of the present invention is to suppress the increase of the contact resistance at the interface between the metal layer and the silicon plug in the wiring structure in which a metal layer is formed on and connected to a silicon plug. For its achievement, a lower semiconductor layer (drain) of a vertical-type MISFET is connected to an intermediate metal layer via an underlying plug composed of a polycrystalline silicon film, and a trap layer composed of a silicon nitride (TiN) film is formed on a part of the surface of the intermediate metal layer so as to surround the plug. The trap layer is formed in order to prevent an undesired high-resistance oxide layer from being formed at the interface between the plug and the intermediate metal layer.
摘要:
A scroll-type compressor includes a fixed and an orbiting scroll each having an end plate and a spiral element on the end plate and interfits with each other. A first transition line at a widened-starting portion of the spiral element between an interior wall and a tip surface comprises a first upper arc connecting to an upper, interior involute wall starting point and a second upper arc connecting to an upper, exterior involute wall starting point and a straight line. A second transition line at the widened-starting portion between the interior wall and a base surface comprises a first lower arc connecting to a lower, interior involute wall starting point and a second lower arc connecting a lower, exterior involute wall starting point and a straight line.