摘要:
The present invention relates to a vehicle speed control device for controlling a speed of a vehicle. The vehicle speed control device includes a current location error estimation section for extracting area attribute information from the map information, for producing a location error probability distribution, a target speed calculation section for receiving the target speed correction instruction, for accessing preset data that shows an acceleration or a gradient of an acceleration which allows a driver not to feel uncomfortable, and for computing target speed values at nodes over the distance in such a way that the target speed values create a continuous curve, and a speed control section for sensing a speed of a vehicle, and for controlling a driving torque of the vehicle so that the sensed speed traces the continuous curve composed of the target speed values.
摘要:
In a power switching circuit, a second commutation member has a second commutation path electrically connected in parallel to a first commutation path and a second diode provided in the second commutation path and electrically connected antiparallel to a semiconductor switching element. While the semiconductor switching element is off, the second commutation path allows a second current based on the inductive load to flow therethrough in a forward direction of the second diode within a commutation period. The second diode has a second reverse recovery time shorter than a first reverse recovery time of the first diode. A second inductance of the second commutation path is higher than a first inductance of the first commutation path.
摘要:
A method for controlling a vertical type MOSFET in a bridge circuit is provided to reduce diode power loss and improve a reverse recovery characteristic. The method includes controlling a forward voltage of a built-in diode of the vertical type MOSFET to be a first forward voltage by setting a gate voltage of the vertical MOSFET to a first gate voltage, so that the vertical type MOSFET is switched into a first off mode; and controlling the forward voltage of the built-in diode of the vertical type MOSFET to be a second forward voltage by setting the gate voltage of the vertical MOSFET to a second gate voltage, so that the vertical type MOSFET is switched into a second off mode.
摘要:
High cleanliness spring steel useful in manufacturing a spring with SiO2-based inclusions being extremely controlled and excellent in fatigue properties is provided.High cleanliness spring steel which is steel containing;C: 1.2% (means mass %, hereafter the same with respect to the component) or below (not inclusive of 0%), Si: 1.2-4%, Mn: 0.1-2.0%, Al: 0.01% or below (not inclusive of 0%), and the balance comprising iron with inevitable impurities, wherein; the total of oxide-based inclusions of 4 or above of L (the large diameter of an inclusion)/D (the short diameter of an inclusion) and 25 μm or above of D and oxide-based inclusions of less than 4 L/D and 25 μm or above of L, in the oxide-based inclusions of 25 mass % or above of oxygen concentration and 70% (means mass %, hereafter the same with respect to inclusions) or above of SiO2 content when Al2O3+MgO+CaO+SiO2+MnO=100% is presumed, out of inclusions in the steel, is 20 nos./500 g or below.
摘要:
Methods and apparatus provide for estimating leakage power as a function of delay times. Delay times and leakage power values may be measured for a test circuit of a given circuit design. A statistical sampling of the measurements may be obtained for the test circuit. The delay data and leakage power data may be correlated to express and estimate leakage power as a function of delay distribution. The test circuit may include a proposed circuit that is simulated, and the method and apparatus also may provide for: creating a schematic design of the test circuit, having, for example, defined poly gate lengths, on-chip devices, and power sources; incorporating a delay chain into the schematic design to get delay distribution data; and utilizing the schematic design, wherein the utilitzation may be a simulation.
摘要:
A method for inspecting the layout of elements included in a semiconductor device. The method includes setting paired layout inspection requirements including at least an element interval at which a paired layout is enabled, inspecting whether or not the elements that are to be inspected for paired layout satisfy the paired layout inspection requirements, setting a search area for each of the elements that are to be inspected for paired layout, and extracting figures included in the search areas of the elements that are to be inspected for paired layout and inspecting whether or not the extracted figures of the elements that are to be inspected for paired layout are congruent to each other.
摘要:
An exhaust gas purification filter for a diesel internal combustion engine. In this filter, catalyst layers are not formed at portions to which a sealant of the filter is stuck so that a substrate of the honeycomb structure is exposed, but formed at portions to which a substrate of the honeycomb structure is exposed. If the sealant is stuck to catalyst layer portions, because the catalyst layers are brittle and the surfaces thereof have asperities, the fixing strength of the sealant is reduced, so that the sealing portions becomes prone to falling-off under shocks or the like. By exposing the substrate of the honeycomb structure and sticking the sealant to the exposed portions, it is possible to enhance the fixing strength of the sealant and thereby to prevent the sealing portions from falling off.
摘要:
The present invention provides a drill comprising: a drill main body rotatable about an axis of rotation, and having a tip end with a tip flank and a shank; a chip discharge flute formed on a periphery of the drill main body, and extending from the tip end toward the shank of the drill main body; and a cutting edge formed along an intersecting ridge where a wall surface of the chip discharge flute facing in the direction of drill rotation intersects the tip flank of the drill main body, wherein the cutting edge comprises a convex cutting edge toward the periphery and a concave cutting edge smoothly extending from the convex cutting edge. When drilling work is performed with this drill, the chips are generally curled and can be smoothly discharged without being excessively abutted against the wall surface of the chip discharge flute; consequently, the chips can be smoothly discharged, and the drill main body is subjected to less frictional resistance, which leads to less wear on the drill and less driving torque for drilling. Therefore, the drill life can be preferably extended even under severe drilling conditions, such as during high speed drilling, and smooth and stable drilling can be performed.
摘要:
A path search unit (1) detects the correlation between a received signal and a desired signal; (2) based on the correlation value, selects a plurality of paths over which the desired signal arrives; (3) if the difference between the detection time of the desired signal arriving via a path selected this time and the previous-time detection signal is within an allowable range, judges that the path selected this time is identical to a path previously allocated to prescribed finger units, and (4) if a path is identical, causes despreading and delay adjustment processing of the desired signal arriving over the selected path to be executed by the same finger unit as previously. A timing control unit calculates the difference between the detection time this time, over the identical path, and a reference time, and, based on the total of the time differences over the identical path, controls the timing lead/lag.
摘要:
An LCD apparatus, when fed with images in a video format whose pixel configuration is smaller than that of the LCD screen, fills the resulting blank area with a particular color through simple and low-speed image data processing. This LCD apparatus has rewritable memories, 24-bit latch circuits that cooperate with a blue-fill circuit and a black-fill circuit to write data of a particular color to the memories at all the addresses corresponding to the LCD screen, an overwriter for overwriting the memories with input image data only at the addresses corresponding to the area of the LCD screen in which images are displayed, and a reader for reading all the data stored in the memories to feed it to an LCD module.