摘要:
An apparatus capable of detecting with improved accuracy a motion vector representing an object moved on a picture plane comprises a memory section for storing an input picture signal renewed for every predetermined time interval, a spatial filter section for applying a spatial band limitation to two signal portions of the renewed picture signal stored in the memory, which signal portions corresponding to the different time intervals, and a detecting section including at least one detecting stage for detecting the motion vector in accordance with the gradient method on the basis of the two picture signals and a minute value to be added to a gradient determined from one reference picture signal represented by one of the two picture signals.
摘要:
In a semiconductor laser device (LD1), a semiconductor laser layer is formed on one face of a semiconductor substrate (1), and a p-type electrode (8) and an n-type electrode (11) are provided on the semiconductor laser layer side and the semiconductor substrate (1) side, respectively, so as to sandwich the semiconductor laser layer and the semiconductor substrate (1) therebetween. The p-type electrode (8) includes a first electrode (9) and a second electrode (10) that covers the first electrode (9).
摘要:
A drive control system for an automotive vehicle includes an engine, an automatic transmission, a torque converter, a start clutch, an oil pump, a hydraulic pressure control unit, an engine control unit, an automatic engine stop/restart control unit and a torque transmission control unit configured to calculate target start clutch engagement time and torque based on an accelerator opening of the vehicle, calculate a target engine torque based on the target clutch engagement torque and cause the hydraulic control unit and the engine control unit to control the engagement state of the start clutch and the output torque of the engine according to the target clutch engagement time and torque and the target engine torque at a restart of the engine.
摘要:
There is provided a hydraulic transmission control system for a vehicle having an automatic engine stop/restart function. The hydraulic transmission control system includes a transmission having a power transmission element, an oil pump driven in synchronism with the engine to generate an oil pressure, a pressure regulator valve that regulates the oil pressure and supplies the regulated oil pressure to the power transmission element so as to allow power transmission through the power transmission element, and a control unit that operates the pressure regulator valve to control the oil pressure supplied to the power transmission element to a higher value when the vehicle is shifted from an automatic engine stop state to an automatic engine restart state, than that when the vehicle is in a normal driving state.
摘要:
An electric torque converter mounted on a parallel hybrid vehicle employing a parallel hybrid system, using both an internal combustion engine and an electric motor for propulsion, includes an electric motor generator having a motor generator rotor and a motor generator stator coil, and a composition-and-distribution mechanism located between the engine and a transmission for combining torque produced by the engine and torque produced by the motor generator with each other and for mechanically distributing the torque produced by the engine into the motor generator and a transmission input shaft. A converter case includes a third casing member formed with a boss portion supporting a rotating member of the composition-and-distribution mechanism by a bearing, and partitioning the motor generator from the composition-and-distribution mechanism. Also provided is a rotor support including a substantially cylindrical outer support portion supporting thereon the motor generator rotor, a substantially cylindrical inner support portion whose inner periphery is fixedly connected to the rotating member, and a connection portion interconnecting the inner and outer support portions. A locknut is located on the outer periphery of the rotating member and mates with a first one of axial ends of the substantially cylindrical inner support portion, for pre-loading the bearing via the rotor support. A position sensor includes a resolver rotor located on the inner periphery of the substantially cylindrical outer support portion, and a resolver stator located on the outer periphery of the boss portion.
摘要:
There is provided a starting clutch control apparatus which is capable of controlling transmission torque of a starting clutch according to changes in accelerator operated amount without preparing a plurality of data maps of torque coefficients in advance. A clutch controller determines a clutch instruction torque based on torque coefficient, engine speed, and engine speed correction amount, and controls the engagement state of the starting clutch according to the clutch instruction torque. Therefore, it is possible to control the engagement state of the starting clutch in response to sudden operation of an accelerator, and to finely control the degree of engine blow-up according to an accelerator operated amount. Only one data map for determining the torque coefficient according to a rotational speed ratio of a clutch input shaft to a clutch output shaft is required to be stored in a data storage section, and hence it is possible to prevent an increase in the amount of data stored in the data storage section.
摘要:
There is provided a starting clutch control apparatus which is capable of controlling transmission torque of a starting clutch according to changes in accelerator operated amount without preparing a plurality of data maps of torque coefficients in advance. A clutch controller determines a clutch instruction torque based on torque coefficient, engine speed, and engine speed correction amount, and controls the engagement state of the starting clutch according to the clutch instruction torque. Therefore, it is possible to control the engagement state of the starting clutch in response to sudden operation of an accelerator, and to finely control the degree of engine blow-up according to an accelerator operated amount. Only one data map for determining the torque coefficient according to a rotational speed ratio of a clutch input shaft to a clutch output shaft is required to be stored in a data storage section, and hence it is possible to prevent an increase in the amount of data stored in the data storage section.
摘要:
In a parallel hybrid electric vehicle, when the difference in number of revolutions between an engine and a motor/generator is smaller than a predetermined value at starting of the vehicle, an ECU sets a predetermined torque correction amount in accordance with the relationship between an engine inertia and a motor/generator inertia. The ECU carries out correction of torque of one of the engine and the motor/generator in accordance with the predetermined torque correction amount as set.
摘要:
In a parallel hybrid vehicle employing a parallel hybrid system, using both an internal combustion engine and an electric motor generator for propulsion, a desired motor/generator torque is map-retrieved based on both the engine speed and throttle opening from a predetermined characteristic map in a fashion of feedforward processing. The signal indicative of the desired motor/generator torque is subjected to a low-pass filter that passes signals included in a frequency band lower than an oscillation frequency of powertrain torsional vibrations to remove the powertrain vibration frequency components. The map is preprogrammed so that the desired motor/generator torque is set at zero in a specified speed range lower than an engine idle speed. In another specified speed range from the engine idle speed to a predetermined direct-coupling engine speed that permits the motor/generator to be directly coupled with the engine, a gain of the desired motor/generator torque is set to increase with an increase in the engine speed. In a specified speed range above the predetermined direct-coupling engine speed, the motor/generator is coupled directly with the engine, so that the motor/generator torque output produced from the motor/generator is substantially identical to the engine torque output.
摘要:
In a method of manufacturing a semiconductor device, after performing ion-implantation and before forming an oxide film, a silicon substrate is disposed within a furnace to undergo a heat treatment at a temperature equal to or higher than 950° C. for a specific time period (equal to or longer than 15 minutes). When performing the heat treatment and when raising a temperature up to the heat treatment temperature, oxygen is supplied together with nitrogen gas (inert gas). A supply amount of oxygen is controlled to be equal to or less than 5% when raising the temperature up to the heat treatment temperature, and to be equal to or less than 2% when performing the heat treatment. After the heat treatment, the oxidation film is formed. As a result, crystal defects (OSFs) are prevented from being produced on the silicon substrate surface.