Abstract: A vehicle object detection system for detecting a target object in a detection area located behind and/or lateral of a subject vehicle, that is configured to generate a judgement on whether a target object which has been detected in the detection area is an alert object, to output the judgement to warning means which is configured to output a warning to a driver of the subject vehicle based on the judgement indicating that the target object is an alert object, and to generate the judgement based on: one or more positions of one or more other objects other than the target object being detected to be located between the target object and the subject vehicle, and a time period during which the target object is detected, being smaller than a specified period of time.

Abstract: A vehicle object detection system configured to generate a judgement on whether a target object which has been detected to enter the detection area is an alert object, and to output the judgement to a warning which is configured to warn a driver of the subject vehicle that a target object is present in the detection area behind the subject vehicle based on the judgement indicating that the target object is an alert object, wherein the system is configured to delay generating the judgement until a specified period of time has elapsed from a point in time when the target object entered the detection area from an adjacent area located lateral to the detection area and/or is configured to generate the judgement based on a change in distance between the target object and the subject vehicle during said specified period of time.

Abstract: A vehicle object detection system configured to generate a judgement on whether a target object which has been detected in the detection area is an alert object, and to output the judgement to a warning which is configured to output a warning to a driver of the subject vehicle based on the judgement indicating that the target object is an alert object, wherein system is configured to generate the judgement based on at least one of a comparison of a difference between a relative speed of the target object with respect to the subject vehicle and an absolute speed of the target object in a transverse direction of the subject vehicle with a specified range, and a comparison of an estimated arrival position of the target object, which is a position the target object is estimated to reach in the detection area in a specific period of time.

Abstract: An arithmetic processing device for resolver signal including: an A/D converter for converting a rotation detection signal of a rotation detection sensor supplied from the outside into a digital signal; and a logic unit constituting a logic circuit that calculates the angle of the script detection sensor from the digital signal output from the A/D converter, wherein the amplifier, the A/D converter, and the logic unit are mounted in the same chip or in the same package.

Abstract: An initial variation learning control is executed when a learning condition is satisfied each time the learning condition is satisfied, with the aim of absorbing initial variations of manufacturing errors or variations of components of a second clutch (CL2). When the number of times of learning control is counted and this becomes a predetermined number (e.g. five times), after that, a deterioration variation learning control, which is equivalent to the initial variation learning control, is executed only once a trip from ON of a key switch to OFF of the key switch. With this, a frequency of execution of the learning control can be reduced, and the number of times of the learning can be reduced. It is therefore possible to suppress energy consumption and improve energy efficiency in stand-by pressure learning control of the second clutch that serves as a starter clutch.

Abstract: An initial variation learning control is executed when a learning condition is satisfied each time the learning condition is satisfied, with the aim of absorbing initial variations of manufacturing errors or variations of components of a second clutch (CL2). When the number of times of learning control is counted and this becomes a predetermined number (e.g. five times), after that, a deterioration variation learning control, which is equivalent to the initial variation learning control, is executed only once a trip from ON of a key switch to OFF of the key switch. With this, a frequency of execution of the learning control can be reduced, and the number of times of the learning can be reduced. It is therefore possible to suppress energy consumption and improve energy efficiency in stand-by pressure learning control of the second clutch that serves as a starter clutch.

Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for changing the clutch from an engaged state to a disengaged state based the hydraulic fluid pressure acting on the clutch during the stopping of the rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch from an engaged state to a disengaged state, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.

Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for the clutch based on initially rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch to a designated pressure that is no greater than the clutch engagement hydraulic pressure, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.

Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for changing the clutch from an engaged state to a disengaged state based the hydraulic fluid pressure acting on the clutch during the stopping of the rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch from an engaged state to a disengaged state, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.

Abstract: A lattice strain(s) due to lattice mismatch can be effectively utilized and it is further designed for the reduction of leakage current and the improvement of fatigue characteristic. Substantially one layer of {X3}O corresponding to one atomic layer of {X3}O is inserted at suitable intervals while epitaxially growing perovskite oxides or {X1}{X2}O3 layers 12 on a substrate which is similar in crystallographic structure to a desired thin film. {X1} and {X3} are each Ca or the like, {X2} is Ti or the like and ┌O┘ is oxygen. While the {X3}O layer(s) 14 is introduced so as to divide the perovskite structure of the {X1}{X2}O3 layers 12, it is present in a condition exhibiting an extremely high structural matching with the perovskite structure thereby forming a layered perovskite structure.

Abstract: A lattice strain(s) due to lattice mismatch can be effectively utilized and it is further designed for the reduction of leakage current and the improvement of fatigue characteristic.

Abstract: This invention provides a self-lubricating composite material which has excellent strength and oxidation resistnce at a high temperature and can be used in air and in vacuum, and a production method thereof, the composite material is a Cu--Ni--Sn type composite sintered body containing 20 to 70 vol % of mixed particles of graphite and WS.sub.2 as the solid lubricant components and having a porosity of not greater than 25 vol %, and a matrix is a two-phase alloy comprising Cu--Ni alloy particles and an Sn single phase or an Sn--Ni intermetallic compound dispersed uniformly in the grain boundary of the alloy particles and firmly bonding them, and this matrix encompasses the solid lubricant particles. The matrix consists of 5 to 40 wt % of Ni, 4 to 15 wt % of Sn and the balance of Cu and unavoidable impurities as the alloy composition.

Abstract: In order to evaluate the mechanical properties of steel, empirical equations showing the relationship between each of the tensile strength, yield point and elongation of steel and its hardness, grain size and chemical composition are determined in advance based on experimental results. Then, the hardness, grain size and chemical composition of the steel to be evaluated are determined. The tensile strength, yield point and elongation of the steel to be evaluated are determined by inserting the determined hardness, grain size and chemical composition in the empirical equations. In determining the energy absorbed according to a method of this invention, empirical equations showing the relationship between each of the shelf energy, transition temperature and temperature range of the energy transition region of steel and its hardness, grain size and chemical composition are determined in advance. Then, the hardness, grain size and chemical composition of the steel to be evaluated are determined.

Abstract: The grain size is expressed by the diameter of grains demarcated at high-angle grain boundaries, such as ferrite grains in ferritic steels. Ultrasonic waves having a frequency f are propagated through an object to be examined and its attenuation constant .alpha. is determined. Using the ratio f/.alpha. and equationC'.sub.j .ltoreq.f/.alpha..ltoreq.C'.sub.j+lwhere C'.sub.j and C'.sub.j+l are constants and j is a constant between 1 and 4, the order j of the region to which the value of f/.alpha. belongs is determined. Then the grain diameter D is derived from equation ##EQU1## using an integer n.sub.j and constant A.sub.j predetermined for the order j of each region.