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    • 2. 发明专利
    • ADAPTIVE CONTROL DEVICE FOR DRIVE COMFORTABILITY OF AUTOMOBILE
    • JPS6223805A
    • 1987-01-31
    • JP16182985
    • 1985-07-24
    • HITACHI LTD
    • FURUKAWA MASAZUMI
    • B60G17/00B60G17/015B60G17/018B60W10/00B60W10/22G05B13/02
    • PURPOSE:To enhance the drive comfortability of an automobile, by automatically finding out a corresponding control rule in accordance with a correcting instruction from a terminal device when the result of control does not satisfy requirements relating to the comfortability of the passengers, so that the drive comfortability may be corrected. CONSTITUTION:A detector 40 detects environment 10 such as weather, road surface condition, etc. and the situation of a system 20 such as, the inclination of a vehicle, the speed thereof, etc. and delivers its output to a control condition comparing device 60 which compares the present detected conditions and conditions stored in a known condition memory device 80. If both kinds of conditions are coincident with each other, a fuzzy control device 150 reads out a corresponding one of rules stored in a control rule memory device 140 to calculate a control value. However, if both kinds of conditions are not coincident with each other, an evaluation device 10 evaluates the resemblance between both kinds of conditions, and a resemblance control device 130 estimates a control value in accordance with the thus evaluated resemblance and the corresponding rule read out from the memory device 140. The control rule may be optionally corrected in accordance with the operation of a correction and demand input device 210.
    • 3. 发明专利
    • ESTIMATING SYSTEM FOR TROUBLE FACTOR OF PLANT
    • JPS61245210A
    • 1986-10-31
    • JP8632985
    • 1985-04-24
    • HITACHI LTD
    • MIYAZAKI SATOSHIFURUKAWA MASAZUMIYAGI HIROYUKIMURATA FUMIOHASHIMOTO SHIGEO
    • G05B23/02
    • PURPOSE:To estimate accurately the factor of a plant trouble by using the time point when the abnormal information is detected as well as the normal information after giving a trouble factor to each device with the direct trouble influence reaction given between two devices respectively. CONSTITUTION:A plant 101 contains plural pieces of component devices 102 and a state detecting sensor 103 and delivers a state signal 104 to an abnormality detecting device 107 consisting of an abnormality detector 106. The device 107 stores previously a normal/abnormal decision reference signal to compare this signal with a detection signal 105 and delivers the result of this comparison to a trouble factor estimating device 109. The device 109 checks these comparison results for each fixed period of time and stores a time pint when an abnormal signal is produced. Thus a trouble factor is given to each device 102 together with the influence direction, the maximum/minimum influence time and the influence probability given between devices 102 respectively. Then the trouble factor is estimated from the time point when said abnormal signal is detected and the normal information and displayed on a display device 115.
    • 7. 发明专利
    • Forecasting system of range affected by trouble of plant
    • 由厂房故障影响的范围预测系统
    • JPS59139409A
    • 1984-08-10
    • JP1154683
    • 1983-01-28
    • Hitachi Ltd
    • MIYAZAKI SATOSHIFURUKAWA MASAZUMISHINTANI SADANORIMURATA FUMIOHASHIMOTO SHIGEO
    • G05B23/02
    • G05B23/0235
    • PURPOSE:To forecast a range affected by a trouble after a certain time, by modeling composite troubles and giving abnormal information and time from sensors to them and calculating and updating forecast time of influence of troubles. CONSTITUTION:A plant 101 consists of plural constituting devices 102 and sensors 103 which detect their states, and sensors 103 detect operation states of individual devices 102, for example, temperatures and output detection signals 105 to an abnormality detecting device 107. The device 107 compares a preliminarily stored reference signal with detection signals 105 and outputs signals 108 to a trouble influence range forecasting device 109 in case of abnormality and checks them at intervals of a certain time to store the time of abnormality. Devices which are within the range of the influence of troubles at a designated forecast time are attained on a basis of said time and a signal 113 of a trouble influence direction or the like from an initial data input device 112 in accordance with a forecast time designating signal 111 from an operator console 110, and numbers of these devices are displayed on a display device 115.
    • 目的:预测一段时间后受到麻烦影响的范围,通过对复合故障进行建模,从传感器给出异常信息和时间,计算和更新故障影响的预测时间。 构成:工厂101由检测其状态的多个构成装置102和传感器103组成,传感器103检测各个装置102的运行状态,例如温度和输出检测信号105到异常检测装置107.装置107比较 具有检测信号105的预先存储的参考信号,并且在异常的情况下向故障影响范围预测装置109输出信号108,并以一定时间间隔进行检查以存储异常时间。 根据预测时间指定,基于所述时间和来自初始数据输入装置112的故障影响方向等的信号113获得在指定预测时间内的故障影响范围内的装置 来自操作员控制台110的信号111,并且这些设备的数量显示在显示设备115上。
    • 8. 发明专利
    • INFERRING SYSTEM FOR IN-PLANT TROUBLE CAUSE
    • JPS5890122A
    • 1983-05-28
    • JP18787881
    • 1981-11-25
    • HITACHI LTD
    • FURUKAWA MASAZUMIMIYAZAKI SATOSHISHINTANI SADANORI
    • G01M99/00G01D21/00
    • PURPOSE:To infer exactly the cause of a trouble from the information given by sensors of a limited number by inferring the cause of a trouble based on the propagation of the effect of a trouble among the whole units and also on the information on abnormalities and normalities obtained from sensor information. CONSTITUTION:A plant 101 consists of a plurality of constituent machines 102 and several sensors 103. A sensor 103 detects the signal 104 for the operation state of each constituent device 102, and the detection signal 105 is outputted to an abnormality detecting device 107 that consists of an abnormality detector 107. In the abnormality detector 107 a reference signal for judgement of normality or abnormality of each signal is stored and it compares a detection signal 105 with the reference signal, and the signal 108 that indicates whether a detection signal 105 is normal or abnormal is outputted to a trouble inferrence device 109. In the trouble inferrence device 109 the inferrence of trouble wave and its priority is displayed 113 based on the signal 198, the direction of trouble wave progress from the initial data input device 110, the probability of progress, the signal 111 for the rate of trouble occurrence. In this way a trouble cause is inferred correctly.
    • 10. 发明专利
    • ESTIMATING SYSTEM FOR FAULT INFLUENCE RANGE OF PLANT
    • JPS60107111A
    • 1985-06-12
    • JP21396683
    • 1983-11-16
    • HITACHI LTD
    • MIYAZAKI SATOSHIFURUKAWA MASAZUMISHINTANI SADANORIMURATA FUMIOHASHIMOTO SHIGEO
    • G05B23/02
    • PURPOSE:To decide easily the order of countermeasure at the time of fault by calculating the probability of the temporary fault influence simultaneously in a step of revising the temporary fault affecting time to the assembly of non affected elements. CONSTITUTION:A plant 101 consists of plural component devices 102 and sensors 103, and the detection signal 105 of the action state (flow rate, etc.) of the plant is supplied to a fault detectors 107 to be compared with a reference signal for decision of fault which is previously stored. This comparison signal 108 is supplied to a fault influence range estimating device 109 and checked at every fixed period of time. Then the changing time point into a fault signal is stored. When an estimated time point designation signal 111 is delivered from an operator console 110, the device 109 obtains the devices which are included within a fault influence range at a designated and estimated time point in accordance with the signal 111 and an influence probability signal 113 supplied from an initial data input device 112 as well as a stored time point. Then the device 109 delivers the numbers of the obtained devices to a display device 115.