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    • 1. 发明授权
    • Temperature controlling apparatus for automatic air conditioning
    • 自动空调温控装置
    • US3877638A
    • 1975-04-15
    • US40383373
    • 1973-10-05
    • HITACHI LTD
    • AMANO MATSUOKIMURA ICHIROITO TOSIKATSUKANEMOTO KATSUO
    • H01J37/21B60H1/00F24F11/02G05D23/24B60H1/04G05B11/32G05D23/275
    • B60H1/00442B60H1/00485G05D23/1925G05D23/24
    • A temperature controlling apparatus for automatic air conditioning wherein a heat-generating member is provided in connection with a member displacing in response to the change of temperature, that is, a temperature sensing member, the heatgenerating member being adapted to receive an electric output corresponding to the detected temperature to convert the electric output into a pressure, and the temperature sensing member being adapted to detect a surrounding temperature. The force generated by the temperature sensing member is balanced with the force due to a gas pressure bearing against a movable member within an output pressure chamber communicated to a source of gas pressure so as to operate an actuator communicating to the output pressure chamber with a gas pressure corresponding to the detected temperature, thereby to carry out air conditioning for a car room or the like.
    • 一种用于自动空调的温度控制装置,其中发热元件与响应于温度变化的元件移位而设置,即温度检测元件,发热元件适于接收电输出 对应于检测到的温度以将电输出转换成压力,并且温度检测构件适于检测周围温度。 由温度感测部件产生的力与由与气体压力源连通的输出压力室内的可移动部件的气体压力承受的力平衡,以便操作与气体连通的输出压力室的致动器 对应于检测到的温度的压力,从而对轿厢室等进行空调。
    • 4. 发明专利
    • ENGINE CONTROL SYSTEM USING LEARNING CONTROL
    • GB2207779B
    • 1991-10-02
    • GB8816203
    • 1988-07-07
    • HITACHI LTD
    • SAKAMOTO MASAHIDEATAGO TAKESHIISHII JUNICHIAMANO MATSUOKURIHARA NOBUO
    • F02B1/04F02D41/14F02D41/24
    • An engine control system is disclosed in which the air-fuel ratio is controlled by feedback in accordance with the oxygen concentration detected of the exhaust gas, and a feedback control system thereof separate learning compensation values for compensating for the changes of the input/output characteristics of an air flow meter and a fuel injector respectively. The engine control system comprises a device for detecting the engine intake air flow, a device for detecting the engine speed, a device for detecting the oxygen concentration of the exhaust gas, a device for calculating the error between actual and target air-fuel ratios from the oxygen concentration of the exhaust gas, a device for learning the changes in the input/output characteristics of the intake air flow, a detection device to determine a first compensation factor corresponding to the changes in the input/output characteristics thereof, a device for learning the changes in the input/output characteristics of the fuel injection device to determine a second compensation factor corresponding to the changes in the input/output characteristics thereof, a device for calculating a basic fuel injection amount from the first compensation factor, the engine speed and the intake air amount, a device for calculating a required fuel flow rate reducing the air-fuel ratio error from the basic fuel injection amount, the second compensation factor and the air-fuel ratio error, a device for generating a drive signal indicating the required fuel flow rate, and the device for injecting fuel into the intake air path in the engine in response to the drive signal indicating the required fuel flow rate.
    • 9. 发明专利
    • DE68900263D1
    • 1991-10-24
    • DE68900263
    • 1989-02-17
    • HITACHI LTD
    • ISHII JUNICHIAMANO MATSUOSATO NOBUOKURIHARA NOBUO
    • F02B1/04F02D41/00F02D41/14F02D41/34F02D41/36
    • A method for feedback controlling air-fuel ratio of the mixture supplied to an internal combustion engine having a plurality of cylinders comprises the steps of detecting (534, 536) respective air-fuel ratios of the exhaust gas from the respective cylinders with an air-fuel ratio sensor having a substantially linear output characteristic over a wide variation of air-fuel ratio of the exhaust gas; calculating (538) an average air-fuel ratio by using the latest detected air-fuel ratios of the respective cylinders; determining (540) a fundamental feedback correction coefficient beta 0 for a cylinder of which air-fuel ratio is feedback controlled next; retrieving (542) a learning correction coefficient beta 1 for the cylinder of which air-fuel ratio is feedback controlled next from a learning map prepared by learning for the corresponding cylinder; and determining (552) new learning correction coefficients beta 1 for the respective cylinders using respective deviations of the respective detected current air-fuel ratios from the latest average air-fuel ratio calculated in the previous step, whereby air-fuel ratio control at any desired air-fuel ratio is carried out with a high accuracy and with a uniform air-fuel ratio throughout the whole cylinders.