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    • 126. 发明授权
    • Apparatus for and method of controlling temperature of exhaust gas sensor, and recording medium storing program for controlling temperature of exhaust gas sensor
    • 排气传感器温度控制装置及其控制方法,以及排气传感器温度控制记录介质存储程序
    • US07337772B2
    • 2008-03-04
    • US10770376
    • 2004-02-03
    • Yuji YasuiYoshihisa Iwaki
    • Yuji YasuiYoshihisa Iwaki
    • F02D41/00B60T7/12
    • G05D23/2401G05D23/1919G05D23/27
    • The temperature of an exhaust gas flowing through an exhaust passage 3 is estimated or detected, and the temperature of an active element of an exhaust gas sensor 8. (O2 sensor) is controlled at a predetermined target temperature by a heater using the estimated or detected temperature of the exhaust gas. For estimating the temperature of the exhaust gas in the vicinity of the exhaust gas sensor 8, the exhaust passage 3 extending up to the exhaust gas sensor 8 is divided into a plurality of partial exhaust passageways 3a through 3d, the temperatures of the exhaust gas in the partial exhaust passageways 3a through 3d are estimated successively from an exhaust port 2 of an engine 1. The temperature of the exhaust gas is estimated according to an algorithm which takes into account a heat transfer between the exhaust gas and passage-defining members 6a, 6b, 7 which define the exhaust passage 3 and a heat radiation from the passage-defining members into the atmosphere. A control input that is applied to the heater includes at least a component depending on the temperature of the active element of the exhaust gas sensor 8 and a component depending on the temperature of the exhaust gas. Even if the temperature of the exhaust gas changes, the temperature of the active element of the exhaust gas sensor 8 can be controlled stably at the desired temperature.
    • 估计或检测流过排气通道3的废气的温度,以及排气传感器8的有源元件的温度。 (O 2传感器)通过使用估计或检测到的废气温度的加热器控制在预定目标温度。 为了估计排气传感器8附近的废气的温度,向废气传感器8延伸的排气通路3分为多个部分排气通路3a〜3d,排气温度 从发动机1的排气口2连续地估计局部排气通道3 a至3 d中的气体。 排气的温度根据考虑到排气和限定排气通道3的通道限定部件6a,6b,7之间的传热以及来自通道限定部件的热辐射的算法来估计 会员进入大气。 施加到加热器的控制输入至少包括取决于废气传感器8的有源元件的温度的元件和取决于废气温度的元件。 即使排气的温度变化,也能够将废气传感器8的有源元件的温度稳定地控制在期望的温度。
    • 130. 发明授权
    • Controller for controlling a plant
    • 用于控制植物的控制器
    • US07305297B2
    • 2007-12-04
    • US11642550
    • 2006-12-21
    • Yuji YasuiKanako ShimojoEiji HashimotoYshihisa Iwaki
    • Yuji YasuiKanako ShimojoEiji HashimotoYshihisa Iwaki
    • G06F17/00G06F19/00F02D11/10
    • F02D41/1402F02D2041/1409F02D2041/1415F02D2041/1416F02D2041/1423F02D2041/1431
    • The present invention provides a controller for controlling a modeled plant robustly against disturbance. The controller comprises an estimator and a control unit. The estimator estimates disturbance applied to the plant. The control unit determines an input to the plant so that an output of the plant converges to a desired value. The input to the plant is determined to include a value obtained by multiplying the estimated disturbance by a predetermined gain. Since estimated disturbance is reflected in the input to the plant, control having robustness against disturbance is implemented. The controller may comprise a state predictor. The state predictor predicts the output of the plant based on the estimated disturbance and dead time included in the plant. The control unit determined the input to the plant so that the predicted output converges to a desired value. Since the state predictor allows for the dead time, the accuracy of the control is improved. The estimated disturbance is reflected in the predicted output, an error between the predicted output and an actual output of the plant is removed.
    • 本发明提供了一种控制器,用于强制地对干扰进行控制。 控制器包括估计器和控制单元。 估计器估计对工厂的干扰。 控制单元确定对设备的输入,使得设备的输出收敛到期望值。 确定到工厂的输入包括通过将估计的扰动乘以预定增益而获得的值。 由于估计的干扰反映在工厂的输入中,因此实现了具有抗干扰性的鲁棒性的控制。 控制器可以包括状态预测器。 状态预测器根据工厂包括的估计干扰和死区时间来预测工厂的产量。 控制单元确定对工厂的输入,使得预测输出收敛到期望值。 由于状态预测器允许死区时间,因此提高了控制的精度。 估计的干扰反映在预测的输出中,预测输出与工厂的实际输出之间的误差被消除。