公开(公告)号：US5999955A

公开(公告)日：1999-12-07

申请号：US954702

申请日：1997-10-20

申请人： Leighton Ira Davis, Jr. ,  Robert Wayne Matteson

发明人： Leighton Ira Davis, Jr. ,  Robert Wayne Matteson

IPC分类号： H03H17/00 ,  H03H17/04 ,  G06F17/10

CPC分类号： H03H17/04 ,  H03H17/0009

摘要： An N.sup.th order infinite impulse response digital filter for long-delay filtering of signals representing a digital input sequence. The N.sup.th order infinite impulse response digital filter is synthesized by cascading in series N first order infinite impulse response filter stages. A filter stage operable on a digital computer with floating point capability is provided and comprises a multiplier which multiplies an input signal with a weighting factor. A summing element provides an output for the filter stage by summing the weighted input signal with a weighted and delayed output signal. A filter operable on a digital computer with fixed point capability is provided and comprises a summing element which sums an input signal with the output of a first multiplier, and the delayed output of a mask element. The output of the summing element is coupled to the input of a second multiplier and to the input of the mask element. The second multiplier provides an output for the filter stage which is also used, in a delayed form as the input of the first multiplier.

摘要翻译： 第N阶无限脉冲响应数字滤波器，用于长时间滤波表示数字输入序列的信号。 第N阶无限脉冲响应数字滤波器通过串联N个第一阶无限脉冲响应滤波器级合成。 提供了可在具有浮点能力的数字计算机上操作的滤波器级，并且包括将输入信号与加权因子相乘的乘法器。 加法元件通过将加权的输入信号与加权和延迟的输出信号相加来为滤波器级提供输出。 提供了可在具有固定点能力的数字计算机上操作的滤波器，并且包括将输入信号与第一乘法器的输出相加的求和元件和掩模元件的延迟输出。 求和元件的输出耦合到第二乘法器的输入端和掩模元件的输入端。 第二乘法器为滤波器级提供输出，该输出也以延迟形式用作第一乘法器的输入。

公开(公告)号：US5937940A

公开(公告)日：1999-08-17

申请号：US83587

申请日：1993-06-30

申请人： Leighton Ira Davis, Jr. ,  Thomas Francis Sieja ,  Gerhard Allan Dage ,  Robert Wayne Matteson

发明人： Leighton Ira Davis, Jr. ,  Thomas Francis Sieja ,  Gerhard Allan Dage ,  Robert Wayne Matteson

IPC分类号： B60H1/00 ,  G05D23/19 ,  F25B29/00 ,  F24F7/00

CPC分类号： B60H1/00735 ,  G05D23/1917

摘要： Method and system for predicting air discharge temperature in a control system which controls an automotive HVAC (heating, ventilation and air conditioning) system using a model. The model is based on signals generated by various climate control sensors and actuation outputs to predict air discharge temperature without the need for an additional sensor. The model allows the avoidance of uncomfortable air discharge temperatures to thereby increase passenger comfort.

摘要翻译： 在使用模型控制汽车HVAC（加热，通风和空调）系统的控制系统中预测空气排放温度的方法和系统。 该模型基于由各种气候控制传感器和致动输出产生的信号，以预测空气排放温度，而无需额外的传感器。 该模型允许避免不舒适的空气排放温度，从而增加乘客舒适度。