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公开(公告)号：US4800499A
公开(公告)日：1989-01-24
申请号：US854818
申请日：1986-04-23
申请人： Katsuhiro Ina , Susumu Akiyama , Yuzi Hirabayashi
发明人： Katsuhiro Ina , Susumu Akiyama , Yuzi Hirabayashi
摘要： A rotation signal Ne is generated for every 1.degree. of rotation of the engine crankshaft together with a crankshaft angle signal G for every 360.degree. of crankshaft rotation. In response to each rotation signal Ne, a pseudo random number generator generates random number data which is converted to analog data by a D/A converter and supplied to a comparator circuit. An intake air pressure detection data Pim is also supplied to the comparator circuit and the two signals are compared. When the detection data Pim is larger than the converted analog data, the comparator output level is high. The output from the comparator is read for every rotation signal Ne and, when the detection data is larger than the analog data from the D/A converter, a counter is incremented. The count value is read for every generation of the crankshaft signal G and is supplied to the engine control unit as the intake air pressure detection data. The counter is then reset to the initial count value.
摘要翻译： 每发生一次曲轴旋转360°，每发动机曲轴每转1度产生旋转信号Ne，以及曲轴角度信号G。 响应于每个旋转信号Ne，伪随机数发生器产生随机数数据，其通过D / A转换器转换成模拟数据并提供给比较器电路。 进气压力检测数据Pim也被提供给比较器电路，并且比较两个信号。 当检测数据Pim大于转换的模拟数据时，比较器输出电平为高。 对于每个旋转信号Ne读取比较器的输出，当检测数据大于D / A转换器的模拟数据时，计数器递增。 对于每一代曲轴信号G读取计数值，并将其作为进气压力检测数据提供给发动机控制单元。 然后将计数器复位到初始计数值。
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公开(公告)号：US4671242A
公开(公告)日：1987-06-09
申请号：US736373
申请日：1985-05-21
CPC分类号： F02D41/2412 , F02D41/182 , F02D41/187
摘要： An engine control apparatus has an air flow rate measuring device for measuring an intake air flow rate. A temperature sensing element having a temperature characteristic and constituting the device is arranged in an intake pipe. The device generates an output pulse signal having a pulse width T corresponding to the intake air flow rate. An engine control unit has the one-dimensional map for storing the relationship between the engine speed N and the pulse width to of the signal corresponding to the air flow rate. This data to is read out from the one-dimensional map in accordance with the engine speed N. Subsequently, the data to is subtracted from the data T to calculate a time duration t. The unit also has a two-dimensional map for storing the relationship between each time duration t and the corresponding rate G/N in correspondence with each of the present engine speeds. A corresponding rate G/N is read out from the two-dimensional map in response to the calculated time duration t. The resultant rate G/N is used to calculate fuel injection quantity.
摘要翻译： 发动机控制装置具有用于测量进气流量的空气流量测量装置。 具有温度特性并构成装置的温度感测元件设置在进气管中。 该装置产生具有对应于进气流量的脉冲宽度T的输出脉冲信号。 发动机控制单元具有存储发动机转速N与对应于空气流量的信号的脉冲宽度对的关系的一维映射。 根据发动机转速N从一维映射中读出该数据。接着，从数据T中减去数据，计算持续时间t。 该单元还具有用于存储与每个当前发动机速度相对应的每个持续时间t和相应速率G / N之间的关系的二维图。 响应于计算的持续时间t，从二维图中读出对应的速率G / N。 合成速率G / N用于计算燃料喷射量。
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3.发明授权
公开(公告)号：US4736302A
公开(公告)日：1988-04-05
申请号：US742524
申请日：1985-06-07
申请人： Masumi Kinugawa , Norio Omori , Tomoaki Abe , Katsunori Ito , Susumu Akiyama , Yuzi Hirabayashi
发明人： Masumi Kinugawa , Norio Omori , Tomoaki Abe , Katsunori Ito , Susumu Akiyama , Yuzi Hirabayashi
IPC分类号： F02D41/00 , F02D41/18 , F02D41/24 , F02D41/26 , F02D45/00 , H01L21/302 , F02M51/00 , G01F1/68
CPC分类号： F02D41/187 , F02D41/263
摘要： A system for controlling the operating condition of an engine in which a temperature sensing element constitutes an airflow measuring device disposed in an intake air passage of the engine. The temperature sensing element is supplied with a heating current in response to a start pulse signal produced with every one-half period of each combustion cycle of the engine. A comparator delivers an output signal when a reference temperature set on the basis of the air temperature measured by an auxiliary temperature sensing element is reached by the temperature of the temperature sensing element. A pulse signal indicative of the time interval between the generation of the start pulse signal and a rise in the output signal of the comparator is delivered as an airflow measurement signal. The average airflow quantity responsive to one combustion cycle of the engine is detected, and a correction factor K is calculated from the difference between two airflow rate data measured in each combustion cycle and the average airflow quantity. Based on the correction factor K, the injection quantity, injection timing and the like are calculated.
摘要翻译： 一种用于控制发动机的操作状态的系统，其中温度感测元件构成设置在发动机的进气通道中的气流测量装置。 响应于在发动机的每个燃烧循环的每半个周期产生的起动脉冲信号，向温度感测元件供应加热电流。 当基于由辅助温度感测元件测量的空气温度设定的参考温度达到温度感测元件的温度时，比较器输出输出信号。 指示起始脉冲信号的产生和比较器的输出信号的上升之间的时间间隔的脉冲信号作为气流测量信号被输送。 检测响应于发动机的一个燃烧循环的平均气流量，并且根据在每个燃烧循环中测量的两个气流速率数据与平均气流量之间的差计算校正因子K. 基于校正因子K，计算喷射量，喷射正时等。
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公开(公告)号：US4730255A
公开(公告)日：1988-03-08
申请号：US737088
申请日：1985-05-23
CPC分类号： F02D41/2422 , F02D41/187
摘要： An engine control apparatus for controlling the quantity of fuel injected into the engine is equipped with an intake air flow rate measuring device for detecting the operating state of the engine. This measuring device has a heat sensitive element, which is located in the intake pipe, and outputs a pulse signal having a pulse width T corresponding to the intake fuel amount. Engine control apparatus has a plurality of map memory means in which a plurality of functions f.sub.1 (N), f.sub.2 (N), f.sub.3 (N), which express the polynomial approximation ##EQU1## for expressing the air flow rate G/N per engine revolution, are stored as the parameters of the number of engine rotations N. These functions are read out from the maps and, based on the number of engine rotations N, the fuel injection amount corresponding to the pulse width T of the air flow rate is calculated.
摘要翻译： 用于控制喷射到发动机中的燃料量的发动机控制装置配备有用于检测发动机的运行状态的进气流量测量装置。 该测量装置具有位于进气管中的热敏元件，并输出与进气量对应的脉冲宽度T的脉冲信号。 发动机控制装置具有多个地图存储装置，其中表示用于表示每个发动机的空气流量G / N的多项式近似值“IMAGE”的多个函数f1（N），f2（N），f3（N） 旋转数据被存储为发动机转数N的参数。这些功能从图中读出，并且基于发动机转数N，与空气流量的脉冲宽度T对应的燃料喷射量是 计算。
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公开(公告)号：US4843557A
公开(公告)日：1989-06-27
申请号：US740
申请日：1987-01-06
申请人： Katsuhiro Ina , Yuji Hirabayashi , Kazuaki Minami , Katsunori Ito , Susumu Akiyama , Hidemichi Tanabe
发明人： Katsuhiro Ina , Yuji Hirabayashi , Kazuaki Minami , Katsunori Ito , Susumu Akiyama , Hidemichi Tanabe
IPC分类号： B60R16/02 , F02D45/00 , G01M15/04 , G01M17/007 , G05B23/02 , G06F11/22 , G06F11/32 , G07C5/08
CPC分类号： G05B23/0251 , G06F11/22 , G07C5/0808 , G06F11/32
摘要： A plurality of control systems mounted on a vehicle such as an automobile, and provided for different controlled objects are respectively made of control computers. These control computers are linked by a common data bus. These computers exclusively execute, for example, an engine control, a transmission control, a brake control, a suspension control, and a auto drive control. The data bus is further connected to a diagnosis computer. Each control computer detects a signal from the sensor provided corresponding to each controlled object, and outputs the detect signal to the data bus. Each control computer executes the logical operation for its control on the basis of its detect signal and various data transferred to the data bus. The diagnosis computer supervises an operating state of each control system on the basis of the data transferred to the data bus. When an abnormality is detected, the diagnosis computer stores this data in a large-capacity memory, and displays the abnormality.
摘要翻译： 安装在诸如汽车的车辆上并为不同受控对象提供的多个控制系统分别由控制计算机构成。 这些控制计算机通过公共数据总线链接。 这些计算机专门执行例如发动机控制，变速器控制，制动控制，悬架控制和自动驾驶控制。 数据总线进一步连接到诊断计算机。 每个控制计算机检测来自与每个受控对象相对应的传感器提供的信号，并将检测信号输出到数据总线。 每个控制计算机根据其检测信号和传输到数据总线的各种数据执行其控制的逻辑操作。 诊断计算机根据传输到数据总线的数据来监控每个控制系统的运行状态。 当检测到异常时，诊断计算机将该数据存储在大容量存储器中，并显示异常。
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公开(公告)号：US4665745A
公开(公告)日：1987-05-19
申请号：US729852
申请日：1985-05-02
申请人： Katsuhiro Ina , Yoshihisa Sato , Masumi Kinugawa , Atsushi Suzuki , Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
发明人： Katsuhiro Ina , Yoshihisa Sato , Masumi Kinugawa , Atsushi Suzuki , Katsunori Ito , Susumu Akiyama , Tiaki Mizuno , Toshitaka Yamada , Tomoaki Abe
CPC分类号： G01F1/6986
摘要： An air flowrate measuring apparatus with a heat wire measures the flow rate of the air flowing through the intake pipe of an engine. The apparatus has a temperature sensitive element which has a specific temperature-resistance characteristic and is disposed in the intake pipe. Constant heating voltage is applied to this element in response to a start signal, thus heating the element. When the temperature of the element rises to a specified value, the application of the voltage is stopped. At the same time, a pulse signal whose width corresponds to the period of applying the voltage is generated. The signal is supplied to an interface circuit through a drive circuit driven by a reference voltage which has been also used to control the heating voltage. The interface circuit comprises two wave-shaping circuits. The first wave-shaping circuit has a filter means of a small integration time constant. The second wave-shaping circuit has a filter means whose integration time constant is large enough to remove noise from the input signal.
摘要翻译： 具有热丝的空气流量测量装置测量流过发动机的进气管的空气的流量。 该装置具有温度敏感元件，该温度敏感元件具有特定的耐温特性并且设置在进气管中。 响应于启动信号对该元件施加恒定的加热电压，从而加热元件。 当元件的温度上升到指定值时，停止施加电压。 同时，产生宽度对应于施加电压的周期的脉冲信号。 该信号通过由参考电压驱动的驱动电路提供给接口电路，该参考电压也被用于控制加热电压。 接口电路包括两个波形整形电路。 第一波形整形电路具有小积分时间常数的滤波器装置。 第二波形整形电路具有滤波器装置，其积分时间常数足够大以从输入信号中去除噪声。
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公开(公告)号：US4894781A
公开(公告)日：1990-01-16
申请号：US103271
申请日：1987-10-01
申请人： Yoshihisa Sato , Susumu Akiyama , Yuji Hirabayashi , Katsuhiro Ina , Katsunori Ito , Takao Saito , Tetsuo Tanigawa
发明人： Yoshihisa Sato , Susumu Akiyama , Yuji Hirabayashi , Katsuhiro Ina , Katsunori Ito , Takao Saito , Tetsuo Tanigawa
IPC分类号： H04L29/14 , B60R16/02 , F02D41/26 , G05B19/042
CPC分类号： G05B19/0421 , F02D41/266 , G05B2219/2214 , G05B2219/23032
摘要： A plurality of control units are connected via a common signal line through which they communicate. Each control unit is operative to control an apparatus according to certain information the control unit normally receives directly through an exclusive signal line by operation of a directly-inputting device. A check is made to determine whether the directly-inputting device is operating normally. If not, then the required information is inputted from its source indirectly through another control unit by way of the common signal line.
摘要翻译： 多个控制单元通过它们通信的公共信号线连接。 每个控制单元可操作以根据控制单元通过直接输入设备的操作通过专用信号线直接接收的特定信息来控制设备。 进行检查以确定直接输入设备是否正常运行。 如果不是，则通过公共信号线通过另一个控制单元间接地从其源输入所需的信息。
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8.发明授权Communication control unit providing isolation of failure condition of electronic control unit 失效通信控制单元提供电子控制单元的故障状态隔离
公开(公告)号：US4835671A
公开(公告)日：1989-05-30
申请号：US098048
申请日：1987-09-17
申请人： Yoshihisa Sato , Yugi Hirabayashi , Katsuhiro Ina , Katsunori Ito , Susumu Akiyama , Takao Saito , Tetsuo Tanigawa
发明人： Yoshihisa Sato , Yugi Hirabayashi , Katsuhiro Ina , Katsunori Ito , Susumu Akiyama , Takao Saito , Tetsuo Tanigawa
CPC分类号： G05B23/0291 , G06F11/0757 , G06F11/142 , B60R16/0315 , G06F11/2221
摘要： A communication control unit for controlling communication between an electronic control unit and other equipment or other electronic control units, the communication control unit functioning to judge whether or not the operation of the electronic control unit is normal and, if it is judged that the electronic control unit is operating abnormally, the communication control unit acts to reset the electronic control unit to an initial operating status in order to attempt recovery from the abnormal condition, while halting transmission by the electronic control unit until it is judged that the electronic control unit has commenced to operate normally.
摘要翻译： 一种通信控制单元，用于控制电子控制单元和其他设备或其他电子控制单元之间的通信，所述通信控制单元用于判断电子控制单元的操作是否正常，并且如果判断为电子控制 单元工作异常时，通信控制单元将电子控制单元复位为初始操作状态，以便尝试从异常状态恢复，同时停止电子控制单元的传输，直到电子控制单元已经开始 正常运行
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公开(公告)号：US4825362A
公开(公告)日：1989-04-25
申请号：US947431
申请日：1986-12-29
申请人： Kazuaki Minami , Yuji Hirabayashi , Katsuhiro Ina , Katsunori Ito , Susumu Akiyama , Hidemichi Tanabe
发明人： Kazuaki Minami , Yuji Hirabayashi , Katsuhiro Ina , Katsunori Ito , Susumu Akiyama , Hidemichi Tanabe
CPC分类号： H04L12/403 , B60R16/0315 , H04L2012/40273
摘要： A data network system for a vehicle having a plurality of separate and distinct control computers carrying out a predetermined control function of the vehicle and a data communication line for communicating data among the control computers. One of the control computers determines the number of the other computers which are linked with the data communication line, and in response to that number a data transfer rate output from each of the control computers to the data communication line is determined.
摘要翻译： 一种用于车辆的数据网络系统，具有执行车辆的预定控制功能的多个独立且不同的控制计算机，以及用于在控制计算机之间传送数据的数据通信线路。 控制计算机中的一个计算机确定与数据通信线路链接的其他计算机的数量，并且响应于该数量，确定从每个控制计算机输出到数据通信线路的数据传输速率。
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公开(公告)号：US4751783A
公开(公告)日：1988-06-21
申请号：US57177
申请日：1987-06-03
CPC分类号： G01C17/38
摘要： Disclosed is an azimuth determination apparatus attached to a motor vehicle for determinating the forward direction of the vehicle. The azimuth determination apparatus includes an azimuth sensor for generating orthogonal first and second signals indicative of the forward direction of the vehicle. Two azimuth vectors are obtained on the basis of the orthogonal first and second component signals, first components of the two azimuth vectors being maximum and minimum. The determination is made in terms of the fact that the difference between second components of the two azimuth vectors is below a predetermined value. In accordance with the determination, the orthogonal first and second component signals are corrected on the basis of said two azimuth vectors so that the accurate moving direction of the motor vehicle can be obtained irrespective of the remanence of the vehicle.
摘要翻译： 公开了一种安装在机动车辆上的方位判定装置，用于确定车辆的前方。 方位确定装置包括用于产生指示车辆前进方向的正交的第一和第二信号的方位传感器。 基于正交的第一和第二分量信号获得两个方位向量，两个方位矢量的第一分量是最大和最小的。 根据两个方位向量的第二分量之间的差值低于预定值的事实进行确定。 根据确定，基于所述两个方位向量来校正正交的第一和第二分量信号，使得可以获得机动车辆的精确移动方向，而不管车辆的剩磁。
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