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    • 3. 发明授权
    • Heat wire type air flowrate measuring apparatus
    • 热丝式空气流量测量仪
    • US4665745A
    • 1987-05-19
    • US729852
    • 1985-05-02
    • Katsuhiro InaYoshihisa SatoMasumi KinugawaAtsushi SuzukiKatsunori ItoSusumu AkiyamaTiaki MizunoToshitaka YamadaTomoaki Abe
    • Katsuhiro InaYoshihisa SatoMasumi KinugawaAtsushi SuzukiKatsunori ItoSusumu AkiyamaTiaki MizunoToshitaka YamadaTomoaki Abe
    • G01F1/698G01F1/68
    • G01F1/6986
    • 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.
    • 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。
    • 6. 发明授权
    • Apparatus for processing engine operation detection signals
    • 用于处理发动机操作检测信号的装置
    • US4800499A
    • 1989-01-24
    • US854818
    • 1986-04-23
    • Katsuhiro InaSusumu AkiyamaYuzi Hirabayashi
    • Katsuhiro InaSusumu AkiyamaYuzi Hirabayashi
    • F02D45/00F02D41/24F02D41/32F02P5/04F02P9/00G01F1/72F02D41/30
    • F02D41/28F02D41/32F02P5/045F02P9/00
    • 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.
    • 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。
    • 7. 发明授权
    • Control system for an engine having air passage
    • 具有空气通道的发动机的控制系统
    • US4612894A
    • 1986-09-23
    • US791526
    • 1985-10-25
    • Yoshihisa SatohSusumu AkiyomaKatsunori ItoKatsuhiro InaMasumi KinugawaAtsushi Suzuki
    • Yoshihisa SatohSusumu AkiyomaKatsunori ItoKatsuhiro InaMasumi KinugawaAtsushi Suzuki
    • F02D41/18F02M51/00
    • F02D41/187
    • An engine control system has a heater and a temperature measuring element with a temperature-resistance characteristic. The heater and element are provided in the intake pipe of an engine. Heating, which initiated by a start pulse signal generated by an engine control unit in synchronism with engine rotation is supplied to the heater through a transistor. When the heater temperature has reached a reference temperature preset in accordance with the intake air temperature measured by the element, a comparator generates an output to deenergize the heater. The period of supplying the heating power is represented by a pulse signal from a flip-flop. This pulse signal is supplied as an airflow measurement signal to the engine control unit. The engine control unit calculates the basic fuel injection quantity and determines if the starting of the pulse signal received by the control unit falls within a predetermined period from the starting of the start pulse signal. If the starting has fallen outside the predetermined period, the output signal is considered to have been generated in response to a noise signal. In this case, a normal output signal next to the output signal generated in response to the noise signal is corrected.
    • 发动机控制系统具有加热器和耐温特性的温度测量元件。 加热器和元件设置在发动机的进气管中。 由发动机控制单元产生的与发动机旋转同步的起动脉冲信号启动的加热通过晶体管供给加热器。 当加热器温度达到根据由元件测量的进气温度预设的参考温度时,比较器产生一个使加热器灭弧的输出。 提供加热功率的周期由来自触发器的脉冲信号表示。 该脉冲信号作为气流测量信号提供给发动机控制单元。 发动机控制单元计算基本燃料喷射量,并确定由控制单元接收到的脉冲信号的启动是否落在从开始脉冲信号开始的预定时间段内。 如果启动已经落在预定时间段之外,则输出信号被认为是响应于噪声信号而产生的。 在这种情况下,校正与响应于噪声信号而产生的输出信号相邻的正常输出信号。
    • 8. 发明授权
    • Azimuth determination apparatus
    • 方位测定装置
    • US4751783A
    • 1988-06-21
    • US57177
    • 1987-06-03
    • Katsuhiro InaYuji HirabayashiSusumu AkiyamaKazushi AkutsuKiyohumi Kage
    • Katsuhiro InaYuji HirabayashiSusumu AkiyamaKazushi AkutsuKiyohumi Kage
    • G01C17/28G01C17/38
    • G01C17/38
    • 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.
    • 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。
    • 9. 发明申请
    • Vehicle navigation apparatus and method
    • 车载导航仪及方法
    • US20080071474A1
    • 2008-03-20
    • US11889799
    • 2007-08-16
    • Tomoya HarayamaKatsuhiro Ina
    • Tomoya HarayamaKatsuhiro Ina
    • G01C21/36G06F17/30
    • G01C21/3658G01C21/3602G01C21/3629
    • A vehicle navigation apparatus includes an imaging device, a guidance point determining device, an object detecting device and a traveling guiding device. The imaging device takes an image of a periphery adjacent to a subject vehicle. The guidance point determining device determines the subject vehicle to be located at a traveling guidance point or not. The object detecting device detects a changing object by comparing two images of the periphery taken at a predetermined interval, when the guidance point determining device determines the subject vehicle to be located at the traveling guidance point. The traveling guiding device performs a traveling guidance by using the changing object as a target object of the traveling guidance.
    • 车辆导航装置包括成像装置,引导点确定装置,物体检测装置和行进引导装置。 成像装置拍摄与本车辆相邻的周边的图像。 引导点确定装置确定要在行驶引导点处的目标车辆。 物体检测装置通过比较当引导点确定装置确定要在行驶引导点处定位的目标车辆时以预定间隔拍摄的周边的两个图像来检测变化对象。 行驶导引装置通过使用变更对象作为行驶指导的目标对象来执行行驶引导。
    • 10. 发明授权
    • Communication system for vehicle control system having presettable
initial state
    • 具有预置初始状态的车辆控制系统通信系统
    • US5486817A
    • 1996-01-23
    • US96838
    • 1993-07-26
    • Katsuhiro Ina
    • Katsuhiro Ina
    • B60R16/02B60R16/023B60R16/03G05B19/042H04Q9/00G05B23/02
    • B60R16/0315G05B19/0425G05B2219/21158G05B2219/2637
    • A communication system for a vehicle conducts mutual communication between a central station and peripheral stations via a communication signal line. A communication signal from the central station is inputted via the communication signal line, which is outputted to an output circuit via a shift register and another register to drive and control lamps and the like. In addition, a continuity control circuit is controlled during a period from a time at which an electric power supply voltage is supplied to the peripheral station from a battery carried on the vehicle until the peripheral station receives a first communication signal from the central station to electrically separate the register and the output circuit. In such a case, the output circuit is connected to the other components to enable drive control in a desired initial state regardless of the above-mentioned communication signal. When the first communication signal from the central station is received, drive control of the above-mentioned control system is carried out in accordance with the communication signal.
    • 用于车辆的通信系统经由通信信号线进行中央站和外围站之间的相互通信。 来自中央站的通信信号经由通信信号线输入,该通信信号线通过移位寄存器和另一个寄存器输出到输出电路以驱动和控制灯等。 此外,在从从车辆上携带的电池向周边站供给电力供应电压的时间段到周边站台接收到从中心站到电气的第一通信信号的期间内,控制连续性控制电路 分离寄存器和输出电路。 在这种情况下,无论上述通信信号如何,输出电路都连接到其他组件以使驱动器控制在期望的初始状态。 当接收到来自中央站的第一通信信号时,根据通信信号进行上述控制系统的驱动控制。