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    • 1. 发明授权
    • Method of detecting abnormality in fuel supply systems of internal
combustion engines
    • 检测内燃机燃油供应系统异常的方法
    • US5070847A
    • 1991-12-10
    • US649026
    • 1991-02-01
    • Eitetsu AkiyamaToshikazu OketaniShigetaka Kuroda
    • Eitetsu AkiyamaToshikazu OketaniShigetaka Kuroda
    • F02B75/02F02D41/14F02D41/22F02D45/00
    • F02D41/1495F02D41/1443F02D41/2454F02B2075/027F02D41/2483
    • A method of detecting abnormality in a fuel supply system of an internal combustion engine. An amount of fuel supplied to the engine is controlled in a feedback manner based on an air-fuel ratio correction coefficient set in response to an output signal from at least one exhaust gas component concentration sensor. The method comprises the steps of (1) calculating an abnormality determination value based on the air-fuel ratio correction coefficient, (2) calculating a learned average value of the air-fuel ratio correction coefficient, (3) renewing the abnormality determination value when the calculated learned average value of the air-fuel ratio correction coefficient falls outside a first predetermined range defined based upon the abnormality determination coefficient, and (4) determining that the fuel supply system is abnormal when the renewed value of the abnormality determination value falls outside a second predetermined range defined by predetermined upper and lower limit values.
    • 一种检测内燃机的燃料供给系统的异常的方法。 基于响应于来自至少一个废气分量浓度传感器的输出信号而设定的空燃比校正系数,以反馈方式控制供给发动机的燃料量。 该方法包括以下步骤:(1)基于空燃比校正系数计算异常判定值,(2)计算空燃比校正系数的学习平均值,(3)更新异常判定值, 计算出的空燃比校正系数的求出平均值落在基于异常判定系数所定义的第一预定范围之外,(4)当异常判定值的更新值落在外部时,判定燃料供给系统异常 由预定的上限和下限值限定的第二预定范围。
    • 3. 发明授权
    • Driving wheel slip control system having failsafe function
    • 驱动轮滑移控制系统具有故障保护功能
    • US5065834A
    • 1991-11-19
    • US553041
    • 1990-07-16
    • Kazuo HirabayashiTetsuya OonoEitetsu AkiyamaYukihisa IshiiShigenobu SekiyaYuji Fujimura
    • Kazuo HirabayashiTetsuya OonoEitetsu AkiyamaYukihisa IshiiShigenobu SekiyaYuji Fujimura
    • B60K28/16
    • B60K28/16
    • A driving wheel slip control system installed in a vehicle and having abnormality-detecting and failsafe functions. The system includes a slip status signal-generating device for generating a slip status signal indicative of whether or not the driving wheels of the vehicle are in a predetermined slip state, and a slip level signal-generating device for generating a slip level signal indicative of a degree of slip of the driving wheels. If a logical relationship between the slip status signal and the slip level signal is abnormal, and if the prime mover for driving the driving wheels is not accelerating and at the same time the slip level signal indicates the predetermined slip state, the slip level signal is determined to be abnormal. If an abnormality is detected during driving wheel slip control, an amount of reduction in output of the driving wheels is set to a predetermined amount to thereby continue driving wheel slip control, until the prime mover enters an operating condition other than acceleration. Further, the system comprises first and second control units. The latter informs the former of three states for determining whether or not driving wheel slip control can be carried out. The first control unit has the slip level signal-generating device and the slip status signal-generating device, and inhibition of operation of these devices is retarded when it is informed of a state inhibiting driving wheel slip control, if an excessive slip state of the driving wheels is occurring.
    • 安装在车辆中的驱动轮滑移控制系统,具有异常检测和故障保护功能。 该系统包括滑动状态信号发生装置,用于产生指示车辆的驱动轮是否处于预定打滑状态的打滑状态信号,以及用于产生滑动水平信号的滑差水平信号产生装置, 驱动轮的滑动程度。 如果滑差状态信号与滑差水平信号之间的逻辑关系异常,并且如果用于驱动驱动轮的原动机不加速,同时滑差水平信号表示预定的滑动状态,滑差水平信号为 确定为异常。 如果在驱动轮打滑控制期间检测到异常,则将驱动轮的输出减少量设定为预定量,从而继续驱动车轮打滑控制,直到原动机进入加速度以外的操作条件。 此外,该系统包括第一和第二控制单元。 后者通知前三个州,以确定是否可以执行驱动轮滑差控制。 第一控制单元具有滑差信号发生装置和滑差状态信号发生装置,并且当通知禁止驱动轮打滑控制的状态时,这些装置的操作的禁止被延迟,如果 驱动轮正在发生。
    • 4. 发明授权
    • Fuel supply control system for internal combustion engines
    • 内燃机燃油供应控制系统
    • US4844039A
    • 1989-07-04
    • US184353
    • 1988-04-21
    • Shunzaburo OsakiEitetsu Akiyama
    • Shunzaburo OsakiEitetsu Akiyama
    • F02D41/00F02D41/06F02D45/00
    • F02D41/061
    • A fuel supply control system for an internal combustion engine comprises a start detecting device for detecting a starting condition of the engine, and a starting fuel supply device for supplying an amount of fuel required for starting the engine which corresponds to an output generated from a device for detecting an engine temperature, when the start detecting device detects the starting condition of the engine. A timer is associated with the start detecting device for counting time elapsed from the time the start detecting device detects the starting condition of the engine and generating an output corresponding to the elapsed time. A fuel decreasing device is responsive to respective outputs from a throttle opening sensor and the timer, for decreasing the amount of fuel for starting the engine, supplied by the starting fuel supply device.
    • 一种用于内燃机的燃料供应控制系统,包括用于检测发动机的起动状态的起动检测装置和用于提供启动发动机所需的燃料量的起动燃料供应装置,其对应于从装置产生的输出 用于检测发动机温度,当起动检测装置检测到发动机的起动状态时。 定时器与开始检测装置相关联,用于计数从开始检测装置检测到发动机的起动状态开始的时间经过的时间,并产生与经过的时间对应的输出。 燃料减少装置响应于来自节气门开度传感器和定时器的相应输出,用于减少由起动燃料供应装置提供的用于起动发动机的燃料量。
    • 5. 发明授权
    • EGR controller for cylinder cut-off engine
    • 气缸切断发动机的EGR控制器
    • US06244258B1
    • 2001-06-12
    • US09443737
    • 1999-12-01
    • Eitetsu AkiyamaToshiyuki SuzukiRyuji KohnoMorio Fukuda
    • Eitetsu AkiyamaToshiyuki SuzukiRyuji KohnoMorio Fukuda
    • F02M2507
    • F02D21/08F02D13/06F02M26/48F02M26/53Y02T10/18
    • The EGR controller 1 controls the EGR actions wherein exhaust gas from the cylinder cut-off engine 3 which can change over the running condition between the all-cylinder run and the cut-off-cylinder is recirculated to the induction. The EGR controller 1 comprises an EGR control valve 6 for opening and closing the EGR pipe 13, a water temperature sensor 5 for detecting cooling water temperature TW and an ECU 2, and the ECU 2 controls the EGR actions so as tobe executed if the cooling water temperature TW is higher (determined as “Yes” at Step 10) than the upper limit value TWE1H while at the all-cylinder run (determined as “No” at Step 2) or if the cooling water temperature TW is higher than the lower limit value TWE1L while at the cut-off-cylinder run (determined as “Yes” at Step 2).
    • EGR控制器1控制EGR动作,其中来自气缸切断发动机3的可以在全汽缸行程和截止缸之间的运行状态改变的废气再循环到感应。 EGR控制器1包括用于打开和关闭EGR管13的EGR控制阀6,用于检测冷却水温度TW的水温传感器5和ECU 2,并且ECU 2控制EGR动作,以便如果冷却 在全缸运行时(步骤2中判定为“否”),或者如果冷却水温度TW高于下限温度TW,则水温TW高于步骤10中的“是” 在切断缸运行时(步骤2确定为“是”)的限制值TWE1L。
    • 7. 发明授权
    • Engine control device
    • 发动机控制装置
    • US5187935A
    • 1993-02-23
    • US839063
    • 1992-02-19
    • Eitetsu AkiyamaNoriyuki Kishi
    • Eitetsu AkiyamaNoriyuki Kishi
    • F01L1/26F02B37/24F02D13/02F02D41/00
    • F02D41/0007F01L1/267F02B37/24F02D13/0234F02B2275/18F02D2041/001F02D2200/501Y02T10/144Y02T10/18
    • An engine control system comprising a variable valve actuating mechanism for an engine which may consists of a mechanism capable of varying valve timing, a variable capacity supercharger which may consists of a turbocharger provided with moveable vanes for varying a cross sectional area of an exhaust gas passage leading to a turbine wheel, and a control unit for controlling a valve actuating operation of the valve actuating mechanism and a capacity varying operation of the variable capacity supercharger. The capacity of the supercharger is controlled by taking into account the operating conditions of the valve actuating mechanism. Thus, the control unit is capable of achieving a precise and prompt control action, and, by appropriately determining the control plan, it is possible to increase the maximum output of the engine and/or to reduce strain on the engine.
    • 一种发动机控制系统,包括用于发动机的可变气门致动机构,该可变气门致动机构可由能够改变气门正时的机构组成;可变容量增压器,其可由涡轮增压器组成,涡轮增压器设置有用于改变排气通道的横截面积的可移动叶片 通向涡轮机叶轮,以及用于控制阀致动机构的阀致动操作的控制单元和可变容量增压器的容量变化操作。 通过考虑阀致动机构的运行条件来控制增压器的容量。 因此,控制单元能够实现精确且及时的控制动作,并且通过适当地确定控制计划,可以增加发动机的最大输出和/或减小发动机的应变。