Traction control device for a vehicle
    2.
    发明授权
    Traction control device for a vehicle 失效
    车辆牵引控制装置

    公开(公告)号:US5099942A

    公开(公告)日:1992-03-31

    申请号:US493916

    申请日:1990-03-15

    IPC分类号: B60K28/16 F02D17/02 F02D29/02

    CPC分类号: B60K28/16

    摘要: A traction control device comprising a cylinder number determining device for determining the number of cylinders to which the supply of fuel is to be stopped, in accordance with the speed difference between a rotating speed of a free running wheel and a rotating speed of a driven wheel. A change of an actual number of cylinders to which the supply of fuel is actually stopped by a fuel stop controlling device is prohibited until a predetermined time has elapsed from a time at which the actual number of cylinders was changed.

    Traction control device for a vehicle
    4.
    发明授权
    Traction control device for a vehicle 失效
    车辆牵引力控制装置

    公开(公告)号:US5033574A

    公开(公告)日:1991-07-23

    申请号:US506923

    申请日:1990-04-09

    摘要: A traction control device comprising a subthrottle valve arranged upstream of the main throttle valve. When the speed difference between the rotating speed of the free running wheel and the rotating speed of the driven wheel exceeds a predetermined value, the subthrottle valve is closed to reduce the output torque of the engine, and the supply of EGR gas into the intake passage and the supply of fuel vapor from the charcoal canister into the intake passage are stopped when the subthrottle valve is closed.

    摘要翻译: 一种牵引控制装置,包括设置在主节流阀上游的副节流阀。 当自由行驶轮的转速与从动轮的转速之间的速度差超过规定值时,关闭节气门以减小发动机的输出转矩,并将EGR气体供给到进气通路 并且当节气门关闭时,从活性炭罐进入进气通道的燃料蒸气的供给停止。

    System for detecting abnormalities
    5.
    发明授权
    System for detecting abnormalities 失效
    异常检测系统

    公开(公告)号:US5408969A

    公开(公告)日:1995-04-25

    申请号:US178751

    申请日:1994-01-07

    CPC分类号: F02D11/107 Y02T10/42

    摘要: A novel device of the present invention detects an abnormal driving condition where a sub-throttle valve pressed in a full-opening direction by means of a spring is abruptly driven in the full-opening direction due to an abnormal condition of an actuator, and controls an internal combustion engine according to the requirements. A difference DLTA in an opening TA of a sub-throttle valve 34 within a preset time period is determined (steps S100 through S130) and then compared with a predetermined range allowing to be driven by a stepping motor 32 (step S140). The sub-throttle valve 34 is pressed in a full-opening direction by means of a spring 54. In case of a step-out of the stepping motor 32, the sub-throttle valve 34 is abruptly driven in a full-closing direction by the spring 54. When an abrupt change of the sub-throttle valve 34 is detected, a process under abnormal conditions (abnormality process) including reduction of fuel injection is implemented (step S160). However, when a manifold negative pressure is not abruptly changed while an abnormal condition of the stepping motor 32 is detected, the abnormality process may not be executed since no abrupt variation in the air intake is expected. When an abrupt change in the manifold negative pressure is detected, on the other hand, an ISC valve is closed to compensate for the abrupt change.

    摘要翻译: 本发明的新型装置通过致动器的异常状态检测异常行驶状态,其中通过弹簧以全开方向按压全副开启方向的副节流阀在全开方向上突然驱动,并且控制 内燃机根据要求。 确定在预设时间段内的副节流阀34的开度TA中的差值DLTA(步骤S100至S130),然后与允许由步进电机32驱动的预定范围进行比较(步骤S140)。 副节气门34通过弹簧54在全开方向上被按压。在步进电动机32的步进的情况下,副节气门34在全闭合方向上突然被驱动 弹簧54.当检测到副节流阀34的突然变化时,执行包括减少燃料喷射的异常状态(异常处理)的处理(步骤S160)。 然而,当检测到步进电动机32的异常状态时歧管负压没有突然改变时,可能不执行异常处理,因为不期望进气的突然变化。 另一方面,当检测到歧管负压的突然变化时,关闭ISC阀以补偿突变。

    Combustion control system for internal combustion engine adaptable to on
and off of exhaust gas recirculation
    6.
    发明授权
    Combustion control system for internal combustion engine adaptable to on and off of exhaust gas recirculation 失效
    内燃机燃烧控制系统适用于排气再循环的开关

    公开(公告)号:US4947820A

    公开(公告)日:1990-08-14

    申请号:US307752

    申请日:1989-02-08

    申请人: Naoto Kushi

    发明人: Naoto Kushi

    摘要: A combustion control system for an internal combustion engine operable with the exhaust gas recirculation, the control system determining a basic quantity of engine combustion control such as a basic amount of fuel injection and/or ignition timing based upon the intake pressure of the engine, wherein the amount of fuel injection and/or the ignition timing is modified when the engine is operating with the exhaust gas recirculation starting with a time delay from the time point of switching on of an exhaust gas recirculation on-off valve, the time delay being variably controlled according to an operational condition of the engine such as the difference between atmospheric pressure and the intake pressure or the ratio of the intake pressure to atmosheric pressure.

    摘要翻译: 一种用于内燃机的燃烧控制系统,其可与废气再循环一起操作,所述控制系统基于所述发动机的进气压力来确定发动机燃烧控制的基本量,例如燃料喷射的基本量和/或点火正时,其中 当发动机从排气再循环开关阀的接通时间开始的时间延迟以废气再循环运行时,改变燃料喷射量和/或点火正时,时间延迟是可变的 根据发动机的运行状况进行控制,例如大气压力与进气压力的差异或进气压力与大气压力的比值。

    Arithmetic unit for determining a target position for a throttle of an
internal combustion engine
    7.
    发明授权
    Arithmetic unit for determining a target position for a throttle of an internal combustion engine 失效
    用于确定内燃机的节气门的目标位置的算术单元

    公开(公告)号:US5541844A

    公开(公告)日:1996-07-30

    申请号:US493057

    申请日:1995-06-21

    摘要: The present invention refers to a map for operation. The map of the invention represents an absolute value TDST of a difference between a first valve opening ratio TAM of a main throttle valve (35) and a second valve opening ratio TAS of a sub-throttle valve (37) plotted against a restriction value TA, which is the smaller of TAM and TAS. A conventional map requires a high precision around a line of TAM=TAS, that is, in the whole area of the map. The map of the invention, on the other hand, requires a high precision only in a specific range of the absolute value TDST, and allows sparse graduations of the map in an area other than the specific range. This effectively reduces data volume of the map and allows quick reference of the map. More specifically, the present invention determines a corresponding single-valve opening ratio TAA of a dual-valve throttle unit according to the first valve opening ratio TAM of the main throttle valve (35) and the second valve opening ratio TAS of the sub-throttle valve (37) by referring to the map. This method can reduce data volume of the map with out lowering the precision of operation.

    摘要翻译: 本发明涉及用于操作的地图。 本发明的映射表示主节流阀(35)的第一阀开启比率TAM与副节流阀(37)的第二阀开启比率TAS与限制值TA之间的差的绝对值TDST ,这是TAM和TAS中较小的一个。 常规地图需要在TAM = TAS线周围的高精度,即在地图的整个区域。 另一方面,本发明的地图仅在绝对值TDST的特定范围内要求高精度,并且允许在特定范围以外的区域中的稀疏刻度。 这有效地减少了地图的数据量,并允许快速参考地图。 更具体地说,本发明根据主节气门(35)的第一阀开度比TAM和副节流阀(35)的第二阀开度比TAS来确定双阀节流单元的相应单阀开启比TAA 阀门(37)参照地图。 该方法可以降低地图的数据量,降低运算精度。

    Controller for a step motor
    8.
    发明授权
    Controller for a step motor 失效
    步进电机控制器

    公开(公告)号:US5389866A

    公开(公告)日:1995-02-14

    申请号:US47277

    申请日:1993-04-19

    摘要: A controller for a step motor which permits the actual step number of the step motor to properly follow up the target step number may be varied with time. The controller temporarily determines a duration shorter than an actually derived duration, and checks the target step number again when the temporarily determined duration has elapsed. If the target step number has not changed, the actually derived duration is considered as a finally determined duration, while, if the target step number has changed, the duration of energization is re-derived from the changed target step number.

    摘要翻译: 用于步进电动机的控制器,其允许步进电动机的实际步数适当地跟随目标步骤号可以随时间变化。 控制器暂时确定比实际导出的持续时间短的持续时间,并且当临时确定的持续时间已经过去时,再次检查目标步数。 如果目标步数没有改变,则实际导出的持续时间被认为是最终确定的持续时间,而如果目标步数已经改变,则从改变的目标步数重新导出激励持续时间。

    Ignition system and method for internal combustion engine
    9.
    发明授权
    Ignition system and method for internal combustion engine 失效
    内燃机点火系统及方法

    公开(公告)号:US5136996A

    公开(公告)日:1992-08-11

    申请号:US703483

    申请日:1991-05-21

    摘要: An ignition system is provided for an internal combustion engine in which an amount of fuel necessary for combustion during one combustion and expansion stroke in one cycle of the internal combustion engine is injected toward respective cylinders, and the fuel is sucked, together with air, into the cylinders during respective suction strokes. The engine has a fuel cut control in which a fuel injection is cut off when the internal combustion engine is working under a predetermined condition. The ignition system includes a first unit for igniting mixtures of fuel and air in the respective cylinders in respective combustion and expansion strokes, and a second unit for detecting a cylinder into which the amount of fuel necessary for combustion has not yet been sucked completely when the fuel cut control ends. Also, the ignition system includes a third unit for controlling the first unit so that the mixture of fuel and air in the cylinder specified by the second unit is prevented from being ignited. There is also provided an ignition method.

    摘要翻译: 为内燃机提供点火系统,其中在内燃机的一个循环中的一个燃烧和膨胀冲程期间燃烧所需的燃料量被注入各个气缸,并且燃料与空气一起被吸入 在相应的吸入冲程期间的气缸。 发动机具有燃料切断控制,其中当内燃机在预定条件下工作时燃料喷射被切断。 点火系统包括用于在相应的燃烧和膨胀冲程中点燃各个气缸中的燃料和空气的混合物的第一单元,以及用于检测燃料所需燃料量尚未被完全吸入的气缸的第二单元 燃油切割控制结束。 此外,点火系统包括用于控制第一单元的第三单元,使得防止由第二单元指定的气缸中的燃料和空气的混合物被点燃。 还提供了点火方法。

    Air-fuel ratio control apparatus and method for internal combustion engine
    10.
    发明授权
    Air-fuel ratio control apparatus and method for internal combustion engine 失效
    用于内燃机的空燃比控制装置和方法

    公开(公告)号:US06298839B1

    公开(公告)日:2001-10-09

    申请号:US09564283

    申请日:2000-05-04

    IPC分类号: F02D4114

    CPC分类号: F02D41/18 F02D41/1456

    摘要: An air-fuel ratio control apparatus performs an intake air-increasing process based on a region of an air-fuel ratio feedback adjustment coefficient FAF in which the adjustment coefficient decreases the fuel concentration in an air-fuel mixture. The apparatus calculates a fuel injection valve open duration TAU by using a newly calculated air-fuel ratio feedback adjustment coefficient FAFx, instead of using an adjustment coefficient FAF. An air-fuel ratio-increasing feedback adjustment coefficient FVLV in the adjustment coefficient FAFx has a value that cancels an increase in the amount of intake air. Therefore, the fuel injection amount is increased only when the fuel concentration in the mixture is an intake air-increasing process. Hence, torque difference between fuel concentration-increasing and concentration-decreasing control becomes smaller.

    摘要翻译: 空燃比控制装置基于调节系数降低空气 - 燃料混合物中的燃料浓度的空燃比反馈调节系数FAF的区域进行进气增加处理。 该装置使用新计算的空燃比反馈调节系数FAFx来计算燃料喷射阀打开持续时间TAU,而不是使用调整系数FAF。 调整系数FAFx中的空燃比增加反馈调整系数FVLV具有抵消进气量增加的值。 因此,仅当混合物中的燃料浓度为进气增加过程时,燃料喷射量才增加。 因此,燃料浓度增加与浓度降低控制之间的转矩差变小。