Process planning method, process planning apparatus and recording medium
    41.
    发明授权
    Process planning method, process planning apparatus and recording medium 有权
    流程规划方法,流程规划设备和记录介质

    公开(公告)号:US07487005B2

    公开(公告)日:2009-02-03

    申请号:US11253672

    申请日:2005-10-20

    IPC分类号: G06F19/00 G05B19/4093

    摘要: A process planning apparatus extracts a region to be machined based on the difference of the shape data before and after machining of the workpiece, replaces the extracted region into combinations of the predetermined machining features, allocates a predetermined fixed cycle to each of the replaced machining features, and applies an assessment function relating to a machining time and a life of the end mill to each of the combinations of the machining features to which the fixed cycles are respectively allocated, thereby selecting a group of the fixed cycles which makes an assessment value obtained by the assessment function optimum as the optimal process. By these steps, it becomes possible to design the process for causing the NC machine employing end mills as a cutting tool to perform a predetermined machining of a workpiece without relying on the experience of the designer, and without necessitating complicated work.

    摘要翻译: 工艺规划设备基于加工前后的形状数据的差异提取要加工的区域,将提取的区域替换为预定加工特征的组合,为每个替换的加工特征分配预定的固定循环 并且将与端铣刀的加工时间和寿命相关的评估功能应用于分别分配有固定循环的加工特征的各组合,从而选择获得了评估值的一组固定循环 通过评估函数最优化作为最优过程。 通过这些步骤,可以设计使采用立铣刀的NC机床作为切削工具进行工件的预定加工的过程,而不依赖于设计者的经验,并且不需要复杂的工作。

    Engine idling control device
    46.
    发明授权
    Engine idling control device 失效
    发动机怠速控制装置

    公开(公告)号:US06622697B2

    公开(公告)日:2003-09-23

    申请号:US09735483

    申请日:2000-12-14

    IPC分类号: F02D4108

    摘要: An engine idling control device includes a secondary air supply device, an intake gauge pressure detecting unit and a secondary air supply control unit. The secondary air supply device is disposed on a bypass intake passage communicating with an intake pipe and bypassing a throttle valve. The intake gauge pressure detecting unit detects an intake gauge pressure on the intake pipe side. The secondary air supply control unit controls the secondary air supply device so as to open and close the bypass intake passage when an engine is in an idling state. The secondary air supply device is controlled to obtain the optional opening value. The secondary air supply control unit controls such that the secondary air supply device increases the opening value when the intake gauge pressure becomes higher than a predetermined low load condition in an idling state.

    摘要翻译: 发动机怠速控制装置包括二次空气供给装置,进气表压力检测单元和二次空气供给控制单元。 二次空气供给装置设置在与进气管连通并绕过节流阀的旁通进气通路上。 进气表压力检测单元检测进气管侧的进气表压。 二次空气供给控制单元控制二次空气供给装置,以在发动机处于空转状态时打开和关闭旁通进气通道。 控制二次空气供给装置以获得可选的开启值。 二次空气供给控制单元进行控制,使得二次空气供给装置在进气表压力高于空转状态下的规定的低负载状态时增大开度值。

    Vaporized fuel treatment apparatus of internal combustion engine
    49.
    发明授权
    Vaporized fuel treatment apparatus of internal combustion engine 失效
    内燃机汽化燃油处理装置

    公开(公告)号:US06478015B2

    公开(公告)日:2002-11-12

    申请号:US09739250

    申请日:2000-12-19

    IPC分类号: F02M3302

    摘要: In order to prevent an occurrence of dieseling phenomenon, and to prevent engine rotation speed from decreasing during idle operation or the idle operation from being stopped, in step S111, it is determined whether the flag value of an idle stop flag F_IDLSTP is “1” or not. If it is determined that the determination result is “YES”, that is, if it is determined that the internal combustion engine body is stopped, 0% is set to a target purge control valve drive duty value PGCMD (step S105), and 0 is set to the target purge flow rate QPGC (step S106). If it is determined that the determination result is “NO”, that is, when the internal combustion engine body is in operation, PGCMD calculation processing is executed (step S112). While the internal combustion engine body is stopped, execution of purge is stopped, thereby an occurrence of a dieseling phenomenon which is caused because the flow rate of the air flowing into the internal combustion engine body increases and the air is compressed, is prevented, thereby suppressing vibration from occurring in the internal combustion engine body.

    摘要翻译: 为了防止发生故障现象,为了防止发动机转速在怠速运转或怠速运转中停止,在步骤S111中,判断怠速停止标志F_IDLSTP的标志值是否为“1” 或不。 如果确定结果为“是”,即如果确定内燃机主体停止,则将0%设定为目标净化控制阀驱动占空比值PGCMD(步骤S105),并且将0 被设定为目标吹扫流量QPGC(步骤S106)。 如果确定结果为“否”,即当内燃机主体运行时,执行PGCMD计算处理(步骤S112)。 当内燃机主体停止时,停止吹扫的执行,从而防止由于流入内燃机主体的空气的流量增加并且空气被压缩而引起的排污现象的发生,由此 抑制在内燃机主体中发生振动。

    Air-fuel ratio control apparatus
    50.
    发明授权
    Air-fuel ratio control apparatus 失效
    空燃比控制装置

    公开(公告)号:US06435171B2

    公开(公告)日:2002-08-20

    申请号:US09736400

    申请日:2000-12-15

    IPC分类号: F02B7508

    摘要: The present invention increases the frequency of the LAF sensor deterioration determination in the case that air-fuel ratio control is being carried out while the deterioration of the LAF sensor is being monitored. When the monitor conditions are no longer satisfied during the deterioration determination of the LAF sensor (as shown in (a) and (b) of FIG. 6), the LAF prohibition timer is operated (as shown in (c) of FIG. 6), and switching to a lean burn is prohibited for a predetermined time interval (for example, 7 seconds), and in addition, after the LAF sensor deterioration determination has completed, after passage of a time interval shorter than this predetermined time interval (for example, 2 seconds) (as shown in figures (c) and (d) of FIG. 6), a lean burn is permitted. Thereby, in the case that monitor conditions are no longer satisfied during monitoring, because the lean burn is prohibited, unlike conventional technology, there is no immediate switch to a lean burn, and therefore, the frequency of the deterioration determination of the LAF sensor can be increased.

    摘要翻译: 本发明在监视LAF传感器的劣化的同时进行空燃比控制的情况下,提高LAF传感器劣化判定的频率。 当在LAF传感器的劣化判定(如图6的(a)和(b)所示)中不再满足监视条件时,LAF禁止定时器被操作(如图6的(c)所示) ),并且在预定时间间隔(例如7秒)内禁止切换到稀燃,此外,在LAF传感器劣化判定结束后,经过比该预定时间间隔短的时间间隔(对于 例如2秒)(如图6(c)和(d)所示),允许稀燃。 因此,在监视期间不再满足监视条件的情况下,由于禁止稀燃,与传统技术不同,不存在立即切换到稀薄燃烧,因此LAF传感器的劣化判定的频率可以 增加。