Throttle valve control device
    1.
    发明授权
    Throttle valve control device 失效
    节流阀控制装置

    公开(公告)号:US6089535A

    公开(公告)日:2000-07-18

    申请号:US991253

    申请日:1997-12-16

    IPC分类号: F02D11/10 F02D41/22 F02D45/00

    摘要: The throttle valve control device of this invention controls a throttle based on outputs of a position sensor including a first sensor and a second sensor which detect a position of a same object, wherein the output of the first sensor and the output of the second sensor change opposite to each other depending on a change in the position of the object, and the throttle valve control device determines the position sensor abnormal when a variation in the output of the first sensor is equal to or greater than a first threshold value and a variation in the output of the second sensor is equal to or greater than a second threshold value.

    摘要翻译: 本发明的节气门控制装置基于包括检测同一物体的位置的第一传感器和第二传感器的位置传感器的输出来控制节气门,其中第一传感器的输出和第二传感器的输出改变 取决于物体位置的变化彼此相对,并且当第一传感器的输出的变化等于或大于第一阈值和变化时,节气门控制装置确定位置传感器异常 第二传感器的输出等于或大于第二阈值。

    Cruise control system for a vehicle
    2.
    发明授权
    Cruise control system for a vehicle 失效
    车辆巡航控制系统

    公开(公告)号:US4814991A

    公开(公告)日:1989-03-21

    申请号:US70244

    申请日:1987-07-06

    CPC分类号: B60K31/107

    摘要: A cruise control system for a vehicle having an internal combustion engine provided with a throttle valve operated by a diaphragm actuator irrespective of a depression of an accelerator pedal by an operator of the vehicle. The system is provided with a system for controlling a vehicle speed in a so-called "dead zone" where hunting usually occurs if a normal feedback control is executed. A time-interval integrating unit is provided for integrating the deviation of the acutal speed with respect to the target speed with a time interval as well as a weight factor, so that the integrated value corresponds to the change in the deviation in the dead zone. The integrated value is compared with a predetermined value corresponding to a change in the vehicle speed which is obtainable when the least significant bit in the control signal output to the actuator is changed. When the integrated value becomes equal to or higher than the predetermined value, the least significant bit is incremented or decremented, and thus speed control in the "dead zone" becomes possible.

    摘要翻译: 一种用于车辆的巡航控制系统,其具有设置有由隔膜致动器操作的节气门的内燃机,而不管车辆的操作者是否加速踏板的下压。 该系统设置有用于在所谓的“死区”中控制车速的系统,其中如果执行正常的反馈控制,通常会发生通常发生的猎杀。 提供了一个时间间隔积分单元,用于以时间间隔和权重因子积分相对于目标速度的速度偏差,使得积分值对应于死区中偏差的变化。 将积分值与对应于当输出到致动器的控制信号中的最低有效位改变时可获得的车速的变化相对应的预定值进行比较。 当积分值变得等于或高于预定值时,最低有效位被递增或递减,因此“死区”中的速度控制变得可能。

    Automotive constant speed cruise control system
    4.
    发明授权
    Automotive constant speed cruise control system 失效
    汽车恒速巡航控制系统

    公开(公告)号:US4984166A

    公开(公告)日:1991-01-08

    申请号:US348098

    申请日:1989-05-02

    IPC分类号: B60K31/10 F16H59/08

    CPC分类号: B60K31/107 F16H2059/083

    摘要: An automotive constant speed cruise control system for a vehicle comprises a controller for automatic speed change for changing over automatically speed stage in a transmission by a relation between a throttle valve opening degree and a car speed, a controller for constant speed traveling having a constant speed traveling control function for cruising a car at a target car speed by controlling based on a duty ratio the throttle valve opening degree according to a traveling car speed and a transmission limiting function for sending out a signal for prohibiting selection of maximum speed stage in the transmission to the controller for automatic speed change for a specified time when the car speed lowers, and the transmission limiting function capable of being started from outside by inputting a speed change signal representing that the transmission is shifted down from a maximum speed to the controller for constant speed traveling.

    摘要翻译: 一种用于车辆的汽车恒速巡航控制系统包括:用于通过节气门开度和轿厢速度之间的关系在变速器中自动转换速度级的自动变速控制器,具有恒定速度的恒速行驶控制器 通过根据行驶车速度的节气门开度的占空比进行控制,以及用于发送用于禁止在变速器中选择最大速度级的信号的发送限制功能,以目标轿厢速度巡航汽车的行驶控制功能 控制器在汽车速度降低时指定时间内自动变速,并且能够通过将表示变速器从最大速度向下移动到控制器的速度变换信号输入到外部的传动限制功能来保持恒定 速度旅行。

    Constant speed cruise control system of the duty ratio control type
    5.
    发明授权
    Constant speed cruise control system of the duty ratio control type 失效
    恒速巡航控制系统的占空比控制型

    公开(公告)号:US4870583A

    公开(公告)日:1989-09-26

    申请号:US948134

    申请日:1986-12-29

    IPC分类号: B60K31/10

    CPC分类号: B60K31/107

    摘要: A constant speed cruise control system of duty ratio control type for approximating an actual car speed to a stored target car speed, by on/off control of a control valve of an actuator to adjust the throttle valve opening degree by an output duty ratio D obtained from a control line having a gradient showing a conversion characteristic of car speed and duty ratio.The system has a controller in whicha set duty ratio DS corresponding to the target car speed is calculated asSD=SD1+(DM-SD1)/nand the output duty ratio D is calculated asD=G.times.V+SDwhereG: gradient of control lineV: car speed deviationDM: integrating element responding quickly to duty ratio changeSD1: integrating element responding slowly to duty ratio changen: coefficientand the controller corrects to integrate the set duty ratio SD in a direction of approximating the output duty ratio D.

    摘要翻译: 通过对执行器的控制阀的开/关控制将节气门开度调整为所获得的输出占空比D,将占空比控制类型的恒速巡航控制系统用于将实际轿厢速度逼近存储的目标轿厢速度 从具有示出轿厢速度和占空比的转换特性的梯度的控制线。 该系统具有控制器,其中将与目标轿厢速度相对应的设定占空比DS计算为SD = SD1 +(DM-SD1)/ n,并且输出占空比D被计算为D = GxV + SD,其中G: 控制线V:车速偏差DM:快速响应占空比变化的积分元件SD1:缓慢响应于占空比变化的积分元件n:系数,控制器校正将设定占空比SD集成在近似输出占空比的方向 D.

    Automatic speed control apparatus for controlling vehicle speed at set
speed
    7.
    发明授权
    Automatic speed control apparatus for controlling vehicle speed at set speed 失效
    用于以设定速度控制车速的自动速度控制装置

    公开(公告)号:US4862367A

    公开(公告)日:1989-08-29

    申请号:US154310

    申请日:1988-02-10

    摘要: An automatic speed control apparatus for controlling the running speed of a vehicle at a constant set speed includes an auxiliary intake passage providing direct communication between portions of a main intake passage upstream and downstream from a throttle valve so as to bypass the throttle valve, an auxiliary intake air valve adapted for controlling the flow rate of air in the auxiliary intake passage, and a fuel supply cut-off means for suspending the supply of fuel to the engine from a moment at which a fuel supply cut-off condition is met, which requires the throttle valve to be set at the minimum opening position and the engine speed to be higher than a predetermined fuel supply cut-off engine speed, until the moment at which a predetermined fuel supply recovery condition is met. An actuator for actuating the throttle valve is controlled so as to vary the degree of opening degree of the throttle valve and enable the vehicle to run at the constant set speed. The auxiliary intake air valve is controlled in such a manner that the flow rate of air in the auxiliary intake passage is reduced before the fuel supply cut-off condition is met during motion of the vehicle under the control of the automatic driving apparatus. The rate of fuel supply to the engine has therefore been reduced before the fuel supply is actually cut-off so that the amount of change in the engine output torque and, hence, the level of shock produced by the change in the engine output torque are reduced when cut-off of the fuel supply is executed.

    摘要翻译: 用于以恒定的设定速度控制车辆的行驶速度的自动速度控制装置包括辅助进气通道,其在主进气道的节流阀上游和下游的部分之间直接连通,以便绕过节流阀,辅助进气通道 适于控制辅助进气通道中的空气流量的进气阀,以及用于将燃料供应暂停到发动机的燃料供应切断条件的时刻,燃料供给切断装置 需要将节流阀设定在最小打开位置,并将发动机转速设定为高于预定的燃料供给截止发动机转速,直到满足预定燃料供应恢复条件的时刻为止。 控制用于致动节流阀的致动器,以便改变节流阀的开度,并使车辆以恒定的设定速度运行。 控制辅助进气阀,使得在自动驾驶装置的控制下在车辆运动期间满足燃料供应切断条件之前,辅助进气通道中的空气流量减小。 因此,在实际切断燃料供应之前,发动机的燃料供给量已经降低,使得发动机输出转矩的变化量以及由发动机输出转矩变化产生的冲击水平是 执行燃料供应的切断时减少。

    Cruise control system for a vehicle
    8.
    发明授权
    Cruise control system for a vehicle 失效
    车辆巡航控制系统

    公开(公告)号:US4803637A

    公开(公告)日:1989-02-07

    申请号:US70188

    申请日:1987-07-06

    IPC分类号: B60K31/10 B60K31/00

    CPC分类号: B60K31/107

    摘要: A cruise control system for a vehicle having an internal combustion engine is provided with a throttle valve operated by a diaphragm actuator irrespective of a depression of an accelerator pedal by an operator of the vehicle. The system is provided with a control circuit for controlling an electric signal applied to the actuator. A fixed level signal is first applied to the actuator for a short period after a cruise mode operation has commenced, so that the diaphragm is quickly moved to prevent a temporary decrease in the vehicle speed. After the elapse of the predetermined time, the level of the electric signal is controlled by feedback so that the vehicle speed is controlled to a target speed. A feedback gain initially has a first value for a period after the feedback control is commenced and then has a second value which is smaller than the first value. Furthermore, the feedback gain may have a third value at a transient state from a condition where the feedback gain has the first value and a condition where the feedback gain has the second value.

    摘要翻译: 具有内燃机的车辆的巡航控制系统设置有由隔膜致动器操作的节气门,而不管车辆的操作者是否加速踏板的下压。 该系统设置有用于控制施加到致动器的电信号的控制电路。 在巡航模式操作开始之后,固定电平信号首先施加到致动器短时间段,使得隔膜快速移动以防止车辆速度的暂时降低。 在经过预定时间之后,通过反馈来控制电信号的电平,使得车速被控制到目标速度。 反馈增益最初在反馈控制开始之后的一段时间内具有第一值,然后具有小于第一值的第二值。 此外,反馈增益可以在反馈增益具有第一值的条件和反馈增益具有第二值的条件下在瞬态状态下具有第三值。