Engine idle speed control device
    1.
    发明授权
    Engine idle speed control device 有权
    发动机怠速控制装置

    公开(公告)号:US07169078B2

    公开(公告)日:2007-01-30

    申请号:US11066257

    申请日:2005-02-28

    IPC分类号: F16H59/74

    摘要: An engine idle speed control device set a target idle speed NsetN for a non-traveling range is set to a high value to activate the catalytic converter early, after the engine is started. Upon detecting that the automatic transmission has been shifted from a non-traveling range to a traveling range, the target idle speed is lowered to a first traveling idle speed Nset1. A feedback gain G used for feedback control of the ignition timing is then set to a larger gain value. The larger gain value is set such that it varies based on the temperature of the automatic transmission fluid or other parameter indicative of the engine friction and/or automatic transmission friction. As a result, the ignition timing is retarded in a precise manner, the engine speed is reduced, and the clutch engagement shock is reduced.

    摘要翻译: 发动机怠速控制装置将用于非行驶范围的目标怠速转速NsetN设定为高值,以在发动机启动后尽早地启动催化转化器。 当检测到自动变速器已经从非行驶范围转移到行驶范围时,目标怠速降低到第一行驶空转速度Nset 1。 然后将用于点火正时反馈控制的反馈增益G设置为较大的增益值。 较大的增益值被设定为使得其基于自动变速器油的温度或指示发动机摩擦和/或自动变速器摩擦的其它参数而变化。 结果,点火正时被精确地延迟,发动机转速降低,离合器接合冲击降低。

    Engine idle speed control device
    2.
    发明申请
    Engine idle speed control device 有权
    发动机怠速控制装置

    公开(公告)号:US20050188953A1

    公开(公告)日:2005-09-01

    申请号:US11066257

    申请日:2005-02-28

    摘要: An engine idle speed control device set a target idle speed NsetN for a non-traveling range is set to a high value to activate the catalytic converter early, after the engine is started. Upon detecting that the automatic transmission has been shifted from a non-traveling range to a traveling range, the target idle speed is lowered to a first traveling idle speed Nset1. A feedback gain G used for feedback control of the ignition timing is then set to a larger gain value. The larger gain value is set such that it varies based on the temperature of the automatic transmission fluid or other parameter indicative of the engine friction and/or automatic transmission friction. As a result, the ignition timing is retarded in a precise manner, the engine speed is reduced, and the clutch engagement shock is reduced.

    摘要翻译: 发动机怠速控制装置将用于非行驶范围的目标怠速转速NsetN设定为高值,以在发动机启动后尽早地启动催化转化器。 当检测到自动变速器已经从非行驶范围转移到行驶范围时,目标怠速降低到第一行驶空转速度Nset 1。 然后将用于点火正时反馈控制的反馈增益G设置为较大的增益值。 较大的增益值被设定为使得其基于自动变速器油的温度或指示发动机摩擦和/或自动变速器摩擦的其它参数而变化。 结果,点火正时被精确地延迟,发动机转速降低,离合器接合冲击降低。

    Engine idle speed control device
    3.
    发明授权
    Engine idle speed control device 有权
    发动机怠速控制装置

    公开(公告)号:US07141000B2

    公开(公告)日:2006-11-28

    申请号:US11043939

    申请日:2005-01-28

    IPC分类号: B60W10/06 B60W10/10

    摘要: An engine idle speed control device set a target idle speed NsetN for a non-traveling range is set to a high value to activate the catalytic converter early, after the engine is started. Upon detecting that the automatic transmission has been shifted from a non-traveling range to a traveling range, the target idle speed is lowered to a first traveling idle speed Nset1 for a prescribed period (200 ms). After the prescribed period elapses, the target idle speed is lowered even further to a second traveling target idle speed Nset2. When the target idle speed is set to the first traveling target idle speed Nset1, the ignition timing retardation amount RET is set in accordance with the actual engine rotational speed Ne in such a fashion that the higher the engine rotational speed Ne is, the more the ignition timing ADV is retarded.

    摘要翻译: 发动机怠速控制装置将用于非行驶范围的目标怠速转速NsetN设定为高值,以在发动机启动后尽早地启动催化转化器。 在检测到自动变速器已经从非行驶范围移动到行驶范围时,目标怠速速度降低到第一行驶怠速速度Nset 1达规定时间段(200ms)。 经过规定时间后,目标怠速进一步降低到第二行驶目标怠速Nset2。 当目标空转速度被设定为第一行驶目标怠速Nset 1时,根据实际的发动机转速Ne来设定点火正时延迟量RET,使得发动机转速Ne越高, 点火正时ADV延迟。

    Engine idle speed control device
    4.
    发明申请
    Engine idle speed control device 有权
    发动机怠速控制装置

    公开(公告)号:US20050187069A1

    公开(公告)日:2005-08-25

    申请号:US11043939

    申请日:2005-01-28

    IPC分类号: F02D41/02 F02P5/15 F16H59/74

    摘要: An engine idle speed control device set a target idle speed NsetN for a non-traveling range is set to a high value to activate the catalytic converter early, after the engine is started. Upon detecting that the automatic transmission has been shifted from a non-traveling range to a traveling range, the target idle speed is lowered to a first traveling idle speed Nset1 for a prescribed period (200 ms). After the prescribed period elapses, the target idle speed is lowered even further to a second traveling target idle speed Nset2. When the target idle speed is set to the first traveling target idle speed Nset1, the ignition timing retardation amount RET is set in accordance with the actual engine rotational speed Ne in such a fashion that the higher the engine rotational speed Ne is, the more the ignition timing ADV is retarded.

    摘要翻译: 发动机怠速控制装置将用于非行驶范围的目标怠速转速NsetN设定为高值,以在发动机启动后尽早地启动催化转化器。 当检测到自动变速器已经从非行驶范围移动到行驶范围时,目标怠速速度降低到第一行驶怠速速度Nset1一段规定的时间(200ms)。 经过规定时间后,目标怠速进一步降低到第二行驶目标怠速Nset2。 当目标怠速被设定为第一行驶目标怠速Nset1时,根据实际的发动机转速Ne来设定点火正时延迟量RET,使得发动机转速Ne越高, 点火正时ADV延迟。