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1. 发明授权

US08113989B2 Control of sequential downshifts in a transmission 有权
标题翻译：传输中顺序降档的控制
公开(公告)号：US08113989B2
公开(公告)日：2012-02-14
申请号：US12243998
申请日：2008-10-02
申请人： Kevin MacFarlane , Timothy Merlino , Than Pham , Barbara Anne Hartline , Michael Tarrant
发明人： Kevin MacFarlane , Timothy Merlino , Than Pham , Barbara Anne Hartline , Michael Tarrant
IPC分类号： F16H61/00 , B60W10/02
CPC分类号： F16H61/061 , F16H2061/0444 , F16H2306/14 , F16H2306/24 , Y10T477/6937 , Y10T477/69373
摘要： A method for executing a downshift in a transmission includes starting disengagement of a second control element after starting disengagement of a first element. Disengagement of the second element starts before starting engagement of a fourth element. A third element is forced to synchronous speed by beginning engagement of the fourth element before engaging the third element. Engagement of the third and fourth elements is completed at the end of the downshift.
摘要翻译：用于执行变速器中的降档的方法包括在开始脱离第一元件之后开始脱离第二控制元件。第二个元素的脱离开始，然后开始第四个元素的参与。通过在接合第三元件之前开始接合第四元件，第三元件被强制为同步速度。第三和第四要素的接合在降档结束时完成。

2. 发明申请

US20100087293A1 CONTROL OF SEQUENTIAL DOWNSHIFTS IN A TRANSMISSION 有权
标题翻译：控制传输中的顺序传递
公开(公告)号：US20100087293A1
公开(公告)日：2010-04-08
申请号：US12243998
申请日：2008-10-02
申请人： Kevin MacFarlane , Timothy Merlino , Than Pham , Barbara Anne Hartline , Michael Tarrant
发明人： Kevin MacFarlane , Timothy Merlino , Than Pham , Barbara Anne Hartline , Michael Tarrant
IPC分类号： F16H61/08
CPC分类号： F16H61/061 , F16H2061/0444 , F16H2306/14 , F16H2306/24 , Y10T477/6937 , Y10T477/69373
摘要： A method for executing a downshift in a transmission includes starting disengagement of a second control element after starting disengagement of a first element. Disengagement of the second element starts before starting engagement of a fourth element. A third element is forced to synchronous speed by beginning engagement of the fourth element before engaging the third element. Engagement of the third and fourth elements is completed at the end of the downshift.
摘要翻译：用于执行变速器中的降档的方法包括在开始脱离第一元件之后开始脱离第二控制元件。第二个元素的脱离开始，然后开始第四个元素的参与。通过在接合第三元件之前开始接合第四元件，第三元件被强制为同步速度。第三和第四要素的接合在降档结束时完成。

3. 发明授权

US08398516B2 Avoiding coasting downshift torque reversal in an automatic transmission 失效
标题翻译：避免自动变速器中的降档扭矩反转
公开(公告)号：US08398516B2
公开(公告)日：2013-03-19
申请号：US11947251
申请日：2007-11-29
申请人： Mark A. Smith , Douglas R. Cecil , Michael Tarrant , Vince P. LaVoie
发明人： Mark A. Smith , Douglas R. Cecil , Michael Tarrant , Vince P. LaVoie
IPC分类号： B60W10/04
CPC分类号： F16H61/061 , F16H2061/064 , F16H2306/44 , F16H2306/52 , F16H2342/04 , Y10T477/638 , Y10T477/6388 , Y10T477/6937
摘要： A method for controlling a coast down downshift that is produced in an automatic transmission by disengaging an off-going control element and engaging an oncoming control element, including the steps of determining a first desired pressure magnitude of the off-going control element and a first desired pressure magnitude of the oncoming control element, executing the current downshift using said first desired pressure magnitudes, determining during execution of the current downshift corrections of said first desired pressure magnitudes that occur during the current downshift, determining a second desired pressure magnitude of the off-going control element and a second desired pressure magnitude of the oncoming control element, using said corrections and the second desired pressure magnitude to determine a subsequent desired pressure magnitude of the off-going control element and a subsequent desired pressure magnitude of the oncoming control element, and executing a downshift using said subsequent desired pressure magnitudes.
摘要翻译：一种用于控制在自动变速器中通过分离脱离控制元件并接合迎面而来的控制元件而产生的惯性降档的方法，包括以下步骤：确定脱离控制元件的第一期望压力幅度和第一确定迎接的控制元件的期望的压力幅度，使用所述第一期望压力幅度执行当前降档，在执行当前降档期间发生的所述第一期望压力幅度的当前降档校正期间确定关闭的第二期望压力幅度使用所述校正和第二期望压力幅度来确定后续控制元件的后续期望压力幅度和迎面而来的控制元件的后续期望压力幅度，并使用所述执行降档随后所需的压力大小。

4. 发明申请

US20090143196A1 Avoiding Coasting Downshift Torque Reversal in an Automatic Transmission 失效
标题翻译：避免在自动变速器中降档降档扭矩反转
公开(公告)号：US20090143196A1
公开(公告)日：2009-06-04
申请号：US11947251
申请日：2007-11-29
申请人： Mark A. Smith , Douglas R. Cecil , Michael Tarrant , Vince P. LaVoie
发明人： Mark A. Smith , Douglas R. Cecil , Michael Tarrant , Vince P. LaVoie
IPC分类号： F16H61/00
CPC分类号： F16H61/061 , F16H2061/064 , F16H2306/44 , F16H2306/52 , F16H2342/04 , Y10T477/638 , Y10T477/6388 , Y10T477/6937
摘要： A method for controlling a coast down downshift that is produced in an automatic transmission by disengaging an off-going control element and engaging an oncoming control element, including the steps of determining a first desired pressure magnitude of the off-going control element and a first desired pressure magnitude of the oncoming control element, executing the current downshift using said first desired pressure magnitudes, determining during execution of the current downshift corrections of said first desired pressure magnitudes that occur during the current downshift, determining a second desired pressure magnitude of the off-going control element and a second desired pressure magnitude of the oncoming control element, using said corrections and the second desired pressure magnitude to determine a subsequent desired pressure magnitude of the off-going control element and a subsequent desired pressure magnitude of the oncoming control element, and executing a downshift using said subsequent desired pressure magnitudes.
摘要翻译：一种用于控制在自动变速器中通过分离脱离控制元件并接合迎面而来的控制元件而产生的惯性降档的方法，包括以下步骤：确定脱离控制元件的第一期望压力幅度和第一确定迎接的控制元件的期望的压力幅度，使用所述第一期望压力幅度执行当前降档，在执行当前降档期间发生的所述第一期望压力幅度的当前降档校正期间确定关闭的第二期望压力幅度使用所述校正和第二期望压力幅度来确定后续控制元件的后续期望压力幅度和迎面而来的控制元件的后续期望压力幅度，并使用所述执行降档随后所需的压力大小。

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