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1. 发明授权

US10113635B2 Device reducing drag loss in an automatic transmission 有权
公开(公告)号：US10113635B2
公开(公告)日：2018-10-30
申请号：US15199013
申请日：2016-06-30
申请人： ZF Friedrichshafen AG
发明人： Markus Herrmann , Thilo Schmidt , Gerhard Martin , Ahmed Mouhcine , Rainer Grundler , Dirk Winkler , Valentine Vincent
IPC分类号： F16H57/04 , F16H61/14 , F16H61/48
摘要： A drag torque reduction device for an automatic transmission includes a hydraulic controller with a radiator. In one embodiment, the drag torque reduction device also includes a parallel connection of a pressure relief valve, a constant aperture and a temperature-dependent, switchable aperture positioned upstream of the radiator. In another embodiment, the drag torque reduction device includes an overflow cooling oil diversion with a temperature-dependent, switchable aperture and a pressure relief valve that is positioned upstream of the radiator.

2. 发明申请

US20170261091A1 Device Reducing Drag Loss in an Automatic Transmission 审中-公开
公开(公告)号：US20170261091A1
公开(公告)日：2017-09-14
申请号：US15199114
申请日：2016-06-30
申请人： ZF Friedrichshafen AG
发明人： Markus Herrmann , Thilo Schmidt , Gerhard Martin , Ahmed Mouhcine , Rainer Grundler , Dirk Winkler , Valentine Vincent
IPC分类号： F16H57/04 , F16K31/00 , F16H61/48 , F16H61/02 , F16H61/14
CPC分类号： F16H57/0412 , F16H59/72 , F16H61/0265 , F16H61/0267 , F16H61/14 , F16H61/48 , F16H2061/0037 , F16K31/002
摘要： A drag torque reduction device for an automatic transmission includes a hydraulic controller with a diversion for excess cooling oil into an oil sump that is positioned upstream of a radiator relative to a flow of fluid to the radiator. The diversion includes a temperature-dependent, switchable aperture and a switching valve. The temperature-dependent, switchable aperture is configured to close above a temperature threshold. The switching valve is configured to close above a threshold pressure.

3. 发明授权

US09476503B2 Method for operating an automatic transmission 有权
标题翻译：自动变速器的运行方法
公开(公告)号：US09476503B2
公开(公告)日：2016-10-25
申请号：US14412835
申请日：2013-06-04
申请人： ZF Friedrichshafen AG
发明人： Klaus Steinhauser , Valentine Vincent
IPC分类号： F16H3/44 , F16H61/08 , F16H61/04 , F16H61/686
CPC分类号： F16H61/08 , F16H61/0403 , F16H61/686 , F16H2061/0474 , F16H2200/0065 , F16H2200/0082 , F16H2200/2046 , F16H2200/2064 , F16H2200/2094
摘要： In a method for operating an automatic transmission having multiple frictional-locking shifting elements and at least one positive-locking shifting element, for the representation of a transmission ratio stage, at least three shifting elements are closed. For a shifting process between two specified transmission ratio stages, at least two shifting elements are opened and at least two shifting elements, including at least one positive-locking shifting element and at least one frictional-locking shifting element, are closed. In the chronological sequence of the shifting process, the closing of the positive-locking shifting element takes place only after all frictional-locking shifting elements are closed.
摘要翻译：在一种用于操作具有多个摩擦锁定移位元件和至少一个正向锁定移位元件的自动变速器的方法中，为了表示变速比级，至少三个变速元件被关闭。对于两个指定的传动比级之间的换档过程，打开至少两个换档元件，并且包括至少两个移动元件（包括至少一个正锁定移动元件和至少一个摩擦锁定移动元件）被关闭。按照换档过程的时间顺序，只有在所有摩擦锁定换档元件关闭之后，才能进行正锁定换档元件的关闭。

4. 发明授权

US11913506B2 Method for the open-loop control of an electrically controllable valve in a vehicle transmission 有权
公开(公告)号：US11913506B2
公开(公告)日：2024-02-27
申请号：US18330804
申请日：2023-06-07
申请人： ZF Friedrichshafen AG
发明人： Anton Fritzer , Thilo Schmidt , Andreas Schmidt , Valentine Vincent , Christoph Köhler , Jonas Knör , Michael Miller , Mario Hasel , Jakob Mayer , Christian Hunger , Fabian Schöniger
IPC分类号： F16D48/06 , F16H61/06 , F16H61/00
CPC分类号： F16D48/066 , F16D2500/1027 , F16D2500/10412 , F16D2500/3024 , F16D2500/3025 , F16H61/0021 , F16H61/061
摘要： A vehicle transmission includes a hydraulic circuit and a control unit. The control unit is configured to: obtain (20) a target pressure specification; convert (26) the target pressure specification into a target volume flow rate; determine (42) a valve volume flow rate as a function of the target volume flow rate and as a function of parameters that represent system properties of the hydraulic circuit; determine (46) a pressure drop at a valve due to flow forces as a function of the valve volume flow rate; determine (48) a compensated valve output pressure as a function of the valve volume flow rate and the pressure drop; determine (58) the electric control current as a function of the compensated valve output pressure; and activate a valve with the electric control current.

5. 发明申请

US20150167838A1 Method for Operating an Automatic Transmission 有权
标题翻译：自动变速箱运行方法
公开(公告)号：US20150167838A1
公开(公告)日：2015-06-18
申请号：US14412835
申请日：2013-06-04
申请人： ZF Friedrichshafen AG
发明人： Klaus Steinhauser , Valentine Vincent
IPC分类号： F16H61/08 , F16H61/686
CPC分类号： F16H61/08 , F16H61/0403 , F16H61/686 , F16H2061/0474 , F16H2200/0065 , F16H2200/0082 , F16H2200/2046 , F16H2200/2064 , F16H2200/2094
摘要： In a method for operating an automatic transmission (1), comprising multiple frictional-locking shifting elements (B, C, D, E) and at least one positive-locking shifting element (A, F), whereas, for the representation of a transmission ratio stage and thus a power flow through the automatic transmission (1), at least three shifting elements are closed, whereas, for a shifting process between two specified transmission ratio stages (“7” and “3”), at least two shifting elements (D, E) are opened and at least two shifting elements (B, F), including at least one positive-locking shifting element (F) and at least one frictional-locking shifting element (B), are closed, in the chronological sequence of the shifting process, the closing of the positive-locking shifting element (F) takes place only after all frictional-locking shifting elements (B) are closed.
摘要翻译：一种用于操作自动变速器（1）的方法，包括多个摩擦锁定换档元件（B，C，D，E）和至少一个正锁定换挡元件（A，F），而对于传动比级，从而通过自动变速器（1）的动力流，至少三个变速元件被关闭，而对于两个规定的变速比级（“7”和“3”）之间的变速过程，至少两个变速元件（D，E）被打开，并且包括至少一个正锁定移位元件（F）和至少一个摩擦锁定移动元件（B）的至少两个移动元件（B，F）在只有在所有摩擦锁定移动元件（B）关闭之后，正时锁定移动元件（F）的关闭才会按时间顺序排列。

6. 发明公开

US20230400069A1 Method for the Open-Loop Control of an Electrically Controllable Valve in a Vehicle Transmission 审中-公开
公开(公告)号：US20230400069A1
公开(公告)日：2023-12-14
申请号：US18330804
申请日：2023-06-07
申请人： ZF Friedrichshafen AG
发明人： Anton Fritzer , Thilo Schmidt , Andreas Schmidt , Valentine Vincent , Christoph Köhler , Jonas Knör , Michael Miller , Mario Hasel , Jakob Mayer , Christian Hunger , Fabian Schöniger
IPC分类号： F16H61/30 , F16D48/06
CPC分类号： F16H61/30 , F16D48/066 , F16D2500/10412 , F16D2500/1027 , F16D2500/3024 , F16D2500/3025
摘要： A vehicle transmission includes a hydraulic circuit and a control unit. The control unit is configured to: obtain (20) a target pressure specification; convert (26) the target pressure specification into a target volume flow rate; determine (42) a valve volume flow rate as a function of the target volume flow rate and as a function of parameters that represent system properties of the hydraulic circuit; determine (46) a pressure drop at a valve due to flow forces as a function of the valve volume flow rate; determine (48) a compensated valve output pressure as a function of the valve volume flow rate and the pressure drop; determine (58) the electric control current as a function of the compensated valve output pressure; and activate a valve with the electric control current.

7. 发明申请

US20170261101A1 Device Reducing Drag Loss in an Automatic Transmission 审中-公开
公开(公告)号：US20170261101A1
公开(公告)日：2017-09-14
申请号：US15199076
申请日：2016-06-30
申请人： ZF Friedrichshafen AG
发明人： Markus Herrmann , Thilo Schmidt , Gerhard Martin , Ahmed Mouhcine , Rainer Grundler , Dirk Winkler , Valentine Vincent
IPC分类号： F16H61/48 , F16H61/14 , F16H45/02 , F16H57/04
CPC分类号： F16H61/48 , F16H45/02 , F16H57/0409 , F16H57/0412 , F16H57/0413 , F16H57/0435 , F16H57/0446 , F16H59/72 , F16H61/14 , F16H61/64 , F16H2061/0037
摘要： A drag torque reduction device for an automatic transmission includes a hydraulic controller with a parallel connection of a pressure relief valve, a constant aperture and a temperature-dependent, switchable aperture that is positioned upstream of a radiator relative to a flow of fluid to the radiator. The parallel connection is disposed between a first control edge of a converter switching valve and a first line. The first line leads to both to the radiator and through a check valve to the converter ring. The first control edge of the converter switching valve is open and lubricating oil flows through the parallel connection when the converter switching valve is in a first switching position. The first control edge of the converter switching valve is closed and lubricating oil does not flow through the parallel connection when the converter switching valve is in a second switching position.

8. 发明申请

US20170002922A1 Device Reducing Drag Loss in an Automatic Transmission 审中-公开
标题翻译：装置减少自动变速器中的拖曳损失
公开(公告)号：US20170002922A1
公开(公告)日：2017-01-05
申请号：US15199013
申请日：2016-06-30
申请人： ZF Friedrichshafen AG
发明人： Markus Herrmann , Thilo Schmidt , Gerhard Martin , Ahmed Mouhcine , Rainer Grundler , Dirk Winkler , Valentine Vincent
IPC分类号： F16H57/04 , F16H61/14 , F16K17/04 , F16H61/48
CPC分类号： F16H57/0446 , F16H57/0412 , F16H61/14 , F16H61/48
摘要： A drag torque reduction device for an automatic transmission includes a hydraulic controller with a radiator. In one embodiment, the drag torque reduction device also includes a parallel connection of a pressure relief valve, a constant aperture and a temperature-dependent, switchable aperture positioned upstream of the radiator. In another embodiment, the drag torque reduction device includes an overflow cooling oil diversion with a temperature-dependent, switchable aperture and a pressure relief valve that is positioned upstream of the radiator.
摘要翻译：用于自动变速器的牵引扭矩降低装置包括具有散热器的液压控制器。在一个实施例中，牵引扭矩降低装置还包括位于散热器上游的压力释放阀，恒定孔径和依赖于温度的可切换孔口的并联连接。在另一个实施例中，牵引扭矩降低装置包括具有温度依赖的可切换孔的溢流冷却油分流和位于散热器上游的减压阀。

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