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公开(公告)号：US11383718B1
公开(公告)日：2022-07-12
申请号：US17234322
申请日：2021-04-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pratik Nagesh Vernekar , Patrick Lennox Kennedy , Roberto Diaz
Abstract: A system includes a clutch control module, a shift control module, and a torque control module. The clutch control module is configured to generate a release command signal to switch a selectable one-way clutch (SOWC) from a locked state to a freewheel state. When the SOWC is in the locked state, a transmission transfers torque from an engine to a driveline and from the driveline to the engine. When the SOWC is in the freewheel state, the transmission transfers torque from the engine to the driveline and but not from the driveline to the engine. The shift control module is configured to generate a shift command signal to shift the transmission from a first gear to a second gear after the release command signal is generated. The torque control module is configured to increase an output torque of the engine for a period when the shift command signal is generated.
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2.发明授权公开(公告)号：US10514094B2
公开(公告)日：2019-12-24
申请号：US15648866
申请日：2017-07-13
Applicant: GM Global Technology Operations LLC
Inventor： Todd R. Berger , David C. Webert , Roberto Diaz , David H. Moiseev , Joseph V. Pittiglio , Dustin A. Nygaard
Abstract: A method for controlling internal electronic range selection for an automatic transmission includes: confirming if a range change command has been ordered from a current transmission operating state; verifying expected performance from at least first and second mode valves and a park servo are present in the current transmission operating state prior to allowing a range change event; during the range change event: generating proactive commands including ordering a reduction in a hydraulic system pressure; and identifying if an unexpected event is detected; and following completion of the range change event confirming expected performance is obtained from at least the first and second mode valves and the park servo to achieve a driver intended state.
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3.发明授权公开(公告)号：US10030722B2
公开(公告)日：2018-07-24
申请号：US15345566
申请日：2016-11-08
Applicant: GM Global Technology Operations LLC
Inventor： Roberto Diaz , David C. Webert , Patrick M. Gibson
CPC classification number: F16D48/06 , F16D41/125 , F16D2500/10412 , F16D2500/10493 , F16D2500/1085 , F16D2500/30406 , F16D2500/30415 , F16D2500/3065 , F16D2500/30814 , F16D2500/3166 , F16D2500/502 , F16D2500/70408 , F16D2500/70426 , F16D2500/7082 , F16D2500/7108
Abstract: A system for determining when a selectable one-way clutch has mechanically released includes an update timer identifying if each of a converter model engine torque, a transmission input torque, and a torque converter slip are positive for a predetermined period of time. An SOWC slip value is calculated using an output signal from each of: at least one transmission internal speed sensor producing an output signal representative of a speed of an internal component of a transmission; and at least one transmission output speed sensor producing an output signal representative of a speed of an output of the transmission. An SOWC released signal is issued if either all of the measured converter model engine torque, the measured transmission input torque, and the measured torque converter slip are positive for at least the predetermined period of time, or the calculated SOWC slip value is greater than a predetermined threshold.
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公开(公告)号：US20250060031A1
公开(公告)日：2025-02-20
申请号：US18450062
申请日：2023-08-15
Applicant: GM Global Technology Operations LLC
Inventor： Andrew R. Scheich , Daniel P. Laurent , Peter Paul Radecki , Roberto Diaz , Shawn B. Look
Abstract: A torque converter management system includes a torque converter having a clutch and a torus. The torque converter management system includes memory hardware that stores instructions, that, when executed on data processing hardware of the system, cause the system to perform operations for protecting the torque converter. The operations include receiving torque converter temperature associated with the torque converter. The operations further include obtaining a torque converter protection schedule including one or more torque converter protective action initiation threshold temperatures each having an associated torque converter protective action and determining whether the torque converter temperature(s) exceeds a first one of the torque converter protective action initiation threshold temperatures. When the first torque converter temperature exceeds the first one of the torque converter protective action initiation threshold temperatures, the system initiates a first torque converter protective action associated with the exceeded first torque converter protective action initiation threshold temperature.
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公开(公告)号：US10113639B2
公开(公告)日：2018-10-30
申请号：US14959258
申请日：2015-12-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Scott A. Kline , Patrick M. Gibson , Raj Kommareddy , Roberto Diaz
IPC: F16H61/686 , F16H61/02 , F16H61/06 , F16H61/21 , F16H61/04
Abstract: A transmission includes a stationary member, an input member, and gear sets each having a plurality of nodes. The transmission includes a first clutch that connects a node of one gear set to the stationary member to establish an L1 mode, and a second clutch that connects a node of another gear set to the stationary member to establish a 2L mode. A SOWC is connected between nodes of two gear sets, and a controller, in response to a requested shift L1-L2 shift while engine braking, executes a method to release the first clutch and thereby enters a neutral mode. The SOWC is released when slip across the first clutch exceeds a first threshold, then the first clutch reapplied when a SOWC slip level exceeds another threshold to thereby enter a 1st gear freewheeling mode. The second clutch is reapplied to enter the L2 mode and resume engine braking.
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Patent Agency Ranking
公开(公告)号：US09140359B2
公开(公告)日：2015-09-22
申请号：US13906976
申请日：2013-05-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Brian M. Porto , Matthew D. Whitton , Steven P. Moorman , Craig J. Hawkins , Roberto Diaz
IPC: F16H61/688 , B60K17/00
CPC classification number: F16H61/688 , B60K17/00 , F16H61/0437 , F16H2059/363 , F16H2061/0078 , F16H2061/0087
Abstract: A vehicle includes an engine, a dry dual-clutch transmission (dDCT) having a pair of input clutches and a gearbox containing oddly- and evenly-numbered gear sets, and a transmission control module (TCM). Application of one of input clutches connects the engine to a corresponding one of the oddly- or evenly-numbered gear sets. The TCM includes feed-forward PID-based control logic, and a torque-to-position (TTP) table for each input clutch. The TCM commands a position of a designated input clutch during a power-on upshift using the feed-forward, PID-based control logic, and selectively adapts the TTP table as a function of an inertia and acceleration value of the engine. The TCM may apply an asymmetrical handoff profile to commanded oncoming and offgoing clutch torques during the torque phase of the upshift. The TCM may also adjust the TTP table as a function of the frequency of use of the input clutches.
Abstract translation: 车辆包括发动机，具有一对输入离合器的干式双离合器变速器（dDCT）和包含奇数和均匀编号的齿轮组的变速箱和变速器控制模块（TCM）。 一个输入离合器的应用将发动机连接到奇数或均匀齿轮组中相应的一个。 TCM包括基于PID的前馈控制逻辑和每个输入离合器的转矩到位置（TTP）表。 TCM使用前馈，基于PID的控制逻辑在上电升档期间指定指定输入离合器的位置，并且根据发动机的惯性和加速度值选择性地适配TTP表。 TCM可以在升档的扭矩阶段期间应用不对称切换轮廓来指令迎接和离开的离合器扭矩。 TCM还可以根据输入离合器的使用频率来调整TTP表。
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公开(公告)号：US20140195131A1
公开(公告)日：2014-07-10
申请号：US13906976
申请日：2013-05-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Brian M. Porto , Matthew D. Whitton , Steven P. Moorman , Craig J. Hawkins , Roberto Diaz
IPC: F16H61/688
CPC classification number: F16H61/688 , B60K17/00 , F16H61/0437 , F16H2059/363 , F16H2061/0078 , F16H2061/0087
Abstract: A vehicle includes an engine, a dry dual-clutch transmission (dDCT) having a pair of input clutches and a gearbox containing oddly- and evenly-numbered gear sets, and a transmission control module (TCM). Application of one of input clutches connects the engine to a corresponding one of the oddly- or evenly-numbered gear sets. The TCM includes feed-forward PID-based control logic, and a torque-to-position (TTP) table for each input clutch. The TCM commands a position of a designated input clutch during a power-on upshift using the feed-forward, PID-based control logic, and selectively adapts the TTP table as a function of an inertia and acceleration value of the engine. The TCM may apply an asymmetrical handoff profile to commanded oncoming and offgoing clutch torques during the torque phase of the upshift. The TCM may also adjust the TTP table as a function of the frequency of use of the input clutches.
Abstract translation: 车辆包括发动机，具有一对输入离合器的干式双离合器变速器（dDCT）和包含奇数和均匀编号的齿轮组的变速箱和变速器控制模块（TCM）。 一个输入离合器的应用将发动机连接到奇数或均匀齿轮组中相应的一个。 TCM包括基于PID的前馈控制逻辑和每个输入离合器的转矩到位置（TTP）表。 TCM使用前馈，基于PID的控制逻辑在上电升档期间指定指定输入离合器的位置，并且根据发动机的惯性和加速度值选择性地适配TTP表。 TCM可以在升档的扭矩阶段期间应用不对称切换轮廓来指令迎接和离开的离合器扭矩。 TCM还可以根据输入离合器的使用频率来调整TTP表。
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公开(公告)号：US12247656B1
公开(公告)日：2025-03-11
申请号：US18450062
申请日：2023-08-15
Applicant: GM Global Technology Operations LLC
Inventor： Andrew R. Scheich , Daniel P. Laurent , Peter Paul Radecki , Roberto Diaz , Shawn B. Look
Abstract: A torque converter management system includes a torque converter having a clutch and a torus. The torque converter management system includes memory hardware that stores instructions, that, when executed on data processing hardware of the system, cause the system to perform operations for protecting the torque converter. The operations include receiving torque converter temperature associated with the torque converter. The operations further include obtaining a torque converter protection schedule including one or more torque converter protective action initiation threshold temperatures each having an associated torque converter protective action and determining whether the torque converter temperature(s) exceeds a first one of the torque converter protective action initiation threshold temperatures. When the first torque converter temperature exceeds the first one of the torque converter protective action initiation threshold temperatures, the system initiates a first torque converter protective action associated with the exceeded first torque converter protective action initiation threshold temperature.
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公开(公告)号：US12104664B2
公开(公告)日：2024-10-01
申请号：US18176735
申请日：2023-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pratik Nagesh Vernekar , Donald L Comis , Roberto Diaz
CPC classification number: F16D48/066 , B60W10/023 , F16D2500/10412 , F16D2500/10493 , F16D2500/30806 , F16D2500/3101 , F16D2500/3109 , F16D2500/3115
Abstract: Systems and methods are provided for controlling a transmission of a vehicle that has a selectable one-way clutch. The system includes a sensor system, an anti-lock brake system (ABS), and a controller configured to, by a processor: monitor for a deceleration event wherein an estimated output speed acceleration of the vehicle is reduced below a first threshold, receive a status of the ABS, and output one or more control signals to command the transmission to inhibit the application of the selectable one-way clutch in response to detection of the deceleration event when the selectable one-way clutch is not applied, and the estimated output speed acceleration of the vehicle is either: (i) below the first threshold while the anti-lock brake system ABS of the vehicle is active, or (ii) below a second threshold while the ABS is inactive, wherein the first threshold is greater than the second threshold.
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10.发明公开公开(公告)号：US20240295244A1
公开(公告)日：2024-09-05
申请号：US18176735
申请日：2023-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pratik Nagesh Vernekar , Donald L. Comis , Roberto Diaz
IPC: B60W10/02
CPC classification number: B60W10/023 , F16D2500/10412 , F16D2500/10493 , F16D2500/30806 , F16D2500/3101 , F16D2500/3109 , F16D2500/3115
Abstract: Systems and methods are provided for controlling a transmission of a vehicle that has a selectable one-way clutch. The system includes a sensor system, an anti-lock brake system (ABS), and a controller configured to, by a processor: monitor for a deceleration event wherein an estimated output speed acceleration of the vehicle is reduced below a first threshold, receive a status of the ABS, and output one or more control signals to command the transmission to inhibit the application of the selectable one-way clutch in response to detection of the deceleration event when the selectable one-way clutch is not applied, and the estimated output speed acceleration of the vehicle is either: (i) below the first threshold while the anti-lock brake system ABS of the vehicle is active, or (ii) below a second threshold while the ABS is inactive, wherein the first threshold is greater than the second threshold.
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