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41. 发明授权

US10676079B1 Hybrid electric powertrian system with e-accessory drive and associated power sharing architecture 有权
公开(公告)号：US10676079B1
公开(公告)日：2020-06-09
申请号：US16211801
申请日：2018-12-06
申请人： GM Global Technology Operations LLC
发明人： Norman K. Bucknor , Madhusudan Raghavan
IPC分类号： B60W20/15 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/30 , B60W30/188 , B60K6/48
摘要： A hybrid electric powertrain system includes a transmission, engine, e-accessory, primary and secondary electric machines, and controller. The e-accessory is powered by the secondary electric machine in response to an accessory torque demand. The engine and primary electric machine are connected to the transmission and configured, alone or in combination, to provide input drive torque to the transmission. The secondary electric machine is connected to the e-accessory and satisfies the accessory torque demand. A first clutch between the secondary electric machine and a transmission input member connects the secondary electric machine to the input member. The controller, in response to an output torque request, executes a power-sharing strategy using an objective cost function that allocates engine torque, primary motor torque, and secondary motor torque to the input member to satisfy the output torque request, while satisfying the accessory torque demand via the secondary electric machine.

42. 发明授权

US10471820B2 Hybrid drivetrain 有权
公开(公告)号：US10471820B2
公开(公告)日：2019-11-12
申请号：US15583383
申请日：2017-05-01
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Derek F. Lahr , Farzad Samie , Norman K. Bucknor , Chunhao J. Lee , Dongxu Li , Chandra S. Namuduri , Alexandru Rajala
IPC分类号： B60K6/48 , B60K6/36 , B60K6/38 , B60K6/40 , B60K6/52 , B60K6/387 , B60K17/28 , B60K17/346 , B60K23/08
摘要： A drivetrain system for a vehicle is described, and includes an internal combustion engine, a geartrain, an electric machine, a power take-off unit, and a driveline. The internal combustion engine is coupled to the geartrain via a disconnect clutch and a torque converter. The geartrain includes a transmission and a differential gearset, including an output member of the transmission coupled to an input member of the differential gearset. The input member of the differential gearset is coupled to a rotor of the electric machine and the power take-off unit. The differential gearset is coupled to first and second intermediate driveshaft members of the driveline to transfer propulsion power to vehicle wheels that are arranged in a front-wheel configuration.

43. 发明申请

US20190338742A1 METHOD AND APPARATUS FOR CONTROLLED STOPPING OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20190338742A1
公开(公告)日：2019-11-07
申请号：US15967961
申请日：2018-05-01
申请人： GM Global Technology Operations LLC
发明人： Suresh Gopalakrishnan , Lei Hao , Chandra S. Namuduri , Paul S. Lombardo , Chunhao J. Lee , Alexandru Rajala , Neeraj S. Shidore , Farzad Samie , Norman K. Bucknor , Dongxu Li
IPC分类号： F02N11/08
摘要： A method of controlled stopping an internal combustion engine having a stop-start mode and starter assembly includes detecting when the stop-start mode is active. The method also includes monitoring current rotational speed and position of the engine. The method additionally includes determining when the current rotational position is within a predetermined range of a target stop rotational position and the current rotational speed is less than a threshold rotational speed, and afterward energizing the starter assembly to engage the engine. The method also includes establishing a time delay following energizing the starter assembly to confirm engagement of the starter assembly with the engine. Furthermore, the method includes applying a torque by the starter assembly to stop the engine at the target stop position. A vehicle powertrain employing the engine equipped with the stop-start mode, the starter assembly, and an electronic controller configured to execute the method is also provided.

44. 发明申请

US20190232942A1 ANTICIPATORY CONTROL FOR HYBRID VEHICLE PROPULSION SYSTEM 审中-公开
公开(公告)号：US20190232942A1
公开(公告)日：2019-08-01
申请号：US15883241
申请日：2018-01-30
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Jinming Liu , Lan Wang , Goro Tamai , Norman K. Bucknor
IPC分类号： B60W20/11 , B60W10/06 , B60W10/08 , B60K6/442 , B60W20/20 , B60W20/40 , B60W20/12
CPC分类号： B60W20/11 , B60K6/442 , B60W10/06 , B60W10/08 , B60W20/12 , B60W20/20 , B60W20/40 , B60W2400/00 , B60W2510/244 , B60W2550/22 , B60W2550/30
摘要： A system and method are provided for placing a hybrid vehicle having a plurality of electric propulsion motors into an operating state in anticipation of a vehicle event, the method may include the steps of: monitoring roadway traffic and conditions surrounding a vehicle using one or more vehicle sensors and/or wireless communications; anticipating a vehicle propulsion operation change based on the monitored roadway traffic and conditions; in response to anticipating the vehicle propulsion operation change, obtaining a present propulsion operating state; and carrying out an anticipatory vehicle propulsion system transition before receiving a vehicle propulsion operation change request. The anticipatory vehicle propulsion system transition may include the steps of: calculating an intermediary propulsion operating state based on the present propulsion operating state and/or the monitored roadway traffic and conditions; and operating an internal combustion engine and a first electric propulsion motor such that the vehicle is placed in the intermediary propulsion operating state.

45. 发明授权

US10323696B2 Dynamic latching mechanisms for selectable clutches of motor vehicle powertrains 有权
公开(公告)号：US10323696B2
公开(公告)日：2019-06-18
申请号：US15619776
申请日：2017-06-12
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Farzad Samie , Derek F. Lahr , Chunhao J. Lee , Norman K. Bucknor , Dongxu Li
IPC分类号： B60K6/54 , B60K17/02 , F16D15/00 , F16D19/00
摘要： Disclosed are latching mechanisms for engine disconnect devices, methods for making and for using such latching mechanisms, and motor vehicles with a disconnect device for coupling/decoupling an engine with a torque converter (TC). A disconnect clutch for selectively connecting an engine with a TC includes a pocket plate that movably mounts to the TC. The pocket plate includes pockets movably seating therein struts that engage notches in a notch plate to lock the pocket plate to the notch plate. A selector plate moves between deactivated and activated positions such that the struts shift into and out of engagement with the notch plate notches, respectively. An activation device is selectively actuable to move the selector plate between activated and deactivated positions. A latching mechanism automatically transitions to a latched state responsive to the selector plate being activated. When latched, this latching mechanism retains the selector plate in the activated position.

46. 发明授权

US10259448B2 Hybrid vehicle propulsion systems and methods 有权
公开(公告)号：US10259448B2
公开(公告)日：2019-04-16
申请号：US15239010
申请日：2016-08-17
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Norman K. Bucknor , Suresh Gopalakrishnan , Lei Hao , Derek F. Lahr , Dongxu Li , Shifang Li , Chandra S. Namuduri , Thomas W. Nehl , Avoki M. Omekanda , Rashmi Prasad , Farzad Samie , Aaron M. Sullivan
IPC分类号： B60W10/06 , B60W10/08 , B60W10/30 , B60W20/13 , B60W20/40 , B60W20/50 , B60K6/26 , B60K6/48 , F02N11/04 , B60K6/387
摘要： A hybrid vehicle propulsion includes an engine and a first electric machine, where each is configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine to provide torque to start the engine from an inactive state. A high-voltage power source is configured to power both of the first electric machine and the second electric machine over a high-voltage bus. The propulsion system further includes a controller programmed to deactivate the engine and propel the vehicle using the first electric machine in response to the vehicle being driven at a steady-state speed for a predetermined duration of time. The controller is also programmed to restart the engine using the second electric machine powered by the high-voltage power source.

47. 发明申请

US20190031180A1 HYBRID POWERTRAIN SYSTEM 审中-公开
公开(公告)号：US20190031180A1
公开(公告)日：2019-01-31
申请号：US15660589
申请日：2017-07-26
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Chunhao J. Lee , Neeraj S. Shidore , Norman K. Bucknor , K V Hebbale , Farzad Samie , Dongxu Li
IPC分类号： B60W20/19 , B60W10/02 , B60W10/06 , B60W10/08 , B60W20/40 , B60K6/48 , B60K6/40 , B60K6/383 , B60K6/387
CPC分类号： B60W20/19 , B60K6/383 , B60K6/387 , B60K6/40 , B60K6/48 , B60K2006/4825 , B60W10/02 , B60W10/026 , B60W10/06 , B60W10/08 , B60W20/40 , B60W30/09 , B60W30/14 , B60W2510/0208 , B60W2510/0283 , B60W2510/0638 , B60W2520/105 , B60W2540/10 , B60W2710/021 , B60W2710/024 , B60W2710/0644 , B60W2710/0666 , B60W2710/083 , B60W2720/106 , B60Y2200/92 , Y10S903/913 , Y10S903/914 , Y10S903/93 , Y10S903/946 , Y10S903/951
摘要： A low-voltage hybrid powertrain system for a vehicle includes an engine that is coupled via an engine disconnect clutch to an input member of the transmission, and a low-voltage electric machine is coupled to the transmission. The powertrain system operates in an electric vehicle (EV) mode with the engine in an OFF state and with the engine disconnect clutch in an open/deactivated state. When an output torque request indicates a command for vehicle acceleration, the electric machine is controlled to generate torque in response to the output torque request and the engine is simultaneously cranked and started. Upon starting, the engine operates in a speed control mode to activate the engine disconnect clutch. The engine and the low-voltage electric machine are controlled to generate torque in response to the output torque request when the engine disconnect clutch is activated.

48. 发明申请

US20180355962A1 DAMPER ASSEMBLIES FOR ENGINE DISCONNECT CLUTCHES OF MOTOR VEHICLE POWERTRAINS 审中-公开
公开(公告)号：US20180355962A1
公开(公告)日：2018-12-13
申请号：US15617710
申请日：2017-06-08
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Derek F. Lahr , Farzad Samie , Chunhao J. Lee , Norman K. Bucknor , Dongxu Li
IPC分类号： F16H45/02 , F16D41/12
CPC分类号： F16H45/02 , F16D41/08 , F16D41/125 , F16D41/16 , F16H2045/0205 , F16H2045/0252
摘要： Disclosed are damper assemblies for engine disconnect devices, methods for making such damper assemblies, and motor vehicles with a disconnect device for coupling/decoupling an engine with a torque converter (TC). A disconnect clutch for selectively connecting an engine with a TC includes a pocket plate that movably mounts to the TC. The pocket plate includes pockets movably seating therein engaging elements that engage input structure of the TC and thereby lock the pocket plate to the TC. A selector plate moves between engaged and disengaged positions such that the engaging elements shift into and out of engagement with the TC input structure, respectively. A flex plate is attached to the engine's output shaft for common rotation therewith. A damper plate is attached to the pocket plate for common rotation therewith. Spring elements mate the damper and flex plates such that the damper plate is movably attached to the flex plate.

49. 发明授权

US09517706B2 Method and apparatus for controlling an electrified powertrain system of a vehicle 有权
标题翻译：用于控制车辆的电动动力系统的方法和装置
公开(公告)号：US09517706B2
公开(公告)日：2016-12-13
申请号：US14710041
申请日：2015-05-12
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Min-Joong Kim , Yo Chan Son , Norman K. Bucknor , R Travis Schwenke
IPC分类号： B60L15/20
CPC分类号： B60L15/2054 , B60L11/12 , B60L2240/12 , B60L2240/50 , B60W20/40 , Y02T10/6286 , Y02T10/7275
摘要： A method for controlling a powertrain system includes deactivating a motor disconnect clutch during vehicle operation. Motor speed is decreased to a first inactive speed threshold and an inverter circuit is controlled to an inactive state while monitoring the motor speed. The inverter circuit is deactivated, and when the motor speed decreases to a second inactive speed threshold, the inverter circuit is pulse-activated to operate the electric machine to increase motor speed to the first inactive speed threshold, and then deactivated. The inverter circuit is activated to increase the motor speed to synchronize with speed of the driveline prior to activating the motor disconnect clutch.
摘要翻译：一种用于控制动力系统的方法，包括在车辆操作期间停用电动机断开离合器。电动机速度降低到第一非活动速度阈值，并且在监视电动机速度的同时将逆变器电路控制到无效状态。逆变器电路停用，当电机转速下降到第二非活动速度阈值时，逆变器电路被脉冲激活，以操作电机，将电机转速提高到第一非活动速度阈值，然后停用。在启动电动机断开离合器之前，变频器电路被激活以增加电动机速度以与传动系的速度同步。

50. 发明申请

US20160333997A1 HYBRID TRANSMISSION 有权
标题翻译：混合传输
公开(公告)号：US20160333997A1
公开(公告)日：2016-11-17
申请号：US14710045
申请日：2015-05-12
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Alan G. Holmes , Norman K. Bucknor
IPC分类号： F16H37/08 , F16H1/28 , F16H1/02
CPC分类号： H02K99/00 , H02K51/00
摘要： A transmission for transferring mechanical power between an input member and an output member is described, and includes a first synchronous electric machine including a first stator, a first distal rotor and a first proximal rotor and a second synchronous electric machine including a second stator, a second distal rotor and a second proximal rotor. The input member rotatably couples to the first distal rotor and to the second proximal rotor and the output member rotatably couples to the second distal rotor and to the first proximal rotor. Mechanical power is transferrable between the input member and the output member without torque being applied by the first stator.
摘要翻译：描述了用于在输入构件和输出构件之间传递机械动力的变速器，并且包括具有第一定子，第一远端转子和第一近侧转子的第一同步电机和包括第二定子的第二同步电机，第二远端转子和第二近端转子。输入构件可旋转地联接到第一远端转子和第二近端转子，并且输出构件可旋转地联接到第二远端转子和第一近端转子。机械动力可以在输入构件和输出构件之间传递，而没有由第一定子施加扭矩。

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