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公开(公告)号：US09068907B1
公开(公告)日：2015-06-30
申请号：US14270857
申请日：2014-05-06
Applicant: GM Global Technology Operations LLC
Inventor： Jun-Mo Kang , Yongjie Zhu , Yiran Hu , Chen-Fang Chang , Hanho Yun
CPC classification number: F01N13/107 , F01N3/00 , F01N13/02 , F02D13/0207 , F02D13/0261 , F02D13/0265 , F02D41/00 , F02D41/0007 , F02D41/005 , F02D41/0062 , F02D2041/001 , Y02T10/144 , Y02T10/18 , Y02T10/47
Abstract: A method can be used to determine the total residual gas volume in a cylinder when the piston of an internal combustion engine is at the bottom dead center (BDC) position. The method includes: (a) measuring an intake manifold pressure and an exhaust manifold pressure; (b) determining a residual gas volume in the at least one cylinder originating from a current engine cycle; (c) determining a residual gas volume in the at least one intake port originating from at least one previous engine cycle; and (d) determining a total residual gas volume when the piston is at a BDC position based, at least in part, on the residual gas volume in the at least one cylinder originating from the current engine cycle and the residual gas volume in the at least one cylinder originating from at least one previous engine cycle.
Abstract translation: 当内燃机的活塞处于下死点（BDC）位置时，可以使用一种方法来确定气缸中的总残余气体体积。 该方法包括：（a）测量进气歧管压力和排气歧管压力; （b）确定来自当前发动机循环的至少一个气缸中的残余气体体积; （c）确定源于至少一个先前发动机循环的至少一个进气口中的残余气体体积; 以及（d）至少部分地基于来自当前发动机循环的至少一个气缸中的残余气体体积和在所述发动机循环中的剩余气体体积来确定活塞处于BDC位置时的总剩余气体体积 至少一个气缸起始于至少一个先前的发动机循环。
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公开(公告)号：US11872989B2
公开(公告)日：2024-01-16
申请号：US17126784
申请日：2020-12-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Paul G. Otanez , Yiran Hu , Hualin Tan , Daniel L Baibak , Ruixing Long
IPC: B60W30/182 , B60W10/04 , B60W50/08 , B60W40/114 , B60W40/109 , B60W40/08 , B60W10/18 , B60W40/105 , B60W10/20 , B60W30/14 , B60W30/12
CPC classification number: B60W30/182 , B60W10/04 , B60W10/18 , B60W10/20 , B60W30/12 , B60W30/14 , B60W40/08 , B60W40/105 , B60W40/109 , B60W40/114 , B60W50/082 , B60W2520/10 , B60W2540/10 , B60W2540/12 , B60W2540/18
Abstract: The concepts described herein relate to a calculation of desired future longitudinal horizons related to torque or acceleration, and desired future lateral horizons related to yaw rate and lateral velocity, and their use in response to driver-selectable modes. In the longitudinal direction, driver inputs of pedal and brake position as well as drivability metrics are used to calculate the desired future torque trajectory. In the lateral direction, the front and rear steering angles may be used with a bicycle model to derive the trajectories. The trajectories are used in a vehicle motion controller that uses weighting to tradeoff competing requests and deliver performance that is consistent with a selected driver mode, such as a tour mode, a sport mode, an off-road mode, a trailering mode, etc.
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公开(公告)号：US11752881B2
公开(公告)日：2023-09-12
申请号：US17153244
申请日：2021-01-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Paul G. Otanez , Yiran Hu , Nathaniel S. Michaluk , Krunal P. Patel , Adam J. Heisel , Kevin J. Storch , Jacob M. Knueven , Matthew Yard
IPC: B60L15/20 , B60T8/17 , B60W10/18 , B60W10/184 , B60W30/09
CPC classification number: B60L15/2009 , B60T8/1701 , B60W10/18 , B60W10/184 , B60W30/09
Abstract: A method of operating a vehicle includes a vehicle controller receiving an operator-input vehicle control command with an associated torque request, and identifying any propulsion actuator constraints that limit a brake torque capacity available from the vehicle powertrain. Using the propulsion actuator constraint(s) and torque request, the controller determines a propulsion brake torque distribution for the vehicle's road wheels and a maximum brake torque capacity for the powertrain actuator(s). A first brake torque request is determined using the propulsion brake torque distribution and a vehicle control mode of the powertrain system, and a second brake torque request is determined using the maximum brake torque capacity and the vehicle control mode. A friction brake torque command is determined by arbitrating between the first and second brake torque requests. The vehicle controller transmits the friction brake torque command to the friction brake system and a powertrain brake command to the powertrain actuator(s).
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公开(公告)号：US11685262B2
公开(公告)日：2023-06-27
申请号：US17110814
申请日：2020-12-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Paul G. Otanez , Adam J. Heisel , Nathaniel S. Michaluk , Yiran Hu , Jacob M. Knueven , Todd P. Lindemann
CPC classification number: B60L15/20 , B60K1/00 , B60K17/00 , B60K26/02 , B60K2026/025 , B60L2240/12 , B60L2240/423 , B60L2250/00 , B60L2260/44
Abstract: A method of operating a vehicle includes a vehicle controller receiving a driver acceleration/deceleration command for the vehicle's powertrain and determining a torque request corresponding to the driver's acceleration command. The controller shapes the torque request and determines compensated and uncompensated accelerations from the shaped torque request. The compensated acceleration is based on an estimated road grade and an estimated vehicle mass, whereas the uncompensated acceleration is based on a zero road grade and a nominal vehicle mass. A final speed horizon profile is calculated as: a speed-control speed profile based on the uncompensated acceleration if the vehicle's speed is below a preset low vehicle speed; or a torque-control speed profile based on a blend of the compensated and uncompensated accelerations if the vehicle speed exceeds the preset low vehicle speed. The controller commands the powertrain to output a requested axle torque based on the final speed horizon profile.
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公开(公告)号：US11312208B2
公开(公告)日：2022-04-26
申请号：US16551064
申请日：2019-08-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Yiran Hu , David E. Edwards , Jun Chen , Insu Chang , Steven P. Moorman
Abstract: Systems and methods are provided for management of a thermal system. A system for thermal management includes a thermal system with fluid conduits. A sensor is disposed to monitor an input parameter state of the thermal system. An actuator is configured to vary a flow in the fluid conduits. A controller is configured to receive a signal representative of the input parameter state; process an actuator state through a flow model of the thermal system to obtain an existing flow in the fluid conduits; process the existing flow through a thermal model of the thermal system to determine an input that reduces an error between a desired parameter state and the input parameter state; process the input through an inverse flow model to convert the input to a desired actuator state; and position the actuator in the desired actuator state.
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Patent Agency Ranking
公开(公告)号：US10995688B2
公开(公告)日：2021-05-04
申请号：US16431199
申请日：2019-06-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jun Chen , David E. Edwards , Yiran Hu , Min Sun , Adam J. Heinzen , Michael A. Smith
Abstract: Systems and methods are provided for determining a temperature of a thermal system that includes fluid conduits. A sensor monitors a current state of the temperature. A controller receives a signal from the sensor that is representative of the current state; determines a flow in the fluid conduits; determines a noise covariance of the thermal system; processes a thermal model of the thermal system; predicts a next-step state of the parameter at a time after the current state; and corrects the next-step state based, at least in-part, on the noise covariance resulting in a corrected next-step state.
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公开(公告)号：US20190375403A1
公开(公告)日：2019-12-12
申请号：US16003223
申请日：2018-06-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yiran Hu , Junfeng Zhao , Steven E. Muldoon , Chen-Fang Chang
IPC: B60W30/14
Abstract: A system and method are provided for operating a powertrain control system. The method includes receiving data measured from a plurality of sensors, the measured data relating to distance dependent speed values, and receiving information from one or more vehicle modules, the vehicle module information relating to distance independent speed values. The method further includes building a speed trajectory profile for a horizon window that includes a plurality of speed change regions represented by at least some distance dependent speed values or at least some distance independent speed values, and creating a synthesized speed profile for the horizon window by processing the speed trajectory profile. The synthesized speed profile optimizes efficiency of the powertrain control system at each of the plurality of speed change regions.
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公开(公告)号：US20190234750A1
公开(公告)日：2019-08-01
申请号：US15880918
申请日：2018-01-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Steven E. Muldoon , Yiran Hu , Junfeng Zhao , Vivek Vijaya Kumar
Abstract: A system and method for routing based on a predicted connectivity quality is disclosed. The method includes receiving, by a controller, map information corresponding to a geographical area. The method also includes receiving, by the controller, wireless connectivity information corresponding to the geographical area. The method also includes generating output data of at least one route between a starting location and a destination location within the geographical area. The generating is based on the wireless connectivity information.
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公开(公告)号：US20190178183A1
公开(公告)日：2019-06-13
申请号：US15840781
申请日：2017-12-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yiran Hu , Chen-fang Chang , Scott J. Chynoweth , Douglas R. Verner , Feilong Liu
CPC classification number: F02D41/065 , F02D41/042 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02D2200/701 , F02N11/0837 , F02N2200/022 , F02N2200/0801 , F02N2200/101 , F02N2200/102 , F02N2200/103 , F02N2200/123 , F02N2200/124 , F02N2200/125
Abstract: A method of start/stop engine control based on vehicle location and driving situation includes identifying the location and driving situation of a host vehicle, and classifying the location and the driving situation of the host vehicle based on the identified location and driving situation. The engine start/stop control is based on at least one of the location classification and driving situation classification.
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公开(公告)号：US10099702B2
公开(公告)日：2018-10-16
申请号：US15247252
申请日：2016-08-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Steven E. Muldoon , Dongxu Li , Yiran Hu , Jun-mo Kang , Chen-fang Chang
IPC: B60W50/00 , B60W10/06 , B60W10/30 , B60W30/182 , B60W30/188
Abstract: A vehicle is described, and includes a drivetrain system including an internal combustion engine and a geartrain, an accessory device, and a route monitoring system. A controller includes an instruction set to monitor operation of the accessory device, and a request to operate the accessory device. When the request to operate the accessory device includes a request to activate the accessory device based upon not exceeding a limit for an operating parameter of the accessory device, the instruction set executes to determine a horizon for the vehicle based upon the projected path for the vehicle, determine a projected road load and a speed constraint based upon the horizon for the vehicle, and determine a projected axle torque command based upon the projected road load. A first routine determines a first command for operating the accessory device that minimizes fuel consumption and meets the projected axle torque command.
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