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公开(公告)号：US12083932B2
公开(公告)日：2024-09-10
申请号：US17529644
申请日：2021-11-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James Hingst , Jacob M. Knueven , Felicia Powers
CPC classification number: B60L7/26 , B60T8/171 , B60T8/172 , B60L2240/12 , B60L2240/642 , B60L2250/28 , B60T2210/20 , B60T2220/06 , B60T2250/04 , B60T2270/604
Abstract: A method of assisting deceleration during a stop of a motor vehicle having a drivetrain including a traction motor, a road wheel operatively connected to the drivetrain, a friction brake configured to decelerate the road wheel, and an electronic controller includes detecting, via the electronic controller, a request to stop the vehicle. The method also includes commanding the traction motor to provide regenerative braking in response to the request to stop the vehicle. The method additionally includes determining a current vehicle operating state. The method also includes determining an amount of brake drag torque to be generated by the friction brake based on the current vehicle operating state. The method further includes commanding an application of the determined amount of the brake drag torque in parallel with the regenerative braking, thereby operating the friction brake as a mechanical drivetrain damper while assisting the regenerative braking to stop the motor vehicle.
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2.发明公开
公开(公告)号：US20240270085A1
公开(公告)日：2024-08-15
申请号：US18567703
申请日：2022-06-01
Applicant: Bayerische Motoren Werke Aktiengesellschaft
Inventor： Oiher ASPE , Patrick SCHAEDLER
IPC: B60L15/20
CPC classification number: B60L15/20 , B60L2240/12 , B60L2240/423 , B60L2250/26 , B60L2250/28
Abstract: A device for operating an electric drive machine of a vehicle in preparation for a start-up process of the vehicle is configured to determine that a preparation mode of the vehicle for preparing for the start-up process is active, and in response, operate the electric drive machine with a time-modulated target drive torque in a preparation phase for the start-up process in order to create vibrations of the vehicle by the drive machine as haptic feedback for a driver of the vehicle when the vehicle is stationary.
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公开(公告)号：US20240266986A1
公开(公告)日：2024-08-08
申请号：US18329282
申请日：2023-06-05
Applicant: Hyundai Motor Company , Kia Corporation
Inventor： Jong Won Kim
CPC classification number: H02P29/62 , B60K1/02 , B60K17/356 , B60K23/0808 , B60L7/10 , B60L15/2045 , B60K2001/006 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2240/525 , B60L2250/28
Abstract: An embodiment oil temperature control system for an electric vehicle includes a heat exchange unit that performs heat exchange between an oil for cooling a driving motor and a coolant, a temperature sensor including an oil temperature sensor or an outside air temperature sensor, a controller that receives a signal from the temperature sensor to determine whether a heat generation mode entry condition to cause a power electronic part to generate heat is satisfied and operates the power electronic part in a heat generation mode when the heat generation mode entry condition is satisfied, and a cooling system that allows the coolant used to cool the power electronic part operating in the heat generation mode to circulate through a passage penetrating the heat exchange unit so that the coolant exchanges heat with the oil in the heat exchange unit.
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公开(公告)号：US20240227571A1
公开(公告)日：2024-07-11
申请号：US17754836
申请日：2019-10-21
Applicant: VOLVO TRUCK CORPORATION
Inventor： Mattias ÅSBOGÅRD , Charul SAMPATH
CPC classification number: B60L7/10 , B60L15/2009 , B60L2240/12 , B60L2240/14 , B60L2240/486 , B60L2240/642 , B60L2250/28
Abstract: The invention relates to a method for operating a vehicle (1), wherein the vehicle (1) comprises: a driveline (2, 4) configured to provide a driving power to at least one wheel (3) of the vehicle (1) for propulsion of the vehicle (1); and a wheel brake system (5) configured to brake the vehicle (1), wherein the method comprises the steps of: receiving (S1) a control signal indicative of a request for acceleration or deceleration of the vehicle (1), wherein the acceleration or deceleration control signal is generated by an accelerator device, such as an accelerator pedal, configured to be acted upon by a driver of the vehicle (1); and controlling (S2) the driveline (2, 4) in response to the acceleration or deceleration control signal. The method comprises the steps of: providing (S3) an acceleration or deceleration threshold limit representing i) the highest vehicle acceleration that can be allowed for the received acceleration control signal in the current circumstances, or ii) the lowest vehicle deceleration that can be allowed for the received deceleration control signal in the current circumstances; determining (S4) a resulting vehicle acceleration or deceleration that is or will be the result from the step of controlling the electric driveline in response to the acceleration or deceleration control signal; comparing (S5) the resulting vehicle acceleration or deceleration with the corresponding acceleration or deceleration threshold limit and determining whether the resulting vehicle acceleration is or will be higher than the acceleration threshold limit or whether the resulting vehicle deceleration is or will be lower than the deceleration threshold limit; and when the resulting vehicle acceleration is or will be higher than the acceleration threshold limit or when the resulting vehicle deceleration is or will be lower than the deceleration threshold limit; applying (S6) the wheel brake system (5) so as to reduce an actual vehicle acceleration or increase an actual vehicle deceleration towards the corresponding acceleration or deceleration threshold limit.
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公开(公告)号：US11820357B2
公开(公告)日：2023-11-21
申请号：US17399303
申请日：2021-08-11
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Lee Hyoung Cho , Ji Won Oh , Sang Joon Kim , Seong Ik Park
CPC classification number: B60W20/10 , B60K6/20 , B60L15/20 , B60L2240/14 , B60L2240/423 , B60L2250/28 , B60L2260/20 , B60L2260/42 , B60L2260/44 , B60W2540/10 , B60W2710/0666 , B60W2710/083 , B60W2720/106 , B60Y2200/91 , B60Y2200/92 , B60Y2300/182
Abstract: Disclosed are a vehicle for generating an acceleration profile based on the acceleration cognitive characteristics of the human and a method of controlling the same. The method includes: receiving a manipulation amount of an accelerator pedal and calculating a first torque value, inserting the first torque value to a function that receives force and outputs acceleration feeling, generating a second torque value by inserting an output value of the function into a first filter for stabilizing the output value, generating a target torque value by inputting the second torque value to a second filter for stabilizing the second torque value, and generating a torque command based on the target torque value.
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公开(公告)号：US20230347748A1
公开(公告)日：2023-11-02
申请号：US18033533
申请日：2020-10-28
Applicant: Nissan Motor Co., Ltd.
Inventor： Takahisa Kurosawa , Yohei Nakamura , Masahito Taira
CPC classification number: B60L7/26 , B60L15/2009 , B60K1/02 , B60K17/356 , B60T8/1701 , B60K23/0808 , B60L2240/48 , B60L2250/28 , B60L2240/12 , B60L2240/421 , B60L2240/423
Abstract: An electric vehicle control method for braking of an electric vehicle applies a front braking torque to a front drive motor that drives a front wheel and applies a rear braking torque to a rear drive motor that drives a rear wheel. The method includes: during the braking, executing a torque limiting process (process B, process C, front braking torque control) that reduces the front braking torque and the rear braking torque when a slip of the front wheel is detected; and executing a distribution torque changing process that increases the front braking torque while maintaining a sum of the front braking torque and the rear braking torque when a slip of the rear wheel is detected.
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公开(公告)号：US20230311705A1
公开(公告)日：2023-10-05
申请号：US18024106
申请日：2021-08-26
Applicant: ACCELERATED SYSTEMS INC.
Inventor： Willem JAGER , Tim LAMBERT , Andrew FLEMMING
CPC classification number: B60L58/21 , B60L50/60 , B60L58/12 , B60L2240/547 , B60L2240/549 , B60L2250/28 , B60L7/10
Abstract: There are provided methods and systems for operating battery packs. One example method includes obtaining voltages of batteries of the battery pack, which includes a plurality of the batteries connected to a circuit. The method also includes obtaining an output current to be output from the battery pack and selecting a subset of the batteries capable collectively of providing the output current. The subset includes one or more selected batteries selected from among the plurality of the batteries. The subset has a subset voltage being substantially similar to a voltage of each of the selected batteries. The subset may be selected such that the selected batteries have substantially similar voltages and the subset voltage is maximized. The method also includes drawing the output current from the subset of the batteries. Other methods and systems for operating a battery pack are also provided.
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公开(公告)号：US20230256868A1
公开(公告)日：2023-08-17
申请号：US17971119
申请日：2022-10-21
Applicant: Hyundai Motor Company , Kia Corporation
Inventor： Sang Chul Yeom , Seung Yoon Lee , Hyo Jun Kim , Jae Hwan Choi , Jong Seok Han , Jeong Kyu Park , Jae Hoon Jeong
IPC: B60L58/40 , B60L15/20 , H01M16/00 , H01M8/04858
CPC classification number: B60L58/40 , B60L15/2072 , H01M16/006 , H01M8/04925 , B60L2240/423 , B60L2250/28 , B60L2240/14 , H01M2220/20 , H01M2250/20
Abstract: The present disclosure relates to a battery assisting apparatus and method for a fuel cell vehicle. An exemplary embodiment of the present disclosure provides a battery assisting apparatus for a fuel cell vehicle, including: a controller configured to determine an increase or decrease of driver's determination to accelerate based on a change rate of motor torque and a change rate of accelerator opening when a battery assistance mode is entered, and to release the battery assistance mode when the driver's determination to accelerate is decreased; and a storage configured to store data and algorithms driven by the controller.
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公开(公告)号：US11691519B2
公开(公告)日：2023-07-04
申请号：US16707695
申请日：2019-12-09
Applicant: DENSO CORPORATION
Inventor： Kazuya Taniguchi , Taro Shimosaka , Kunihiro Suzuki , Ken Toshiyuki , Koichi Sakata
CPC classification number: B60L15/20 , B60K7/0007 , H02P5/74 , H02P21/10 , H02P21/22 , B60L2240/12 , B60L2240/423 , B60L2250/28
Abstract: There is provided an electrically driven vehicle that well balances calculation volumes and communication volumes of two control devices configured to drive and control motors for driving. The electrically driven vehicle comprises at least one motor for driving and a first control device and a second control device configured to control the motor. The first control device is configured to calculate a target torque that is to be output from the motor, based on information including an accelerator position, to calculate a current command based on the calculated target torque, and to send the calculated current command to the second control device. The second control device is configured to use the current command, a phase current of the motor and a rotational angle of the motor such as to drive the motor by feedback control.
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公开(公告)号：US09896083B2
公开(公告)日：2018-02-20
申请号：US14911277
申请日：2014-07-30
Applicant: Nissan Motor Co., Ltd.
Inventor： Tetsunobu Morita , Ryoji Kadono , Shuusaku Katakura , Kenichiro Murakami
IPC: B60W20/10 , B60K6/48 , B60L11/14 , B60W10/06 , B60W10/08 , B60L15/20 , B60W50/00 , B60W50/06 , B60W50/08 , B60W20/19 , B60W20/00 , B60W20/20
CPC classification number: B60W20/10 , B60K6/48 , B60K2006/4825 , B60L11/14 , B60L15/20 , B60L2240/14 , B60L2240/423 , B60L2240/443 , B60L2250/12 , B60L2250/28 , B60L2260/50 , B60W10/06 , B60W10/08 , B60W20/00 , B60W20/19 , B60W20/20 , B60W50/0097 , B60W50/06 , B60W50/082 , B60W2050/002 , B60W2510/0604 , B60W2510/18 , B60W2520/105 , B60W2520/125 , B60W2530/14 , B60W2540/10 , B60W2540/106 , B60W2540/12 , B60W2540/30 , B60W2550/142 , B60W2550/146 , Y02T10/48 , Y02T10/6221 , Y02T10/6252 , Y02T10/6291 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
Abstract: A vehicle control device includes an engine stop/start determination unit and an engine controller and a re-acceleration scene predicting unit. The engine stop/start determination unit determines stopping and starting of the engine based on a magnitude of the accelerator position opening amount unit. The engine controller carries out the stopping/starting of the engine in accordance with the determination of the engine stop/start determination unit. The re-acceleration scene predicting unit predicts a re-acceleration scene in which an accelerator is depressed after the accelerator has been released based on the accelerator position opening amount. When the re-acceleration scene predicting unit predicts a re-acceleration scene of the engine, the engine stop/start determination unit prohibits the stopping of the engine while the engine is running, and the starting of the engine is carried out by the accelerator being depressed while the engine is stopped.
