公开(公告)号：US12123364B2

公开(公告)日：2024-10-22

申请号：US18332043

申请日：2023-06-09

申请人： JAGUAR LAND ROVER LIMITED

发明人： Craig Holroyd ,  Claudio Cascone

IPC分类号： F02D13/02 ,  F02D41/00 ,  F02D41/10 ,  F02D41/40

CPC分类号： F02D13/0226 ,  F02D13/0223 ,  F02D13/0234 ,  F02D41/009 ,  F02D41/10 ,  F02D41/401 ,  F02D2041/001 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2250/12 ,  F02D2250/21

摘要： A control system for controlling operation of an internal combustion engine is configured to: receive a first request signal indicative of first torque demand; determine a schedule defining an opening timing of the intake valve and a closing timing of the intake valve of a cylinder of the internal combustion engine in dependence on the first torque demand; and cause the intake valve to open in accordance with the schedule. The control system is also configured to, during a period in which the intake valve is open: receive a second torque request signal indicative of a second torque demand different to the first torque demand; determine an updated schedule defining an updated closing timing of the intake valve in dependence on the second torque demand; and cause the intake valve to close in accordance with the updated schedule.

公开(公告)号：US20240093651A1

公开(公告)日：2024-03-21

申请号：US18346578

申请日：2023-07-03

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yuta OCHI

IPC分类号： F02D13/02 ,  F02N11/08

CPC分类号： F02D13/0226 ,  F02N11/0862 ,  F02D2200/021 ,  F02D2200/50

摘要： An internal combustion engine control device includes: a temperature acquisition unit configured to acquire the temperature of an internal combustion engine at the time when it is requested to start the internal combustion engine; a motoring execution unit configured to execute motoring of the internal combustion engine using the motor when it is requested to start the internal combustion engine; and an in-cylinder pressure control unit configured to control the in-cylinder pressure of the internal combustion engine during the motoring based on the temperature of the internal combustion engine. The in-cylinder pressure control unit is configured to execute in-cylinder pressure increase control, in which the in-cylinder pressure is increased when the temperature of the internal combustion engine is equal to or less than a predetermined threshold temperature compared to when the temperature of the internal combustion engine is higher than the threshold temperature, since the motoring is started.

公开(公告)号：US20230417197A1

公开(公告)日：2023-12-28

申请号：US18033966

申请日：2021-11-02

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Roland DORFMEISTER ,  Marcel KRUPPA ,  Benjamin STEINER

IPC分类号： F02D13/02 ,  F02D41/10 ,  F02D41/00

CPC分类号： F02D13/0269 ,  F02D13/0226 ,  F02D41/10 ,  F02D41/0007 ,  F02D2041/001

摘要： An internal combustion engine may have an intake valve device. A sudden load variation may be carried out in which a torque provided by the internal combustion engine is increased from a first value to a second value which is higher than the first value. While the sudden load variation is being carried out, the intake valve device may be operated according to an operating method different from the second operating method and is thereby closed later than in the second operating method. After the sudden load variation has been carried out, and while the internal combustion engine provides the torque having the second value after the sudden load variation has been carried out, the internal combustion engine may be switched over from the first operating method different from the second operating method to the second operating method.

公开(公告)号：US20230323826A1

公开(公告)日：2023-10-12

申请号：US18024460

申请日：2021-09-29

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Rene WEISS

IPC分类号： F02D35/02 ,  F02D41/24 ,  F02D13/02 ,  G01L23/22

CPC分类号： F02D35/027 ,  F02D41/2451 ,  F02D13/0226 ,  G01L23/222

摘要： A method and control device for automatically identifying knocking in an internal combustion engine, wherein, in a predefined measurement time frame, a signal of the knocking sensor is received and evaluated with respect to a criterion for detecting knocking. A basic threshold value predefined for the identification of knocking is modified by a predefined variable interference factor, which depends on a relative point in time at which an inlet valve of at least one of the cylinders closes in relation to a predefined reference point. A signal based on the sensor signal is only identified as knocking if it reaches at least the modified basic threshold value.

公开(公告)号：US20180266352A1

公开(公告)日：2018-09-20

申请号：US15518029

申请日：2015-10-06

申请人： Continental Automotive GmbH

发明人： Florian Freund ,  Kia Hsu ,  Gernot Schlintl ,  Stefan Boisen

IPC分类号： F02D41/14 ,  F02D13/02 ,  F02D41/00 ,  F02P5/04 ,  F02D17/02

CPC分类号： F02D41/1406 ,  F02D13/0226 ,  F02D17/02 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0087 ,  F02D41/10 ,  F02D41/18 ,  F02D2041/001 ,  F02D2200/1004 ,  F02D2250/21 ,  F02D2250/22 ,  F02P5/045 ,  Y02T10/18 ,  Y02T10/42

摘要： The present disclosure relates to internal combustion engines. The teachings thereof may be embodied in a method for determining a torque reserve for an internal combustion engine during a change of an operating state. The method may include: operating the internal combustion engine in the first operating state; determining a rotational speed; determining a torque; determining an air mass setpoint value based on the rotational speed and the torque in the second operating state; calculating a torque setpoint value depending on the rotational speed and the air mass setpoint value in the first operating state; and determining a torque reserve for the transition from the first operating state to the second operating state using based on the torque and on the torque setpoint value.

公开(公告)号：US09874154B2

公开(公告)日：2018-01-23

申请号：US15258148

申请日：2016-09-07

申请人： HYUNDAI MOTOR COMPANY

发明人： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

IPC分类号： F02D13/04 ,  F02D13/02 ,  F01L13/00

CPC分类号： F02D13/0215 ,  F01L1/053 ,  F01L1/344 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2001/34496 ,  F01L2013/111 ,  F01L2250/02 ,  F01L2800/00 ,  F02D13/0226 ,  F02D13/0261 ,  F02D2200/1002 ,  F02D2200/101 ,  Y02T10/18

摘要： A method for controlling valve timing of an engine includes: classifying control regions depending on an engine speed and an engine load, and applying a maximum duration to an intake valve and controlling a valve overlap in the first control region; advancing an intake valve closing (IVC) timing and applying the maximum duration to the exhaust valve in the second control region; advancing both the IVC timing and an exhaust valve closing (EVC) timing in the third control region; fixing an exhaust valve opening (EVO) timing and approaching the EVC timing to a top dead center (TDC) in the fourth control region; controlling a wide open throttle valve (WOT) and retarding the EVO timing in the fifth control region; and controlling the WOT, advancing the EVO timing, and approaching the EVC timing to the TDC in the sixth control region.

公开(公告)号：US20160258369A1

公开(公告)日：2016-09-08

申请号：US15156878

申请日：2016-05-17

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Alan W. Hayman ,  Robert S. McAlpine ,  Edward J. Keating

IPC分类号： F02D41/00 ,  F02M26/19 ,  F02D13/02 ,  F02M26/39 ,  F02M26/44 ,  F02M35/10 ,  F02M26/03 ,  F02M26/23

CPC分类号： F02D41/0077 ,  F02B27/0268 ,  F02B29/0406 ,  F02B33/00 ,  F02D13/0226 ,  F02D41/0007 ,  F02D41/0082 ,  F02D2041/0017 ,  F02M26/03 ,  F02M26/09 ,  F02M26/15 ,  F02M26/19 ,  F02M26/21 ,  F02M26/23 ,  F02M26/38 ,  F02M26/39 ,  F02M26/43 ,  F02M26/44 ,  F02M35/10045 ,  F02M35/10157 ,  F02M35/10222 ,  F02M35/10255 ,  Y02T10/121 ,  Y02T10/146

摘要： An internal combustion engine comprises a first engine bank and a second engine bank. A first intake valve is disposed in an intake port of a cylinder of the first engine bank, and is configured for metering the first flow of combustion air by periodically opening and closing according to a first intake valve lift and duration characteristic. A variable valve train control mechanism is configured for affecting the first intake valve lift and duration characteristic. Either a lift or duration of the first intake valve is modulated so as to satisfy an EGR control criterion.

摘要翻译： 内燃机包括第一发动机组和第二发动机组。 第一进气阀设置在第一发动机组的气缸的进气口中，并且被配置为根据第一进气门升程和持续时间特性周期性地打开和关闭来计量第一燃烧空气流。 可变气门机构控制机构构造成用于影响第一进气门升程和持续时间特性。 调节第一进气阀的升程或持续时间以满足EGR控制标准。

公开(公告)号：US20160090929A1

公开(公告)日：2016-03-31

申请号：US14890473

申请日：2013-05-14

申请人： Satoru TANAKA ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Satoru TANAKA

IPC分类号： F02D41/00 ,  F02D11/02 ,  F02D13/02 ,  F02D41/30 ,  F02P5/04

CPC分类号： F02D41/0055 ,  F02D11/02 ,  F02D13/0226 ,  F02D21/08 ,  F02D41/0002 ,  F02D41/0005 ,  F02D41/0007 ,  F02D41/12 ,  F02D41/1497 ,  F02D41/3005 ,  F02D2021/083 ,  F02D2041/001 ,  F02D2041/0017 ,  F02P5/045 ,  F02P5/1521 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/46 ,  Y02T10/47

摘要： In response to decrease of a requested torque to a reference value or smaller, a value of a virtual air-fuel ratio that is used in calculation of a target air amount for achieving the requested torque is changed from a first air-fuel ratio to a second air-fuel ratio that is leaner than the first air-fuel ratio. The target air amount is calculated backwards from the requested torque by using the virtual air-fuel ratio. After the value of the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, the target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio. A target EGR rate is calculated by using the virtual air-fuel ratio. The target EGR rate is preferably determined by minimum value selection between a first target value of an EGR rate that is calculated by using the virtual air-fuel ratio, and a second target value of the EGR rate that is calculated by using the target air-fuel ratio.

摘要翻译： 响应于所请求的扭矩减小到参考值或更小，在用于实现所要求的扭矩的目标空气量的计算中使用的虚拟空燃比的值从第一空燃比变为 比第一空气燃料比稀的第二空燃比。 通过使用虚拟空燃比，从所要求的扭矩向后计算目标空气量。 在虚拟空燃比的值从第一空燃比变为第二空燃比之后，将目标空燃比从第一空燃比转换为第二空燃比。 通过使用虚拟空燃比来计算目标EGR率。 目标EGR率优选地通过使用虚拟空燃比计算的EGR率的第一目标值与通过使用目标空燃比计算的EGR率的第二目标值之间的最小值选择来确定， 燃料比。

公开(公告)号：US20160076471A1

公开(公告)日：2016-03-17

申请号：US14851033

申请日：2015-09-11

申请人： Ethan E. Bayer ,  Ayman Ismail ,  David A. Lawrence

发明人： Ethan E. Bayer ,  Ayman Ismail ,  David A. Lawrence

IPC分类号： F02D41/00 ,  F02D13/02 ,  F02B75/22 ,  F02D41/14

CPC分类号： F02D41/0082 ,  F01L1/34 ,  F01L2013/111 ,  F01L2800/11 ,  F01L2820/041 ,  F01L2820/042 ,  F02B75/22 ,  F02D13/0226 ,  F02D13/0238 ,  F02D41/0085 ,  F02D41/1405 ,  F02D41/1443 ,  F02D41/1454 ,  F02D41/2451 ,  F02D41/2454 ,  F02D2041/001 ,  F02D2200/0411 ,  Y02T10/18

摘要： An engine bank-to-bank airflow balancing technique includes calculating current and offset volumetric efficiencies of the engine and calculating a slope representing (i) a difference between the offset and current volumetric efficiencies and (ii) a difference between offset and current intake camshaft positions. Based on the respective exhaust gas oxygen concentrations, the technique involves calculating a volumetric efficiency correction corresponding to each cylinder bank and based on the slope and the volumetric efficiency corrections, calculating target intake camshaft position shifts. The technique further involves controlling offsets of the intake camshafts based on the target intake camshaft position shifts. After a predetermined number of target intake camshaft position shifts are determined and stored with respect to various combinations of engine speed and a ratio of intake manifold pressure to barometric pressure, final intake camshaft position shifts may be determined and utilized when determining the intake camshaft positions.

摘要翻译： 发动机库对空气流平衡技术包括计算发动机的当前和偏移体积效率并计算斜率，其表示（i）偏移和当前体积效率之间的差异，以及（ii）偏置和当前进气凸轮轴位置之间的差异 。 基于相应的废气氧浓度，该技术涉及计算对应于每个气缸组的体积效率校正，并且基于斜率和体积效率校正，计算目标进气凸轮轴位置偏移。 该技术还涉及基于目标进气凸轮轴位置偏移来控制进气凸轮轴的偏移。 在相对于发动机转速和进气歧管压力与大气压力的比例的各种组合来确定和存储预定数量的目标进气凸轮轴位置偏移之后，可以在确定进气凸轮轴位置时确定和利用最终进气凸轮轴位置偏移。

公开(公告)号：US09181914B2

公开(公告)日：2015-11-10

申请号：US14238136

申请日：2012-07-05

申请人： Cosimo Carvignese ,  Roberto Finizio ,  Fabio Borean ,  Marco Cuniberti

发明人： Cosimo Carvignese ,  Roberto Finizio ,  Fabio Borean ,  Marco Cuniberti

IPC分类号： F02B63/00 ,  F02N11/00 ,  B60K6/24 ,  B60K6/485 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W30/18 ,  F02M25/07 ,  F02D13/02 ,  F02D29/02 ,  F02D41/04 ,  F02D41/12 ,  F01L1/08 ,  F01L9/02 ,  F02D41/00 ,  F01L1/18 ,  F01L1/26

CPC分类号： F02N11/003 ,  B60K6/22 ,  B60K6/24 ,  B60K6/485 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W30/18072 ,  B60W2510/1005 ,  B60W2510/101 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2710/0633 ,  B60Y2300/525 ,  F01L1/08 ,  F01L1/185 ,  F01L1/267 ,  F01L9/025 ,  F01L2105/00 ,  F01L2820/01 ,  F02D13/0226 ,  F02D13/0261 ,  F02D29/02 ,  F02D41/0002 ,  F02D41/042 ,  F02D41/123 ,  F02D2041/001 ,  F02M26/01 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/48 ,  Y02T10/6226 ,  Y02T10/6286 ,  Y02T10/6295

摘要： In a vehicle provided with a power propulsion system of the mild-hybrid type, a BAS unit—including an electric machine connected through a belt transmission to the shaft of an internal combustion engine—is exploited as the only propulsion engine of the vehicle in given operating conditions. The internal combustion engine is provided with a system for variable actuation of the intake valves which is controlled to reduce the pumping losses of the internal combustion engine in the phase in which such engine is in cut-off condition and it is driven by the aforementioned BAS unit. It is also provided for that the system for variable actuation of the intake valves be controlled to temporarily increase the pumping losses of the internal combustion engine in a phase in which it is required to accelerate the switching off of the engine.

摘要翻译： 在设置有轻度混合型动力推进系统的车辆中，将包括通过皮带传动装置连接到内燃机的轴的电机的BAS单元用作给定的车辆的唯一推进发动机 运行条件。 内燃机设置有用于可变致动进气门的系统，该系统被控制以在发动机处于截止状态的相位中减少内燃机的泵送损耗，并且由前述的BAS驱动 单元。 还设置了用于可变致动进气门的系统，以便在需要加速发动机关闭的阶段中暂时增加内燃机的泵送损耗。