公开(公告)号：US11965468B2

公开(公告)日：2024-04-23

申请号：US18366228

申请日：2023-08-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shinnosuke Honda ,  Yoshinori Fujitake ,  Suguru Kumazawa ,  Motohiko Taniyama ,  Keita Sato ,  Yuki Iizawa ,  Yoshiyuki Shogenji ,  Yasutaka Tsuchida

IPC: F02D17/02 ,  F02D41/00 ,  F02D41/26

CPC classification number: F02D17/02 ,  F02D41/008 ,  F02D41/26

Abstract: A vehicle control system, a vehicle control method, and a storage medium are provided. A stopping process stops fuel supply to one or more stopping cylinders and supplies fuel to one or more remaining cylinders during a load operation of an engine. During execution of the stopping process, a compensating process compensates for a decrease in output of the one or more stopping cylinders due to the execution of the stopping process by increasing output generated by combustion in the one or more remaining cylinders. The system control circuit causes, when the engine rotation speed of the engine is the same, the output after being increased by the compensating process to decrease as a shaft torque of the crankshaft of the engine increases.

公开(公告)号：US11767797B2

公开(公告)日：2023-09-26

申请号：US17830055

申请日：2022-06-01

Applicant: Cummins Inc.

Inventor： Anant Puri ,  J. Steven Kolhouse ,  Apurva A. Chunodkar

IPC: F02D17/02 ,  B60K6/24 ,  B60K6/26 ,  F02D41/14 ,  F02D41/24

CPC classification number: F02D17/02 ,  B60K6/24 ,  B60K6/26 ,  F02D41/1498 ,  F02D41/2406 ,  B60Y2200/92 ,  B60Y2300/435 ,  F02D2200/0802

Abstract: At least some embodiments of the present disclosure are directed to systems and methods for controlling a cylinder deactivation (CDA) operation for an electrified powertrain, the electrified powertrain comprising an engine and an additional power source, the engine having a plurality of cylinders. The method includes the step of operating the electrified powertrain in a CDA mode and deactivating one or more selected cylinders of the plurality of cylinders; receiving measurement data indicative of operating conditions of the electrified powertrain; analyzing the measurement data to determine whether a predetermined operating condition is met; and adjusting the CDA operation by adjusting the duration of the CDA operation or changing a number of deactivated cylinders.

公开(公告)号：US11761395B2

公开(公告)日：2023-09-19

申请号：US17742070

申请日：2022-05-11

Applicant: Tula Technology, Inc.

Inventor： Vijay Srinivasan

IPC: F01L13/00 ,  F02D13/06 ,  F02D17/02 ,  F02D41/00 ,  F02D41/30 ,  F02D41/40

CPC classification number: F02D41/0087 ,  F02D13/06 ,  F02D17/02 ,  F02D41/307 ,  F02D41/3064 ,  F02D41/401 ,  F01L2013/001 ,  F02D2250/21

Abstract: A variety of methods and arrangements are described for managing transitions between operational states of an internal combustion engine during skip fire operation of the engine.

公开(公告)号：US11719175B2

公开(公告)日：2023-08-08

申请号：US17867797

申请日：2022-07-19

Applicant: Tula Technology, Inc.

Inventor： Louis Joseph Serrano ,  Vijay Srinivasan

IPC: F02D17/02 ,  F02D41/30 ,  F02D41/00

CPC classification number: F02D41/0087 ,  F02D17/02 ,  F02D41/0002 ,  F02D41/3058 ,  F02D2041/0012 ,  F02D2200/101 ,  F02D2250/18

Abstract: Methods, systems, and devices for operating an engine controller in a vehicle for managing motor torque smoothing. One controller is configured to select a periodic disruptive waveform generated over a period of time to approximate that is associated with the vehicle being at idle, determine a first harmonic sinusoid from a group of harmonic sinusoids that reduces the error between an approximated waveform and the disruptive waveform, and initiate a supplemental quantity of torque during the period of time based on the disruption quantity of torque.

公开(公告)号：US11702996B2

公开(公告)日：2023-07-18

申请号：US17651393

申请日：2022-02-16

Applicant: Ford Global Technologies, LLC

Inventor： Aed Dudar

IPC: F02D9/06 ,  F02D23/00 ,  F02D17/02

CPC classification number: F02D9/06 ,  F02D17/02 ,  F02D23/00

Abstract: Methods and systems are provided for engine braking in a vehicle. In one example, a method may include deactivating fueling to at least one cylinder of an engine, increasing an air mass provided to the engine via an electric boosting device, and adjusting an exhaust valve opening timing of the at least one cylinder in response to a request for engine braking. In this way, an amount of engine braking torque may be increased with reduced wear to engine system components.

公开(公告)号：US20190220009A1

公开(公告)日：2019-07-18

申请号：US16361350

申请日：2019-03-22

Applicant: Tula Technology, Inc.

Inventor： Ram SUBRAMANIAN ,  Louis J. SERRANO ,  Matthew A. YOUNKINS

IPC: G05D1/00 ,  B60W30/188 ,  F02D17/02 ,  F02D29/02 ,  F02D11/10 ,  F02D41/14 ,  F02P5/15 ,  F02D41/00

CPC classification number: G05D1/0061 ,  B60W30/1882 ,  F02D11/105 ,  F02D17/02 ,  F02D29/02 ,  F02D41/0087 ,  F02D41/1402 ,  F02D2200/501 ,  F02D2250/18 ,  F02P5/1512 ,  G05D1/0005

Abstract: The present invention relates generally to techniques for improving fuel efficiency of a vehicle powered by an internal combustion engine capable of operating at various displacement levels. An autonomous driving unit or cruise controller selects when possible an engine torque output that corresponds to a fuel efficient displacement level. The resultant vehicle speed profile and NVH level is acceptable to vehicle occupants.

公开(公告)号：US20190072047A1

公开(公告)日：2019-03-07

申请号：US16179628

申请日：2018-11-02

Applicant: Ford Global Technologies, LLC

Inventor： Jeffrey Allen Doering ,  John Eric Rollinger ,  Karen Willard ,  Brett Dryer

IPC: F02D41/00 ,  F02D13/06 ,  F02D13/04 ,  F02D41/26 ,  F02D35/02 ,  F02D17/02 ,  F02D41/14

CPC classification number: F02D41/0087 ,  F02D13/04 ,  F02D13/06 ,  F02D17/02 ,  F02D35/027 ,  F02D41/1406 ,  F02D41/26 ,  F02D2200/0625

Abstract: Systems and methods for operating an engine with a plurality of deactivating valves for deactivating engine cylinders are presented. In one example, a plurality of different cylinder operating modes may be available to operate the engine. Engine fuel consumption in each of the plurality of different cylinder operating modes is estimated and the engine may be operated in the cylinder mode that provides greatest fuel efficiency.

公开(公告)号：US20190048843A1

公开(公告)日：2019-02-14

申请号：US16024914

申请日：2018-07-02

Applicant: Honda Motor Co.,Ltd.

Inventor： Hideyuki HAYASHI ,  Yuto KATORI ,  Hiroki MIYAZONO ,  Daisuke SHIOMI ,  Kentaro ONUMA

IPC: F02P5/04 ,  F02D41/00 ,  F02D17/02

CPC classification number: F02P5/045 ,  F02D17/02 ,  F02D41/0002 ,  F02D41/0025 ,  F02D41/0087 ,  F02D2041/0012 ,  F02D2200/0414 ,  F02D2200/0611 ,  F02D2250/21 ,  F02P5/1504 ,  F02P5/1527

Abstract: A control device of an internal combustion engine is provided. In the case where a switch request for switching from all-cylinder operation to partial-cylinder operation is made, before a switch from the all-cylinder operation to the partial-cylinder operation is executed, an intake air amount increase control increasing an intake air flow rate of an engine by increasing an opening degree of a throttle valve is performed, an ignition timing retardation control retarding an ignition timing is performed, and based on a retardation limit value of the ignition timing at a time point when the switch request is made, a start timing of the intake air amount increase control is changed. As a retardable amount being a difference between an initial ignition timing and the retardation limit value decreases, the start timing of the intake air amount increase control is delayed further.

公开(公告)号：US20180328292A1

公开(公告)日：2018-11-15

申请号：US16035273

申请日：2018-07-13

Applicant: Tula Technology, Inc.

Inventor： Vijay SRINIVASAN ,  Louis J. SERRANO ,  Siamak HASHEMI ,  Robert S. BAILEY ,  Geoffrey ROUTLEDGE

IPC: F02D17/02 ,  F02D41/02 ,  F02D41/00 ,  F02P9/00 ,  F02P5/15 ,  F02D41/24 ,  F02D41/14 ,  F02D41/04

CPC classification number: F02D17/02 ,  F02D41/0087 ,  F02D41/021 ,  F02D41/0225 ,  F02D41/047 ,  F02D41/1406 ,  F02D41/2422 ,  F02D2200/021 ,  F02D2200/025 ,  F02D2200/101 ,  F02D2200/501 ,  F02D2200/702 ,  F02D2250/18 ,  F02P5/1512 ,  F02P9/002

Abstract: A system and method for dynamically varying an amount slippage of a Torque Converter Clutch (TCC) provided between an engine and a transmission of a vehicle in response to non-powertrain factors. By varying a slippage output signal, the amount of TCC slippage between the engine and the transmission can be adjusted. Small amounts of slippage, relative to large amounts of slippage, provide (a) improved vehicle fuel economy, but (b) induce more powertrain noise and vibration in the vehicle cabin. By dynamically adjusting the slippage, a tradeoff between improved fuel economy vs. a satisfying driver experience can be realized.

公开(公告)号：US10082095B2

公开(公告)日：2018-09-25

申请号：US15265658

申请日：2016-09-14

Applicant: Hyundai Motor Company

Inventor： Kyoungchan Han

IPC: F02D41/00 ,  F02D41/26 ,  F02D17/02 ,  F02M26/05

CPC classification number: F02D41/0087 ,  F02D17/02 ,  F02D41/1447 ,  F02D41/26 ,  F02D2200/023 ,  F02D2200/024 ,  F02D2200/0614 ,  F02D2200/0625 ,  F02D2200/0802 ,  F02D2200/101 ,  F02D2200/703 ,  F02M26/05

Abstract: A method for controlling an operation mode of an engine implementing cylinder deactivation (CDA) by a device for controlling an operation mode, may include determining whether a CDA operation is available by using an operation state signal of a vehicle, determining a fuel consumption prediction value or an exhaust temperature prediction value by the CDA operation when the CDA operation is available: and determining whether to enter a CDA mode by using at least one of the fuel consumption prediction value and the exhaust temperature prediction.