-
公开(公告)号：US20170370309A1
公开(公告)日：2017-12-28
申请号：US15298542
申请日：2016-10-20
CPC分类号： F02D41/0087 , B60W10/023 , B60W10/06 , B60W30/188 , B60W2710/025 , F02D17/02 , F02D37/02 , F02D41/0215 , F02D2041/001 , F02D2250/21 , F02P5/145 , F02P5/1504
摘要： A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire and potentially variable displacement operation of an engine. In general, cam first transition strategies are described in which the cam phase is changed to, or close to a target cam phase before a corresponding firing fraction change is implemented. When the cam phase change associated with a desired firing fraction change is relatively large, the firing fraction change is divided into a series of two or more firing fraction change steps—with each step using a cam first transition approach. A number of intermediate target selection schemes are described as well.
-
公开(公告)号：US20190170074A1
公开(公告)日：2019-06-06
申请号：US16270349
申请日：2019-02-07
发明人： Mark A. SHOST , Louis J. SERRANO , Steven E. CARLSON , Vijay SRINIVASAN , Eric J. DEFENDERFER , Nitish J. WAGH , Randall S. BEIKMANN , Jinbiao LI , Xin YUAN , Li-Chun CHIEN
摘要： In one aspect, a skip fire engine controller is described. The skip fire engine controller includes a skip fire module arranged to determine an operational firing fraction and associated cylinder load for delivering a desired engine output. The skip fire engine controller also includes a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction. Various methods, modules, lookup tables and arrangements related to the selection of a suitable operational firing fraction are also described.
-
3.发明申请公开(公告)号：US20150260117A1
公开(公告)日：2015-09-17
申请号：US14638908
申请日：2015-03-04
发明人： Mark A. SHOST , Louis J. SERRANO , Steven E. CARLSON , Vijay SRINIVASAN , Eric J. DEFENDERFER , Nitish J. WAGH , Randall S. BEIKMANN , Jinbiao LI , Xin YUAN , Li-Chun CHIEN
CPC分类号： F02D41/0087 , F02D17/02 , F02D41/0225 , F02D41/1406 , F02D41/2422 , F02D2200/101
摘要： In one aspect, a skip fire engine controller is described. The skip fire engine controller includes a skip fire module arranged to determine an operational firing fraction and associated cylinder load for delivering a desired engine output. The skip fire engine controller also includes a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction. Various methods, modules, lookup tables and arrangements related to the selection of a suitable operational firing fraction are also described.
摘要翻译： 在一个方面，描述了一个跳过消防车控制器。 跳过消防车控制器包括跳过火模块，其被布置成确定用于输送所需发动机输出的操作点火分数和相关联的气缸负载。 跳过消防车控制器还包括点火控制器，其布置成以能够提供所选择的操作射击分数的跳火方式来引导点火。 还描述了与选择合适的操作射击分数有关的各种方法，模块，查找表和布置。
-
公开(公告)号：US20180179970A1
公开(公告)日：2018-06-28
申请号：US15902685
申请日：2018-02-22
IPC分类号： F02D41/00 , F02D41/02 , F02D37/02 , F02D17/02 , B60W30/188 , B60W10/06 , B60W10/02 , F02P5/15
CPC分类号： F02D41/0087 , B60W10/023 , B60W10/06 , B60W30/1886 , B60W2710/025 , F02D17/026 , F02D37/02 , F02D41/0215 , F02D2041/001 , F02D2250/21 , F02P5/1504
摘要： A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire or other dynamic firing level modulation operation of an engine. In general, actuator first transition strategies are described in which an actuator position (e.g., cam phase, TCC slip, etc.) is changed to, or close to a target position before a corresponding firing fraction change is implemented. When the actuator change associated with a desired firing fraction change is relatively large, the firing fraction change is divided into a series of two or more firing fraction change steps. A number of intermediate target selection schemes are described as well.
-
公开(公告)号：US20210199061A1
公开(公告)日：2021-07-01
申请号：US17183856
申请日：2021-02-24
发明人： Jerry F. FUSCHETTO , Matthew A. YOUNKINS , Ihab S. SOLIMAN , Mark A. WILCUTTS , Steven E. CARLSON , Louis J. SERRANO
摘要： Various methods and arrangements for improving fuel economy and noise, vibration, and harshness (NVH) in a skip fire controlled engine are described. An engine controller dynamically selects a gas spring type for a skipped firing opportunity. Determination of the skip/fire pattern and gas spring type may be made on a firing opportunity by firing opportunity basis.
-
公开(公告)号：US20170342922A1
公开(公告)日：2017-11-30
申请号：US15679498
申请日：2017-08-17
CPC分类号： F02D41/0087 , F02D41/0002 , F02D41/1498 , F02D41/3058 , F02D41/307 , F02D2041/0012 , Y02T10/42
摘要： Methods, devices, estimators, controllers and algorithms are described for estimating the torque profile of an engine and/or for controlling torque applied to a powertrain by one or more devices other than the engine itself to manage the net torque applied by the engine and other device(s) in manners that reduce undesirable NVH. The described approaches are particularly well suitable for use in hybrid vehicles in which the engine is operated in a skip fire or other dynamic firing level modulation manner—however they may be used in a variety of other circumstances as well. In some embodiments, the hybrid vehicle includes a motor/generator that applies the smoothing torque.
-
公开(公告)号：US20150232103A1
公开(公告)日：2015-08-20
申请号：US14704630
申请日：2015-05-05
CPC分类号： F02D41/0087 , B60W10/02 , B60W10/026 , B60W10/06 , B60W30/20 , F02D11/105 , F02D13/06 , F02D29/02 , F02D41/022 , F02D41/123 , F02D41/18 , F02D2250/18 , F02P5/1512 , F16H61/143 , F16H2061/145 , Y10T477/73
摘要： A variety of methods and arrangements for determining conditions when an engine-decoupling friction interface may be locked-up during skip-fire operation of an internal combustion engine are described. In some embodiments, the engine-decoupling friction interface is the lockup clutch of a torque converter situated in a powertrain that transmits motive power from the engine to a wheel. Rotation of the wheel causes vehicle motion.
摘要翻译： 描述了用于在内燃机的跳火操作期间当发动机分离摩擦界面被锁定时确定条件的各种方法和装置。 在一些实施例中，发动机分离摩擦界面是位于动力传动系中的变矩器的锁止离合器，其将动力从发动机传递到车轮。 车轮的旋转会导致车辆运动。
-
公开(公告)号：US20200318566A1
公开(公告)日：2020-10-08
申请号：US16839651
申请日：2020-04-03
摘要： An internal combustion engine operates so that it delivers zero or negative torque. The engine operates in either a deceleration cylinder cut off (DCCO) mode or skip cylinder compression braking mode. In the skip cylinder compression braking mode, selected working cycles of selected working chambers are operated in a compression release braking mode. Accordingly, individual working chambers are sometimes not fired and sometimes operated in the compression release braking mode while the engine is operating in the skip cylinder compression braking mode.
-
公开(公告)号：US20180043893A1
公开(公告)日：2018-02-15
申请号：US15792175
申请日：2017-10-24
IPC分类号： B60W30/188 , B60W10/06 , B60W10/02
CPC分类号： B60W30/1882 , B60W10/023 , B60W10/06 , B60W30/188 , B60W2710/025 , B60W2710/0677 , F02D17/02 , F02D37/02 , F02D41/0002 , F02D41/0087 , F02D41/0215 , F02D2041/001 , F02D2250/21 , F02P5/145 , F02P5/1504 , F02P9/002 , Y02T10/42
摘要： A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire or dynamic firing level modulation operation of an engine. In general, actuator first transition strategies are described in which an actuator position (e.g., cam phase, TCC slip, etc.) is changed to, or close to a target position before a corresponding firing fraction change is implemented. When the actuator change associated with a desired firing fraction change is relatively large, the firing fraction change is divided into a series of two or more firing fraction change steps. A number of intermediate target selection schemes are described as well.
-
公开(公告)号：US20170369063A1
公开(公告)日：2017-12-28
申请号：US15288847
申请日：2016-10-07
CPC分类号： F02D41/0087 , B60W10/023 , B60W10/06 , B60W30/188 , B60W2710/025 , F02D17/02 , F02D37/02 , F02D41/0215 , F02D2041/001 , F02D2250/21 , F02P5/145 , F02P5/1504
摘要： A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire and potentially variable displacement operation of an engine. In general, actuator first transition strategies are described in which an actuator position (e.g., cam phase, TCC slip, etc.) is changed to, or close to a target position before i corresponding firing fraction change is implemented. When the actuator change associated with a desired firing fraction change is relatively large, the firing fraction change is divided into a series of two or more firing fraction change steps. A number of intermediate target selection schemes are described as well.
-
-
-
-
-
-
-
-
-
搜索结果
33 条记录 (耗时 0.02 秒)
