-
1.发明授权公开(公告)号：US11492992B2
公开(公告)日：2022-11-08
申请号：US16740592
申请日：2020-01-13
申请人： Cummins Inc.
摘要： One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors, an ignition system including a plurality of spark plugs, an intake throttle, and an electronic control system. The electronic control system is configured to control combustion during transient operation of the engine by determining one or more combustion control parameters compensating for variation of one or more of inert matter, unburned air and unburned fuel in EGR output by the dedicated EGR cylinder during transient operation of the engine, and an effect of the EGR loop on inert matter, unburned air and unburned fuel provided to the plurality of cylinders, and controlling operation of at least one of the throttle, the ignition system and the plurality of injectors in response to at least one of the one or more combustion control parameters.
-
公开(公告)号：US20200370454A1
公开(公告)日：2020-11-26
申请号：US16989109
申请日：2020-08-10
申请人： Cummins Inc.
摘要： A method includes acquiring nitrogen oxide (NOx) data indicative of a first amount of NOx in an exhaust flow exiting an engine and a second amount of NOx in the exhaust flow exiting an exhaust aftertreatment system coupled to the engine where the exhaust aftertreatment system including a selective catalytic reduction (SCR) system including a SCR catalyst; determining a NOx conversion efficiency fault is present within the exhaust aftertreatment system based on the first amount of NOx and the second amount of NOx; monitoring an actual amount of NOx in the exhaust flow downstream of the SCR catalyst; determining an expected amount of NOx downstream of the SCR catalyst; and determining the SCR catalyst is responsible for the NOx conversion efficiency fault in response to the actual amount of NOx differing from the expected amount of NOx by more than a threshold amount.
-
公开(公告)号：US10738671B2
公开(公告)日：2020-08-11
申请号：US15866776
申请日：2018-01-10
申请人： Cummins, Inc.
摘要： A method includes interpreting NOx data indicative of an amount of NOx exiting an engine and an amount of NOx exiting an exhaust aftertreatment system coupled to the engine, determining a NOx conversion efficiency fault is present based on the amount of NOx exiting the engine and the amount of NOx exiting the exhaust aftertreatment system, and determining at least one of a selective catalytic reduction (SCR) catalyst of the exhaust aftertreatment system and a diesel particulate filter having a coating of a SCR reaction catalyst (DPF-SCR) of the exhaust aftertreatment system are responsible for the NOx conversion efficiency fault based on at least one of a reductant slip amount and a NOx conversion value across at least one of the SCR catalyst and the DPF-SCR.
-
公开(公告)号：US20170051654A1
公开(公告)日：2017-02-23
申请号：US14830112
申请日：2015-08-19
申请人： Cummins, Inc.
CPC分类号： F01N3/035 , F01N3/0835 , F01N3/0842 , F01N3/103 , F01N3/2066 , F01N11/00 , F01N13/0093 , F01N2550/02 , F01N2560/021 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/1402 , F01N2900/1616 , Y02T10/24 , Y02T10/47
摘要： An apparatus includes a nitrogen oxide (NOx) module and a selective catalytic reduction (SCR) diagnostic module. The NOx module is in exhaust gas communication with an exhaust flow of an exhaust aftertreatment system from an engine. The NOx module is structured to interpret NOx data indicative of an amount of NOx exiting the engine and an amount of NOx exiting the exhaust aftertreatment system, and determine a NOx conversion efficiency fault is present based on the amount of NOx exiting the engine and the amount of NOx exiting the exhaust aftertreatment system. The SCR diagnostic module is structured to determine at least one of a SCR catalyst and a diesel particulate filter including a coating of a SCR reaction catalyst (DPF-SCR) are responsible for the NOx conversion efficiency fault based on at least one of a reductant slip amount and a NOx conversion value across at least one of the SCR catalyst and the DPF-SCR.
摘要翻译： 一种装置包括氮氧化物（NOx）模块和选择性催化还原（SCR）诊断模块。 NOx模块与来自发动机的废气后处理系统的废气排气连通。 NOx模块被构造为解释表示从发动机排出的NOx的量的NO x数据和排出后处理系统的NOx的量，并且基于从发动机排出的NOx的量和数量来确定NOx转化效率的故障 的NOx排出后处理系统。 SCR诊断模块被构造成确定包括SCR反应催化剂（DPF-SCR）的涂层的SCR催化剂和柴油颗粒过滤器中的至少一个基于还原剂滑移中的至少一种负责NOx转化效率故障 数量和跨越SCR催化剂和DPF-SCR中的至少一个的NOx转化值。
-
公开(公告)号：US20150369197A1
公开(公告)日：2015-12-24
申请号：US14307886
申请日：2014-06-18
申请人： Cummins, Inc.
IPC分类号： F02N11/08
CPC分类号： F02N11/0803 , F02N11/0818 , F02N11/0822 , F02N11/0829 , F02N2200/08 , F02N2200/0814 , F02N2200/0815 , F02N2300/2002 , Y02T10/48
摘要： Disclosed are methods, systems, and computer-readable mediums for predicting a driving intention of a driver of a vehicle. A sequence comprising a plurality of indicators is detected, where each indicator suggests intent to drive a vehicle. A separation time between each of the indicators of the sequence is determined. The sequence and determined separation times are compared to historical data, where the historical data comprises data related to previously stored separation times of the sequence. Based on the comparison, a confidence level that an engine of the vehicle will be started is determined. Based on the confidence level, a feature of the vehicle is activated.
摘要翻译： 公开了用于预测车辆驾驶员的驾驶意图的方法，系统和计算机可读介质。 检测包括多个指示符的序列，其中每个指示符表示意图驱动车辆。 确定序列的每个指示符之间的间隔时间。 将序列和确定的分离时间与历史数据进行比较，其中历史数据包括与先前存储的序列分离时间相关的数据。 基于比较，确定车辆的发动机将启动的置信水平。 基于置信水平，车辆的特征被激活。
-
公开(公告)号：US09086025B2
公开(公告)日：2015-07-21
申请号：US13646891
申请日：2012-10-08
申请人： Cummins Inc.
发明人： Ashwin Vyas , Vivek A. Sujan , Andrew W. Osburn , Abdul Ofoli , Govindarajan Kothandaraman , Karim Azizou
CPC分类号： F02D41/0002 , F02D41/18 , F02D41/222 , F02D41/2474
摘要： Systems and methods for correcting mass airflow sensor drift include an operation conditions module to interpret a base calibration function, a MAF sensor input value, and a current operating condition. A MAF correction module determines an expected MAF value in response to the current operating condition and a predetermined operating condition. The MAF correction module will also determine an adjusted MAF value in response to the expected MAF value, the base calibration function, and the MAF sensor input value. A MAF reporting module is structured to provide the adjusted MAF value.
摘要翻译： 用于校正质量气流传感器漂移的系统和方法包括解释基准校准功能，MAF传感器输入值和当前操作条件的操作条件模块。 MAF校正模块响应于当前操作条件和预定操作条件确定预期MAF值。 MAF校正模块还将根据预期的MAF值，基准校准功能和MAF传感器输入值确定经调整的MAF值。 MAF报告模块的结构是提供调整后的MAF值。
-
公开(公告)号：US11682306B2
公开(公告)日：2023-06-20
申请号：US17195336
申请日：2021-03-08
申请人： Cummins Inc.
发明人： Vivek Anand Sujan , Phani Kiran Vajapeyazula , Govindarajan Kothandaraman , Jingxuan Liu , Kenneth M. Follen
CPC分类号： G08G1/22 , B60W30/16 , G05D1/0295 , H04W4/46 , B60W2510/18 , B60W2530/10 , B60W2554/801
摘要： Systems and apparatuses include one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to: determine at least one reason for a deserter to exit a first platoon; determine a deserter position within the first platoon; communicate the deserter exit to the first platoon after determination of the at least one reason for the deserter to exit the first platoon based at least in part on the deserter position; adapt a behavior of the first platoon to allow the deserter to exit the first platoon; and reconfigure the remaining vehicles from the first platoon into a second platoon.
-
公开(公告)号：US10943490B2
公开(公告)日：2021-03-09
申请号：US16173264
申请日：2018-10-29
申请人： Cummins, Inc.
发明人： Vivek Anand Sujan , Phani Kiran Vajapeyazula , Govindarajan Kothandaraman , Jingxuan Liu , Kenneth M. Follen
摘要： Systems and apparatuses include a controller including a circuit structured to communicate with a platoon of vehicles, determine a platoon rank order, determine final separation distances between vehicles, affect operation of each vehicle to achieve the platoon rank order and final separation distances, monitor the platoon of vehicles to determine if a deserter is leaving the platoon of vehicles or if a critical change has occurred, determine an updated platoon rank order, and determine an updated final separation distances between vehicles.
-
公开(公告)号：US10746123B2
公开(公告)日：2020-08-18
申请号：US16106300
申请日：2018-08-21
申请人： Cummins Inc.
摘要： An engine system includes an air handling and fuel system whose states are managed by a reference managing unit. The engine system has a plurality of sensors whose sensor signals at least partially define a current state of the engine system. The reference managing unit includes a controller which controls the air handling and fuel system of the engine system as well as a processing unit coupled to the sensors and the controller. The processing unit includes an agent which learns a policy function that is trained to process the current state, determines air handling references and fuel system references by using the policy function after receiving the current state as an input, and outputs the air handling references and fuel system references to the controller. Then, the agent receives a next state and a reward value from the processing unit and updates the policy function using a policy evaluation algorithm and a policy improvement algorithm based on the received reward value. Subsequently, the controller controls the air handling and fuel system of the engine in response to receiving the air handling references and the fuel system references.
-
10.发明授权公开(公告)号：US10012158B2
公开(公告)日：2018-07-03
申请号：US15363857
申请日：2016-11-29
申请人： Cummins Inc.
CPC分类号： F02D41/0077 , F02D41/0007 , F02D41/005 , F02D41/0052 , F02D41/1402 , F02D41/1448 , F02D41/146 , F02D41/1461 , F02D41/2422 , F02D2041/141 , F02D2041/1412 , F02D2250/36 , F02M26/05 , F02M26/06 , Y02T10/144 , Y02T10/47
摘要： System, apparatus, and methods are disclosed for controlling one or more actuators of an air handling system of an internal combustion engine. The one or more actuators are controlled in response to one or more feedforward references that are adjusted by a reference governor that predicts one or more operating parameters and imposes constraints on the one or more feedforward references to reduce the potential for violating limits on the one or more operating parameters.
-
-
-
-
-
-
-
-
-
搜索结果
57 条记录 (耗时 0.021 秒)
