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    SYSTEM AND METHOD FOR CONTROLLING TORQUE OUTPUT OF AN ENGINE WHEN A WATER PUMP COUPLED TO THE ENGINE IS SWITCHED ON OR OFF
    3.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING TORQUE OUTPUT OF AN ENGINE WHEN A WATER PUMP COUPLED TO THE ENGINE IS SWITCHED ON OR OFF 有权
    当与发动机相连的水泵开关时，用于控制发动机扭矩输出的系统和方法

    公开(公告)号：US20140172273A1

    公开(公告)日：2014-06-19

    申请号：US13713805

    申请日：2012-12-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Stephen Paul Levijoki ,  Christopher Harold Knieper

    IPC: F02D41/04

    CPC classification number: F02D41/083 ,  F02D41/04 ,  F02D41/08 ,  F02D41/1497 ,  F02D2250/22 ,  F02P5/1504

    Abstract: A system according to the principles of the present disclosure includes a pump control module, an actuator control module, and a torque reserve module. The pump control module switches a water pump between on and off. The water pump circulates coolant through an engine when the water pump is on. The actuator control module controls a first actuator of the engine based on a first torque request and that controls a second actuator of the engine based on a second torque request. The torque reserve module adjusts a torque reserve before the water pump is switched on or off based on a change in engine load expected when the water pump is switched on or off. The torque reserve is a difference between the first torque request and the second torque request

    Abstract translation: 根据本公开的原理的系统包括泵控制模块，致动器控制模块和扭矩储备模块。 泵控制模块在打开和关闭之间切换水泵。 当水泵打开时，水泵将冷却剂循环通过发动机。 致动器控制模块基于第一扭矩请求控制发动机的第一致动器，并且基于第二扭矩请求来控制发动机的第二致动器。 在水泵开启或关闭之前，扭矩储备模块根据发动机负荷变化启动或关闭水泵时调整扭矩储备。 扭矩储备是第一扭矩请求和第二扭矩请求之间的差值

    System and method for diagnosing a fault in an oxygen sensor based on ambient temperature
    4.
    发明授权
    System and method for diagnosing a fault in an oxygen sensor based on ambient temperature 有权
    基于环境温度诊断氧传感器故障的系统和方法

    公开(公告)号：US09453472B2

    公开(公告)日：2016-09-27

    申请号：US14074790

    申请日：2013-11-08

    Applicant: GM Global Technology Operations LLC

    Inventor： Stephen Paul Levijoki ,  Scott Jeffrey

    IPC: F02D41/30 ,  F02D41/14

    CPC classification number: F02D41/1495 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D2200/0414 ,  F02D2200/101

    Abstract: A system according to the principles of the present disclosure includes an error count module and a sensor diagnostic module. The error count module increases an error count when an actual air/fuel ratio generated by an oxygen sensor monitoring an exhaust system of an engine is different than a desired air/fuel ratio. The error count module selectively adjusts a rate at which the error count is increased based on an ambient temperature. The sensor diagnostic module diagnoses a fault in the oxygen sensor when the error count is greater than a first predetermined count.

    Abstract translation: 根据本公开的原理的系统包括错误计数模块和传感器诊断模块。 当由监测发动机的排气系统的氧气传感器产生的实际空气/燃料比不同于期望的空气/燃料比时，误差计数模块增加错误计数。 错误计数模块根据环境温度选择性地调整误差计数增加的速率。 当误差计数大于第一预定计数时，传感器诊断模块诊断氧传感器中的故障。

    Exhaust gas oxygen sensor fault detection systems and methods using fuel vapor purge rate
    6.
    发明授权
    Exhaust gas oxygen sensor fault detection systems and methods using fuel vapor purge rate 有权
    废气氧传感器故障检测系统和使用燃料蒸汽吹扫速率的方法

    公开(公告)号：US09057338B2

    公开(公告)日：2015-06-16

    申请号：US13673325

    申请日：2012-11-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Stephen Paul Levijoki ,  Paul William Rasmussen

    IPC: F02D41/22 ,  F02D41/14 ,  F02D41/00 ,  F02D41/02

    CPC classification number: F02D41/1441 ,  F02D41/0042 ,  F02D41/0295 ,  F02D41/1458 ,  F02D41/1495

    Abstract: A diagnostic system for a vehicle includes an error module, an equivalence ratio (EQR) module, a threshold determination module, and a fault indication module. The error module determines an error value based on a difference between an amount of oxygen in exhaust measured by an exhaust gas oxygen sensor (EGO) upstream of a catalyst and an expected value of the amount. The EQR module selectively controls fuel injection based on the error value. The threshold determination module determines an error threshold based on a flow rate of fuel vapor from a vapor canister to an intake manifold of an engine. The fault indication module selectively indicates that a fault is present in the EGO sensor based on the error value and the error threshold.

    Abstract translation: 一种用于车辆的诊断系统包括错误模块，等效比（EQR）模块，阈值确定模块和故障指示模块。 误差模块基于由催化剂上游的废气氧传感器（EGO）测量的排气中的氧气量与预期值之间的差异来确定误差值。 EQR模块根据误差值选择性地控制燃油喷射。 阈值确定模块基于从蒸汽罐到发动机的进气歧管的燃料蒸汽的流量来确定误差阈值。 故障指示模块根据误差值和误差阈值选择性地指示EGO传感器中存在故障。

    System and method for controlling torque output of an engine when a water pump coupled to the engine is switched on or off
    8.
    发明授权
    System and method for controlling torque output of an engine when a water pump coupled to the engine is switched on or off 有权
    当连接到发动机的水泵被打开或关闭时，用于控制发动机的扭矩输出的系统和方法

    公开(公告)号：US09086026B2

    公开(公告)日：2015-07-21

    申请号：US13713805

    申请日：2012-12-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Stephen Paul Levijoki ,  Christopher Harold Knieper

    IPC: F02M3/00 ,  F02D11/10 ,  F02D41/08 ,  F02D41/04 ,  F02D41/14 ,  F02P5/15

    CPC classification number: F02D41/083 ,  F02D41/04 ,  F02D41/08 ,  F02D41/1497 ,  F02D2250/22 ,  F02P5/1504

    Abstract: A system according to the principles of the present disclosure includes a pump control module, an actuator control module, and a torque reserve module. The pump control module switches a water pump between on and off. The water pump circulates coolant through an engine when the water pump is on. The actuator control module controls a first actuator of the engine based on a first torque request and that controls a second actuator of the engine based on a second torque request. The torque reserve module adjusts a torque reserve before the water pump is switched on or off based on a change in engine load expected when the water pump is switched on or off. The torque reserve is a difference between the first torque request and the second torque request.

    Abstract translation: 根据本公开的原理的系统包括泵控制模块，致动器控制模块和扭矩储备模块。 泵控制模块在打开和关闭之间切换水泵。 当水泵打开时，水泵将冷却剂循环通过发动机。 致动器控制模块基于第一扭矩请求控制发动机的第一致动器，并且基于第二扭矩请求来控制发动机的第二致动器。 在水泵开启或关闭之前，扭矩储备模块根据发动机负荷变化启动或关闭水泵时调整扭矩储备。 扭矩储备是第一扭矩请求和第二扭矩请求之间的差值。

    EXHAUST GAS OXYGEN SENSOR FAULT DETECTION SYSTEMS AND METHODS USING FUEL VAPOR PURGE RATE
    9.
    发明申请
    EXHAUST GAS OXYGEN SENSOR FAULT DETECTION SYSTEMS AND METHODS USING FUEL VAPOR PURGE RATE 有权
    废气氧传感器故障检测系统和使用燃料蒸气渗透率的方法

    公开(公告)号：US20140130785A1

    公开(公告)日：2014-05-15

    申请号：US13673325

    申请日：2012-11-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Stephen Paul Levijoki ,  Paul William Rasmussen

    IPC: F02D45/00

    CPC classification number: F02D41/1441 ,  F02D41/0042 ,  F02D41/0295 ,  F02D41/1458 ,  F02D41/1495

    Abstract: A diagnostic system for a vehicle includes an error module, an equivalence ratio (EQR) module, a threshold determination module, and a fault indication module. The error module determines an error value based on a difference between an amount of oxygen in exhaust measured by an exhaust gas oxygen sensor (EGO) upstream of a catalyst and an expected value of the amount. The EQR module selectively controls fuel injection based on the error value. The threshold determination module determines an error threshold based on a flow rate of fuel vapor from a vapor canister to an intake manifold of an engine. The fault indication module selectively indicates that a fault is present in the EGO sensor based on the error value and the error threshold.

    Abstract translation: 一种用于车辆的诊断系统包括错误模块，等效比（EQR）模块，阈值确定模块和故障指示模块。 误差模块基于由催化剂上游的废气氧传感器（EGO）测量的排气中的氧气量与预期值之间的差异来确定误差值。 EQR模块根据误差值选择性地控制燃油喷射。 阈值确定模块基于从蒸汽罐到发动机的进气歧管的燃料蒸汽的流量来确定误差阈值。 故障指示模块根据误差值和误差阈值选择性地指示EGO传感器中存在故障。

    SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED ON ENGINE SPEED
    10.
    发明申请
    SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN AN OXYGEN SENSOR BASED ON ENGINE SPEED 有权
    用于诊断基于发动机转速的氧传感器故障的系统和方法

    公开(公告)号：US20140033812A1

    公开(公告)日：2014-02-06

    申请号：US13672231

    申请日：2012-11-08

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Stephen Paul Levijoki ,  Thomas J. Majcher ,  Scott Jeffrey ,  John W. Siekkinen

    IPC: G01M15/10

    CPC classification number: G01M15/10 ,  F01N11/00 ,  F01N11/007 ,  F02D41/1454 ,  F02D41/1495 ,  F02D41/222 ,  G01N27/4175 ,  G01N33/007 ,  Y02T10/40

    Abstract: A system according to the principles of the present disclosure includes an error count module and a sensor diagnostic module. The error count module increases an error count when an actual air/fuel ratio is different from a desired air/fuel ratio and selectively adjusts the error count based on an actual engine speed. An oxygen sensor generates a signal indicating the actual air/fuel ratio. The sensor diagnostic module diagnoses a fault in the oxygen sensor when the error count is greater than a first predetermined count.

    Abstract translation: 根据本公开的原理的系统包括错误计数模块和传感器诊断模块。 当实际空燃比与期望的空燃比不同时，误差计数模块增加误差计数，并根据实际发动机转速有选择地调整误差计数。 氧气传感器产生指示实际空气/燃料比的信号。 当误差计数大于第一预定计数时，传感器诊断模块诊断氧传感器中的故障。

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