-
公开(公告)号：US20180328294A1
公开(公告)日：2018-11-15
申请号：US15594176
申请日：2017-05-12
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , Bin Xu , Gionata Cimini
CPC classification number: F02D41/0002 , F02D11/10 , F02D11/105 , F02D41/1406 , F02D41/30 , F02D2041/1412 , F02D2041/1417 , F02D2041/1418 , F02D2041/1433 , G05B13/048
Abstract: A vehicle throttle control system includes a torque control system providing a desired torque for a throttle valve. A conversion module converts the desired torque to a desired throttle area and converts the desired throttle area to a target throttle position. A selection module determines which one of multiple MPC controllers should be used based on a current position of the throttle valve. A prediction module determines future state values using a mathematical model of a throttle body. A cost module determines a first cost for a first set of MPC target throttle duty cycle values. A control module identifies optimal sets of target throttle motor duty cycle values for each of the MPC controllers. The multiple MPC controllers control operation of a throttle valve duty cycle to achieve a target throttle opening area based on a first one of the target throttle motor duty cycle values.
-
公开(公告)号：US10273900B2
公开(公告)日：2019-04-30
申请号：US15421547
申请日：2017-02-01
Applicant: GM Global Technology Operations LLC
IPC: F02D41/24 , F02B37/18 , F02D41/00 , F02D41/14 , F02D43/04 , F02P5/04 , F02D11/10 , F02D37/02 , H01T13/00 , F02P5/15
Abstract: A method to determine reference actuator positions for a gasoline engine, includes entering a base torque request, a known spark advance, a known CAM position and a known exhaust gas recirculation (EGR) valve position into an inverse torque model to generate a first iteration desired air per cylinder (APC) value. The first iteration desired APC value is passed through a deadband filter to produce a filtered first iteration desired APC signal. A Predicted As Cal (PAC) spark advance is calculated for the filtered first iteration desired APC value. The PAC spark advance and the base torque request are modified, and data from a first lookup table is entered to generate a second iteration desired APC value.
-
公开(公告)号：US10436140B2
公开(公告)日：2019-10-08
申请号：US15465909
申请日：2017-03-22
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , David N. Hayden , Christopher E. Whitney
Abstract: A method of controlling intake and exhaust cam phase in an internal combustion engine includes sensing an engine speed and an engine load of the internal combustion engine, sensing or estimating a wall temperature of a cylinder of the internal combustion engine, utilizing the engine speed and the engine load in one or more lookup tables based on the cylinder wall temperature to determine intake phaser constraint values and exhaust phaser constraint values for cold operation of the internal combustion engine, and transitioning the intake phaser constraint values and the exhaust phaser constraint values for cold operation to intake phaser constraint values and exhaust phaser constraint values based on one or more lookup tables for normal hot operation of the internal combustion engine.
-
公开(公告)号：US20180230864A1
公开(公告)日：2018-08-16
申请号：US15429219
申请日：2017-02-10
Applicant: GM Global Technology Operations LLC
Inventor： Christopher E. Whitney , David N. Hayden , Nicola Pisu , Stephen P. Levijoki
CPC classification number: F01L1/344 , F01L1/047 , F01L1/34 , F01L1/46 , F01L2013/116 , F01L2201/00 , F01L2800/00 , F01L2800/05 , F01L2820/044 , F02D13/0219 , F02D13/0261 , F02D41/0062 , F02D41/0072 , F02D41/021 , F02D41/04 , F02D41/1406 , F02D41/2422 , F02D2041/001 , F02D2041/1412 , F02D2200/021 , F02D2200/0402 , F02D2200/0418 , F02D2200/1002 , F02D2200/101 , F02D2200/602 , F02D2200/70 , Y02T10/18
Abstract: A method of phasing the opening and closing of internal combustion engine intake and exhaust valves relative to the rotation of the crankshaft is based upon changes in engine speed, engine load and ambient relative humidity. During certain conditions of higher humidity, in order to maintain good combustion stability and thus overall engine operation, it is necessary to reduce intake and exhaust valve overlap by adjusting the phase of the intake and exhaust camshafts. This is achieved by utilizing a set of cam position reference values and constraints based upon engine speed, engine load and humidity that are contained in lookup tables that adjust and limit cam position and valve overlap. Generally speaking, in order to maintain optimum engine performance, intake and exhaust valve overlap is reduced with higher ambient humidity and vice versa.
-
公开(公告)号：US20180216563A1
公开(公告)日：2018-08-02
申请号：US15421547
申请日：2017-02-01
Applicant: GM Global Technology Operations LLC
CPC classification number: F02D41/2464 , F02B37/183 , F02D11/105 , F02D37/02 , F02D41/0077 , F02D41/1401 , F02D41/1406 , F02D41/2422 , F02D43/04 , F02D2041/001 , F02D2041/1432 , F02D2041/1433 , F02D2041/1434 , F02D2200/1006 , F02D2250/18 , F02P5/045 , F02P5/1504 , F02P5/1506 , F02P5/1516 , H01T13/00 , Y02T10/144
Abstract: A method to determine reference actuator positions for a gasoline engine, includes entering a base torque request, a known spark advance, a known CAM position and a known exhaust gas recirculation (EGR) valve position into an inverse torque model to generate a first iteration desired air per cylinder (APC) value. The first iteration desired APC value is passed through a deadband filter to produce a filtered first iteration desired APC signal. A Predicted As Cal (PAC) spark advance is calculated for the filtered first iteration desired APC value. The PAC spark advance and the base torque request are modified, and data from a first lookup table is entered to generate a second iteration desired APC value.
-
Patent Agency Ranking
公开(公告)号：US09932909B1
公开(公告)日：2018-04-03
申请号：US15439140
申请日：2017-02-22
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , David N. Hayden , Pulasti Bandara , Christopher E. Whitney
CPC classification number: F02D13/0219 , B60H1/00764 , B60H1/04 , F02D9/02 , F02D41/0007 , F02D41/0077 , F02D41/2422 , F02D2041/001 , F02D2200/1002 , F02D2200/101 , F02D2200/60 , F02D2250/18
Abstract: A method of controlling intake and exhaust cam phase in an internal combustion engine for optimal HVAC performance in a motor vehicle includes requesting a cabin heating value, sensing an engine speed and an engine load of the internal combustion engine, utilizing the cabin heating value, the engine speed and the engine load in one or more lookup tables to determine intake phaser constraint values and exhaust phaser constraint values for cabin heating, and transitioning the intake phaser constraint values and the exhaust phaser constraint values for cabin heating to intake phaser constraint values and exhaust phaser constraint values based on one or more lookup tables for normal operation without a cabin heating request.
-
公开(公告)号：US10287994B2
公开(公告)日：2019-05-14
申请号：US15594176
申请日：2017-05-12
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , Bin Xu , Gionata Cimini
Abstract: A vehicle throttle control system includes a torque control system providing a desired torque for a throttle valve. A conversion module converts the desired torque to a desired throttle area and converts the desired throttle area to a target throttle position. A selection module determines which one of multiple MPC controllers should be used based on a current position of the throttle valve. A prediction module determines future state values using a mathematical model of a throttle body. A cost module determines a first cost for a first set of MPC target throttle duty cycle values. A control module identifies optimal sets of target throttle motor duty cycle values for each of the MPC controllers. The multiple MPC controllers control operation of a throttle valve duty cycle to achieve a target throttle opening area based on a first one of the target throttle motor duty cycle values.
-
公开(公告)号：US10167746B2
公开(公告)日：2019-01-01
申请号：US15429219
申请日：2017-02-10
Applicant: GM Global Technology Operations LLC
Inventor： Christopher E. Whitney , David N. Hayden , Nicola Pisu , Stephen P. Levijoki
Abstract: A method of phasing the opening and closing of internal combustion engine intake and exhaust valves relative to the rotation of the crankshaft is based upon changes in engine speed, engine load and ambient relative humidity. During certain conditions of higher humidity, in order to maintain good combustion stability and thus overall engine operation, it is necessary to reduce intake and exhaust valve overlap by adjusting the phase of the intake and exhaust camshafts. This is achieved by utilizing a set of cam position reference values and constraints based upon engine speed, engine load and humidity that are contained in lookup tables that adjust and limit cam position and valve overlap. Generally speaking, in order to maintain optimum engine performance, intake and exhaust valve overlap is reduced with higher ambient humidity and vice versa.
-
公开(公告)号：US20180274473A1
公开(公告)日：2018-09-27
申请号：US15465909
申请日：2017-03-22
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , David N. Hayden , Christopher E. Whitney
CPC classification number: F02D41/2409 , F01L1/04 , F01L1/34 , F01L2800/00 , F01L2800/02 , F02D13/0203 , F02D13/0219 , F02D41/0007 , F02D41/005 , F02D41/064 , F02D41/1406 , F02D41/2422 , F02D2013/0292 , F02D2041/001 , F02D2041/0017 , F02D2041/002 , F02D2041/1412 , F02D2041/1433 , F02D2200/021 , F02D2200/101 , F02D2250/18 , F02M26/04
Abstract: A method of controlling intake and exhaust cam phase in an internal combustion engine includes sensing an engine speed and an engine load of the internal combustion engine, sensing or estimating a wall temperature of a cylinder of the internal combustion engine, utilizing the engine speed and the engine load in one or more lookup tables based on the cylinder wall temperature to determine intake phaser constraint values and exhaust phaser constraint values for cold operation of the internal combustion engine, and transitioning the intake phaser constraint values and the exhaust phaser constraint values for cold operation to intake phaser constraint values and exhaust phaser constraint values based on one or more lookup tables for normal hot operation of the internal combustion engine.
-
公开(公告)号：US10001073B2
公开(公告)日：2018-06-19
申请号：US15164142
申请日：2016-05-25
Applicant: GM Global Technology Operations LLC
Inventor： J. Michael Gwidt , Robert E. Heger , Robert J. Genslak , Stephen P. Levijoki , Edward Stuteville
IPC: F02D41/02 , B60W20/16 , B60K6/24 , B60W10/06 , B60W10/08 , F01N3/20 , F01N11/00 , F02D41/26 , F02N11/08 , F02P5/04 , F02P5/15
CPC classification number: F02D41/0255 , B60K6/24 , B60K13/04 , B60W10/06 , B60W10/08 , B60W20/16 , B60W2540/10 , B60Y2200/92 , B60Y2300/474 , F01N3/2006 , F01N3/2033 , F01N9/00 , F01N11/002 , F01N2430/06 , F01N2550/02 , F01N2590/11 , F01N2900/08 , F01N2900/12 , F01N2900/1602 , F02D37/02 , F02D41/009 , F02D41/26 , F02D2200/0802 , F02N11/0814 , F02P5/045 , F02P5/1502 , F02P5/1506 , Y02A50/2322 , Y02T10/26 , Y02T10/46 , Y02T10/47 , Y02T10/48 , Y10S903/905
Abstract: A catalyst control system includes a stop and start module that, during a period that the vehicle is ON between (i) a first time when the vehicle is turned ON and (i) a second time when the vehicle is next turned OFF, selectively shuts down and starts a spark ignition engine of the vehicle. A catalyst light off (CLO) control module initiates a first CLO event for a first engine startup during the period and, when a temperature of a catalyst that receives exhaust output by the engine is less than a predetermined temperature, selectively initiates a second CLO event for a second engine startup during the period. A fuel control module richens fueling of the engine during the first and second CLO events of the period. A spark control module retards spark timing of the engine during the first and second CLO events of the period.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.017 seconds)
