81 |
INTAKE PARAMETER-CALCULATING DEVICE FOR INTERNAL COMBUSTION ENGINE AND METHOD OF CALCULATING INTAKE PARAMETER |
US13635382 |
2011-03-02 |
US20130030776A1 |
2013-01-31 |
Toshinori Tsukamoto; Naoki Oie; Masaaki Nagashima |
To provide an intake parameter-calculating device and intake parameter-calculating method for an internal combustion engine, which are capable of accurately calculating intake parameters in a case where an intake throttle valve is provided. The intake parameter-calculating device 1 includes an ECU 2. The ECU 2 calculates an error KTHERRCOR using an error model equation (8) (step 2), and calculates a correction coefficient KTHCOR as the reciprocal of the sum of the error KTHERRCOR and 1 (step 3). The ECU 2 calculates a passing air amount GAIRTH by correcting a basic passing air amount GAIRTHN calculated by an equation (11) using a correction coefficient KTHCOR (step 6). A model parameter A for the error model equation (8) is calculated using equations (14) to (18) by onboard identifying calculation with uniform weighting (steps 48 to 53). |
82 |
SYSTEM AND METHOD FOR OPERATING AN ENGINE |
US15808698 |
2017-11-09 |
US20190136791A1 |
2019-05-09 |
Eric Matthew Kurtz; Brien Lloyd Fulton; Daniel Joseph Rinkevich |
Methods and systems for operating an engine with different fuels having different cetane levels are described. In one example, start of fuel injection timing for engine cylinders may be adjusted responsive to engine deceleration or combustion phase during engine cranking. The start of fuel injection timing may be retarded for higher cetane fuels and advanced for lower cetane fuels. |
83 |
COOLANT TEMPERATURE MODULATION FOR EXHAUST GAS RECIRCULATION SYSTEM |
US15581040 |
2017-04-28 |
US20180313302A1 |
2018-11-01 |
Jaldeep Niranjan Kansara; Arvindkumar Makasana; Juan Carlos Marroquin |
A control system for an exhaust gas recirculation system for an engine is provided. The control system includes an exhaust gas recirculation (EGR) cooler having a coolant flowing therethrough. The control system includes an externally controlled coolant set-point circuit associated with the EGR cooler. The control system also includes a controller communicably coupled to the externally controlled coolant set-point circuit. The controller is configured to receive a first signal indicative of a readiness of the engine to load. The controller is configured to receive a second signal indicative of a temperature of the coolant. The controller is configured to receive a third signal indicative of a first temperature zone associated with the engine. Further, the controller is configured to modulate a set-point temperature of the coolant over a range of temperatures based on the received signals and a temperature gradient of the coolant. |
84 |
Method and apparatus for matching vehicle ECU programming to current vehicle operating conditions |
US13854913 |
2013-04-01 |
US10061745B2 |
2018-08-28 |
Charles Michael McQuade; Bryan Hunt; Dan Mayer |
Disclosed herein are techniques for implementing vehicle ECU reprograming, so the ECU programming, which plays a large role in vehicle performance characteristics, is tailored to current operational requirements, which may be different than the operational characteristics selected by the manufacturer when initially programming the vehicle ECU (or ECUs) with specific instruction sets, such as fuel maps. In one embodiment, a controller monitors the current operational characteristics of the vehicle, determines the current ECU programming, and determines if a different programming set would better suited to the current operating conditions. In the event that the current programming set should be replaced, the controller implements the ECU reprogramming. In a related embodiment, users are enabled to specify the ECU programming to change, such as changing speed limiter settings. |
85 |
METHODS AND SYSTEM FOR OPERATING A VEHICLE WITH A VENTED HOOD AND RAIN TRAY |
US15441034 |
2017-02-23 |
US20180238254A1 |
2018-08-23 |
Matthew Arthur Titus; Jeff Grauer; Jon Holt; Thomas Joseph Ciccone; Mike Makled |
Methods and systems are provided for controlling a speed of a vehicle based on whether a rain tray is coupled within the vehicle, below a vented hood of the vehicle. In one example, a method may include maintaining a vehicle speed of a vehicle below a set vehicle speed threshold and alerting a vehicle operator of the set vehicle speed threshold when it is detected that a rain tray is installed in the vehicle, below a vent of a vented hood of the vehicle. In another example, the set vehicle speed threshold may be reduced due to the presence of rain. |
86 |
METHOD OF CONTROLLING CAMSHAFT PHASE BASED ON HUMIDITY |
US15429219 |
2017-02-10 |
US20180230864A1 |
2018-08-16 |
Christopher E. Whitney; David N. Hayden; Nicola Pisu; Stephen P. Levijoki |
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. |
87 |
LNT control with adaptive cruise control |
US15215347 |
2016-07-20 |
US10040454B2 |
2018-08-07 |
Frederik De Smet; Jan Harmsen |
A method is provided for controlling a NOx storage catalytic converter that is disposed in the exhaust system of an internal combustion engine of a motor vehicle with an adaptive cruise control system, wherein regeneration of the NOx storage catalytic converter is started depending on the distance to a vehicle ahead. For this the motor vehicle is accelerated in a rich mode for regeneration if the distance to the vehicle ahead is large enough so that the regeneration will be completed during an acceleration phase in which the distance is reduced. |
88 |
ENHANCED VEHICLE MONITORING |
US15794098 |
2017-10-26 |
US20180197028A1 |
2018-07-12 |
Asmahan A. Ali; Ali Y. Duale; Mustafa Y. Mah |
A method for an enhanced vehicle monitoring system that utilizes cameras and other sensors to determine the state of the interior and/or exterior of a vehicle is provided. The method comprises detecting that a driver has exited a vehicle. The method further comprises monitoring a state of the vehicle. The method further comprises determining based, at least in part, on the monitoring, if an object has been left in the vehicle unintentionally or if the vehicle has been left running unattended. The method further comprises, upon determining that the object has been left in the vehicle or the vehicle has been left running unattended, sending a notification to the driver. |
89 |
BLOW-BY GAS SUPPLY DEVICE FOR ENGINE |
US15631404 |
2017-06-23 |
US20180073451A1 |
2018-03-15 |
Tomoya OZAWA |
A blow-by gas supply device includes an upstream-side passage, a downstream-side passage, a gas passage, a bypass passage, a valve mechanism, and a valve control unit. The device is provided in an engine including a compressor, and recirculates blow-by gas upstream of the compressor. The upstream-side passage is coupled to an input port of the compressor. The downstream-side passage is coupled to an output port of the compressor. The gas passage is coupled to the upstream-side passage and guides the blow-by gas from inside of the engine to the upstream-side passage. The bypass passage is coupled to the upstream-side passage and the downstream-side passage and guides the intake air from the downstream side passage to the upstream side passage. The valve mechanism is provided in the bypass passage and switched between communication and cutoff states. The valve control unit controls the valve mechanism in the communication or cutoff state. |
90 |
METHOD AND APPARATUS FOR ACQUIRING ALTITUDE CORRECTION COEFFICIENT |
US15105953 |
2014-11-24 |
US20170298855A1 |
2017-10-19 |
Keguang Qi |
Disclosed is a method for acquiring an altitude correction coefficient, comprising: acquiring an initial value of an altitude correction coefficient self-learning filter when a preset event occurs to a vehicle engine, the preset event includes a power-off event, a power-on event, and an unexpected power-down event; evaluating whether the vehicle satisfies a preset self-learning enabling condition, in accordance with an engine rotation speed, a vehicle speed, and status information of designated devices; enabling the altitude correction coefficient self-learning filter when the vehicle satisfies the preset self-learning enabling condition; determining an input of the altitude correction coefficient self-learning filter at least in accordance with operating states of a manifold pressure sensor and a stepping motor; and obtaining a current altitude correction coefficient by self-learning the altitude correction coefficient applying the altitude correction coefficient self-learning filter in accordance with the initial value of the altitude correction coefficient self-learning filter and the input of the altitude correction coefficient self-learning filter. An apparatus for acquiring an altitude correction coefficient is also disclosed. The above method and apparatus improve the accuracy of the altitude correction coefficient and enhance the idling satiability. |
91 |
DUAL FUEL ENGINE WITH LIQUID FUEL CUT-OFF |
US15332264 |
2016-10-24 |
US20170037796A1 |
2017-02-09 |
Kendall J. Collie; Mark J. Sarder; Aleko D. Sotiriades; James J. Dehn; Leigh Jenison; Hiroaki Sato |
A dual fuel engine includes an engine operable on a gaseous fuel and a liquid fuel and has an electrical power generator. The dual fuel engine also includes a carburetor attached to an intake of the engine to mix air and fuel and connect to a gaseous fuel source and a liquid fuel source. A liquid fuel cut-off connects to the carburetor to selectively interrupt a flow of liquid fuel to the engine. The liquid fuel cut-off is operable in open and closed states such that the liquid fuel cut-off interrupts the flow of liquid fuel when closed. The dual fuel engine also includes controller operably connected to operate the liquid fuel cut-off in the open and closed states, and the controller may be programmed to implement a delay period upon engine startup before closing the liquid fuel cut-off. |
92 |
LNT CONTROL WITH ADAPTIVE CRUISE CONTROL |
US15215347 |
2016-07-20 |
US20170021831A1 |
2017-01-26 |
Frederik De Smet; Jan Harmsen |
A method is provided for controlling a NOx storage catalytic converter that is disposed in the exhaust system of an internal combustion engine of a motor vehicle with an adaptive cruise control system, wherein regeneration of the NOx storage catalytic converter is started depending on the distance to a vehicle ahead. For this the motor vehicle is accelerated in a rich mode for regeneration if the distance to the vehicle ahead is large enough so that the regeneration will be completed during an acceleration phase in which the distance is reduced. |
93 |
METHODS AND SYSTEM FOR REDUCING PARTICULATE MATTER PRODUCED BY AN ENGINE |
US15132009 |
2016-04-18 |
US20160363090A1 |
2016-12-15 |
Stephen George Russ; Ethan D. Sanborn; Joseph Lyle Thomas; Gopichandra Surnilla |
Methods and systems for simultaneously operating port fuel injectors and direct fuel injectors of an internal combustion engine are described. In one example, port fuel injection timing is adjusted to reduce particulate matter formation in the engine so that particulate filter loading may be reduced until a time when the particulate filter may be purged. |
94 |
METHODS AND SYSTEMS FOR VEHICLE AMBIENT HYDROCARBON LEVEL MONITORING |
US14693535 |
2015-04-22 |
US20160312718A1 |
2016-10-27 |
Aed M. Dudar |
Methods and systems are provided for adjusting a vehicle operation based on an output of a hydrocarbon sensor located in a canister vent line coupling a fuel vapor canister and the atmosphere in order to reduce exhaust and evaporative emissions, and improve fuel economy while providing improved cabin comfort. Specifically, in response to determining an ambient hydrocarbon amount greater than a threshold based on the hydrocarbon sensor output during purging, the purging operation may be terminated, and the canister may be sealed from the atmosphere. Further, in response to the determination, a vehicle climate control system may be adjusted to stop providing fresh air to the vehicle cabin and provide only cabin air recirculation, and an engine operation may be adjusted such that a ratio of a port fuel injection amount to a direct fuel injection amount is increased. |
95 |
Variable valve timing control device for internal combustion engine, and control method |
US14432284 |
2014-03-07 |
US09410488B2 |
2016-08-09 |
Kentaro Mikawa |
The present invention relates to variable valve timing control device and control method, which change valve timing of an internal combustion engine. An operation amount for controlling the valve timing is computed, and an operation amount computed at position detection timing of a valve timing control system is divided and output until next position detection timing. |
96 |
Vehicle Control Apparatus and Vehicle Control Method |
US14894181 |
2014-03-14 |
US20160123261A1 |
2016-05-05 |
Takeo SHIBATA; Hiroshi KURODA |
A vehicle control apparatus that makes it possible to attempt fuel consumption improvement and exhaust gas reduction effectively without causing a sense of incompatibility in the driver is provided. When traveling following the preceding vehicle, kinetic energy required for an own vehicle in future is predicted on the basis of kinetic energy of the own vehicle, a velocity of a preceding vehicle, and a distance between the own vehicle and the preceding vehicle. It is determined whether there is kinetic energy enough for the own vehicle to be able to follow the preceding vehicle with inertial traveling, on the basis of the predicted kinetic energy and current kinetic energy. When it is determined that the kinetic energy is sufficient and the driving and traveling state of the own vehicle satisfies other traveling idling reduction conditions, control of stopping the engine is exercised. |
97 |
Vehicle driving device |
US14285235 |
2014-05-22 |
US09328783B2 |
2016-05-03 |
Daisuke Tamaru |
A vehicle driving device includes: a clutch that is provided between a driving shaft of an engine and an input shaft of a manual transmission and that connects the driving shaft and the input shaft to each other or disconnects the driving shaft and the input shaft from each other; a clutch torque changing unit that changes clutch torque between the driving shaft and the input shaft; a collision possibility determination unit that determines a possibility of collision between an obstacle and a host vehicle; and a collision avoidance unit that gives an instruction to the clutch torque changing unit so as to avoid collision with the obstacle when the collision possibility determination unit determines that there is a possibility of collision with the obstacle. |
98 |
Method and apparatus for matching vehicle ECU programming to current vehicle operating conditions |
US13857985 |
2013-04-05 |
US09229906B2 |
2016-01-05 |
Charles Michael McQuade; Bryan Hunt; Dan Mayer |
Disclosed herein are techniques for implementing vehicle ECU reprogramming, so the ECU programming, which plays a large role in vehicle performance characteristics, is tailored to current operational requirements, which may be different than the operational characteristics selected by the manufacturer when initially programming the vehicle ECU (or ECUs) with specific instruction sets, such as fuel maps. In one embodiment, a controller monitors the current operational characteristics of the vehicle, determines the current ECU programming, and determines if a different programming set would better suited to the current operating conditions. In the event that the current programming set should be replaced, the controller implements the ECU reprogramming. In a related embodiment, users are enabled to specify the ECU programming to change, such as changing speed limiter settings. |
99 |
SYSTEM AND METHOD FOR EVALUATING OPERATING CAPABILITY OF A PRIME MOVER |
US14655167 |
2013-12-27 |
US20150330321A1 |
2015-11-19 |
Erich Albert LUCHT; Titilope Zaburat SULE |
A method of evaluating operating capability of a prime mover includes: starting the prime mover with a minimum load requirement threshold; obtaining a reference prime mover operation parameter for the prime mover; comparing the reference prime mover operation parameter with a standard prime mover operation parameter to determine a reference matrix; and adjusting via a TRS controller a standard operation threshold based on the reference matrix to obtain an optimal operation threshold. |
100 |
Engine response adjustment |
US14595824 |
2015-01-13 |
US09062614B2 |
2015-06-23 |
Steven Joseph Szwabowski; Craig Thomas Hodorek |
Methods and systems are provided for adjusting an engine output delivered in response to an operator pedal actuation based at least on a grade of vehicle travel. During uphill travel, in the presence of headwinds, and/or in the presence of a vehicle payload, the output may be increased while during downhill travel or in the presence of tailwinds, the output may be decreased. In this way, driver fatigue during travel over varying elevations, varying ambient conditions, and varying loads can be reduced. |