Patents by Inventor Mihai DOROBANTU
Mihai DOROBANTU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11814033Abstract: A vehicle hybrid powertrain includes an internal combustion engine; an electrical drivetrain; a light-off selective catalytic reduction (LO-SCR) device coupled to receive exhaust from the internal combustion engine; and a control system that directs cylinder deactivation (CDA) of the internal combustion engine and controls heat applied to the LO-SCR device.Type: GrantFiled: December 8, 2022Date of Patent: November 14, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: James E. McCarthy, Jr., Mihai Dorobantu
-
Publication number: 20230174050Abstract: A method of heating an aftertreatment system includes fulfilling a vehicle drive load of a vehicle via an electrical drivetrain of a vehicle hybrid powertrain, wherein the vehicle hybrid powertrain comprises the electrical drivetrain and an internal combustion engine; while the electrical drivetrain is fulfilling the vehicle drive load, operating the internal combustion engine to generate airflow for transport of heat through the aftertreatment system; and directing a heat source to raise a temperature through a selective catalytic reduction (SCR) device of the aftertreatment system.Type: ApplicationFiled: December 8, 2022Publication date: June 8, 2023Inventors: James E. McCarthy, JR., Mihai DOROBANTU
-
Publication number: 20230174049Abstract: A vehicle hybrid powertrain includes an internal combustion engine; an electrical drivetrain; a light-off selective catalytic reduction (LO-SCR) device coupled to receive exhaust from the internal combustion engine; and a control system that directs cylinder deactivation (CDA) of the internal combustion engine and controls heat applied to the LO-SCR device.Type: ApplicationFiled: December 8, 2022Publication date: June 8, 2023Inventors: James E. McCarthy, JR., Mihai DOROBANTU
-
Publication number: 20230132811Abstract: A switchable powertrain includes a main gear set configured for gear ratio selection. The main gear set includes an input shaft, first gears coupled to a main shaft, and second gears coupled to a second shaft. The second gears are meshed with the first gears. The switchable powertrain further includes a first torque source, a second torque source, a clutch configured for selectively coupling the first torque source to the input shaft of the main gear set, and an adapter. The adapter includes a first selective coupling for forming a first adapter torque transfer pathway from the second torque source directly to the main shaft, and a second selective coupling for forming a second adapter torque transfer pathway from the second torque source, through the main gear set, and to the main shaft.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Inventors: Thomas Alan Genise, Payam Naghshtabrizi, Mihai Dorobantu, Chinmaya Patil, Mahesh P. Joshi, Damrongrit Piyabongkarn, Erik Dykes
-
Patent number: 11578673Abstract: A method for controlling vehicle speed comprises selecting an engine speed profile for a vehicle. Road grade data is received and processed to determine a road grade for the vehicle. Vehicle speed data is received and processed to determine a vehicle speed for the vehicle. A cylinder deactivation mode for a valvetrain of a multi-cylinder engine of the vehicle is selected. The cylinder deactivation mode comprises deactivating one or more intake valve, exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. The selected cylinder deactivation mode provides a controlled deviation from the selected engine speed profile at the road grade and vehicle speed.Type: GrantFiled: November 29, 2021Date of Patent: February 14, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: James E. McCarthy, Jr., Mihai Dorobantu, Douglas J. Nielsen, Brian Franke
-
Patent number: 11560140Abstract: A switchable powertrain comprises at least four points of freedom. The switchable powertrain comprises a main gear set configured for gear ratio selection, the main gear set comprising main gears coupled to a main shaft and second gears coupled to a second shaft. An adapter comprises a first selective coupling configured to selectively couple to the main shaft, and a second selective coupling configured to selectively couple to the second shaft. A first torque source and a clutch are configured for selectively coupling or decoupling first torque to the main shaft. A second torque source is configured for selectively outputting second torque to the first selective coupling or to the second selective coupling.Type: GrantFiled: September 7, 2020Date of Patent: January 24, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Thomas Alan Genise, Payam Naghshtabrizi, Mihai Dorobantu, Chinmaya Patil, Mahesh P. Joshi, Damrongrit Piyabongkarn, Erik Dykes
-
Publication number: 20220154653Abstract: A method for controlling a transmission of a vehicle during cylinder deactivation can comprise receiving and processing a zero or negative torque requirement for the vehicle. Receiving and processing vehicle speed data can be included to determine a vehicle speed for the vehicle. A cylinder deactivation mode can be implemented for a valvetrain of a multi-cylinder engine of the vehicle, wherein the cylinder deactivation mode comprises deactivating one or more intake valve, one or more exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. Selecting one of an in-gear mode and a neutral mode for a transmission of the vehicle can be included while implementing the cylinder deactivation mode and while maintaining the determined vehicle speed.Type: ApplicationFiled: November 29, 2021Publication date: May 19, 2022Applicant: Eaton Intelligent Power LimitedInventors: James E. McCarthy, JR., Mihai Dorobantu, Douglas J. Nielsen, Brian Franke
-
Patent number: 11300061Abstract: A method for engine braking on a type III valvetrain diesel engine comprises, on a first downstroke of a reciprocating piston, deactivating a normal intake lift profile on a first intake valve to implement a deactivated intake profile. Before a first upstroke of the reciprocating piston completes, a late intake valve closing lift profile is actuating on a second intake valve and beginning an engine brake lift profile on a first exhaust valve. On a second downstroke of the reciprocating piston, the engine brake lift profile on the first exhaust valve is completing and a normal exhaust lift profile is deactivating on a second exhaust valve to implement a deactivated exhaust profile on the second exhaust valve. Before a second upstroke of the reciprocating piston completes, a second engine brake lift profile is beginning on the first exhaust valve.Type: GrantFiled: June 11, 2019Date of Patent: April 12, 2022Assignee: Eaton Intelligent Power LimitedInventors: James E. McCarthy, Jr., Dale Arden Stretch, Mihai Dorobantu
-
Patent number: 11300015Abstract: A valvetrain for a type II engine comprises a valve bridge, a switching rocker arm, a center capsule, a first auxiliary rocker arm, and a first auxiliary capsule. The selectively switching rocker arm is configured to switch configurations to transfer a first valve actuation profile from a first overhead cam lobe to the valve bridge center point and to transfer a second valve actuation profile from a second overhead cam lobe to the center point. The center capsule is configured to switch between an active state and a lost motion state. The first auxiliary rocker arm is configured to transfer a first auxiliary valve actuation profile from a third overhead cam lobe to the valve bridge first valve mounting area. The valvetrain can further comprise a second auxiliary rocker arm and a second auxiliary capsule.Type: GrantFiled: July 12, 2019Date of Patent: April 12, 2022Assignee: Eaton Intelligent Power LimitedInventors: James E. McCarthy, Jr., Mihai Dorobantu
-
Publication number: 20220010713Abstract: A transmission system selectively coupled to an engine crankshaft of an internal combustion engine arranged on a vehicle includes a transmission, an aftertreatment system, an accessory device and a controller. The aftertreatment system reduces emissions in an exhaust of the internal combustion engine. The accessory device is configured to provide power. The controller operates in an aftertreatment heat-up mode such that the aftertreatment system is heated up to an elevated temperature and emissions are thereby reduced based on the elevated temperature. The controller is configured to heat up the aftertreatment system to reach between one (1) and two (2) kilowatt hours (kWh) of enthalpy before two minutes at engine startup by (i) operating the internal combustion engine in cylinder deactivation mode (CDA); (ii) operating the internal combustion engine at an elevated idle speed; and (iii) operating the accessory device at a threshold power.Type: ApplicationFiled: September 27, 2021Publication date: January 13, 2022Applicant: Eaton Intelligent Power LimitedInventors: James E. McCarthy, JR., Mihai Dorobantu, Gary Neely, Andrew Matheaus, Viken Yeranosian
-
Patent number: 11187162Abstract: A method for controlling vehicle speed comprises selecting an engine speed profile for a vehicle. Road grade data is received and processed to determine a road grade for the vehicle. Vehicle speed data is received and processed to determine a vehicle speed for the vehicle. A cylinder deactivation mode for a valvetrain of a multi-cylinder engine of the vehicle is selected. The cylinder deactivation mode comprises deactivating one or more intake valve, exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. The selected cylinder deactivation mode provides a controlled deviation from the selected engine speed profile at the road grade and vehicle speed.Type: GrantFiled: May 28, 2019Date of Patent: November 30, 2021Assignee: Eaton Intelligent Power LimitedInventors: James E. McCarthy, Jr., Mihai Dorobantu, Douglas J. Nielsen, Brian Franke
-
Publication number: 20210324770Abstract: A valvetrain for a type II engine comprises a valve bridge, a switching rocker arm, a center capsule, a first auxiliary rocker arm, and a first auxiliary capsule. The selectively switching rocker arm is configured to switch configurations to transfer a first valve actuation profile from a first overhead cam lobe to the valve bridge center point and to transfer a second valve actuation profile from a second overhead cam lobe to the center point. The center capsule is configured to switch between an active state and a lost motion state. The first auxiliary rocker arm is configured to transfer a first auxiliary valve actuation profile from a third overhead cam lobe to the valve bridge first valve mounting area. The valvetrain can further comprise a second auxiliary rocker arm and a second auxiliary capsule.Type: ApplicationFiled: July 12, 2019Publication date: October 21, 2021Inventors: James E. McCarthy, Jr., Mihai Dorobantu
-
Publication number: 20210254562Abstract: A method for engine braking on a type III valvetrain diesel engine comprises, on a first downstroke of a reciprocating piston, deactivating a normal intake lift profile on a first intake valve to implement a deactivated intake profile. Before a first upstroke of the reciprocating piston completes, a late intake valve closing lift profile is actuating on a second intake valve and beginning an engine brake lift profile on a first exhaust valve. On a second downstroke of the reciprocating piston, the engine brake lift profile on the first exhaust valve is completing and a normal exhaust lift profile is deactivating on a second exhaust valve to implement a deactivated exhaust profile on the second exhaust valve. Before a second upstroke of the reciprocating piston completes, a second engine brake lift profile is beginning on the first exhaust valve.Type: ApplicationFiled: June 11, 2019Publication date: August 19, 2021Applicant: Eaton Intelligent Power LimitedInventors: James E. McCarthy, Jr., Dale Arden Stretch, Mihai Dorobantu
-
Patent number: 11084373Abstract: A system includes a PTO device that selectively couples to a driveline of a vehicle at each of two driveline coupling positions, and a motor/generator electrically coupled to an electrical power storage system. The system further includes a shared load selectively powered by the driveline or the motor/generator. The PTO device further includes a coupling actuator that couples the shared load to the motor/generator in a first position, and couples the shared load to the driveline in a second position.Type: GrantFiled: November 7, 2018Date of Patent: August 10, 2021Assignee: Eaton Intelligent Power LimitedInventors: Glenn Clark Fortune, Mihai Dorobantu
-
Publication number: 20210070280Abstract: A switchable powertrain comprises at least four points of freedom. The switchable powertrain comprises a main gear set configured for gear ratio selection, the main gear set comprising main gears coupled to a main shaft and second gears coupled to a second shaft. An adapter comprises a first selective coupling configured to selectively couple to the main shaft, and a second selective coupling configured to selectively couple to the second shaft. A first torque source and a clutch are configured for selectively coupling or decoupling first torque to the main shaft. A second torque source is configured for selectively outputting second torque to the first selective coupling or to the second selective coupling.Type: ApplicationFiled: September 7, 2020Publication date: March 11, 2021Applicant: Eaton Intelligent Power LimitedInventors: Thomas Alan Genise, Payam Naghshtabrizi, Mihai Dorobantu, Chinmaya Patil, Mahesh P. Joshi, Damrongrit Piyabongkarn, Erik Dykes
-
Publication number: 20190277206Abstract: A method for controlling vehicle speed comprises selecting an engine speed profile for a vehicle. Road grade data is received and processed to determine a road grade for the vehicle. Vehicle speed data is received and processed to determine a vehicle speed for the vehicle. A cylinder deactivation mode for a valvetrain of a multi-cylinder engine of the vehicle is selected. The cylinder deactivation mode comprises deactivating one or more intake valve, exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. The selected cylinder deactivation mode provides a controlled deviation from the selected engine speed profile at the road grade and vehicle speed.Type: ApplicationFiled: May 28, 2019Publication date: September 12, 2019Inventors: James E. McCarthy, JR., Mihai Dorobantu, Douglas J. Nielsen, Brian Franke
-
Publication number: 20190135107Abstract: A system includes a PTO device that selectively couples to a driveline of a vehicle at each of two driveline coupling positions, and a motor/generator electrically coupled to an electrical power storage system. The system further includes a shared load selectively powered by the driveline or the motor/generator. The PTO device further includes a coupling actuator that couples the shared load to the motor/generator in a first position, and couples the shared load to the driveline in a second position.Type: ApplicationFiled: November 7, 2018Publication date: May 9, 2019Inventors: Glenn Clark Fortune, Mihai Dorobantu
-
Publication number: 20170074121Abstract: The present teachings include a power generation system for recovering waste heat energy from a power plant having a coolant circuit that extends through the power plant. The coolant circuit may also include a radiator and a coolant pump configured to circulate the coolant between the internal combustion engine and the radiator. The power generation system may also include a waste heat recovery circuit including a Roots-type fluid expander configured to generate power at an output shaft by expanding a portion of the coolant and being configured to deliver the power back to the internal combustion engine crankshaft via the output shaft. The waste heat recovery circuit may further include a circulation pump configured to circulate coolant between the Roots-type expander and the coolant circuit. A condenser may also be provided to condense the coolant leaving the Roots-type fluid expander at least down to a saturated liquid.Type: ApplicationFiled: March 3, 2015Publication date: March 16, 2017Applicant: EATON CORPORATIONInventors: Swaminathan SUBRAMANIAN, Karen BEVAN, Mihai DOROBANTU
-
Patent number: 8813593Abstract: This invention provides a common means of coupling an alternative power source to a vehicle's drive wheels which is particularly well suited for use with a countershaft-type transmission. This invention also addresses clutch wear by eliminating the need to engage the frictional clutch to launch the vehicle. This invention also improves the acceleration of the vehicle compared to a typical dry friction clutch launch by relying on the HLA system to transfer more power to the drive wheels more quickly than would be transferred by a typical launch engagement of a dry friction clutch in a commercial vehicle.Type: GrantFiled: November 10, 2010Date of Patent: August 26, 2014Assignee: Eaton CorporationInventors: Thomas A. Genise, Mihai Dorobantu
-
Patent number: 8783644Abstract: A controlled pressure release valve includes a valve body having a gas inlet for connection to a gas container and a gas outlet for delivering gas to a protected area. The controlled valve comprises a slidable spool housed in the valve body that is slidable between a first position and a second position. The slidable spool has a first end and a second end. A primary flow passage connects the gas inlet and the gas outlet and increases with lineal movement of the slidable spool. The sliding spool is biased towards the first position by a gas pressure applied by the second chamber and a spring.Type: GrantFiled: April 7, 2005Date of Patent: July 22, 2014Assignee: Chubb International Holdings LimitedInventors: Fanping Sun, Zaffir Chaudhry, Muhidin A. Lelic, Mihai Dorobantu, Stevo Mijanovic, Lisa A. Prill, Umesh G. Vaidya