Patents by Inventor Rommel Racelis
Rommel Racelis 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).
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Patent number: 11378028Abstract: Systems and methods for determining degradation of a cylinder deactivation mechanism are described. In one example, engine data generated while an engine is operation with all of its cylinders active is used to correct engine data generated while one or more engine cylinders are deactivated to improve detection of a degraded cylinder deactivation mechanism.Type: GrantFiled: October 8, 2020Date of Patent: July 5, 2022Assignee: Ford Global Technologies, LLCInventors: Adam Krach, Michael Casedy, Rommel Racelis, Patrick Smithberger
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Publication number: 20220112851Abstract: Systems and methods for determining degradation of a cylinder deactivation mechanism are described. In one example, engine data generated while an engine is operation with all of its cylinders active is used to correct engine data generated while one or more engine cylinders are deactivated to improve detection of a degraded cylinder deactivation mechanism.Type: ApplicationFiled: October 8, 2020Publication date: April 14, 2022Inventors: Adam Krach, Michael Casedy, Rommel Racelis, Patrick Smithberger
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Patent number: 9810171Abstract: Methods and systems are provided for determining an offset of a manifold pressure sensor. In one example, an engine method may include indicating degradation of the manifold pressure sensor based on a sensor offset, the sensor offset based on a manifold pressure measured at a first throttle angle, a barometric pressure at a second throttle angle, a reference manifold pressure at the first throttle angle and reference barometric pressure, and the reference barometric pressure. Further, the method may include adjusting an output of the manifold pressure sensor by the determined sensor offset.Type: GrantFiled: December 3, 2013Date of Patent: November 7, 2017Assignee: Ford Global Technologies, LLCInventors: Rommel Racelis, John Eric Rollinger, Robert Roy Jentz
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Patent number: 9732690Abstract: Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, engine operation may be adjusted responsive to water storage parameters at the CAC, the water storage parameters based on an output of a first oxygen sensor positioned downstream of the CAC and a second oxygen sensor positioned upstream of the CAC. Further, operation of the first oxygen sensor and the second oxygen sensor may be diagnosed during certain engine operation conditions wherein no condensate is forming in the CAC.Type: GrantFiled: March 20, 2017Date of Patent: August 15, 2017Assignee: Ford Global Technologies, LLCInventors: John Eric Rollinger, Robert Roy Jentz, Rommel Racelis
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Publication number: 20170191435Abstract: Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, engine operation may be adjusted responsive to water storage parameters at the CAC, the water storage parameters based on an output of a first oxygen sensor positioned downstream of the CAC and a second oxygen sensor positioned upstream of the CAC. Further, operation of the first oxygen sensor and the second oxygen sensor may be diagnosed during certain engine operation conditions wherein no condensate is forming in the CAC.Type: ApplicationFiled: March 20, 2017Publication date: July 6, 2017Inventors: John Eric Rollinger, Robert Roy Jentz, Rommel Racelis
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Patent number: 9664079Abstract: Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. Integrated CVT pressure readings are used to diagnose disconnection of the CVT on the air intake side and distinguish from disconnection on the crankcase side. Use of integrated pressure readings allows for a more reliable and quicker diagnosis even at lower engine airflows.Type: GrantFiled: August 27, 2015Date of Patent: May 30, 2017Assignee: Ford Global Technologies, LLCInventors: Robert Roy Jentz, John Eric Rollinger, Rommel Racelis, Michael Stephen Sweppy
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Patent number: 9650946Abstract: Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, engine operation may be adjusted responsive to water storage parameters at the CAC, the water storage parameters based on an output of a first oxygen sensor positioned downstream of the CAC and a second oxygen sensor positioned upstream of the CAC. Further, operation of the first oxygen sensor and the second oxygen sensor may be diagnosed during certain engine operation conditions wherein no condensate is forming in the CAC.Type: GrantFiled: August 15, 2013Date of Patent: May 16, 2017Assignee: Ford Global Technologies, LLCInventors: John Eric Rollinger, Robert Roy Jentz, Rommel Racelis
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Patent number: 9435283Abstract: Methods and systems are provided for estimating barometric pressure based on a reference barometric pressure and manifold pressures at two different altitudes. In one example, a method may include adjusting an operating condition of the engine based on barometric pressure during engine operation at throttle angles less than a threshold, the barometric pressure based on a current manifold pressure relative to a reference manifold pressure at a current throttle angle and reference barometric pressure. Further, the method may include adjusting a manifold pressure sensor output based on an offset of the manifold pressure sensor.Type: GrantFiled: December 3, 2013Date of Patent: September 6, 2016Assignee: Ford Global Technologies, LLCInventors: Rommel Racelis, John Eric Rollinger, Robert Roy Jentz
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Patent number: 9388733Abstract: Embodiments for controlling boost pressure in a turbocharged engine are provided. In one embodiment, a method for an engine having a throttle comprises, if an inferred throttle inlet pressure (TIP) value is different than a measured TIP value, adjusting a wastegate of a turbocharger based on the inferred TIP value and not based on the measured TIP value, the inferred TIP value based on air flow through the throttle, throttle angle, and manifold absolute pressure (MAP). In this way, boost pressure control may be provided by the inferred TIP value under some conditions.Type: GrantFiled: January 2, 2014Date of Patent: July 12, 2016Assignee: Ford Global Technologies, LLCInventors: Rommel Racelis, John Eric Rollinger, David Bell
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Publication number: 20160097355Abstract: Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. Integrated CVT pressure readings are used to diagnose disconnection of the CVT on the air intake side and distinguish from disconnection on the crankcase side. Use of integrated pressure readings allows for a more reliable and quicker diagnosis even at lower engine airflows.Type: ApplicationFiled: August 27, 2015Publication date: April 7, 2016Inventors: Robert Roy Jentz, John Eric Rollinger, Rommel Racelis, Michael Stephen Sweppy
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Patent number: 9222426Abstract: Embodiments for controlling cylinder air flow are provided. In one example, a method for controlling airflow into a cylinder of an engine comprises, if a previous cylinder airflow is different than a desired cylinder airflow, allocating flow into an intake manifold between a throttle and an EGR valve to provide the desired cylinder airflow while maintaining a desired EGR amount in the cylinder. In this way, transient air flow requests may be met without delay while maintaining desired cylinder EGR amounts.Type: GrantFiled: February 17, 2012Date of Patent: December 29, 2015Assignee: Ford Global Technologies, LLCInventors: John Eric Rollinger, Freeman Carter Gates, Brien Lloyd Fulton, Rommel Racelis
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Publication number: 20150184583Abstract: Embodiments for controlling boost pressure in a turbocharged engine are provided. In one embodiment, a method for an engine having a throttle comprises, if an inferred throttle inlet pressure (TIP) value is different than a measured TIP value, adjusting a wastegate of a turbocharger based on the inferred TIP value and not based on the measured TIP value, the inferred TIP value based on air flow through the throttle, throttle angle, and manifold absolute pressure (MAP). In this way, boost pressure control may be provided by the inferred TIP value under some conditions.Type: ApplicationFiled: January 2, 2014Publication date: July 2, 2015Applicant: Ford Global Technologies, LLCInventors: Rommel Racelis, John Eric Rollinger, David Bell
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Publication number: 20150152801Abstract: Methods and systems are provided for estimating barometric pressure based on a reference barometric pressure and manifold pressures at two different altitudes. In one example, a method may include adjusting an operating condition of the engine based on barometric pressure during engine operation at throttle angles less than a threshold, the barometric pressure based on a current manifold pressure relative to a reference manifold pressure at a current throttle angle and reference barometric pressure. Further, the method may include adjusting a manifold pressure sensor output based on an offset of the manifold pressure sensor.Type: ApplicationFiled: December 3, 2013Publication date: June 4, 2015Applicant: Ford Global Technologies, LLCInventors: Rommel Racelis, John Eric Rollinger, Robert Roy Jentz
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Publication number: 20150152802Abstract: Methods and systems are provided for determining an offset of a manifold pressure sensor. In one example, an engine method may include indicating degradation of the manifold pressure sensor based on a sensor offset, the sensor offset based on a manifold pressure measured at a first throttle angle, a barometric pressure at a second throttle angle, a reference manifold pressure at the first throttle angle and reference barometric pressure, and the reference barometric pressure. Further, the method may include adjusting an output of the manifold pressure sensor by the determined sensor offset.Type: ApplicationFiled: December 3, 2013Publication date: June 4, 2015Applicant: Ford Global Technologies, LLCInventors: Rommel Racelis, John Eric Rollinger, Robert Roy Jentz
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Publication number: 20150047339Abstract: Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, engine operation may be adjusted responsive to water storage parameters at the CAC, the water storage parameters based on an output of a first oxygen sensor positioned downstream of the CAC and a second oxygen sensor positioned upstream of the CAC. Further, operation of the first oxygen sensor and the second oxygen sensor may be diagnosed during certain engine operation conditions wherein no condensate is forming in the CAC.Type: ApplicationFiled: August 15, 2013Publication date: February 19, 2015Applicant: Ford Global Technologies, LLCInventors: John Eric Rollinger, Robert Roy Jentz, Rommel Racelis
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Publication number: 20130213353Abstract: Embodiments for controlling cylinder air flow are provided. In one example, a method for controlling airflow into a cylinder of an engine comprises, if a previous cylinder airflow is different than a desired cylinder airflow, allocating flow into an intake manifold between a throttle and an EGR valve to provide the desired cylinder airflow while maintaining a desired EGR amount in the cylinder. In this way, transient air flow requests may be met without delay while maintaining desired cylinder EGR amounts.Type: ApplicationFiled: February 17, 2012Publication date: August 22, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: John Eric Rollinger, Freeman Carter Gates, Brien Lloyd Fulton, Rommel Racelis