Class / Patent application number | Description | Number of patent applications / Date published |
073114680 | Cooling system | 20 |
20090293600 | DIAGNOSTIC SYSTEMS FOR COOLING SYSTEMS FOR INTERNAL COMBUSTION ENGINES - A control system for an engine system includes a temperature sensor and a diagnostic module. The temperature sensor measures an outlet temperature at an outlet of a cooling system. The diagnostic module estimates the cooling fluid temperature, determines the cooling performance based on the outlet temperature and the cooling fluid temperature, and selectively diagnoses a fault in the cooling system based on the cooling performance and a predetermined threshold. | 12-03-2009 |
20100058848 | ENGINE COOLANT TEMPERATURE ESTIMATION SYSTEM - An engine coolant temperature estimation system comprises a coolant temperature estimation module and a coolant monitoring module. The coolant estimation module estimates an engine coolant temperature based on at least one of a mass air flow, a vehicle speed, and an ambient temperature. The coolant monitoring module selectively operates an engine based on the estimated engine coolant temperature. | 03-11-2010 |
20100116040 | Test bench conditioning system for a working fluid, and a device for operating a test bench condition system of this type - A test bench conditioning system for a working fluid of a machine located on the test bench includes at least one pump ( | 05-13-2010 |
20110120216 | MALFUNCTION DETERMINATION APPARATUS FOR COOLING APPARATUS AND MALFUNCTION DETERMINATION METHOD FOR COOLING APPARATUS - In a malfunction determination apparatus and a malfunction determination method for a cooling apparatus that cools an internal combustion engine by circulating a cooling medium that flows in a first passage that extends through an inside of the engine, using an electric pump, a first temperature of the cooling medium is detected at an inlet of the first passage, through which the cooling medium flows into the inside of the engine; a second temperature of the cooling medium is detected at an outlet of the first passage, through which the cooling medium flows out from the inside of the engine; and it is determined that the switching valve is able to normally select the second passage, if both of the first temperature and the second temperature reach a first threshold value when a temperature of the cooling medium increases due to start of the engine. | 05-26-2011 |
20110226048 | DIAGNOSIS CONCEPT FOR VALVE CONTROLLED COOLANT BYPASS PATHS - A system and method for determining whether a shut-off valve in a cabin heating by-pass line of a thermal sub-system associated with an engine has failed that uses the pump current for a pump that pumps the cooling fluid through the by-pass line. The method includes setting a predetermined constant speed of the pump and then providing a valve command that opens the by-pass valve. The method then determines if the pump current has increased or remained substantially the same when the by-pass valve is commanded open, and determines that the by-pass valve has not opened if the pump current remains substantially constant when the by-pass valve is commanded open. | 09-22-2011 |
20120085157 | MALFUNCTION DETERMINATION APPARATUS AND MALFUNCTION DETERMINATION METHOD - A malfunction determination apparatus for a cooling apparatus that cools an internal combustion engine by circulating a coolant through an interior of the internal combustion engine, using an electric pump, after the internal combustion engine is started includes: a detection portion that detects the coolant temperature; and a determination portion that determines a malfunction has occurred in a thermostat, if a state in which the detected coolant temperature remains below a first threshold temperature after the electric pump begins operating, following start of the internal combustion engine, continues for at least a pre-determined time. The thermostat is a thermostat for switching from a first passage for circulating the coolant without passage via an interior of a radiator of the cooling apparatus to a second passage for circulating the coolant via the interior of the radiator, as the coolant temperature rises. | 04-12-2012 |
20120247196 | DIAGNOSIS DEVICE AND DIAGNOSIS METHOD FOR FAN COUPLING DEVICE - A fan coupling device | 10-04-2012 |
20130014574 | METHOD OF PASSAGE OPENNESS INSPECTION OF A PRODUCT, IN PARTICULAR OF COOLANT PASSAGES OF CYLINDER HEADS AND A DEVICE FOR PERFORMING THE METHODAANM Balog; MartinAACI BratislavaAACO SKAAGP Balog; Martin Bratislava SKAANM Bartos; MarekAACI BystricanyAACO SKAAGP Bartos; Marek Bystricany SKAANM Drzik; VladimirAACI BratislavaAACO SKAAGP Drzik; Vladimir Bratislava SKAANM Kocis; IgorAACI ZvolenAACO SKAAGP Kocis; Igor Zvolen SKAANM Krssak; PeterAACI BratislavaAACO SKAAGP Krssak; Peter Bratislava SK - A product, which passages are to be checked is brought to the measuring position, at least one measuring probe containing at minimum one emitting element and at minimum one receiving element is moved toward or inserted into openings of the product passages or an assembly of measuring probes consisting of at minimum one measuring probe containing at minimum one emitting element and at minimum one measuring probe containing at minimum one receiving element is moved toward or inserted into the opening of the product passages, following the part of the assembly consisting of at minimum one measuring probe containing at minimum one emitting element emitting in range of visible spectrum and/or infrared spectrum in the region of wavelength from 400 nm to 1500 nm is turned on and on the measuring probe, containing the receiving element, that forms a pair with the just working emitting element a response—a signal, size of which depends on amount of passed light, is measured, a signal amount is analysed and compared with an expected value. The procedure is then repeated with other sets of emitting and receiving elements on an identically arranged assembly of measuring probes or alternatively arranged assembly of measuring probes moved forward or inserted into another passage opening(s) of the product, until a required amount of measurements enabling to analyse openness of requisite amount of passages in the whole inspected product is achieved, wherein individual assemblies of measuring probes are designed so that the routes between all designed pairs of emitting element-receiving element cover sufficient amount of passages for evaluation of the analysed product. | 01-17-2013 |
20130042675 | RADIATOR GRILLE TESTER - A radiator grille tester of the present invention includes two adapters, a transparent tube, and a detector. The transparent tube and the detector are located between the adapters. The adapters, the transparent tube, and the detector are serial connected and define a channel. The adapters can be connected to an engine and a radiator respectively. | 02-21-2013 |
20130055802 | COMPETENCE DIAGNOSIS SYSTEM FOR UREA WATER TEMPERATURE SENSOR - A competence diagnosis system for a urea water temperature sensor that can limit a diagnosis during a cold start. The system includes a cold start condition determination unit that obtains a difference between an engine cooling water temperature and an ambient temperature, a difference between an engine cooling water temperature and a fuel temperature, and a difference between an ambient temperature and a fuel temperature by using an engine cooling water temperature, an ambient temperature, and a fuel temperature measured immediately after engine starting, and allows a diagnosis by the competence diagnosis unit when the temperature differences are less than or equal to a predetermined threshold value. | 03-07-2013 |
20130319096 | METHOD FOR DETERMINING HEADWIND VELOCITY - A method for determining a velocity of headwind flowing in the direction of a vehicle, based on a coolant mass flow of a coolant flowing through a heat exchanger of a cooling device of the vehicle, and an air mass flow flowing through the heat exchanger and triggered by the headwind, includes: determining a temperature drop of the coolant mass flow; determining the air mass flow responsible for the temperature drop of the coolant mass flow; and determining the velocity of the headwind flowing in the direction of the vehicle, based on the air mass flow responsible for the temperature drop of the coolant mass flow. | 12-05-2013 |
20130319097 | ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR RANKINE CYCLE SYSTEM - An abnormality detection apparatus for a Rankine cycle system includes: a main body that vaporizes a cooling medium that circulates in an internal combustion engine by giving waste heat to the cooling medium; a gas-liquid separator that separates the cooling medium into a gas-phase and a liquid-phase; a superheater that gives waste heat of the engine to the cooling medium; a condensate header tank that stores the liquid-phase cooling medium; a vane pump that pumps the liquid-phase cooling medium. If abnormality of a cooling medium supply portion that supplies the cooling medium to the engine is not detected, the abnormality detection apparatus determines whether a vane pump has abnormality on the basis of the amount of the liquid-phase cooling medium in the gas-liquid separator, the temperature of the gas-phase cooling medium in the superheater and the amount of the liquid-phase cooling medium in the condensate header tank. | 12-05-2013 |
20130327133 | ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR RANKINE CYCLE SYSTEM - An abnormality detection apparatus for a Rankine cycle system includes: a gas-liquid separator that separates a cooling medium that circulates in an internal combustion engine into a gas-phase and a liquid-phase; a superheater that gives waste heat of the engine to the cooling medium; a waste heat recoverer that recovers energy of waste heat of the cooling medium; a valve provided in a passageway; a liquid surface sensor that detects liquid surface level of the liquid-phase cooling medium in the gas-liquid separator; a vapor temperature sensor that detects temperature of the gas-phase cooling medium in the superheater; and an ECU that determines whether the valve is abnormal on the basis of the amount of the liquid-phase cooling medium and the temperature of the gas-phase cooling medium if abnormality of the cooling medium supply portion of the engine is not detected. | 12-12-2013 |
20140144218 | ENGINE COOLING SYSTEM CONTROL - Methods and systems are provided for diagnosing each of a plurality of engine cooling system components including various valves and grill shutters. Each valve may be individually closed and opened for a specified duration, and corresponding changes in coolant temperature may be monitored. If all the components are functional, the various valves may be adjusted to stagnate coolant at the engine and expedite engine warm-up during a cold-start. | 05-29-2014 |
20140283588 | DIAGNOSING A COOLING SUBSYSTEM OF AN ENGINE SYSTEM IN RESPONSE TO DYNAMIC PRESSURE SENSED IN THE SUBSYSTEM - A method of diagnosing a cooling subsystem of an engine system in response a parameter extracted from dynamic hydraulic pressure sensed in the cooling subsystem, and products and systems using same. | 09-25-2014 |
20150107344 | STRUCTURE FOR RETAINING TEMPERATURE SENSING DEVICE AND INTERNAL COMBUSTION ENGINE PROVIDED WITH SAME - A cooling pipe for an internal combustion engine includes with a resin-made water outlet for forming a circulation path for circulating a coolant for cooling an engine body, and an attachment part for retaining a water temperature sensor for sensing the temperature of the coolant flowing through the water outlet, the attachment part being attached to the water outlet, a portion of the attachment part being in contact with the engine body, and the attachment part formed from a material whereby heat from the engine body is transmitted. | 04-23-2015 |
20150107345 | Cooling Device for Internal Combustion Engine and Failure Diagnosis Method for Cooling Device for Internal Combustion Engine - An ECU sets a leakage flow rate flowing through a radiator circulation passage in a closed state of a thermostat valve, calculates an estimated temperature of coolant water in the radiator circulation passage based on a set leakage flow rate and a detected water temperature of an engine-side coolant water temperature sensor, and performs a failure diagnosis for the thermostat valve based on a difference between the calculated estimated temperature and the detected water temperature of the radiator-side coolant water temperature sensor. The leakage flow rate during operation of the electric pump is set to be a larger value as compared to the leakage flow rate during stopping of the pump. As a result, a diagnostic can be prevented by improving an accuracy of failure detection for the thermostat valve. | 04-23-2015 |
20160047292 | SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN A PARTITIONED COOLANT VALVE - A system according to the principles of the present disclosure includes a coolant valve, a valve control module, and a fault diagnostic module. The coolant valve includes a first valve chamber, a second valve chamber, and a partition disposed between the first and second valve chambers. The coolant valve further includes a first end stop disposed on a first outer perimeter surface of the first valve chamber and a second end stop disposed on a second outer perimeter surface of the second valve chamber. The valve control module rotates the coolant valve in a first direction and in a second direction that is opposite from the first direction. The fault diagnostic module diagnoses a fault in the coolant valve based on a measured position of the coolant valve as the coolant valve is rotated in the first and second directions. | 02-18-2016 |
20160153345 | APPARATUS AND METHOD FOR DETERMINING PORE CLOGGING IN ENGINE COOLING SYSTEM | 06-02-2016 |
20160169100 | DIAGNOSIS DEVICE | 06-16-2016 |