Class / Patent application number | Description | Number of patent applications / Date published |
073114430 | Fuel pressure | 19 |
20080202225 | Dynamometer Element - A dynamometer element including a bolt on which a diaphragm is mounted, the diaphragm being surrounded by a sleeve, to which a force component to be measured is applied perpendicularly to the longitudinal direction of the bolt, the sleeve being spaced from the bolt in such a way that the diaphragm is strained as a function of the force component, a sensor system for measuring the strain being provided on the diaphragm. | 08-28-2008 |
20080209992 | PRESSURE SENSOR AND PRESSURE CONTROL SYSTEM - A pressure sensor comprises a reference voltage generating part which generates a predetermined voltage as a reference and a sensing part which senses the pressure of the detection object and outputs a signal according to the pressure therein. The outputs of the reference voltage generating part and the sensing part are inputted to a tri-state buffer. Switch terminals of the tri-state buffers are connected with the command line. When the command signal is applied to the command line, either one of the output of the reference voltage generating part or the sensing part is outputted to the output line. | 09-04-2008 |
20080264156 | PROCEDURE FOR DIAGNOSING A FUEL TANK VENTILATION SYSTEM OF A VEHICLE AND DEVICE FOR IMPLEMENTING THE PROCEDURE - A procedure for diagnosing a tank system of a vehicle with at least two controllable tank ventilation valves, with at least two points of release for a tank ventilation mixture, whereby at least a first point of release runs into an inlet manifold of a combustion engine downstream of a throttle device and at least a second point of release is arranged in an inlet manifold of the combustion engine upstream of the throttle device, especially upstream of a compressor, is thereby characterized, in that for diagnosing the functionality of the tank ventilation system the at least two tank ventilation valves are controlled independently of each other and its functionality can be implied due to the pressure that occurs in the tank system. | 10-30-2008 |
20090007647 | Method for a plausibility check of the output signal of a rail pressure sensor - A method for checking the output signal of a rail pressure sensor of a direct-injecting internal combustion engine having a common rail system for plausibility, including the following steps:
| 01-08-2009 |
20090019926 | Method for operating a fuel-injection system, in particular of an internal combustion engine - A method for operating a fuel-injection system, in particular of an internal combustion engine, in which fuel stored inside a pressure reservoir is injected by at least one fuel injector. At least one performance quantity of the fuel injector that is a function of the fuel pressure prevailing inside the pressure reservoir is evaluated in order to infer the fuel pressure. | 01-22-2009 |
20090049898 | DIAGNOSTIC SYSTEMS AND METHODS FOR THE HIGH PRESSURE SIDE OF FUEL SYSTEMS IN COMMON FUEL RAIL ENGINES - A fuel system diagnostic module comprises a pressure module and a fault diagnostic module. The pressure module determines first and second pressures of a fuel rail of a fuel system at first and second times, respectively. The second time is after shutdown of an engine. The fault diagnostic module selectively diagnoses a fault in the fuel system based upon a comparison of a predetermined period with a period between the engine shutdown and the second time. | 02-26-2009 |
20090199627 | Device and Method for Monitoring a Fuel Metering System - A method and device for monitoring a fuel metering system, in which fuel is pumped from a low-pressure zone into a high-pressure zone. The pressure in the high-pressure zone is detected. An error is recognized on the basis of the pressure variation in the high-pressure zone. The type of error is recognized on the basis of the shape of a pressure drop curve. The variation of the pressure quantity over time is approximated using a function such as the hyperbolic function. The type of error is recognized on the basis of the quantity characterizing the function. | 08-13-2009 |
20090241650 | FUEL PRESSURE SENSOR/SENSOR MOUNT ASSEMBLY, FUEL INJECTION APPARATUS, AND PRESSURE SENSING APPARATUS - A fuel pressure sensor/sensor mount assembly in which a fuel pressure sensor is so mounted as to exposed to a high-pressure fuel path through which fuel is supplied to a fuel injector, a fuel injection apparatus equipped with a built-in fuel pressure sensor, and a pressure sensing apparatus working to measure the pressure of fuel in a fuel injector are provided. The fuel pressure sensor/sensor mount assembly is disposed between the high-pressure fuel path and the fuel injector, thus permitting the size of the fuel injector to be minimized without sacrificing the accuracy in measuring the pressure of the fuel. The fuel injection apparatus and the a pressure sensing apparatus are designed to ensure desired accuracy in measuring the pressure of the fuel. | 10-01-2009 |
20090314072 | Method and system for detecting a cap off situation on the fuel tank of a vehicle - Method for detecting a cap off situation on the fuel tank of a combustion engine vehicle having a fill pipe head located under a fuel fill door, according to which a cap off test is run when the engine is started again after having been switched off and when a door switch indicates that the fuel fill door has been opened. | 12-24-2009 |
20100011849 | Method of Determining Ambient Pressure for Fuel Injection - A method of controlling a motor vehicle is disclosed. The method can be used to determine an ambient pressure value without the use of an ambient pressure sensor. The ambient pressure value can be used for controlling a set of fuel injectors. The method can include provisions for adjusting the ambient pressure value to correct for errors introduced by engine wear and other factors. | 01-21-2010 |
20100229638 | FUEL PROPERTY DETECTION DEVICE - In a fuel property detection device, a fuel housing is made of a thin-plate metal member that can be elastically-deformed by a fuel pressure in a fuel chamber. Thus, if the fuel pressure in the fuel chamber is increased, the fuel housing expands and the pressure in the fuel chamber is decreased. Further, if the fuel pressure in the fuel chamber is decreased, the fuel housing contracts and the pressure in the fuel chamber is increased. That is, the fuel housing functions as a kind of damper. Therefore, in the fuel property detection device, generation of abnormal noise due to fuel pulsation or the like, and a positional change of the electrodes due to the fuel pulsation or the like can be prevented. | 09-16-2010 |
20100294030 | FUEL SYSTEM DIAGNOSTIC SYSTEMS AND METHODS - A diagnostic system comprises a monitoring module and a diagnostic module. The monitoring module receives a first rail pressure measured by a high side rail pressure sensor during engine cranking at a location where fuel is pressurized by a high pressure fuel pump. The diagnostic module selectively diagnoses a fault in at least one of the high pressure fuel pump and the high side rail pressure sensor when the first rail pressure is less than a predetermined pressure and rail pressures received during a predetermined period after the first rail pressure is received are less than the predetermined pressure. | 11-25-2010 |
20110016958 | DIAGNOSTIC SYSTEM FOR VALVE ACTUATION CAMSHAFT DRIVEN COMPONENT COMPENSATION - A diagnostic system and method for operating the same includes a pressure monitoring module generating a diagnostic pressure signal and a camshaft driven engine component correction module generating an engine component oil pressure correction signal and generating a corrected diagnostic pressure signal based on the diagnostic pressure signal and the engine component oil pressure signal. The system further includes a diagnostic module generating a failed variable valve lift mechanism signal based on the corrected diagnostic pressure signal. | 01-27-2011 |
20110041594 | PRESSURE COMPENSATION UNIT - A pressure-compensation unit, particularly for a tank-pressure sensor in a tank of a motor vehicle. The pressure-compensation unit includes a housing lid and a gas-permeable filter diaphragm, which covers an air hole. The pressure-compensation unit includes a cap-shaped cover element, which covers the filter diaphragm. | 02-24-2011 |
20120090391 | DIAGNOSIS APPARATUS FOR LEAKAGE MECHANISM IN INTERNAL COMBUSTION ENGINE - After an engine stop duration exceeds a predetermined time period (that is, if a decision outcome of S | 04-19-2012 |
20120247193 | ELECTRONIC COMPONENT DEVICE PROVIDED WITH COUNTERMEASURE FOR ELECTRICAL NOISE - The electronic component device includes an electronic component such as a pressure sensor for detecting pressure of fuel injected into an internal combustion engine, an insulating member made of an insulative resin and sealing the electronic component, and a shield member made of a conductive resin and surrounding the insulating member. | 10-04-2012 |
20120255348 | METHOD FOR CHECKING A FUNCTIONALITY OF A RAIL PRESSURE SENSOR - A method for checking a rail pressure sensor, in which at least two values for the pressure of fuel in a fuel reservoir of an injection system are set on the basis of values for the pressure, which are ascertained by the rail pressure sensor; a desired quantity of fuel to be injected that is demanded by an idle-speed controller being ascertained for each set value of the pressure; and the desired quantities being compared to one another. | 10-11-2012 |
20150075267 | FUEL TANK PRESSURE SENSOR RATIONALITY TEST FOR A PHEV - A method for verifying reliable operation of a fuel tank pressure transducer coupled to a fuel tank of a PHEV. The method monitors pressure and fuel level within the fuel tank, employing a fuel level sensor providing fuel level signals to a controller, as well as a pressure transducer providing pressure signals to the controller. The system identifies a sloshing event, as indicated by high amplitude, rapidly fluctuating fuel level signals, and it then analyzes the vapor dome pressure signals to determine whether vapor dome pressure signals respond to the sloshing event. Reliable operation of the fuel tank pressure transducer is indicated upon a determination that the vapor dome pressure signals appropriately respond to the sloshing event. | 03-19-2015 |
20160061136 | DEVICE FOR DETECTING THAT FUEL SHUT-OFF VALVE IS STUCK CLOSED - Disclosed is a device for detecting any fixed closure of a fuel shut-off valve | 03-03-2016 |