| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123479000 | Backup systems, fail-safe, failure indicator | 6 |
| 20080202475 | Device for Charging and Discharging at Least One Piezoactuator for an Injection Valve of an Internal Combustion Engine - A device for controlling at least one piezoactuator for an injection valve of an internal combustion engine, including a microcontroller that controls an output stage which generates the load current for charging and discharging the piezoactuator. The microcontroller controls the output stage through an integrated circuit. A discharge circuit interacts with the integrated circuit to reliably discharge the piezoactuator in case of a failure of the output stage and/or of a safety path of the microcontroller. The load current during the discharge is controlled by a control circuit having a controller which is part of the integrated circuit. The discharge circuit has emergency discharge elements that are activated in case of a failure of the controller or of the integrated circuit. | 08-28-2008 |
| 20090133671 | DRIVE CIRCUIT FOR AN INJECTOR ARRANGEMENT AND A DIAGNOSTIC METHOD - The invention relates to a drive circuit for an injector arrangement comprising a first fuel injector in parallel with a capacitive component. The drive circuit comprises: a selector means and diagnostic means. The selector means is operable to select the first fuel injector and/or the capacitive component into the drive circuit and to deselect the first fuel injector and/or the capacitive component from the drive circuit. When the capacitive component is selected and the first fuel injector is deselected, the diagnostic means is operable to sense a current through the first fuel injector. When the sensed current is at variance from a first threshold current the diagnostic means is operable to provide a first signal on detection of a stack terminal short circuit fault associated with the first fuel injector. The capacitive component may be a second fuel injector. | 05-28-2009 |
| 20090308355 | Fuel injection control method and fuel injection control apparatus - An electronic control unit corresponding to a fuel injection control apparatus measures an interval time in ignition signals input by wirings, detects an erroneous connection of wiring by comparing a combination of the measured interval times with a combination of interval times in the case that the wiring is in a correct connection in the same engine stroke, which is previously stored, corrects a setting in such a manner as to output the fuel injection signal to the same cylinder at the same timing as the case that the wiring is in the correct connection, by detecting the erroneous connection and stores the setting, and thereafter outputs a fuel ignition signal on the basis of the corrected setting. | 12-17-2009 |
| 20100024777 | Method for the localization of a fault location within a fuel injection system - In a method for localizing a fault location within a fuel injection system, when a critical fault is detected by the diagnostic function, a pulse or a series of pulses to the injectors is triggered by a control unit. By observing the voltage value and/or charge value at the injector, it is possible to localize the fault location within the fuel injection system. | 02-04-2010 |
| 20130000607 | FUEL SUPPLY APPARATUS FOR INTERNAL COMBUSTION ENGINE - A fuel supply apparatus applied to an internal combustion engine ( | 01-03-2013 |
| 20140109876 | METHOD FOR MONITORING A PASSIVE PRESSURE REGULATION VALVE - Proposed is a method for monitoring a passive pressure limiting valve ( | 04-24-2014 |
