Patent application number | Description | Published |
20090138183 | Adaptive Positioning Method for an Actuator - In an adaptive positioning method for an actuator, in particular, for a throttle butterfly on an internal combustion engine, during the adaptive positioning method, after a request for a set position and selection of a pilot value a corresponding pilot position for the actuator is adopted. The pilot position is adjusted until said position corresponds to the requested set position. The control value actually required or this set position is subsequently measured and recorded as corrected pilot value for the corresponding set position. | 05-28-2009 |
20100064664 | METHOD FOR CHECKING THE SEAL OF A REAGENT INJECTOR - In a method for checking the seal of a reducing agent injector of an SCR exhaust gas aftertreatment system of an internal combustion engine comprising at least one reducing agent tank, a reducing agent pump, a reducing agent injector and an NOx sensor connected downstream from the SCR catalytic converter, the following steps are carried out: a) Generation and/or detection of a release state of the SCR system in which no reducing agent is stored in the SCR catalytic converter; b) Determining a setpoint NOx value in the exhaust gas; c) Starting the seal check with a closed reducing agent injector by increasing the reducing agent pressure; d) Detecting the NOx signal at the NOx sensor, and a) Evaluating the NOx signal. | 03-18-2010 |
20100218484 | METHOD AND DEVICE FOR CONTROLLING AN SCR-EXHAUST GAS AFTER-TREATMENT SYSTEM OF AN INTERNAL COMBUSTION ENGINE - A method for controlling an SCR-exhaust gas after-treatment system ( | 09-02-2010 |
20100257842 | METHOD FOR DETECTING THE MINIMUM OPENING TIME OF A REDUCING AGENT FEED DEVICE IN AN EXHAUST GAS AFTERTREATMENT SYSTEM COMPRISING AN SCR CATALYST - In a method for adapting the reducing agent feed in an exhaust gas aftertreatment system having an SCR catalyst for removing nitrogen oxides from the exhaust gas of an internal combustion engine and at least one reducing agent feed device, the minimum opening time of the reducing agent feed device is determined during operation and while suspending nitrogen emission, carrying out the following steps: a) the opening time of the reducing agent feed device is gradually prolonged until b) a reducing agent-sensitive sensor in the exhaust gas aftertreatment system detects a reducing agent signal. An exhaust gas aftertreatment system is designed accordingly for carrying out the method and a device is designed for controlling an exhaust gas aftertreatment system. | 10-14-2010 |
20110239625 | METHOD AND DEVICE FOR ADAPTING THE INJECTION AGENT SUPPLY IN AN INJECTION SYSTEM, AND EXHAUST GAS AFTERTREATMENT SYSTEM - In a method and a device for adapting the injection agent supply for an emission control system, the following steps are carried out: a) setting of a agent pressure target value in the line upstream of the pump in relation to the ambient pressure; b) opening of the pressure relief valve for a predetermined time t; c) determining the pressure difference between the target and the injection agent pressure, caused in step b), immediately after step b); d) setting a target value for the agent pressure in the line downstream of the pump in relation to the exhaust gas pressure in the system; e) opening of the injector for a predetermined time t; f) determining the pressure difference between the target and the agent pressure, caused in step e), immediately after step e); g) comparing the pressure differences from steps c) and f); and h) optional adaptation of the injector opening time. | 10-06-2011 |
20120319833 | Method for Assisting in Maintenance of a Motor Vehicle - A method for assisting in maintenance of a motor vehicle having a drive motor, an drive energy storage device, and a filling level measuring device. A request for a maintenance process is identified by a self-monitoring device with the maintenance request being transmitted as a maintenance indication to a driver by an information device. The maintenance indication is transmitted to the driver as a function of a switch-off filling level present when the vehicle drive motor is switched off and detected by the filling level measuring device. The maintenance indication is transmitted when the switch-off filling level is lower than a preset filling level threshold value or when a filling level difference between a switch-on filling level, present when the vehicle drive motor is subsequently switched on again and detected by the filling level measuring device, and the preceding switch-off filling level indicates a positive filling level value. | 12-20-2012 |
20130200919 | Method And Apparatus For Determining At Least One Operating Parameter Of A Thermoelectric System In A Vehicle - A method is provided for determining at least one operating parameter of a thermoelectric system in a vehicle, wherein the thermoelectric system comprises an energy conversion device having at least one photovoltaic element for converting thermal radiation, which is emitted by a heat source of the vehicle, into electrical energy. The method includes measuring an electrical power of the photovoltaic device, and determining an operating parameter of the thermoelectric system based on the measured electrical power of the photovoltaic device. | 08-08-2013 |
20130238180 | Method for Distributing Energy in an Electric Vehicle and Electric Vehicle - A method is disclosed for distributing energy in an electric vehicle including at least one electric energy store and at least one conditioning module, which can be used to generate electric energy from fuel, as energy sources, wherein driving-related information, or information about a state of the electric vehicle, is recorded before driving, or when beginning to drive, the electric vehicle and, while driving, energy is distributed in the vehicle on the basis of the information. | 09-12-2013 |