SIEMENS VDO AUTOMOTIVE AG Patent applications |
Patent application number | Title | Published |
20090303647 | Apparatus for Short Circuit Protection - The present invention relates to an apparatus for short circuit protection. The apparatus comprises two supply inputs for connecting the apparatus to a terminal of a power supply and two supply paths being connected together and to the supply inputs, wherein each supply path comprises a disconnection means for disconnecting the supply path. Further the apparatus comprises a determination means for determining a current flowing from one of the supply paths through the other one of the supply paths and a control means for controlling the disconnection means of the supply paths dependent on the current determined by the determination means, wherein the control means is connected with the disconnection means and the determination means. | 12-10-2009 |
20090283072 | SEALING ARRANGEMENT OF A PIEZOACTUATOR FOR A FUEL INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE - A sealing arrangement of a piezoactuator ( | 11-19-2009 |
20090242426 | Gas Sensor - Presented is a gas sensor and method for detecting the quantity of a measurement gas contained in a gas mixture. The sensor includes a prechamber, a first pump device disposed in the prechamber configured to set the partial pressure of a free gas component of a detection gas to a predetermined value, and a measuring chamber separated from the prechamber by a diffusion barrier. The measuring chamber includes a detection device configured to determine the concentration of the detection gas. The sensor further includes an inlet chamber separated from the prechamber by a diffusion barrier, a second pump device disposed in the inlet chamber configured to set the partial pressure of the free gas component of the detection gas to a predetermined value, and a third pump device disposed in the measuring chamber and configured to set the partial pressure of the free gas component to a predetermined value. | 10-01-2009 |
20090129436 | Method and device for measuring the temperature of an exhaust gas flow in an exhaust line of an internal combustion engine - A device for measuring a temperature of an exhaust gas flow in an exhaust branch of an exhaust gas section of an internal combustion engine is disclosed. A sub-region of the exhaust branch is configured as a parabolic mirror having a focal point positioned outside of the exhaust branch. The device includes a side channel member attached to the exhaust branch and having an open end adjacent to the exhaust branch and a closed end; and a radiation sensitive sensor disposed in the side channel member and at the focal point. The open end is in fluid communication with an interior of the exhaust branch through a cutout of the exhaust branch so that the sensor is coupled to radiation of the exhaust gas flow for measuring a temperature of the exhaust gas flow. A related method is also disclosed. | 05-21-2009 |
20090127078 | Rotary/push-button controller - The invention relates to a rotary/push-button controller having a controller ring ( | 05-21-2009 |
20090126507 | Flow sensor - A flow sensor for use in a main duct is disclosed. The flow sensor includes a main body having a bypass duct having an inlet and an outlet, a pressure loss element fixedly attached to the main body, and a sensor element disposed in the bypass duct. When the flow sensor is operatively mounted in the main duct, the inlet and the outlet are oriented perpendicularly with respect to a main flow direction of a fluid mass flow in the main duct, the pressure loss element is disposed in the main duct, downstream of the inlet and upstream of the outlet, and the sensor element is operable to generate a measurement signal which is a representative of the fluid mass flow. | 05-21-2009 |
20090126344 | Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine - An exhaust gas catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust gas probe. A predefined first rich air/fuel ration is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined as a function of the measurement signal of an exhaust gas probe and the predefined first rich air/fuel ratio. The exhaust gas catalytic converter is laden with oxygen until it is saturated. A predefined second rich air/fuel ration is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined as a function of the measurement signal of the exhaust gas probe and the predefined second rich air/fuel ration. A corrected oxygen storage capacity value is determined as a function of the first and second oxygen storage capacity values. | 05-21-2009 |
20090125224 | Method for Selecting a Designation - Presented is a method for selecting a label from a multiplicity of labels stored in a memory element. The method includes inputting a handwritten character into a handwritten input apparatus, associating an alphanumeric character with the handwritten input character using a character recognition apparatus, adding the associated alphanumeric character to an already input character string to produce an extended character string, comparing the extended character string with the labels stored in the memory element, and selecting one or more of the stored labels using the comparison. The alphanumeric character is selected from a dynamically alterable character set which contains only characters which, in addition to the already input character string, produce an extended character string, which is an initial component of at least one of the stored labels. Also presented is a motor vehicle navigation system in which address database entries are selected by the above described method. | 05-14-2009 |
20090079140 | Device for sealing sensor and sensor element - An air mass sensor arrangement is disclosed. The air mass sensor arrangement includes a duct having a recess and an outer face; a sensor comprising a main body and a baseplate extending radially outward from the main body, the sensor being releasably attached to the duct by a screw connection so that the main body is partially inserted into the recess and the baseplate faces the outer face; and a sealing arrangement disposed around the recess for sealing between the duct and the sensor. The sealing arrangement includes a first web formed on one of the baseplate and the outer face and completely surrounding the recess. | 03-26-2009 |
20090045763 | Method and Arrangement For Monitoring Signals - The invention relates to a method and to an arrangement for monitoring signals which are guided to a multi-phase motor by an end stage and the pulse width thereof is controlled by a controller. The total of the pulse widths of the signals of each phase is measured by, respectively, a counter, respectively for a predetermined programme flow in the controller. The meter reading is read by a counter according to a predetermined period of time and an error signal is produced if the total amount of time exceeds a predetermined tolerance range. | 02-19-2009 |
20090033260 | Method and device for controlling a brushless direct-current motor - Presented in an apparatus for controlling a brushless DC motor with a permanent magnet arranged on a rotor and a stator with windings. The apparatus includes an observer that is adapted to determine an estimated temperature of the permanent magnet as a function of the temperature of the windings, and determine at least one actuating signal for controlling the DC motor as a function of the estimated temperature of the permanent magnet. | 02-05-2009 |
20080285230 | Electronic Unit with Sealed Coolant Passage - To improve coolant sealing or reduce the risks in the event of leakage for an electronic unit, e.g. an engine control unit, containing electric and/or electronic components which are disposed on an upper side of a thermally conductive electronic base plate and thermally coupled to the base plate, the base plate in turn being thermally coupled to a coolant passage, there is provided a particular configuration and arrangement of the components delimiting a coolant passage. Advantageously, the underside of the base plate can come into direct contact with a coolant (“direct cooling”). By making a ridge running in an annularly closed manner and being formed in one-piece with the base plate, coolant escaping from the coolant passage is prevented from passing directly to the underside of the base plate. Accordingly, the coolant passage may be sealed by a “double sealing arrangement” on the underside of the base plate. | 11-20-2008 |
20080284559 | Device for Controlling an Air Conducting Element in a Motor Vehicle - The invention relates to a device and a method for controlling at least one air conducting element ( | 11-20-2008 |
20080218870 | Head-Up Display Comprising a Deformable Mirror - The invention relates to a head-up-display ( | 09-11-2008 |
20080212281 | Cooling System for Electronics Housing - A cooling system through which liquid flows for carrying away waste heat for electronics housings is particularly suited for the automotive industry. The cooling system is adapted to the dimensions of the housing. The novel device is the first to create an effective cooling system for electronics housings with and for a number of circuit board levels, yet with a space-saving compact design. | 09-04-2008 |
20080211345 | Method and Device for Controlling a Capacitive Load - A tendency of the controlled load to oscillate when controlling a capacitive load can be avoided according to a piezo actuator for an injection valve of an internal combustion engine, having charging and discharging processes for charging and discharging the capacitive load by means of a load current, each loading process being effected by chronological partial load current pulses according to chronological partial charging capacity pulses (p | 09-04-2008 |
20080204263 | Device and Method for Detecting Seat Occupancy - A device and a method for detecting seat occupancy, with the device including first and second sensor elements associated with a respective seat surface. First and second weight-dependent sensor signals are electrically obtainable from the sensor elements. The seat occupancy is determined by taking either the first or the second sensor signals in dependence on an ambient temperature. | 08-28-2008 |
20080203952 | Electronic Control Unit For Controlling External Half-Bridge Power Output Stages and an Electric Motor Operated Drive With Electronic Control Unit - In order to control an electromotive drive, a control unit has control modules for controlling half-bridge end power stages. Two of the control modules are pre-configured for alternatively controlling a commutator motor or a brushless electric motor via two half-bridge end power stages. A third control module can be subsequently configured to control a third half-bridge end power stage or two individual switching elements. An electromotive drive ideally can be configured with the stated control unit. | 08-28-2008 |
20080197904 | Circuit Arrangement for Switching a Load - A circuit arrangement for switching a load includes at least one at least partially inductive load, at least one high side switch with a controlled path connected in series with the load and between supply terminals for a supply voltage. At least one freewheeling diode is connected with a first tap between the high side switch and the load. At least one clamp circuit is connected to a control terminal of the high side switch and is used to limit the control potential applied to the control terminal to a first pre-determined voltage value when the high side switch is switched off. | 08-21-2008 |