Patent application number | Description | Published |
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 |
20090121706 | Active Sensor Element and Method of Determining the Temperature of an Active Sensor Element - The invention relates to an active sensor element for recording the speed of an exhaust gas turbocharger, comprising a suppressor circuit which has at least one diode. In order to specify a device for temperature measurement at the turbocharger and in particular at the turbocharger in the region of the active sensor, the current-voltage characteristics of the diode are evaluated for determining the temperature in the sensor element. | 05-14-2009 |
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 |
20090243886 | Arrangement Comprising a Vehicle Component and at Least One Electroacoustic Transducer, Especially an Ultrasonic Transducer - Presented is an apparatus that includes a vehicle component that includes an outer wall that includes an internal face and at least one electro-acoustic transducer disposed on the internal face of the outer wall of the vehicle component. The at least one electro-acoustic transducer includes a pot-type housing and a piezo-electric ceramic body disposed inside the pot-type housing. The pot-type housing includes a base area affixed to the internal face of the outer wall of the vehicle component. | 10-01-2009 |
20090290988 | Element which Generates a Magnetic Field - An element which generates a magnetic field for fastening a compressor wheel to a turboshaft of an exhaust-gas turbocharger, has a basic body and a thread. In order to specify an element which generates a magnetic field for fastening a compressor wheel to a turboshaft, which element generates as high a magnetic field strength as possible and nevertheless can absorb without damage the forces and the tightening torques which occur during fastening of the compressor wheel to the turboshaft, the entire basic body includes a magnetic material and a sleeve is arranged in the basic body, which sleeve includes a non-magnetic material and has the thread which can be screwed to a mating thread of the turboshaft. | 11-26-2009 |
20090304043 | Temperature Sensor - The invention relates to a temperature sensor comprising a sense element and being in contact with a housing configured as a contact wire of the temperature sensor. A contact wire arranged inside the housing, is configured concentrically and is held under spring tension with an angular spring. For testing purposes, a testing resistor, being connected parallel to the sensor element is proposed. | 12-10-2009 |
20090320579 | Method and device for measuring an effective normal force on a disk brake - A method and a device for measuring a normal force affecting a disk brake that is used particularly in motor vehicles. In order to further develop a device for measuring an effective normal force so as to significantly decrease the additional mounting space required in the area of a disk brake and reduce sensitivity to thermal influences, a shearing movement of a part of the disk brake relative to a reference is detected by a sensor such that a test signal-processing logic circuit can draw conclusions about an actually effective normal force based on a sensor test signal. | 12-31-2009 |
20100026284 | Element for Generating a Magnetic Field - An element for generating a magnetic field, having an annular frame for receiving an annular magnet which rotates with a turboshaft. The magnet is mounted in the frame such that the frame stabilizes and guides the magnet mechanically. In order to specify an element for generating a magnetic field which reliably fixes and guides the magnet, the magnet is connected to the frame by at least one spot weld. | 02-04-2010 |
20100059022 | Method, Device, and System for Operating an Internal Combustion Engine - A device and a method for operating an internal combustion engine having at least one cylinder and a tank ventilation system with a line designed to provide pneumatic communication between the tank ventilation system and the at least one cylinder. The line has at least one sensor for determining a hydrocarbon content of a gas flow. A determination, as a function of a measurement signal from the sensor, of a hydrocarbon content of a gas flow flowing from the tank ventilation system to the at least one cylinder is performed. At least one characteristic variable for a fuel quantity to be metered is determined as a function of the determined hydrocarbon content. A metering of fuel into the cylinder is determined as a function of the at least one determined characteristic variable. | 03-11-2010 |
20100175375 | Waste gate actuator for an exhaust gas turbocharger - A waste gate actuator for an exhaust gas turbocharger, including an actuator housing and an actuator cover, an element for actuating the waste gate valve and electronic components for controlling the element to actuate the waste gate valve being arranged in the waste gate actuator. Provided is a simple and inexpensive revolution counting system on the turbocharger which allows the number of revolutions of the rotating parts (turbine wheel, compressor wheel, turboshaft to be detected without substantial constructional alterations to the design of existing turbochargers. A sensor for detecting the variations in a magnetic field that are produced by the rotation of the rotating parts is arranged in or on the actuator housing or in or on the actuator cover. | 07-15-2010 |
20100178132 | Magnetized Nut For Fastening a Compressor Wheel of an Exhaust Turbocharger to the Turbo Shaft, and Method for the Production Thereof - A magnetized nut for fastening a compressor wheel of an exhaust turbocharger to a turbo shaft. The nut has a base body made of a non-magnetic material forming a hollow space for accommodating a magnetic material, and a method for the production of the magnetized nut. In order to provide a magnetized nut that is produced in a simple and cost-effective manner and ensures as equal a distribution of mass as possible with regard to the rotational axis of the nut, the magnetic material is introduced into the hollow space using injection molding. | 07-15-2010 |
20100186482 | Sensor for Measuring Hydrocarbon Content in a Flow of Gas in a Purge Line - A sensor for the measurement of the hydrocarbon content in a flow of gas in a purge line. The sensor can measure the hydrocarbon content in the flow of gas in the purge line from a hydrocarbon storage device to an internal combustion engine. The sensor has at least one heating element and at least one thermal detector, with the heating element heating the flow of gas while the thermal detector determines the temperature of the flow of gas, which temperature is evaluated as a measurement of the hydrocarbon content in the flow of gas. | 07-29-2010 |
20100199749 | Arrangement for determining a characteristic variable of a fluid, sensor device and use in a motor vehicle - An arrangement and method for determining a characteristic variable of a fluid having a movably suspended measuring element, a restraining element, an advancing element and a control device. The control device is designed to actuate the restraining element and/or the advancing element in order to move the measuring element between the first measuring point and the second measuring point, to determine a time period which the measuring element requires in order to be moved between the first measuring point and the second measuring point, and to determine a characteristic variable of the fluid on the basis of the determined time period, a predetermined force and a known geometry. | 08-12-2010 |
20100209256 | Element which Generates a Magnetic Field - An element which generates a magnetic field for securing a compressor wheel to a turboshaft of an exhaust-gas turbocharger, includes a base body that receives an annular-shaped magnet that rotates with the turboshaft. In order to provide an element which generates a magnetic field for securing a compressor wheel to a turboshaft of an exhaust-gas turbocharger, where the magnet is securely fixed and no change in the distribution of mass in the magnetic field occurs even when the magnet breaks, the magnet is connected in a force-fitting manner to the base body. | 08-19-2010 |
20110126611 | Hydrogen Sensor and A Detection Method for Hydrogen Concentration - A hydrogen sensor includes a support having a first temperature sensor, a heating element and an evaluation unit. The hydrogen sensor furthermore includes a mass flow reduction apparatus by which a gas mass flow over the first temperature sensor and the heating element is reduced. The evaluation unit determines a hydrogen concentration in a gas or gas mixture based on a first temperature detected by the first temperature sensor. A detection method for hydrogen concentration having the hydrogen sensor and a motor vehicle having a fuel cell drive having the hydrogen sensor. | 06-02-2011 |
20110137540 | Internal Combustion Engine and Method for Operating an Internal Combustion Engine of Said Type - During the operation of an internal combustion engine which has at least one sensor for measuring a hydrocarbon content and a mass flow rate of a gas flow through a line, the hydrocarbon content and the mass flow rate of the gas flow are determined. The gas flow through the line is controlled as a function of the determined values. | 06-09-2011 |
20110156727 | Soot Sensor - A soot sensor for the detection of soot particles in an exhaust gas flow, having interdigitally engaged measurement electrodes applied on a substrate. An electrical resistance between the measurement electrodes is a measure of soot load of the exhaust gas flow. The measurement electrodes are divided into two regions, a first region in which no soot particles can be deposited and a second region where soot particles are deposited from the exhaust gas flow. The first region and the second region are exposed simultaneously to the other conditions prevailing in the exhaust gas flow. | 06-30-2011 |
20110174276 | Internal Combustion Engine and Method for Opertating an Internal Combustion Engine of this Type - During operation of an internal combustion engine system which has at least one sensor for measuring a hydrocarbon content of a gas stream in a line, a temperature is determined at the at least one sensor. If the temperature is greater than a prespecified temperature, the flow of gas through the line is interrupted. | 07-21-2011 |
20110226804 | Method for rapidly emptying the activated carbon filter while using an HC sensor (concentration change) - A method for rapidly emptying an activated carbon filter while using an HC sensor (concentration change). A device for a tank system, for a motor vehicle having the device for a tank system and to a method for emptying an activated carbon filter for a tank system. The concentration of volatile components which are flushed from the activated carbon filter is detected by a concentration sensor. The concentration sensor is used as an early warning sensor to prevent any disturbances of mixture production of an engine. | 09-22-2011 |
20110289999 | Method and Device for Calibrating a Sensor - A tank ventilation system having an intake tract, the tank ventilation system including a hydrocarbon reservoir, a sensor, and a valve. The valve and the sensor are arranged in a fluid line that couples the hydrocarbon reservoir to the intake tract. The sensor captures a hydrocarbon concentration of a fluid in the fluid line. A captured value of the hydrocarbon concentration is measured using the sensor. When the open valve, a mass flow of the fluid flowing through the fluid line into the intake tract is captured or determined. An air/fuel ratio of an air/fuel mixture fed to the internal combustion engine is determined. An estimated value of the hydrocarbon concentration in the fluid line is determined according to the mass flow of the fluid and the air/fuel ratio. The sensor is calibrated according to the captured value of the hydrocarbon concentration and the estimated value of the hydrocarbon concentration. | 12-01-2011 |
20110300787 | Tank Ventilation System - A tank ventilation system includes a flushing line, off which a bypass branches and into which the bypass opens out. A sensor is arranged in the flushing line bypass to determine a concentration of hydrocarbons in a fluid in the flushing line. A hydrocarbon tank is coupled via a first connector to a first end of the flushing line and designed for coupling, via a second coupling, to a tank. | 12-08-2011 |
20120285857 | Tank Device For Storing A Liquid Medium That Reduces Pollutant Levels - A tank device for storing a liquid medium for reducing pollutant levels in exhaust gases includes a container for storing the liquid medium, having a container wall, which is a first plastic at least in a first contact area. The tank device furthermore includes a support element, which is arranged in an aperture in the container wall and has an overmolding which is a second plastic at least in a second contact area. The second contact area is coupled to the first contact area of the container wall in a substantially liquid-tight manner. | 11-15-2012 |
20140041442 | Arrangement And Method For Determining A Concentration Of A Constituent Of A Fluid Mixture - A method and arrangement for determining a concentration of a constituent of a fluid mixture in a fluid chamber includes: emitting an ultrasonic pulse into the fluid mixture, receiving a reflection of the ultrasonic pulse as a measurement signal after the ultrasonic pulse has been reflected at at least two impedance jumps, determining the concentration of the constituent of the fluid mixture on the basis of the measurement signal. | 02-13-2014 |
20140144416 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - The internal combustion engine includes at least one cylinder, an exhaust gas tract having a measuring device, and a tank ventilation system having a purge air line, which provides pneumatic communication between the tank ventilation system and the cylinder. The purge air line has a sensor for ascertaining a hydrocarbon content of a gas flow from the tank ventilation system to the at least one cylinder. Fuel metering into the cylinder is controlled dependent on the ascertained hydrocarbon content. An exhaust gas characteristic of an exhaust gas flow that flows in the exhaust gas tract is detected by the measuring device and compared with a specified target value. If the ascertained difference between the detected exhaust gas characteristic and the specified target value exceeds a specified threshold, a test is carried out to determine whether the sensor has a malfunction. | 05-29-2014 |