摘要:
A processor-oriented device provides a watchdog timer having a test mode programmable reset. When the device is placed in a test mode by pulling a test mode hardware pin during a reset of the timer and then an appropriate write key is provided to the timer, a watchdog timer reset count is writeable, allowing for a programmable duration for a watchdog timer reset. The watchdog timer reset count may be a reset duration value maintained by a watchdog timer reset counter. Based on both a test mode signal from watchdog timer test mode enable logic and a write key, watchdog timer reset write enable logic enables writes to the watchdog timer reset count.
摘要:
The invention relates to a device for determining at least one parameter of at least one medium, said medium being introducible into at least one measuring path. An electric and/or electromagnetic field can be partially coupled into or out of the medium by passing at least one electric and/or electromagnetic signal into the measuring path. The measuring path comprises at least one line arrangement having at least two elementary cells arranged along the measuring path, said elementary cells comprising at least one electric path from at least one input to at least one output and comprising at least one respective capacitative element. The electrical properties of the capacitative element can by be modified by the medium. The electric and/or the electromagnetic signal can be applied to the input of a first elementary cell and the output of the first elementary cell can be connected to the input of a second elementary cell. The capacitative element of the respective elementary cell is arranged in the electric path of the first and second elementary cell. At least one inductive element connects the first elementary cell and the second elementary cell to a ground. The invention also relates to a method for determining a parameter of a medium.
摘要:
A method for periodically reactivating copper-containing catalyst material includes applying an oxygen-containing gas stream to the catalyst material for reactivation purposes. When the reactor is in the warm operating state, the application of the oxygen-containing gas stream to the catalyst material is interrupted when the monitored temperature of the catalyst material exceeds a maximum level which is a predeterminable tolerance level above a predetermined operating temperature. In cold-start phases, initially a mixture of a fuel and an oxygen-containing gas stream is fed to the catalyst material, until the monitored temperature of the catalyst material exceeds a predeterminable switch-over level, after which only the oxygen-containing gas stream is supplied. To keep the reactor warm after operation has ended, the reactivation can be activated each time the temperature falls below a further threshold level.
摘要:
A process for manufacturing a catalyst body for generating hydrogen having at least one thin, large-surface catalyst layer, through which the reaction mixture can be passed includes steps of pressing a copper powder (particularly dendritic copper) to form a thin and highly compressed layer which forms a formed body, sintering, the formed body in a reducing atmosphere so that a net-type carrier structure made of copper is formed, and activating a surface layer of the formed body.
摘要:
A device having a plurality of chambers for carrying out a solid-catalyzed reaction includes a common evaporation unit for evaporating liquid starting materials. The evaporation unit is in thermally conductive contact with a plurality of chambers. An area of the evaporation unit in which the evaporation substantially takes place is at least partially surrounded by the plurality of chambers.
摘要:
A process for generating a high-hydrogen, low-carbon monoxide gas comprises generating a product gas in a gas generating device. The product gas contains hydrogen and carbon monoxide that are generated from catalytic water vapor reforming of a water/fuel mixture and/or from partial oxidation of an oxygen/fuel mixture. In a gas purification stage, the carbon monoxide fraction in the product gas is reduced by selective CO oxidation on an oxidation catalyst. During a starting phase, oxygen is admixed to the supplied fuel and the flow direction is reversed such that the flow first takes place through the gas purification stage and only then through the gas generating device.
摘要:
A gas generating system for a fuel cell system as well as to a method of operating same. In order to provide hydrogen-containing combustible gas as rapidly as possible and to reduce the exhaust gas emissions, for the start of the operation of the gas generating system, at least one catalytic burner is started and the generated heat is used for evaporating a combustion agent and/or water and for the heating-up of an additionally connected partial reforming unit or partial oxidation stage in order to generate a hydrogen-containing gas for the fuel cell unit by reforming or partial oxidation.
摘要:
A process for operating a methanol reforming system in which, in the reforming reaction operation, methanol is reformed in a methanol reforming reactor using a methanol reforming catalyst. The reforming reaction operation is interrupted periodically for catalyst reactivation phases during which the methanol reforming catalyst whose catalytic activity decreases in the reforming reaction operation is treated in an activity-regenerating manner. The process may be used in fuel-cell-driven motor vehicles for generating hydrogen for the fuel cells from methanol carried along in the liquid state.
摘要:
A device for utilizing heat generated by a catalytic reaction has a first area for heating (vaporizing) at least one starting material which is to be reacted, particularly a reaction mixture. A second area is provided for at least partially carrying out the catalytic reaction or for further reaction of reaction products formed during the catalytic reaction and/or for at least partial cooling of reaction products formed during the catalytic reaction. The first area and the second area are in thermally conductive communication.
摘要:
A method provides information relating to the operational state of a motor vehicle to a driver. The motor vehicle has at least one electric motor operating with a fixed gear ratio for driving the motor vehicle. During operation of the electric motor a virtual speed and a virtual gear-shift stage are continuously determined from at least one first operating parameter describing the operational state of the motor vehicle and an acoustic output, in particular an output of an engine noise, takes place on the basis of the virtual speed and the virtual gear-shift stage.