9 Fuel cells, batteries and electric accumulators for vehicles; computer programs, software and control programs for the operation and testing of internal combustion engines; computer programs, software and control programs for the study of exhaust gas emissions, their occurrence and reduction; computer programs, software and control programs for strains, stresses, oscillations, noise generation, noise propagation, and noise emission; computer programs, software and control programs for external flow of moving parts and bodies, in particular of land, air, and sea vehicles; computer programs, software and control programs for flow processes and combustion processes and fuel-mixture generation and charging processes and fuel-mixture laminating processes within an engine; computer programs, software and control programs for flows in enclosed spaces, in particular air conditioning; computer programs, software and control programs for the simulation of thermodynamic processes, flows, temperature and pressure curves, the temperature distribution in solid bodies, in particular in components of internal combustion engines and their assemblies, of combustion and detonation procedures; computer programs, software and control programs for the combination or conjunction of simulation programs; computer programs, software and control programs for the evaluation and development of engines, gear drive, transmission topologies, vehicles and operational strategies; computer programs, software and control programs for the qualitative and quantitative assessment of the exhaust of engines and vehicles; computer programs, software and control programs for the assistance of the test engineer during the performance of the calibration of engines and vehicles; computer programs, software and control programs for diagnostic and monitoring apparatus and instruments for vehicle batteries and fuel cells; computer programs, software and control programs for the assessment, simulation and development of electric motors, their power electronics and hybrid drives; computer programs, software and control programs for the evaluation, simulation and analysis of driving behavior of vehicles; computer programs, software and control programs for the for the thermo-dynamical assessment of internal combustion engines; computer programs, software and control programs for comparing evaluation of vehicles or vehicle component, in particular drive chain components, or vehicle characteristics, in particular drive chain characteristics; computer programs, software and control programs for the automated delineation of test runs for the behavior of drive chain and/or motor behavior; computer programs, software and control programs for the for retracing of reproducible test runs of the test track or real tracks on the roller dynamometer; computer programs, software and control programs for the management of the operational procedure in a test facility, namely, order processing of test orders, in particular the management of the sequences of operation, management of test and measuring equipment, scheduling of test orders, test beds, measuring instruments and personnel; computer programs, software and control programs for the management, assessment and analysis of test data, in particular for the operation of web shops for spare parts; software for calibration, for simulation and analysis of safety-related systems and control apparatus; diagnostic and monitoring apparatus and instruments for vehicle batteries; diagnostic and monitoring apparatus and instruments for externally and internally driven internal combustion engines; sensors, measuring probes and apparatus for measuring, probing and monitoring the concentration of electrolytes; sensors, measuring probes and apparatus for measuring, probing and monitoring the hydrogen ion concentration; sensors, measuring probes and apparatus for measuring, probing and monitoring the carbon dioxide partial pressure; sensors, measuring probes and apparatus for measuring, probing and monitoring the oxygen partial pressure; fiber optical sensors and instruments for simultaneous measurement of various parameters, namely, oxygen partial pressure, carbon dioxide partial pressure, hydrogen ion concentration, concentration of electrolytes; electrochemical electrodes; micro electrodes; micro-optical and micro-electrochemical sensors with evaluation electronics; microwave interferometers; microwave sensors; optical sensors; reference electrodes; capillary electrodes; electrode testing devices; calibrating apparatus and instruments for sensors and measuring devices; devices for measuring the composition of exhaust; devices for measuring the pressure vibrations in liquids; devices for measuring the structure-borne noise and airborne noise; measuring and evaluation apparatus and instruments for the evaluation and analysis of drivability of vehicles; measuring and evaluation apparatus and instruments for the thermo-dynamical evaluation of combustion engines; measuring apparatus and instruments for determination of the resonance behavior of piezoelectric pressure sensors; piezoelectric resonators; piezoelectric and electro-acoustic components for use in test stands and vehicles, namely, electroacoustic transducers and piezoelectric switches; electro-optical measuring apparatus and instruments, velocity measuring apparatus and instruments, torsional vibration measuring apparatus and instruments, laser-optical instruments for studying flow phenomena in liquids and gases, acceleration sensors, pressure sensors, flow rate sensors, flow rate regulators, electric charge amplifiers, electronic liquid level measuring devices, velocity regulators, high-pressure sensors, cadence calculators, capacitive distance measuring apparatus and instruments for top dead center of piston engines, capacitive and inductive measuring electrical transducers, force encoder, light barriers in the nature of light gates for identifying movement, position encoder, angle marker generators being laser-beam emitting device which projects angles, densitometers, temperature measuring devices; testing machines in the nature of test beds and test benches for monitoring the operating state of internal combustion engines; partially and completely automatic engine test stands for monitoring the operating state of internal combustion engines; power brakes for test stands being force measurement gauges and equipment; monitoring apparatus and instruments for the operating state of internal combustion engines; monitoring apparatus and instruments for the controlling of combustion engines; instruments and devices for determining the concentration of a material contained in a substance; static and dynamic calibration facilities for high-pressure sensors; precision measuring devices for determining internal diameters on pipes; power electronics, namely, apparatus for converting electricity for electric motors, in particular, inverters, rectifiers, alternating current converters, and direct current converters