Method and test object for carrying out a test run with a test object
To subject a test object during a test run on a test bench to real environmental and/or surrounding conditions, particularly thermal conditions, it is provided that at least one temperature is measured at a measurement point as a measured variable during the test run on the test bench. At least one test object component of the test object is subdivided in a number of segments. The thermal interaction of at least one segment with the environment of the vehicle is simulated during the test run by a thermal simulation model of the simulation model. The thermal simulation model calculates the segment heat flow that is supplied to or dissipated from the at least one segment. This segment heat flow is adjusted as a function of the measured temperature at the test bench on at least one segment by means of a number of heat flow actuators.
1. A method for carrying out a test run on a test bench, wherein a test object in form of the vehicle or a component of the vehicle is physically set up and operated on the test bench, and a simulation unit having a simulation model simulates the test run, wherein at least one temperature is measured at a measurement point on the test object as a measured variable during the test run on the test bench, and at least one test object component of the test object is subdivided into a number of segments, that during the test run, the thermal interaction of at least one segment with the environment of the vehicle is simulated by means of a thermal simulation model of the simulation model, in that the thermal simulation model calculates the segment heat flow that is supplied to or dissipated from the at least one segment and that said segment heat flow is adjusted on the at least one segment as a function of the measured temperature by means of a number of heat flow actuators that subject the test object to a heat flow.
2. The method according to claim 1 , wherein the simulation model additionally includes one or a plurality of the following models: vehicle model, driver model, road or route model, wheel model, environmental model.
3. The method according to claim 1 , wherein additionally at least one further measurement variable of the test object is detected and processed in the simulation model.
4. The method according to claim 1 , wherein additionally at least one further measurement variable of the test object environment of the test object is detected and processed in the simulation model.
5. A test bench for carrying out a test run, wherein a test object in form of a vehicle or a component of a vehicle is physically set up on the test bench, and wherein a simulation unit having a simulation model, simulates the test run, wherein on the test bench at least one measurement unit is provided on the test object that detects a temperature on the test bench as a measured variable, that a thermal simulation model is implemented in the simulation unit that simulates, during the test run, the thermal interaction of at least one segment of a test object component of the test object with the environment of the vehicle, in that the thermal simulation model calculates the segment heat flow that is supplied to or dissipated from the at least one segment, and that at least one heat flow actuator is provided on the test bench that subjects the test object to heat flow, and, furthermore, a heat flow controller is provided that controls the heat flow of the at least one heat flow actuator to thereby adjust the segment heat flow at the at least one segment as a function of the measured temperature.
6. The test bench according to claim 5 , wherein one or a plurality of the following models are implemented in addition in the simulation model: vehicle model, driver model, road or route model, wheel model, environmental model.
7. The test bench according to claim 5 , wherein at least one further measurement unit is provided on the test bench that detects a further measured variable of the test object, which is processed by the simulation model.
8. The test bench according to claim 5 , wherein at least one further measurement unit is provided on the test bench that detects a further measured variable of the environment of the test object, which is processed by the simulation model.