Patent ID: 8612125
Filing Date: 2013-12-17
Classification: F02D,G01M,Y02T

Abstract:
1. A method for acquiring operating data of an internal combustion engine in a control unit during a diagnostic function of the control unit, and for transmitting the operating data from the control unit to a diagnostics device, comprising: determining the operating data in the control unit using at least one of sensors assigned to the internal combustion engine, variables derived from output signals of the sensors, and control unit-internal variables; configuring the diagnostic function by transmitting a specification of an operating data type and of a temporal resolution of the acquisition of the operating data from the diagnostics device to the diagnostic function; acquiring the operating data in the control unit using the diagnostic function; starting the acquisition by the diagnostics device; storing the operating data in a buffer memory in the control unit; and transmitting the operating data from the buffer memory to the diagnostics device; wherein during the acquisition of the operating data, operating parameters of the internal combustion engine are set by the diagnostics device so that the acquired operating data reflects operation of the internal combustion engine under the set parameters.