| 摘要 |
The present invention relates to a method of error detection of a microprocessor in a control unit of an automotive vehicle, wherein a control unit can send and receive data by way of a data bus, wherein the output of the microprocessor is monitored by a watchdog circuit, wherein the watchdog circuit compares the signals output by the microprocessor with predetermined signal patterns, and an error is detected when the signals output by the microprocessor are not concurrent with one of the predetermined signal patterns.Further, the present invention relates to a method of error detection of microprocessors in control units of an automotive vehicle, wherein a first control unit can exchange data with at least one further control unit by way of a data bus, wherein the data necessary for performing at least part of the controlling or regulating task of the first control unit are sent from this first control unit to the at least one further control unit by way of the data bus, so that corresponding to the controlling or regulating method in the first control unit, the data to be determined and, if necessary, output by the first control unit are reproduced by the at least one further control unit, and an error is detected when the data determined in the first control unit differ from the data determined in the at least one further control unit.Instead of the transmission by way of the data bus, sending the data necessary for performing the controlling or regulating task of the first control unit directly to the further control unit is also possible.
|
