Method for testing function of computer i.e. control device, for controlling functions e.g. transmission, of motor vehicle, involves selecting index based on count state of counter, where counter is provided for determining time for control

摘要

The method involves presetting a list of queries for testing computers (1, 2), where each query includes an index. The index is randomly selected for selecting the query. The query is transmitted to the computers. Response to the query is compared with a preset response. A correct function of the computers is detected when the response matches with the preset response. The index is selected based on a count state of a counter (14), where the counter is provided for determining time for control. An independent claim is also included for an arrangement comprising two computers.