Method for ensuring secure and reliable operation of an electronic controller for use with automatic multi-speed or continuous variable transmission gear-boxes for goods vehicles

摘要

The method in which the program memory (3) of a central controller unit (1) is periodically backed up, at pre-determined time intervals, to a remote backup memory (5). In addition it is possible to replace missing data from either memory chip with the correct data from the other memory chip. An Independent claim is made for a device for ensuring the secure operation of an electronic motor or gear controller.