An electronic control system for an internal combustion engine, equipped with at least two central processing units for executing control of different operations. Counters are connected to respective ones of the central processing units for individually detecting engine speed, each of which counters...http://www.google.es/patents/US4797828?utm_source=gb-gplus-sharePatente US4797828 - Electronic control system for internal combustion engines
Electronic control system for internal combustion engines
