Method for operating ignition system for remotely startable internal combustion engine of motor vehicle, involves transmitting control signal to ignition control unit from engine control unit during ignition time interval

摘要

The method involves transmitting a control signal (Sk1) to an ignition control unit from an engine control unit (26) during an ignition time interval. The ignition control unit controls a primary current (i-prim) by controlling an electrical switch (18) depending on the control signal. Another control signal (Sk2) is transmitted to the ignition control unit from the engine control unit during a time interval lagging from the ignition time interval. The electrical switch is controlled depending on the latter control signal during the ignition time interval.