The world's first electronically controlled gasoline injection system in major serial automobile production, the manifold-controlled D-Jetronic from Bosch, was first presented 40 years ago in a Volkswagen 1600 LE/TLE. It was unveiled at the 1967 International Car Show in Frankfurt.

From mechanics to electronics 

In 1973, the L and K-Jetronic systems went into serial production. They used air volume measurement. Later, the
LH-Jetronic was introduced, which measured air volumes independently of temperature and pressure. An electronic control unit developed the K-Jetronic into the KE-Jetronic,
and the Mono-Jetronic central injection system into the Mono-Motronic. The new system permitted the use of an electronic gasoline injection with a lambda probe control unit even in small vehicles.

The first freely programmable control unit in the engine control system

The Motronic unit presented in 1979 was a world premiere
in several ways. It was the first unit to combine injection
and ignition and thereby improve coordination of the two processes. Motronic included the high computer performance required for the world’s first digital engine control system. Motronic was therefore a pioneer for other modern systems like the TCS Traction Control System and Load Adaptive Control System ESP®. Both systems combine with Motronic
to provide increased road safety by reducing engine torque
in dangerous situations.

A "direct route" to the future

More stringent fuel consumption and emissions requirements can only be met with a central engine management system. The control unit developed by Bosch for the Motronic system provides powerful electronics that can support ever more complex functional processes in the future. The torque-controlled structure of Motronic makes it suitable for additional functions in the field of diagnosis, convenience and emissions.

One example is the extension to create the DI- Motronic engine management system for gasoline direct injection. It is one of many Bosch innovations that will keep making driving even cleaner and more economic in the future.