Robert Boschgmbh

Lilian Kaiser

Ruediger Weiss

Karl Ott

Stefan Keller

Gerd Grass

Margit Mueller

Peter Klee

A method and a device for monitoring data and the transmission of data between at least one first control unit and one second control unit are provided. The at least two control units have a first program level, to which are allocated programs which calculate the control function, as well as a second program level including programs that monitor the functional reliability of the programs of the first program level. The first control unit is connected to at least one component which may be used to acquire data, for example, controlled variables. The data acquired by the component or further data determined with this data may be transmitted from the first control unit to the second control unit over a single connection in a secure manner, and the data and the data transmission are secured separately in the first and second program levels such that errors in the data and the data transmission may be detected.

Method and device for monitoring control units

The invention is directed to a method of starting an engine for internal combustion engines of a motor vehicle driven by gasoline direct injection with the engines being subdivided into several cylinder banks and a high pressure injection system being provided for each cylinder bank. During a first phase (A), an injection into the cylinders of a first cylinder bank in correspondence to their normal ignition sequence takes place and no injection is carried out in the cylinders of the remaining cylinder banks. In a subsequent second phase (B), injection takes place also into the cylinders of the other cylinder bank or banks.

Method for starting an internal combustion engine having several cylinder banks and being operated with gasoline direct injection

Growing community of inventors

Stuttgart, Germany

Lilian Kaiser