Robert Boschgmbh

Thomas Pawlak

Tim Skowronek

Wolfgang Sinz

Konstantin Lindenthal

Juergen Raedler

Florian Herzog

Joerg Eichhorn

Alwin Stegmaier

Axel Keib

Alfred Glatz

Felix Bittner

Gennaro Romano

Kazim Kahraman

Sebastian Hoffmann

A method for operating an ignition system for an internal combustion engine, including a first voltage generator and a bypass, is described. The bypass may include, for example, a boost converter for maintaining a spark generated with the aid of the first voltage generator. A speed of an internal combustion engine used with the ignition system is ascertained and the operating mode of the bypass is modified in response to the speed change.

Ignition system and method for operating an ignition system for an internal combustion engine

A method for checking electrodes of a spark gap of an ignition system for a combustion chamber of an internal combustion engine with an externally provided ignition includes generating a spark at the spark gap in an operating state without ignition of an ignitable mixture in the combustion chamber; ascertaining a parameter or characteristic function representing the spark current, the spark voltage, and/or the spark duration; comparing the parameter or the characteristic function to a reference; adapting an energy for a voltage buildup for a further spark generation for the mixture ignition and/or for maintaining an ignition spark for the mixture ignition, in particular for a future ignition process, as a function of a difference between the parameter or the characteristic function and the reference.

Ignition system and method for checking electrodes of a spark plug of an internal combustion engine

An ignition system and a method for controlling an ignition system for a spark-ignited internal combustion engine are described, having a primary voltage generator for generating an ignition spark and a boost converter for maintaining an ignition spark. The method includes sending a signal from an engine control unit to the ignition system, in order to determine a predetermined ignition timing for triggering an ignition spark, sending an additional signal from the engine control unit to the ignition system, in order to determine a predetermined additional ignition timing for triggering an additional ignition spark, and sending a control signal for influencing the operating mode of the boost converter from the engine control unit to the ignition system between the signal and the additional signal.

Ignition system and method for controlling an ignition system for a spark-ignited internal combustion engine

An ignition system and a method for suppressing an ignition spark discharge at a spark gap at an unsuitable time are provided. The method includes a recognition of a spark breakaway and/or a failed ignition and, in response thereto, by producing a conductive path via an ignition spark at the spark gap at a suitable time.

Method for operating an ignition system and a corresponding ignition system

A method is described for operating an ignition system for an internal combustion engine, including a primary voltage generator and a bypass, in particular, a boost converter for maintaining a spark generated with the aid of the primary voltage generator, the method includes an ascertainment of a modified energy requirement for an ignition spark, which is to be maintained with the aid of the bypass and a modification of the working mode of the bypass in response thereto.

Ignition system and method for operating an ignition system

An ignition system and a method for operating an ignition system for an internal combustion engine are provided, including a primary voltage generator and a boost converter for generating an ignition spark. An ascertainment of a voltage requirement for the ignition spark is followed by a modification of a switch-on time of the boost converter relative to a switch-off time of the primary voltage generator.

An ignition system includes: a step-up transformer having a primary side and a secondary side; an electric energy source which is able to be connected to the primary side; a spark gap, which is designed to carry a current transferred to the secondary side by the step-up transformer. The step-up transformer has a bypass for transferring electric energy from the electric energy source to the secondary side. The bypass is designed to support a decaying electrical signal in the secondary coil of the high-voltage generator as of a predefined time, or as of a predefined intensity of the current being reached.

Ignition system for an internal combustion engine

An ignition system includes: a step-up transformer having a primary side and a secondary side; an electrical energy source configured to be selectably connected to the primary side; a spark gap which is configured to guide a current transferred by the step-up transformer to the secondary side. The step-up transformer has a bypass for transferring electrical energy from the electrical energy source to the secondary side. The ignition system is configured to couple electrical energy in series or in parallel to the secondary side of the high voltage generator for the purpose of maintaining an ignition spark as an electrical voltage in the form of a controlled pulse sequence, e.g., within the kilo-hertz range.

An electrical connection configuration, e.g., for an ignition coil, includes: an enameled wire sheathed in insulating enamel, and a contact element for the electrical contacting of the enameled wire, the contact element having a contact region for the electrical contacting of the enameled wire. The contact region has at least one sharp edge, and the enameled wire is routed along the sharp edge, such that a region of the enameled wire stripped of the enamel is provided, which rests against the contact region of the contact element for the electrical contacting.

Electrical connection configuration for an ignition coil

A method for producing a coil, in particular an ignition coil for a motor vehicle, in which a primary winding is wound onto a winding mandrel. Then the winding mandrel is introduced into a housing of the coil and the winding mandrel then is removed from the housing, the primary winding remaining inside the housing. Finally, additional components of the coil, in particular a secondary coil shell onto which a secondary winding has been wound, are introduced into the housing, so that the secondary winding is concentrically disposed within the primary winding while dispensing with a separate primary coil shell. The method allows a design of the coil that is more compact in diameter.

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Immenstadt, Germany

Thomas Pawlak