Method for ensuring functional reliability in electromobility by means of digital certificates

• Main Authors: Schmutzler, Jens, Gröning, Sven, Wietfeld, Christian
• Format: Patent
• Language: English
• Published: 10.07.2018
• Subjects: CHECKING-DEVICES; COIN-FREED OR LIKE APPARATUS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; TRANSPORTING; VEHICLES IN GENERAL

The present invention relates to a method for ensuring functional reliability of components (5), which participate in a charging operation, of the electromobility technology of an actuator (4) which is formed in particular as an electric vehicle or electric charging station, in connection with the charging operation or during a test, wherein at least one of the participating components (5) comprises a module (6) for the implementation of security functions in which a first assigned certificate of a technical test station (3) concerning a means for carrying out a self-diagnosis of the component (5) and a second assigned certificate (11) of a manufacturer (2) are stored, characterized by the following steps to be carried out in the participating components (5): (1a) activating a self-diagnosis, (1b) providing a result of the self-diagnosis of the component (5) with a signature by means of the second assigned certificate (11) of the manufacturer (2), (1c) transmitting to the technical test station (3) the results of the self-diagnoses, provided with the signatures, and an assignment of the results to the actuator (4), (1d) checking the validity of the signatures and validating the results of the self-diagnoses, and (1e) decision about issuing a temporary certificate (12) on the basis of the validity of the component signatures and a result of the validation.