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1. (WO2017202537) MOTOR VEHICLE ON-BOARD SYSTEM HAVING AT LEAST TWO ENERGY STORES, METHOD FOR OPERATING A MOTOR VEHICLE ON-BOARD SYSTEM; AND MEANS FOR THE IMPLEMENTATION THEREOF

Pub. No.:    WO/2017/202537    International Application No.:    PCT/EP2017/058539
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Tue Apr 11 01:59:59 CEST 2017
IPC: B60L 7/10
B60L 11/18
Applicants: ROBERT BOSCH GMBH
SEG AUTOMOTIVE GERMANY GMBH
Inventors: MUELLER, Wolfgang
Title: MOTOR VEHICLE ON-BOARD SYSTEM HAVING AT LEAST TWO ENERGY STORES, METHOD FOR OPERATING A MOTOR VEHICLE ON-BOARD SYSTEM; AND MEANS FOR THE IMPLEMENTATION THEREOF
Abstract:
The invention relates to a motor vehicle on-board system (100, 200, 300, 400), comprising an electric machine (EM) connected to an active converter (10) having a positive and a negative d.c. voltage connection (Β+, B-), a first energy store (B1) having a positive and a negative voltage connection, a second energy store (B2) having a positive and a negative voltage connection, and a d.c. voltage converter (DC/DC) having a first and a second connection, wherein furthermore switching means (S1 - S4, 20) are provided, which are configured for setting a first switching state, in which the first energy store (B1) and the second energy store (B2) are connected in parallel to the d.c. voltage connections (B+, B-) of the converter (10), and a second switching state, in which the first energy store (B1) and the second energy store (B2) are connected in series to the d.c. voltage connections (Β+, B-) of the converter, wherein in the first and the second switching state the d.c. voltage converter (DC/DC) is permanently connected or can be temporarily connected between the positive voltage connection of the first energy store and the positive voltage connection of the second energy store. The invention further relates to means for the implementation of the method.