Power supply circuit for motor vehicles
AssigneeRobert Bosch GmbH
InventorsHelmut Harer, Gerhard Henneberger, Jd van Wyk
Life of this patent
Estimating the term…
Abstract
A novel vehicle power supply system is suggested which receives its voltage supply from a starter/generator which can be used as a generator in normal operation and as a starter when starting, wherein the starter/generator is connected with a 24 volt ring mains as well as with a 24 volt battery via a pulse inverter and a 300 volt DC intermediate circuit and a bidirectional converter. Additional consumers can be supplied with higher voltages than 24 volts and electric control devices can be supplied with voltage, possible via additional converters, from the bidirectional push-pull converter and the 300 volt DC intermediate network. In addition, this vehicle power supply system contains a plug receptacle with a 220 volt 50 Hz voltage.
Claims9
A motor vehicle power supply circuit with a plurality of power supply components, comprising a motor vehicle power supply voltage including a battery;
- a starter/generator;
- a DC voltage intermediate circuit having an increased voltage relative to the motor vehicle power supply voltage;
- a bidirectional converter, said battery being connected with said starter/generator through said DC voltage intermediate circuit and said bidirectional converter;
- a number of consumers;
- mains connected with said starter/generator through said bidirectional converter and also connected with said consumers;
- and a control device connected with said converter so that said consumers are subjected to different voltages via said control device, said consumers being located between said battery and mains.
Dependencies are inferred from the claim text.