Method for operating at least two inverters connected to a direct current network and motor vehicle
AssigneeAudi AG
InventorMaximilian SCHIEDERMEIER
Life of this patent
Estimating the term…
Abstract
A method includes operating at least two inverters connected to a direct current network. Each inverter includes a control unit connected to a common communication bus and in each case at least one switching element, which is controlled by the control unit of the inverter with a clock signal. The common communication bus is connected to at least one further control unit, which in each case sends a message of a message type via the communication bus at different points of times. The reception of one of the messages of the message type in the control units of the inverters triggers a synchronization of their clock signals.
Claims13
A method, comprising:
- operating at least two inverters connected to a direct current network, wherein the inverters each include a respective switching element and a respective control unit connected to a common communication bus;
- controlling, with the corresponding control unit, each inverter with a respective clock signal, wherein the common communication bus is connected to at least one further control unit;
- sending, at different times with the further control unit, a message of a message type via the communication bus;
- and
- triggering, by the reception of one of the messages of the message type in the control units of the inverters, a synchronization of the clock signals.
A motor vehicle, comprising:
- a direct current network;
- a common communication bus;
- two inverters each connected to the direct current network, wherein the inverters each include:
- a respective control unit connected to a common communication bus;
- and
- a respective switching element which can be controlled by the control unit of the corresponding inverter with a clock signal;
- and
- a further control unit connected to the common communication bus and configured to send a message via the communication bus at different times.
Dependencies are inferred from the claim text.