Method and control unit for controlling a turbocharged hydrogen engine
AssigneeRobert Bosch GmbH
InventorsGiovanni Cornetti, Gabriele Sgroi, Holger Kauss, Horst Mueller, Moritz Hoess, Samuel Weinbrenner
Life of this patent
Estimating the term…
Abstract
A method for controlling a turbocharged hydrogen engine for burning an air-hydrogen mixture having an air-hydrogen ratio λ greater than 1. The hydrogen engine is configured to assume steady operating states and transient operating states, wherein ignition timings are more retarded in the transient operating states than in the steady operating states.
Claims9
A method for controlling a turbocharged hydrogen engine for burning an air-hydrogen mixture with an air-hydrogen ratio λ greater than 1, wherein the hydrogen engine is configured to assume steady operating states and transient operating states, the method comprising the following:
- controlling the hydrogen engine so that ignition timings are more retarded in the transient operating states than in the steady operating states,
- wherein the air-hydrogen ratio λ is set to a greater value in the steady operating states than in the transient operating states.
A control unit configured to control a turbocharged hydrogen engine for burning an air-hydrogen mixture ratio λ greater than 1, wherein the hydrogen engine is configured to assume steady operating states and transient operating states, the control unit is configured to:
- control the hydrogen engine so that ignition timings are more retarded in the transient operating states than in the steady operating states,
- wherein the air-hydrogen ratio λ is set to a greater value in the steady operating states than in the transient operating states.
A hydrogen engine, comprising:
- at least one cylinder;
- a turbocharger;
- a compressor;
- and
- a control unit configured to control the hydrogen engine for burning an air-hydrogen mixture ratio λ greater than 1, wherein the hydrogen engine is configured to assume steady operating states and transient operating states, the control unit being configured to:
- control the hydrogen engine so that ignition timings are more retarded in the transient operating states than in the steady operating states,
- wherein the air-hydrogen ratio λ is set to a greater value in the steady operating states than in the transient operating states.
Dependencies are inferred from the claim text.