Method and processor unit for operating an exhaust gas burner
AssigneeRobert Bosch GmbH
InventorMichael Nau
Life of this patent
Estimating the term…
Abstract
A method (200) for operating an exhaust gas burner (120) in an exhaust section (102) of an internal combustion engine (110), comprising introducing a purging fluid comprising at least air (20) into the exhaust gas burner (120) during a purging operating phase (205), which lies outside the time of a normal operating phase (201) of the exhaust gas burner (120), and discharging a discharge mixture formed using the purging fluid from the exhaust gas burner (120), wherein the exhaust gas burner (120) is operated for the purpose of heating a component (130, 150) of the exhaust section (102) to its operating temperature during the normal operating phase (201). A processor unit (140) and a computer program for carrying out such a method (200) are furthermore proposed.
Claims11
A method (200) for operating an exhaust gas burner (120) in an exhaust section (102) of an internal combustion engine (110), the method comprising:
- introducing a purging fluid comprising at least air (20) into the exhaust gas burner (120) during a purging operating phase (205), which lies outside a time of a normal operating phase (201) of the exhaust gas burner (120), and
- discharging a discharge mixture (22) formed using the purging fluid from the exhaust gas burner (120),
- wherein the exhaust gas burner (120) is operated for a purpose of heating at least one component (130, 150) of the exhaust section (102) to its operating temperature during the normal operating phase (201),
- wherein the exhaust gas burner (120) is configured to be in fluid communication with the exhaust section (102) of the internal combustion engine (110), and
- wherein a parameter of the purging operating phase is determined (203) as a function of an operating parameter of the exhaust gas burner (120) determined during the normal operating phase (201).
A processor unit (140) which is configured to control and an exhaust gas burner (120) in an exhaust section (102) of an internal combustion engine (110), to:
- introduce a purging fluid comprising at least air (20) into the exhaust gas burner (120) during a purging operating phase (205), which lies outside a time of a normal operating phase (201) of the exhaust gas burner (120), and
- discharge a discharge mixture (22) formed using the purging fluid from the exhaust gas burner (120),
- wherein the exhaust gas burner (120) is operated for a purpose of heating at least one component (130, 150) of the exhaust section (102) to its operating temperature during the normal operating phase (201),
- wherein the exhaust gas burner (120) is configured to be in fluid communication with the exhaust section (102) of the internal combustion engine (110), and
- wherein a parameter of the purging operating phase is determined (203) as a function of an operating parameter of the exhaust gas burner (120) determined during the normal operating phase (201).
A non-transitory, computer-readable storage medium containing instructions that when executed by a computer cause the computer to control and an exhaust gas burner (120) in an exhaust section (102) of an internal combustion engine (110), to:
- introduce a purging fluid comprising at least air (20) into the exhaust gas burner (120) during a purging operating phase (205), which lies outside a time of a normal operating phase (201) of the exhaust gas burner (120), and
- discharge a discharge mixture (22) formed using the purging fluid from the exhaust gas burner (120),
- wherein the exhaust gas burner (120) is operated for a purpose of heating at least one component (130, 150) of the exhaust section (102) to its operating temperature during the normal operating phase (201),
- wherein the exhaust gas burner (120) is configured to be in fluid communication with the exhaust section (102) of the internal combustion engine (110), and
- wherein a parameter of the purging operating phase is determined (203) as a function of an operating parameter of the exhaust gas burner (120) determined during the normal operating phase (201).
Dependencies are inferred from the claim text.