Systems and methods for service regeneration of a particulate filter
AssigneeGM Global Technology Operations LLC
InventorsJ. Michael Gwidt, Matthew Pruski
Life of this patent
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Abstract
A system comprises an engine, a torque converter connected to the engine, a transmission connected to the torque converter via an input shaft, a particulate filter connected to the engine, an engine control module connected to the engine, the transmission, and the particulate filter, the engine control module being configured to perform service regeneration operations to lock the input shaft to the transmission and elevate the engine speed to retard the spark in the engine and increase the temperature in the particulate filter.
Claims20
A system for a vehicle comprising:
- an engine;
- a torque converter connected to the engine;
- a transmission connected to the torque converter via an input shaft;
- a particulate filter connected to the engine;
- an engine control module connected to the engine, the transmission, and the particulate filter, the engine control module being configured to perform service regeneration operations comprising:
- determining whether the particulate filter is above a predetermined service regeneration limit;
- determining whether the transmission is in park or neutral;
- and
- if the particulate filter is above a predetermined service regeneration limit and the transmission is in park or neutral, performing service regeneration operations including locking the input shaft to the transmission and elevating engine speed to retard a spark in the engine and increase a temperature in the particulate filter.
A system comprising:
- an engine;
- a torque converter connected to the engine;
- a transmission connected to the torque converter via an input shaft;
- a particulate filter connected to the engine;
- and
- an engine control module connected to the engine, the transmission, and the particulate filter, the engine control module being configured to perform service regeneration operations to lock the input shaft to the transmission and elevate engine speed to retard a spark in the engine and increase a temperature in the particulate filter.
A system comprising:
- an engine control module (ECM) configured to perform service regeneration operations comprising:
- determining whether a particulate filter is above a predetermined service regeneration limit;
- determining whether a transmission is in park or neutral;
- and
- if the particulate filter is above a predetermined service regeneration limit and the transmission is in park or neutral, locking an input shaft to the transmission and elevating speed of an engine to retard a spark in the engine and increase a temperature in the particulate filter.
Dependencies are inferred from the claim text.