Integrated regeneration and engine controls
AssigneeCaterpillar Inc.
InventorsMichael Paul Withrow, Ryan Edward Graham, Timothy William Grunow, II, Arvil Duane Wilson, Andrew Alfred Knitt
Life of this patent
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Abstract
A method to integrate engine and exhaust aftertreatment control may include connecting an engine controller to an aftertreatment controller using a common data link protocol to provide a bidirectional data flow between the engine controller and the aftertreatment controller. The method may also include connecting the engine controller to one or more engine components. The method may also include connecting the aftertreatment controller to one or more aftertreatment components.
Claims23
A method to integrate engine and exhaust aftertreatment control, comprising:
- connecting an engine controller to an aftertreatment controller using a common data link protocol to provide a bidirectional data flow between the engine controller and the aftertreatment controller;
- transmitting messages between the aftertreatment controller and the engine controller via the common data link;
- determining a priority of the messages to be transmitted;
- transmitting a message having a high priority with a lower latency compared to a message with a low priority;
- connecting the engine controller to one or more engine components;
- and
- connecting the aftertreatment controller to one or more aftertreatment components.
An exhaust aftertreatment control system comprising:
- an engine controller;
- an aftertreatment controller connected to the engine controller using a common data link protocol to provide a bidirectional data flow between the engine controller and the aftertreatment controller, aftertreatment controller configured to maintain flame stability of a diesel burner;
- one or more engine components operably connected to the engine controller;
- and
- one or more aftertreatment components operably connected to the aftertreatment controller.
A machine comprising:
- a frame;
- an engine operably connected to the frame;
- an aftertreatment controller;
- an engine controller connected to the aftertreatment controller using a common data link protocol to provide bidirectional data flow between the engine controller and the aftertreatment controller, the aftertreatment controller configured to maintain flame stability of a diesel burner;
- the common data link including a priority field configured to determine a priority of messages to be transmitted and transmitting a message with a high priority with a lower latency compared to a message with a low priority;
- one or more engine components connected to the engine controller;
- and
- one or more aftertreatment components connected to the aftertreatment controller.
Dependencies are inferred from the claim text.