SYSTEM FOR DISABLING DIESEL PARTICULATE FILTER REGENERATION DURING ELECTRIC OPERATION

• US 20110197568A1
• Filed: 02/12/2010
• Published: 08/18/2011
• Est. Priority Date: 02/12/2010
• Status: Active Grant

• Current Assignee: International Engine Intellectual Property Company, LLC (Volkswagen AG)
• Original Assignee: International Engine Intellectual Property Company, LLC (Volkswagen AG)
• Inventors: Majewski, Michael A., Wieshuber, Paul A., Beaucaire, James T., Rodgers, David V., Berke, Paul L.
• Granted Patent: US 8,635,856 B2
• Time in Patent Office: Days
• US Class Current: 60/286
• CPC Class Codes: B60W 2530/12 Catalyst or filter state
• CPC Class Codes: B60W 30/1888 Control of power take off [PTO]
• CPC Class Codes: B60Y 2300/476 Regeneration of particle filters
• CPC Class Codes: F01N 2590/11 for hybrid vehicles
• CPC Class Codes: F01N 2900/104 Battery status
• CPC Class Codes: F01N 3/023 using means for regenerating the filters, e.g. by burning trapped particles by electrically controlling the supply of combustible mixture or its constituents only F02D41/0235
• CPC Class Codes: F01N 3/0253 adding fuel to exhaust gases
• CPC Class Codes: F01N 9/002 of filter regeneration, e.g. detection of clogging
• CPC Class Codes: F02D 2200/503 Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
• CPC Class Codes: F02D 41/029 the exhaust gas treating apparatus being a particulate filter
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A regeneration disable control system (22) of a vehicle having a power take off device (10) that is run off a motor (12) which is powered by at least one battery (14), and an engine (16) for recharging the at least one battery and for regenerating a diesel particulate filter (20), includes a hybrid controller (18). The hybrid controller (18) sends a signal to an engine controller (21) to indicate whether hybrid-PTO mode is enabled. If the hybrid-PTO mode is enabled, the engine controller (21) determines whether regeneration of the diesel particulate filter (20) is required. If regeneration is required, the engine controller (21) sends a signal to a regeneration inhibitor (30) to disable the engine (16) from initiating a regeneration event.

Claims

1. A regeneration disable control system of a vehicle having a power take off device that is run off a motor which is powered by at least one battery, and an engine for recharging the at least one battery and for regenerating a diesel particulate filter, the regeneration disable control system comprising:

a hybrid controller for sending a signal to an engine controller to indicate whether hybrid-PTO mode is enabled;

wherein if hybrid-PTO mode is enabled, the engine controller determines whether regeneration of the diesel particulate filter is required; and

wherein if regeneration is required, the engine controller sends a signal to a regeneration inhibitor to disable the engine from initiating a regeneration event.

2. The regeneration disable control system of claim 1 wherein if the hybrid controller does not send the signal to the engine controller indicating that hybrid-PTO mode is enabled, the control system loops to receive the signal from the hybrid controller.

3. The regeneration disable control system of claim 1 wherein if the engine controller determines that regeneration is not required, the control system loops to receive the signal from the hybrid controller.

4. The regeneration disable control system of claim 1 wherein the engine is disabled from initiating a regeneration event at the diesel particulate filter while the battery is being charged.

5. The regeneration disable control system of claim 1 further comprising a regeneration controller, wherein the regeneration controller disables the engine from initiating a post-injection which causes regeneration at the diesel particulate filter.

6. The regeneration disable control system of claim 1 wherein the regeneration inhibitor is located at the engine controller.

7. The regeneration disable control system of claim 1 wherein a control logic for the regeneration disable control system is located at the engine controller.