Apparatus, system, and method for controlling multiple diesel particulate filters

An exhaust after-treatment system coupleable to an engine, comprising:

• at least a first branch communicable in exhaust receiving communication with an engine, the first branch comprising a first diesel particulate filter (DPF);
• at least a second branch communicable in exhaust receiving communication with the engine, the second branch comprising a second DPF and being in a parallel configuration with the first branch;
• and
• one or more of logic hardware and non-transitory machine-readable storage media having executable code stored thereon configured to
• synchronize the start of regeneration events on the first and second DPFs and not synchronize the termination of regeneration events on the first and second DPFs under normal operating conditions and
• synchronize the start of regeneration events on the first and second DPFs when either (i) a first amount of particulate matter on the first DPF meets a first regeneration threshold and a second amount of particulate matter on the second DPF does not meet a second regeneration threshold;
• or (ii) the first amount of particulate matter on the first DPF does not meet the first regeneration threshold and the second amount of particulate matter on the second DPF meets the second regeneration threshold.

A method for controlling regeneration events, comprising:

• estimating a first amount of particulate matter on a first diesel particulate filter (DPF) of at least two DPFs and a second amount of particulate matter on a second DPF of at least two DPFs;
• simultaneously initiating respective regeneration events on the first and second DPFs in response to the first amount of particulate matter meeting a first regeneration threshold and the second amount of particulate matter not meeting a second regeneration threshold;
• simultaneously initiating respective regeneration events on the first and second DPFs in response to the first amount of particulate matter not meeting the first regeneration threshold and the second amount of particulate matter meeting the second regeneration threshold;
• and
• terminating the regeneration event on one of the at least two DPFs independently of the termination of the regeneration event on the other of the at least two DPFs under normal operating conditions.