System and method for regenerating a particulate filter
First Claim
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1. A method for operating a rail vehicle consist including a plurality of rail vehicles, comprising:
- identifying an approaching tunnel;
determining a particulate load of a particulate filter disposed in an exhaust treatment system of an engine of each vehicle;
determining a particulate load threshold for each vehicle based on a position of the vehicle with respect to the other vehicles in the consist; and
when the particulate load of a particulate filter of a vehicle of the consist is greater than the particulate load threshold for that vehicle, initiating regeneration of its particulate filter responsive to the identification and before entering the approaching tunnel.
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Abstract
Various methods and systems are provided for a vehicle with an engine. In one example, a method includes identifying an approaching tunnel. The method further includes, responsive to a particulate load of a particulate filter, the particulate filter disposed in an exhaust treatment system of an engine of the vehicle, initiating regeneration of the particulate filter at a selected distance before the tunnel such that regeneration is performed before the vehicle enters the tunnel.
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Citations
20 Claims
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1. A method for operating a rail vehicle consist including a plurality of rail vehicles, comprising:
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identifying an approaching tunnel; determining a particulate load of a particulate filter disposed in an exhaust treatment system of an engine of each vehicle; determining a particulate load threshold for each vehicle based on a position of the vehicle with respect to the other vehicles in the consist; and when the particulate load of a particulate filter of a vehicle of the consist is greater than the particulate load threshold for that vehicle, initiating regeneration of its particulate filter responsive to the identification and before entering the approaching tunnel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for operating a first vehicle of a rail vehicle consist, comprising:
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determining a position of an approaching tunnel with respect to a position of the first vehicle; determining a length of the approaching tunnel; determining a particulate load of a particulate filter of the first vehicle; determining a particulate load threshold for the first vehicle based on the length of the approaching tunnel; and initiating regeneration of the particulate filter of the first vehicle before entering the approaching tunnel if the particulate load is greater than the threshold, wherein the regeneration is completed within a selected duration or distance before the first vehicle enters the tunnel based on the position of the approaching tunnel and vehicle speed. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system, comprising:
- a control module configured for operable deployment on a first rail vehicle of a rail vehicle consist including the first rail vehicle and plural second rail vehicles, the control module configured to;
determine positions of the first rail vehicle and the plural second rail vehicles with respect to a position of an approaching tunnel and with respect to each other; determine current particulate loads of engine exhaust particulate filters of each of the first rail vehicle and the plural second rail vehicles; for each of the first rail vehicle and the plural second rail vehicles, determine an estimated regeneration time based on the current particulate load of the vehicle, the position of the vehicle with respect to the position of the approaching tunnel and with respect to the other vehicles, and operating conditions expected along a route leading to an entrance of the approaching tunnel; and for each of the first rail vehicle and the plural second rail vehicles, initiate regeneration of the particulate filter based on a comparison of the estimated regeneration time to an estimated time before the vehicle will enter the approaching tunnel. - View Dependent Claims (19)
- a control module configured for operable deployment on a first rail vehicle of a rail vehicle consist including the first rail vehicle and plural second rail vehicles, the control module configured to;
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20. A system, comprising:
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a control module configured for operable deployment on a vehicle, the control module configured to; receive data relating to at least one of a position of the vehicle or a tunnel that the vehicle is approaching; determine if a particulate filter of the vehicle can be regenerated to a desired degree within a selected time before entering the tunnel; and if the particulate filter of the vehicle can be regenerated to the desired degree within the selected time before entering the tunnel, initiate regeneration of the particulate filter of the vehicle as late as possible before the vehicle enters the tunnel.
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Specification