PATENT CLAIM ANALYSIS

Application Number: 15751564
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["060", "286000"]

Abstract:
A diesel exhaust fluid (DEF) delivery system and method for operating same. The method includes controlling a pump to operate at an idle speed to pressurize a pressure line. The method includes controlling a backflow dosing module (BFDM) valve to open to allow an amount of the DEF to flow into a fluid storage tank through a backflow line. The method includes determining a dosing request, a first dosing actuation request for the first dosing valve and a second dosing actuation request for the second dosing valve based on the dosing request. The method includes, when a sum of the first and second dosing actuation requests is less than 100%, controlling the BFDM valve to close when either of the first and second dosing valves is open; and controlling the BFDM valve to open when the first dosing valve is closed and the second dosing valve is closed.

Claim (Index 1):
A diesel exhaust fluid (DEF) delivery system, the system comprising:\n a first dosing valve controllable to deliver DEF to a diesel exhaust system; a second dosing valve controllable to deliver DEF to the diesel exhaust system; a fluid storage tank for storing DEF; a pump, coupled to the fluid storage tank and the first and second dosing valves, and controllable to pump DEF from the storage tank through a suction line to the first and second dosing valves through a pressure line; a pressure sensor positioned to sense a system pressure of the DEF delivery system; a backflow dosing module, including a backflow dosing module valve, coupled to the fluid storage tank to controllably allow an amount of the pumped DEF to flow back into the fluid storage tank through a backflow line; and an electronic controller, communicatively coupled to the first and second dosing valves, the pump, the backflow dosing module, and the pressure sensor, and configured to\n control the pump to operate at idle speed to pressurize the pressure line; \n control the first and second dosing valves to close by default; \n control the backflow dosing module valve to open by default; \n determine a dosing request; \n determine a first dosing actuation request for the first dosing valve based on the dosing request; \n determine a second dosing actuation request for the second dosing valve based on the dosing request; and \n when a sum of the first and second dosing actuation requests is less than 100%,\n control the first and second dosing valves to open and close based on the first and second dosing valve actuation requests; \n control the backflow dosing module valve to close when either of the first and second dosing valves is open; and \n control the backflow dosing module valve to open when the first dosing valve is closed and the second dosing valve is closed.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 88.0
- Lexical Diversity: 2.49231
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15224103', '15328815', '14775126', '15629136', '14817728']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7238471389989698
- 35 USC 102 Novelty (BERT): 0.4699338066235772
- Combined Prediction Score: 0.6984558057614305
- Mean Citation Score: 188.637466
- Max Citation Score: 232.60924
- Similarity Product: 194.26183291693687

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test