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公开(公告)号：US20180313302A1
公开(公告)日：2018-11-01
申请号：US15581040
申请日：2017-04-28
Applicant: Progress Rail Locomotive Inc.
Abstract: A control system for an exhaust gas recirculation system for an engine is provided. The control system includes an exhaust gas recirculation (EGR) cooler having a coolant flowing therethrough. The control system includes an externally controlled coolant set-point circuit associated with the EGR cooler. The control system also includes a controller communicably coupled to the externally controlled coolant set-point circuit. The controller is configured to receive a first signal indicative of a readiness of the engine to load. The controller is configured to receive a second signal indicative of a temperature of the coolant. The controller is configured to receive a third signal indicative of a first temperature zone associated with the engine. Further, the controller is configured to modulate a set-point temperature of the coolant over a range of temperatures based on the received signals and a temperature gradient of the coolant.
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公开(公告)号：US10422278B2
公开(公告)日：2019-09-24
申请号：US15706153
申请日：2017-09-15
Applicant: Progress Rail Locomotive Inc.
Abstract: A cleaning device for a pressure sensor associated with an engine system includes a one-way valve having an inlet side and an outlet side. The outlet side is in selective fluid communication with an inlet of the pressure sensor. The cleaning device also includes a compressed air source in selective fluid communication with the one-way valve. The cleaning device further includes a control module communicably coupled to each of the pressure sensor, the one-way valve, and the compressed air source. The control module is configured to control an operation of the one-way valve and the compressed air source to impart at least one of a long burst of modulated air and a short burst of modulated air on the inlet of the pressure sensor.
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公开(公告)号：US20190085764A1
公开(公告)日：2019-03-21
申请号：US15706153
申请日：2017-09-15
Applicant: Progress Rail Locomotive Inc.
Abstract: A cleaning device for a pressure sensor associated with an engine system includes a one-way valve having an inlet side and an outlet side. The outlet side is in selective fluid communication with an inlet of the pressure sensor. The cleaning device also includes a compressed air source in selective fluid communication with the one-way valve. The cleaning device further includes a control module communicably coupled to each of the pressure sensor, the one-way valve, and the compressed air source. The control module is configured to control an operation of the one-way valve and the compressed air source to impart at least one of a long burst of modulated air and a short burst of modulated air on the inlet of the pressure sensor.
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