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System and method for diagnosing compression brake system

A compression braking and engine technology, applied in electrical control, combustion engine, engine control, etc.

Pending Publication Date: 2021-12-03
CUMMINS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This way, the expansion stroke is driven by much less compressed air than during normal operation, creating negative power

Method used

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  • System and method for diagnosing compression brake system
  • System and method for diagnosing compression brake system
  • System and method for diagnosing compression brake system

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Embodiment Construction

[0019] The following is a more detailed description of various concepts related to methods, apparatus, and systems for diagnosing the function of an engine's compression braking system and implementations thereof. Before turning to the figures, which illustrate certain example embodiments in detail, it should be understood that the disclosure is not limited to the details or methodology set forth in the description or shown in the figures. It is also to be understood that the terminology used herein is for the purpose of description only and should not be regarded as limiting.

[0020] Referring generally to the drawings, various embodiments disclosed herein relate to systems, apparatus, and methods for diagnosing a compression braking system of an engine system. Compression braking is an important feature in engines because utilizing compression braking reduces the maintenance costs associated with servicing service braking systems. However, current systems for diagnosing co...

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Abstract

A method for diagnosing a compression brake system of an engine is provided. The method includes determining a value of a parameter associated with operation of a compression brake system of an engine; retrieving a reference value of the parameter associated with the compression brake system of the engine operating as intended, comparing the value of the parameter with the reference value of the parameter; retrieving a diagnostic threshold indicative of a healthy compression braking system; and in response to determining that a result of the comparison does not match the diagnostic threshold, providing an alert.

Description

[0001] Cross References to Other Applications [0002] This application claims priority from Indian Patent Application No. 202041022134, entitled "System and Method for Diagnosing Compression Brake Systems", filed on May 27, 2020, the entire contents of which are incorporated herein by reference for all Purpose. technical field [0003] The present disclosure relates to systems and methods for diagnosing compression braking systems. Background technique [0004] Internal combustion engines can be equipped with a compression braking system, which helps slow the vehicle, and which can be used with or without an external braking system. In operation, the compression braking system varies the timing of engine valves during operation of the internal combustion engine. For example, during the compression stroke, the exhaust valve opens instead of staying closed, releasing much of the compressed air that would otherwise be used to output power from the engine. In this way, the ...

Claims

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Application Information

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IPC IPC(8): F02D41/22
CPCF02D41/22F02D2041/228Y02T10/40
Inventor C·内内S·E·罗德里格斯
Owner CUMMINS INC
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