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Protects the engine in automatic stop/start applications

An engine, engine temperature technology, applied in the direction of machine/engine, engine components, combustion engine, etc., can solve problems such as fuel consumption

Active Publication Date: 2021-08-31
CUMMINS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this state, fuel is consumed by the engine although the vehicle is not moving

Method used

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  • Protects the engine in automatic stop/start applications
  • Protects the engine in automatic stop/start applications
  • Protects the engine in automatic stop/start applications

Examples

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Embodiment Construction

[0012] The following is a more detailed description of various concepts related to and implemented by methods, apparatus, and systems for implementing stop / start features. The various concepts introduced above and discussed in greater detail below can be implemented in any number of ways, as the described concepts are not limited to any particular implementation. Examples of specific implementations and applications are provided primarily for illustrative purposes.

[0013] Referring generally to the drawings, embodiments disclosed herein relate to systems and methods for protecting the engine of a vehicle in automatic stop / start applications. Historically, engine cranking has been considered one of the most detrimental modes of operation for an engine. During start-up, the bearings have little or no lubrication. Additionally, during the subsequent warm-up period, the engine may experience maximum temperature transients, and certain emission control devices, such as an exhau...

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Abstract

An apparatus comprising an engine friction module in operative communication with an engine and configured to interpret engine operating data indicative of an amount of engine friction, and a stop / start module configured to communicate the engine operating data with The friction threshold is compared to a preset protection criterion and the engine is shut down for at least a period of time based on the engine friction threshold being exceeded by an amount of engine friction.

Description

technical field [0001] The present invention relates to the field of engines, and more particularly to protecting engines in automatic stop / start applications. Background technique [0002] Many vehicles are powered by an engine that burns fuel to power the vehicle. Typically, vehicle engines are kept running at idle even when the vehicle is not moving (eg, when the vehicle is stopped at a stop sign, drive-thru restaurant, etc.). In this state, fuel is consumed by the engine even though the vehicle is not moving. Some vehicles address this problem by reducing the amount of fuel consumed by the engine by employing stop / start systems that automatically shut down and restart the engine under certain operating conditions. For example, the engine can be switched off if the vehicle is left idling for an extended period of time, such as when the vehicle is stalled in a traffic jam, stalled at a train crossing, or left in a parking lot. A stop / start feature is often combined with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/00
CPCF02D41/042F02D41/06F02D41/086F02D2200/022F02D2200/1006F02N2200/023F02N11/0829Y02T10/40
Inventor M·T·布克斯J·P·奥布赖恩J·普拉萨德J·S·劳奇
Owner CUMMINS LTD
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