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System And Method For Engine Idle Stop Control

An engine stop, engine technology, applied in the direction of engine start, engine components, combustion engine, etc., to achieve the effect of net fuel

Inactive Publication Date: 2015-06-24
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during engine stop, there is also power savings as some components related to engine operation are de-energized

Method used

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  • System And Method For Engine Idle Stop Control
  • System And Method For Engine Idle Stop Control
  • System And Method For Engine Idle Stop Control

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Embodiment Construction

[0019] As required, detailed embodiments of the claimed subject matter are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary and may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ embodiments of the claimed subject matter.

[0020] Hybrid vehicles may be equipped with an automatic engine stop system. An automatic engine stop system shuts down the engine during certain phases of vehicle operation to save fuel. For example, an autostop system may shut down the engine during engine idling conditions when the engine is not required for driving or other purposes. The autostop system can then restart the...

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Abstract

A system and method for controlling engine idle stop in a hybrid vehicle balance the extra electrical load imposed on the vehicle during engine stop with the electrical energy saved to achieve net fuel savings. Predictive information is used to determine potential vehicle stops and corresponding stop durations during a time window. To achieve net fuel savings, the engine stop duration time must be long enough for the electrical energy savings to cover electrical load added to the system. If the predicted stop duration time is long enough to yield net fuel savings, engine stop may be initiated. If not, engine stop may be inhibited.

Description

technical field [0001] The present disclosure relates to vehicles having an engine auto-stop feature, controlling engine idle stop and restart activities. Background technique [0002] Hybrid vehicles may be equipped with an automatic engine stop system. An automatic engine stop system shuts down the engine during certain phases of vehicle operation to save fuel. For example, when a vehicle stops at a traffic light or encounters a traffic jam, an automatic engine stop may intervene instead of allowing the engine to idle. The engine can be restarted when the driver releases the brake pedal or actuates the accelerator pedal. The engine may also be started, for example, due to a load on the electrical system. Stop the engine when it is not needed, improving fuel economy and reducing emissions. [0003] Automatic engine stop systems also present various challenges. Engine stop and restart events cause additional electrical loads to be placed on the system. For example, add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W30/18B60W10/06B60W10/10
CPCB60W10/06B60W10/10B60W30/18018F02D17/04F02D29/02B60W2520/10B60W2540/10B60W2540/12B60W2556/50F02N11/084F02N2300/2006Y10S903/903Y02T10/40B60W20/00F02D28/00
Inventor 赵亚男马修·艾伦·博斯森基特·森加米西威兰
Owner FORD GLOBAL TECH LLC
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