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Method for automatically stopping an internal combustion engine of a motor vehicle

A technology of automatic shutdown and internal combustion engine, which is applied in the direction of engine starting, machine/engine, internal combustion piston engine, etc.

Inactive Publication Date: 2013-09-25
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a stop preventing condition causes an automatic stop of the internal combustion engine to be prevented even if the customary stop conditions are met

Method used

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  • Method for automatically stopping an internal combustion engine of a motor vehicle
  • Method for automatically stopping an internal combustion engine of a motor vehicle
  • Method for automatically stopping an internal combustion engine of a motor vehicle

Examples

Experimental program
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Effect test

Embodiment Construction

[0039] figure 1 A motor vehicle 1 for carrying out the method according to the invention is shown. The motor vehicle 1 has an internal combustion engine 2 , an engine control unit 3 for controlling and regulating the internal combustion engine 2 via a control line 9 and a sensor line 8 , and a safety system 4 . The safety system 4 has a driving dynamics control device 5 and a collision avoidance control device 6 , which are interconnected for data exchange via a data bus system 7 . The safety system 4 is connected to the engine control unit 3 via a data bus system 7 . The engine control unit 3 is connected via a data bus system 7 to further control units, not shown. The engine control unit 3 has a start-stop system (not further shown), by means of which the internal combustion engine 2 is automatically stopped and started. The start-stop system of the engine control unit 3 receives safety parameters for the start-stop system function from the safety system 4 via the data bu...

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PUM

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Abstract

The invention relates to a method for automatically stopping an internal combustion engine of a motor vehicle, the method comprising: stop conditions as prerequisites for carrying out automatic stops of the internal combustion engine, and stop prevention conditions as prerequisites for preventing automatic stops of the internal combustion engine. An automatic stop of the internal combustion engine takes place when all stop conditions are met and none of the stop prevention conditions is met. According to the invention, one of the stop prevention conditions is an activated danger status (GS), wherein the danger status (GS) is activated when an acute indication (AI) exists. According to the invention, after the acute indication (AI) has ended, the danger status (GS) remains activated until a safety indication (SI) exists such that maneuverability of the motor vehicle by means of the internal combustion engine remaining switched on is maintained at least until the safety indication (SI) is detected.

Description

technical field [0001] The invention relates to a method for automatically shutting down an internal combustion engine of a motor vehicle according to the preamble of claim 1 . Background technique [0002] Modern motor vehicles are known to have so-called stop-start systems, by means of which the internal combustion engine of the motor vehicle is automatically stopped and started during the driving cycle after a manual start by the driver. In this case, an automatic shutdown usually takes place when the internal combustion engine is idling and the torque of the internal combustion engine is not required for traction or auxiliary drive of the motor vehicle. The automatic start usually takes place when a torque request is made to the internal combustion engine, either by the driver via the accelerator pedal or by an auxiliary drive, such as an air conditioner. A method for automatically stopping and / or starting an internal combustion engine by means of a start-stop system th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08
CPCF02N11/0833F02N11/0837Y02T10/40F02D45/00
Inventor W·贝尔赞
Owner DAIMLER AG
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