Method and device for automatically shutting off an internal combustion engine

Patent metadata

Field	Value
Publication number	US-9410524-B2
Application number	US-201514708670-A
Country	US
Kind code	B2
Filing date	May 11, 2015
Priority date	May 12, 2014
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A method is provided for automatically shutting off an internal combustion engine in a motor vehicle by way of a start-stop device, which automatically shuts off the internal combustion engine as soon as the predefined operating conditions are met. An automatic shut-off of the internal combustion engine is prevented when an actuation of a garage door opener for the electric displacement of the garage door is detected. A correspondingly designed start-stop device is provided for automatically shutting off the internal combustion engine, wherein a control unit is designed such that signals of the garage door opener and/or of a detection unit, which detects an electric opening of the garage door, can be received and the automatic shut-off of the internal combustion engine is permitted or prevented depending on the signals.

First claim

What is claimed is:

1. A method for automatically shutting off an internal combustion engine in a motor vehicle by way of a start-stop device, the method comprising the acts of:
determining whether predefined operating conditions are met, which predefined operating conditions normally correspond to an automatic shut-off of the internal combustion engine via the start-stop device; and
preventing the automatic shut-off of the internal combustion engine due to the predefined operating conditions being met when an actuation of a garage door opener for electric displacement of a garage door is detected.

2. The method according to claim 1 , wherein the garage door opener is actuated manually via actuation of an operating element.

3. The method according to claim 1 , wherein the garage door opener is actuated automatically based on a detected presence of a predefined situation.

4. The method according to claim 1 , further comprising the act of:
preventing the automatic shut-off of the internal combustion engine only until a shut-off prevention termination condition occurs.

5. The method according to claim 1 , further comprising the act of:
preventing the automatic shut-off of the internal combustion engine only for a predefined duration.

6. The method according to claim 1 , further comprising the act of:
preventing the automatic shut-off of the internal combustion engine only while the vehicle speed is lower than a predefined limit value.

7. A start-stop device for automatically shutting-off an internal combustion engine in a motor vehicle, comprising:
a control unit configured to receive predefined reception signals, so as to check whether predefined operating conditions of the motor vehicle for initiating an automatic shut-off of the internal combustion engine are met, and further configured to emit actuating signals to the internal combustion engine to automatically shut-off the internal combustion engine when all of the predefined operating conditions are met, wherein
the control unit is further configured such that signals of a garage door opener and/or of a detection unit that detects an electric opening of a garage door are receivable, and the automatic shut-off of the internal combustion engine is permitted or prevented depending on the signals of the garage door opener and/or the detection unit.

8. The start-stop device according to claim 7 , wherein the garage door opener and/or the detection unit are integrated into the motor vehicle and the signals are transmitted via a signal line to the control unit.

9. The start-stop device according to claim 7 , wherein the garage door opener and/or the detection unit are not rigidly connected to the motor vehicle and the signals are transmitted via a wireless signal connection to the control unit.

10. The start-stop device according to claim 7 , wherein the control unit is configured to not allow the automatic shut-off of the internal combustion engine when an actuation of the garage door opener for the electric opener of the garage door is detected.

11. The start-stop device according to claim 7 , wherein the control unit is configured to not allow the automatic shut-off of the internal combustion engine for a predefined duration upon detecting the actuation of the garage door opener for the electric opening of the garage door.

12. The start-stop device according to claim 7 , wherein the control unit is configured to not allow the automatic shut-off of the internal combustion engine upon detecting the actuation of the garage door opener while a vehicle speed is below a predefined limit value.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Schweiger Benno
• Eckel Isabella
• Makeschin Lorenz

Classifications

• F02N11/0818

  Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode · CPC title

• F02N11/0837 Primary

  Environmental conditions thereof, e.g. traffic, weather or road conditions · CPC title

• F02N2200/12

  said parameters being related to the vehicle exterior · CPC title

• F02N2200/0801

  Vehicle speed · CPC title

• Y02T10/40

  Engine management systems · CPC title