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Method for operating an automatic start/stop system of a motor vehicle

A technology for automatic starting and motor vehicles, which is applied in the direction of motor starting for engines, vehicle components, starting of engines, etc., and can solve problems such as consumption

Active Publication Date: 2019-03-05
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the second case, which is called free-rolling or rolling start / stop mode, the electric load of the motor vehicle must be supplied with current by the battery, and the recharging of the battery consumes additional fuel during each operation of the internal combustion engine

Method used

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  • Method for operating an automatic start/stop system of a motor vehicle

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Embodiment Construction

[0015] Exemplary embodiments are described below with reference to the drawings.

[0016] A motor vehicle (not shown) having an internal combustion engine and an automatic clutch, especially an electronically or electronically activated clutch, has an automatic start / stop system that disengages the clutch and Allows the internal combustion engine to run in idle mode or shuts it down completely.

[0017] A motor vehicle contains an electronic engine control unit and one or more on-board computers for various functions, including an automatic start / stop system, and a plurality of sensors, including sensors for sensing the current steering wheel angle sensors and sensors for sensing current brake pedal travel or brake line pressure.

[0018] Furthermore, a motor vehicle may have a driver assistance system or a collision avoidance system which evaluates the potential danger of the current driving situation on the basis of signals from other sensors, for example distance sensors, ...

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Abstract

The invention relates to a method for operating an automatic start / stop system of a motor vehicle having an internal combustion engine and an automatic clutch, wherein the automatic start / stop system automatically opens the clutch in response to a propulsion request, wherein automatic opening of the clutch is inhibited in certain driving situations (step 3). According to the invention, a driving situation that prohibits automatic opening of the clutch is an automatically detected dangerous situation (steps 1, 2).

Description

technical field [0001] The invention relates to a method and a device for operating an automatic start / stop system of a motor vehicle having an internal combustion engine and an automatic clutch. Background technique [0002] The term "micro hybrid vehicle" is used to refer to a vehicle having an internal combustion engine, a more conventionally sized electric starter motor, specifically known as a crank starter motor (ISG, Integrated Starter Generator), and a smaller sized Motor vehicles with brake energy recovery systems for charging the starter battery. If propulsion is not required, the internal combustion engine can be stopped automatically by an automatic start / stop system, ie switched off, for example by coasting to a stop, and can be started again if the driver requests power again. Alternatively, the internal combustion engine can be easily decoupled from the rest of the driveline and operated in idle mode. [0003] The automatic start / stop system stops the intern...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D45/00B60W30/09
CPCF02N11/0818F02N2200/0805F02N2200/0808F02N2200/102B60W10/02B60W10/06B60W30/18072B60W2030/1809B60W2510/182B60W2540/12B60W2540/18F02N11/08Y02T10/40
Inventor 乌尔斯·克里森马库斯·吉斯吉尔伯托·布尔焦雷纳·布许托马斯·兰堡乌韦·古森
Owner FORD GLOBAL TECH LLC
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