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Method for operating a hybrid vehicle

A hybrid vehicle and driven shaft technology, which is applied to the arrangement of multiple different prime movers of hybrid vehicles, general power units, and motor vehicles, etc., can solve the problems of insufficient internal combustion engine and high rotational speed.

Inactive Publication Date: 2017-08-29
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this prior art is the use of a generator to tow the internal combustion engine, which is not powerful enough for the internal combustion engine to produce higher speeds

Method used

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Examples

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Embodiment Construction

[0020] The invention relates to a method for operating a hybrid vehicle, in particular a PHEV vehicle (Plug-in Hybrid Electric Vehicle, defined above). In particular, it relates to a method for operating a hybrid vehicle after it has been parked for at least several minutes. A hybrid vehicle includes at least one electric machine and an internal combustion engine with an oil circulation lubrication system. The electric machine and the combustion engine can operate independently of each other, and the driven shaft of the electric machine and the driven shaft of the combustion engine can be interconnected via clutches and / or transmissions to separately or jointly drive the hybrid vehicle.

[0021] A method for operating a hybrid vehicle after parking includes the following method steps:

[0022] - starting the electric motor and starting the hybrid vehicle by means of a purely electric drive;

[0023] - connect the driven shafts during electric drive and drag the internal comb...

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Abstract

Method for operating a hybrid vehicle after a stationary state of the hybrid vehicle with an electric machine and an internal combustion engine with a circulating oil lubrication system, wherein the electric machine and the internal combustion engine can be operated independently of one another and their output shafts can be operatively connected to one another via a clutch and / or a transmission for a separate or common drive, comprising the following method steps: Starting the electric machine and starting the hybrid vehicle with pure electric drive, Connecting the drive shafts during the electric drive and towing the internal combustion engine without inputting fuel until a defined oil pressure is built up in the circulating oil lubrication system, Uncoupling the output shafts, Continuing to operate the hybrid vehicle with pure electric drive until the internal combustion engine is started. By means of the method according to the invention, all the components of the internal combustion engine are wetted with oil at the start and the service life of the internal combustion engine is significantly increased.

Description

technical field [0001] The invention relates to a method for operating a hybrid vehicle having the features of the preamble of claim 1 . Background technique [0002] With regard to the technical environment see, for example, German lay-open document DE 199 41 705 A1. This document discloses a drive train, in particular for a motor vehicle, comprising a drive unit, such as an internal combustion engine, with a drive shaft and at least one electric machine operatively connected to the drive shaft, said electric machine serving at least as an electric motor and generators. The drive train is characterized in that the operative connection between the electric machine and the drive shaft comprises at least two automatically assumed transmission stages depending on the operating mode of the electric machine which is at least divided into a starting phase and an operating phase. [0003] A disadvantage of this known prior art is that immediately after starting the motor vehicle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/02B60K6/48B60W10/06B60W10/08B60W10/30B60W20/40B60W30/192B60W30/18F02N11/00
CPCB60K6/48B60W10/02B60W10/06B60W10/08B60W10/30B60W20/40B60W30/18027B60W30/192F02N11/00B60W20/00B60K6/387F02N5/00B60K2006/268B60Y2200/92Y10S903/93Y02T10/62B60K2006/4808
Inventor C·兰德尔
Owner BAYERISCHE MOTOREN WERKE AG
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