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Method for operating motor vehicle with hybrid drive

A technology for hybrid power systems and automobiles, which is applied to the layout of multiple different prime movers of hybrid vehicles and general-purpose power plants, and motor vehicles, and can solve the problems of non-production and inefficient work, and achieve low energy loss and low energy consumption. Avoid energy loss, small carbon dioxide emission effect

Active Publication Date: 2014-01-15
AUDI AG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, problems arise when the ambient temperature is low: many parts of the car do not work efficiently when cold
[0009] However, the problem arises with hybrid vehicles that the internal combustion engine does not produce waste heat that can be used to heat other components when running purely electric

Method used

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  • Method for operating motor vehicle with hybrid drive
  • Method for operating motor vehicle with hybrid drive

Examples

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Embodiment Construction

[0026] A powertrain for a hybrid vehicle, generally indicated at 10 , includes an internal combustion engine 12 and a drive electric machine 14 . The internal combustion engine 12 can be coupled via a first clutch 16 to a drive motor 14 , which can itself be coupled to an automatic transmission 20 via a second clutch 18 . Drive energy is transmitted from the automatic transmission to the likewise not shown vehicle wheels via a further drive train, not shown in the drawing.

[0027] A high-voltage battery 22 is used to supply current to the drive motor 14 , which supplies the high-voltage on-board electrical system 24 of the motor vehicle. The voltage of the high-voltage vehicle electrical system 24 is converted by the inverter 26 into the three-phase voltage necessary for the operation of the drive motor 24 . DC transformer 28 also connects high-voltage vehicle electrical system 24 to low-voltage vehicle electrical system 30 , which also has its own 12V battery 32 .

[0028]...

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Abstract

The invention relates to a method for operating a motor vehicle with a hybrid drive (10), in which at least one operating medium of the motor vehicle is heated to a predetermined desired temperature by means of a dielectric heating device (36, 38). By this means, immediately following a cold start of the motor vehicle, components through which the operating medium flows can be brought particularly rapidly to the optimum operating temperature thereof such that a particularly energy-saving operation of the motor vehicle is possible.

Description

technical field [0001] The invention relates to a method for operating a motor vehicle with a hybrid system. Background technique [0002] A car with a hybrid system has both an internal combustion engine and a drive electric motor. In order to use as little fuel as possible, it is desirable here as often as possible to use the drive motor alone for the drive or to provide at least a substantial part of the drive power via the drive motor. [0003] However, problems arise when the ambient temperature is low: many parts of the car do not work efficiently when cold. This is especially true for high-voltage batteries that supply drive motors, where the maximum output power that can be delivered in the cold state is significantly lower than in the hot state. Drive components that must be lubricated can only be operated even in the cold state with a significant loss of energy. This is especially true in transmissions when temperatures are low due to the increased viscosity of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00H05B6/80B60H1/03B60H1/00F02N19/10
CPCB60K6/48B60W30/194B60W2710/1072B60W2710/246F02N19/10H05B6/802Y02T10/62Y02T10/88Y10S903/903H01M10/615Y02E60/10B60W20/00F01M5/02F16H57/0413
Inventor J·帕帕尤斯基
Owner AUDI AG
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