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Method for operating a hybrid drive device and corresponding hybrid drive device

A technology of hybrid drive and operation mode, which is applied to the arrangement of multiple different prime movers of general power units, power units, hybrid vehicles, etc., and can solve problems such as damage to the coils or other components of the motor.

Active Publication Date: 2017-08-18
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Damage to the coils or other components of the motor may occur especially at high temperatures

Method used

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  • Method for operating a hybrid drive device and corresponding hybrid drive device

Examples

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Embodiment Construction

[0028] The drawing shows a schematic diagram of a drive train 1 of a motor vehicle, not shown in detail, with a hybrid drive 2 . The hybrid drive 2 has an internal combustion engine 3 and an electric machine 4 , the electric machine being connected via a power electronics system 5 to an energy store 6 or to a high-voltage vehicle electrical system. In the exemplary embodiment shown here, internal combustion engine 3 and electric machine 4 are rigidly coupled to one another via a connecting shaft 7 . Of course, a separating clutch (not shown) can be provided in the connecting shaft 7 and thus in the functional connection between the internal combustion engine 3 and the electric machine 4 in order to decouple the internal combustion engine 3 from the electric machine 4 .

[0029] Electric machine 4 is preferably rigidly and / or permanently coupled to output shaft 8 of hybrid drive 2 . The output shaft is coupled via a starter clutch 9 to a transmission 10 of the drive train 1 . ...

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Abstract

The invention relates to a method for operating a hybrid drive device (2) which has an internal combustion engine (3) and an electric machine (4) which can be or is operatively connected to the internal combustion engine (3) and can be operated as a generator, wherein in a normal operating mode a temperature of the electric machine (4) is determined by means of a temperature sensor (14), and operation of the electric machine (4) is permitted only if the temperature is lower than a predefined maximum temperature. There is provision here that in the event of a defect in the temperature sensor (14) an emergency operating mode is carried out in which operation of the electric machine (4) is permitted only with limited power, limited torque and / or over a limited time period. The invention further relates to a hybrid drive device (2).

Description

technical field [0001] The invention relates to a method for operating a hybrid drive having an internal combustion engine and an electric machine operatively connected or operatively connected to the internal combustion engine and operable as an electric motor and generator, wherein in normal operating mode , the temperature of the electric machine is determined by means of a temperature sensor, and the electric machine is only permitted to operate if said temperature is less than a predetermined maximum temperature. Furthermore, the invention relates to a hybrid drive. Background technique [0002] Hybrid drives are used, for example, to drive a motor vehicle, ie to provide torque for driving the motor vehicle. The hybrid drive has a plurality of drive units, in particular at least two drive units, which are preferably of different types. For example, the first drive machine is designed as an internal combustion engine and the second drive machine is designed as an elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60W20/00
CPCB60K6/48B60W20/50B60W2050/0215B60W2050/0292B60W2510/087B60W2710/083B60W2710/086Y02T10/62Y10S903/93B60K6/26B60K6/485B60K2006/262B60K2006/4825B60R16/03
Inventor M·亚当S·施勒德雷尔
Owner AUDI AG