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Method for operating belt drive device

A technology of belt transmission and belt, which is applied in the direction of transmission, belt/chain/gear, machine/engine, etc., can solve the problems of belt slip, slipping, belt slipping, etc., and achieve the effect of fast attachment

Active Publication Date: 2019-07-05
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the maximum force- or torque-transmitting limit of the belt is exceeded, this can lead to a sudden increase in the slip of the belt and lead to slipping or slipping of the belt, whereby the torque can no longer be effectively transmitted

Method used

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  • Method for operating belt drive device
  • Method for operating belt drive device
  • Method for operating belt drive device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] exist figure 1 A belt drive of a motor vehicle is schematically shown in and denoted by 100 .

[0049] Via the belt 110 of the belt drive 100 , the internal combustion engine 120 of the motor vehicle is connected for torque transmission to an electric machine 130 in the form of a belt-driven starter generator.

[0050] The internal combustion engine 120 and the electric machine 130 each have a belt pulley 121 or 131 , which are connected via a belt 110 for torque transmission. Belt pulley 121 of internal combustion engine 120 can be designed, for example, as a crankshaft drive wheel, and belt pulley 131 of electric machine 130 can be designed, for example, as a drive wheel of starter generator 130 .

[0051] Starter generator 130 can be operated as a motor, for example for starting or supporting internal combustion engine 120 , torque being transmitted from belt pulley 131 of starter generator 130 to belt pulley 121 of internal combustion engine 120 . During generator...

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PUM

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Abstract

The invention relates to a method for operating a belt drive device comprising a belt connecting a driving belt pulley and a driven belt pulley in torque-transmitting manner. The total slip ratio of the belt is determined as a function of the rotational speed of the driving belt pulley and the rotational speed of the driven belt pulley (211). The elongation slip ratio (212) of the belt is determined, and the difference between the determined total slip ratio and the elongation slip ratio is determined as a standard slip ratio of the belt (213), and when the standard slip ratio of the belt reaches a threshold (214), the maximum torque of the driving belt pulley is reduced (221) until the standard slip ratio of the belt no longer reaches the threshold (222).

Description

technical field [0001] The invention relates to a method for operating a belt arrangement as well as a computing unit and a computer program for carrying out the method. Background technique [0002] The electric machine can be used in a motor vehicle as a so-called starter generator, in order to start the internal combustion engine on the one hand in the motor mode of the electric machine, and on the other hand in the generator mode of the electric machine to generate electricity for the on-board circuit and to supply Motor vehicle battery charging current. An electric machine of this type can be connected to the internal combustion engine or the crankshaft for torque transmission via a belt, for example via a V-belt of the internal combustion engine (a so-called belt starter generator, RSG). [0003] For example, a boost recovery system (BRS) can be realized by means of an electric machine of this type. In generator operation, the electric machine absorbs the drive torqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B67/06
CPCF02B67/06B60W10/06F16H7/02
Inventor A.胡茨瓦尔M.卡梅尔赖特
Owner ROBERT BOSCH GMBH
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