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Method and device for starting motor vehicle with hybrid drive

A hybrid and motor vehicle technology, which is applied to hybrid vehicles, the layout of multiple different prime movers of general power plants, and motor vehicles, and can solve problems affecting starting strategies and obstructions

Inactive Publication Date: 2019-03-15
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, starting in the two known starting possibilities, purely electric and electrodynamic, is hampered by additional influencing factors which influence the selection of the starting strategy within these two starting possibilities.

Method used

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  • Method and device for starting motor vehicle with hybrid drive
  • Method and device for starting motor vehicle with hybrid drive
  • Method and device for starting motor vehicle with hybrid drive

Examples

Experimental program
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Embodiment Construction

[0017] Such as figure 1 The current gear set shown in has a first drive shaft 1 for connecting the first partial transmission of the main transmission HG with the first drive (here an internal combustion engine not shown), for connecting the second drive The second drive shaft 4 , the countershaft 5 , the main shaft 10 and the output shaft 2 are connected (here the electric machine EM ) to the second partial transmission of the main transmission HG. Five idler gears 6, 7, 8, 9 and 11 are supported on the drive shafts 1 and 4 and on the main shaft 10, which can be connected to Transmission shaft or range block group GP connection. The range group GP is formed by a planetary gear transmission including at least a sun gear, a cage with planet gears, and a ring gear 12 . The ring gear 12 can be connected via further shift elements L and S either to a component fixed relative to the housing or to the output shaft 2 . The electric machine EM is connected via the planetary stage P...

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PUM

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Abstract

The invention relates to a method for starting a motor vehicle with a hybrid drive that comprises an internal combustion engine and an electric machine (EM), the motor vehicle having a transmission configuration which allows an electrodynamic or purely electric start. According to the invention, a tractive resistance and a charge state of an electric energy store of the electric machine (EM) are analyzed and a starting strategy is selected depending on the identified tractive resistance and charge state.

Description

technical field [0001] The invention relates to a method for starting a motor vehicle with a hybrid drive and a corresponding control device. Background technique [0002] Various possibilities for starting a vehicle with a hybrid drive are known from the prior art. Thus, for example, DE 10 2010 063 582 A1 of the applicant discloses an arrangement for the drive train of a hybrid vehicle with a planetary gear arranged between the electric machine and the input shaft of the transmission and utilizing planetary The gear unit can connect the third element of the planetary gear unit for purely electric starting to the housing side. This occurs when the electrical energy storage is discharged heavily. An increased breakaway torque can thus be provided via the planetary gear acting as a constant gear ratio stage. The third element of the planetary gear can also be connected to the input shaft of the internal combustion engine so that it can be started electrodynamically. In thi...

Claims

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Application Information

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IPC IPC(8): B60W30/18B60W20/15B60K6/48B60K6/365B60K6/387B60W10/06B60W10/08B60W10/11B60W10/02
CPCB60K6/365B60K6/387B60K6/48B60K6/547B60W10/02B60W10/06B60W10/08B60W10/11B60W20/00B60W30/18027B60K2006/4825B60W2510/244B60W2530/16B60W20/20B60W20/15B60W20/30Y02T10/62B60K6/26B60K2006/268B60W10/115B60W20/40B60W2710/1005B60Y2200/92B60Y2300/192
Inventor 雷克·格斯滕斯特凡·伦纳约翰尼斯·卡尔滕巴赫约翰尼斯·格吕克勒
Owner ZF FRIEDRICHSHAFEN AG