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Method for operating drive train and control device

A driving system and driving force technology, applied in the field of driving system, can solve problems such as long shift time, and achieve the effects of avoiding shift shock, shortening shift time, and improving shift comfort

Inactive Publication Date: 2016-10-12
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, relatively long shift times can occur

Method used

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  • Method for operating drive train and control device
  • Method for operating drive train and control device
  • Method for operating drive train and control device

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] figure 1 A schematic diagram of a first drive train of a hybrid vehicle is shown, in which the method according to the invention can be used. therefore, figure 1 The drive train has an internal combustion engine 1, an electric motor 2, an automatic shift transmission 3 and an output device 4, wherein the automatic shift transmission 3 is connected between the internal combustion engine 1 and the output device 4. The automatic shift transmission 3 is also connected between the motor 2 and the output device 4 .

[0016] exist figure 1 In this case, both the internal combustion engine 1 and the electric machine 2 of the hybrid drive are engaged with a transmission input shaft of an automated shift transmission 3 . according to figure 1 , the motor 2 is engaged with the transmission input shaft of the automatic shift transmission 3 through the friction clutch 5 . The internal combustion engine 1 is coupled to a transmission input shaft of an automated transmission 3 vi...

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PUM

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Abstract

A method for operating a drive train of a hybrid vehicle having a hybrid drive comprising at least one electric machine (2) and an internal combustion engine (1), wherein an indirect connection between the internal combustion engine (1) and an output device (4) There is an automatic shift transmission (3), wherein the electric motor (2) is coupled to the shaft of the automatic shift transmission (3) via a friction clutch (5), and wherein, in the automatic shift transmission (3), the interruption is made by mixing With the drive torque available at the output, the drive implements a shift in such a way that the drive torque available at the output (4) is first reduced in a first phase and then carried out in a second phase The actual gear change, and then in the third phase, the drive torque is built up again at the output (4), wherein, to carry out the actual gear change, after disengaging the actual gear and before engaging the target gear , the gearshift transmission (3) is synchronized in such a way that the rotational inertial mass of the electric motor is fully utilized, that is, when the friction clutch (5) is opened, the rotational speed of the electric motor (2) is brought to the inertial rotational speed, and subsequently For the rotational inertia synchronization of the gearshift transmission, the friction clutch (5) is first engaged and then at least partially opened again.

Description

technical field [0001] The invention relates to a method for operating a drive train of a hybrid vehicle. Furthermore, the invention relates to a control device for carrying out the method. Background technique [0002] The main components of the drive train of a hybrid vehicle are the hybrid drive and the transmission. The transmission converts speed and torque and thus provides traction of the hybrid drive at the output of the drive train. The invention relates to a method for operating a drive train of a hybrid vehicle, the hybrid drive of which comprises at least one electric machine and an internal combustion engine, and a control device for carrying out the method. An automatic shift transmission is connected between the internal combustion engine and the output device. The electric motor is coupled to the shaft of the automatic shift transmission via a friction clutch. [0003] In automatic shift transmissions, the gear change is carried out while interrupting the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/19B60W20/30B60W20/40B60W10/111B60W10/08B60W10/06F16H3/12B60K6/48F16H61/04
CPCB60K6/48B60W10/06B60W10/08B60W10/111B60W20/00B60W30/19F16H61/0403B60K2006/4825B60W2510/088B60W2710/081F16H2061/0422F16H3/126Y02T10/62B60W10/02Y10S903/902B60W10/11B60W10/108B60W10/00B60W30/00B60W20/10
Inventor 约翰尼斯·卡尔滕巴赫克里斯蒂安·米特尔贝格尔维克托·约翰尼斯·黑贝尔勒
Owner ZF FRIEDRICHSHAFEN AG
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