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Method and control device for operating a hybrid vehicle

A technology of hybrid vehicle and control device, applied in the direction of hybrid vehicle, power device, control device, etc.

Pending Publication Date: 2022-05-17
ZF FIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method and control device for operating a hybrid vehicle
  • Method and control device for operating a hybrid vehicle
  • Method and control device for operating a hybrid vehicle

Examples

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Embodiment Construction

[0024] figure 1 An exemplary diagram of a powertrain 1 of a hybrid vehicle is shown. The hybrid vehicle comprises a plurality of drive units, namely an electric machine 3 as a first drive unit and a combustion engine 2 as a second drive unit. A disconnect clutch 4 is connected between the electric machine 3 and the combustion engine 2 . A transmission 5 is connected between the electric machine 3 and a driven device 6 of the hybrid vehicle.

[0025] The transmission 5 can include a starting clutch 7 which is likewise connected between the electric machine 3 and the output 6 . In the exemplary embodiment shown, starting clutch 7 is a transmission-internal shifting element of transmission 5 . It is also possible that there is a starting clutch 7 outside the transmission.

[0026] When the separating clutch 4 is disengaged, the combustion engine 2 is decoupled from the electric machine 3 , the transmission 5 and the output 6 . In this case, only the drive torque from the ele...

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Abstract

The invention relates to a method for operating a hybrid vehicle having an electric machine (3) as a first drive unit, a combustion engine (2) as a second drive unit, a disconnect clutch (4) connected between the combustion engine (2) and the electric machine (3), and a transmission (5) connected between the electric machine (3) and an output (6). When there is a request to close the disconnect clutch (4) on the control side and when there is a request to carry out an upshift on the control side, it is checked whether an upshift is required to prevent the vehicle-side rotational speed from reaching or exceeding a rotational speed limit value. When an upshift is required to prevent the vehicle-side rotational speed from reaching or exceeding a rotational speed limit value, the upshift is carried out in the transmission preferentially relative to the implementation of a closing process of the disconnect clutch. The invention also relates to a control device for operating a hybrid vehicle.

Description

technical field [0001] The invention relates to a method for operating a hybrid vehicle. Furthermore, the invention relates to a control device for operating a hybrid vehicle. Background technique [0002] Hybrid vehicles known from practice have a combustion engine and an electric machine as drive unit. A disconnect clutch is connected between the combustion engine and the electric machine. Furthermore, the hybrid vehicle has a transmission which converts the rotational speed and the torque and thus prepares the traction force of the drive unit to be supplied to the output of the hybrid vehicle. A transmission is connected between the electric machine and the driven device. [0003] Hybrid vehicles can operate in different operating modes. Thus, the hybrid vehicle can be operated purely electrically with the combustion engine in particular stopped and decoupled from the output. For this purpose, the separating clutch connected between the combustion engine and the elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/30B60W20/40B60W10/02B60W10/06B60W10/08B60W10/11
CPCB60W20/30B60W20/40B60W10/02B60W10/06B60W10/08B60W10/11B60W2710/021B60W2710/1005B60W2710/0644B60W2710/081Y02T10/62B60K6/387B60K2006/4825B60W20/20B60W2510/0638B60W2510/1015B60K6/48B60W30/19B60W2520/10B60W2510/104
Inventor J·凯勒F·德佩兹
Owner ZF FIEDRICHSHAFEN AG
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