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Method for starting the combustion engine during a load shift in parallel hybrid vehicles

A technology for starting a hybrid vehicle and an internal combustion engine, which is applied to the arrangement of multiple different prime movers of a hybrid vehicle and a general power plant, and the use of engine-driven traction, etc., can solve problems such as interruption of pulling force, and achieve high shifting comfort. , Improve comfort and achieve the effect of speed adjustment

Inactive Publication Date: 2010-06-30
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is provided that when a higher gear ratio is engaged in the transmission, the connection between the electric motor and the transmission is interrupted by the opening of the associated clutch, which leads to an interruption of the pulling force

Method used

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  • Method for starting the combustion engine during a load shift in parallel hybrid vehicles
  • Method for starting the combustion engine during a load shift in parallel hybrid vehicles
  • Method for starting the combustion engine during a load shift in parallel hybrid vehicles

Examples

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Embodiment Construction

[0026] Such as figure 1 As shown, the drive train of a parallel hybrid vehicle comprises an internal combustion engine 1 and at least one electric machine 2, the electric machines are switched on sequentially, wherein the internal combustion engine 1 can be disengaged from the electric machine 2 and thus the drive train by opening a clutch K1 connect.

[0027] After the electric machine 2 in the direction of power flow, a load-controlled transmission 3 is arranged, as shown in a simplified schematic diagram for illustrating the method of the present invention, the load-controlled transmission includes a new gear for the new gear to be engaged, an approaching An active clutch K_new and a disengaging clutch K_old for the old gear, each clutch or each gear is assigned a gear stage with the gear ratio i_new or i_old. exist figure 1 In , the driven end of the load control transmission 3 is denoted by reference numeral 4 .

[0028] As already mentioned, according to the invention...

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PUM

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Abstract

The invention relates to a method for starting the combustion engine in parallel hybrid vehicles, wherein the combustion engine is started via the electric engine during a load shift in the electric operation only.

Description

technical field [0001] The invention relates to a method for starting an internal combustion engine during a load shift in a parallel hybrid vehicle according to the preamble of claim 1 . Background technique [0002] Hybrid vehicles known from the prior art contain a hybrid transmission. Such vehicles contain, in addition to an internal combustion engine, at least one electric motor or electric machine. In a series hybrid vehicle, a generator is driven by the internal combustion engine, which feeds electrical energy to the electric motors that drive the wheels. Furthermore, parallel hybrid vehicles are known in which the torque of the internal combustion engine and the torque of at least one electric machine connectable to the internal combustion engine are added. The electric machine can here be connected to a belt drive or to the crankshaft of the internal combustion engine. The torque generated by the internal combustion engine and / or the at least one electric machine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W30/18B60L50/16B60W10/10
CPCY02T10/6286B60L2240/423B60W30/192B60W2710/081B60W10/06B60K6/48B60W10/02B60K6/547B60W2710/083B60L2240/421B60W20/00B60W10/113B60L2240/443B60W10/11Y02T10/642B60W30/19B60Y2400/428B60W10/08Y02T10/6221B60W30/18018B60W2510/0657Y02T10/62Y02T10/64B60K2006/268
Inventor J·卡尔滕巴赫
Owner ZF FRIEDRICHSHAFEN AG
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