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Method for controlling a prime mover for a vehicle

A technology of vehicle drive and control device, applied in the direction of control device, electrical control, vehicle components, etc., can solve the problem of increasing transmission and/or clutch wear, reducing shifting comfort, internal combustion engine not being able to optimally convert external torque access, etc. problems, to achieve the effect of increasing advantages and improving quality

Inactive Publication Date: 2006-12-06
AVL LIST GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

These uncompensated residuals lead to different characteristics of the torque access of the internal combustion engine to the transmission control unit as a function of the operating point, thus reducing shift comfort and increasing wear on the transmission and / or clutch
[0010] In the current state of the art, the control of the internal combustion engine is often not able to optimally switch the external torque access due to the unknowable prediction of other changes in the requested torque

Method used

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  • Method for controlling a prime mover for a vehicle
  • Method for controlling a prime mover for a vehicle
  • Method for controlling a prime mover for a vehicle

Examples

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Embodiment Construction

[0028] FIG. 1 shows the control structure for the control system of a drive system formed by an internal combustion engine 1 with, for example, two clutches K 1 、K 2The transmission unit 2 is connected to the driven device 3 . The number of clutches of the transmission unit is not important for the method according to the invention. An electronic engine control unit ECU is assigned to the internal combustion engine 1 , an electronic control unit TCU for transmission and clutch is assigned to the transmission 2 and a driving dynamics control unit ESP is assigned to the output unit 3 . The driving dynamics control unit ESP and the transmission control unit TCU are connected to the electronic engine control unit ECU via the data link CAN. Through the data link CAN control unit TCU and ESP can send command parameter request to the engine control unit. The command parameter request can either be a request for a torque or a request for a corrected torque that the internal combust...

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Abstract

The invention relates to a method for controlling a prime mover for a vehicle, particularly a combustion engine, comprising at least one engine control unit and at least one additional controller in the drive train. According to the invention, command variable demands are sent from the controller to the engine control unit, and the transfer function of the prime mover is at least partially depicted by means of a predetermined approximated transfer function of the prime mover.

Description

technical field [0001] The invention relates to a method for controlling a vehicle drive, in particular an internal combustion engine, with at least one engine control unit and at least one additional control unit in the drive train, wherein command parameter requests are sent from the control unit to the engine control unit , and wherein the transfer function of the drive is at least partially represented by means of a predetermined approximate transfer function of the drive. Background technique [0002] In modern vehicles, besides the engine control unit, further control devices request command parameters such as the output torque of the internal combustion engine, for example. For this purpose, usually other control devices send requests to the engine control unit via a data link such as CAN (Controller Area Network). This request can be either a request for torque, or a request for a torque that would be output by the modified engine without such an external request. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/24F02D41/14F02D41/02F02D41/26
CPCF02D2041/1433B60W2050/0037F02D41/023F02D41/1402B60Y2400/428F02D2041/1423
Inventor H·胡尔瑟
Owner AVL LIST GMBH
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