Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for running internal-combustion engine

An internal combustion engine, speed technology, applied in mechanical equipment, engine control, fuel injection control, etc., can solve problems affecting the speed of the internal combustion engine, and achieve the effect of improving the guiding performance

Inactive Publication Date: 2007-04-04
ROBERT BOSCH GMBH
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] By estimating the disturbance torque according to the invention, it is possible to take into account otherwise unmeasurable disturbance variables in the speed controller of the internal combustion engine, but which nonetheless influence the speed of the internal combustion engine and which, in conventional methods, lead, for example, to a regulation that cannot be damped in steady state.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for running internal-combustion engine
  • Method and device for running internal-combustion engine
  • Method and device for running internal-combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] FIG. 1 shows a block diagram showing the signal flow of a first embodiment of a rotational speed controller 100 according to the invention. It can be seen from FIG. 1 that the speed controller 100 is supplied with a differential e on the input side, wherein the differential is a given setpoint speed n_nominal as reference variable and a measurement technique of the internal combustion engine 10 ( FIG. 3 ). The difference between the actual speed n_BKM.

[0019] The rotational speed regulator 100 has a regulating element R formed from a proportional element, which converts the differential e into a setpoint torque M_setpoint for controlling the internal combustion engine 10 , which is shown in the block diagram of FIG. 3 in the form of block 10 out. In contrast to conventional speed controllers with a regulating element formed by a PI controller, the speed controller 100 according to the invention has only a relatively small overshoot behavior even in the case of sharp ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a method for running internal-combustion engine(10), wherein the rotate speed(n_BKM)of the internal-combustion engine (10)is adjusted according to the given rated speed(n_rated)and a rated moment(M_rated)for controlling the internal-combustion engine(10)is calculated by means of a governing loop(R)according to the adjusting difference(e)between the rotate speed(n_BKM)and the rated speed(n_rated). The disturbing moment(M_disturbing), in particualr to represent the immeasurable disturbing quantity, is estimated according to the present invention, and an adjusting memont(M_adjusting)for controlling the internal-combustion engine (10)is calculated according to the rated moment(M_rated)and the disturbing moment(M_disturbing).

Description

technical field [0001] The invention relates to a method for operating an internal combustion engine, in which the rotational speed of the internal combustion engine is regulated as a function of a given setpoint rotational speed, and in which a setpoint torque for controlling the internal combustion engine is determined by means of a regulating element as a function of the difference between the rotational speed and the setpoint rotational speed. [0002] The invention also relates to a device for operating an internal combustion engine according to the preamble of claim 9 . Background technique [0003] Methods and devices of this type are known and are generally based on a regulation loop constructed with a PI (proportional-integral) controller. Due to the integration link of the PI adjustment link used in the traditional system, when the reference variable changes drastically and thus causes a large adjustment error, the integrator of the integral link will establish an ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F02D41/00
CPCF02D2250/18F02D2041/1433F02D2041/1409F02D41/1401F02D2200/1006F02D31/001F02D2041/1434
Inventor H·瓦纳B·比肖夫B·巴卡斯J·宾德
Owner ROBERT BOSCH GMBH