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Method of Filtering Engine Set Torque While Passing Engine Gap

An engine and gap technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve problems such as deterioration of vehicle conditions and unsuitability for old engines

Inactive Publication Date: 2018-03-20
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the calibrated threshold is not optimal for all vehicles and is not suitable for old engines, which will make the vehicle condition worse

Method used

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  • Method of Filtering Engine Set Torque While Passing Engine Gap
  • Method of Filtering Engine Set Torque While Passing Engine Gap
  • Method of Filtering Engine Set Torque While Passing Engine Gap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 2 A management system 1 for the manipulation of the torque of a heat engine integrated in an engine computer is shown. The system 1 has a driver's will interpretation module 2 , and a preventive modification module 3 and a therapeutic modification module 4 interacting with an engine clearance passing detection module 5 .

[0031] More precisely, in step 101, module 2 uses the engine speed Wm, the gear ratio of the engaged gearbox and the position of the accelerator pedal applied by the driver to determine the torque Cc, i.e. the set torque, to re-express the driver's will .

[0032] Subsequently, in step 103 , the set torque Cc is filtered by means of the preventive trim module 3 in order to limit the working intervals in the passing region of the engine clearance to the maximum. This zone Z will be detected beforehand by the module 5 during step 102 which will be explained in more detail below.

[0033] To this end, the module 3 first determines the effectiv...

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PUM

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Abstract

The invention relates mainly to a method for filtering an engine reference torque when passing through engine lash involving the following steps: - determining (101) an engine reference torque, - detecting (102) a time (t1) of entering engine lash and a time (t2) of exiting engine lash defining a zone (Z) of passing through engine lash, - filtering (103) the engine reference torque (Ce) in the zone (Z) of passing through engine lash, and - if need be, applying (104) a corrective torque (Ccor) in phase opposition with a speed (Wm) of the combustion engine. According to the invention, the time (t1) of entering engine lash is detected from a variation in the speed (Wm) of the combustion engine or from a variation in the corrective torque (Ccor).

Description

technical field [0001] The present invention is directed to a method of filtering engine set torque while passing through engine clearances. [0002] The invention is applicable in the field of control for manipulating vehicles equipped with a gasoline or diesel thermal powertrain (GMP) with a manual transmission (BVM), an automatic transmission (BVA), a driving transmission (BVMP) or Dual Clutch Transmission (DCT). Background technique [0003] Such vehicles are equipped with computers capable of automatically adapting the operating points of each component of the vehicle, especially the heat engine, in order to follow the driver's wishes with regard to the required torque. In order to obtain an optimal vehicle situation, the computer performs two types of filters on the requested torque achieved by the driver, with the aid of a preventive modification module (module d’agrément) and a therapeutic modification module. [0004] The preventive grooming module also ensures th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14G05D17/00
CPCF02D41/1408B60Y2300/77F02D11/105F02D41/0225F02D41/107F02D41/1497F02D2041/1432F02D2200/1012F02D2250/18F02D2250/28
Inventor M·托马斯J·查尔斯
Owner PEZHO SITROEN AUTOMOBILS SA