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Method for attenuating a curative smoothing torque in the event of activation of an idling speed control valve and corresponding engine computer

A regulator, comfort technology, applied in the field of engine computer, to achieve the effect of improving driving experience

Active Publication Date: 2016-06-22
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to effectively solve these disadvantages, the present invention proposes a method for controlling the torque of an internal combustion engine equipped with a first regulator, called an idle speed regulator, capable of generating the idle torque at the nominal idle speed to avoid stalling of the internal combustion engine, and a second regulator, called the corrective comfort regulator, which is able to counteract

Method used

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  • Method for attenuating a curative smoothing torque in the event of activation of an idling speed control valve and corresponding engine computer
  • Method for attenuating a curative smoothing torque in the event of activation of an idling speed control valve and corresponding engine computer

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Embodiment Construction

[0021] figure 1 A system for managing torque control of an internal combustion engine is shown, integrated in the memory of an engine computer in the form of software instructions. This system 1 includes a module 2 that interprets the driver's wishes, enabling the determination of the target torque Cc. The system 1 also includes a preventive comfort module 3 and an idle speed regulator 4, which interact with a torque coordination module 5, which is associated with a corrective comfort regulator 6, which provides the engine with Torque Cf.

[0022] More specifically, the module 2 determines the torque Cc, called rated torque, based on the engine speed Wm, the gear ratio R of the gearbox, and the accelerator pedal position Pp, which is operated by the driver, so that the driving members' wishes.

[0023] The setpoint torque Cc is then filtered by means of the preventive comfort module 3 in order to minimize the pauses when passing through the engine gap. Thus, module 3 deter...

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PUM

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Abstract

The invention mainly relates to a method for controlling the torque of a heat engine provided with a first governor (4), referred to as idling speed control valve, capable of generating an idling torque (Cral) intended for maintaining a predetermined set idling speed (Wral) such as to prevent said heat engine from stalling, and a second governor (6), referred to as a curative smoothing governor, capable of compensating for an oscillation in the speed of the heat engine (Wm) by applying a corrective torque in phase opposition with the speed of the heat engine (Wm), characterised in that in the event of simultaneous activation of the idling speed control valve (4) and the curative smoothing governor (6), said method comprises the step of attenuating said corrective torque produced by said curative smoothing governor (6) without cancelling same unless there is a risk of the heat engine stalling. The invention also relates to the corresponding engine computer.

Description

technical field [0001] The invention relates to a method for damping a corrected comfort torque when an idle speed controller is activated and to a corresponding engine computer. The invention finds a particularly advantageous application in the field of drive control of vehicles equipped with a powertrain consisting of a gasoline or diesel internal combustion engine and a manual type (BVM), automatic type (BVA), navigation type (BVMP) or A gearbox of the dual clutch type (DCT) is formed. Background technique [0002] Such vehicles are equipped with an engine computer that allows automatic adaptation of the operating points of each component of the vehicle, in particular the internal combustion engine, in order to meet the driver's wishes in terms of torque demand. In order to obtain an optimal driving experience, the computer implements two types of filtering on the requested torque, which is achieved by means of a preventive comfort module and a corrective comfort regulat...

Claims

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Application Information

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IPC IPC(8): F02D41/14F02D41/16F02D41/26
CPCF02D41/16F02D41/0225F02D41/1497F02D41/266F02D2041/1418F02D2200/101F02D2200/602F02D2250/18
Inventor 朱丽叶·查尔斯马蒂厄·托马斯弗兰克·祖米拉
Owner PEZHO SITROEN AUTOMOBILS SA