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Method for interrupting fuel injection into an internal combustion engine

An internal combustion engine and engine technology, applied in the field of vehicle handling and control, can solve problems such as fuel consumption and driver experience degradation

Active Publication Date: 2020-03-31
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rebound of the engine speed at about 50 to 100 tr / min may make the driver's experience deterioration continue
Furthermore, this compromise is often difficult to find and the filtering can then last for a few seconds, which consumes a lot of fuel for a standard experience

Method used

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  • Method for interrupting fuel injection into an internal combustion engine
  • Method for interrupting fuel injection into an internal combustion engine
  • Method for interrupting fuel injection into an internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0037] The present invention is applicable to a vehicle powertrain including an internal combustion engine using gasoline or diesel (also commonly called diesel) and a transmission provided between the engine and the wheels of the vehicle. The internal combustion engine is arranged on a pod supporting it.

[0038] The transmission can be, inter alia, a manual type gearbox (BVM), an automatic type gearbox (BVA), a controllable manual type gearbox (BVMP) or a shifting of a dual clutch gearbox (known in English as a "dual clutch gearbox" or DCT) box.

[0039] The vehicle's computer allows automatic adaptation of the operating points of every component of the powertrain, in particular the torque provided by the internal combustion engine, in order to comply with the driver's setpoints. Specifically, when the driver depresses the accelerator pedal, the torque is calculated from the engine speed and the gear ratio engaged. The computer comprises the acquisition, processing and con...

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PUM

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Abstract

The invention relates to a method for interrupting the injection of fuel to an internal combustion engine in a vehicle during the deceleration phase, which comprises: a step of detecting a request to decelerate the vehicle, and a step of determining a corrective torque (Ccor) intended for attenuating engine speed oscillations during the deceleration, characterised in that it comprises: a step of detecting the first maximum corrective torque and, following the detection of said first maximum corrective torque, a step of requesting the interruption of the injection when the corrective torque (Ccor) reaches a value proportional to the first maximum corrective torque.

Description

technical field [0001] The invention relates to the control of internal combustion engines. In particular, the invention relates to a method for interrupting fuel injection into an internal combustion engine of a vehicle during deceleration. [0002] The invention relates to the field of handling control of vehicles equipped with a petrol or diesel thermal powertrain (GMP) with manual type (BVM), automatic type (BVA), controllable manual type (BVMP) or dual clutch (DCT) gearbox . Background technique [0003] figure 1 A powertrain fitted to a vehicle is schematically shown. The powertrain includes a heat engine 1 . exist figure 1 In , the engine is connected to a transmission 2 which typically includes a gearbox and a clutch, where only the elements of the transmission connected to the engine 1 are shown. Heat engines can be gasoline or diesel engines. The gearbox can be a manual type (BVM), an automatic type (BVA), a controlled manual type (BVMP) or a dual clutch (DC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14F02D41/12
CPCF02D11/105F02D41/123F02D41/1497F02D2200/602F02D2250/21F02D2250/28
Inventor 马蒂厄·托马斯西蒙·米绍朱丽叶·德赛
Owner PEZHO SITROEN AUTOMOBILS SA