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Method and apparatus for controlling a speed preselection mechanism of a transmission of a vehicle to limit amplification of undesired frequencies

A technology for speed pre-selection and transportation, applied in transmission control, mechanical equipment, components with teeth, etc., which can solve problems such as expensive and difficult to achieve

Active Publication Date: 2016-10-05
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach often proves to be expensive or very difficult to implement

Method used

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  • Method and apparatus for controlling a speed preselection mechanism of a transmission of a vehicle to limit amplification of undesired frequencies
  • Method and apparatus for controlling a speed preselection mechanism of a transmission of a vehicle to limit amplification of undesired frequencies
  • Method and apparatus for controlling a speed preselection mechanism of a transmission of a vehicle to limit amplification of undesired frequencies

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Embodiment Construction

[0024] The object of the invention is in particular to propose a control method and an associated control device D for controlling the operation of a speed preselection mechanism MP of a gearbox BV of a vehicle V.

[0025] In what follows, as a non-limiting example, the vehicle V is considered to be of the motorized type. For example about cars. However, the invention is not limited to this type of vehicle. In fact, it relates to all types of land or sea (or river) or even air vehicles equipped with a powertrain comprising, if required, an electric motor coupled to an energy storage unit.

[0026] Furthermore, in what follows, as a non-limiting example, it is considered that the powertrain comprises a gearbox BV of the type described as double clutch (or DCT). However, the invention is not limited to this type of gearbox. In fact, it concerns all types of gearboxes including the speed preselection mechanism MP.

[0027] exist figure 1 In is schematically shown a vehicle V...

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Abstract

A control device (D) is provided in a vehicle (V) having a power train that comprises a gearbox (BV) having a speed preselection mechanism (MP) and has a variable operational frequency mode. Said device (D) includes a control means (MC) that is configured, in the event that the power train generates an undesirable frequency amplified by a gearbox (BV) frequency mode that is running, to trigger a modification in the operation of the speed pre-selection mechanism (MP) so as to shift the frequency mode that is running.

Description

technical field [0001] The invention relates to a vehicle equipped with a powertrain comprising a gearbox with a speed preselection mechanism. Background technique [0002] Here, it should be understood that "a gearbox with a speed preselection mechanism" refers to a gearbox that allows simultaneous selection of a first speed for moving a vehicle and preselection of a second speed in advance for the next change in speed. Accordingly, the present invention relates to a gearbox (or DCT, for "Dual Clutch Transmission") having at least two clutches. [0003] The powertrain of a vehicle generates noise and / or vibrations, the frequency of which varies according to the mode of operation as well as the speed of rotation. For example, such noise and / or vibration may be caused by cycling of a thermal motor of the powertrain, or "chattering" of the clutch due to a failure of the clutch mechanism or a frictional failure of the clutch. It may be characterized, for example, by rattling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H61/688
CPCF16H57/0006F16H61/0213F16H61/688
Inventor O·巴伦吉恩J·S·博凯
Owner PEZHO SITROEN AUTOMOBILS SA