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Method for controlling the status of the coupling of a traction machine to a wheelset of a motor vehicle

A technology for motor vehicles and tractors, applied in mechanical equipment, clutches, etc., can solve problems such as damage to claw couplings, and achieve the effects of improving stability, improving energy consumption performance, and optimizing driving comfort.

Active Publication Date: 2021-04-09
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this repeated movement may damage the claw coupling

Method used

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  • Method for controlling the status of the coupling of a traction machine to a wheelset of a motor vehicle
  • Method for controlling the status of the coupling of a traction machine to a wheelset of a motor vehicle
  • Method for controlling the status of the coupling of a traction machine to a wheelset of a motor vehicle

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Embodiment Construction

[0029] exist figure 2 In , a motor vehicle hybrid architecture 1 for advantageously applying the control method is firstly shown schematically. It should be noted, however, that the invention is applicable to powertrains with hybrid hydraulic / pneumatic motorization, purely electric powertrains and powertrains with only thermal motorization. The scope of various terms used in the description is now clarified. Tractors can be thermal, electric, hydraulic or pneumatic. A coupling device is a torque transmitting component, such as a clutch device, a gearbox or a dog coupling, which allows coupling and decoupling of the tractor to and from the wheel bridges of the drive train of the vehicle. Finally, a join state request involves a request to open, also known as detach, or to close, also known as join. Additionally, it should be noted that in the case of a gearbox, the request to open corresponds to a neutral position and the request to close corresponds to the position of one ...

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PUM

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Abstract

The invention relates to a method for controlling a coupling means of a motor vehicle. The control signal of such a device is liable to be disturbed by short-lived demands because of the detection of successive demands for a coupling status during a steep-gradient transient of setpoint torque at the wheels. In order to avoid oscillations in the control signal, when a target coupling status demand is detected, the control method according to the invention comprises the successive steps of determining (403) the coupling status of the coupling means which is instructed at the moment of detection of said demand, and the command (407) for a demand for coupling status is authorised as soon as said demand is detected when the coupling status instructed at the time of the detection is identical to the target coupling status.

Description

technical field [0001] The invention relates to a method for controlling the state of coupling of a tractor of a motor vehicle to a wheel axle of the vehicle. [0002] The invention is in the field of motor vehicles with hybrid, electric or thermal drive powertrains. Usually, these powertrains are equipped with one or more coupling devices, such as clutch devices or dog couplings, which allow coupling and decoupling of the vehicle's tractor to and from the wheel bridge. Background technique [0003] The control management of the coupling device is crucial for the coordination of powertrain energy strategies aimed at optimizing vehicle energy consumption, especially if the powertrain allows multiple traction modes such as thermal driving mode, hybrid driving mode or pure electric driving mode hour. International patent application WO 2011 / 080439A1 filed by the applicant is known, for example, which describes a method for decoupling a claw coupling arrangement. [0004] Thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/10412F16D2500/1064F16D2500/1066F16D2500/3026F16D2500/30401F16D2500/30406F16D2500/30421F16D2500/5043F16D2500/5102
Inventor 尤汗·米豪西莫拿 科里纳·格里戈里加埃唐·罗可阿诺德·巴蒂特
Owner PEZHO SITROEN AUTOMOBILS SA