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Method for controlling the coupling/decoupling of a traction machine of a motor vehicle

A technology of motor vehicles and control methods, which is applied to the arrangement of multiple different prime movers of motor vehicles, hybrid vehicles, and general-purpose power plants, and can solve the problems of reducing the consumption value of vehicles and achieve the effect of reducing consumption

Active Publication Date: 2015-10-14
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, these known methods of engaging / disconnecting control have several disadvantages
Also, these control methods can result in the powertrain being continuously coupled for a relatively long period of time so the vehicle speed remains constant, which incurs a loss of energy (typically several kilowatts at high speeds) due to the torque lost by the powertrain
This loss reduces the vehicle consumption value

Method used

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  • Method for controlling the coupling/decoupling of a traction machine of a motor vehicle
  • Method for controlling the coupling/decoupling of a traction machine of a motor vehicle
  • Method for controlling the coupling/decoupling of a traction machine of a motor vehicle

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Embodiment Construction

[0033] In what follows, as a non-limiting example, a motor vehicle is considered to be figure 1 Vehicle 1 type shown. The invention is applicable to all types of vehicles having a powertrain comprising at least one internal combustion engine 5 and at least one powertrain 7 coupled to an energy storage device 10 . In fact, the invention relates to all types of hybrid vehicles, land or sea (or river) or air.

[0034] Furthermore, in the following, as a non-limiting example, the power mechanism 7 is considered to be of the electric motor type. But the invention is not limited to this type of power unit. Likewise, the invention also relates to hydraulic machines (or hydraulic motors) or air compressors capable of recovering energy.

[0035] exist figure 1 A hybrid vehicle 1 including a powertrain and a management computer 14 for the powertrain is schematically shown on the top.

[0036] The powertrain of the vehicle 1 comprises at least one internal combustion engine 5 couple...

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PUM

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Abstract

In this method for controlling the coupling / decoupling of a traction machine of a motor vehicle to / from at least one wheel assembly, steps are carried out that allow the determination (120) of a moment (t_C1) when a torque set point (Croue_cons) to be applied to at least one wheel assembly of the vehicle is higher (110) than a pre-determined coupling threshold (C1) or higher than a pre-determined decoupling threshold, followed by the calculation (140) of a first parameter (PT1) and / or a second parameter (PS2) depending on said moment (t_C1), and the authorisation (160) of the coupling / decoupling when said first parameter (PT1) is higher (150) than a first pre-determined value (t1) and / or when said second parameter (PS1) is higher (150) than a second pre-determined value (S1).

Description

technical field [0001] The invention relates to a control method for coupling / disconnecting a powertrain to / from a wheel set of a motor vehicle. [0002] The invention belongs to the field of hybrid vehicles comprising at least one internal combustion engine and at least one other power mechanism, such as an electric machine. Other types of power units are also contemplated, such as hydraulic presses or air compressors. Background technique [0003] The control method is applicable to a motor vehicle including a powertrain having a coupling / disconnecting mechanism for coupling / disconnecting the powertrain to / from a wheel set of the vehicle. [0004] More specifically, the control method is applicable to a hybrid vehicle including a power system management computer for coupling / disconnecting the powertrain. [0005] Known powertrain coupling / disconnection control methods generally include a first procedure for allowing coupling / disconnection, referred to as an enabling proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60K6/52B60W10/02
CPCB60W20/20B60K6/48B60K6/52B60W10/02B60W2520/10B60W2540/10B60W2720/30B60W2720/403Y02T10/62
Inventor C·洛奈Y·米约
Owner PEZHO SITROEN AUTOMOBILS SA
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