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Method for optimising the passage from one operating mode to another for a rotating electrical machine

A technology of rotating electrical machines and operating modes, which is applied in the direction of controlling generators, electrical components, starting devices, etc., and can solve problems such as reducing the available time of motors

Pending Publication Date: 2020-11-27
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the time for rotor demagnetization and remagnetization reduces the available time of the motor

Method used

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  • Method for optimising the passage from one operating mode to another for a rotating electrical machine
  • Method for optimising the passage from one operating mode to another for a rotating electrical machine
  • Method for optimising the passage from one operating mode to another for a rotating electrical machine

Examples

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Embodiment Construction

[0020] figure 1 An alternator starter 10 according to the invention is schematically represented. The alternator starter 10 is designed to be installed in a vehicle comprising an on-board electrical network connected to a battery 12 . The on-board electrical network can be of the 12V, 24V or 48V type. The alternator starter 10 is coupled to the heat engine 11 in a known manner by a system 11' with a strap or chain embedded in the front end of the accessory.

[0021] Furthermore, the alternator starter 10 can communicate with the engine computer 15 according to a communication protocol of the LIN (Local Interconnect Network) type or CAN (Controller Area Network, which is a serial system bus) type.

[0022] The alternator-starter 10 can operate in an alternator mode, known as generator mode or motor mode.

[0023] Specifically, the alternator starter 10 includes an electrotechnical component 13 and a control module 14 .

[0024] More specifically, the electrotechnical compon...

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PUM

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Abstract

The invention mainly relates to a method for controlling a rotating electrical machine (10) for a motor vehicle, comprising a stator (18) and a wound rotor (19), the wound rotor (19) being intended tobe traversed by an excitation current, said rotating electrical machine (10) being capable of operating in an alternator mode and in a motor mode, characterised in that when the rotating electrical machine (10) passes from one operating mode to another, said method comprises a step of controlling the rotor (19) so that the excitation current changes from a first setpoint value to a second setpoint value passing through a strictly positive minimum intermediate setpoint value, said intermediate setpoint value corresponding to a minimum excitation current above which the rotating electrical machine (10) delivers a DC current in generator mode and at which and below which the rotating electric machine does not deliver a DC current.

Description

technical field [0001] The invention relates to a method for optimizing the changeover of a rotating electrical machine from one operating mode to another. Background technique [0002] In known manner, the reversible electric machine can be coupled to the heat engine via the accessory front end. Often called an alternator starter, this motor can be run in generator mode to charge the vehicle's battery or as a motor to supply torque to the vehicle. [0003] Generator mode can be used in the regenerative braking function, allowing the electric motor to supply power to the battery during the braking phase. [0004] Motor mode is particularly useful for functions that automatically stop and restart the heat engine depending on traffic conditions (STT function known as "stop and start"), heat engine stall assist function that allows the electric motor to assist the heat engine intermittently during phases of driving in heat mode A function called boost, and a freewheel functio...

Claims

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Application Information

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IPC IPC(8): H02P6/20H02P9/48
CPCH02P6/20H02P9/48
Inventor W.卡雷罗F-X.伯纳德V.罗马格诺洛R.马尔布兰奎
Owner VALEO EQUIP ELECTRIC MOTEUR
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