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Circuit and associated management method

A management method and circuit technology, applied in the direction of circuits or fluid pipelines, circuit devices, load supply circuits, etc., can solve problems such as harm to users, voltage drop of power supply, failure of low-power components, etc.

Active Publication Date: 2019-11-19
VALEO SYST DE CONTROLE MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this type of circuit is that during the transition phase, powering the high power components causes a voltage drop at the supply source (usually a battery)
Due to this voltage drop, the other components (i.e. the low power components) can no longer be supplied with sufficient voltage for their good operation, so that activation of the high power components can cause failure, or even extinction, of the low power components
[0003] However, in the case of electrical circuits of motor vehicles, the small power components powered by the battery can be safety-related elements (such as headlights) or comfort-related elements (such as car radios), so that their failure can be have a very harmful effect on the user

Method used

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  • Circuit and associated management method
  • Circuit and associated management method
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Embodiment Construction

[0045] In the following description, in a general manner:

[0046] The term "low power components" corresponds to components whose power does not exceed 1 kW;

[0047] The term "high power components" corresponds to components whose power is higher than 1 kW;

[0048] The term "electric booster compressor" corresponds to an electric compressor acting in addition to or instead of a turbocompressor of an engine of a motor vehicle for providing additional power, for example for The response time of the turbo compressor is reduced during low RPM acceleration, for example.

[0049] The term "DC" corresponds to the English abbreviation Direct Current and corresponds to direct current.

[0050] The term "ASIC" corresponds to the English abbreviation of Application Specific Integrated Circuit, and corresponds to an application specific integrated circuit.

[0051] The term "FPGA" corresponds to the Field Programmable Gate Array English abbreviation and corresponds to Field Programm...

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Abstract

The invention relates to a method for managing an electric circuit (1) of a motor vehicle, said circuit comprising: -at least one low power component (11) requiring a minimum operating voltage, -high power component (13), -for all A power supply (3) for at least one small power component and said high power component, the method comprising the steps of: - calculating the voltage induced by powering said high power component (13) from the internal resistance of said high power component drop, - limiting the power of said high power component (13) such that the residual voltage during the voltage drop caused by powering the high power component (13) is higher than or equal to that of said at least one low power component (11) Minimum working voltage.

Description

technical field [0001] The invention relates to the field of power supply circuits, in particular for motor vehicles. Background technique [0002] In particular, the invention relates to a power supply circuit comprising a power supply source intended to power low-power components on the one hand and high-power components transitively on the other hand. A problem with this type of circuit is that, during the transition phase, powering the high power components results in a voltage drop at the supply source, usually a battery. Due to this voltage drop, the other components (ie the low power components) can no longer be supplied with sufficient voltage for their good operation, so that activation of the high power components can cause the low power components to fail, or even go out. [0003] However, in the case of electrical circuits of motor vehicles, the low-power components powered by the battery may be safety-related elements (such as headlights) or comfort-related ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00B60L1/00
CPCB60L1/00H02J7/0063B60R16/03F02B39/10H02J2310/46B60R16/033F02N11/0803H02M3/04
Inventor S.德科斯泰
Owner VALEO SYST DE CONTROLE MOTEUR