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Electric circuit for motor vehicle

A motor vehicle and circuit technology, which is applied in the field of vehicles, especially in the circuit field of motor vehicles, can solve the problems of unprotected converters, device volume and cost loss, etc.

Inactive Publication Date: 2015-08-12
TECHNOBOOST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] - When the battery is reversed, the converter is not protected in terms of current, and adding a power diode device on the input of the regulating device will cause a loss in size and cost of the device

Method used

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  • Electric circuit for motor vehicle
  • Electric circuit for motor vehicle
  • Electric circuit for motor vehicle

Examples

Experimental program
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Embodiment Construction

[0043] exist figure 1 In the embodiment shown, the circuit CE comprises an input stage EE, an output stage ES and a regulating device 5 arranged between the input stage EE and the output stage ES.

[0044] The input stage EE comprises: a main electrical energy store 1 such as an electrochemical cell, a starter 2 , an electrical generator such as an alternator 3 .

[0045] Without distinction, the alternator 3 may be a conventional alternator providing a constant voltage, an alternator whose output voltage can be manipulated or a reversible alternator.

[0046] The battery 1 , starter 2 and alternator 3 are installed in parallel between the same reference potential M (hereinafter denoted by the term "earth pole") and a common node E.

[0047] A node refers to a common point between several branches of a circuit and thus at the same potential.

[0048] The output stage ES comprises: a control module 6 of the engine computer ECU (Engine Control Unit) type and a load 8 .

[004...

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PUM

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Abstract

The invention relates to an electric circuit (CE) for a motor vehicle, comprising a first electric power storage element (1), a current generator (3) connected in parallel with the first electric power storage element (1) between a reference potential (M) and a first node (E) of the circuit (CE), a vehicle on-board network (RDB) comprising at least one electric power consumption member (8) mounted between a first node (S) of the circuit (CE) and the reference potential (M), a voltage regulator (5) mounted between the first node (E) and the second node (S), comprising an inlet terminal connected to the first node (E) and comprising an outlet terminal connected to the second node (S). The circuit is characterised in that the regulator comprises a by-pass switch (10) mounted in series between the first and second nodes (E and S) corresponding to the inlet (E) and outlet (S) terminals of the regulator (5), said by-pass switch including a switch (K) and a diode (D) mounted in parallel on the switch (K) and extending from the inlet terminal (E) to the outlet terminal (S) of the regulator (5). The circuit is also characterised in that the regulator (5) comprises a reversible DC-DC converter (11) mounted in series with a second electric power storage element (12), said converter being connected to the outlet terminal (S) of the regulator (5) and the second electric power storage element (12) being connected to the reference potential (M).

Description

[0001] priority statement [0002] This application claims priority from French application 1258081 filed on August 29, 2012, the content of which (description, drawings and claims) is incorporated herein by reference. technical field [0003] The invention relates to an electrical circuit of a vehicle, in particular a motor vehicle, and more particularly to a voltage and current regulation device for an on-board network of the vehicle. Background technique [0004] Some voltage supply circuits include a generator of voltage and current, such as an alternator, and an electrical energy storage module, such as a battery, and are responsible for permanently or switchingly supplying voltage to one or more electrical components . This is the case, for example, of on-board networks of motor vehicles. [0005] Furthermore, the advent of steered alternators has prompted the development of output voltage modulation strategies in order to gain substantial benefits from the consumpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34H02J7/14B60R16/033B60R16/04H02M3/10
CPCY02T10/7022H02J1/06H02J7/345B60R16/033H02J7/1423H02J2310/46Y02T10/70
Inventor B·布克利E·皮戈H·佩瑟瓦尔S·达克鲁斯佩雷拉
Owner TECHNOBOOST