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Starter motor circuit for motor vehicles including means for increasing battery voltage and starter equipped with the same

A battery voltage, motor vehicle technology, applied in the direction of engine starting, engine motor starting, motor generator/starter, etc., can solve problems such as removal and increase, and achieve the effect of improving voltage quality

Active Publication Date: 2016-01-20
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In fact, it has been found that when the battery voltage drops again at the end of this delay after the initial current spike has been rectified by absorbing it, there is a risk that the current through the starter's armature will exceed the range at the voltage gradient level, Subsequent significant increase due to the removal of the resistor limiting the current to the starter circuit

Method used

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  • Starter motor circuit for motor vehicles including means for increasing battery voltage and starter equipped with the same
  • Starter motor circuit for motor vehicles including means for increasing battery voltage and starter equipped with the same
  • Starter motor circuit for motor vehicles including means for increasing battery voltage and starter equipped with the same

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Embodiment Construction

[0029] refer to Figure 1A and 1B , a description is now provided of the starter's first and second circuits 1 and 1', both comprising filter means LPF and corresponding to the first and second embodiments of the invention, respectively.

[0030] Such as Figure 1A and 1B As shown, the circuits of the starters 1 and 1' differ only in the place where the filter device LPF is integrated in the starter power circuit. When the starter is turned on, several hundred amps of power current flow in this power circuit. According to the invention, the power circuit is formed by installing in series the filter means LPF, the electric motor DCM and the starter's power contact CP, which is the starter's electromagnetic contactor EC (also known as the starter's "screw". Conduit") contacts.

[0031] exist Figure 1A In the shown embodiment, the filter device LPF is equipped with a starter, which in this case has the reference numeral 10 and is inserted in the power circuit between the elec...

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Abstract

A starter motor circuit (1) according to the invention comprises a combined structure (10) of a starter motor and means for increasing the battery voltage (LPF). Said means for increasing the battery voltage are designed to prevent battery voltage drops caused by current spikes which occur in the power circuit of the starter motor when power is applied to the starter motor. A starter motor traditionally consists of an electric motor (DCM) and an electromagnetic contactor (EC). According to the invention, the means for increasing the battery voltage are filtering means of the inductive type installed in series with the electric motor in said power circuit and comprising a housing made of magnetic material designed to be inserted in series in said power circuit The primary winding circuit in and the secondary winding circuit installed as a short circuit.

Description

technical field [0001] In general, the invention relates to the field of starters for heat engines in motor vehicles. More specifically, the invention relates to a combined structure of a starter and a device making it possible to increase the voltage at the terminals of the vehicle battery when the starter is switched on. Background technique [0002] When the starter is switched on in order to ensure starting of the vehicle's thermal engine, a substantial demand for current arises, which is close to the level of the starter's short-circuit current, ie a current of about 1000A. This current demand when the starter is switched on then decreases in magnitude with increasing speed of the starter armature, which corresponds to the motor rotor. [0003] This initial current spike corresponds to a consequent decrease in the voltage at the battery terminals. Furthermore, a small voltage drop then occurs during the start-up phase and corresponds to successive passages of the ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N11/08H01F38/00H02P1/04
CPCF02D2041/1432F02N11/08F02N2250/02H01F37/00H02P1/04H01F38/00H02P1/18
Inventor N.拉比
Owner VALEO EQUIP ELECTRIC MOTEUR
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