PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator

A technology for automotive generators and generator voltage, applied in the direction of controlling generators, control systems, electrical components, etc., can solve the problems of expensive, difficult generator and PCM two-way communication functions, etc., to prolong life, save vehicle energy, The effect of reducing fuel consumption

Active Publication Date: 2014-08-27
锦州万得汽车电器电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, on the one hand, it is difficult for domestic manufacturers to realize the two-way communication function between the generator and PCM; on the other hand, foreign manufacturers use integrated circuits to realize similar functions, but the price is expensive
These types of systems have limitations

Method used

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  • PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator
  • PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator
  • PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator

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Experimental program
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Embodiment Construction

[0046] The specific process of the PCM-based control automobile generator voltage regulation method is as follows:

[0047] 1. Digital-analog hybrid circuit

[0048] A power supply system of a motor vehicle includes an alternator 3 , a rectifier diode 4 , an excitation coil 5 , a voltage regulator 1 , and a PCM (power take-off control unit) 2 . The voltage regulator 1 is a central processing unit 101 used to provide signal acquisition and processing functions, and a voltage sampling circuit 102 connected to the central processing unit 101 to check the voltage between the positive pole and the negative pole of the battery 6. The regulator 1 and PCM2 are composed of a communication module 103 providing bidirectional information flow, an excitation control circuit 104 and a speed sampling circuit 105, and has a generator output terminal B+, a battery terminal S, a load indicating terminal LI, a receiving control terminal RC, and a phase The terminal P, the excitation terminal F,...

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Abstract

Disclosed are a PCM (pulse-code modulation) control based automotive generator voltage regulation method and a PCM control based automotive generator voltage regulator. The voltage regulator comprises a central processing unit, a voltage sampling circuit, a communication module, an excitation control circuit and a rotational speed sampling circuit, wherein the voltage sampling circuit, the communication module, the excitation control circuit and the rotational speed sampling circuit are respectively connected with the central processing unit, the voltage sampling circuit is used for checking storage batteries, and the communication module is used for providing bidirectional information flow for the voltage regulator and PCM. The voltage regulation method includes the steps of RC activation or self-starting, voltage monitoring and control after PCM activation, load feedback and failure warning. By the aid of the voltage regulation method and the voltage regulator, voltage regulation, high-low voltage warning, PCM communication, PCM activation and self-starting, load indicating feedback and failure feedback warning are achieved, control of a Vset value of a generator by PCM can be realized, a more proper idling speed is set, the service life of the storage batteries can be prolonged, idling speed stability and engine performance can be improved, and reliability of the alternating-current generator and an engine are enhanced.

Description

technical field [0001] The invention relates to a method for adjusting the voltage of an automobile generator based on PCM control, which can realize the control of the automobile generator by the automobile PCM, execute the voltage adjustment information sent by the PCM, and take into account the adjustment function of the automobile generator without automobile PCM control, and is suitable for Charging system for premium cars. Background technique [0002] The alternator provides the voltage for the car's electrical system and charges the battery. When the motor drives the rotor, the magnetic field rotates, creating an AC voltage in the stator windings, which is converted to DC by the rectifier and supplied to the electrical system to which the battery is connected. The voltage regulator adjusts the output voltage of the generator by adjusting the excitation current of the alternator. During operation, when the system voltage drops, the voltage regulator increases the ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/48
Inventor 程英伟韩伟涛张玉生
Owner 锦州万得汽车电器电子科技有限公司
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