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Soft starting system for fuel oil automobile

A soft start and soft starter technology, applied in the field of soft start systems, can solve problems such as the influence of the life of the starter, and achieve the effects of reducing mechanical impact, prolonging service life, and reducing starting noise.

Inactive Publication Date: 2015-07-29
张晓冬 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The instantaneous impact also affects the life of the starter

Method used

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  • Soft starting system for fuel oil automobile
  • Soft starting system for fuel oil automobile
  • Soft starting system for fuel oil automobile

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Embodiment approach

[0013] A preferred embodiment of the present invention: as figure 2 As shown, the associated soft-start control circuit also includes a main control circuit, a drive circuit, a soft-switching IGBT and a sampling protection circuit. Select the IGBT with appropriate voltage, current, and frequency levels to realize the soft on-off of the armature voltage; select the appropriate driver chip to form the drive circuit according to the selected IGBT; select the appropriate main control chip to generate the required PWM pulse signal.

[0014] Working principle: When the electromagnetic switch circuit is turned on, the main control chip receives the instruction and starts to output PWM waveform with gradually increasing duty cycle. After the output PWM waveform is connected with the driving circuit, it drives the IGBT on and off, so as to realize the stable voltage of the car starter motor. rise.

[0015] The above is based on the principle of pulse width modulation technology, such...

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PUM

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Abstract

The invention relates to the technical field of automobiles, in particular to a soft starting system for a fuel oil automobile. The soft starting system comprises a power circuit, an electromagnetic switching circuit, a soft starter and an automobile starting motor and is characterized in that the soft starter is connected between the automobile starting motor and the electromagnetic switching circuit in series; the soft starter adopts DC-DC (Direct Current-Direct Current) transformation so as to control a motor voltage to stably raise to a rated voltage from a minimum starting voltage and a starting torque to raise to a rated torque from a minimum torque. After the soft starting system disclosed by the invention is adopted, the starting noise is greatly reduced in a starting process, the mechanical impact between a driving gear and a flywheel is reduced, and the service life of a battery and a starter is prolonged.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a soft start system for fuel automobiles. Background technique [0002] At present, cars rely on 12V or 24V DC batteries to supply power to the starter, and use a hard start method. During the starting process, there will be a serious howling sound for 1-2 seconds between the driving gear and the speeding. This noise directly affects people's lives. Since the starter adopts a hard start method, the starting current can reach thousands of amperes in an instant, which greatly reduces the service life of the battery. The instantaneous impact also affects the life of the starter. Contents of the invention [0003] In order to overcome the above-mentioned deficiencies in the existing automobile technology and eliminate the serious howling sound during the starting process, the present invention provides a soft start system for a fuel automobile. [0004] The technical scheme...

Claims

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Application Information

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IPC IPC(8): H02P1/18
CPCH02P1/18
Inventor 史丽鑫张晓冬
Owner 张晓冬