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Auxiliary starting device of vehicle engine

A starting device and engine technology, which is applied in the direction of engine starting, engine motor starting, engine components, etc., can solve the problems of high cost, large volume, complicated circuit, etc., and achieve long service life, small volume, and low maintenance difficulty Effect

Active Publication Date: 2012-09-26
汤如法
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Secondly, in order to ensure the reliability of the series connection, each supercapacitor must be equipped with a voltage equalizing circuit, which is also the most important thing to pay attention to when using supercapacitors.
In order to reduce the leakage current of the supercapacitor equalizing circuit, an electronic equalizing circuit is generally used. The more supercapacitors are connected in series, the more complex the circuit, the larger the volume, and the higher the cost.

Method used

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  • Auxiliary starting device of vehicle engine
  • Auxiliary starting device of vehicle engine
  • Auxiliary starting device of vehicle engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 It is an auxiliary starting device for a vehicle engine, connected to the battery 1, including a starter 9b mechanically connected to the engine and a starter relay 9a for controlling the rotation of the starter 9b, and other vehicle components 9c are connected in parallel with the starter 9b and the starter relay 9a , the other vehicle components 9c and the starter together constitute the vehicle load 9, and the starter battery 1 is used to supply power to the starter unit and the other vehicle components 9c.

[0040] This auxiliary starting device includes a supercapacitor 3, a conversion circuit and a DC / DC converter 2 for converting a large current into a small current and a variable voltage. The input terminal of the DC / DC converter 2 is connected to the positive pole of the storage battery 1. When the relay 9a is disconnected, the positive pole of the supercapacitor 3 is connected to the output terminal of the DC / DC converter 2, the negative pole ...

Embodiment 2

[0048] Such as image 3 said, image 3 exist figure 2 A relay control unit 10 is added to realize the automatic conversion of the conversion circuit. In the relay control unit 10, a drive relay capable of controlling the first relay normally closed contact 5, the second relay normally closed contact 4 and the first relay normally open contact 6 to act simultaneously, the first node and the starting relay 9a A current detector 8 capable of detecting the current of the starter 9b is connected in series, and the signal terminal of the current detector 8 is connected with a relay control unit 10. When the starter relay 9a is closed, the current detector 8 detects the current of the starter 9b and converts the voltage to send out To the relay control unit 10, the relay control unit 10 instructs the relay to act, and controls the disconnection of the first relay normally closed contact 5 and the second relay normally closed contact 4 and the closing of the first relay normally op...

Embodiment 3

[0055] Embodiment 3 is to increase improvement on the basis of embodiment 2, as image 3 As shown, the auxiliary starting device includes an input pile head for connecting the positive pole of the battery, an output pile head and a negative pole pile head, and the input pile head 23 is the input terminal of the DC / DC converter 2 and the normally closed contact of the first relay. 5 and the common connection portion of the first relay normally open contact 6; the output pile head 24 is the output end of the current detector 8; the negative pole pile head 27 is the second relay normally closed contact 4 and the relay control unit 10 The common connection of the negative pole. As long as the original wire end 25 of the vehicle load 9 leading to the positive pole head of the battery 1 is disconnected from the positive pole head 22 of the battery 1, connect it to the output pile head 24 of this embodiment, and connect the positive pole pole of the battery 1 with a short thick wire....

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Abstract

The invention provides an auxiliary starting device of a vehicle engine, belonging to the technical field of an engine and solving the problems of the prior art that the electric quantity of a storage battery is reduced so that the engine cannot be normally started. The device is connected with the storage battery; the device comprises a starter, a starting relay, a super capacitor, a converting circuit and a DC / DC (Direct Current / Direct Current) converter, wherein an input end of the DC / DC converter is connected with an anode of the storage battery; when the starting relay is switched off, a charging circuit is formed by the super capacitor, the DC / DC converter and a cathode of the storage battery; meanwhile, a preliminary initial starting circuit is formed by connecting the anode of the storage battery with the starting relay and the starter through the converting circuit; the charging circuit and the preliminary initial starting circuit are switched off by the converting circuit when the starting relay is switched on; an anode of the super capacitor is connected with the starting relay through the converting circuit; and a cathode of the super capacitor is connected with the anode of the storage battery through the converting circuit to form a boosting starting circuit. According to the device disclosed by the invention, the starting performance of the engine can be stabilized and improved when voltage of the storage battery is reduced.

Description

technical field [0001] The invention belongs to the technical field of engines, and relates to an engine starting auxiliary device. Background technique [0002] As we all know, the internal DC resistance of the battery changes with the ambient temperature and the environment in which the battery is used, and the output capacity of the battery also changes. Especially in winter when the temperature is below minus 25 degrees, the capacity of the battery drops significantly, resulting in the output voltage of the battery. will also decrease accordingly. In addition, the vehicle load is the equipment that the vehicle has been working, such as air conditioners, audio and lights, etc., which will further cause the storage voltage to drop. [0003] When the engine of an automobile or motorcycle is started, the battery needs to be powered to start the starter motor at first, but the battery voltage drops due to the above-mentioned reasons and causes difficulty in starting. The re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08F02N11/14H02J7/00
Inventor 汤如法汤宇峰许世英
Owner 汤如法
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