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Method for assisting diesel locomotive to start diesel engine with super capacitor

A technology for supercapacitors and diesel locomotives, which is applied in the direction of motor starting for engines, starting of engines, machines/engines, etc. It can solve the problems of high battery capacity requirements and relatively large impact on battery life, so as to reduce deep discharge process, The effect of shortening the starting time and increasing the service life

Active Publication Date: 2015-12-09
CRRC QISHUYAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way of starting, the battery must be deeply discharged at the moment when the diesel engine starts to rotate, which requires a high capacity of the battery, and the large current discharge of the battery has a great impact on the life of the battery.

Method used

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  • Method for assisting diesel locomotive to start diesel engine with super capacitor

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Embodiment

[0021] Embodiment: When the diesel engine starts to start, the knife switch 2 of the battery 1 is closed first, and the locomotive control circuit allows the lubricating oil pump contactor 6 to be closed when the starting conditions are met, and the starting lubricating oil pump motor 7 is energized to start working, and at the same time, the locomotive automatically The control system controls the charging contactor 11 to close to charge the supercapacitor 10. The charging circuit of the supercapacitor 10 includes: the positive pole of the battery 1, the supercapacitor 10, the charging contactor 11, the charging resistor 12, the knife switch 2 and the battery 1 the negative pole. After the pre-lubrication of the diesel engine is finished, the locomotive automatic control system disconnects the lubricating oil pump contactor 6. At this time, the charging contactor 11 is disconnected earlier than the lubricating oil pump contactor 6 to prepare for the starting of the diesel engi...

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PUM

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Abstract

A method of using a super capacitor to assist a diesel locomotive in electrically starting a diesel engine comprises the following steps: connecting a storage battery (1), simultaneously starting a lubricating oil pump motor (7) and a super capacitor (10), successively shutting down the super capacitor (10) and the lubricating oil pump motor (7), powering on a starter motor (5) to make a diesel engine run, and powering off the starter motor (5), and completing startup of the diesel engine. The method can shorten the startup time of the diesel engine, and prolong the service life of the storage battery.

Description

technical field [0001] The invention relates to the technical field of diesel engine starting, in particular to a method for assisting a diesel locomotive in diesel engine electric starting by a supercapacitor. Background technique [0002] At present, most of the electric starting of the diesel engine of diesel locomotives uses the battery to supply power to the DC starter motor. Normal operation, at this time stop the DC starter motor power supply, the diesel engine start is completed. In this way of starting, the battery must be deeply discharged at the moment when the diesel engine starts to rotate, which requires a higher capacity of the battery, and the large current discharge of the battery has a greater impact on the life of the battery. Contents of the invention [0003] In order to overcome the deficiency that the existing diesel engine starting technology has high requirements on the storage battery and affects the service life of the storage battery, the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N11/08
CPCF02N11/0866F01M5/02
Inventor 吴宏军芮孟寨黄敬云柴永泉
Owner CRRC QISHUYAN CO LTD