Detection apparatus for surplus capacity of electric locomotive storage battery

A detection device and remaining capacity technology, applied in the direction of measuring devices, electric vehicles, electric traction, etc., can solve problems such as overcharging, over-discharging of electric locomotive batteries, and impact on the service life of electric locomotive batteries, so as to prolong the service life, Avoid the effects of overcharging and overdischarging

CN103645442AInactive Publication Date: 2014-03-19ZHUZHOU ELECTRIC LOCOMOTIVE CO
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2014-03-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a detection apparatus for a surplus capacity of an electric locomotive storage battery. The detection apparatus is composed of a current acquisition unit, a voltage acquisition unit, a storage battery sampling device and a storage battery controller. A corresponding relation between an internal resistance value of a single storage battery in an internal resistance changing section and a surplus capacity of the single storage battery in the storage battery pack is prestored in the storage battery controller. According to the invention, when the electric locomotive runs and the storage battery pack is discharging, voltages and currents all the single storage batteries are collected; calculation is carried out to obtain internal resistance values of all the single storage batteries; and surplus capacities of all the single storage batteries are searched in the corresponding relation between the internal resistance value and the surplus capacity of the single storage battery. Therefore, detection of the surplus capacity of the storage battery of the electric locomotive is realized; accurate data can be provided for daily repairing and maintenance of the electric locomotive storage battery; phenomena of over charging and over discharging of the electric locomotive storage battery can be prevented; and thus the service life of the electric locomotive storage battery is prolonged.
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Description

Technical field

[0001] The present invention relates to the technical field of electric locomotive batteries, and more specifically, to a detection device for the remaining capacity of electric locomotive batteries. Background technique

[0002] The electric locomotive battery is an important part of the DC power supply system of the electric locomotive. As a backup power source for the DC power supply, it is mainly responsible for the power supply interruption caused by the electric locomotive in the lowered bow state, when the pantograph is off-line or during the movement. Provide a stable, safe and reliable power supply guarantee for the start, control system, monitoring system and communication system of electric locomotives, and ensure the normal operation of important equipment on electric locomotives.

[0003] Commonly used battery charging devices on electric locomotives generally perform equalizing charging and floating charging management for electric locomotive batteries...

Examples

Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] See figure 1 , The embodiment of the present invention discloses a schematic structural diagram of a detection device for the remaining capacity of an electric locomotive battery. The detection device includes: a current collection unit 11, a voltage collection unit 12, a battery sampling device 13 and a battery controller 14;

[0028] among them:

[0029] The current collection unit 11 is connected to the battery pack 01 and is used ...