Storage battery charging control system and device of storage battery electric engineering vehicle

Abstract

The invention provides a storage battery charging control system and control device of a storage battery electric engineering vehicle. The control device comprises an integrated control conversion switch (1), a network system module (2) in communication connection with the integrated control conversion switch (1), a float charging execution unit (3) and an equalized charging execution unit (4). The network system module (2) determines the work state of the float charging execution unit (3) and the equalized charging execution unit (4) according to the manipulation position of integrated control conversion switch (1). When the integrated control conversion switch (1) is located at different manipulation positions, different IO interfaces of the network system module (2) can be communicated to generate different control signals, also the network system module (2) is employed to control the work state of the float charging execution unit (3) and the equalized charging execution unit (4), centralized independent control of float charging and equalized charging two charging modes can be realized, execution of the two charging modes simultaneously can be prevented, and the storage battery charging safety can be improved.

Description

Technical field [0001] The invention relates to the technical field of rail transit, and in particular to a battery charging control system and device for a battery electric engineering vehicle. Background technique [0002] Because of its low pollution and reliability, battery-powered engineering vehicles have replaced diesel locomotives and are widely used in subway line engineering maintenance and subway vehicle maintenance. In the battery power supply mode, the battery circuit provides direct current to the main circuit load and auxiliary circuit load of the engineering vehicle. [0003] According to different charging methods, battery charging can be divided into floating charging and equalizing charging. Floating charge is to connect the battery pack and the power line in parallel to the load circuit, and the small amount of current supplied by the power line compensates for the local loss of the battery pack, so that it can always be kept in a satisfactory state of charging...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing floating charging operation control button and equalizing charging operation control button are mutually independent buttons, and the floating charging and equalizing charging circuits may be connected during use to cause battery failure, the present invention provides a new battery power Battery charging control system and device for construction vehicle

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