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Quick double-pistol charging system and method for electric motor coach

A fast charging, electric bus technology, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problem of electric bus power supplementation not being able to be fundamentally solved, and achieve the effect of shortening the charging time

Active Publication Date: 2012-04-04
CHONGQING HENGTONG ELECTRIC BUS POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many related companies have made a lot of efforts in the supplementary power of electric buses, the problem of supplementary power for electric buses has not been fundamentally resolved.

Method used

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  • Quick double-pistol charging system and method for electric motor coach
  • Quick double-pistol charging system and method for electric motor coach
  • Quick double-pistol charging system and method for electric motor coach

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1 As shown, a double-gun fast charging system for an electric bus includes a first charging stand 1 and a second charging stand 2; the first charging stand 1 and the second charging stand 2 are connected to the control system 3 through a CAN bus; The control system 3 is connected to the positive relay 6 of the first charging stand and the positive relay 7 of the second charging stand, and the control system 3 controls the positive relay 6 of the first charging stand and the positive relay 7 of the second charging stand. off; the control system 3 is connected to the negative relay 8 of the first charging stand and the negative relay 9 of the second charging stand, and the control system 3 controls the negative relay 8 of the first charging stand and the negative relay 9 of the second charging stand The on-off of the control system 3 is connected with the first current sensor 10 and the second current sensor 11, and the control system 3 controls th...

Embodiment 2

[0025] Embodiment 2: as figure 2 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is: the control system 3 is connected to the power battery pack 12 through the CAN bus, when the control system 3 detects that the power battery pack 12 is When fully charged, the control system 3 sends a charging end command to the first charging base 1 and the second charging base 2 through the CAN bus, and the first charging base 1 and the second charging base 2 transmit the charging end command to the charger, and the charger ends the charging . When the control system 3 detects that the voltage in the power battery pack 12 exceeds the limit, the pressure difference exceeds the limit, and the temperature exceeds the limit, the control system 3 sends an adjustment command to the charger through the first charging stand 1 and the second charging stand 2, and the charger lowers. total charging current.

Embodiment 3

[0026] Embodiment 3: as image 3 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is: the control system 3 is connected to the power battery pack 12 through the CAN bus, and the control system 3 is connected to the positive main relay 4 and the negative main relay. The relay 5 is connected, and the control system controls the on-off of the positive main relay 4 and the negative main relay 5; the positive pole of the power battery pack 12 is connected with the input end of the positive main relay 4, and passes through the positive pole The output end of the main relay 4 outputs a positive current; the negative pole of the power battery pack 12 is connected to the input end of the negative main relay 5 through the first current sensor 10, and passes through the output end of the negative main relay 5 Output negative current outward, the positive pole of described power battery pack 12 is connected with the input end of prec...

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PUM

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Abstract

The invention discloses a quick double-pistol charging system and method for an electric motor coach, relating to a charging device for an electric car. The quick double-pistol charging system for the electric motor coach comprises a first charging base, a second charging base, a control system, a first charging base positive electrode relay, a second charging base positive electrode relay, a first charging base negative electrode relay, a second charging base negative electrode relay, a first current sensor, a second current sensor and a power battery set, wherein the two current sensors are used to detect the current flowing through the two charging bases; when the current is unequal, a management system controls a charger to timely adjust, so that the charging current is ensured to flow through the two charging bases in a balanced manner, and the current flowing through each charging relay is consistent. The quick double-pistol charging technology solves a problem of large-current balance conduction when the electric motor coach is quickly charged, shortens the charging time, and provides a powerful support for the use and popularization of the electric motor coach.

Description

technical field [0001] The invention relates to a charging device for an electric vehicle, in particular to a double-gun fast charging system and method for an electric passenger car. Background technique [0002] With the advancement of my country's energy-saving and emission-reduction policies, the number of new energy buses will increase, especially pure electric buses driven by electricity, which can effectively reduce my country's consumption of oil resources because they are driven by electricity and do not use fuel. Dependence, the limited oil can be used for more important aspects, and the electric bus has no exhaust gas produced by the internal combustion engine vehicle, and does not produce emission pollution. It is the best product to achieve energy saving and emission reduction in transportation. [0003] At present, electric buses usually use conventional charging methods and quick battery pack replacement methods to complete battery energy supplementation. With...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 代幼文蒋黎明田野
Owner CHONGQING HENGTONG ELECTRIC BUS POWER SYST