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An intelligent charging control method based on electric vehicles

A technology of intelligent charging and control methods, applied in electric vehicle charging technology, electric vehicles, charging stations, etc., can solve problems such as inability to collect status information, damage to personnel and equipment, and inability to achieve battery isolation, to improve convenience and reliability. performance, achieve high-voltage isolation, and expand the scope of application

Inactive Publication Date: 2018-03-16
成都雅力电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The on-board charger can only output rated voltage according to a specific design, which leads to the on-board charger can only be used on a specific voltage platform;
[0004] (2) The existing on-board charger cannot collect the status information of various components in the charging system, and cannot realize the automatic start and stop of the charger and the protection function for the battery;
[0005] (3) The existing on-board charger cannot detect the connection status between the charging device and the on-board charger. When the AC charging gun needs to be pulled out, the charging cannot be stopped in time, which may cause damage to personnel and equipment due to live plugging and unplugging;
[0006] (4) The existing on-board charger cannot isolate the high voltage of the battery from the on-board charger after charging

Method used

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  • An intelligent charging control method based on electric vehicles
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Embodiment

[0030] like figure 1 , 2 As shown, this embodiment provides an electric vehicle-based intelligent charging control method, the control method is based on the electric vehicle on-board charger, and a multi-functional embedded controller based on a single-chip microcomputer is embedded in it. It has CAN2.0 and digital input / output signal interface; 1 digital input channel, which can detect the switching value of the 24-volt system, and the input mode is set to low-end input. This input channel detects the presence of a charging device. 3 digital output channels, which can be configured to output 24V to meet the needs of external drive methods. This output channel is used to control the high-voltage relay (K1, K2) and the start and stop of the fan. 1 CAN communication interface, all of which meet the CAN2.0B protocol, realize the communication between the on-board charger and the BMS, and the communication rate is 250Kb / s~500Kb / s. Specifically, the multifunctional embedded con...

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Abstract

The present invention discloses an electric vehicle-based intelligent charging control method, and mainly solves the problem that intelligent control cannot be achieved by a charger in the prior art. The electric vehicle-based intelligent charging control method is characterized in that a charger detects a connection state of a charging gun by a digital input channel; the charger configures an output voltage by a digital output channel; and the charger communicates with a BMS by a CAN module. The electric vehicle-based intelligent charging control method is simple and convenient to implement, and can achieve intelligent charging control.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle charging control, and in particular relates to an electric vehicle-based intelligent charging control method. Background technique [0002] The on-board charger is loaded on the pure electric vehicle and becomes a bridge between the power battery and the power grid. The power grid provides the power battery with the energy needed for driving the vehicle through the on-board charger. Because the power battery has the characteristics of high voltage, it is necessary to protect the battery and improve the reliability during the charging process. The current on-board charger can no longer meet the needs of practical applications. In the prior art, the function of the pure electric on-board charger is simple: when the charging facility connects electric energy to the input terminal of the on-board charger, the on-board charger starts to work and outputs the rated voltage; When the input volta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00B60L11/18
CPCB60L53/60H02J7/00H02J7/0029Y02T10/70Y02T10/7072Y02T90/12
Inventor 盛旺李红朋朱长明张龙李建刚黄龙
Owner 成都雅力电气有限公司
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