Overcurrent detection method, overcurrent protection method, computer equipment and storage medium
An over-current detection and over-current protection technology, applied in safety/protection circuits, vehicle energy storage, measurement devices, etc., can solve problems such as increasing power consumption and increasing circuit complexity, and achieve simplified circuit complex problems and good detection results Effect
Active Publication Date: 2019-12-06
恒大恒驰新能源汽车研究院(上海)有限公司
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Problems solved by technology
[0004] During the charging process, the charging device needs to take over-current protection measures. At present, to detect the current charging current, it is necessary to add an additional detection circuit to the charging device, which increases the complexity of the circuit and increases the power consumption.
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[0035] Hereinafter, various embodiments of the present invention will be described more fully. The invention is capable of various embodiments, and adaptations and changes are possible therein. It is to be understood, however, that there is no intent to limit the various embodiments of the present invention to the particular embodiments disclosed herein, but the invention is to be construed to cover those within the spirit and scope of various embodiments of the present invention. All adjustments, equivalents and / or alternatives.
[0036] Hereinafter, the term "comprising" or "may include" that may be used in various embodiments of the present invention indicates the existence of disclosed functions, operations or elements, and does not limit the existence of one or more functions, operations or elements. Increase. In addition, as used in various embodiments of the present invention, the terms "comprising", "having" and their cognates are only intended to represent specific ...
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The invention provides an over-current detection method. The method comprises the following steps: receiving a PWM signal; identifying a preset level signal of the PWM signal; acquiring a current charging current according to the preset level signal, and determining an overcurrent threshold according to the PWM signal; and comparing a current charging current with the over-current threshold, and generating and sending an over-current level signal according to a comparison result. The over-current detection method can be used for accurately detecting whether the current charging current is over-current or not in the charging process. In addition, the invention further provides an overcurrent protection method, computer equipment and a computer readable storage medium.
Description
technical field [0001] The present invention relates to the field of electric vehicle charging control, and specifically, mainly relates to an overcurrent detection method and an overcurrent protection method, as well as computer equipment and computer storage media. Background technique [0002] With the continuous improvement of the level of technology and people's living standards, more and more people start to buy cars to improve the convenience of life and improve the quality of life. However, due to the continuous increase of vehicle capacity, the emission of vehicle exhaust has brought a greater impact on the ecological environment. In order to improve the deteriorating ecological environment, electric vehicles have emerged as the times require. Electric vehicles provide energy to drive vehicles through electricity, and will not produce vehicle exhaust during driving, which has a great effect on reducing vehicle exhaust and improving environmental pollution. [0003]...
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Login to View More IPC IPC(8): H02J7/00B60L53/62B60L53/66G01R19/165
CPCH02J7/0031B60L53/66B60L53/62G01R19/16542Y02T90/16Y02T10/70Y02T10/7072Y02T90/12
Inventor 雷贵州李政王乐永周怀俊张小龙
Owner 恒大恒驰新能源汽车研究院(上海)有限公司