A high-voltage safety monitoring system and control method
A high-voltage safety and monitoring system technology, applied in electric vehicle charging technology, climate sustainability, vehicle components, etc., can solve problems such as hidden safety hazards, inability to guarantee operation safety, performance degradation, etc., to eliminate potential safety hazards and improve elimination efficiency. , the effect of optimizing the energy distribution strategy
Active Publication Date: 2020-08-14
ZHONGTONG BUS HLDG
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Problems solved by technology
At the same time, with the continuous operation of electric vehicles in the whole life cycle, the performance of high-voltage components or connection nodes will be degraded to varying degrees, and the operation safety in the whole life cycle cannot be guaranteed.
Under certain trigger conditions, it may cause safety hazards
At present, there are few relevant systems that conduct comprehensive and life-cycle security monitoring on this issue
Method used
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Embodiment Construction
[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0036] Such as figure 1 A high-voltage safety monitoring system is shown, including a high-voltage safety monitoring device, current sensors A~F, voltage acquisition circuits 1~n, high-voltage contactors K1~K4, high-voltage fuses FU1~Fun, and current-carrying terminal temperature sensors ①~n , Ambient temperature sensor.
[0037] Such as figure 2As shown, the high-voltage safety monitoring device includes a microcontroller, a signal acquisition module, an AD conversion module, a power supply module, a communication module, an insulation detection module, and a drive module. The micro-controller is the control center of the high-voltage safety monitoring device and is used for calculation and control of electric signals. The micro-controller is connected with AD conversion module, power supply module, communication module, insulation detection module ...
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The invention discloses a high-voltage safety monitoring system and a control method. The invention considers the potential safety hazards of the high-voltage circuit of an electric vehicle, and performs safety monitoring on each component and working state in the high-voltage circuit, including high-voltage contactor state monitoring, high-voltage fusing Monitoring of device status, high-voltage node temperature monitoring, high-voltage ambient temperature monitoring, instantaneous power monitoring of high-voltage current-carrying branches, and insulation status monitoring. By monitoring these states and combining their attributes and characteristics, a control method for monitoring abnormalities is put forward to realize a more comprehensive and scientific management of the high-voltage safety of the vehicle, which can help vehicle users have a comprehensive understanding of the high-voltage safety of vehicles and timely grasp the latest information. Check the working status of the vehicle, detect abnormalities in time, and eliminate possible safety hazards in the bud. At the same time, it can help vehicle developers fully understand various data parameters of the vehicle, and has great guiding significance for the optimization and improvement of vehicle design.
Description
technical field [0001] The invention relates to a high-voltage safety monitoring system and a control method, belonging to the field of electric vehicles. Background technique [0002] High voltage safety is the key to the safety of electric vehicles. As the number of electric vehicles in my country increases year by year, the safety problems exposed have gradually attracted people's attention. Relevant national departments have also issued important documents to indicate the importance of safety issues in the entire industry chain and life cycle of new energy vehicles, and strive to ensure their safety. [0003] There are many components and connection nodes in the high-voltage system, and the failure of each component or node will threaten the safety of the vehicle. Such as contactors, fuses, terminals, connectors (high-voltage wire harnesses, copper bars, high-voltage connectors, terminals, etc.). At the same time, with the continuous operation of electric vehicles in ...
Claims
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IPC IPC(8): B60L3/00
CPCB60L3/0023Y02T90/16
Inventor 囤金军刘涛徐彪范志先王波魏琳魏洋洋
Owner ZHONGTONG BUS HLDG