High-voltage safety controller for electric vehicles
A safety controller and electric vehicle technology, applied in the direction of total factory control, total factory control, electrical program control, etc., can solve the problems of large volume and weight, low reliability and engineering, and incomplete functions, etc., to achieve matching High flexibility, ensuring personal safety, safe and reliable transmission effect
Active Publication Date: 2012-04-18
SHANGHAI HIGH ENERGY AUTO ELECTRONIC CO LTD
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Problems solved by technology
For this reason, many units at home and abroad have carried out research on high-voltage safety control systems for electric vehicles, which can realize functions such as switching on and off high-voltage electricity, but most systems have high costs, incomplete functions, and uncompact structures. The shortcomings of large volume and weight, low reliability and engineering, cannot effectively achieve safety protection, and at the same time bring inconvenience to the matching and installation of the whole vehicle
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[0030] Based on CAN bus and wire control technology, according to the working characteristics of electric vehicles, the high voltage safety controller of the present invention is designed by adopting a modular design method. The controller and the vehicle controller carry out information and command interactive control through the CAN bus or status line, which can monitor the electrical status, on-off status and connection process of the high-voltage circuit in real time, so as to ensure the safety and reliability of the power and electric energy of the vehicle system. transmission; and detect insulation faults, open circuit faults, ground faults, and high-voltage loop faults of the entire high-voltage system at any time, and can immediately output the fault status through the CAN bus or status line and take corresponding actions after discovering abnormal conditions. It can automatically cut off the output of high-voltage electricity under certain circumstances. At the same t...
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The invention relates to a high-voltage safety controller for electric vehicles, the high-voltage safety controller comprises a shell and a circuit board, wherein the circuit board is arranged in the shell, and comprises a singlechip, a power supply module, an A / D (analog / digital) analog signal conditioning circuit, a CAN (controller area network) bus pre-handling circuit, a digital output processing circuit and a digital input processing circuit, wherein the single chip microcomputer is respectively connected with the power supply module, the A / D analog signal conditioning circuit, the CAN bus pre-handling circuit, the digital output processing circuit and the digital input processing circuit. Compared with the prior art, the high-voltage safety controller provided by the invention has the advantages of high integration level, compact structure, small volume, light weight, comprehensive reliable and function, high engineering degree, and the like.
Description
technical field [0001] The invention relates to an automobile controller, in particular to an electric automobile high voltage safety controller. Background technique [0002] The energy crisis and the aggravation of environmental pollution made electric vehicle technology attract the attention of many developed countries around 1990. my country has also carried out research on key technologies of electric vehicles since the "Ninth Five-Year Plan". Electric vehicles refer to vehicles that use electric energy to drive electric motors as power systems in whole or in part, so as to achieve the purpose of energy saving and emission reduction. Commonly used electricity to drive electric vehicles are various batteries, fuel cells, solar cells, etc. A common classification method is to divide electric vehicles into pure electric vehicles, fuel cell vehicles and hybrid electric vehicles. [0003] The power voltage of electric vehicles can be as high as 300V or more. Designing safe...
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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 卓斌马兹林徐权奎冒晓建
Owner SHANGHAI HIGH ENERGY AUTO ELECTRONIC CO LTD