High-voltage loop control device and method for electric automobile

Abstract

The invention discloses a high-voltage loop control device and method for an electric automobile, and belongs to the field of a new energy automobile. The control device comprises a temperature monitoring module, an electric current monitoring module and a control module. Through monitoring the real-time temperature of each of temperature monitoring points in a high-voltage loop, because when the automobile normally travels, a long-time overload current cannot occur in the high-voltage loop circuit, the temperature of each of the temperature monitoring points can be maintained within a set temperature range; when the real-time temperature of any of the temperature monitoring points is higher than the corresponding preset temperature, the situation that the current temperature monitoring point is abnormal is indicated; besides, through monitoring the electric current of a DC bus, when the real-time electric current of the DC bus exceeds a set electric current, the high-voltage loop can be damaged, so that if the output power of a power battery pack is reduced immediately or the high-voltage loop is cut off, the situation that the structure of the high-voltage loop is burn up can be avoided; and during design, a reserved design margin is reduced, and the design cost and the design difficulty are reduced.

Description

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AI Technical Summary

Benefits of technology

This technology monitors how well parts connected to a specific part on your car's electrical system when they get too hot due to heavy use while traveling around with them (the main reason for this issue). It maintains its own temperature inside certain limits based upon what happens if some points show signs like excessive heat buildup caused by increased load) until these temperatures become extreme enough again causing harm to other components on nearby circuits. To protect against burning out, lower the voltage supplied to the electric motor(battery), which reduces costs but also makes things worse because more energy needs to be used compared to regular operation.

Problems solved by technology

This patented describes how electrified cars can get too hot during their operation due to improper connections between different components within these circuits. To prevent this issue, some solutions involve adjusting certain parameters for higher voltages (power) supplied by batteries).

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