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A protection device and method for electric vehicles

A technology for electric vehicles and protection devices, applied in the field of electronics, can solve problems such as reporting overcurrent faults, and achieve the effects of avoiding overcurrent faults, being easy to implement, and having high practical value.

Active Publication Date: 2022-04-05
HUNAN CSR TIMES ELECTRIC VEHICLE
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Problems solved by technology

This makes the air compressor energy supply system (DCAC module) need to overcome the related resistance of the air compressor to output more power when the air compressor is started, so it needs to output a larger current when the voltage platform remains unchanged, thus making the DCAC The module is easy to report an overcurrent fault at the moment of starting

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  • A protection device and method for electric vehicles
  • A protection device and method for electric vehicles
  • A protection device and method for electric vehicles

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Embodiment Construction

[0034] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so that implementers of the present invention can fully understand how the present invention uses technical means to solve technical problems, and achieve the realization process of technical effects and according to the above-mentioned realization process The present invention is implemented concretely. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0035] The air compressor is an important component of the electric vehicle, which is powered by the air compressor energy supply system (DCAC module). Since the electric vehicle vane air compressor works in harsh environments such as high humidity for a long time, its lub...

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Abstract

The invention discloses a protection device and method for an electric vehicle air compressor energy supply system. The method includes: detecting the current state of the air compressor energy supply system; starting a first current limiting mode when the current state is an overshoot state, wherein the air compressor energy supply is reduced in the first current limiting mode The output frequency of the system. According to the device of the present invention, the overcurrent fault of the functional system of the air compressor of the electric vehicle can be avoided, thereby greatly improving the stability and safety of the electric vehicle; compared with the prior art, the device of the present invention is simple in structure, easy to implement, and has the advantages of High practical value and promotion value.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a protection device and method for electric vehicles. Background technique [0002] With the continuous development of electric vehicle technology, electric vehicles are more and more used in the daily production and life of human beings. [0003] The air compressor is an important component of the electric vehicle, which is powered by the air compressor energy supply system (DCAC module). Since the electric vehicle vane air compressor works in harsh environments such as high humidity for a long time, its lubrication system often works abnormally. When the air compressor lubrication system works abnormally, it needs to overcome greater resistance at the moment of starting. This makes the air compressor energy supply system (DCAC module) need to overcome the related resistance of the air compressor to output more power when the air compressor is started, so it needs to output...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L1/00B60L3/00
Inventor 王宇王海斌杨洪波雷代良陈慧民凌岳伦肖小春袁莹莹罗家运贺蕾
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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