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Protecting device and method for electric car

An electric vehicle, current state technology, applied in the field of electronics, can solve problems such as reporting overcurrent faults, and achieve the effects of avoiding overcurrent faults, high practical value, and improving stability and safety

Active Publication Date: 2019-05-31
HUNAN CSR TIMES ELECTRIC VEHICLE
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  • Abstract
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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

Method used

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  • Protecting device and method for electric car
  • Protecting device and method for electric car
  • Protecting device and method for electric car

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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 protecting device and method for an electric car air compressor energy supply system. The method comprises the steps that the current state of the air compressor energy supply system is detected; when the current state is in an uprush state, a first current limiting mode is enabled, wherein the output frequency of the air compressor energy supply system is lowered in thefirst current limiting mode. According to the device, over-current faults of the electric car air compressor function system can be avoided, and therefore the stability and safety of an electric car are greatly improved; compared with the prior art, the device is simple in structure and easy to obtain and has the high practical value and popularization 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 Applications(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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