Power converter for electric vehicle
A technology of power converters and electric vehicles, which is applied in the field of electric vehicles, can solve the problems of large power consumption and insufficient mileage, and achieve the effect of solving large power consumption, wide application range, and simple and novel structure
Inactive Publication Date: 2012-10-03
ANHUI ZHENGMIN VEHICLE IND
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- Application Information
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Problems solved by technology
Traditional electric vehicles consume a lot of power and have insufficient mileage
Method used
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[0008] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0009] Such as figure 1 As shown, an electric vehicle power converter is connected to the battery and is composed of a main control circuit unit, a push-pull boost circuit unit, a voltage and current processing unit, and a voltage stabilization sampling unit. The main control circuit unit sends out a frequency of The oscillating frequency of 40kHz is used to drive the subsequent push-pull boost circuit unit. The push-pull boost unit outputs a DC voltage of 85V, which is sampled and adjusted by the voltage stabilization sampling unit and then sent to the voltage and current processing unit for secondary sampling signals. The error is relatively amplified, and the compared error amplified signal is sent to the main control chip of the main control...
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The invention discloses a power converter for an electric vehicle, and relates to the technical field of electric vehicles. The power converter is connected to a storage battery and characterized by consisting of a main control circuit unit, a push-pull type boosting circuit unit, a voltage and current processing unit and a voltage stabilization sampling unit, wherein the main control circuit unit sends an oscillation frequency of 40 KHZ to push the later-stage push-pull type boosting circuit unit; the push-pull type boosting circuit unit outputs direct current voltage of 85 V; the direct current voltage is sampled and adjusted by the voltage stabilization sampling unit and sent to the voltage and current processing unit for comparing and amplifying a sampled signal error for the second time; the error amplification signal obtained by comparison is sent to a main control chip of the main control circuit unit; the signal sent to the main control chip is adjusted; and the output voltage is stable 50 V. The power converter is simple and novel in structure; during assembly of a group of batteries, the continuous mileage of the power converter can be increased by 80 percent, so that the problems of high power consumption and short continuous mileage of the conventional electric vehicle are effectively solved; and the power converter can be applied to electric bicycles, electric tricycles and electric vehicles and is wide in application range.
Description
technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle power converter. Background technique [0002] As an environmentally friendly, clean, and important energy source with high conversion rate, electricity is widely used in production and life. Electricity is used as an application to drive the replacement of vehicles, promote the low-carbon development of the transportation industry, reduce transportation costs, and save energy. , Protecting the environment is one of the important research topics in the world. After decades of development, it has been applied in electric urban public transport vehicles, factory and mine electric transport vehicles, electric urban sanitation cleaning vehicles, engineering, tunnels, special vehicles for subway construction, etc. Many fields. Electric vehicles have the advantages of strong applicability, mobile recording, simple maintenance, convenient maintenance, and ...
Claims
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Login to View More IPC IPC(8): H02M3/00B60L11/18
CPCY02T10/7005Y02T10/70
Inventor 周晔张永光
Owner ANHUI ZHENGMIN VEHICLE IND