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Electric vehicle power supply control device

A technology for power supply control and electric vehicles, applied in battery circuit devices, electric vehicles, circuit devices, etc., can solve the problems of high price and general consumer acceptance, and achieve the effect of increasing manufacturing costs

Active Publication Date: 2018-04-27
KYMCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the aforementioned power supply control device ensures the successful completion of the pre-charging mode, the DC voltage converter 31 is a converter of special specifications, which is expensive and cannot be accepted by ordinary consumers. Therefore, the known electric vehicle power supply control device needs to be further improved.

Method used

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  • Electric vehicle power supply control device
  • Electric vehicle power supply control device

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Embodiment Construction

[0024] Please refer to figure 1 versus figure 2 As shown, the present invention includes a battery module 11, a DC voltage converter 12, a switching element 13, and a control module 14.

[0025] The battery module 11 can provide a first DC voltage (for example, 48V) as the working voltage of the electric vehicle. The input terminal of the DC voltage converter 12 is connected to the output terminal of the battery module 11 to receive the first DC voltage, convert the first DC voltage into a second DC voltage (for example, 12V), and then output it from the output terminal. The input terminal of the DC voltage converter 12 can be connected to the first capacitor C1, and the output terminal of the DC voltage converter 12 includes a positive output pin V+ and a ground pin GND. The switch element 13 can be a relay, and has a coil 131 and an induction switch 132. The induction switch 132 is actuated by the excitation of the coil 131. The coil 131 is connected to the output of the cont...

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PUM

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Abstract

A power supply control unit for electric vehicles comprises a battery module, a DC voltage converter, a switching element and a control module; the battery module provides first DC voltage and executes a pre-charging mode and a powering mode in succession when an electric vehicle starts up; the DC voltage converter is used for converting the first DC voltage into second DC voltage; the switching element is serially connected between the output end of the DC voltage converter and a load; the control module controls the switching element to break when the battery module executes the pre-charging mode and controls the switching element to make when the battery module executes the powering mode, so that the load can receive the second DC voltage from the DC voltage converter and that smooth startup of the electric vehicle is ensured.

Description

Technical field [0001] The invention relates to an electric vehicle power supply control device, in particular to an electric vehicle power supply control device that performs a precharge function and ensures the smooth start of the electric vehicle. Background technique [0002] Please refer to Figure 5 As shown, the known electric vehicle power supply control device mainly includes a battery module 20 and a DC voltage converter 21. The battery module 20 mainly includes a battery 200, a first switch 201, a second switch 202 and a resistor 203. The battery 200 provides a first DC voltage, the resistor 203 and the first switch 201 are connected in series between the battery 200 and the input terminal of the DC voltage converter 21, and the input terminal of the DC voltage converter 21 is then connected to a capacitor C, The output end of the DC voltage converter 21 is connected to a load 22 such as headlights, indicator lights, or electronic meters of the electric vehicle. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0068
Inventor 纪顺得郑仁杰
Owner KYMCO
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