A high-voltage capacitor charge discharge system and its control method
A technology of charge discharge and high-voltage capacitors, which is applied to battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of low safety and reliability, and achieve high safety and reliability
Active Publication Date: 2019-11-08
BYD CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to solve the problem of low safety and reliability when high-voltage capacitors on vehicles currently discharge high-voltage charges, the present invention provides a high-voltage capacitor charge discharge system and its control method, which can improve the efficiency of charge discharge in high-voltage capacitors. safety and reliability
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings: when each part is written above, the advantages brought by a certain part can be explained.
[0031] According to one embodiment of the present invention, as Figure 1-2 As shown, a high-voltage capacitor charge discharge system, the system includes: a switching power supply module, a discharge circuit module and a control module; The discharge circuit module is connected to the control module; the control module is connected to the discharge circuit mod...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a high-voltage capacitor charge discharging system, which comprises a switch power source module, a discharging circuit module and a control module, wherein the input end of the switch power source module is connected with a high-voltage capacitor, the low-voltage output end of the switch power source module is respectively connected with the discharging circuit module and the control module, the control module is connected with the discharging circuit module, and the control module is used for controlling the discharging circuit module to discharge charges when a discharging signal or a collision signal is received. The high-voltage capacitor charge discharging system has the advantage that the discharging circuit module is connected with the low-voltage end of the switch power source module to discharge at low voltage, so the safety and reliability of charge discharging in the high-voltage capacitor are improved.
Description
technical field [0001] The invention belongs to the field of high-voltage capacitors, and in particular relates to a high-voltage capacitor charge discharge system and a control method thereof. Background technique [0002] There is a large amount of charge in the high-voltage capacitor of the vehicle. If the charge cannot be discharged quickly, it will cause a certain safety hazard to the vehicle. In the prior art, the methods for quickly discharging the voltage at both ends of the high-voltage capacitor generally include: passive discharge, which discharges multiple high-impedance power resistors in parallel on the high-voltage circuit; the other is active discharge, which is controlled by the controller Simply control one or more switches to discharge the voltage of the high voltage capacitor. [0003] The above-mentioned passive discharge and active discharge are to connect the discharge circuit directly to the high-voltage capacitor to discharge the charge of the high-...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 梁孟东李帅辉张鑫鑫
Owner BYD CO LTD