Title:
ANTI-INTERFERENCE PROCESSING METHOD DURING DETECTION OF CP SIGNALS BY VEHICLE-MOUNTED CHARGER
Document Type and Number:
WIPO Patent Application WO/2019/062085
Kind Code:
A1
Abstract:
An anti-interference processing method during detection of CP signals by vehicle-mounted charger, comprising the following steps: step 1, capturing CP signals; step 2, determining whether the CP signals satisfy a preset pulse width, and reserving qualified CP signals satisfying the preset pulse width; step 3, performing amplitude limiting on the frequencies of the qualified CP signals; step 4, performing average filtering on the amplitude-limited frequencies to obtain smooth sampling frequency values; step 5, performing low-pass filtering on the smooth sampling frequency values; step 6, determining whether the frequency values of the CP signals satisfy Chinese standard requirements, if not, ending the capture, and if yes, calculating a duty cycle so as to continue to perform the next step; and step 7, performing low-pass filtering on the calculated duty cycle to obtain a final CP signal, and ending the capture. By means of the method, a stable CP signal can still be detected while CP signals are severely interfered.
Inventors:
LIU JUN (CN)
FENG YINGYING (CN)
ZHENG BIWEI (CN)
FENG YINGYING (CN)
ZHENG BIWEI (CN)
Application Number:
PCT/CN2018/083747
Publication Date:
April 04, 2019
Filing Date:
April 19, 2018
Export Citation:
Assignee:
SHENZHEN VMAX POWER CO LTD (CN)
International Classes:
G01R29/02
Foreign References:
| CN107478912A | 2017-12-15 | |||
| CN106208182A | 2016-12-07 | |||
| CN107064653A | 2017-08-18 | |||
| CN205246841U | 2016-05-18 | |||
| CN105375572A | 2016-03-02 | |||
| US20030016003A1 | 2003-01-23 |
Attorney, Agent or Firm:
SHENZHEN KANGHONG INTELLECTUAL PROPERTY AGENT CO., LTD (CN)
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