US 12,353,110 B2
Control method, apparatus and equipment for electrochromic device, and storage medium
Chaoyue Cao, Shenzhen (CN); and Jiazhi He, Shenzhen (CN)
Assigned to SHENZHEN GUANGYI TECH CO., LTD., (CN)
Appl. No. 17/783,257
Filed by SHENZHEN GUANGYI TECH CO., LTD., Shenzhen (CN)
PCT Filed Dec. 14, 2020, PCT No. PCT/CN2020/135999
§ 371(c)(1), (2) Date Jun. 7, 2022,
PCT Pub. No. WO2021/121171, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 201911305034.0 (CN), filed on Dec. 17, 2019.
Prior Publication US 2023/0036063 A1, Feb. 2, 2023
Int. Cl. G02F 1/163 (2006.01); G09G 3/19 (2006.01)
CPC G02F 1/163 (2013.01) [G09G 3/19 (2013.01); G09G 2330/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A control method for an electrochromic device, comprising:
determining whether a current transmittance of the electrochromic device reaches a preset transmittance;
in response to determining that the current transmittance of the electrochromic device does not reach the preset transmittance, controlling an external power supply to perform a first mode charging and discharging on the electrochromic device until the current transmittance of the electrochromic device reaches the preset transmittance;
in response to determining that the current transmittance of the electrochromic device reaches the preset transmittance, suspending the charging and discharging, and continuously monitoring whether a current open circuit potential of the electrochromic device is within a preset open circuit potential threshold range; and
in response to the current open circuit potential of the electrochromic device being not within the preset open circuit potential threshold range, controlling the external power supply to perform a second mode charging and discharging on the electrochromic device to enable the current open circuit potential of the electrochromic device to be continuously within the preset open circuit potential threshold range;
wherein in response to the current open circuit potential of the electrochromic device being not within the preset open circuit potential threshold range, controlling the external power supply to perform the second mode charging and discharging on the electrochromic device to enable the current open circuit potential of the electrochromic device to be continuously within the preset open circuit potential threshold range comprises:
determining whether a current open circuit potential of the electrochromic device is higher than a preset balance potential of the electrochromic device;
in response to determining that the current open circuit potential of the electrochromic device is higher than the preset balance potential, continuously monitoring the current open circuit potential of the electrochromic device; in response to the monitored current open circuit potential of the electrochromic device being higher than an upper limit of the preset open circuit potential threshold range, stopping the charging; and in response to the monitored current open circuit potential of the electrochromic device being lower than a lower limit of the preset open circuit potential threshold range, adopting the second mode for the charging until the current open circuit potential reaches the upper limit of the preset open circuit potential threshold range; and
in response to determining that the current open circuit potential of the electrochromic device is not higher than the preset balance potential, continuously monitoring the current open circuit potential of the electrochromic device; in response to the monitored current open circuit potential of the electrochromic device being lower than the lower limit of the preset open circuit potential threshold range, stopping the discharging; and in response to the monitored current open circuit potential of the electrochromic device being higher than the upper limit of the preset open circuit potential threshold range, adopting the second mode for the discharging until the current open circuit potential reaches the lower limit of the preset open circuit potential threshold range.