Title:
BATTERY EQUALISATION AND SAMPLING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/129884
Kind Code:
A1
Abstract:
A battery equalisation and sampling method, comprising: step 1: acquiring a system level voltage sampling total period Ta (11); step 2: determining an ADC voltage sampling time Tb and a filter capacitance stable decoupling time Tc (13); step 3: calculating an allowed battery voltage equalisation starting time Td, the formula being: Td＝Ta-Tb-Tc (15); and step 4: on the basis of Tc, Tb, and Td, formulating a switch policy, and planning a sequential cycle of a decoupling period, a sampling period, and an equalisation period (17). Compared to the prior art, by means of redistributing the total period of voltage sampling, the present method separately implements periods of sampling, equalisation, and stabilisation whilst meeting client sampling time requirements, avoiding voltage detection errors during battery equalisation, improving detection precision, and being suitable for simultaneous battery equalisation and sampling detection in hybrid automobiles.
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Inventors:
DU JI MING (CN)
CHENG YONG (CN)
ZHAO ANG (CN)
CHENG YONG (CN)
ZHAO ANG (CN)
Application Number:
PCT/CN2017/092323
Publication Date:
July 19, 2018
Filing Date:
July 09, 2017
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN102195310A | 2011-09-21 | |||
| CN103311991A | 2013-09-18 | |||
| CN104617612A | 2015-05-13 | |||
| CN105620291A | 2016-06-01 | |||
| US20110101986A1 | 2011-05-05 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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