Title:
TIME SYNCHRONIZATION SYSTEM, DOMAIN CONTROLLER AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/078338
Kind Code:
A1
Abstract:
A time synchronization system (100), a domain controller (200), and a vehicle (300). The time synchronization system (100) comprises a slave clock device (30) and a master clock device (20), the slave clock device (30) comprising a slave processor (1), a level conversion unit (2) and a slave PHY chip (3); the slave processor (1) is used to generate a first synchronization frame signal and add a first timestamp to the first synchronization frame signal, and the level conversion unit (2) is used to send the first synchronization frame signal to the master clock device (20); the master clock device (20) comprises a master processor (4) and a master PHY chip (5), the master processor (4) being used to add a second timestamp to the first synchronization frame signal, generate a second synchronization frame signal according to the first synchronization frame signal, and add a third timestamp to the second synchronization frame signal; the master PHY chip (5) is used to send the second synchronization frame signal carrying the second timestamp and the third timestamp to the slave PHY chip (3). The time synchronization system (100) uses the processors (1, 4) in the master and slave clock devices (20, 30) to implement a stamping function and message parsing, and determine a reference clock signal, which reduces complexity and technical difficulty of a chip, and saves chip manufacturing costs.
Inventors:
HU YONG (CN)
YANG DONGSHENG (CN)
WANG HUAN (CN)
WU QIANG (CN)
YANG DONGSHENG (CN)
WANG HUAN (CN)
WU QIANG (CN)
Application Number:
PCT/CN2023/121997
Publication Date:
April 18, 2024
Filing Date:
September 27, 2023
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
H04J3/06; G04G7/00; G06F1/12; H04L7/00
Foreign References:
| CN112838903A | 2021-05-25 | |||
| CN102013931A | 2011-04-13 | |||
| CN101447861A | 2009-06-03 | |||
| CN106708168A | 2017-05-24 | |||
| CN107786293A | 2018-03-09 | |||
| CN108650051A | 2018-10-12 | |||
| CN114629586A | 2022-06-14 | |||
| US20140355629A1 | 2014-12-04 |
Attorney, Agent or Firm:
ZHIFAN & PARTNERS (CN)
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