公开(公告)号：US20230025174A1

公开(公告)日：2023-01-26

申请号：US17777888

申请日：2020-11-27

Applicant: BYD COMPANY LIMITED

Inventor： Chujun CHEN

IPC: B61L25/02

Abstract: A train door opening determination method includes obtaining a stop threshold, obtaining a cumulative ranging error, and instructing, according to the stop threshold and the cumulative ranging error, a train to open or not to open train doors.

公开(公告)号：US20250108844A1

公开(公告)日：2025-04-03

申请号：US18980912

申请日：2024-12-13

Applicant: BYD COMPANY LIMITED

Inventor： Xi ZHANG ,  Yedi XIAO ,  Chujun CHEN ,  Weihua LIU

IPC: B61L27/20 ,  B61L25/02

Abstract: A train control method, based on a combined coordinate system, includes: obtaining a target combined coordinate system corresponding to a planned train path, the target combined coordinate system comprising a plurality of basic coordinate systems with boundary logic sections, and each of the basic coordinate systems forming a physical link relationship with another basic coordinate system of the basic coordinate systems through the boundary logic sections; obtaining position information of a train located in the planned train path sent by the train, and determining preceding train information of a preceding train preceding to the train based on the position information and the physical link relationships between the basic coordinate systems; and performing a train control strategy on the train based on the preceding train information.

公开(公告)号：US20240425093A1

公开(公告)日：2024-12-26

申请号：US18823798

申请日：2024-09-04

Applicant: BYD COMPANY LIMITED

Inventor： Yang LIAO ,  Chujun CHEN

IPC: B61L7/06 ,  B61L15/00 ,  B61L25/02 ,  B61L27/70

Abstract: A turnout control method is applicable to an object controller and includes the following actions: receiving, within a first time, applications to use a turnout sent by a first train and a second train in sequence; in response to that the first train and the second train are located on opposite sides of the turnout, returning a reply to the second train that the turnout is requisitioned by the first train, to cause the second train to establish a communication connection to the first train based on the reply, to compare running plans of the first train and the second train, and to determine a turnout user for the turnout; and in response to receiving a turnout control command sent by the turnout user, controlling the turnout to perform an action according to the turnout control command.

公开(公告)号：US20250104441A1

公开(公告)日：2025-03-27

申请号：US18975979

申请日：2024-12-10

Applicant: BYD COMPANY LIMITED

Inventor： Meizhu CHEN ,  Chujun CHEN ,  Kaikuo ZHUO ,  Weihua LIU

IPC: G06V20/54 ,  G06V10/74

Abstract: A vehicle detection method includes: acquiring point cloud data of a target detection area and image information of the target detection area; in response to determining, according to the point cloud data, that there is a target vehicle in the target detection area, determining a target vehicle type of the target vehicle according to the point cloud data; determining a target vehicle identifier of the target vehicle according to the image information; and comparing the target vehicle type and the target vehicle identifier with a legitimate-vehicle information database, so as to determine whether the target vehicle is an illegitimate vehicle.

公开(公告)号：US20240239387A1

公开(公告)日：2024-07-18

申请号：US18622288

申请日：2024-03-29

Applicant: BYD COMPANY LIMITED

Inventor： Qiongfang WANG ,  Chujun CHEN ,  Yedi XIAO

IPC: B61L25/02 ,  H04B17/318

CPC classification number: B61L25/028 ,  B61L25/021 ,  H04B17/318

Abstract: A method for train positioning includes: periodically transmitting, by a balise transmission module (BTM), balise data to a vehicle on-board controller (VOBC) according to a rule; periodically receiving, by the VOBC, the balise data transmitted by the BTM, and periodically obtaining a data frame, the data frame comprising a current traveling time tn, a current traveling speed vn, and a current traveling distance sn of a train; and determining, by the VOBC based on the received balise data and the obtained data frame, a location of the train when the train passes a balise.

公开(公告)号：US20230278559A1

公开(公告)日：2023-09-07

申请号：US18144753

申请日：2023-05-08

Applicant: BYD COMPANY LIMITED

Inventor： Weihua LIU ,  Kaikuo ZHUO ,  Chujun CHEN ,  Ruixing TANG ,  Zhili WU

IPC: B60W30/16 ,  B60W30/14 ,  B60W30/09 ,  B60W40/105 ,  B60W40/107 ,  B60W10/18

CPC classification number: B60W30/16 ,  B60W10/18 ,  B60W30/09 ,  B60W30/143 ,  B60W40/105 ,  B60W40/107 ,  B60W2520/105 ,  B60W2554/802

Abstract: A method for controlling a vehicle, includes: acquiring current first vehicle state information of a first vehicle; determining a target vehicle distance according to the current first vehicle state information, where the target vehicle distance includes an inter-vehicle distance between the first vehicle and a second vehicle to enable synchronous control of the first vehicle and the second vehicle; determining a first target operating condition corresponding to the first vehicle according to the target vehicle distance and the current first vehicle state information; and receiving second vehicle operation information transmitted by the second vehicle, and adjusting the inter-vehicle distance to the target vehicle distance by controlling an operation of the first vehicle according to the first target operating condition and the second vehicle operation information.

公开(公告)号：US20250162628A1

公开(公告)日：2025-05-22

申请号：US19033339

申请日：2025-01-21

Applicant: BYD COMPANY LIMITED

Inventor： Meizhu CHEN ,  Kaikuo ZHUO ,  Chujun CHEN

IPC: B61L27/20 ,  B61L27/04

Abstract: A method for controlling a train, includes: detecting whether a communication failure occurs to a target train; in response to detecting that the communication failure occurs to the target train, determining a target failure type of the communication failure; determining a target control strategy of the target train according to the target failure type and a correspondence between a failure type and a control strategy; and controlling traveling of the target train according to the target control strategy.

公开(公告)号：US20240227888A1

公开(公告)日：2024-07-11

申请号：US18609689

申请日：2024-03-19

Applicant: BYD COMPANY LIMITED

Inventor： Yakun SHEN ,  Chujun CHEN ,  Yang LIAO ,  Weihua LIU

IPC: B61L27/20 ,  B61L27/04

CPC classification number: B61L27/20 ,  B61L27/04 ,  B61L2027/204

Abstract: A method for controlling train operation, includes: receiving an instruction indicating permission to enter a train autonomous circumambulation system (TACS) control level; in response to the train satisfies a condition for entering the TACS control level, controlling the train to enter the TACS control level and transmitting a TACS control notification to a ground device in a route section in which the train is located, the ground device communicating with the train through the TACS control notification based on a TACS control level protocol; and operating the train based on the TACS control level.

公开(公告)号：US20240116553A1

公开(公告)日：2024-04-11

申请号：US18542063

申请日：2023-12-15

Applicant: BYD COMPANY LIMITED

Inventor： Chujun CHEN ,  Kaikuo ZHUO ,  Weihua LIU

IPC: B61L27/16 ,  B61L25/02

CPC classification number: B61L27/16 ,  B61L25/021 ,  B61L25/025

Abstract: A method for preventing a turnout conflict of a railway is applicable to a railway controller and includes: receiving a first request from a first train and a second request from a second train for using a turnout within a time period; determining whether a first distance between a current position of the first train and the turnout is equal to a second distance between a current position of the second train and the turnout; and in response to determining that the first distance is equal to the second distance, determining a priority user based on first arrival information of the first train and second arrival information of the second train, where the arrival information includes whether the train arrives at a next parking station on schedule, ahead of schedule, or behind schedule when running at a maximum running speed.

公开(公告)号：US20240116551A1

公开(公告)日：2024-04-11

申请号：US18542112

申请日：2023-12-15

Applicant: BYD COMPANY LIMITED

Inventor： Chujun CHEN ,  Meizhu CHEN

IPC: B61L15/00

CPC classification number: B61L15/0018

Abstract: A method for a degraded train emergency rescue includes: obtaining a communication status of a private communication network that connects a train to a ground system, to a front train, and to a rear train; determining whether the private communication network fails based on the communication status; in response to determining that the private communication network fails, restarting an on-board private network switch of the train; determining whether the private communication network is recovered after the on-board private network switch is restarted; in response to determining that the private communication network is not recovered, starting an on-board public network switch of the train, and establishing public network communication between the train and each of the front train and the rear train; and performing an emergency rescue through a public network.