Autonomous driving control system and control method and device

Patent metadata

Field	Value
Publication number	US-12145607-B2
Application number	US-202217846292-A
Country	US
Kind code	B2
Filing date	Jun 22, 2022
Priority date	Dec 23, 2019
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

An autonomous driving control system comprises a main controller, a backup controller, main execution apparatuses and backup execution apparatuses. The backup controller is configured to decompose, when receiving a main control instruction from the main controller, the main control instruction to obtain backup control instructions corresponding to the backup execution apparatuses respectively, and send the backup control instructions to the backup execution apparatuses correspondingly; and the control system is configured to control, when detecting that an abnormality occurs in any one device of the main execution apparatuses, the backup execution apparatus corresponding to the device in which the abnormality has occurred to execute a corresponding backup control instruction. The system can solve the problem that an autonomous driving control system cannot operate normally when any controller or actuation mechanism fails at a single point.

First claim

The invention claimed is:

1. An autonomous driving control system, applied to a control device comprising a processor and a memory, the memory storing at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set being loaded and executed by the processor, and the autonomous driving control system comprising a control apparatus and an execution apparatus, the control apparatus comprising a main controller and a backup controller, the execution apparatus comprising main execution apparatuses and backup execution apparatuses, the main execution apparatuses at least comprising a main steering controller and a main braking controller, and the backup execution apparatuses at least comprising a backup steering controller corresponding to the main steering controller and a backup braking controller corresponding to the main braking controller, wherein
the backup controller is configured to decompose, when receiving a main control instruction from the main controller, the main control instruction to obtain backup control instructions corresponding to the backup execution apparatuses respectively, and send the backup control instructions to the backup execution apparatuses correspondingly; and
the control system is configured to control, when detecting that an abnormality occurs in any one device of the main execution apparatuses, the backup execution apparatus corresponding to the device in which the abnormality has occurred to execute a corresponding backup control instruction,
the backup control instructions comprise a backup steering control instruction and a backup braking control instruction; and
the backup controller is further configured to send the backup steering control instruction to the backup steering controller, and send the backup braking control instruction to the backup braking controller,
the backup steering controller is configured to respond to, when not receiving a control instruction of the main steering controller in a preset period, the backup steering control instruction; and
the backup braking controller is configured to respond to, when not receiving a control instruction of the main braking controller in a preset period, the backup braking control instruction.

2. The autonomous driving control system according to claim 1 , wherein the main steering controller is configured to send, when the control system detects that an abnormality occurs in any one device of the main controller and the main steering controller, a first response control instruction to the backup steering controller, the first response control instruction being used for instructing the backup steering controller to respond to the backup steering control instruction; and
the main braking controller is configured to send, when the control system detects that an abnormality occurs in any one device of the main controller and the main braking controller, a second response control instruction to the backup braking controller, the second response control instruction being used for instructing the backup braking controller to respond to the backup braking control instruction.

3. The autonomous driving control system according to claim 2 , wherein the main steering controller is further configured to send, when the control system detects that the abnormality occurs in any one device of the main controller and the main steering controller, the first response control instruction to the backup steering controller on the basis of a preset abnormal trigger condition; and
the main braking controller is further configured to send, when the control system detects that the abnormality occurs in any one device of the main controller and the main braking controller, the second response control instruction to the backup braking controller on the basis of the preset abnormal trigger condition, the second response control instruction being used for instructing the backup braking controller to respond to the backup braking control instruction.

4. The autonomous driving control system according to claim 1 , wherein the backup steering controller is configured to respond to, when detecting that communication with the main steering controller is interrupted, the backup steering control instruction; and
the backup braking controller is configured to respond to, when detecting that communication with the main braking controller is interrupted, the backup braking control instruction.

5. The autonomous driving control system according to claim 1 , wherein the control system is specifically configured to detect whether a failure occurs in any one device of the main controller, the main steering controller and the main braking controller, or whether communication interruption occurs in any one device of the main controller, the main steering controller and the main braking controller.

6. A control method for an autonomous driving control system, wherein the control system is applied to a control device comprising a processor and a memory, the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the control method, the control system comprises a control apparatus and an execution apparatus, the control apparatus comprising a main controller and a backup controller, the execution apparatus comprising main execution apparatuses and backup execution apparatuses, the main execution apparatuses at least comprising a main steering controller and a main braking controller, and the backup execution apparatuses at least comprising a backup steering controller corresponding to the main steering controller and a backup braking controller corresponding to the main braking controller; and the method comprises:
receiving, by the backup controller, a main control instruction sent by the main controller;
decomposing, by the backup controller, the main control instruction to obtain backup control instructions corresponding to the backup execution apparatuses respectively;
sending, by the backup controller, the backup control instructions to the backup execution apparatuses correspondingly;
detecting, by the control system, whether an abnormality occurs in any one device of the main execution apparatuses; and
controlling, by the control system when detecting the above abnormality, the backup execution apparatus corresponding to the device in which the abnormality has occurred to execute a corresponding backup control instruction,
the backup control instructions comprise a backup steering control instruction and a backup braking control instruction; and
the step of sending, by the backup controller, the backup control instructions to the backup execution apparatuses correspondingly comprises:
sending, by the backup controller, the backup steering control instruction to the backup steering controller and the backup braking control instruction to the backup braking controller,
the control method further comprises:
detecting, by the backup steering controller, whether a control instruction of the main steering controller is received in a preset period;
if not, responding to, by the backup steering controller, the backup steering control instruction; and
detecting, by the backup braking controller, whether a control instruction of the main braking controller is received in a preset period;
if not, responding to, by the backup braking controller, the backup braking control instruction.

7. The control method according to claim 6 , wherein the step of controlling, by the control system when detecting the above abnormality, the backup

Assignees

• Geely Holding Group Co Ltd
• Zhejiang Geely Automobile Res Inst Co Ltd

Inventors

• Li Bo
• Li Xuefeng

Classifications

• B60W2050/0292

  Fail-safe or redundant systems, e.g. limp-home or backup systems · CPC title

• B60W10/20 Primary

  including control of steering systems · CPC title

• B60W10/18

  including control of braking systems · CPC title

• B60W60/0015

  specially adapted for safety · CPC title

• B60W50/023 Primary

  Avoiding failures by using redundant parts · CPC title