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Control method and device

A control method and controller technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as the inability to activate the control system, the reduced reliability of the control system, and the inability of dual controllers to shake hands, etc.

Active Publication Date: 2021-04-09
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this control mode, if the dual controllers do not wake up synchronously or the initial state of one of the controllers is faulty, the dual controllers cannot shake hands, resulting in the failure of the entire control system to activate, thereby reducing the reliability of the control system

Method used

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Embodiment Construction

[0074] For ease of understanding, an application scenario of the embodiment of the present application is briefly introduced first.

[0075] figure 1 is an example diagram of a redundant control system architecture. Such as figure 1 As shown, the redundant control system 100 includes two control branches, the first control branch includes the first sensor 110, the first controller 120 and the first actuator 130; the second control branch includes the second sensor 140 , the second controller 150 and the second actuator 160. There is an internal communication between the first controller 120 and the second controller 150 .

[0076] Wherein, the redundant control system 100 may be a steering control system, an anti-skid control system, or a braking control system, etc.

[0077] The first sensor 110 and / or the second sensor 140 are used to detect the operating condition information of the vehicle, and transmit the information to the first controller 120 and / or the second cont...

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Abstract

The invention provides a control method and device. The control method and device can be applied to vehicles such as intelligent vehicles, new energy vehicles, networked vehicles and intelligent driving vehicles. The control method comprises the steps that: before the control function of a first controller and / or a second controller is activated, the first controller obtains a first operation state of the first controller; first indication information sent by the second controller is received, wherein the first indication information indicates main and auxiliary states of the second controller; the first controller sets a first main and auxiliary mode of the first controller based on the first operation state and the first indication information; and second indication information is sent to the second controller, so that the first main and auxiliary mode of the second controller set by the second controller does not conflict with the first main and auxiliary mode of the first controller. According to the control method provided by the embodiment of the invention, before the control function of the controllers is activated, the first controller can negotiate with the state of the second controller to determine the main and auxiliary modes, so that the reliability of the control system can be improved.

Description

technical field [0001] The present application relates to the technical field of automobiles, and more specifically, to a control method and device. Background technique [0002] With the rapid development of intelligent driving, higher requirements are put forward for the control system of the car. For example, the control system is usually required to have a certain degree of redundancy. That is to say, the control system should include dual control branches, and when one control branch fails, the other control branch can still provide control functions. [0003] The control system in the prior art adopts dual controllers to realize redundant control. By default, the first controller is the main controller, and the second controller is the auxiliary controller. After the control system starts to work, if the state of the main controller is abnormal, the auxiliary controller will take control, so that the control system has a certain redundancy capability. However, in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B9/03
CPCG05B9/03G06F11/2038G06F11/2028G06F11/3055G06F11/3013B60R16/0232G05B23/0259
Inventor 覃涛刘峰宇李杰
Owner HUAWEI TECH CO LTD
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