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EMB redundancy control system and method

A technology of redundant control and module control, applied in general control system, control/regulation system, program control, etc., can solve the problem of EMB non-redundant design, and achieve the effect of ensuring vehicle safety

Pending Publication Date: 2021-07-13
CHINA FIRST AUTOMOBILE
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of EMB redundant control system and method, to solve the problem of current EMB no redundant design

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  • EMB redundancy control system and method

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention belongs to the technical field of automobile braking systems, and discloses an EMB redundancy control system and method. The control system comprises: four EMB modules connected to different wheels respectively so as to control the wheels connected with the EMB modules; a main MCU module which is connected with each EMB module through a first CAN line; and an auxiliary MCU module which is connected with each EMB module through a second CAN line, wherein a third CAN line is connected between the main MCU module and the auxiliary MCU module, the auxiliary MCU module monitors the state of the main MCU module, and when the main MCU module does not fail, the main MCU module controls the four EMB modules, and when the main MCU module fails, the auxiliary MCU module replaces the main MCU module to control the four EMB modules. For an EMB redundancy control system, a redundancy control framework is formed between the main MCU module and the auxiliary MCU module, and vehicle safety control is achieved.

Description

technical field [0001] The invention relates to the technical field of automobile brake systems, in particular to an EMB redundant control system and method. Background technique [0002] Electro Mechanical Brake (EMB, Electro Mechanical Brake) does not use hydraulic pressure, but uses a screw / nut mechanism to convert the rotational force of the drive motor into linear motion and pressurize the electric brake device of the piston. EMB cancels the hydraulic system and directly uses the motor to drive the mechanical piston brake, which has the following advantages: 1. The safety advantage is extremely prominent, and the braking distance is greatly shortened. The 120 milliseconds of the system is faster; second, there is no hydraulic system, and there will be no liquid leakage, which is especially important for electric vehicles. Liquid leakage may cause short circuits or component failures, which will lead to disasters; at the same time, the cost and maintenance costs are also...

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0421G05B2219/24182
Inventor 闫鲁平郝占武隋清海
Owner CHINA FIRST AUTOMOBILE
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