Function failure mode and failure level design method based on remote monitoring terminal

Abstract

The invention discloses a function failure mode and failure hierarchy design method based on a remote monitoring terminal, and the method comprises the steps: enabling a controller B + to be not connected when a part leaves a factory and is not loaded, and employing default setting: a failure mode = 1; after the T-BOX is installed on the whole vehicle, an ignition key of the vehicle is switched to an ON gear, and the T-BOX records a real-time fault that the failure mode is not set; a failure mode is set to be equal to 0 through production line configuration equipment, a control function is designed through a vehicle starting function failure hierarchy, the electric quantity of a storage battery is monitored in real time, different function requirements are supported according to different electric quantities, and when the voltage of the storage battery is within a normal range, full-function supporting is achieved; when the voltage of the storage battery is not in the normal range, setting a failure level; and after the setting is completed, the T-Box'failure mode non-setting 'fault code is changed into a historical fault. According to the method, function hierarchy division is carried out, function operation hierarchy design is carried out in an electric quantity abnormal state, electric quantity consumption is reduced, parts and components are protected, and meanwhile, the risk of system shutdown caused by excessive electric quantity consumption can be reduced.

Description

technical field [0001] The invention relates to the technical field of automobile intelligent control, in particular to a function failure mode and failure level design method based on a remote monitoring terminal. Background technique [0002] Since the B+ will be disconnected to stock the vehicle (including the stock in the 4S shop) after the parts factory is assembled and rolled off the assembly line, the T-Box will switch to the built-in battery mode and enter a dormant state. If the vehicle has been in stock for a long time, there is a risk of running out of power in the built-in battery. Therefore, the T-Box needs to have a functional failure mode, which reduces battery consumption by disabling certain functions. [0003] The prior art has the following disadvantages: 1) there is no failure mode, and the inventory status cannot be distinguished; 2) the function failure level design is not carried out, and different function failure schemes are not adapted according to...

AI Technical Summary

Problems solved by technology

[0003] The existing technology has the following disadvantages: 1) There is no failure mode, and the inventory status cannot be distinguished; 2) The functional failure level design is not carried out, and different functional failure schemes are not adapted according to the power supply situation

When the power is abnormal, the functional hierarchy is still not divided, and unnecessary functions or non-critical functions are run, which will increase power consumption and component damage, which will easily lead to abnormal shutdown of the parts system

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