Electric automobile main controlling device

Abstract

The invention provides an electric automobile main controlling device. The electric automobile main controlling device includes a power source controlling module, a connecting port module and a MCU controlling module. The MCU controlling module is internally provided with at least two CPUs. The CPUs are used for conducting analytical processing on received data of the MCU controlling module to make the MCU controlling module send controlling orders to a corresponding device according to an analysis result. When calculation results between the CPUs in the MCU controlling module are not the sameand are beyond the preset error range, sending of the controlling orders is stopped. According to the electric automobile main controlling device, through design of the MCU controlling module, the atleast two CPUs are made to conduct data analytical calculation simultaneously on the at least two CPUs and conduct contrasting of the calculation effects; the effect of self-inspection is achieved and reliability of the system is improved; when the MCU controlling module judges that the calculation effects between the CPUs are not the same and are beyond the preset error range, sending of the controlling orders is stopped, so that when internal failure of the electric automobile main controlling device occurs, sending of controlling signals can be effectively stopped and occurrence of an accident is prevented.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a main controller of the electric vehicle. Background technique [0002] With the state's policy support for new energy vehicles and the application and promotion of new energy vehicles, pure electric new energy vehicles have become the main development direction of automobile development. For new energy vehicles, the main controller of electric vehicles is the control center of the whole vehicle, which is related to the operation and safety of the whole vehicle. Therefore, the stability and reliability of the main controller of electric vehicles has attracted more and more attention. [0003] The existing main controller of electric vehicles adopts the method of single-core CPU to analyze the data of the whole vehicle, so that according to the data analysis results of the single-core CPU, the corresponding control commands are sent to the electronic equipment in the ca...

AI Technical Summary

Problems solved by technology

[0004] In the existing electric vehicle main controller, because the single-core CPU is used to analyze the vehicle data, when the electric vehicle main controller fails internally, the electric vehicle main controller cannot stop sending data to the electronic equipment in the car. Control signals, which may lead to safety accidents

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