Electric vehicle intelligent instrument based on safety of whole vehicle control function

The invention provides an electric vehicle intelligent instrument based on safety of the whole vehicle control function. The electric vehicle intelligent instrument comprises a watchdog circuit module, a Schmidt reverse trigger, an electronic switch module, a signal sampling circuit module, a main control module, an instrument driving control module, an instrument display, a driving circuit module, and a bus communication module. The watchdog circuit module is connected with the enabling end of the electronic switch module by the Schmidt reverse trigger. The main control module is connected with the electronic switch module by the signal sampling circuit module on one hand, and is connected with the instrument driving control module, the driving circuit module, and the CAN bus communication module on the other hand. The instrument driving control module is connected with the instrument display. The electric vehicle intelligent instrument can be used to automatically take over the control function of the whole vehicle controller, when the whole vehicle controller breaks down, and can be used for the dynamic seamless switching, and then the safety of the whole vehicle control function can be guaranteed.