Integrated control device for pure electric vehicle

Abstract

The invention discloses an integrated control device for a pure electric vehicle. The integrated control device integrates main control plates of a vehicle control unit and a battery management system on the same circuit board, and has the functions of the vehicle control unit and the battery management system, wherein a microprocessor VBU is the core of the integrated control device, and comprises two independent microcontrollers; two independent power supply chips respectively supply power for the two microcontrollers independently. The two microcontrollers are in communication through an SPI, can mutually detect whether abnormal exist or not, and process the abnormal circumstance in real time, so that the overall system can be kept in a normal operation condition. The integrated control device has the advantages that more space is saved for arrangement of parts of the pure electric vehicle, and more benefits are brought for cost conservation for the whole vehicle; the functions and the safety level necessary for the original vehicle control unit and battery management system are reserved; more input signals can be collected, more output signals can be controlled, and deep level integration of the two functional controllers is realized to the maximum extent.

Description

technical field [0001] The invention belongs to equipment in a pure electric vehicle, in particular to an integrated control device in a pure electric vehicle. Background technique [0002] The pure electric vehicle vehicle controller (Vehicle Control Unit, referred to as VCU) is the core component of the pure electric vehicle vehicle control system. Features such as monitoring play a key role. On the one hand, the VCU obtains the driver’s demand information through its own data acquisition module. On the other hand, it forms a CAN bus network with the motor controller, battery management The parameters of auxiliary components, etc., use optimization algorithms to coordinate the operation of electric auxiliary components and motors, and save power consumption to the greatest extent on the premise of meeting the driver's demand for power and comfort of the vehicle. [0003] The battery management system (Battery Management System, referred to as BMS) of pure electric vehicl...

AI Technical Summary

Problems solved by technology

[0006] One of the existing technologies is that the pure electric vehicle does not have a separate design for the vehicle controller, but is integrated inside the motor controller. The disadvantage of this design scheme is that it cannot guarantee the accuracy of the energy management of the entire system and the coordinated control of each component. , when the amount of system data exchange is large, the real-time and reliability cannot meet the requirements, thus affecting the performance of the whole vehicle

Another technology is the integration of different functional controllers for pure electric vehicles. The disadvantage of this integration method is that it only realizes the integration at a simple level, and further research is needed in terms of in-depth integration. Requires independent consideration to reach original level

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