Finished automobile intelligent controller of journey increasing type electromobile

Abstract

The invention discloses a finished automobile intelligent controller of a journey increasing type electromobile. The controller comprises a microprocessor, a power supply module, an on-off quantity input module, a voltage simulation quantity input module, a pulse quantity input module, a BDM (Background Debugging Mode) debugging interface, an on-off quantity output module, a simulation quantity output module, a PWM (Pulse-Width Modulation) output module, a CAN (Controller Area Network) communication module and an IIC (Inter-Integrated Circuit) communication module. Due to the arrangement of the design such as contrary connection prevention for the power supply model, and the processing of the on-off quantity input module and the on-off quantity output module, safe and stable work of the power supply module is ensured; due to the processing on the input / output of the on-off quantity, input / output signals are converted from parallel signals into serial signals, so that the hardware resource such as the microprocessor is saved, and the control efficiency is improved.

Description

technical field [0001] The invention mainly relates to a controller in the technical field of electric vehicles, in particular to a vehicle intelligent controller for an extended-range electric vehicle. Background technique [0002] Range-extended pure electric vehicles are aimed at the current situation that pure electric vehicles are limited by power battery technology, resulting in short mileage and high cost. On the basis of pure electric vehicles, a small engine and generator system is added, also known as a range extender. An electric vehicle whose driving power is provided entirely by electric motors. When the car is fully charged, the vehicle can travel tens of kilometers in pure electric mode to meet the daily short-distance driving needs. When the car battery is consumed to the lowest critical limit, the range extender will automatically start and continue to provide power for the motor to achieve Up to hundreds of kilometers of continuous driving ability. [000...

AI Technical Summary

Problems solved by technology

[0004] The anti-reverse connection design in the power module is a problem that must be considered in the hardware design of the vehicle controller. At present, the power supply anti-reverse design method often used in the vehicle controller is to connect Schottky diodes in series or Zener diodes in parallel. method to achieve, but both methods have inevitable defects

At the same time, the input and output of the switching value in the vehicle controller is usually directly controlled by the pins of the microprocessor. This method occupies a large amount of IO interface hardware resources of the microprocessor, and the efficiency of software polling control is low. In order to achieve bus isolation A large number of hardware resources such as optocouplers are required

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