Extended-range electric vehicle driving mileage calculating and displaying system

Abstract

The invention discloses an extended-range electric vehicle driving mileage calculating and displaying system. The extended-range electric vehicle driving mileage calculating and displaying system comprises a signal collecting and processing module, a calculating module and a displaying module, wherein the signal collecting and processing module is used for collecting and processing signals transmitted by a sensor, an electric auxiliary machinery, a vehicle controller and a battery management system BMS in real time; the calculating module is used for calculating driving mileage, economical speed and maximum driving mileage; and the displaying module is used for displaying the driving mileage, the economical speed and the maximum driving mileage which are calculated by the calculating module. The extended-range electric vehicle driving mileage calculating and displaying system has the advantages that the economical speed and the maximum driving mileage are calculated and displayed according to the most efficient power generation power of a range extender and vehicle parameters; meanwhile, the driving mileage capable of satisfying driving requirements of a driver is calculated and displayed on the basis of driver desired electric quantity, battery remaining capacity and remaining fuel quantity.

Description

technical field [0001] The invention relates to the technical field of control of an extended-range electric vehicle, in particular to a calculation and display system for a cruising range of an extended-range electric vehicle. Background technique [0002] With the advancement of society, people's awareness of environmental protection has increased, and they have begun to advocate "low-carbon, environmentally friendly, and green" travel methods, making the research on high-efficiency, environmentally friendly, and energy-saving electric vehicles aroused great attention from automobile manufacturers around the world. The range-extended electric vehicle has the advantages of reducing emissions and reducing energy consumption when it is driven by pure electric power. It is designed to solve the short mileage of pure electric vehicles with energy supplementary units. Or when the fault occurs, the range extender charges the battery, or drives the vehicle directly. When driving w...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a mileage calculation and display system for an extended-range electric vehicle to solve the problem in the prior art that the current extended-range electric vehicle does not consider whether the real-time power generation of the range extender can meet the driving power consumption of the driver. When the power generated by the range extender cannot meet the driving power consumption, the battery power will be consumed during driving until the battery cannot be discharged, and the whole vehicle may no longer be able to drive according to the driver's driving requirements, so the vehicle can be guaranteed to be normal according to the driver's driving requirements The cruising range driven is less than the calculated cruising range

If the driver refers to the cruising range during driving, the problem of misjudgment will occur

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