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A driving method for a range-extended electric vehicle during short-distance driving

A driving method and technology for electric vehicles, applied in the field of modern transportation, can solve problems such as waste of energy, and achieve the effects of reducing energy consumption, increasing mileage, and reducing load

Inactive Publication Date: 2016-03-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the range extender does not provide power but only exists as a load when the range-extended electric vehicle travels in a short distance, and instead wastes energy, the present invention proposes a driving method for the range-extended electric vehicle when the short-distance travel is performed. When the short trip required by the vehicle is within the expected mileage range of the on-board power battery, the range extender is removed to reduce the vehicle load, thereby reducing energy consumption

Method used

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  • A driving method for a range-extended electric vehicle during short-distance driving
  • A driving method for a range-extended electric vehicle during short-distance driving
  • A driving method for a range-extended electric vehicle during short-distance driving

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Embodiment 1

[0018] The present invention consists of a detachable range extender 4, a detachable range extender control system, a pure electric system 8, a pure electric control system, a vehicle control system, a global positioning system (Global Positioning System, GPS), and an instrument display system. Among them, the detachable range extender 4 includes an engine 3, a generator 2, and a fuel tank 5, which are integrated into one body and are responsible for fuel combustion and power generation. The detachable range extender and the frame are designed to be quickly disassembled and installed, which is convenient and fast Disassembly and installation; the detachable range extender control system includes the engine 3 control subsystem and the generator 2 control subsystem, which are responsible for communicating with the vehicle controller to control the detachable range extender 4; the pure electric system 8 includes an external plug The electric charger 6, the vehicle power battery 7,...

Embodiment 2

[0025] The first step is to fully charge the on-board power battery 7 by connecting the external plug-in charger 6 to the charging pile;

[0026] In the second step, the vehicle-mounted power battery 7 control subsystem estimates the mileage of the vehicle-mounted power battery 7, and the estimated mileage is , and transmits the estimated mileage to the vehicle control system;

[0027] In the third step, the driver operates the global positioning system, selects the destination, calculates the mileage required to reach the destination through the global positioning system, and uses the calculated required mileage Send to the vehicle control system;

[0028] In the fourth step, the vehicle control system compares the estimated mileage with the required mileage. If the estimated mileage is more than 10% greater than the required mileage, the instrument display system will display the short-stroke driving method and proceed to the fifth step; If the estimated mileage is not gre...

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Abstract

The invention discloses a driving method for a range-extended electric vehicle during short-stroke driving, which includes the following four stages: the stage of judging the battery mileage, the stage of disassembling the range extender, the stage of short-stroke driving, and the stage of installing the range extender; The fuel tank, engine, and generator of the extended-range electric vehicle are integrated to form a range extender. The quick disassembly structure is adopted between the range extender and the frame to form a detachable range extender. When judging the vehicle needs When the mileage is short, the detachable range extender is disassembled through the quick disassembly structure, and the vehicle is driven by pure electric power to reduce the load during short-stroke driving, thereby reducing energy consumption; when it is judged that the required mileage is not When the stroke is short, the detachable range extender is installed through the quick installation structure, and the vehicle is driven by the range extender; the invention solves the waste of energy consumption caused by the presence of the range extender as a load when the range extender electric vehicle is driven by pure electric power in a short stroke The problem.

Description

technical field [0001] The invention belongs to the technical field of modern transportation, and relates to a driving method for an extended-range electric vehicle, in particular to a driving method for the extended-range electric vehicle during short-distance driving. Background technique [0002] With the increasingly serious energy crisis and environmental pollution, energy saving and environmental protection are two major themes in the development of the automobile industry today. From the perspective of the development direction of new energy vehicles, pure electric vehicles (Blade Electric Vehicles, BEV) will become an important development direction. slow. Hybrid Electric Vehicle (HEV) not only inherits the advantages of high specific energy and high specific power of traditional engines, but also makes up for the shortcomings of pure electric vehicles, and significantly improves the fuel economy and emission performance of the whole vehicle. Range-Extended Electri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18
Inventor 周雅夫吕仁志连静李琳辉贾朴韩虎庞博
Owner DALIAN UNIV OF TECH