Mileage-increasing electric automobile and driving control method

An electric vehicle and range-extending technology, which is applied in the direction of electric vehicles, motor vehicles, electric braking systems, etc., can solve the problems of unsatisfactory mileage and limited power battery capacity, so as to avoid the worry of driving mileage and reduce production costs and use cost, cost reduction effect

Pending Publication Date: 2020-02-21
CHERY & WANDA GUIZHOU BUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a range-extended electric vehicle and a drive control method to overcome the defects of limited power battery capacity and unsatisfactory mileage of pure electric vehicles, and to realize the smooth transition from fuel vehicles to pure electric vehicles

Method used

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  • Mileage-increasing electric automobile and driving control method
  • Mileage-increasing electric automobile and driving control method
  • Mileage-increasing electric automobile and driving control method

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: as Figure 1-Figure 5 As shown, an extended-range electric vehicle consists of electric steering system (EPS) 1, electric vacuum pump 2, vehicle instrument 3, other electrical accessories 4, 12V DC power supply 5, battery management system (BMS) 6, and power battery pack 7 , oil tank 8, DCDC 9, drive motor controller (MCU) 10, generator control unit (GCU) 11, radiator I 12, drive motor 13, final reducer 14, auxiliary power unit (APU) 15, compressor 16, Composed of radiator II 17 and vehicle controller (VCU) 18, an auxiliary power unit 15 is installed on the electric vehicle, the auxiliary power unit 15 is connected to the generator control device 11 and the vehicle controller 18, and the generator control device 11 is connected to the DCDC The conversion module 9 and the drive motor controller 10, the auxiliary power unit 15 adopts a generator set; the auxiliary power unit 15 is also connected to the power battery pack 7 through the on-board charging devic...

Embodiment 2

[0026] Embodiment 2: A drive control method for an extended-range electric vehicle. The method is as follows: the electric vehicle is charged by the power grid, and the electric energy is preferentially used for driving. When additional power supplement is required, the generator set of the auxiliary power unit is turned on for power supplement, and Make the engine work at the best working point, drive the generator to work, and the output mechanical energy is transmitted to the motor or power battery pack through the power converter. During the driving process, the vehicle controller analyzes the pedal opening signal, gear signal and key Switch the signal light to identify the driver's intention, turn off the low-voltage circuit, and the drive motor controller controls the power-on operation of the electric steering system; when the high-voltage circuit is powered on, the output of the drive motor is controlled by the drive motor controller. When the power of the power battery ...

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Abstract

The invention discloses a mileage-increasing electric automobile and a driving control method. The mileage-increasing electric automobile comprises an electric automobile; an auxiliary power unit is mounted on the electric automobile; the auxiliary power unit is connected with generator control equipment and a complete vehicle controller; the generator control equipment is connected with a DCDC conversion module and a driving motor controller; and the auxiliary power unit adopts a generator set. The mileage-increasing electric automobile is an electric vehicle that the auxiliary power unit (APU) is additionally adopted on the basis of a full electric automobile; the auxiliary power unit is started when vehicle demanding power is high or driving mileage is required to be prolonged; the battery capacity of the mileage-increasing electric automobile approximately accounts for 30-40% of that of the full electric automobile, so that the cost of a complete vehicle power system is reduced substantially, and the manufacturing cost and use cost of a complete vehicle are further reduced; and concerns of a driver about the driving mileage can be avoided by fitting with the auxiliary power unit.

Description

technical field [0001] The invention relates to an extended-range electric vehicle and a drive control method, belonging to the technical field of electric vehicles. Background technique [0002] Under the dual challenges of energy and environmental issues, the development of new energy vehicles has become the development direction of the automobile industry in various countries. To reduce CO2 emissions and dependence on fossil fuels, automakers are focusing on electric vehicles. Pure electric vehicles are clean vehicles in the true sense. Compared with traditional vehicles, pure electric vehicles have several advantages: including less pollution, low noise, and high vehicle weight reduction. However, at this stage, the capacity and cost bottlenecks of batteries still cannot be broken through, making electric vehicles unable to be widely promoted. Among the reasons why consumers do not choose to buy pure electric vehicles, range anxiety plays a large role. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/62B60L7/10
CPCB60L7/10B60L50/62Y02T10/62Y02T10/70
Inventor 江涛张勇张珊珊
Owner CHERY & WANDA GUIZHOU BUS
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