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A distributed driving electric vehicle composite energy distribution device and energy distribution method

An energy distribution and composite energy technology, applied in electric vehicles, vehicle energy storage, power management, etc., can solve problems such as insufficient driving range of electric vehicles, and achieve the goal of avoiding unnecessary waste, rational energy distribution, and increasing driving range. Effect

Inactive Publication Date: 2017-07-04
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing electric vehicles use batteries as the power source, resulting in insufficient mileage of electric vehicles, and proposes an energy distribution device and energy distribution method for distributed drive electric vehicle compound energy

Method used

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  • A distributed driving electric vehicle composite energy distribution device and energy distribution method

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specific Embodiment approach 1

[0024] Specific implementation mode 1. Combination figure 1 Describe this embodiment, a kind of energy distributing device of distributed drive electric vehicle composite energy described in this embodiment, it comprises No. 1 driver 1, No. 2 driver 2, No. 3 driver 5, No. 4 driver 6 and lithium battery; It also includes a DC / DC converter 3, a supercapacitor 4, a drain device 7, a battery management system 8, an alarm device 9, a vehicle management system 10, a vehicle speed sensor 11, an accelerator pedal sensor 12 and a brake pedal sensor 13;

[0025] No. 1 driver 1, No. 2 driver 2, No. 3 driver 5 and No. 4 driver 6 are respectively used to drive No. 1 motor, No. 2 motor, No. 3 motor and No. 4 motor; and No. 1 motor and No. 2 motor are used to drive The two wheels on the front side, motor No. 3 and motor No. 4 are used to drive the two wheels on the rear side;

[0026] The lithium battery is used to supply power to the third driver 5 and the fourth driver 6, and the supercap...

specific Embodiment approach 2

[0030] Specific embodiment two, this embodiment is to utilize the lithium battery of the energy distributing method of the energy distributing device of a kind of distributed drive electric vehicle composite energy described in specific embodiment one, and the specific steps of this method are:

[0031] Step 1: Use the vehicle speed sensor 11 to detect the vehicle speed signal of the electric vehicle, the accelerator pedal sensor 12 to detect the accelerator pedal opening signal, the brake pedal sensor 13 to detect the brake pedal opening signal, and the battery management system 8 to collect the remaining power SOC1 of the lithium battery and the remaining power SOC2 of the supercapacitor;

[0032] Step 2, judge whether the accelerator pedal opening is greater than 0, if so, then perform step 6, otherwise perform step 3;

[0033] Step 3: Determine whether the opening of the brake pedal is greater than 0, if so, calculate the braking power P according to the vehicle speed sign...

specific Embodiment approach 3

[0042] Specific Embodiment Three. Further description of the energy distribution method of the energy distribution device using a distributed drive electric vehicle composite energy described in this embodiment, the minimum threshold value α of the state of charge of the lithium battery is 20% of the full battery capacity .

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Abstract

The invention discloses an energy distribution device and method for a distributed electric vehicle driving compound energy source and the configuration and energy distribution method for the electric vehicle driving compound energy source. The energy distribution device and method solve the problem that due to the fact that a battery is adopted by an existing electric vehicle to serve as a power source, the driving mileage of the electric vehicle is not sufficient. A corresponding motor driving method is provided, so that a lithium battery-super capacitor compound energy electric vehicle can travel normally under different power requirements; meanwhile, energy distribution of the compound energy source is made more reasonable, the electric vehicle can work normally under different power requirements, and unnecessary energy waste is avoided; the driving mileage of the electric vehicle is increased. The energy distribution device and method are suitable for energy distribution of the distributed electric vehicle driving compound energy source.

Description

technical field [0001] The invention relates to the configuration and energy distribution method of composite energy for driving electric vehicles. Background technique [0002] Nowadays, most electric vehicles use a kind of battery as the power source, which often causes the problem of insufficient driving range of electric vehicles. At the same time, it causes unnecessary waste of energy and reduces the driving range of the electric vehicle. Contents of the invention [0003] The invention aims to solve the problem that the existing electric vehicle uses a battery as a power source, resulting in insufficient mileage of the electric vehicle, and proposes an energy distribution device and an energy distribution method for distributedly driving the compound energy of the electric vehicle. [0004] A kind of energy distributing device of the compound energy source of a kind of distributed driving electric vehicle described in the present invention, it comprises No. 1 driver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/00B60L11/18
CPCY02T10/70Y02T10/72
Inventor 吴晓刚陈喆
Owner HARBIN UNIV OF SCI & TECH
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