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Energy distribution device and energy distribution method of compound energy sources of urban electric bus

A technology for energy distribution and electric public transport, applied in electric vehicles, vehicle energy storage, electric energy management, etc., can solve problems such as poor power characteristics of aluminum-air batteries, achieve the effects of avoiding repeated replacement, meeting power requirements, and saving energy

Active Publication Date: 2015-10-07
TSINGHUA UNIV
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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 of poor power characteristics of existing electric vehicles using aluminum-air batteries, and proposes an energy distribution device and energy distribution method for urban electric bus composite energy

Method used

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  • Energy distribution device and energy distribution method of compound energy sources of urban electric bus
  • Energy distribution device and energy distribution method of compound energy sources of urban electric bus
  • Energy distribution device and energy distribution method of compound energy sources of urban electric bus

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specific Embodiment approach 1

[0021] Specific implementation mode 1. Combination figure 1 Describe this embodiment, the energy distributing device of a kind of urban electric bus compound energy described in this embodiment, it comprises aluminum-air battery, driver 9 and driving motor 10, and it also comprises vehicle speed sensor 1, accelerator pedal sensor 2, system Pedal sensor 3, vehicle controller 4, battery management system 5, alarm module 6, DC / DC converter 7, supercapacitor 8, and drain device 11;

[0022] The vehicle speed sensor 1 is used to detect the speed of the electric vehicle, the accelerator pedal sensor 2 is used to detect the opening state of the accelerator pedal, the brake pedal sensor 3 is used to detect the opening state of the brake pedal, and the vehicle speed signal input terminal of the vehicle controller 4 is connected to The signal output terminal of the vehicle speed sensor 1, the accelerator pedal opening signal input terminal of the vehicle controller 4 are connected to th...

specific Embodiment approach 2

[0024] Specific embodiment two, this embodiment is to utilize the energy distribution method of the energy distribution device of a kind of urban electric bus composite energy described in specific embodiment one, the specific steps of this method are:

[0025] Step 1: Use the vehicle speed sensor 1 to collect the speed of the electric vehicle, use the accelerator pedal sensor 2 to collect the opening of the electric vehicle's accelerator pedal, use the brake pedal sensor 3 to collect the opening of the brake pedal, and use the battery management system 5 to collect the aluminum air The remaining power of the battery SOC 1 and the remaining power SOC of the supercapacitor 2 ;

[0026] Step 2. Judging the remaining power SOC of the aluminum-air battery 1 Whether it is less than the minimum threshold h of the state of charge of the aluminum-air battery; if so, perform step three; otherwise, perform step four;

[0027] Step 3, the vehicle controller 4 sends a low battery alarm...

specific Embodiment approach 3

[0037] Specific embodiment three. This embodiment is a further description of the energy distribution method of the energy distribution device using a kind of urban electric bus composite energy described in specific embodiment two. The minimum threshold value h of the state of charge of the aluminum-air battery is 20% of the full capacity of the aluminum-air battery

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Abstract

The invention provides an energy distribution device and an energy distribution method of compound energy sources of an urban electric bus, relates to the configuration and the energy management method of compound energy sources of electric cars, and solves the problem of poor power characteristics caused by the fact that the existing electric vehicles adopt aluminum air batteries. According to the invention, by formulating the corresponding energy distribution method, energy of the compound energy sources is reasonably allocated, the energy of the aluminum air batteries is saved, and the aluminum air batteries do not need to be replaced repeatedly, so that the requirement of users for the driving range of electric vehicles is met, and the requirement for power of the urban electric bus most of the time is also met. The energy distribution device and the energy distribution method of the compound energy sources of the urban electric bus are suitable for distribution of compound energy sources of urban electric buses.

Description

technical field [0001] The invention relates to the configuration and energy management method of the composite energy source of an electric vehicle. Background technique [0002] At present, the specific energy of power batteries for electric vehicles is limited. Most electric vehicles use a single type of power battery as a power source to meet the pure electric mileage and drive power requirements. Under the constraints of meeting the additional weight and driving power requirements, power batteries with higher energy density, such as aluminum-air batteries and zinc-air batteries, are required to extend the driving range, but such high-energy power batteries have poor power characteristics. The operating conditions of the vehicle are likely to cause a significant attenuation of its life. Contents of the invention [0003] The invention aims to solve the problem of poor power characteristics of aluminum-air batteries used in existing electric vehicles, and proposes an e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/00B60L11/18
CPCY02T10/70Y02T10/72
Inventor 杜玖玉欧阳明高陈景夫卢兰光
Owner TSINGHUA UNIV
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