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Parameter matching method for power system of electric car

An electric vehicle and parameter matching technology, applied in the automotive field, can solve problems such as low matching accuracy of power batteries

Inactive Publication Date: 2016-07-13
胡国旺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a parameter matching method for the power system of an electric vehicle, which solves the problem of low matching accuracy of the drive motor, transmission speed, and power battery of the current electric vehicle

Method used

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Examples

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with examples, but the present invention is not limited to these examples.

[0023] Electric vehicles are mainly composed of electric drive control system, vehicle chassis, body and various auxiliary devices. The electric drive control system consists of an electric drive module, an on-board power supply module and an auxiliary module. The electric drive module is mainly composed of an electronic controller, a power converter, an electric motor, and a mechanical transmission device. The vehicle power supply module is mainly composed of three parts: battery power supply, energy management system and charge controller. Auxiliary modules include low-voltage power supply, steering and various auxiliary devices, etc.

[0024] The basic steps to realize the parameter matching of electric vehicle power drive system:

[0025] 1) Analysis of vehicle demand power and power spectrum;

[0026] 2) Selection of ...

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PUM

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Abstract

The invention discloses a parameter matching method for a power system of an electric car.Parameter matching design is performed on power system parameters of the electric car, factors influencing the power performance and the full charge endurance of the car are analyzed, and by analyzing various resistance of car driving and using a practical power driving system design matching method, parameter matching is performed on the power system, matching design is performed on key parameters such as an electromotor, the transmission ratio and the battery pack capacity, and the maximum and minimum reduction ratio of a driving motor and a transmission system, the type of a battery system and selection of battery pack voltage and energy are designed.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a parameter matching method of an electric vehicle power system. Background technique [0002] Electric vehicles can achieve zero or very low emissions in urban traffic, and the use of electric vehicles can significantly reduce global air pollution. From an energy point of view, the energy used by electric vehicles is a reliable, widely sourced, balanced, and environmentally friendly energy source. Therefore, the development of electric vehicles will have an The establishment and economic development have a significant and far-reaching impact. Electric vehicles have zero emissions during the use phase, high comprehensive energy utilization efficiency, and can completely get rid of dependence on oil, which is the fundamental way to solve my country's automobile energy and environmental problems. The matching of parameters such as the drive motor, transmission speed, and power battery ...

Claims

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Application Information

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IPC IPC(8): B62D65/00B60L11/18
CPCB60L50/50B62D65/00Y02T10/70
Inventor 胡国旺
Owner 胡国旺