Discrete Optimization of Transmission Ratio of Two-speed AMT for Electric Vehicle

Zhu Yongqi; Huang Kang

doi:10.16578/j.issn.1004.2539.2017.11.002

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Discrete Optimization of Transmission Ratio of Two-speed AMT for Electric Vehicle

更新时间：2022-10-20

- Discrete Optimization of Transmission Ratio of Two-speed AMT for Electric Vehicle
- Vol. 41, Issue 11, Pages: 8-12(2017)
- 作者机构：
  
  1. 合肥工业大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2017.11.002
  CLC：
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[1]朱永奇,黄康.两挡AMT纯电动汽车变速器传动比离散优化[J].机械传动,2017,41(11):8-12+77.

Zhu Yongqi, Huang Kang. Discrete Optimization of Transmission Ratio of Two-speed AMT for Electric Vehicle. [J]. 41(11):8-12(2017)
[1]朱永奇,黄康.两挡AMT纯电动汽车变速器传动比离散优化[J].机械传动,2017,41(11):8-12+77. DOI： 10.16578/j.issn.1004.2539.2017.11.002.

Zhu Yongqi, Huang Kang. Discrete Optimization of Transmission Ratio of Two-speed AMT for Electric Vehicle. [J]. 41(11):8-12(2017) DOI： 10.16578/j.issn.1004.2539.2017.11.002.

摘要

用传统方法所得变速器传动比优化结果往往与配齿后所得实际传动比有一定偏离,基于给定整车参数和动力性能指标的两挡AMT纯电动汽车,对其驱动电机进行参数匹配后,以变速器各挡齿轮副齿数为离散设计变量,结合NEDC驾驶循环和经济性换挡规律,提出一种传动比离散优化方法。结果表明,该优化方法所得传动比的最优值不仅使驱动电机系统的综合效率尽可能最高,而且该最优值可由变速器齿轮配齿实际精确得到。

Abstract

The transmission ratios optimized by traditional optimization method often have a difference from the actual values decided by gear teeth matching. Based on a battery electric vehicle whose vehicle parameters and dynamics performance requirements are given,the parameters matching of driving motor is conducted firstly. Then,taking the numbers of teeth of transmission as variables,a discrete optimization method of transmission ratios is established,considering the New European Driving Cycle（NEDC） and the economic shift schedule. The results show that the optimal solution of the transmission ratios obtained from proposed method can make the motor driving system working in the high-efficiency area,and the ratios can be actually obtained by the gear teeth matching of transmission.

关键词

纯电动汽车变速器传动比离散优化

Keywords

Battery electric vehicleTransmissionTransmission ratioDiscrete optimization

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