[1]梁 洪.转向工况下的混合动力汽车电子差速控制技术[J].机械与电子,2022,(12):34-38.
　LIANG Hong.Electronic Differential Control Technology of Hybrid Electric Vehicle Under Steering Condition[J].Machinery & Electronics,2022,(12):34-38.
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转向工况下的混合动力汽车电子差速控制技术()
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2022年12期
页码:
34-38
栏目:
机电一体化技术
出版日期:
2022-12-24

文章信息/Info

Title:
Electronic Differential Control Technology of Hybrid Electric Vehicle Under Steering Condition
文章编号:
1001-2257 ( 2022 ) 12-0034-05
作者:
梁 洪
四川三河职业学院,四川 泸州 646200
Author(s):
LIANG Hong
( Sichuan Sanhe College of Professionals , Luzhou 646200 , China )
关键词:
转向工况; 混合动力汽车; 电子差速; 阿克曼模型; 相对滑移率; 动力学分析
Keywords:
steering condition ;  hybrid electric vehicle ;  electronic differential ;  Ackermann model ;  relative slip ratio ;  kinetic analysis
分类号:
469.7
文献标志码:
A
摘要:
混合动力汽车在转向过程中易受轮胎垂向载荷、侧向力等因素的影响,为保证其稳定行驶,提出了基于改进相对滑移率的混合动力汽车电子差速控制技术。考虑车辆驾驶时轮胎垂向载荷、侧向力和侧偏角等因素,运用刚体运动原理构建混合动力汽车动力学模型;以车外某点为圆心,通过阿克曼理论计算前轴内外车轮转向角,参考汽车质心速率推算内外车轮转向工况下行驶速度,明确双驱动轮转速;推算内外侧转速和驱动轮距真实转速的耦合关系,将相对滑移率拟作差速控制参数,计算车辆系统性能指标,利用线性二次模型推导差速控制规律,以系统性能指标最小为目标,构建车辆系统最佳差速控制器。结果表明,所提技术能将电子差速滑转率控制在极低水平,降低了车辆的打滑概率,显著提升了车辆驾驶安全性。
Abstract:
In the steering process of hybrid electric vehicle , it is easy to be affected by factors such as vertical load and lateral force of tire.In order to ensure its stable driving , an electronic differential control technology of hybrid electric vehicle based on improved relative slip ratio is proposed.Considering the factors such as tire vertical load , lateral force and sideslip angle when driving , the dynamic model of hybrid electric vehicle is constructed by using the principle of rigid body motion ; Taking a point outside the vehicle as the center of the circle , the steering angle of the inner and outer wheels of the front axle is calculated through Ackerman theory , the driving speed is calculated under the steering condition of the inner and outer wheels with reference to the vehicle centroid speed , and the speed of the double drive wheels is clarified ; The coupling relationship between the inner and outer speed and the real speed of the driving track is calculated , the relative slip ratio is proposed as the differential control parameter , the vehicle system performance index is calculated , the differential control law is deduced by using the linear quadratic model , and the best differential controller of the vehicle system is constructed with the goal of minimizing the system performance index.The results show that the proposed technology can control the slip rate of electronic differential at a very low level , reduce the slip probability of the vehicle and significantly improve the driving safety of the vehicle.

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相似文献/References:

[1]王军鹏,许东来,周继,等.传统汽车的轮毂式混合动力改造设计与仿真[J].机械与电子,2016,(04):13.
　WANG Junpeng,XU Donglai,ZHOU Ji,et al.Design and Simulation of Hybrid Transformation on Conventional Cars Based on Wheel Motor Technology[J].Machinery & Electronics,2016,(12):13.

备注/Memo

备注/Memo:
收稿日期: 2022-03-14
作者简介:梁 洪 ( 1965- ),男,四川泸州人,讲师,研究方向为汽车维修、汽车电子。
更新日期/Last Update: 2023-01-04