液力变矩器的闭锁控制

惠记庄; 郭云欣; 郑恒玉; 张泽宇; 胡浩

doi:10.19818/j.cnki.1671-1637.2016.05.008

液力变矩器的闭锁控制

doi: 10.19818/j.cnki.1671-1637.2016.05.008

长安大学公路养护装备国家工程实验室, 陕西西安 710064

基金项目:

国家科技支撑计划项目 2015BAF07B00

陕西省自然科学基金项目 2015JM5216

详细信息

作者简介:
惠记庄(1963-), 男, 陕西富平人, 长安大学教授, 工学博士, 从事车辆与机械工程研究

中图分类号: U463.22
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- 被引次数: 0
出版历程
- 收稿日期: 2016-07-16
- 刊出日期: 2016-10-25

Locking control of hydraulic torque converter

National Engineering Laboratory for Highway Maintenance Equipment, Chang'an University, Xi'an 710064, Shaanxi, China

More Information

Author Bio:
HUI Ji-zhuang(1963-), male, professor, PhD, +86-29-82334315, wsjdb01@chd.edu.cn

摘要

摘要: 以某型号工程车辆为研究对象, 针对其工况特点, 以闭锁控制原理为基础, 计算并选择在不同油门开度下的常用闭锁点。以油门开度和涡轮转速为基础, 以制动信号、档位信号和冷却水温度信号为辅助, 设计了多参数闭锁控制策略, 并建立了相应的闭锁流程。运用MATLAB/Simulink软件建立了由闭锁控制模型、发动机模型、液力变矩器模型、液力变矩器输出模型、变速箱模型和外界阻力模型组成的整车模型, 并对整车模型进行仿真。仿真结果表明: 闭锁信号能对水温与档位信号做出正确响应, 车辆在设定的闭锁点处实现闭锁; 闭锁控制模型符合制定的闭锁控制策略, 且其传动系统的输出模型符合实际工况, 为车辆的闭锁控制提供了理论依据, 也为车辆传动效率的提高与车辆节能减排提供了一种新方案。
- 车辆工程 /
- 液力变矩器 /
- Simulink /
- 闭锁控制 /
- 涡轮 /
- 泵轮
Abstract: A type of engineering vehicle was used as research object, its characteristics of working condition were considered, and the common locking points at different throttle openings were calculated and selected based on the locking control principle.Based on throttle opening and turbine speed, brake signal, gear signal and cooling water temperature signal were considered, a multi-parameters locking control strategy was designed, and the corresponding locking flow was set up.Whole vehicle model composed of locking control model, engine model, hydraulic torque converter model, the output model of hydraulic torque converter, transmission model, and external resistance model, was built and simulated by using MATLAB/Simulink software.Simulation result shows that the locking signal responds correctly with the change of water temperature and gear signal, and the vehicle is locked at the setting locking point.The locking control model accords with the established locking control strategy, and the output model of transmission system is in line with the actual working conditions, which provides a theoretical basis for the locking control of vehicle and proposes a new scheme for improving the transmission efficiency, energy saving and emission reduction of vehicle.
- vehicle engineering /
- hydraulic torque converter /
- Simulink /
- locking control /
- turbine /
- pump wheel

HTML全文

图 1 闭锁式液力变矩器结构

Figure 1. Structure of locking type hydraulic torque converter

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图 2 液力变矩器原始特性曲线

Figure 2. Initial characteristic curves of hydraulic torque converter

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图 3 闭锁控制流程

Figure 3. Flow of locking control

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图 4 闭锁控制模型

Figure 4. Locking control model

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图 5 发动机模型

Figure 5. Engine model

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图 6 液力变矩器模型

Figure 6. Model of hydraulic torque converter

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图 7 变速箱模型

Figure 7. Transmission model

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图 8 外界阻力模型

Figure 8. Model of external resistance

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图 9 液力变矩器输出模型

Figure 9. Output model of hydraulic torque converter

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图 10 整车仿真模型

Figure 10. Simulation model of whole vehicle

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图 11 冷却水温度

Figure 11. Temperature of cooling water

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图 12 冷却水温度的闭锁信号

Figure 12. Locking signals of cooling water temperature

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图 13 档位与闭锁信号

Figure 13. Gear and locking signals

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图 14 涡轮转速曲线

Figure 14. Curve of turbine speed

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图 15 涡轮转速的闭锁信号

Figure 15. Locking signals of turbine speed

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图 16 泵轮和涡轮转速曲线

Figure 16. Curves of pump wheel and turbine speeds

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图 17 泵轮和涡轮输出转矩曲线

Figure 17. Output torque curves of pump wheel and turbine

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表 1 不同工况下液力变矩器的闭锁点

Table 1. Locking points of hydraulic torque converter under different working conditions

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