深圳大学学报理工版

运用模糊控制原理,采用Motorola MC68376微处理器和霍尔效应零速传感器,对某型军用车辆离合器半接合点附近区域进行精确控制,基本消除离合器起步冲击,减小离合器的滑磨,使车辆能自动适应驾驶员的起步意图与不同的路面阻力,尤其是在驾驶员实施快起步意图与大路面阻力方面,达到平稳控制车辆起步的目的 .

Based on fuzzy control theory, the Motorola MC68376 microprocessor and Hall-effect zero-speed sensor were used to measure and control accurately the values of half junction point of automatic mechanical transmission(AMT)clutch used on military vehicles. The experimental results show that the vehicle can automatically respond to the start intents of drivers and road conditions because the start stock of clutch is eliminated on the whole, and the slip fray is abated. Especially,the aim of smooth start is achieved when fast start acts and big resistance exists on road.

引言
1 控制原理
2 控制系统
3 信号采集及处理
4 试验结果及分析
5 结语

图1 控制系统示意图
Fig.1 Control system

图2 油门踏板和离合器位移信号中断服务流程<br/>Fig.2 Interrupt service procedure of accelerator pedal and clutch displacement

图2 油门踏板和离合器位移信号中断服务流程
Fig.2 Interrupt service procedure of accelerator pedal and clutch displacement

图3 发动机转速、变速箱输入与输出信号中断服务流程<br/>Fig.3 Interrupt service procedure of engine speed and gearbox input/output signal

图3 发动机转速、变速箱输入与输出信号中断服务流程
Fig.3 Interrupt service procedure of engine speed and gearbox input/output signal

图4 离合器对应最大、最小路面阻力的半接合点测试流程<br/>Fig.4 Procedure of testing for clutch half junction point corresponding to max/min surface resistance

图4 离合器对应最大、最小路面阻力的半接合点测试流程
Fig.4 Procedure of testing for clutch half junction point corresponding to max/min surface resistance

表1 反映起步意图的离合器性能参数<br/>Table 1 Clutch performance parameter of starting intention

表1 反映起步意图的离合器性能参数
Table 1 Clutch performance parameter of starting intention

图5 快起步意图下的性能曲线<br/>Fig.5 Performance curve of fast starting

图5 快起步意图下的性能曲线
Fig.5 Performance curve of fast starting

图6 中等起步意图下的性能曲线<br/>Fig.6 Performance curve of medium starting

图6 中等起步意图下的性能曲线
Fig.6 Performance curve of medium starting

图7 慢起步意图下的性能曲线<br/>Fig.7 Performance curve of slow starting

图7 慢起步意图下的性能曲线
Fig.7 Performance curve of slow starting

图8 大路面阻力下的性能曲线<br/>Fig.8 Performance curve of large surface resistance

图8 大路面阻力下的性能曲线
Fig.8 Performance curve of large surface resistance

图9 中等路面阻力下的性能曲线<br/>Fig.9 Performance curve of medium surface resistance

图9 中等路面阻力下的性能曲线
Fig.9 Performance curve of medium surface resistance

图10 较小路面阻力下的性能曲线<br/>Fig.10 Perormance curve of little surface resistance

图10 较小路面阻力下的性能曲线
Fig.10 Perormance curve of little surface resistance

表2 不同路面阻力下离合器性能参数<br/>Table 2 Clutch performance parameter of various surface resistance

表2 不同路面阻力下离合器性能参数
Table 2 Clutch performance parameter of various surface resistance

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引言

1 控制原理

2 控制系统

3 信号采集及处理

4 试验结果及分析

5 结语

期刊信息

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