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采用8098单片机为系统的控制中心,完成以下工作:对微机控制系统的硬件电路结构进行了设计和调试;对车辆起步过程中的离合器行程实施多目标综合优化与模糊控制相结合的脉宽调制控制,同时使油门开度的控制及时适应其目标值(即司机意图)和离合器行程控制的变化,较完善地解决了以单片机同时控制两个外设的CPU占用问题;提出换档过程中对油门实施数字PD调节,以减小换档冲击和振荡,实现较平稳换档的方案;编制了基本能够符合车辆复杂的操纵规程,适应千变万化的实时工况的主控程序,达到按照车辆的动态三参数换档规律实现自动换档,和对紧急制动、停车等各种工况的及时、正确处理;针对汽车运行环境恶劣的情况,提出了较为具体的系统抗干扰方案。
8098 single-chip microcomputer as the system control center to complete the following work: the computer control system hardware circuit structure design and debugging; the vehicle starting process of the clutch stroke implementation of multi-objective optimization and fuzzy control of a combination of pulse width modulation control , At the same time make the throttle opening degree control in time to adapt to its target value (that is, the driver intent) and the clutch stroke control changes, a better solution to the single-chip microcomputer while controlling the two peripherals CPU occupancy; shift proposed during the throttle The implementation of digital PD regulation to reduce the shift shock and oscillation, to achieve a more stable shift program; prepared basically to meet the vehicle complex operating procedures to adapt to ever-changing real-time operating conditions of the master control procedures to achieve the dynamic three The automatic transmission of parameter shift schedule and the timely and correct handling of various operating conditions such as emergency braking and parking are put forward. Aiming at the bad running environment of automobile, a more specific system anti-interference plan is proposed.