拼音变换法是以汉语拼音的书写格式作为输入手段,然后由机器自动变换为汉字的一种计算机汉字处理技术。中国CW中文语词处理系统,加拿大“天马”中文语词处理系统,日本“夏普”WL-1000中西文打字机,西德“慕尼黑”中文语词处理系统等是...拼音变换法是以汉语拼音的书写格式作为输入手段,然后由机器自动变换为汉字的一种计算机汉字处理技术。中国CW中文语词处理系统,加拿大“天马”中文语词处理系统,日本“夏普”WL-1000中西文打字机,西德“慕尼黑”中文语词处理系统等是拼音变换法研究的典型成果。CW系统(Chinse words system)是由北京大学。展开更多
For the purpose of engineering development for a new 8-step speed automatic transmission,a simplified dynamic model for this gearbox was established and key parameters which affected the shift quality were analyzed.Ai...For the purpose of engineering development for a new 8-step speed automatic transmission,a simplified dynamic model for this gearbox was established and key parameters which affected the shift quality were analyzed.Aiming at four different shift types,the ideal characteristics of shift clutch and engine control were set up.By using torque estimation method,PI slip control algorithm and engine coordinated control principle,the control model and transmission controller were well developed for three shift phases which included rapid-fill phase,torque phase and inertia phase.The testing environment on the rig and prototype vehicle level was built and the testing results obtained in ultimate condition could verify the accuracy and feasibility of this shift control strategy.The peak jerk during shift process was controlled within ±2 g/s where the smooth gearshift was obtained.The development proposal and algorithm have a high value for engineering application.展开更多
文摘拼音变换法是以汉语拼音的书写格式作为输入手段,然后由机器自动变换为汉字的一种计算机汉字处理技术。中国CW中文语词处理系统,加拿大“天马”中文语词处理系统,日本“夏普”WL-1000中西文打字机,西德“慕尼黑”中文语词处理系统等是拼音变换法研究的典型成果。CW系统(Chinse words system)是由北京大学。
基金Project(51105017) supported by the National Natural Science Foundation of ChinaProject(2011BAG09B00) supported by the National Science and Technology Support Program of ChinaProject(2010DFB80020) supported by the Technology Major Project of the Ministry of Science and Technology of China
文摘For the purpose of engineering development for a new 8-step speed automatic transmission,a simplified dynamic model for this gearbox was established and key parameters which affected the shift quality were analyzed.Aiming at four different shift types,the ideal characteristics of shift clutch and engine control were set up.By using torque estimation method,PI slip control algorithm and engine coordinated control principle,the control model and transmission controller were well developed for three shift phases which included rapid-fill phase,torque phase and inertia phase.The testing environment on the rig and prototype vehicle level was built and the testing results obtained in ultimate condition could verify the accuracy and feasibility of this shift control strategy.The peak jerk during shift process was controlled within ±2 g/s where the smooth gearshift was obtained.The development proposal and algorithm have a high value for engineering application.
