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    • 10. 发明授权
    • Load condition preemption of scheduled gearshifts in an automatic
transmission
    • 自动变速器中的定期变速箱的负载条件抢占
    • US5166879A
    • 1992-11-24
    • US622102
    • 1990-12-03
    • Thomas L. GreeneSteven M. LepiBruce J. PalanskyMichael J. Cullen
    • Thomas L. GreeneSteven M. LepiBruce J. PalanskyMichael J. Cullen
    • F16H59/62F16H61/00F16H61/02F16H61/14
    • F16H61/0213F16H59/62F16H61/143F16H2061/0087F16H2061/161F16H61/686Y10T477/6934Y10T477/693625Y10T477/693635
    • An electronic control system for scheduling gearshifts in an automatic transmission includes storing in electronic memory accessible to a microprocessor, functions relating vehicle speed to throttle position, one function being related to each upshift and downshift. Gearshifts are made by probing computer memory with current values for throttle position and vehicle speed, and determining on the basis of the stored shift schedule whether an upshift or downshift is required. Upshift points are determined also on the basis of an empirically determined function relating throttle position and vehicle acceleration immediately before an upshift. Shift control logic commands an upshift on the basis of a predetermined shift schedule, provided minimum vehicle acceleration-engine throttle position criteria are satisfied. Vehicle acceleration and speed from stored schedules of gearshift functions are corrected automatically and continually by a calculated ratio to account for changes in the driveline components from the components originally installed in the powertrain of which the transmission is a member and differences these component changes produce from a calculated base NOV value.
    • 一种用于调度自动变速器中的变速器的电子控制系统包括存储在微处理器可访问的电子存储器中,将车速与油门位置相关联的功能,与每次升档和降档有关的功能。 通过用计算机存储器探测节流位置和车速的当前值,并根据存储的换档计划来确定是否需要升档或降挡来进行换档。 换档点也是基于经验确定的功能,与功能相关的节气门位置和车辆加速之前立即升档。 只要满足最小车辆加速度 - 发动机节气门位置准则,换档控制逻辑基于预定的换档计划命令升档。 从存储的换档功能表中的车辆加速度和速度可以通过计算的比例自动和持续地校正,以解释传动系统部件中原始安装在传动系统的传动系中的部件的变化, 计算基本NOV值。