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公开(公告)号：US20050060077A1
公开(公告)日：2005-03-17
申请号：US10661954
申请日：2003-09-12
申请人： Joseph Slayton , Bradley Riedle , Pramod Jain , Balaram Sankpal , Steven Meisner , David Bidner , Armand Giannamore
发明人： Joseph Slayton , Bradley Riedle , Pramod Jain , Balaram Sankpal , Steven Meisner , David Bidner , Armand Giannamore
IPC分类号： B60W10/06 , B60W30/18 , F16H59/36 , F16H59/38 , F16H59/44 , F16H61/04 , F16H63/50 , G06F7/00
CPC分类号： B60W10/06 , B60W10/04 , B60W10/11 , B60W10/115 , B60W30/18 , B60W30/1819 , B60W2510/0652 , B60W2510/1015 , B60W2510/104 , B60W2710/0605 , B60W2710/0616 , B60W2710/0622 , B60W2710/0666 , F16H59/36 , F16H59/44 , F16H61/0437 , F16H63/502 , F16H2059/363 , F16H2059/366 , F16H2059/385 , F16H2061/0496 , Y02T10/76 , Y10T477/6403 , Y10T477/693636
摘要： An automatic transmission ratio shift control system and method for a powertrain having an engine and multiple-ratio gearing controlled by friction elements actuated by hydraulic pressure, an electronic controller for establishing torque transitions among the friction elements as the gear ratio changes, the engine speed being controlled by an electronic throttle control. The strategy employs an electronic throttle and closed loop engine speed control and uses fuel and air as an energy source to increase engine speed during a power-off downshift. The engine speed is boosted to a level close to the synchronous speed in conjunction with release of the off-going friction element. The on-coming friction element is then applied as the engine speed approaches a desired speed. The engine speed increase is timed to lead an increase in torque converter speed.
摘要翻译： 一种用于具有由液压致动的摩擦元件控制的发动机和多级传动装置的动力系的自动变速比变速控制系统和方法，用于在齿轮比变化时在摩擦元件之间建立转矩转换的电子控制器，发动机转速为 由电子节气门控制控制。 该策略采用电子节气门和闭环发动机转速控制，并且在断电降档期间使用燃料和空气作为能源来提高发动机转速。 发动机转速提高到接近同步速度的水平，同时释放离去的摩擦元件。 然后随着发动机速度接近期望的速度而应用即将到来的摩擦元件。 发动机转速提高的时间是引起变矩器转速的增加。
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公开(公告)号：US07089102B2
公开(公告)日：2006-08-08
申请号：US10661954
申请日：2003-09-12
申请人： Joseph Slayton , Bradley Riedle , Pramod Jain , Balaram Sankpal , Steven Meisner , David Bidner , Armand Giannamore
发明人： Joseph Slayton , Bradley Riedle , Pramod Jain , Balaram Sankpal , Steven Meisner , David Bidner , Armand Giannamore
CPC分类号： B60W10/06 , B60W10/04 , B60W10/11 , B60W10/115 , B60W30/18 , B60W30/1819 , B60W2510/0652 , B60W2510/1015 , B60W2510/104 , B60W2710/0605 , B60W2710/0616 , B60W2710/0622 , B60W2710/0666 , F16H59/36 , F16H59/44 , F16H61/0437 , F16H63/502 , F16H2059/363 , F16H2059/366 , F16H2059/385 , F16H2061/0496 , Y02T10/76 , Y10T477/6403 , Y10T477/693636
摘要： An automatic transmission ratio shift control system and method for a powertrain having an engine and multiple-ratio gearing controlled by friction elements actuated by hydraulic pressure, an electronic controller for establishing torque transitions among the friction elements as the gear ratio changes, the engine speed being controlled by an electronic throttle control. The strategy employs an electronic throttle and closed loop engine speed control and uses fuel and air as an energy source to increase engine speed during a power-off downshift. The engine speed is boosted to a level close to the synchronous speed in conjunction with release of the off-going friction element. The on-coming friction element is then applied as the engine speed approaches a desired speed. The engine speed increase is timed to lead an increase in torque converter speed.
摘要翻译： 一种用于具有由液压致动的摩擦元件控制的发动机和多级传动装置的动力系的自动变速比变速控制系统和方法，用于在齿轮比变化时在摩擦元件之间建立转矩转换的电子控制器，发动机转速为 由电子节气门控制控制。 该策略采用电子节气门和闭环发动机转速控制，并且在断电降档期间使用燃料和空气作为能源来提高发动机转速。 发动机转速提高到接近同步速度的水平，同时释放离去的摩擦元件。 然后随着发动机速度接近期望的速度而应用即将到来的摩擦元件。 发动机转速提高的时间是引起变矩器转速的增加。
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