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1. 发明授权

US08919323B2 System and method for controlling engine speed 有权
标题翻译：控制发动机转速的系统和方法
公开(公告)号：US08919323B2
公开(公告)日：2014-12-30
申请号：US13431317
申请日：2012-03-27
申请人： Krishnendu Kar , Leon Cribbins
发明人： Krishnendu Kar , Leon Cribbins
IPC分类号： F02D43/04 , F02D43/00
CPC分类号： F02D43/04 , F02D37/02 , F02D41/0002 , F02D41/0225 , F02D41/1497 , F02D43/00 , F02D2250/18
摘要： A system according to the principles of the present disclosure includes a gain determination module, a desired torque determination module, and an engine operation control module. The gain determination module determines a gain based on a desired speed of an engine and a change rate of an actual speed of the engine. The desired torque determination module determines a desired torque based on the gain and a difference between the actual speed and the desired speed. The engine operation control module controls at least one of a throttle area, a spark timing, and a fueling rate based on the desired torque.
摘要翻译：根据本公开的原理的系统包括增益确定模块，期望的扭矩确定模块和发动机操作控制模块。增益确定模块基于发动机的期望速度和发动机的实际速度的变化率来确定增益。期望的扭矩确定模块基于增益和实际速度和期望速度之间的差异来确定期望的扭矩。发动机运转控制模块基于期望的转矩来控制节气门面积，火花正时以及加油速率中的至少一个。

2. 发明申请

US20130255625A1 SYSTEM AND METHOD FOR CONTROLLING ENGINE SPEED 有权
标题翻译：用于控制发动机转速的系统和方法
公开(公告)号：US20130255625A1
公开(公告)日：2013-10-03
申请号：US13431317
申请日：2012-03-27
申请人： Krishnendu Kar , Leon Cribbins
发明人： Krishnendu Kar , Leon Cribbins
IPC分类号： F02D41/14
CPC分类号： F02D43/04 , F02D37/02 , F02D41/0002 , F02D41/0225 , F02D41/1497 , F02D43/00 , F02D2250/18
摘要： A system according to the principles of the present disclosure includes a gain determination module, a desired torque determination module, and an engine operation control module. The gain determination module determines a gain based on a desired speed of an engine and a change rate of an actual speed of the engine. The desired torque determination module determines a desired torque based on the gain and a difference between the actual speed and the desired speed. The engine operation control module controls at least one of a throttle area, a spark timing, and a fueling rate based on the desired torque.
摘要翻译：根据本公开的原理的系统包括增益确定模块，期望的扭矩确定模块和发动机操作控制模块。增益确定模块基于发动机的期望速度和发动机的实际速度的变化率来确定增益。期望的扭矩确定模块基于增益和实际速度和期望速度之间的差异来确定期望的扭矩。发动机运转控制模块基于期望的转矩来控制节气门面积，火花正时以及加油速率中的至少一个。

3. 发明授权

US08657721B2 Driveline stiffness relaxation systems and methods for DFCO operation 有权
标题翻译： DFCO操作的传动系刚度松弛系统和方法
公开(公告)号：US08657721B2
公开(公告)日：2014-02-25
申请号：US13101494
申请日：2011-05-05
申请人： Christopher E. Whitney , Jeremy V. Horgan , Scott A. Hearld , Lars Mikael Buur , Ryan Goode , Krishnendu Kar
发明人： Christopher E. Whitney , Jeremy V. Horgan , Scott A. Hearld , Lars Mikael Buur , Ryan Goode , Krishnendu Kar
IPC分类号： B60W10/02 , B60W10/04
CPC分类号： F16H61/143 , B60Y2300/46 , F16H2061/145 , F16H2061/147 , Y10T74/20018 , Y10T477/6422 , Y10T477/755
摘要： A powertrain system includes an engine control module that generates a negative torque transition signal based on a pending negative torque event of an engine. A transmission control module receives the negative torque transition signal from the engine control module. The transmission control module increases a slip speed of a torque converter clutch in preparation for the pending negative torque event by adjusting pressure in the torque converter clutch prior to the pending negative torque event. The transmission control module decreases the slip speed in the torque converter clutch based on completion of a transition at least one of to the pending negative torque event and from the pending negative torque event.
摘要翻译：动力系统包括发动机控制模块，其基于发动机的未决负转矩事件产生负转矩转换信号。传动控制模块从发动机控制模块接收负扭矩转换信号。变速器控制模块通过在悬架负转矩事件之前调节变矩器离合器中的压力来增加变矩器离合器的滑移速度，以准备待处理的负转矩事件。变速器控制模块基于完成到待处理的负转矩事件和未决负转矩事件中的至少一个的转换完成，来降低变矩器离合器中的滑差速度。

4. 发明申请

US20120234123A1 DRIVELINE STIFFNESS RELAXATION SYSTEMS AND METHODS FOR DFCO OPERATION 有权
标题翻译：用于DFCO操作的驱动力强度松弛系统和方法
公开(公告)号：US20120234123A1
公开(公告)日：2012-09-20
申请号：US13101494
申请日：2011-05-05
申请人： Christopher E. Whitney , Jeremy V. Horgan , Scott A. Hearld , Lars Mikael Buur , Ryan Goode , Krishnendu Kar
发明人： Christopher E. Whitney , Jeremy V. Horgan , Scott A. Hearld , Lars Mikael Buur , Ryan Goode , Krishnendu Kar
IPC分类号： F16H59/00
CPC分类号： F16H61/143 , B60Y2300/46 , F16H2061/145 , F16H2061/147 , Y10T74/20018 , Y10T477/6422 , Y10T477/755
摘要： A powertrain system includes an engine control module that generates a negative torque transition signal based on a pending negative torque event of an engine. A transmission control module receives the negative torque transition signal from the engine control module. The transmission control module increases a slip speed of a torque converter clutch in preparation for the pending negative torque event by adjusting pressure in the torque converter clutch prior to the pending negative torque event. The transmission control module decreases the slip speed in the torque converter clutch based on completion of a transition at least one of to the pending negative torque event and from the pending negative torque event.
摘要翻译：动力系统包括发动机控制模块，其基于发动机的未决负转矩事件产生负转矩转换信号。传动控制模块从发动机控制模块接收负扭矩转换信号。传动控制模块通过在悬架负转矩事件之前调节变矩器离合器中的压力来增加变矩器离合器的滑移速度，以准备待处理的负转矩事件。变速器控制模块基于完成到待处理的负转矩事件和未决负转矩事件中的至少一个的转换完成，来降低变矩器离合器中的滑差速度。

5. 发明授权

US09080515B2 System and method for controlling engine torque to prevent driveline bump when a driver depresses an accelerator pedal 有权
标题翻译：用于控制发动机扭矩的系统和方法，以在驾驶员按下加速器踏板时防止传动系凸起
公开(公告)号：US09080515B2
公开(公告)日：2015-07-14
申请号：US13605270
申请日：2012-09-06
申请人： Krishnendu Kar , Bret J. Keller
发明人： Krishnendu Kar , Bret J. Keller
IPC分类号： F02D28/00 , F02D9/10 , F02D41/10
CPC分类号： F02D9/10 , F02D41/107 , F02D2250/21 , F02D2250/26
摘要： A system according the principles of the present disclosure includes a torque determination module and a torque limit module. The torque determination module determines a first torque that prevents an engine from stalling. The torque limit module limits engine torque based on the first torque when a driver actuates an accelerator pedal from a first position in which the accelerator pedal is not depressed to a second position in which the accelerator pedal is depressed.
摘要翻译：根据本公开的原理的系统包括转矩确定模块和转矩限制模块。扭矩确定模块确定防止发动机停转的第一扭矩。扭矩限制模块基于第一扭矩来限制发动机扭矩，当驾驶员从加速踏板未被压下的第一位置致动加速器踏板到加速踏板被按下的第二位置时。

6. 发明授权

US09091219B2 Torque control system and method for acceleration changes 有权
标题翻译：扭矩控制系统及加速变化方法
公开(公告)号：US09091219B2
公开(公告)日：2015-07-28
申请号：US13037493
申请日：2011-03-01
申请人： Krishnendu Kar , Pahngroc Oh , Andrew W. Baur
发明人： Krishnendu Kar , Pahngroc Oh , Andrew W. Baur
IPC分类号： G06F7/00 , G06F17/00 , G06F19/00 , F02D11/10 , F02D41/10
CPC分类号： F02D11/105 , F02D41/107 , F02D2250/21
摘要： A control system includes a driver torque determination module, a lash zone torque determination module, a rate limit determination module, and an immediate torque determination module. The driver torque determination module determines a driver torque request when a driver depresses an accelerator pedal while a vehicle is coasting. The lash zone torque determination module determines a lash zone torque based on a transmission gear and an engine speed. The rate limit determination module determines an adjustment rate limit based on a previous immediate torque request, the lash zone torque, and the transmission gear. The immediate torque determination module determines a present immediate torque request based on the driver torque request and selectively determines the present immediate torque request based on the adjustment rate limit.
摘要翻译：控制系统包括驾驶员扭矩确定模块，间隙扭矩确定模块，速率限制确定模块和立即扭矩确定模块。驾驶员转矩确定模块在车辆滑行时驾驶员按下加速器踏板时确定驾驶员转矩请求。间隙扭矩确定模块基于传动齿轮和发动机速度确定间隙扭矩。速率限制确定模块基于先前的即时转矩请求，间隙扭矩和传动齿轮来确定调整速率限制。立即转矩确定模块基于驾驶员转矩请求确定当前立即转矩请求，并且基于调整速率极限选择性地确定当前立即转矩请求。

7. 发明申请

US20130325291A1 SYSTEM AND METHOD FOR CONTROLLING ENGINE TORQUE TO PREVENT DRIVELINE BUMP WHEN A DRIVER DEPRESSES AN ACCELERATOR PEDAL 有权
标题翻译：用于控制发动机扭矩的系统和方法，以防止驾驶员缓解加速踏板
公开(公告)号：US20130325291A1
公开(公告)日：2013-12-05
申请号：US13605270
申请日：2012-09-06
申请人： Krishnendu Kar , Bret J. Keller
发明人： Krishnendu Kar , Bret J. Keller
IPC分类号： F02D28/00
CPC分类号： F02D9/10 , F02D41/107 , F02D2250/21 , F02D2250/26
摘要： A system according the principles of the present disclosure includes a torque determination module and a torque limit module. The torque determination module determines a first torque that prevents an engine from stalling. The torque limit module limits engine torque based on the first torque when a driver actuates an accelerator pedal from a first position in which the accelerator pedal is not depressed to a second position in which the accelerator pedal is depressed.
摘要翻译：根据本公开的原理的系统包括转矩确定模块和转矩限制模块。扭矩确定模块确定防止发动机停转的第一扭矩。扭矩限制模块基于第一扭矩来限制发动机扭矩，当驾驶员从加速踏板未被压下的第一位置致动加速器踏板到加速踏板被按下的第二位置时。

8. 发明申请

US20120150399A1 TORQUE CONTROL SYSTEM AND METHOD FOR ACCELERATION CHANGES 有权
标题翻译：扭矩控制系统及加速变更方法
公开(公告)号：US20120150399A1
公开(公告)日：2012-06-14
申请号：US13037493
申请日：2011-03-01
申请人： Krishnendu Kar , Pahngroc Oh , Andrew W. Baur
发明人： Krishnendu Kar , Pahngroc Oh , Andrew W. Baur
IPC分类号： B60W10/06 , B60W30/18 , B60W10/10 , G06F19/00
CPC分类号： F02D11/105 , F02D41/107 , F02D2250/21
摘要： A control system includes a driver torque determination module, a lash zone torque determination module, a rate limit determination module, and an immediate torque determination module. The driver torque determination module determines a driver torque request when a driver depresses an accelerator pedal while a vehicle is coasting. The lash zone torque determination module determines a lash zone torque based on a transmission gear and an engine speed. The rate limit determination module determines an adjustment rate limit based on a previous immediate torque request, the lash zone torque, and the transmission gear. The immediate torque determination module determines a present immediate torque request based on the driver torque request and selectively determines the present immediate torque request based on the adjustment rate limit.
摘要翻译：控制系统包括驾驶员扭矩确定模块，间隙扭矩确定模块，速率限制确定模块和立即扭矩确定模块。驾驶员转矩确定模块在车辆滑行时驾驶员按下加速器踏板时确定驾驶员转矩请求。间隙扭矩确定模块基于传动齿轮和发动机速度确定间隙扭矩。速率限制确定模块基于先前的即时转矩请求，间隙扭矩和传动齿轮来确定调整速率限制。立即转矩确定模块基于驾驶员扭矩请求确定当前立即转矩请求，并且基于调整速率极限选择性地确定当前立即转矩请求。

9. 发明申请

US20110041802A1 CONTROL SYSTEM AND METHOD FOR IDLE SPEED CONTROL TORQUE RESERVE REDUCTION 有权
标题翻译：空转速度控制扭矩保持减少的控制系统和方法
公开(公告)号：US20110041802A1
公开(公告)日：2011-02-24
申请号：US12545318
申请日：2009-08-21
申请人： Krishnendu Kar , Daniel Lee Baibak
发明人： Krishnendu Kar , Daniel Lee Baibak
IPC分类号： F02D31/00
CPC分类号： F02D31/003 , F02D41/1497 , F02P5/045 , F02P5/152
摘要： A control system for an engine includes a speed error determination module that periodically determines an engine speed error rate based on a difference between a measured speed and a desired speed of the engine, and a torque reserve module that monitors the engine speed error rate and that selectively adjusts a torque reserve of the engine based on the engine speed error rate. The torque reserve module maintains the torque reserve at a predetermined first torque reserve amount while the engine speed error rate is less than a predetermined first error rate and selectively increases the torque reserve above the first torque reserve amount when the engine speed error rate increases above a predetermined second error rate greater than the first error rate. The torque reserve module decreases the torque reserve when the engine speed error rate decreases below the first error rate. A related method is also provided.
摘要翻译：用于发动机的控制系统包括速度误差确定模块，其基于发动机的测量速度和期望速度之间的差定期地确定发动机速度误差率，以及监视发动机速度误差率的扭矩储备模块，并且基于发动机转速误差率选择性地调节发动机的转矩储备。当发动机转速误差率小于预定的第一误差率时，转矩储备模块将转矩储备保持在预定的第一转矩储备量，并且当发动机转速误差率增加到高于预定的第二错误率大于第一错误率。当发动机转速误差率降低到低于第一误差率时，转矩储备模块减小转矩储备。还提供了相关的方法。

10. 发明授权

US06874360B1 Method of determining rubbing friction torque in a motor vehicle powertrain 失效
标题翻译：确定汽车动力总成摩擦转矩的方法
公开(公告)号：US06874360B1
公开(公告)日：2005-04-05
申请号：US10668383
申请日：2003-09-23
申请人： Krishnendu Kar , Sergio Eduardo Garcia
发明人： Krishnendu Kar , Sergio Eduardo Garcia
IPC分类号： G01L3/26 , G01M15/00
CPC分类号： G01L3/26
摘要： A method of determining the rubbing friction torque involves characterizing fuel cutoff engine deceleration, and calculating the rubbing friction torque for any combination of engine speed and powertrain temperature is calculated in accordance with a base point rubbing friction torque RFTbase determined at a base powertrain temperature Tbase and fuel cutoff characterization data. The calibration data characterizing fuel cutoff engine deceleration is obtained by alternately enabling and cutting off engine fuel delivery to cycle the engine speed between specified set points, and measuring and recording the engine deceleration during intervals of fuel cutoff. The rubbing friction torque RFTtest at a given test temperature Ttest is calculated according to R ⁢ ⁢ F ⁢ ⁢ T rest = ( R ⁢ ⁢ F ⁢ ⁢ T base + P ⁢ ⁢ F ⁢ ⁢ T base ) × D ⁢ ⁢ E ⁢ ⁢ C ⁢ ⁢ E ⁢ ⁢ L test D ⁢ ⁢ E ⁢ ⁢ C ⁢ ⁢ E ⁢ ⁢ L base - P ⁢ ⁢ F ⁢ ⁢ T test , where DECELtest and DECELbase are the fuel cutoff engine decelerations at the test and base points, respectively, and PFTtest, and PFTbase are the pumping friction torques at the test and base points, respectively.
摘要翻译：确定摩擦摩擦转矩的方法涉及表征燃料切断发动机减速度，并且根据在基本动力系温度T base处确定的基点摩擦摩擦转矩RFTbase来计算发动机转速和动力系温度的任何组合的摩擦摩擦转矩，以及燃料截止特征数据。表征燃料切断发动机减速度的校准数据是通过交替地使能和切断发动机燃料输送以循环指定设定点之间的发动机转速，以及在燃料切断间隔期间测量和记录发动机减速度而获得的。在给定的测试温度Ttest下的摩擦摩擦转矩RFT测试根据其中DECEL测试和DECELbase分别是测试和基点处的燃油切断发动机减速度，PFTtest和PFTbase是测试点和基点处的泵送摩擦转矩，分别。

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