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1. 发明授权

US06976388B2 Diagnostic method for a torque control of an electrically variable transmission 有权
标题翻译：电动变速器转矩控制的诊断方法
公开(公告)号：US06976388B2
公开(公告)日：2005-12-20
申请号：US10846142
申请日：2004-05-14
申请人： Anthony H. Heap , Tung-Ming Hsieh , Gregory A. Hubbard , Todd M. Steinmetz , Xuefeng T. Tao
发明人： Anthony H. Heap , Tung-Ming Hsieh , Gregory A. Hubbard , Todd M. Steinmetz , Xuefeng T. Tao
IPC分类号： B60K1/02 , B60W20/00 , B60W50/02 , F16H3/72 , F16H59/14 , G01M13/02
CPC分类号： B60K6/365 , B60K1/02 , B60K6/48 , B60W20/11 , B60W50/0205 , F16H3/728 , F16H2200/201 , Y02T10/6221
摘要： A condition of impaired speed and torque control of a parallel electrically variable transmission due to factors beyond nominal modeling and estimation errors is diagnosed under low speed operation. The transmission includes at least one electric machine and a motor torque controller for regulating the transmission input speed and output torque. The motor torque controller includes an open-loop control path based on predetermined torques and accelerations and a closed loop control path based on input speed error. The presence of a larger than expected closed-loop correction magnitude, combined with low output speed and one or more other conditions is used to diagnose a condition of potential torque error, in which case the transmission control is altered to prevent unwanted operation.
摘要翻译：在低速运行下诊断由于超出标称建模和估计误差的因素而导致的平行电动变速器的速度和转矩控制受损的条件。变速器包括至少一个电机和用于调节变速器输入速度和输出转矩的电动机转矩控制器。电动机转矩控制器包括基于预定转矩和加速度的开环控制路径和基于输入速度误差的闭环控制路径。使用大于预期的闭环校正幅度以及低输出速度和一个或多个其他条件的存在来诊断潜在的扭矩误差的情况，在这种情况下改变传输控制以防止不期望的操作。

2. 发明授权

US07163487B2 Engine retard operation scheduling and management in a hybrid vehicle 有权
标题翻译：混合动力汽车的发动机延迟运行调度和管理
公开(公告)号：US07163487B2
公开(公告)日：2007-01-16
申请号：US10846001
申请日：2004-05-14
申请人： Xuefeng T. Tao , Gregory A. Hubbard , Tung-Ming Hsieh , Anthony H. Heap
发明人： Xuefeng T. Tao , Gregory A. Hubbard , Tung-Ming Hsieh , Anthony H. Heap
IPC分类号： B60W10/06
CPC分类号： B60W20/13 , B60K6/445 , B60L2240/423 , B60T1/10 , B60T2270/611 , B60T2270/613 , B60W10/06 , B60W10/08 , B60W10/105 , B60W10/196 , B60W10/26 , B60W20/00 , B60W2510/244 , B60W2710/0644 , B60W2710/0666 , B60W2710/083 , Y02T10/6239 , Y02T10/642 , Y10S903/907 , Y10T477/23 , Y10T477/38
摘要： A hybrid vehicle includes a powertrain having a retarded diesel engine, an electric machine and energy storage system. The engine and motor are operatively coupled through one or more planetary gearsets and selective coupling paths in accordance with application and release of various torque transfer devices to a drivetrain via an output. Regenerative and retarded engine braking are coordinated to provide priority to energy return to an energy storage system in accordance with predetermined power flow limits.
摘要翻译：混合动力车辆包括具有延迟柴油发动机的动力系，电动机和储能系统。发动机和电动机通过一个或多个行星齿轮组和选择性联接路径可操作地联接，根据各种扭矩传递装置通过输出向传动系的应用和释放。协调再生和延迟发动机制动，以便根据预定的功率流量限制优先重新向能量储存系统返回。

3. 发明授权

US07131708B2 Coordinated regenerative and engine retard braking for a hybrid vehicle 有权
标题翻译：用于混合动力车辆的协调再生和发动机延迟制动
公开(公告)号：US07131708B2
公开(公告)日：2006-11-07
申请号：US10845994
申请日：2004-05-14
申请人： Xuefeng T. Tao , Gregory A. Hubbard , Tung-Ming Hsieh , Anthony H. Heap
发明人： Xuefeng T. Tao , Gregory A. Hubbard , Tung-Ming Hsieh , Anthony H. Heap
IPC分类号： B60T8/64
CPC分类号： F02D9/06 , B60T1/10 , B60W10/06 , B60W10/10 , B60W10/196 , B60W20/11 , B60W2710/0644 , F02D13/04 , F02D41/12 , Y10T477/24
摘要： A hybrid vehicle includes a powertrain having a retarded diesel engine, an electric machine and energy storage system. The engine and motor are operatively coupled through one or more planetary gearsets and selective coupling paths in accordance with application and release of various torque transfer devices to a drivetrain via an output. Regenerative and retarded engine braking are coordinated to provide priority to energy return to an energy storage system in accordance with predetermined power flow limits. Power flow in excess of the limits are handled by increased engine retard braking contributions via engine speed increases.
摘要翻译：混合动力车辆包括具有延迟柴油发动机的动力系，电动机和储能系统。发动机和电动机通过一个或多个行星齿轮组和选择性联接路径可操作地联接，根据各种扭矩传递装置通过输出向传动系的应用和释放。协调再生和延迟发动机制动，以便根据预定的功率流量限制优先重新向能量储存系统返回。超过限制的动力流量通过发动机转速增加而增加发动机延迟制动贡献来处理。

4. 发明授权

US07110869B2 Hybrid transmission member speed determination, sensor diagnostics and fault recovery 有权
标题翻译：混合传动部件速度确定，传感器诊断和故障恢复
公开(公告)号：US07110869B2
公开(公告)日：2006-09-19
申请号：US10686004
申请日：2003-10-14
申请人： Xuefeng T. Tao , Tung-Ming Hsieh , Jy-Jen F. Sah
发明人： Xuefeng T. Tao , Tung-Ming Hsieh , Jy-Jen F. Sah
IPC分类号： G01M17/00
CPC分类号： B60W20/50 , B60K6/445 , B60W10/08 , B60W20/00 , B60W2050/0215 , F16H59/38 , F16H59/40 , F16H59/46 , F16H59/70 , F16H61/12 , F16H2059/366 , F16H2061/1212 , F16H2061/122 , F16H2061/1284 , G05B9/03 , G05B23/0235 , Y02T10/6239 , Y10T477/30
摘要： A hybrid powertrain has a transmission including a motor and a sensor for sensing rotation of the transmission output member. Motor speed signals are available from the motor controller. Speed signals representative of output speed are calculated from both the speed sensor and the motor speed in conjunction with known speed relationships between the motor and the output. A variety of in-range and dropped signal diagnostics is performed for the sensors and are used in the development of a set of software switches for selecting which of the speed sources is used as the output speed.
摘要翻译：混合动力系具有包括用于感测变速器输出构件的旋转的电动机和传感器的变速器。电机速度信号可从电机控制器获得。结合电机和输出之间的已知速度关系，可以从速度传感器和电机速度两方面计算代表输出速度的速度信号。为传感器执行了各种范围内和丢弃的信号诊断，并用于开发一组软件开关，用于选择哪个速度源用作输出速度。

5. 发明授权

US07222014B2 Method for automatic traction control in a hybrid electric vehicle 有权
标题翻译：混合动力汽车自动牵引力控制方法
公开(公告)号：US07222014B2
公开(公告)日：2007-05-22
申请号：US10846016
申请日：2004-05-14
申请人： Xuefeng T. Tao , Todd M. Steinmetz , Tung-Ming Hsieh , William R. Cawthorne
发明人： Xuefeng T. Tao , Todd M. Steinmetz , Tung-Ming Hsieh , William R. Cawthorne
IPC分类号： G06F7/00
CPC分类号： B60W20/00 , B60K1/02 , B60K6/40 , B60K6/445 , B60W10/06 , B60W10/08 , B60W30/18172 , B60W2720/30 , F16H3/728 , F16H2037/0866 , F16H2037/102 , F16H2037/104 , F16H2037/106 , F16H2200/201 , F16H2200/2035 , Y02T10/6239 , Y02T10/6286 , Y02T10/7258
摘要： A method for providing traction control in vehicle powertrain systems is particularly adapted for traction control in a powertrain system of a hybrid electric vehicle comprising an internal combustion engine, an electric machine and a transmission that is operatively coupled to the electric machine and the engine and adapted to provide a transmission torque output in response to a transmission torque input received as a torque output from either or both of the engine and the electric machine. The method is adapted to utilize conventional traction control and engine control hardware, software and communication standards to implement traction control. In one embodiment of the invention, a conventional traction controller is used to detect a wheel spin condition and provide a plurality of first output torque command messages in response thereto. The plurality of first output torque command messages are used to obtain a torque reduction which is applied to a reference output torque to obtain a corresponding plurality of traction control output torque commands for the powertrain system during the wheel spin condition. A rate limit may also be applied to control the rate of change between successive ones of the traction control output torque commands in order to reduce the possibility of extension of the wheel spin condition, or recurrence of another wheel spin condition. Each traction control output torque command may be used to determine an associated traction control engine torque output command and traction control electric machine torque output command.
摘要翻译：用于在车辆动力系统中提供牵引力控制的方法特别适用于混合动力车辆的动力系统中的牵引力控制，所述混合动力车辆包括内燃机，电机和可操作地耦合到电机和发动机的变速器，以响应于作为从发动机和电机中的一个或两者输出的扭矩接收的传动转矩输入来提供传动转矩输出。该方法适用于利用传统的牵引力控制和发动机控制硬件，软件和通信标准来实现牵引力控制。在本发明的一个实施例中，传统的牵引控制器用于检测车轮旋转状态，并响应于此提供多个第一输出转矩指令消息。多个第一输出转矩指令消息用于获得施加到参考输出转矩的转矩降低，以在车轮旋转状态期间获得用于动力系统的相应的多个牵引控制输出转矩指令。也可以应用速率限制来控制牵引控制输出转矩指令中连续的转矩指令之间的变化率，以便减少车轮旋转状态的延长或另一个车轮旋转状态的再现。每个牵引力控制输出转矩指令可用于确定相关的牵引力控制发动机转矩输出指令和牵引力控制电机转矩输出指令。

6. 发明授权

US07028657B2 Multi-stage compression ignition engine start 有权
标题翻译：多级压缩点火发动机起动
公开(公告)号：US07028657B2
公开(公告)日：2006-04-18
申请号：US10846013
申请日：2004-05-14
申请人： Jy-Jen F. Sah , Gregory A. Hubbard , William R. Cawthorne , Xuefeng T. Tao , Todd M. Steinmetz
发明人： Jy-Jen F. Sah , Gregory A. Hubbard , William R. Cawthorne , Xuefeng T. Tao , Todd M. Steinmetz
IPC分类号： F02N11/00
CPC分类号： F02D41/064 , F02N11/08 , F02N2300/102
摘要： A powertrain includes a diesel compression engine and an electric machine operatively coupled thereto and effective to rotate the engine during engine cranking. Cold engine cranking is accomplished in a staged manner including a first stage wherein the engine is cranked to a first speed below the resonant speed of the coupled engine and electric machine combination for a first duration and thereafter cranked to a second speed above the resonant speed for a second duration. Transition out of cranking at the first and second speeds is accomplished when relative combustion stability is demonstrated. Cranking at the first or second speed is aborted when excessive crank times or if low battery voltages are observed. A third stage is included wherein the engine is cranked to a third speed below the engine idle speed. Transition out of cranking at the third speed is accomplished when relative combustion stability is demonstrated, whereafter normal engine control takes over.
摘要翻译：动力系包括柴油压缩发动机和可操作地联接到其上的电机，并且在发动机起动期间有效地使发动机旋转。冷发动机起动以分阶段方式实现，包括第一阶段，其中发动机起动至低于联合发动机和电机组合的共振速度的第一速度，并且之后起动至高于谐振速度的第二速度第二个持续时间。当相对燃烧稳定性得到证实时，可以以第一和第二速度转换起动。在超过曲柄时间或观察到电池电压不足时，以第一或第二速度起动。包括第三级，其中发动机起动至低于发动机怠速转速的第三速度。当相对燃烧稳定性得到证明时，在第三速度下转变为起动，此后正常的发动机控制接管。

7. 发明授权

US5392642A System for detection of low power in at least one cylinder of a multi-cylinder engine 失效
标题翻译：用于在多气缸发动机的至少一个气缸中检测低功率的系统
公开(公告)号：US5392642A
公开(公告)日：1995-02-28
申请号：US84071
申请日：1993-06-30
申请人： Xuefeng T. Tao
发明人： Xuefeng T. Tao
IPC分类号： G01M15/04 , G01H17/00 , G01L5/00 , G01M15/12 , G01M15/00
CPC分类号： G01M15/12 , F02D35/02 , F02D2041/288 , F02D2200/025 , F02D2200/1015 , F02D35/027
摘要： Vibration sensors are used to monitor the resonant frequency of each cylinder of a multi-cylinder engine and the detection of an abnormal resonant frequency, i.e., one outside of an established range, is used as an indication that one or more specific cylinders is operating at an improper power level. Vibration signals associated with combustion in each cylinder can be used to perform FFT (Fast Fourier Transformation) with the combustion resonant frequencies for all engine cycles being determined and an averaged resonant frequency for each cylinder obtained. Shifts in the averaged resonant frequency or the detection of a zero resonant frequency for only one of the cylinders can be used as an indication that the cylinder with the shifted or zero resonant frequency is experiencing a low power condition, including misfiring.
摘要翻译：振动传感器用于监测多气缸发动机的每个气缸的谐振频率，并且使用异常谐振频率（即，在建立的范围之外的一个）的检测作为一个或多个特定气缸在不正确的权力水平。与每个气缸中的燃烧相关的振动信号可用于执行FFT（快速傅里叶变换），其中确定所有发动机循环的燃烧谐振频率，并获得每个气缸的平均谐振频率。可以使用平均谐振频率的移动或仅对一个气缸检测零谐振频率作为具有移位或零谐振频率的气缸经历低功率状况（包括失火）的指示。

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