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1. 发明申请

US20080021614A1 CONTROLLER FOR ELECTRIC POWER STEERING APPARATUS 审中-公开
标题翻译：电动转向装置控制器
公开(公告)号：US20080021614A1
公开(公告)日：2008-01-24
申请号：US11780003
申请日：2007-07-19
申请人： Shuji ENDO , Yuho AOKI , Apiwat REUNGWETWATTANA
发明人： Shuji ENDO , Yuho AOKI , Apiwat REUNGWETWATTANA
IPC分类号： B62D5/04 , B62D1/16
CPC分类号： B62D6/008 , B62D5/0463
摘要： A computed SAT value SATa is computed, and an estimated SAT value SATb is estimated from lateral force. A grip loss level “g” is computed from difference between the computed self aligning torque value SATA and the estimated SAT value SATb. Torque correction value ΔT which becomes greater with an increase in grip loss level “g” and an increase in angular speed ω is set in accordance with the grip loss level “g” and the angular speed ω of an electric motor 12 serving as corresponding steering angular speed. The corresponding torque correction value ΔT is subtracted from the current command value Itv responsive to the steering torque T and the vehicle speed V, thereby correcting the current command value Itv. The thus-corrected current command value Itv is taken as a steering assist command value Im, and the electric motor 12 is driven based on the steering assist command value.
摘要翻译：计算出计算出的SAT值SATa，并且从侧向力估计估计的SAT值SATb。由计算出的自对准扭矩值SATA和估计的SAT值SATb之间的差计算抓地力损失水平“g”。根据握力损失水平“g”和用作相应转向器的电动机12的角速度ω设定扭矩校正值DeltaT，随着握力损失水平“g”的增加和角速度ω的增加而变大角速度。根据转向转矩T和车速V，从当前指令值Itv中减去相应的扭矩校正值DeltaT，从而校正当前指令值Itv。将如此校正的电流指令值Itv作为转向辅助指令值Im，并且基于转向辅助指令值来驱动电动机12。

2. 发明申请

US20080294313A1 ELECTRIC POWER STEERING APPARATUS 审中-公开
标题翻译：电动转向装置
公开(公告)号：US20080294313A1
公开(公告)日：2008-11-27
申请号：US12126587
申请日：2008-05-23
申请人： Yuho AOKI , Shuji ENDO , Tomonori HISANAGA
发明人： Yuho AOKI , Shuji ENDO , Tomonori HISANAGA
IPC分类号： B62D6/10
CPC分类号： B62D5/0463 , B60W50/0205 , B62D5/0484 , B62D5/049 , B62D6/006
摘要： An electric power steering apparatus includes a first torque command value calculating means that calculates a first torque command value on the basis of steering torque detected by a steering torque detecting means, a malfunction torque detecting means that detects malfunction of the steering torque detecting means, and a self aligning torque estimating means that estimates self aligning torque transmitted from a road surface to a steering mechanism, and the apparatus further includes a second torque command value calculating means that calculates a torque command value on the basis of the self aligning torque estimated by the self aligning torque estimating means, and an switching means that selects the second torque command value calculating means.
摘要翻译：电动助力转向装置包括第一转矩指令值计算装置，该第一转矩指令值计算装置基于由转向转矩检测装置检测的转向转矩来计算第一转矩指令值，检测转向转矩检测装置的故障的故障转矩检测装置，以及估计从路面传递到转向机构的自对准扭矩的自对准转矩估计装置，并且该装置还包括：第二转矩指令值计算装置，其基于由所述转向机构估计的自对准转矩来计算转矩指令值; 自对准转矩估计装置，以及选择第二转矩指令值计算装置的开关装置。

3. 发明申请

US20070273317A1 CONTROL APPARATUS OF ELECTRIC POWER STEERING APPARATUS 审中-公开
标题翻译：电力转向装置控制装置
公开(公告)号：US20070273317A1
公开(公告)日：2007-11-29
申请号：US11752949
申请日：2007-05-24
申请人： Shuji ENDO , Yuho AOKI , Takeshi HARA
发明人： Shuji ENDO , Yuho AOKI , Takeshi HARA
IPC分类号： H02P7/00
CPC分类号： B62D5/0466
摘要： In a control apparatus of an electric power steering apparatus constructed so as to calculate a current command value of a motor for applying steering assist force to a steering mechanism based on steering torque and a vehicle speed and drive and control the motor based on the current command value, there are provided an SAT detection part for detecting or estimating an SAT detection value, a standard SAT calculation part for calculating a standard SAT value based on a steering angle and the vehicle speed, and a correction part for calculating a correction amount based on the SAT detection value and the standard SAT value and correcting the current command value.
摘要翻译：在电动助力转向装置的控制装置中，该电动助力转向装置被构造成基于转向转矩和车速来计算用于向转向机构施加转向辅助力的电动机的电流指令值，并且基于当前指令来驱动和控制电动机提供了用于检测或估计SAT检测值的SAT检测部分，用于基于转向角和车速计算标准SAT值的标准SAT计算部分和用于基于转向角和车速计算校正量的校正部分 SAT检测值和标准SAT值，并修正当前的命令值。

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