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1. 发明申请

US20170217484A1 STEERING CONTROL DEVICE 有权
公开(公告)号：US20170217484A1
公开(公告)日：2017-08-03
申请号：US15501261
申请日：2014-09-12
申请人： Mitsubishi Electric Corporation
发明人： Taizo TODA , Kenji OGAWA , Masaya ENDO
IPC分类号： B62D6/00 , B62D5/04
CPC分类号： B62D6/00 , B62D5/046 , B62D5/0463 , B62D6/02 , B62D6/10
摘要： The steering control device includes: current command value 1 calculation unit 11 which determines current command value 1 based on a vehicle speed and a steering torque; current command value 2 calculation unit 14 which determines current command value 2 based on a filtered differential value of the steering torque; and current drive unit 10 which drives motor 5 so that the value of the motor current matches the sum of current command values 1 and 2. When a first crossover frequency represents the crossover frequency of control open loop characteristics in the steering control device as obtained when current command value 2 is determined using a differential value of the steering torque which has not been filtered, the notch frequency of the notch filter is set to be greater than the mechanical resonance frequency of the steering control device and smaller than the first crossover frequency.

2. 发明申请

US20160043683A1 MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD 有权
标题翻译：电机控制装置和电机控制方法
公开(公告)号：US20160043683A1
公开(公告)日：2016-02-11
申请号：US14781611
申请日：2014-02-18
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Kenji OGAWA
IPC分类号： H02P29/02 , H02P6/00
CPC分类号： H02P29/024 , B25J9/1674 , G05B9/02 , G05B19/4062 , G05D1/0077 , H02M1/10 , H02M1/32 , H02P6/14 , H02P6/34 , H02P29/0241 , H02P29/026
摘要： A motor control circuit controls an operation of a motor based on an input voltage and a control parameter. A voltage-abnormality detection unit detects abnormality of the input voltage by comparing the input voltage with an allowable voltage range. A memory stores therein a plurality of allowable voltage range candidates made to correspond to a plurality of reference voltages and a plurality of control parameter candidates made to correspond to the plurality of reference voltages. A reference-voltage acquisition unit acquires reference voltage information specifying one of the plurality of reference voltages. A selector selects one of the plurality of allowable voltage range candidates from the plurality of allowable voltage range candidates, corresponding to the one reference voltage, as the allowable voltage range and one of the plurality of control parameter candidates from the plurality of control parameter candidates, corresponding to the one reference voltage, as the control parameter based on the reference voltage information.
摘要翻译：马达控制电路基于输入电压和控制参数来控制马达的运行。电压异常检测单元通过将输入电压与容许电压范围进行比较来检测输入电压的异常。存储器中存储多个可对应于多个参考电压的容许电压范围候选以及与多个参考电压相对应的多个控制参数候选。参考电压获取单元获取指定多个参考电压之一的参考电压信息。一个选择器从多个可控电压范围候选中选择一个可允许的电压范围候选，对应于一个参考电压作为许可电压范围，并且从多个控制参数候选中选出多个控制参数候选中的一个，对应于一个参考电压，作为基于参考电压信息的控制参数。

3. 发明申请

US20150375777A1 STEERING CONTROL DEVICE, AND STEERING CONTROL METHOD 有权
标题翻译：转向控制装置和转向控制方法
公开(公告)号：US20150375777A1
公开(公告)日：2015-12-31
申请号：US14768096
申请日：2013-04-08
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Masaya ENDO , Yoshihiko KIMPARA , Kenji OGAWA , Taizo TODA
IPC分类号： B62D5/04
CPC分类号： B62D5/0463 , B62D5/0466
摘要： Provided is a steering control device, including: an actuator for applying a steering assist torque to a steering system of a vehicle; a vehicle turning state detection section for detecting a state amount representing a turning state of the vehicle; a steering-holding determination section for determining a steering-holding state of the steering system; a storing section for storing, when the steering-holding determination section determines that the steering system is in the steering-holding state, the state amount detected by the vehicle turning state detection section as a steering-holding determination state amount; a steering assist torque calculation section for calculating the steering assist torque based on an absolute value of the steering-holding determination state amount; and an actuator control section for controlling the actuator based on the calculated steering assist torque.
摘要翻译：提供一种转向控制装置，包括：用于向车辆的转向系统施加转向辅助转矩的致动器; 车辆转向状态检测部，用于检测表示车辆的转动状态的状态量; 用于确定转向系统的转向保持状态的转向保持确定部; 存储部，其在所述转向保持判定部判定为所述转向保持状态时，存储由所述车辆转向状态检测部检测出的状态量作为转向保持判定状态量; 转向辅助转矩计算部，其基于所述转向保持判定状态量的绝对值来计算所述转向辅助转矩; 以及用于基于计算出的转向辅助转矩来控制致动器的致动器控制部。

4. 发明申请

US20170369092A1 ELECTRIC POWER STEERING DEVICE 审中-公开
公开(公告)号：US20170369092A1
公开(公告)日：2017-12-28
申请号：US15541081
申请日：2015-02-26
申请人： Mitsubishi Electric Corporation
发明人： Hajime IIDA , Hiroshi GOKAN , Kenji OGAWA
IPC分类号： B62D5/04 , H02P6/06 , H02K1/27
CPC分类号： B62D5/046 , B62D15/0235 , H02K1/27 , H02K11/215 , H02K21/14 , H02P6/06 , H02P6/17 , H02P6/182 , H02P23/0086 , H02P23/03 , H02P2203/05
摘要： In an electric power steering device assisted by a brushless motor, an induced voltage from a brushless motor is detected when a main power supply is off. The motor is determined to be in a high rpm state when the induced voltage is in a first transient state from a voltage ≦a high rpm detection threshold Th1 to a voltage≧Th1, thereby setting an intermittent excitation cycle of a revolution angle sensor connected to the motor to a short cycle. The motor is determined to be in a low rpm state when the induced voltage becomes a voltage≧a high rpm detection threshold Th2 after a wait period corresponding to an electrical angle between peaks or valleys of an output voltage has elapsed in a second transient state from a voltage–Th1 to a voltage≧Th2, thereby setting the cycle to a long cycle.

5. 发明申请

US20170066474A1 STEERING CONTROL APPARATUS 有权
标题翻译：转向控制装置
公开(公告)号：US20170066474A1
公开(公告)日：2017-03-09
申请号：US15122712
申请日：2014-05-30
申请人： Mitsubishi Electric Corporation
发明人： Taizo TODA , Masaya ENDO , Yoshihiko KIMPARA , Kenji OGAWA
IPC分类号： B62D6/00 , B62D5/04
CPC分类号： B62D6/00 , B62D5/0463 , B62D5/0466 , B62D6/008
摘要： A steering control apparatus is obtained which includes an assist instruction-value correction device for calculating, based on a result of a friction transition-state determination device, an assist correction value in order to obtain an assist instruction-value after its correction being made by correcting a basic assist instruction-value so that a hysteresis width of steering torque increases at the time of turn-back steering, and an electric current driving device for driving a motor so that an electric current of the motor is coincident with an electric current instruction-value therefor after its correction being made on the basis of the assist instruction-value after its correction being made; and the friction transition-state determination device determines the friction transition-state by integrating a differential value of steering-shaft reaction torque using an integrator having a limiting function to an upper or lower limit value defined in advance.
摘要翻译：获得了一种转向控制装置，其包括辅助指令值校正装置，用于基于摩擦转变状态确定装置的结果计算辅助校正值，以便在其修正之后获得辅助指令值，校正基本辅助指令值，使得在回转转向时转向转矩的滞后宽度增加;以及用于驱动电动机的电流驱动装置，使得电动机的电流与电流指令一致在进行校正之后，根据辅助指令值进行修正之后的值; 并且摩擦过渡状态确定装置通过使用具有限制功能的积分器将转向轴反作用转矩的微分值与预先限定的上限值或下限值进行积分来确定摩擦过渡状态。

6. 发明申请

US20190039641A1 STEERING CONTROL APPARATUS 审中-公开
公开(公告)号：US20190039641A1
公开(公告)日：2019-02-07
申请号：US16065835
申请日：2016-04-26
申请人： Mitsubishi Electric Corporation
发明人： Taizo TODA , Masaya ENDO , Kenji OGAWA
IPC分类号： B62D5/04
摘要： Based on the result of determination by a friction transition state determination unit, an assist command value correction unit corrects a basic assist command value in such a way that the hysteresis width of steering torque at a time of turning steering increases; then, a current driving unit controls a motor current in such a way that the motor current coincides with a current command value obtained by correcting the basic assist command value by use of an assist command correction value.

7. 发明申请

US20160001814A1 STEERING CONTROL DEVICE, AND STEERING CONTROL METHOD 有权
标题翻译：转向控制装置和转向控制方法
公开(公告)号：US20160001814A1
公开(公告)日：2016-01-07
申请号：US14767374
申请日：2013-04-08
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Masaya ENDO , Hidetoshi IKEDA , Isao KEZOBO , Kenji OGAWA , Taizo TODA
IPC分类号： B62D5/04 , B62D6/08
CPC分类号： B62D5/0466 , B62D5/0463 , B62D6/08
摘要： Provided are a steering control device and the like, including the steps of: calculating a steering assist torque to be applied to an actuator for applying the steering assist torque to a steering system of a vehicle in order to improve return characteristics of the steering system; determining a steering state of a driver; correcting the steering assist torque depending on a result of the steering state determination; and controlling the actuator depending on the corrected steering assist torque, in which the step of determining a steering state of a driver includes determining the steering state of the driver based on a combination of at least two of the following: a manually-operating steering state determination; an abrupt steering wheel return determination; a high-acceleration steering wheel return determination; a manual return steering determination; and an additional-steering determination.
摘要翻译：提供了一种转向控制装置等，包括以下步骤：计算施加到用于向车辆的转向系统施加转向辅助转矩的致动器的转向辅助转矩，以改善转向系统的返回特性; 确定驾驶员的转向状态; 根据转向状态确定的结果来校正转向辅助转矩; 以及根据修正的转向辅助转矩来控制致动器，其中确定驾驶员的转向状态的步骤包括基于以下至少两个的组合确定驾驶员的转向状态：手动操作的转向状态决心; 突然的方向盘返回确定; 高加速度方向盘返回确定; 手动回程转向确定; 和额外的转向确定。

8. 发明申请

US20160001811A1 STEERING CONTROL DEVICE, AND STEERING CONTROL METHOD 有权
标题翻译：转向控制装置和转向控制方法
公开(公告)号：US20160001811A1
公开(公告)日：2016-01-07
申请号：US14770176
申请日：2013-04-08
申请人： Mitsubishi Electric Corporation
发明人： Masaya ENDO , Yoshihiko KIMPARA , Hidetoshi IKEDA , Kenji OGAWA , Taizo TODA
IPC分类号： B62D5/04 , B62D6/10 , B62D6/02
CPC分类号： B62D5/0463 , B60W10/20 , B62D5/0466 , B62D5/0472 , B62D6/02 , B62D6/10 , B62D15/025
摘要： Provided are a steering control device and a steering control method therefor, which reduce a steering feeling of discomfort due to a pulsed change (short abrupt change) in steering assist torque caused when control such as steering wheel return control is turned on/off, and which acquire a sufficient control effect even when high control response is required, by reducing a fluctuation in steering assist torque caused when one steering assist torque is selected from two or more steering assist torques by low-pass filtering, and by correcting the low-pass filtering depending on a change amount of the selected steering assist torque.
摘要翻译：本发明提供一种转向控制装置及其转向控制方法，能够减少由方向盘返回控制的开启/关闭等控制引起的转向辅助转矩引起的脉动变化（短暂的急剧变化）引起的不舒服的转向感，即使当需要高的控制响应时也能够获得足够的控制效果，通过减少当通过低通滤波从两个或多个操纵辅助转矩中选择一个转向辅助转矩时产生的转向辅助转矩波动，并且通过校正低通根据所选择的转向辅助转矩的变化量进行过滤。

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