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1. 发明授权

US07278512B2 Variable gear ratio hydraulic power steering device 有权
标题翻译：可变齿轮比液压动力转向装置
公开(公告)号：US07278512B2
公开(公告)日：2007-10-09
申请号：US11052061
申请日：2005-02-08
申请人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
发明人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
IPC分类号： B62D5/06
CPC分类号： B62D5/008 , B62D1/166 , B62D5/065 , F15B2211/30575
摘要： A variable gear ratio hydraulic power steering device 1 is provided with a variable ratio transmission mechanism 7 having a drive motor 70; a flow volume control valve 41 for controlling the discharge flow volume of an oil pump 10 which circulates operating fluid; and a steering angle sensor 310 for measuring a handle steering angle input to a steering handle 31. A valve controlling controller 50 is constructed to take thereinto a measured ACT angle which is the rotational angle of the drive motor 70 and to calculate a target ACT angle for the drive motor 70 based on the handle steering angle. Further, the valve controlling controller 50 controls the flow volume control valve 41 to make the discharge flow volume equal to or greater than a predetermined flow volume when the magnitude of a difference ACT angle which is the difference between the target ACT angle and the measured ACT angle is equal to or greater than a threshold value.
摘要翻译：可变齿轮比液压动力转向装置1设置有具有驱动马达70的可变比传动机构7; 用于控制使工作流体循环的油泵10的排出流量的流量控制阀41; 以及用于测量输入到转向手柄31的手柄转向角的转向角传感器310。阀控制控制器50被构造成采用作为驱动电动机70的旋转角度的测量的ACT角度并且基于手柄转向角来计算驱动电动机70的目标ACT角度。此外，当作为目标ACT角度与测量的ACT之间的差的差ACT角度的大小时，阀控制控制器50控制流量控制阀41使排出流量等于或大于预定流量角度等于或大于阈值。

2. 发明申请

US20050178607A1 Variable gear ratio hydraulic power steering device 有权
标题翻译：可变齿轮比液压动力转向装置
公开(公告)号：US20050178607A1
公开(公告)日：2005-08-18
申请号：US11052061
申请日：2005-02-08
申请人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
发明人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
IPC分类号： B62D6/00 , B62D1/16 , B62D5/00 , B62D5/065 , B62D5/07 , B62D5/22 , B62D101/00 , B62D113/00 , B62D117/00 , B62D137/00 , B62D5/06
CPC分类号： B62D5/008 , B62D1/166 , B62D5/065 , F15B2211/30575
摘要： A variable gear ratio hydraulic power steering device 1 is provided with a variable ratio transmission mechanism 7 having a drive motor 70; a flow volume control valve 41 for controlling the discharge flow volume of an oil pump 10 which circulates operating fluid; and a steering angle sensor 310 for measuring a handle steering angle input to a steering handle 31. A valve controlling controller 50 is constructed to take thereinto a measured ACT angle which is the rotational angle of the drive motor 70 and to calculate a target ACT angle for the drive motor 70 based on the handle steering angle. Further, the valve controlling controller 50 controls the flow volume control valve 41 to make the discharge flow volume equal to or greater than a predetermined flow volume when the magnitude of a difference ACT angle which is the difference between the target ACT angle and the measured ACT angle is equal to or greater than a threshold value.
摘要翻译：可变齿轮比液压动力转向装置1设置有具有驱动马达70的可变比传动机构7; 用于控制使工作流体循环的油泵10的排出流量的流量控制阀41; 以及用于测量输入到转向手柄31的手柄转向角的转向角传感器310.阀控制控制器50被构造成将测量的ACT角度作为驱动电动机70的旋转角度并计算目标ACT角度用于基于手柄转向角的驱动马达70。此外，当作为目标ACT角度与测量的ACT之间的差的差ACT角度的大小时，阀控制控制器50控制流量控制阀41使排出流量等于或大于预定流量角度等于或大于阈值。

3. 发明授权

US07031813B2 Electric steering control device 有权
标题翻译：电动转向控制装置
公开(公告)号：US07031813B2
公开(公告)日：2006-04-18
申请号：US10712321
申请日：2003-11-14
申请人： Michiyuki Sugiyama , Hirozumi Eki , Kazumasa Kodama , Junji Kawamuro , Takahiro Kojo , Masatoshi Nakatsu
发明人： Michiyuki Sugiyama , Hirozumi Eki , Kazumasa Kodama , Junji Kawamuro , Takahiro Kojo , Masatoshi Nakatsu
IPC分类号： A01B69/00
CPC分类号： B62D5/0496 , B62D5/008
摘要： An electric steering control device is provided which is capable of enabling the driver to perform steering manipulation stably without being substantially affected by the ambient temperature and the heat generation of the control device. The control device comprises a temperature sensor for detecting the temperature of a circuit board mounting a motor drive circuit thereon and a compensation section for compensating an electric current command value based on the board temperature detected by the temperature sensor, so that en electric motor for exerting an assist force on a vehicle steering mechanism is driven by the compensated electric current command value output from a motor drive circuit. Therefore, the steering operation can be done stably without being substantially affected by the ambient temperature and the heat generation of the control device. In particular, since the temperature sensor is arranged not on the motor drive circuit per se but on a circuit board mounting the motor drive circuit thereon, the freedom can be heightened in arranging the temperature sensor. Further, since the temperature sensor for heat control of a spiral cable provided on the electric motor is utilized also for compensation of the electric current command value, the components for the control device can be reduced in number.
摘要翻译：提供一种电动转向控制装置，其能够使驾驶员能够稳定地执行转向操作，而不受基本上受到环境温度和控制装置的发热的影响。控制装置包括温度传感器，用于检测在其上安装电动机驱动电路的电路板的温度，以及补偿部分，用于基于由温度传感器检测到的电路板温度补偿电流指令值，使得用于施加电动机由电机驱动电路输出的补偿电流指令值驱动车辆转向机构上的辅助力。因此，可以在不受环境温度和控制装置的发热的显着影响的情况下稳定地进行转向操作。特别地，由于温度传感器本身不设置在电动机驱动电路上，而是在其上安装电动机驱动电路的电路板上，因此可以在布置温度传感器时提高自由度。此外，由于设置在电动机上的螺旋形电缆的热控温度传感器也用于电流指令值的补偿，所以可以减少控制装置的部件数量。

4. 发明授权

US06718242B1 Vehicular steering device, program, and record medium 有权
标题翻译：车辆转向装置，程序和记录介质
公开(公告)号：US06718242B1
公开(公告)日：2004-04-06
申请号：US10346119
申请日：2003-01-17
申请人： Yutaka Mori , Kazumasa Kodama
发明人： Yutaka Mori , Kazumasa Kodama
IPC分类号： G06F700
CPC分类号： B62D5/008
摘要： A vehicular steering device of the present invention aims at suppressing heat generation. If a voltage is applied to a solenoid, a drive force is generated in a lock arm. If the drive force exceeds an urging force of a torsion coil spring, an electric motor is released and assumes an unlocked state. Accordingly, the drive force that is required for the maintenance of the electric motor in the unlocked state can be smaller than the drive force that is required for switching the electric motor from a locked state to the unlocked state. Thus, after the electric motor has been released in the unlocked state, a voltage is intermittently applied to the solenoid so that the electric motor is held in the unlocked state. In this manner, heat generation from the solenoid is suppressed.
摘要翻译：本发明的车辆转向装置旨在抑制发热。如果对螺线管施加电压，则在锁定臂中产生驱动力。如果驱动力超过扭转螺旋弹簧的推动力，则电动马达被释放并呈现解锁状态。因此，在解锁状态下维持电动机所需的驱动力可以小于将电动机从锁定状态切换到解锁状态所需的驱动力。因此，在电动机已经在解锁状态被释放之后，电压被间歇地施加到螺线管，使得电动机保持在解锁状态。以这种方式，可以抑制来自螺线管的发热。

5. 发明申请

US20050023072A1 Vehicle steering control system 有权
标题翻译：车辆转向控制系统
公开(公告)号：US20050023072A1
公开(公告)日：2005-02-03
申请号：US10626626
申请日：2003-07-25
申请人： Kazumasa Kodama , Junji Kawamuro , Takahiro Kojo , Masatoshi Nakatsu , Masahiro Miyata
发明人： Kazumasa Kodama , Junji Kawamuro , Takahiro Kojo , Masatoshi Nakatsu , Masahiro Miyata
IPC分类号： B62D6/00 , B62D5/00 , B62D5/04 , B62D15/02 , B62D101/00 , B62D113/00 , B62D137/00
CPC分类号： B62D15/021 , B62D5/008
摘要： A drive controlling means includes a final angle position memorizing means for memorizing a final angle position at a time of termination of the vehicle driving operation, an input complete data memorizing means capable of switching the memory content between a first memory condition and a second memory condition. The first memory condition indicates completeness of writing of the final angle position in the final angle position memorizing means. The second memory condition indicates failure in writing the final angle position therein. The input complete data memorizing means is capable of maintaining the memory content even when the vehicle is stationary.
摘要翻译：驱动控制装置包括最终角度位置存储装置，用于在车辆驾驶操作结束时存储最终角度位置;输入完成数据存储装置，其能够在第一存储器条件和第二存储器条件之间切换存储器内容。第一存储条件指示在最终角位置存储装置中写入最终角位置的完整性。第二存储器条件指示在其中书写最终角位置时失败。输入完成数据存储装置即使在车辆静止时也能够保持存储器内容。

6. 发明授权

US06782969B2 Vehicle steering control system 有权
标题翻译：车辆转向控制系统
公开(公告)号：US06782969B2
公开(公告)日：2004-08-31
申请号：US10626591
申请日：2003-07-25
申请人： Kazumasa Kodama , Masahiro Miyata
发明人： Kazumasa Kodama , Masahiro Miyata
IPC分类号： B62D599
CPC分类号： B62D5/008 , B62D5/046
摘要： A vehicle steering control system is provided which is capable of reliably protecting a motor for driving a wheel steering shaft. The offset output characteristic of a current sensor for detecting the electric current applied to the steering shaft drive motor is actually measured prior to the actual use of the steering control system, and offset compensation information is prepared based on the measured value of the offset output characteristic for storage in an EEPROM. Further, an output value of the current sensor and an output value of a reference current measuring system are measured independently of each other with the supply voltage for use in measurement being set to a constant value. Then, current gain compensation information is prepared based on the output values so measured and is stored in the EEPROM. In the later actual use (i.e., after shipment) of the control system, the output of the current sensor is compensated based on the offset compensation information and the current gain compensation information.
摘要翻译：提供一种能够可靠地保护用于驱动车轮转向轴的电动机的车辆转向控制系统。在实际使用转向控制系统之前，实际测量了用于检测施加到转向轴驱动电动机的电流的电流传感器的偏移输出特性，并且基于偏移输出特性的测量值来准备偏移补偿信息用于存储在EEPROM中。此外，电流传感器的输出值和参考电流测量系统的输出值彼此独立地测量，而用于测量的电源电压被设置为恒定值。然后，根据所测量的输出值准备当前的增益补偿信息，并存储在EEPROM中。在控制系统的后续实际使用（即出货后）中，基于偏移补偿信息和当前增益补偿信息来补偿电流传感器的输出。

7. 发明授权

US5103926A Power steering apparatus with electric motor 失效
标题翻译：动力转向装置与电动马达
公开(公告)号：US5103926A
公开(公告)日：1992-04-14
申请号：US598201
申请日：1990-10-16
申请人： Akihiro Ohno , Kazumasa Kodama , Yoshiharu Amano , Yukio Okamura
发明人： Akihiro Ohno , Kazumasa Kodama , Yoshiharu Amano , Yukio Okamura
IPC分类号： B62D5/04 , H02H6/00
CPC分类号： B62D5/0481 , H02H6/005
摘要： A power steering apparatus wherein a heated state of the electric motor is detected without employing any temperature sensor. There are previously stored plural temperature characteristics each representing the relationship between the temperature variation caused per unit time in the electric motor and the load current, which are prepared, for plural motor temperatures or plural differences between the motor temperature and the ambient temperature. A temperature characteristic is selected on the basis of the present predicted motor temperature or the difference between the motor temperature and the ambient temperature. The present load current is detected, and the temperature variation caused per unit time correspondingly to such load current is calculated from the selected temperature characteristic. The unit-time temperature variations thus obtained are integrated with the lapse of time to predict the present motor temperature. Upon rise of the predicted motor temperature beyond a predetermined point, the electric motor is considered to be in a heated state.

8. 发明授权

US4858134A Device for controlling steering force in power steering apparatus 失效
标题翻译：用于控制动力转向装置转向力的装置
公开(公告)号：US4858134A
公开(公告)日：1989-08-15
申请号：US98185
申请日：1987-09-18
申请人： Kunihiko Eto , Shiro Takeuchi , Yutaka Mori , Shigeo Tanooka , Kazumasa Kodama , Tsutomu Matsumoto
发明人： Kunihiko Eto , Shiro Takeuchi , Yutaka Mori , Shigeo Tanooka , Kazumasa Kodama , Tsutomu Matsumoto
IPC分类号： B62D6/02 , B62D6/00 , B62D113/00 , B62D127/00
CPC分类号： B62D6/00
摘要： There is disclosed a device for controlling steering force in a power steering apparatus having an electromagnetic control valve according to road and driving conditions. The device includes a car speed sensor, a steering angle sensor, first arithmetic means, second arithmetic means, correcting means, control current arithmetic means and controlling means. The first arithmetic means computes a driving condition index by using car speed information. The second arithmetic means computes a road condition index by using steering angle signals. The correcting means converts the driving condition index into a correction driving condition index which takes any one of several stepwise-varied values. The control current arithmetic means computes an output control current value applied to electromagnetic control valve by the controlling means. The device further includes means for detecting lateral acceleration utilized for controlling the steering force.
摘要翻译：公开了一种用于在具有根据道路和驾驶条件的电磁控制阀的动力转向装置中控制转向力的装置。该装置包括车速传感器，转向角传感器，第一运算装置，第二算术装置，校正装置，控制电流运算装置和控制装置。第一算术装置通过使用车速信息来计算驾驶条件指数。第二运算装置通过使用转向角信号来计算道路状况指标。校正装置将驾驶条件指数转换为采用几个逐步变化值中的任何一个的校正驱动条件指数。控制电流运算装置计算由控制装置施加到电磁控制阀的输出控制电流值。该装置还包括用于检测用于控制转向力的横向加速度的装置。

9. 发明申请

US20050230180A1 Electric power steering apparatus 失效
标题翻译：电动助力转向装置
公开(公告)号：US20050230180A1
公开(公告)日：2005-10-20
申请号：US11098513
申请日：2005-04-05
申请人： Kazumasa Kodama
发明人： Kazumasa Kodama
IPC分类号： B62D1/20 , B62D5/04 , B62D6/00 , B62D101/00 , B62D119/00
CPC分类号： B62D5/046
摘要： The invention provides an electric power steering apparatus in which a dead zone is not generated even at a low duty ratio while slow starting a switching element. When a duty ratio of a PWM control becomes more than a preset value (NO in S14), a switching cycle is set to a predetermined value (a fixed value) (S20). When the duty ratio becomes equal to or less than the preset value (Yes in S14), the switching cycle is made longer than the predetermined value (S16). It is possible to securely apply a current to a motor and it is possible to prevent a dead zone from being generated, by elongating the switching cycle even in a low duty ratio while slow starting an FET and preventing a noise from being generated.
摘要翻译：本发明提供了一种电动助力转向装置，其中即使在低起动比下也不产生死区，同时缓慢启动开关元件。当PWM控制的占空比变得超过预设值（S14中为“否”）时，将开关周期设定为规定值（固定值）（S 20）。当占空比变得等于或小于预设值（S14中的“是”）时，使开关周期长于预定值（S16）。通过在慢启动FET并防止产生噪声的情况下，即使在低占空比下延长开关周期，也可以将电流可靠地施加到电动机，并且可以防止产生死区。

10. 发明授权

US5208752A Control apparatus for power-assisted steering system 失效
标题翻译：功率辅助转向系统的控制装置
公开(公告)号：US5208752A
公开(公告)日：1993-05-04
申请号：US620003
申请日：1990-11-30
申请人： Kazumasa Kodama , Kunihiko Eto , Hisashi Koba , Yuzo Kubota , Kimio Yamaguchi
发明人： Kazumasa Kodama , Kunihiko Eto , Hisashi Koba , Yuzo Kubota , Kimio Yamaguchi
IPC分类号： B62D6/00 , B62D6/02 , B62D101/00 , B62D113/00
CPC分类号： B62D6/02
摘要： A control apparatus for a power-assisted steering system which includes a servo valve associated with a hydraulic power cylinder to selectively direct the flow of fluid under pressure from a source of hydraulic pressure to opposite fluid chambers of the power cylinder in response to operation of a steering wheel and an electrically operated control valve arranged to control hydraulic pressure for power assist applied to the servo valve in accordance with a control current applied thereto. The control apparatus is arranged to control the value of the control current in such a manner that the hydraulic pressure for power assist is decreased when the steering wheel is returned to its neutral position from its steered position during low speed travel of the vehicle and that the hydraulic pressure for power assist is increased when the steering wheel is returned to its neutral position from its steered position during high speed travel of the vehicle.

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