公开(公告)号：US5135067A

公开(公告)日：1992-08-04

申请号：US563413

申请日：1990-08-06

申请人： Takashi Kohata ,  Masaru Abe ,  Ikuo Nonaga

发明人： Takashi Kohata ,  Masaru Abe ,  Ikuo Nonaga

IPC分类号： B62D5/04 ,  B62D7/14 ,  B62D15/02

CPC分类号： B62D15/0225 ,  B62D5/0427

摘要： An electric power steering system which additionally includes a radial arm extending from a steering rod, an axial shaft extending in parallel with the axial center line of the steering rod, an axial bore formed in the casing of the system for guiding axial movement of the axial shaft substantially without any play, and a spring member urging the axial shaft against a side wall of the axial bore. Thus, rotation of the steering rod around its axial center line may be prevented with a relatively small force. Therefore, no excessive force needs to be applied to the axial shaft, and the axial shaft would not encounter any substantial resistance to its axial movement. The axial shaft may be provided with a groove extending along one side thereof in parallel with the axial central line of the axial shaft and provided with a bottom surface which slopes along its lengthwise direction, and the casing may support a steering rod displacement sensor having a spring-loaded retractable plunger serving as a measuring end and abutting the sloping bottom surface of the groove. Thus, the steering rod displacement sensor may be provided with a simple structure which makes it suitable to be mounted in a very limited space in the power steering system. If desired, the steering rod displacement sensor may also serve as the spring member for removing play between the axial shaft and its axial bore. This electric power steering system is suitable for use in front and rear wheel steering vehicles.

摘要翻译： 一种电动助力转向系统，其还包括从转向杆延伸的径向臂，与转向杆的轴向中心线平行延伸的轴向轴，该轴向孔形成在系统的壳体中，用于引导轴向的轴向运动 基本上没有任何游隙的轴，以及将轴向轴推动抵靠轴向孔的侧壁的弹簧构件。 因此，可以用较小的力来防止转向杆围绕其轴向中心线的转动。 因此，不需要对轴向轴施加过大的力，并且轴向轴不会对其轴向运动产生任何实质的阻力。 轴向轴可以具有与轴向轴的轴向中心线平行的一侧延伸的槽，并且具有沿其长度方向倾斜的底面，并且壳体可以支撑转向杆位移传感器，该转向杆位移传感器具有 用作测量端的弹簧加载的可伸缩柱塞并且抵靠凹槽的倾斜底表面。 因此，转向杆位移传感器可以设置有使其适于安装在动力转向系统中非常有限的空间中的简单结构。 如果需要，转向杆位移传感器还可以用作用于消除轴向轴与其轴向孔之间的间隙的弹簧构件。 该电动助力转向系统适用于前轮和后轮转向车。

公开(公告)号：US07681961B2

公开(公告)日：2010-03-23

申请号：US11451141

申请日：2006-06-12

申请人： Ikuo Nonaga ,  Hiroshi Koan ,  Akihiko Koike ,  Tsuyoshi Sato ,  Makoto Taniguchi ,  Yutaka Kichima ,  Ichiro Ueno ,  Katsuyuki Takei ,  Takashi Kuboshima

发明人： Ikuo Nonaga ,  Hiroshi Koan ,  Akihiko Koike ,  Tsuyoshi Sato ,  Makoto Taniguchi ,  Yutaka Kichima ,  Ichiro Ueno ,  Katsuyuki Takei ,  Takashi Kuboshima

IPC分类号： B60T8/60

CPC分类号： B60T13/746 ,  B60T8/32

摘要： A brake system for a vehicle includes an electrically operated parking brake drive device which generates an operating force for operating the wheel brakes or dedicated parking brakes in response to energization, and which operates even upon cancellation of the energization while in the operated state. A braking force related amount detector detects a physical quantity related to a braking force exhibited by each of the hydraulic pressure operated wheel brakes. When a detected physical quantity exceeds a reference value in a stopped state of the vehicle, a controller energizes the electrically operated parking brake drive device. Thus, the frequency of operation of the electrically operated parking brake drive device is decreased while eliminating inconvenient operations required to operate the electrically operated parking brake drive device, thereby reducing noise and improving durability.

摘要翻译： 一种用于车辆的制动系统包括电动驻车制动器驱动装置，其响应于通电而产生用于操作车轮制动器或专用驻车制动器的操作力，并且其在操作状态下甚至在消除通电时也起作用。 制动力相关量检测器检测与每个液压操作轮制动器所显示的制动力相关的物理量。 当检测到的物理量超过车辆停止状态下的基准值时，控制器对电动驻车制动器驱动装置通电。 因此，减少了电动驻车制动器驱动装置的操作频率，同时消除了操作电动驻车制动器驱动装置所需的不便操作，从而降低了噪音并提高了耐用性。

公开(公告)号：US20070007817A1

公开(公告)日：2007-01-11

申请号：US11451141

申请日：2006-06-12

申请人： Ikuo Nonaga ,  Hiroshi Koan ,  Akihiko Koike ,  Tsuyoshi Sato ,  Makoto Taniguchi ,  Yutaka Kichima ,  Ichiro Ueno ,  Katsuyuki Takei ,  Takashi Kuboshima

发明人： Ikuo Nonaga ,  Hiroshi Koan ,  Akihiko Koike ,  Tsuyoshi Sato ,  Makoto Taniguchi ,  Yutaka Kichima ,  Ichiro Ueno ,  Katsuyuki Takei ,  Takashi Kuboshima

IPC分类号： B60T8/60

CPC分类号： B60T13/746 ,  B60T8/32

摘要： A brake system for a vehicle includes an electrically operated parking brake drive device which generates an operating force for operating the wheel brakes or dedicated parking brakes in response to energization, and which operates even upon cancellation of the energization while in the operated state. A braking force related amount detector detects a physical quantity related to a braking force exhibited by each of the hydraulic pressure operated wheel brakes. When a detected physical quantity exceeds a reference value in a stopped state of the vehicle, a controller energizes the electrically operated parking brake drive device. Thus, the frequency of operation of the electrically operated parking brake drive device is decreased while eliminating inconvenient operations required to operate the electrically operated parking brake drive device, thereby reducing noise and improving durability.

摘要翻译： 一种用于车辆的制动系统包括电动驻车制动器驱动装置，其响应于通电而产生用于操作车轮制动器或专用驻车制动器的操作力，并且其在操作状态下甚至在消除通电时也起作用。 制动力相关量检测器检测与每个液压操作轮制动器所显示的制动力相关的物理量。 当检测到的物理量超过车辆停止状态下的基准值时，控制器对电动驻车制动器驱动装置通电。 因此，减少了电动驻车制动器驱动装置的操作频率，同时消除了操作电动驻车制动器驱动装置所需的不便操作，从而降低了噪音并提高了耐用性。

公开(公告)号：US5189616A

公开(公告)日：1993-02-23

申请号：US616408

申请日：1990-11-21

申请人： Osamu Tsurumiya ,  Masataka Izawa ,  Masaru Abe ,  Ikuo Nonaga

发明人： Osamu Tsurumiya ,  Masataka Izawa ,  Masaru Abe ,  Ikuo Nonaga

IPC分类号： B62D6/00 ,  B62D7/14 ,  B62D7/15 ,  B62D101/00 ,  B62D113/00

CPC分类号： B62D7/1581 ,  B62D7/159

摘要： A four-wheel steering system for a motor vehicle steers motor vehicle rear wheels based on a steering angle ratio between front and rear wheels based on a vehicle speed, and a front wheel steering angle. The steering angle ratio is of a negative value or a relatively small positive value when the vehicle speed is in a medium speed range or a high speed range and the front wheel steering angle is in a relatively small range. The motor vehicle is controlled to turn well when the front wheel steering angle is in the relative small range while the motor vehicle is running in the medium and high speed ranges.

摘要翻译： 用于机动车辆的四轮转向系统基于车速和前轮转向角度，基于前轮和后轮之间的转向角比来转向机动车辆后轮。 当车速处于中速范围或高速范围并且前轮转向角处于相对小的范围内时，转向角比为负值或相对较小的正值。 当机动车辆在中等速度范围内行驶时，前轮转向角度处于相对较小的范围内，机动车被控制得很好。

公开(公告)号：US5857755A

公开(公告)日：1999-01-12

申请号：US950467

申请日：1997-10-15

申请人： Yasushi Aoki ,  Ikuo Nonaga ,  Yasushi Suganuma

发明人： Yasushi Aoki ,  Ikuo Nonaga ,  Yasushi Suganuma

IPC分类号： B60L7/24 ,  B60T8/00 ,  B60T13/58 ,  B60T8/26

CPC分类号： B60L7/24 ,  B60L15/2009 ,  B60L7/18 ,  B60L7/26 ,  B60T13/585 ,  B60T8/00 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/547 ,  B60L2250/28 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

摘要： In an electric vehicle the driven wheels connected to an electric motor are liquid-pressure braked in a condition in which a differential pressure regulating valve interposed between the driven wheels and a master cylinder has been opened, and the driven wheels are regeneratively braked in a condition in which the differential pressure regulating valve has been closed to inhibit the liquid pressure braking. By temporarily opening the differential pressure regulating valve at the start of depression of the brake pedal, a stroke of the brake pedal depending upon the play of the brake caliper is previously absorbed. Thus, when the differential pressure regulating valve has been opened to switch over the regenerative braking to the liquid pressure braking, the change in stroke of the brake pedal can be reduced by a stroke amount that corresponds to the play of the brake caliper. Therefore, it is possible to prevent the stroke of the brake pedal from being largely changed upon switching-over of from regenerative braking to a liquid pressure braking, thereby improving the braking feeling.

摘要翻译： 在电动车辆中，连接到电动机的从动轮在其中介于从动轮和主缸之间的差压调节阀已经打开的状态下进行液压制动，并且从动轮在状态下被再生制动 其中差压调节阀已经被关闭以阻止液压制动。 通过在开始制动踏板开始时临时打开差压调节阀，预先吸收制动踏板取决于制动钳的游隙的行程。 因此，当差压调节阀已打开以将再生制动切换到液压制动时，制动踏板的行程变化可以减小对应于制动钳的弹奏的行程量。 因此，可以防止在从再生制动切换到液压制动时制动踏板的冲程发生很大变化，从而提高制动感。

公开(公告)号：US4939653A

公开(公告)日：1990-07-03

申请号：US226070

申请日：1988-07-29

申请人： Osamu Tsurumiya ,  Masaru Abe ,  Yoshimichi Kawamoto ,  Takashi Kohata ,  Ikuo Nonaga ,  Masataka Izawa

发明人： Osamu Tsurumiya ,  Masaru Abe ,  Yoshimichi Kawamoto ,  Takashi Kohata ,  Ikuo Nonaga ,  Masataka Izawa

IPC分类号： B62D7/14 ,  B62D7/15

CPC分类号： B62D7/148 ,  B62D7/1581 ,  B62D7/159

摘要： The steering operation of a motor vehicle with steerable front and rear road wheels is controlled by steering the rear road wheels with an actuator such as an electric motor which produces a steering force dependent on a deviation of the actual rear wheel steering angle from a target rear wheel steering angle. The rear road wheels are thus controlled with a characteristic dependent on the coefficient of friction of a road on which the motor vehicle travels and the steering speed at which the motor vehicle is steered. Typically, a steering control method comprises the steps of detecting the steering angle of the front road wheels, determining a target steering angle for the rear wheels based on the steering angle of the front road wheels, detecting the actual steering angle of the rear road wheels, calculating a steering angle deviation of the actual rear wheel steering angle from the target steering angle, determining a rear wheel steering force based on the steering angle deviation, and steering the rear road wheels to the target steering angle with the determined rear wheel steering force.

摘要翻译： 具有可转向的前轮和后轮的机动车辆的转向操作通过用诸如电动机的致动器转向后轮来控制，该电动机产生取决于实际后轮转向角与目标后方的偏差的转向力 车轮转向角。 因此，后轮车轮的控制特性取决于机动车辆行驶的道路的摩擦系数和机动车辆转向的转向速度。 通常，转向控制方法包括以下步骤：检测前轮的转向角，基于前轮的转向角确定后轮的目标转向角，检测后轮的实际转向角 计算出实际后轮转向角与目标转向角的转向角偏差，基于转向角偏差来确定后轮转向力，并且通过所确定的后轮转向力将后轮转向目标转向角 。

公开(公告)号：US5433512A

公开(公告)日：1995-07-18

申请号：US152792

申请日：1993-11-15

申请人： Yasushi Aoki ,  Takeshi Ohba ,  Iwao Nakamura ,  Ikuo Nonaga ,  Yukihisa Ishii

发明人： Yasushi Aoki ,  Takeshi Ohba ,  Iwao Nakamura ,  Ikuo Nonaga ,  Yukihisa Ishii

IPC分类号： B60L7/10 ,  B60L7/24 ,  B60T8/00 ,  B60T8/17 ,  B60T8/26 ,  B60T8/32 ,  B60T8/36 ,  B60T8/94 ,  B60T13/58 ,  B60T13/66 ,  B60T13/68 ,  B60T13/74 ,  B60T8/58

CPC分类号： B60T8/4081 ,  B60L7/10 ,  B60L7/24 ,  B60T13/58 ,  B60T13/662 ,  B60T13/686 ,  B60T8/00 ,  B60T8/267 ,  B60T8/3655 ,  B60T8/94 ,  B60L2260/30 ,  B60T2270/608

摘要： In an electric vehicle capable of regenerative braking of wheels, a differential pressure regulating valve is interposed between a master cylinder for generating a hydraulic braking pressure by operation of a brake operating element and a brake cylinder for a driven wheel. In a first region in which an input hydraulic pressure into the differential pressure regulating valve is equal to or less than a predetermined value, an output hydraulic pressure from the differential pressure regulating valve is maintained at zero, and in a second region in which the input hydraulic pressure exceeds the predetermined value, the output hydraulic pressure is lower than the input hydraulic pressure by the predetermined value. Further, in the first region, a regenerative braking force is determined in proportion to a quantity of operation of the brake operating element, and in the second region, the regenerative braking force is maintained at a constant value irrespective of the quantity of operation of the brake operating element. Thus, the regenerative braking force is preferentially generated at the start of braking, and after the regenerative braking force reaches a limit, a deficiency of braking force can be made up by the hydraulic braking force. Moreover, a sum total of the hydraulic braking force and the regenerative braking force can be proportioned to the quantity of operation of the brake operating element.

摘要翻译： 在能够对车轮进行再生制动的电动车辆中，通过制动操作元件的动作产生液压制动压力的主缸和用于从动轮的制动缸的差压调节阀。 在压差调节阀的输入液压等于或小于预定值的第一区域中，来自差压调节阀的输出液压保持为零，在第二区域中，输入 液压超过预定值时，输出液压低于输入液压预定值。 此外，在第一区域中，与制动器操作元件的操作量成比例地确定再生制动力，并且在第二区域中，再生制动力保持在恒定值，而与 制动器操作元件。 因此，在制动开始时优先产生再生制动力，在再生制动力达到极限以后，可以通过液压制动力来构成制动力不足。 此外，液压制动力和再生制动力的总和可以与制动操作元件的操作量成比例。

公开(公告)号：US5365440A

公开(公告)日：1994-11-15

申请号：US800070

申请日：1991-11-27

申请人： Masaru Abe ,  Yoshimichi Kawamoto ,  Ikuo Nonaga ,  Masataka Izawa

发明人： Masaru Abe ,  Yoshimichi Kawamoto ,  Ikuo Nonaga ,  Masataka Izawa

IPC分类号： B62D6/00 ,  B62D7/14 ,  B62D7/15 ,  B62D101/00 ,  B62D113/00 ,  B62D117/00

CPC分类号： B62D7/159 ,  B62D7/1581

摘要： A four wheel steering system for a motor vehicle with steerable front and rear road wheels, a steering angle sensor for detecting a front wheel steering angle through which the front road wheels are steered, a vehicle speed sensor for detecting a vehicle speed of the motor vehicle, a rear wheel steering mechanism for steering the rear wheels, and a controller for controlling the rear wheel steering mechanism to steer the rear road wheels based on the detected front wheel steering angle and the detected vehicle speed when the front road wheels are steering. The controller controls the rear wheel steering mechanism to steer the rear road wheels in a direction which is opposite to the front road wheels if the detected vehicle speed is relatively low, and also controls the rear wheel steering mechanism to steer the rear road wheels in a direction which is the same as the front road wheels if the detected vehicle speed is relatively high. Furthermore, the controller controls the rear wheel steering mechanism to increase a rear wheel steering angle which through the rear road wheels are steered as the front wheel steering angle increases if a change in the front wheel steering angle is relatively small, and controls the rear wheel steering mechanism to reduce an increase in the rear wheel steering angle if a change in the front wheel steering angle is relatively large.

摘要翻译： 一种用于具有可转向的前轮和后轮的机动车辆的四轮转向系统，用于检测前轮转向的前轮转向角的转向角传感器，用于检测机动车辆的车速的车速传感器 ，用于转向后轮的后轮转向机构，以及控制器，用于根据检测到的前轮转向角和前车轮转向时的检测车速来控制后轮转向机构转向后车轮。 如果检测到的车速相对较低，则控制器控制后轮转向机构以使前后轮与前车轮相反的方向转向，并且还控制后轮转向机构以使后车轮转向 方向与前车轮相同，如果检测到的车速相对较高。 此外，如果前轮转向角的变化相对较小，则控制后轮转向机构增加后轮转向角，该后轮转向角随着前轮转向角度的增加而通过后轮转向，并且控制后轮 转向机构，如果前轮转向角的变化相对较大，则减小后轮转向角的增加。

公开(公告)号：US5234068A

公开(公告)日：1993-08-10

申请号：US777591

申请日：1991-10-16

申请人： Takashi Kohata ,  Masaru Abe ,  Ikuo Nonaga

发明人： Takashi Kohata ,  Masaru Abe ,  Ikuo Nonaga

IPC分类号： B62D5/04 ,  B62D15/02

CPC分类号： B62D15/0225 ,  B62D5/0427

摘要： An electric power steering system which additionally includes a radial arm extending from a steering rod, an axial shaft extending in parallel with the axial center line of the steering rod, an axial bore formed in the casing of the system for guiding axial movement of the axial shaft substantially without any play, and a spring member urging the axial shaft against a side wall of the axial bore. Thus, rotation of the steering rod around its axial center line may be prevented with a relatively small force. Therefore, no excessive force needs to be applied to the axial shaft, and the axial shaft would not encounter any substantial resistance to its axial movement. The axial shaft may be provided with a groove extending along one side thereof in parallel with the axial central line of the axial shaft and provided with a bottom surface which slopes along its lengthwise direction, and the casing may support a steering rod displacement sensor having a spring-loaded retractable plunger serving as a measuring end and abutting the sloping bottom surface of the groove. Thus, the steering rod displacement sensor may be provided with a simple structure which makes it suitable to be mounted in a very limited space in the power steering system. If desired, the steering rod displacement sensor may also serve as the spring member for removing play between the axial shaft and its axial bore. This electric power steering system is suitable for use in front and rear wheel steering vehicles.

摘要翻译： 一种电动助力转向系统，其还包括从转向杆延伸的径向臂，与转向杆的轴向中心线平行延伸的轴向轴，该轴向孔形成在系统的壳体中，用于引导轴向的轴向运动 基本上没有任何游隙的轴，以及将轴向轴推动抵靠轴向孔的侧壁的弹簧构件。 因此，可以用较小的力来防止转向杆围绕其轴向中心线的转动。 因此，不需要对轴向轴施加过大的力，并且轴向轴不会对其轴向运动产生任何实质的阻力。 轴向轴可以具有与轴向轴的轴向中心线平行的一侧延伸的槽，并且具有沿其长度方向倾斜的底面，并且壳体可以支撑转向杆位移传感器，该转向杆位移传感器具有 用作测量端的弹簧加载的可伸缩柱塞并且抵靠凹槽的倾斜底表面。 因此，转向杆位移传感器可以设置有使其适于安装在动力转向系统中非常有限的空间中的简单结构。 如果需要，转向杆位移传感器还可以用作用于消除轴向轴与其轴向孔之间的间隙的弹簧构件。 该电动助力转向系统适用于前轮和后轮转向车。