公开(公告)号：US5662393A

公开(公告)日：1997-09-02

申请号：US544542

申请日：1995-10-18

申请人： Masahiko Kamiya ,  Yuzo Imoto ,  Masayoshi Oishi

发明人： Masahiko Kamiya ,  Yuzo Imoto ,  Masayoshi Oishi

IPC分类号： B60T8/58 ,  B60T8/172 ,  B60T8/173 ,  B60T8/1763 ,  B60T8/42 ,  B60T8/44 ,  B60T17/22

CPC分类号： B60T8/17636 ,  B60T17/22 ,  B60T8/173 ,  B60T8/4266 ,  B60T8/448

摘要： To provide optimal braking force control using braking operation data, an ECU in a brake force control system detects a braking operation according to fluctuation components of wheel rotation. That is, the ECU calculates the wheel acceleration and sets a reference load level for the braking operation according to a road surface coefficient of friction at the wheel tire. When the amplitude of the wheel acceleration increases and exceeds the reference load level, the braking load is determined to be heavy. If the braking load is heavy, the ECU decreases the brake oil pressure of the wheel being detected. In this way, the slip ratio can be controlled around a peak road surface coefficient of friction.

摘要翻译： 为了使用制动操作数据提供最佳制动力控制，制动力控制系统中的ECU根据车轮旋转的波动分量来检测制动操作。 也就是说，ECU计算车轮加速度，并根据车轮轮胎的路面摩擦系数设定制动操作的基准负载水平。 当车轮加速度的振幅增加并超过参考负载水平时，制动负载被确定为很重。 如果制动负载较重，ECU会降低被检测车轮的制动油压。 以这种方式，可以围绕峰值路面摩擦系数控制滑移率。

公开(公告)号：US5878365A

公开(公告)日：1999-03-02

申请号：US657188

申请日：1996-06-03

申请人： Nobuyoshi Onogi ,  Yuzo Imoto ,  Masahiko Kamiya ,  Masuhiro Kondo

发明人： Nobuyoshi Onogi ,  Yuzo Imoto ,  Masahiko Kamiya ,  Masuhiro Kondo

IPC分类号： B60T8/58 ,  B60T8/171 ,  B60T8/172 ,  B60T8/1755 ,  B60T17/00 ,  B60T8/00

CPC分类号： B60T8/172 ,  B60T8/171

摘要： Vibration observed in a tire wheel portion exhibits a resonant vibration phenomenon in which vibration fluctuates between a wheel and a surface of a tire. This phenomenon shows different characteristics depending upon how the surface of the tire is in contact with a road surface. Here, a detector derives a parameter corresponding to a gradient of a coefficient of friction based on these characteristics and detects a brake condition. Also, a controller executes ABS control based on such parameter.

摘要翻译： 在轮胎车轮部分观察到的振动表现出振动在车轮和轮胎表面之间波动的共振振动现象。 这种现象根据轮胎的表面如何与路面接触而显示不同的特性。 这里，检测器基于这些特性导出与摩擦系数的梯度对应的参数，并检测制动条件。 此外，控制器基于这样的参数执行ABS控制。

公开(公告)号：US07561954B2

公开(公告)日：2009-07-14

申请号：US10648805

申请日：2003-08-27

申请人： Hiroaki Aizawa ,  Shinsuke Sakane ,  Masashi Kishimoto ,  Yuzo Imoto

发明人： Hiroaki Aizawa ,  Shinsuke Sakane ,  Masashi Kishimoto ,  Yuzo Imoto

IPC分类号： G06F17/00 ,  B60T7/16

CPC分类号： B60T8/4872 ,  B60K31/00 ,  B60T7/12 ,  B60T2201/04 ,  B60T2230/04 ,  B60W2510/0609 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2540/16 ,  B60W2550/14 ,  B60W2550/148

摘要： A creep drive control device according to the invention sets a target creep vehicle speed when a driver has neither one of an acceleration intention or a stop maintenance intention. An engine output is increased (or decreased) by a vehicle speed increase processing (or a vehicle speed decrease processing), or a braking force is decreased (or increased), and an actual vehicle speed is controlled so as to be equal to the target creep vehicle speed or a value in the proximity thereof. The target creep vehicle speed, and respective engine output and braking force increase amounts and decrease amounts are corrected and set in accordance with driving conditions, road surface conditions and driver operations.

摘要翻译： 根据本发明的蠕变驱动控制装置，在驾驶员既不具有加速意图也不具有停止维修意图的情况下，设定目标爬行车速。 发动机输出通过车速增加处理（或车速降低处理）增加（或减小），或制动力减小（或增加），并且将实际车速控制为等于目标 爬行车速或其附近的值。 根据行驶条件，路面状况和驾驶员的操作来修正和设定目标爬行车辆速度以及相应的发动机输出和制动力增加量和减少量。

公开(公告)号：US20050071061A1

公开(公告)日：2005-03-31

申请号：US10932114

申请日：2004-09-02

申请人： Hiroaki Kato ,  Minekazu Momiyama ,  Takayuki Ohta ,  Yoshiyuki Yasui ,  Yuzo Imoto ,  Hiroaki Aizawa ,  Eiichi Ono ,  Yuji Muragishi

发明人： Hiroaki Kato ,  Minekazu Momiyama ,  Takayuki Ohta ,  Yoshiyuki Yasui ,  Yuzo Imoto ,  Hiroaki Aizawa ,  Eiichi Ono ,  Yuji Muragishi

IPC分类号： B60T8/172 ,  B62D5/00 ,  B62D6/00 ,  B62D101/00 ,  B62D103/00 ,  B62D111/00 ,  B62D113/00 ,  B62D119/00 ,  B62D137/00 ,  B62D5/04

CPC分类号： B62D5/008 ,  B60T8/172 ,  B60T2210/12 ,  B60T2220/03 ,  B62D6/003 ,  B62D6/006

摘要： A first ECU 30 detects a steering torque applied to a steering system, estimates a self-aligning torque generated in a front wheel on the basis of the steering torque, and estimates a side force for the front wheel on the basis of lateral acceleration and a yaw rate. The first ECU 30 estimates a grip factor ε for the front wheel on the basis of a change of the self-aligning torque to the side force. The first ECU 30 judges whether the grip factor is below a second OS (oversteer) start threshold value. A second ECU 40 controls the transfer ratio according to the vehicle state when the grip factor is less than the second OS start threshold value.

公开(公告)号：US06533370B2

公开(公告)日：2003-03-18

申请号：US09983440

申请日：2001-10-24

申请人： Takahisa Yokoyama ,  Masanobu Yamaguchi ,  Takayuki Takeshita ,  Yuzo Imoto

发明人： Takahisa Yokoyama ,  Masanobu Yamaguchi ,  Takayuki Takeshita ,  Yuzo Imoto

IPC分类号： B60T866

CPC分类号： B60T8/17616

摘要： In a vehicle brake apparatus for executing ABS control to prevent a wheel from locking in such a manner that braking force is controlled so as to keep a slip ratio of a wheel at a target slip ratio so that an excessive drop of a wheel speed from a vehicle body speed is adjusted, an output current for driving a braking actuator is set to a current on which oscillating waves are superimposed during ABS control so that the wheel speed changes to show oscillating waves. Even if the wheel speed once drops to an extent that the slip ratio exceeds the target slip ratio, further decrease of the wheel speed is restricted and the wheel speed turns to an increase soon and this cycle is repeated. Accordingly, there occurs no excessive drop of the wheel speed due to the response delay so that sufficient braking force is generated.

公开(公告)号：US6155156A

公开(公告)日：2000-12-05

申请号：US187959

申请日：1998-11-06

申请人： Yoshiyasu Takasaki ,  Mamoru Sawada ,  Yuzo Imoto

发明人： Yoshiyasu Takasaki ,  Mamoru Sawada ,  Yuzo Imoto

IPC分类号： B60T8/48 ,  B60T13/57 ,  B60T13/72 ,  F15B13/16

CPC分类号： B60T8/4854 ,  B60T13/57 ,  B60T13/72

摘要： A brake booster includes a solenoid disposed within a valve body. When the solenoid is energized under the inoperative condition of the brake booster, a piston associated with the solenoid is moved to its operative position to close a vacuum valve while opening an atmosphere valve. This allows the brake booster to be operated as an automatic brake without depressing a brake pedal. The brake booster also comprises output restriction means which may comprise a spring 55 shown in FIG. 1, for example, whereby as the output increases when the brake booster is operated as an automatic brake, the output restriction means operates to cease an increase in the output. With this arrangement, if the solenoid is energized inadvertently independently from the intent of a driver, the occurrence of a quick braking action is avoided, but a gentle braking action is assured, thus improving the safeguard.

摘要翻译： 制动助力器包括设置在阀体内的螺线管。 当螺线管在制动助力器的不工作状态下通电时，与螺线管相关联的活塞被移动到其操作位置，以在打开大气阀时闭合真空阀。 这允许制动助力器作为自动制动而不踩制动踏板。 制动助力器还包括输出限制装置，其可以包括图1所示的弹簧55。 如图1所示，例如，当制动助力器作为自动制动器操作时，当输出增加时，输出限制装置操作以停止输出的增加。 通过这种布置，如果螺线管不经意地从驾驶员的意图被激励，则避免了快速制动动作的发生，但是确保了平缓的制动动作，从而改善了保护措施。

公开(公告)号：US6089140A

公开(公告)日：2000-07-18

申请号：US233582

申请日：1999-01-19

申请人： Isao Kobayashi ,  Mamoru Sawada ,  Yuzo Imoto

发明人： Isao Kobayashi ,  Mamoru Sawada ,  Yuzo Imoto

IPC分类号： B60T13/57 ,  B60T13/573 ,  F15B9/10

CPC分类号： B60T13/57 ,  B60T13/573

摘要： A brake booster which permits an axial relative movement between a power piston and a valve body is disclosed. An arrangement is made which prevents a brake reaction from being transmitted to a brake pedal. As an alternative therefor, pseudo-reaction imparting means transmits a pseudo-reaction to a brake pedal. A rear end of the valve body is covered by a tubular cover and bellows connected thereto, and its internal space is maintained in communication with a constant pressure chamber. The bellows has an effective diameter which is chosen to be of an equal size to the diameters of a vacuum valve seat and an atmosphere valve seat. This allows a pseudo-reaction and a brake pedal stroke to be obtained which depend on the force with which a brake pedal is depressed if a negative pressure within the constant pressure chamber varies, thus imparting a better brake feeling to a driver.

摘要翻译： 公开了一种允许动力活塞和阀体之间的轴向相对运动的制动助力器。 制造防止制动器反作用力传递到制动踏板的装置。 作为替代方案，伪反应赋予装置将伪响应发送到制动踏板。 阀体的后端由与其连接的管状盖和波纹管覆盖，并且其内部空间保持与恒定压力室连通。 波纹管的有效直径被选择为与真空阀座和大气阀座的直径相等的尺寸。 这允许获得如果恒压室内的负压变化而取决于制动踏板被压下的力的伪反应和制动踏板行程，从而赋予驾驶员更好的制动感。

公开(公告)号：US4762300A

公开(公告)日：1988-08-09

申请号：US830132

申请日：1986-02-18

申请人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Yoshiyuki Hattori ,  Yuzo Imoto ,  Toshihiro Takei

发明人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Yoshiyuki Hattori ,  Yuzo Imoto ,  Toshihiro Takei

IPC分类号： B60T8/36 ,  B60T8/42 ,  B60T8/50 ,  F16K31/00 ,  F16K31/02

CPC分类号： B60T8/5075 ,  B60T8/369 ,  B60T8/4275 ,  B60T8/5006 ,  F16K31/007

摘要： A piston in a first cylinder is driven as a piezoelectric element group, which includes a plurality of laminar piezoelectric elements stacked in layers, extends or contracts. A second cylinder is formed so as to connect with a first fluid pressure chamber which is defined in the first cylinder by the piston. A piston-shaped valve member is disposed in the second cylinder. The valve member is urged toward the first fluid pressure chamber by a spring. The first fluid pressure chamber is supplied with a fluid whose pressure is set by means of a selector valve. When the selector valve is closed, the fluid pressure chamber is defined as an independent compartment. In this state, high voltage is applied to the piezoelectric element group to elongate it, thereby driving the piston. Thus, the valve member is actuated by the fluid pressure inside the first fluid pressure chamber, and a fluid passage is opened and closed by the valve member.

摘要翻译： 第一气缸中的活塞被驱动为压电元件组，其包括层叠的多个层压压电元件，延伸或收缩。 第二气缸形成为与由活塞限定在第一气缸中的第一流体压力室连接。 活塞形阀构件设置在第二气缸中。 阀构件通过弹簧被推向第一流体压力室。 第一流体压力室被供给流体，其压力通过选择阀设定。 当选择阀关闭时，流体压力室被定义为独立的隔室。 在这种状态下，高压施加到压电元件组以使其伸长，从而驱动活塞。 因此，阀构件由第一流体压力室内的流体压力致动，并且流体通道被阀构件打开和关闭。

公开(公告)号：US4714296A

公开(公告)日：1987-12-22

申请号：US800113

申请日：1985-11-19

申请人： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori

发明人： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori

IPC分类号： B60K28/16 ,  B60T8/175 ,  B60T8/26 ,  B60T8/48 ,  B60W10/04 ,  B60W10/18 ,  B60W10/184 ,  G05D16/10 ,  B60T13/00 ,  B60T8/44

CPC分类号： B60T8/175 ,  B60T8/48 ,  B60T8/4827 ,  B60T8/4836 ,  B60T2270/203

摘要： A hydraulic control valve may have a first chamber having an input port, to which an input hydraulic pressure is applied and an output port, and a second chamber having a third port to which a hydraulic control pressure is applied. When a hydraulic pressure below a predetermined level is applied to the first port, the same hydraulic pressure is produced at the second port. When a hydraulic pressure above the predetermined level is applied to the first port, the hydraulic pressure is reduced at a fixed ratio, and thereby a hydraulic pressure lower than the hydraulic pressure applied to the first port is produced at the second port. Thus the hydraulic control valve functions as a proportional valve. When a hydraulic control pressure is applied to the third port, the first and second port are disconnected. Thus the hydraulic control valve functions as a cutoff valve.

摘要翻译： 液压控制阀可以具有第一室，其具有施加输入液压的输入端口和输出端口，以及具有施加液压控制压力的第三端口的第二室。 当低于预定水平的液压被施加到第一端口时，在第二端口处产生相同的液压。 当将高于预定水平的液压施加到第一端口时，以固定比例降低液压，从而在第二端口处产生低于施加到第一端口的液压的液压压力。 因此，液压控制阀用作比例阀。 当向第三端口施加液压控制压力时，第一和第二端口断开。 因此，液压控制阀用作截止阀。

公开(公告)号：US4629039A

公开(公告)日：1986-12-16

申请号：US816051

申请日：1986-01-03

申请人： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Taro Tanaka

发明人： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Taro Tanaka

IPC分类号： B60T8/36 ,  B60T8/42 ,  B60T8/48 ,  F16D55/224 ,  F16D65/14 ,  F16D65/18 ,  H01L41/09 ,  B60T8/02 ,  F16D55/08

CPC分类号： F16D55/224 ,  B60T8/369 ,  B60T8/4266 ,  B60T8/4809 ,  F16D65/18 ,  F16D2121/02 ,  F16D2121/28 ,  F16D2123/00 ,  F16D2125/10

摘要： A wheel cylinder is formed in the brake caliper for each wheel of a vehicle and brake fluid is supplied from a master cylinder to this wheel cylinder by way of a fluid passage. A brake piston is provided inside the wheel cylinder and includes a piezoelectric piston device inside. By the application of voltage, this piezoelectric piston device expands and contracts the brake piston. A control valve is provided in the fluid passage to open and close it to selectively partition off the master cylinder. When the control valve has closed the passage, a voltage is applied to the piezoelectric piston device to expand it and control the pressure acting on the brake piston in the wheel cylinder to vary the braking force.

摘要翻译： 在车辆的每个车轮的制动钳中形成有轮缸，并且制动流体通过流体通道从主缸供应到该轮缸。 制动活塞设置在轮缸内部并且内部包括压电活塞装置。 通过施加电压，该压电活塞装置使制动活塞膨胀并收缩。 控制阀设置在流体通道中以打开和关闭，以选择性地分离主缸。 当控制阀关闭通道时，向压电活塞装置施加电压以使其膨胀并且控制作用在轮缸中的制动器活塞上的压力以改变制动力。