公开(公告)号：US07561954B2

公开(公告)日：2009-07-14

申请号：US10648805

申请日：2003-08-27

Applicant: Hiroaki Aizawa ,  Shinsuke Sakane ,  Masashi Kishimoto ,  Yuzo Imoto

Inventor： Hiroaki Aizawa ,  Shinsuke Sakane ,  Masashi Kishimoto ,  Yuzo Imoto

IPC: G06F17/00 ,  B60T7/16

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

Abstract: 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.

Abstract translation: 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

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

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

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

CPC classification number: B62D5/008 ,  B60T8/172 ,  B60T2210/12 ,  B60T2220/03 ,  B62D6/003 ,  B62D6/006

Abstract: 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

Applicant: Takahisa Yokoyama ,  Masanobu Yamaguchi ,  Takayuki Takeshita ,  Yuzo Imoto

Inventor： Takahisa Yokoyama ,  Masanobu Yamaguchi ,  Takayuki Takeshita ,  Yuzo Imoto

IPC: B60T866

CPC classification number: B60T8/17616

Abstract: 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

Applicant: Yoshiyasu Takasaki ,  Mamoru Sawada ,  Yuzo Imoto

Inventor： Yoshiyasu Takasaki ,  Mamoru Sawada ,  Yuzo Imoto

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

CPC classification number: B60T8/4854 ,  B60T13/57 ,  B60T13/72

Abstract: 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.

Abstract translation: 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

Applicant: Isao Kobayashi ,  Mamoru Sawada ,  Yuzo Imoto

Inventor： Isao Kobayashi ,  Mamoru Sawada ,  Yuzo Imoto

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

CPC classification number: B60T13/57 ,  B60T13/573

Abstract: 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.

Abstract translation: 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

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

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

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

CPC classification number: B60T8/5075 ,  B60T8/369 ,  B60T8/4275 ,  B60T8/5006 ,  F16K31/007

Abstract: 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.

Abstract translation: 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

Applicant: Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori

Inventor： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori

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

CPC classification number: B60T8/175 ,  B60T8/48 ,  B60T8/4827 ,  B60T8/4836 ,  B60T2270/203

Abstract: 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.

Abstract translation: 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

Applicant: Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Taro Tanaka

Inventor： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Taro Tanaka

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

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06925371B2

公开(公告)日：2005-08-02

申请号：US10420832

申请日：2003-04-23

Applicant: Yoshiyuki Yasui ,  Wataru Tanaka ,  Eiichi Ono ,  Yuji Muragishi ,  Katsuhiro Asano ,  Minekazu Momiyama ,  Hiroaki Kato ,  Kenji Asano ,  Yuzo Imoto

Inventor： Yoshiyuki Yasui ,  Wataru Tanaka ,  Eiichi Ono ,  Yuji Muragishi ,  Katsuhiro Asano ,  Minekazu Momiyama ,  Hiroaki Kato ,  Kenji Asano ,  Yuzo Imoto

IPC: B62D6/00 ,  B60R16/02 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/58 ,  B60W10/00 ,  B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/18 ,  B60W10/188 ,  B60W10/20 ,  B60W30/00 ,  B60W30/02 ,  B60W40/06 ,  B60W40/10 ,  B62D5/00 ,  B62D5/04 ,  B62D6/04 ,  B62D101/00 ,  B62D111/00 ,  B62D113/00 ,  B62D119/00 ,  B62D137/00 ,  F02D29/02

CPC classification number: B60W10/184 ,  B60T8/17551 ,  B60T2210/12 ,  B60T2260/02 ,  B60W10/20 ,  B60W40/101 ,  B60W2530/20 ,  B60W2550/148 ,  B62D5/008 ,  B62D6/003 ,  B62D6/04

Abstract: The present invention is directed to a vehicle motion control apparatus, which includes a steering factor detection unit for detecting at least one of steering factors including a steering torque and steering effort applied to a steering system, an aligning torque estimation unit for estimating an aligning torque produced on at least a wheel of the vehicle on the basis of the steering factor, a vehicle state variable detection unit for detecting a state variable of the vehicle, a wheel factor estimation unit for estimating at least one of wheel factors including a side force and slip angle applied to the wheel on the basis of the vehicle state variable, and a grip factor estimation unit for estimating a grip factor of at least a tire of the wheel, in accordance with the estimated alignment torque and the estimated wheel factor. The apparatus further includes a first control unit for performing a closed loop control on the basis of the grip factor, and a second control unit for performing a closed loop control on the basis of a deviation between a detected actual vehicle behavior and a desired vehicle behavior set on the basis of the vehicle state variable.

Abstract translation: 本发明涉及一种车辆运动控制装置，其包括：转向因子检测单元，用于检测包括转向转矩和转向系统的转向力的转向因素中的至少一个;对准转矩估计单元，用于估计对准转矩 基于转向系数在车辆的至少一个车轮上产生的车辆状态变量检测单元，用于检测车辆的状态变量的车辆状态变量检测单元，用于估计包括侧力和 基于车辆状态变量施加到车轮的滑移角，以及用于根据估计的对准扭矩和估计的车轮因数估计车轮的至少轮胎的抓地系数的抓地系数估计单元。 该装置还包括：第一控制单元，用于基于夹紧系数执行闭环控制;以及第二控制单元，用于基于检测到的实际车辆行为和期望的车辆行为之间的偏差执行闭环控制 根据车辆状态变量设定。

公开(公告)号：US06895317B2

公开(公告)日：2005-05-17

申请号：US10420826

申请日：2003-04-23

Applicant: Yoshiyuki Yasui ,  Wataru Tanaka ,  Eiichi Ono ,  Yuji Muragishi ,  Katsuhiro Asano ,  Minekazu Momiyama ,  Syoji Ogawa ,  Kenji Asano ,  Yuzo Imoto ,  Hiroaki Kato

Inventor： Yoshiyuki Yasui ,  Wataru Tanaka ,  Eiichi Ono ,  Yuji Muragishi ,  Katsuhiro Asano ,  Minekazu Momiyama ,  Syoji Ogawa ,  Kenji Asano ,  Yuzo Imoto ,  Hiroaki Kato

IPC: B60G17/0195 ,  B60T8/172 ,  B60W30/02 ,  B60W40/06 ,  B60T8/58 ,  B60C19/00

CPC classification number: B60W30/02 ,  B60G17/0195 ,  B60G2400/0523 ,  B60G2400/106 ,  B60G2400/822 ,  B60G2800/24 ,  B60G2800/702 ,  B60G2800/95 ,  B60T8/172 ,  B60T2210/12 ,  B60W40/064 ,  B60W40/101 ,  B60W2050/0028 ,  B60W2510/20 ,  B60W2510/22 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2530/20 ,  B60W2550/148 ,  B60W2900/00

Abstract: The present invention is directed to a wheel grip factor estimation apparatus, which includes a steering factor detection unit for detecting at least one of steering factors including a steering torque and steering effort applied to a steering system extending from a steering wheel to a suspension of a vehicle, an aligning torque estimation unit for estimating an aligning torque produced on at least a wheel of the vehicle on the basis of the steering factor detected by the steering factor detection unit, and a vehicle state variable detection unit for detecting a state variable of the vehicle. The apparatus further includes a wheel factor estimation unit for estimating at least one of wheel factors including a side force and slip angle applied to the wheel on the basis of the vehicle state variable, and a grip factor estimation unit for estimating a grip factor of at least a tire of the wheel, in accordance with a relationship between the estimated alignment torque and the estimated wheel factor.

Abstract translation: 本发明涉及一种车轮牵引因子估计装置，其包括转向因子检测单元，用于检测转向因素中的至少一个，所述转向因素包括转向转矩和施加到从方向盘延伸到转向系统 车辆，用于基于由转向因子检测单元检测到的转向因子来估计在车辆的至少车轮上产生的对准转矩的对准转矩估计单元，以及用于检测车辆状态变量检测单元 车辆。 该装置还包括车轮因素估计单元，用于基于车辆状态变量估计包括施加到车轮的侧力和滑移角的车轮因数中的至少一个，以及用于估计车辆状态变量的抓地系数的抓地系数估计单元 根据估计的对准转矩和估计的车轮因子之间的关系，至少轮胎轮胎。