公开(公告)号：US20160243943A1

公开(公告)日：2016-08-25

申请号：US15145162

申请日：2016-05-03

Applicant: NTN CORPORATION

Inventor： Tomohiro SUGAI

IPC: B60L3/10 ,  B60T8/1763 ,  B60L15/20 ,  B60T8/1761

CPC classification number: B60L3/102 ,  B60L3/108 ,  B60L7/14 ,  B60L7/26 ,  B60L15/20 ,  B60L15/2009 ,  B60L50/51 ,  B60L2220/44 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/465 ,  B60L2250/26 ,  B60L2260/28 ,  B60L2260/42 ,  B60T8/17616 ,  B60T8/17636 ,  B60T2201/09 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7275

Abstract: The antilock brake control device is used in a vehicle including: a motor to drive a wheel; a wheel bearing to transmit a rotation of the motor to the wheel and to rotationally support the wheel; and a friction brake to urge a press member against a brake rotor provided in each wheel, to generate a frictional force to brake the wheel. The antilock brake control device includes slip ratio monitor to monitor a slip ratio of the wheel; and driving torque addition section to add a torque in a driving direction to a torque command value for the motor when the slip ratio monitored by the slip ratio monitor exceeds a target slip ratio. When the torque in the driving direction is added to the torque command value for the motor, the friction brake is not operated.

Abstract translation: 防抱死制动控制装置用于车辆，包括：马达驱动车轮; 车轮轴承，用于将马达的旋转传递到车轮并旋转地支撑车轮; 以及摩擦制动器，用于将按压构件推靠在设置在每个车轮中的制动转子上，以产生摩擦力来制动车轮。 防抱死制动控制装置包括滑移率监视器，用于监视车轮的滑移比; 以及驱动转矩追加部，当由滑移率监视器监视的滑移率超过目标滑移率时，将驱动方向上的转矩加到电动机的转矩指令值。 当将驱动方向上的转矩加到电动机的转矩指令值时，摩擦制动器不被操作。

公开(公告)号：US20190219102A1

公开(公告)日：2019-07-18

申请号：US16330854

申请日：2017-09-05

Applicant: NTN CORPORATION

Inventor： Katsuaki SASAKI ,  Tomohiro SUGAI ,  Takahiro WAKUDA

IPC: F16C33/78

CPC classification number: F16C33/7823 ,  F16C19/06 ,  F16C33/7843 ,  F16C2240/70 ,  F16C2361/65 ,  F16J15/3204 ,  F16J15/324

Abstract: A sealed bearing includes an inner race; and seal members each including a seal lip made of rubber. Each seal lip includes a plurality of protrusions circumferentially spaced apart from each other, and kept in sliding contact with the inner race with fluid lubrication condition generated between the protrusions and the inner race. Each protrusion has a circular arc-shaped cross section along the circumferential direction, and the circular arc-shaped cross section has a radius of 0.4 mm or more and less than 9.0 mm.

公开(公告)号：US20180236875A1

公开(公告)日：2018-08-23

申请号：US15960973

申请日：2018-04-24

Applicant: NTN Corporation

Inventor： Tomohiro SUGAI

IPC: B60L3/10 ,  B60L15/20

Abstract: The present invention includes: a PI/PID controller that generates a torque compensation value KPID through PI control or PID control, from a deviation between an allowable rotation speed and a rotation speed of a wheel; an adder that adds the torque compensation value to a torque command input value received from a higher-order controller, thereby obtaining a torque command output value; and a dead time compensator that has a control target model including a dead time and that applies a dead time compensation in generation of the torque compensation value by the Smith method. An input to the dead time compensator is an output of a P compensation or a PD compensation excluding an I compensation from a PI compensation or a PID compensation.

公开(公告)号：US20180099677A1

公开(公告)日：2018-04-12

申请号：US15566466

申请日：2016-04-05

Applicant: NTN CORPORATION

Inventor： Tomohiro SUGAI

IPC: B60W30/18 ,  B60W10/184

CPC classification number: B60W30/18181 ,  B60C9/18 ,  B60L15/20 ,  B60T8/1755 ,  B60T8/1769 ,  B60T2270/302 ,  B60W10/184 ,  B60W2300/18 ,  B60W2520/105 ,  B60W2520/14 ,  B60W2720/24 ,  B60W2720/30 ,  Y02T10/7275

Abstract: A vehicle orientation control device is provided in a four wheel drive vehicle capable of applying braking and driving force to each of the vehicle wheels. The vehicle orientation control device (24) is provided in a vehicle control device (10) for controlling the four wheel drive vehicle and includes a standard yaw rate calculating unit (25), a yaw rate sensor (22), a target yaw moment calculating unit (26), a braking and driving force commanding unit (15), and a yaw moment control unit (27). The yaw moment control unit (27) includes an allocation ratio varying unit (27a) for continuously changing the front and rear allocation ratio of the yaw moment control torque to be distributed to the front and rear wheels (3) and (2) in dependence on the detected actual yaw rate that is detected by the yaw rate sensor (22).

公开(公告)号：US20170166203A1

公开(公告)日：2017-06-15

申请号：US15445086

申请日：2017-02-28

Applicant: NTN CORPORATION

Inventor： Tomohiro SUGAI

IPC: B60W30/02 ,  B60W10/184 ,  B60W10/08 ,  B60L15/20 ,  B60L7/24 ,  B60K1/02 ,  B60L7/10 ,  B60L7/26 ,  B60K7/00 ,  B60T8/1755

CPC classification number: B60W30/02 ,  B60K1/02 ,  B60K7/0007 ,  B60L7/10 ,  B60L7/24 ,  B60L7/26 ,  B60L15/20 ,  B60T8/17 ,  B60T8/1755 ,  B60T2270/303 ,  B60W10/08 ,  B60W10/184 ,  B60W30/045 ,  B60W2510/207 ,  B60W2520/10 ,  B60W2520/125 ,  B60W2520/14 ,  B60Y2300/02 ,  B60Y2300/045 ,  B60Y2300/60 ,  B60Y2300/89 ,  Y02T10/7275

Abstract: A vehicle electronic stability control system allows a vehicle to have improved movement performance and limit performance without causing a driver to feel uncomfortable, by actuating electronic stability control from a state where a lateral slip is relatively less likely to occur. The system prevents skidding of a vehicle including motors which individually drive a pair of left and right drive wheels. A stability determination module obtains information indicating vehicle behavior from a sensor, and determines whether or not the vehicle is in an unstable or less stable state, on the basis of the information. A braking/driving force control module which, when the stability determination module determines that the vehicle is in the unstable or less stable state, applies a braking force to one of the drive wheels, and simultaneously applies a driving force to the motor for the other drive wheel.