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21. 发明授权

US06671606B2 Antiskid brake control system 有权
公开(公告)号：US06671606B2
公开(公告)日：2003-12-30
申请号：US10122319
申请日：2002-04-16
申请人： Atsushi Ishikawa , Gen Inoue , Nobuyuki Ohtsu
发明人： Atsushi Ishikawa , Gen Inoue , Nobuyuki Ohtsu
IPC分类号： G06F700
CPC分类号： B60T8/17616
摘要： In an antiskid brake control system, an ECU estimates a wheel slip in accordance with a sensed wheel speed and controls a fluid pressure control valve for braking operation in accordance with the estimated wheel slip for an antiskid brake control, the fluid pressure being reduced when the wheel slip is enlarged and being increased when the wheel slip is lowered. When a vehicle-body speed is smaller than a predetermined quick pressure reduction prohibiting speed, the ECU performs a quick pressure reduction prohibiting control to restrain a quick pressure reduction having a greater reduction amount than a predetermined reduction amount.

22. 发明授权

US06640180B2 Antiskid brake control system 失效
公开(公告)号：US06640180B2
公开(公告)日：2003-10-28
申请号：US10127559
申请日：2002-04-23
申请人： Atsushi Ishikawa , Gen Inoue , Nobuyuki Ohtsu
发明人： Atsushi Ishikawa , Gen Inoue , Nobuyuki Ohtsu
IPC分类号： G06F700
CPC分类号： B60T8/17616
摘要： In an antiskid brake control system, an ECU is constructed to calculate a pseudo vehicle-body speed in accordance with a sensed wheel speed, calculate a target wheel speed in view of a predetermined slip ratio obtained in accordance with a calculated pseudo vehicle-body speed, carry out pressure reducing control by reducing the fluid pressure within a hydraulic unit when the sensed wheel speed is smaller than the calculated target wheel speed, estimate an amount of fluid stored in a reservoir, and correct the target wheel speed to lessen the slip ratio when the estimated fluid amount is greater than a predetermined value.

23. 发明授权

US06600987B2 Apparatus and method for determining a road-wheel vibration of automotive vehicle, and apparatus and method for anti-skid control using the same 失效
标题翻译：用于确定机动车辆的车轮振动的装置和方法，以及使用其的防滑控制的装置和方法
公开(公告)号：US06600987B2
公开(公告)日：2003-07-29
申请号：US09885109
申请日：2001-06-21
申请人： Nobuyuki Ohtsu
发明人： Nobuyuki Ohtsu
IPC分类号： G06F770
CPC分类号： B60T8/173 , B60T2210/14
摘要： An apparatus for determining a road-wheel vibration for an automotive vehicle comprises wheel-speed sensors for detecting wheel speeds of each of road wheels, and a control unit which is configured to be electrically connected to the wheel-speed sensors for processing a wheel-speed data signal detected from each of the wheel-speed sensors. The control unit comprises a wheel acceleration calculating section for calculating a wheel acceleration and a wheel deceleration of each of the road wheels based on the wheel-speed data signal, a wheel acceleration cycle calculating section for calculating a wheel acceleration cycle of each of the road wheels, a vehicle deceleration calculating section for calculating a vehicle deceleration, a vibration detecting section for detecting a road-wheel vibration of the road wheel based on at least the wheel acceleration cycle, and a vibration determining section for determining whether the road-wheel vibration is caused by a bad road surface condition, or the road-wheel vibration is caused by a drive-train vibration of the automotive vehicle, based on the vehicle deceleration.
摘要翻译：用于确定机动车辆的车轮振动的装置包括用于检测每个车轮的车轮速度的车轮速度传感器，以及被配置为电连接到车轮速度传感器的控制单元，从每个车轮速度传感器检测到的速度数据信号。控制单元包括：车轮加速度计算部，其基于车轮速度数据信号计算各个车轮的车轮加速度和车轮减速度;车轮加速循环计算部，其计算各道路的车轮加速循环车轮，用于计算车辆减速度的车辆减速度计算部分，至少基于车轮加速循环来检测车轮的车轮振动的振动检测部分，以及用于确定车轮振动是由路面状况不良引起的，或由车辆的行驶时的车辆振动引起的车轮振动。

24. 发明授权

US06385524B2 Automotive brake control system with anti-skid braking device 失效
标题翻译：汽车制动控制系统具有防滑制动装置
公开(公告)号：US06385524B2
公开(公告)日：2002-05-07
申请号：US09802859
申请日：2001-03-12
申请人： Sunao Hano , Tamotsu Yamaura , Gen Inoue , Nobuyuki Ohtsu
发明人： Sunao Hano , Tamotsu Yamaura , Gen Inoue , Nobuyuki Ohtsu
IPC分类号： B60T858
CPC分类号： B60T8/172 , B60T2210/124
摘要： An automotive brake control system with an anti-brake skid (ABS) unit which controls a wheel-brake cylinder pressure to each individual wheel cylinder of the road wheels to prevent a wheel lock-up condition during braking, and an ABS control unit being configured to be connected electrically to at least wheel speed sensors and the ABS unit to execute skid control having at least a reduce-pressure operating mode and a pressure build-up operating mode, when the wheel speed sensor signals indicate that at least one of the road wheels is locking up. The ABS control unit includes a road-surface-condition change determination section which determines, based on both a time length of brake-fluid-pressure control continuously executed during the skid control and a recovery acceleration of the wheel speed of the road wheel subjected to the skid control, whether there is a road-surface &mgr; change from low-&mgr; road to high-&mgr; road.
摘要翻译：一种具有防制动滑行（ABS）单元的汽车制动控制系统，其对车轮的各个轮缸控制车轮制动缸的压力，以防止制动期间的车轮锁定状态，并且配置ABS控制单元当车轮速度传感器信号指示至少一条道路时，至少与车轮速度传感器和ABS单元电连接以执行至少具有减压操作模式和压力建立操作模式的滑动控制车轮正在锁定。 ABS控制单元包括路面状态变化确定部，其基于在滑动控制期间连续执行的制动液压控制的时间长度和对经受的控制的车轮的车轮速度的恢复加速防滑控制，是否有从低亩路到高亩路的路面亩。

25. 发明授权

US6142587A Anti-lock braking system 失效
标题翻译：防抱死制动系统
公开(公告)号：US6142587A
公开(公告)日：2000-11-07
申请号：US150048
申请日：1998-09-09
申请人： Nobuyuki Ohtsu , Jun Kubo
发明人： Nobuyuki Ohtsu , Jun Kubo
IPC分类号： B60T8/1755 , B60T8/172 , B60T8/1761 , B60T8/1764 , B60T8/58 , B60T8/66
CPC分类号： B60T8/172 , B60T8/1764
摘要： Anti-lock braking system for an automobile is disclosed. It includes a brake unit that can control brake pressures within wheel cylinders of each road wheels of the automobile separately. In an anti-lock control mode, a control unit is operative to determine a controlled wheel speed for a road wheel to be controlled. The control unit determines a slip of the road wheel based on the determined controlled wheel speed and activates the brake unit in a direction to decrease the determined slip. In determining the controlled wheel speed, the control unit is operative to select a higher one of actual wheel speeds of front and rear road wheels on the opposite side to the side where the road wheel to be controlled exists. Then, the control unit is operative to use, as the controlled wheel speed, a lower one of an actual wheel speed of the road wheel to be controlled and the selected higher one wheel speed.
摘要翻译：公开了用于汽车的防抱死制动系统。它包括一个制动单元，可分别控制汽车每个车轮的轮缸内的制动压力。在防抱死控制模式中，控制单元用于确定要控制的车轮的受控车轮速度。控制单元基于确定的受控车轮速度来确定车轮的滑动，并且沿着减小所确定的滑差的方向启动制动单元。在确定受控车轮速度时，控制单元可操作以在待控制的车轮存在的一侧的相对侧上选择前后车轮的实际车轮速度中较高的一个。然后，控制单元可操作地将作为受控车轮速度的车轮的实际车轮速度与所选择的较高的一个车轮速度一起使用。

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