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    • 1. 发明授权
    • Anti-lock brake control system for motor vehicle and brake force control
method thereof
    • 用于机动车辆的防抱死制动控制系统及其制动力控制方法
    • US5964509A
    • 1999-10-12
    • US863366
    • 1997-05-27
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • B60T8/173B60T8/00B60T8/52
    • B60T8/173
    • An anti-lock brake control system for a motor in which influence of vibration of wheel driving shafts occurring upon braking in the state where the wheels (1a, 1b) are operatively connected to a prime mover such as an internal combustion engine is suppressed to thereby enhance the braking performance of the system. Rotation speed (Vw) of each of the driving wheels (1a to 1d) of the motor vehicle is detected for determining wheel acceleration (Gw). A torsion torque (Tt) applied to a wheel drive shaft is detected. The wheel acceleration (Gw) is corrected with the torsion torque (Tt) for determining a corrected acceleration (Gc). The brake application pressure is controlled in dependence on combinations of two variables, i.e., the corrected acceleration (Gc) and the wheel acceleration (Gw). Owing to detection of the torsion torque (Tt), not only the influence of the vibration of the wheel (1a to 1d) due to the torsion torque (Tt) but also a delay involved in the detection of the torsion torque (Tt) can be taken into consideration in the anti-lock brake control.
    • 在车轮(1a,1b)可操作地连接到诸如内燃机的原动机的状态下,在制动时产生的车轮驱动轴的振动的影响的电动机的防抱死制动控制系统被抑制,从而 提高系统的制动性能。 检测机动车辆的各驱动轮(1a〜1d)的转速(Vw),以确定车轮加速度(Gw)。 检测到施加到轮驱动轴的扭矩(Tt)。 用用于确定校正加速度(Gc)的扭矩(Tt)校正车轮加速度(Gw)。 根据两个变量的组合,即校正后的加速度(Gc)和车轮加速度(Gw)来控制制动施加压力。 由于扭转扭矩(Tt)的检测,不仅由于扭矩(Tt)而导致的车轮(1a〜1d)的振动的影响,而且与扭转扭矩(Tt)的检测相关的延迟也可以 在防抱死制动控制中要考虑到。
    • 2. 发明授权
    • Anti-lock brake control system for motor vehicle and brake force control
method therefor
    • 用于机动车辆的防抱死制动控制系统及其制动力控制方法
    • US5913576A
    • 1999-06-22
    • US862989
    • 1997-05-27
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • B60T8/58B60T8/172B60T8/1761B60T8/70B60T8/84B60T8/72
    • B60T8/172B60T8/17616
    • An apparatus for preventing a brake force from increasing in excess upon starting of an anti-lock brake control for enhancing initial brake performance of an anti-lock brake control system. Rotation speed of each of wheels is detected, and wheel acceleration is determined. Further, a corrected acceleration is determined by correcting the wheel acceleration with a torsion torque detected from a driving shaft. In dependence on the statuses of the wheel acceleration and the corrected acceleration, a rate at which the brake force is increased is modified. Enhanced brake performance in the initial control phase can be ensured when the motor vehicle is running on a road exhibiting high friction coefficient while stability of the motor vehicle running on a road of low friction can be realized. Besides, even when difference frictions act on left and right wheels, the motor vehicle is protected against yawing moment.
    • 一种用于防止制动力在启动防抱死制动控制时过度增加的装置,以提高防抱死制动控制系统的初始制动性能。 检测出各车轮的转速,确定车轮加速度。 此外,通过利用从驱动轴检测的扭矩来校正车轮加速度来确定校正加速度。 根据车轮加速度和校正加速度的状态,改变制动力增加的速率。 当机动车辆在表现出高摩擦系数的道路上行驶时,可以确保初始控制阶段中的增强的制动性能,同时可以实现在低摩擦道路上行驶的机动车辆的稳定性。 此外,即使当差动摩擦作用在左右轮上时,机动车也可以防止偏转力矩。
    • 4. 发明授权
    • Antiskid brake controller
    • 防滑制动控制器
    • US6050655A
    • 2000-04-18
    • US969547
    • 1997-11-13
    • Yasuo NaitoChiaki Fujimoto
    • Yasuo NaitoChiaki Fujimoto
    • B60T8/1769B60T8/1761B60T8/66B60T8/84B60T8/70
    • B60T8/17616
    • An antiskid brake controller, which can secure safety by avoiding a cascade caused when a braking pressure is reduced in a four-wheel-drive vehicle, includes wheel speed sensors braking force adjuster for adjusting a braking pressure and an ECU for calculating the control amount of a breaking force adjuster so as to prevent the locking tendency of each of the wheels based on a wheel speed Vw. The ECU includes means for the wheel deceleration calculator Gw corresponding to the locking tendency of each of the wheels, a basic vehicle calculator speed, a slip amount calculator SL based on the wheel speed Vw and the basic vehicle speed, cascade determination device for determining the occurrence of the cascade state when an unstable state occurs such that the slip amounts of three wheels are larger than a predetermined value and control amount corrector for changing the control amount of the braking pressure in an increasing pressure reduction amount when the occurrence of the cascade is determined.
    • 一种防滑制动控制器,其可以通过避免在四轮驱动车辆中制动压力降低时引起的级联来确保安全性,包括用于调节制动压力的车轮速度传感器制动力调节器和用于计算控制量的ECU 破坏力调节器,以便根据车轮速度Vw防止每个车轮的锁定倾向。 ECU包括对应于每个车轮的锁定趋势的车轮减速度计算器Gw,基本车辆计算器速度,基于车轮速度Vw和基本车辆速度的滑移量计算器SL,用于确定 发生不稳定状态时的级联状态的发生,使得三个车轮的滑移量大于预定值;以及控制量校正器,用于当级联发生时,在增加的减压量中改变制动压力的控制量 决心。
    • 6. 发明授权
    • Anti-lock brake control system for motor vehicle
    • 汽车防抱死制动控制系统
    • US5992951A
    • 1999-11-30
    • US759677
    • 1996-12-06
    • Yasuo NaitoChiaki Fujimoto
    • Yasuo NaitoChiaki Fujimoto
    • B60T8/172B60T8/1755B60T8/1761B60T8/66B60T8/72
    • B60T8/17616B60T8/172B60T2250/04
    • An anti-lock brake control system capable of performing optimal control of braking hydraulic pressure in a motor vehicle having four wheels while preventing brake application from being released by setting an optimal pseudo vehicle speed by effectively making use of the wheel speeds of four wheels in arithmetic determination of a pseudo vehicle speed on a wheel basis. The anti-lock brake control system includes wheel speed detector (101a to 101d) for detecting rotation speeds of four wheels, respectively, reference wheel speed arithmetic calculators (102a to 102d) for setting limits on the wheel speed of the wheels in consideration of positional relations of the wheels relative to one wheel of concern to thereby determine a reference wheel speed, and pseudo vehicle speed arithmetic calculators (103a to 103d) for arithmetically determining the pseudo vehicle speed on the basis of the reference wheel speed.
    • 一种防抱死制动控制系统,其能够通过有效地利用四轮的算术运算来设定最佳的模拟车速,同时防止制动应用被释放,从而对具有四个车轮的机动车辆中的制动液压进行最佳控制 以车轮为基础确定伪车速。 防抱死制动控制系统包括分别用于检测四个车轮的转速的车轮速度检测器(101a至101d),用于考虑位置来设定车轮速度的限制的参考轮速度运算计算器(102a至102d) 相对于所关注的一个车轮的关系,从而确定参考车轮速度,以及用于基于参考车轮速度算术确定伪车辆速度的伪车辆速度运算计算器(103a至103d)。
    • 8. 发明申请
    • ELECTRIC POWER STEERING DEVICE
    • 电动转向装置
    • US20090084616A1
    • 2009-04-02
    • US12293140
    • 2007-03-08
    • Isao KezoboNoriyuki InoueChiaki FujimotoTakayuki KifukuMasahiro KimataKazumichi Tsutsumi
    • Isao KezoboNoriyuki InoueChiaki FujimotoTakayuki KifukuMasahiro KimataKazumichi Tsutsumi
    • B62D6/00
    • B62D5/0481B62D5/0463
    • An electric power steering apparatus in which, when an abnormality is generated in an electric power steering apparatus, an assist is reduced smaller than normal when a steering burden is estimated to be small; and the assist can be increased to normal and the steering burden can be sufficiently reduced when the steering burden is estimated to be large. When an abnormality is detected, an assist command is set smaller than at a normal time when there is no abnormality in a first range where the steering burden estimated by the steering burden estimation unit is small; the assist command is increased to that at a normal time in a second range where the steering burden estimated by the steering burden estimation unit is larger than the first range; and an assist torque of a motor is controlled in response to the assist command at the abnormal time.
    • 一种电动助力转向装置,其中,当在电动助力转向装置中产生异常时,当驾驶负担被估计为小时,辅助被减小到比正常小; 并且辅助可以增加到正常,并且当估计转向负载大时可以充分地减小转向负担。 当检测到异常时,当由驾驶负担估计单元估计的转向负荷小的第一范围内没有异常时,将辅助指令设定为小于正常时的辅助指令; 在由转向负担估计单元估计的转向负载大于第一范围的第二范围内,辅助指令增加到正常时的辅助指令; 并且响应于异常时的辅助指令来控制电动机的辅助转矩。
    • 10. 发明申请
    • Electric power steering unit
    • 电动助力转向装置
    • US20050269150A1
    • 2005-12-08
    • US10971144
    • 2004-10-25
    • Chiaki FujimotoKazushi KimuraIsamu Nagai
    • Chiaki FujimotoKazushi KimuraIsamu Nagai
    • B62D6/00B62D5/04B62D107/00B62D119/00H02P7/00H02P29/00
    • B62D5/0496B62D5/046B62D5/0481
    • An electric power steering unit includes: a steering mechanism for steering a wheel under the torque of a steering wheel; a motor for adding a steering assist power to the steering mechanism; a controller for controlling current to be conducted through the motor in accordance with a steering state; a storage element for storing a state of the controller; and initial value setting device for causing the storage device to store a state of the controller when IG (ignition switch) is changed to OFF, and for obtaining a process of overheat state of the controller or the motor to set an initial value of a current limit value to the motor when the IG is changed to ON. As a result, not only a load on a battery when IG is OFF is reduced but also the motor is efficiently driven at the start time.
    • 电动助力转向装置包括:用于在方向盘的转矩下转向车轮的转向机构; 用于向转向机构添加转向辅助动力的电动机; 控制器,用于根据转向状态控制通过马达传导的电流; 用于存储控制器的状态的存储元件; 以及初始值设定装置,用于当IG(点火开关)变为OFF时使存储装置存储控制器的状态,并且为了获得控制器或电动机的过热状态的处理以设定电流的初始值 当IG变为ON时,电机的极限值。 结果,不仅在IG为OFF时电池上的负载减小,而且电动机在开始时被有效地驱动。