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    Traction control system for vehicle
    3.
    发明授权
    Traction control system for vehicle 失效
    车辆牵引力控制系统

    公开(公告)号：US5737713A

    公开(公告)日：1998-04-07

    申请号：US610615

    申请日：1996-03-04

    申请人： Toru Ikeda ,  Fumiaki Honjyo ,  Shuji Shiraishi ,  Osamu Yano

    发明人： Toru Ikeda ,  Fumiaki Honjyo ,  Shuji Shiraishi ,  Osamu Yano

    IPC分类号： B60K28/16 ,  B60T8/175 ,  B60W10/04 ,  B60W10/08 ,  B60W10/10 ,  B60W10/11 ,  F02D29/02 ,  F02D41/04 ,  F02D41/22 ,  F02D45/00

    CPC分类号： B60K28/16 ,  B60W2530/16

    摘要： In a traction control system, an initial engine torque for a traction control is selected from the following engine torques: an engine torque calculated from a throttle opening degree and an engine revolution-number; a required engine torque calculated from a total acceleration and a vehicle speed; and an engine torque corresponding to a road surface of an extremely low friction coefficient, depending upon a slipping state determined by comparing a driven wheel speed with slip reference values. When the driven wheel speed repeatedly exceeds the slip reference value, it is determined that a hunting has been generated, and the engine torque corresponding to the road surface of the extremely low friction coefficient is selected, and the engine torque is largely reduced. Thus, when the friction coefficient of the road surface is low, the driven wheel speed is prevented from hunting.

    摘要翻译： 在牵引力控制系统中，用于牵引力控制的初始发动机转矩从以下发动机转矩中选择：由节气门开度和发动机转数计算的发动机转矩; 从总加速度和车辆速度计算的所需发动机转矩; 以及对应于极低摩擦系数的路面的发动机扭矩，这取决于通过将从动轮速度与滑差参考值进行比较而确定的滑动状态。 当从动轮速度反复超过滑动参考值时，确定已经产生了振动，并且选择了与极低摩擦系数的路面相对应的发动机扭矩，并且发动机转矩大大降低。 因此，当路面的摩擦系数低时，防止从动轮速度的振动。

    System for determining the fully-closed state of subsidiary throttle valve
    4.
    发明授权
    System for determining the fully-closed state of subsidiary throttle valve 失效
    用于确定辅助节流阀完全关闭状态的系统

    公开(公告)号：US5562080A

    公开(公告)日：1996-10-08

    申请号：US301903

    申请日：1994-09-07

    申请人： Takashi Nishihara ,  Toru Ikeda ,  Shuji Shiraishi ,  Osamu Yano

    发明人： Takashi Nishihara ,  Toru Ikeda ,  Shuji Shiraishi ,  Osamu Yano

    IPC分类号： F02D45/00 ,  F02D9/02 ,  F02D11/10 ,  F02D41/02 ,  F02D41/24 ,  F02D7/00

    CPC分类号： F02D11/106 ,  F02D41/2438 ,  F02D41/2448 ,  F02D41/2474 ,  F02D41/28 ,  F02D2200/0404 ,  F02D2250/16 ,  F02D41/2464

    摘要： A method for determining the fully-closed state of a subsidiary throttle valve. If a stable state judging circuit judges that there is no outside influence exerted on the operational state of the engine (a state in which the vehicle is stopped and the engine is in an idling state) even if the subsidiary throttle valve is fully closed, a valve closing circuit closes the subsidiary throttle valve and a fully-closed state determination is carried out. If the opening degree of the subsidiary throttle valve or the engine revolution number is largely varied during the determination process of the fully-closed state determination circuit, a valve-closing inhibiting circuit inhibits the closing of the subsidiary throttle valve to discontinue the determination. Even if all of the conditions for determination are satisfied again, the closing of the subsidiary throttle valve and the restarting of determination by the fully-closed state determination circuit are inhibited until the comparator circuit judges that the vehicle starts traveling and vehicle speed exceeds a reference value.

    摘要翻译： 一种用于确定辅助节流阀的完全关闭状态的方法。 如果稳定状态判断电路判断即使辅助节流阀完全关闭，也不会对发动机的运转状态（车辆停止，发动机处于怠速状态的状态）施加外部影响， 闭阀回路关闭辅助节流阀，并执行完全关闭状态确定。 如果在完全关闭状态判定电路的判定处理中，辅助节流阀的开度或发动机转数大幅度变化，则关闭禁止电路阻止副节流阀的关闭而停止判定。 即使再次满足判定条件，禁止辅助节流阀的关闭和全闭合状态判定电路的重新开始判定，直到比较电路判断车辆开始行驶，车速超过基准 值。

    Traction control device for vehicle
    5.
    发明授权
    Traction control device for vehicle 失效
    车辆牵引力控制装置

    公开(公告)号：US5458212A

    公开(公告)日：1995-10-17

    申请号：US301901

    申请日：1994-09-07

    申请人： Takashi Nishihara ,  Toru Ikeda ,  Shuji Shiraishi ,  Osamu Yamamoto ,  Osamu Yano

    发明人： Takashi Nishihara ,  Toru Ikeda ,  Shuji Shiraishi ,  Osamu Yamamoto ,  Osamu Yano

    IPC分类号： B60K28/16 ,  F02D29/02 ,  F02D41/04 ,  F16H63/40 ,  B60T8/32

    CPC分类号： B60K28/16 ,  F16H63/40

    摘要： In a traction control device in which an initial control torque of an engine is determined in accordance with an acceleration of the vehicle, when an excessive slipping of driven wheels is detected, a time taken for proceeding of the excessive slipping of the driven wheels from a large slip state to a small slip state is counted by a timer. If such time is smaller than a reference time and a gear ratio of the vehicle is of a first gear shift to provide a low vehicle speed, it is decided that the vehicle is traveling on an upward sloping road, and a lower limit value for defining the initial control torque of the engine determined in an initial control torque calculating means is corrected into an increased value in an initial torque correcting means. This prevents the initial control torque of the engine from being excessively reduced at the start of a traction control. By this construction, it is possible to prevent an initial control torque from being excessively reduced due to a misjudgment of a friction coefficient of a surface of an upward or downward sloping road to insure an acceleratability of a vehicle.

    摘要翻译： 在其中根据车辆的加速度确定发动机的初始控制扭矩的牵引力控制装置中，当检测到从动轮的过度滑动时，驱动轮的过度滑动所用的时间 计时器对大滑移状态进行小滑动状态计数。 如果这样的时间小于参考时间，并且车辆的变速比为第一档以提供低车速，则判定车辆在向上倾斜的道路上行驶，并且确定下限值 在初始转矩校正装置中将在初始控制扭矩计算装置中确定的发动机的初始控制扭矩校正为增加的值。 这防止在牵引力控制开始时发动机的初始控制扭矩过度减小。 通过这种结构，可以防止初始控制扭矩由于对向上或向下倾斜的道路的表面的摩擦系数的误判而被过度地减小，以确保车辆的加速性。

    Vehicle motion control system
    6.
    发明授权
    Vehicle motion control system 失效
    车辆运动控制系统

    公开(公告)号：US06697728B2

    公开(公告)日：2004-02-24

    申请号：US10244321

    申请日：2002-09-16

    申请人： Keiyu Kin ,  Hiroyuki Urabe ,  Osamu Yano

    发明人： Keiyu Kin ,  Hiroyuki Urabe ,  Osamu Yano

    IPC分类号： B80T800

    CPC分类号： G05D1/0891 ,  B60G17/00

    摘要： In a vehicle motion control system based on a target yaw rate scheme, a brake force computing unit brakes an outer front wheel in a controlled manner when a sign of the yaw rate has changed and the yaw rate increment has become equal to or greater than a threshold value after a counter steer action has been detected and the vehicle body slip angle has become equal to or greater than a threshold value. Thus, suppose that a vehicle travels a winding road and a counter steer action is taken. If the vehicle body slip angle and actual yaw rate increment exceed threshold values, the outer front wheel is braked. Therefore, even when the vehicle body slip angle reaches a maximum value and an attempt is made to reduce it again by a counter steer action in a similar manner as a swinging pendulum, because the increases in the yaw rate and actual yaw rate increment are predicted and monitored before the vehicle body slip angle reaches its maximum value, the vehicle is enabled to travel in a stable fashion.

    摘要翻译： 在基于目标横摆速度方案的车辆运动控制系统中，制动力计算单元在偏航率的符号已经改变并且横摆率增量变得等于或大于 已经检测到反向转向动作之后的阈值，并且车身滑移角已经变得等于或大于阈值。 因此，假设车辆行驶在蜿蜒的道路上并采取反向转向动作。 如果车体滑移角度和实际横摆角速度增量超过阈值，则制动前轮。 因此，即使当车身滑移角达到最大值，并且通过与摆动摆锤相似的方式通过反向转向动作再次尝试，因为预测横摆率和实际横摆角速度增量的增加 并且在车体滑移角达到其最大值之前进行监控，车辆能够以稳定的方式行驶。

    Driven wheel slip controlling system for vehicle
    7.
    发明授权
    Driven wheel slip controlling system for vehicle 失效
    车辆驱动车轮滑动控制系统

    公开(公告)号：US6023650A

    公开(公告)日：2000-02-08

    申请号：US637154

    申请日：1996-04-24

    申请人： Osamu Yamamoto ,  Shuji Shiraishi ,  Osamu Yano

    发明人： Osamu Yamamoto ,  Shuji Shiraishi ,  Osamu Yano

    IPC分类号： B60W10/04 ,  B60K28/16 ,  B60W10/06 ,  B60W10/10 ,  B60W10/18 ,  B60W10/184 ,  F02D29/02 ,  F02D41/04 ,  F02D45/00 ,  F16H59/68 ,  F16H59/70 ,  F16H61/00 ,  F16H63/40 ,  F16H63/50

    CPC分类号： B60K28/16 ,  B60W2520/125 ,  F16H2059/6807 ,  F16H59/70 ,  F16H63/40

    摘要： A traction control system for a vehicle, which, during normal driving of the vehicle, if a driven wheel speed becomes less than a deceleration-control starting reference value which is set lower than a vehicle speed, a feed-back control of an opening degree of a throttle valve is started so as to converge the driven wheel speed into a target driven wheel speed. If a downshifting is conducted, the feed-back control of the throttle valve opening degree is feed-back controlled by using, in place of the driven wheel speed, a pseudo driven wheel speed calculated based on the number of revolutions of an engine and a gear position. With this arrangement, it is possible to open the throttle valve at an earlier stage to increase a driven wheel torque, and to avoid a deceleration slip at the time of downshifting at a high speed.

    摘要翻译： 一种用于车辆的牵引力控制系统，其在车辆的正常行驶期间，如果从动轮速度小于设定为低于车速的减速控制开始基准值，则开度的反馈控制 启动节流阀，以将从动轮速度收敛到目标从动轮速度。 如果进行降档，则通过使用代替从动轮速度的基于发动机的转速计算的伪从动轮速度来反馈控制节气门开度的反馈控制， 档位。 通过这种布置，可以在较早的阶段打开节流阀以增加从动轮转矩，并且避免高速降档时的减速滑动。

    Wheel diameter difference judging system and wheel speed correcting system
    8.
    发明授权
    Wheel diameter difference judging system and wheel speed correcting system 失效
    车轮直径差分判断系统和车轮速度校正系统

    公开(公告)号：US5771479A

    公开(公告)日：1998-06-23

    申请号：US570208

    申请日：1995-12-11

    申请人： Osamu Yamamoto ,  Shuji Shiraishi ,  Osamu Yano

    发明人： Osamu Yamamoto ,  Shuji Shiraishi ,  Osamu Yano

    IPC分类号： B60W10/04 ,  B60T8/172 ,  B60W10/06 ,  B60W10/10 ,  B60W10/11 ,  F02D29/02 ,  F02D41/04 ,  F02D45/00 ,  G06F17/00

    CPC分类号： B60T8/172 ,  Y10S303/07

    摘要： A wheel diameter judging system and wheel speed correcting system which calculates a driven wheel slip rate, and a driven wheel torque. A variation characteristic of the driven wheel slip rate relative to the variation in driven wheel torque is presumed using the method of least squares. A correction value corresponding to a ratio of the number of revolutions of a follower wheel to the number of revolutions of a driven wheel in a condition in which the driven wheel is not in a slipping state is calculated as an intercept of the driven wheel slip rate at the driving torque equal to zero in a graph of the variation characteristic. The driven wheel speed is corrected by the correction value. The driven wheel speed is corrected by the correction value. Thus, even if the driven wheel is in the slipping state, a difference in diameter between the follower and driven wheels can be accurately judged, and the follower wheel speed or the driven wheel speed can be accurately corrected.

    摘要翻译： 车轮直径判断系统和车轮速度校正系统，其计算从动轮滑移率和从动轮转矩。 使用最小二乘法推测从动轮滑移率相对于从动轮转矩的变化的变化特性。 在从动轮不处于滑动状态的条件下，将从动轮的转速与从动轮的转数的比例对应的修正值作为从动轮的滑动率 在变化特性的曲线图中的驱动转矩等于零。 通过校正值校正从动轮速度。 通过校正值校正从动轮速度。 因此，即使从动轮处于滑动状态，也能够准确地判断从动轮和从动轮之间的直径差，能够精确地校正从动轮速度或从动轮的速度。

    Reference value correcting device in driven wheel slip control system
    9.
    发明授权
    Reference value correcting device in driven wheel slip control system 失效
    驱动轮滑差控制系统中的参考值校正装置

    公开(公告)号：US5749062A

    公开(公告)日：1998-05-05

    申请号：US571799

    申请日：1995-12-13

    申请人： Osamu Yamamoto ,  Shuji Shiraishi ,  Osamu Yano

    发明人： Osamu Yamamoto ,  Shuji Shiraishi ,  Osamu Yano

    IPC分类号： G01P3/56 ,  B60K28/16 ,  B60T8/172 ,  F02D29/02 ,  F02D41/04

    CPC分类号： B60K28/16 ,  B60T8/172

    摘要： A reference value for a traction control is calculated based on a vehicle speed. When a vehicle is in a predetermined turning state, so that a driven wheel speed is equal to or lower than a predetermined value and a lateral acceleration is equal to or larger than a predetermined value, a correction value is searched from a table based on the vehicle speed and a steering angle to correct an error of the reference value generated due to a difference between the locus of the driven wheels and the locus of the follower wheels during turning of the vehicle. The reference value is corrected by subtracting the correction value from the reference value (when the vehicle is a rear wheel drive vehicle) or by adding the correction value to the reference value (when the vehicle is a front wheel drive vehicle. Thus, the reference value for the fraction control such as a reference value for a target slip rate can be accurately in accordance with the turning state of the vehicle.

    摘要翻译： 基于车速来计算牵引力控制的基准值。 当车辆处于预定的转动状态时，使得从动轮速度等于或低于预定值并且横向加速度等于或大于预定值，则从表中搜索校正值 车速和转向角，以校正由于从动轮的轨迹与从动轮的轨迹在车辆转动期间的差异而产生的参考值的误差。 通过从参考值（当车辆是后轮驱动车辆）减去校正值或者通过将校正值加到参考值（当车辆是前轮驱动车辆时）来校正参考值，因此，参考值 可以根据车辆的转弯状态来准确地确定目标滑移率的基准值等分数控制的值。