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公开(公告)号：US5190361A
公开(公告)日：1993-03-02
申请号：US814601
申请日：1991-12-30
申请人： Toru Onaka , Toshiaki Tsuyama , Kazutoshi Nobumoto
发明人： Toru Onaka , Toshiaki Tsuyama , Kazutoshi Nobumoto
IPC分类号： B60T8/172 , B60T8/1763 , B60T8/66
CPC分类号： B60T8/17636
摘要： A shift is implemented from the control for elevating the braking force to the control for retaining the braking force when deceleration of the wheel exceeds a first predetermined threshold value when the wheels are braked. The first predetermined threshold value is so set as to become smaller as an assumed road surface friction coefficient .mu. is smaller. The first threshold value is further altered to a larger value by altering the assumed road surface friction coefficient .mu. to a higher one when the period of time required from the start of the control for elevating the braking force to the start of the following control for retaining the braking force is equal to or shorter than a predetermined period of time.
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公开(公告)号：US5365443A
公开(公告)日：1994-11-15
申请号：US711876
申请日：1991-06-07
摘要： A traction control device operates to determine the speed of each of the left and right drive wheels of a vehicle, determine the speed of each of the left and right passive wheels of the vehicle, calculate the actual slip rate of the drive wheels of the vehicle directly based on the measurements of the speeds for the drive and passive wheels, establish a target slip rate and control the driving condition of the vehicle by making the actual slip rate equal the target slip rate. The actual slip rate is matched to the target slip rate by controlling engine output and braking power. The step of controlling the driving condition of the vehicle by controlling the engine output and the braking power is carried out according to the time differential of the difference between the actual slip rate and the target slip rate at least until the actual slip rate matches the target slip rate for the first time. After the actual slip rate has matched the target slip rate at least once, the step of controlling is carried out according to the proportion of the difference between the actual and the target slip rates.
摘要翻译： 牵引控制装置用于确定车辆的左右驱动轮中的每一个的速度，确定车辆的左右两侧的每一个的速度，计算车辆的驱动轮的实际滑移率 直接基于对驱动和被动轮的速度的测量，通过使实际滑移率等于目标滑移率来建立目标滑移率并控制车辆的驾驶状况。 通过控制发动机输出和制动功率，实际滑差率与目标滑差率相匹配。 通过控制发动机输出和制动功率来控制车辆的行驶状态的步骤根据实际滑移率和目标滑移率之间的差异的时间差进行至少直到实际滑移率与目标 滑差率是第一次。 在实际滑移率与目标滑移率匹配至少一次之后，根据实际和目标滑移率之间的差异的比例来执行控制步骤。
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公开(公告)号：US5325300A
公开(公告)日：1994-06-28
申请号：US124833
申请日：1993-09-09
IPC分类号： B60T8/172 , B60T8/175 , B60T8/1763 , F02D29/02 , B60T8/32
CPC分类号： B60T8/175 , B60T2270/208
摘要： A traction control system for a motor vehicle having driving wheels and driven wheels includes a device for detecting the speed of each of the driving wheels of the vehicle, a device for detecting the speed of each of the driven wheels of the vehicle, a device for calculating a slip value of the driving wheels based on the detected speeds of the driving and driven wheels, a traction control device for controlling the driving wheel so that the slip value of each driving wheel is equal to a predetermined desired slip value when the slip value of each driving wheel is greater than the predetermined desired slip value, and a device for estimating a friction coefficient of a road surface which is employed when the predetermined desired slip value is determined. The estimating device updates the friction coefficient of the road surface previously estimated with the friction coefficient of the road surface newly estimated when the slip value of the driving wheel is located in a predetermined region.
摘要翻译： 用于具有驱动轮和从动轮的机动车辆的牵引力控制系统包括用于检测车辆的每个驱动轮的速度的装置，用于检测车辆的每个从动轮的速度的装置， 基于检测到的驱动轮和从动轮的速度来计算驱动轮的滑移值;牵引控制装置，用于控制驱动轮，使得当滑动值为每个驱动轮的滑移值等于预定的期望滑移值时 每个驱动轮的大小大于所述预定的滑动值，以及用于估计在确定了所述预定滑动值时采用的路面的摩擦系数的装置。 当驱动轮的滑移值位于预定区域时，估计装置更新由新估计的路面的摩擦系数先前估计的路面的摩擦系数。
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公开(公告)号：US5292187A
公开(公告)日：1994-03-08
申请号：US991326
申请日：1992-12-16
申请人： Toru Onaka , Toshiaki Tsuyama
发明人： Toru Onaka , Toshiaki Tsuyama
IPC分类号： B60T8/1755 , B60T8/172 , B60T8/1761 , B60T8/1763 , B60T8/66 , B60T8/32
CPC分类号： B60T8/17636
摘要： A slip control system is so adapted as to start the control of the braking force from a state in which the braking force is reduced when a magnitude of deceleration of the wheel becomes equal to or larger than a predetermined value or when a slip value of the wheel becomes a value in the direction in which the wheel is likely to be locked and as to start the control of the braking force from a state in which the braking force is sustained when the deviation obtained by subtracting the wheel speed from the vehicle speed becomes equal to or larger than a predetermined value. This arrangement satisfies requirements for both preventing the wheel from being locked and shortening the braking distance.
摘要翻译： 滑动控制系统适于当车轮的减速度等于或大于预定值时，从制动力减小的状态开始制动力的控制，或者当滑动值 车轮成为车轮可能被锁定的方向上的值，并且当通过从车速减去车轮速度而获得的偏差变得变得为从制动力持续时的状态开始制动力的控制 等于或大于预定值。 这种布置满足了防止车轮被锁定并缩短制动距离的要求。
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公开(公告)号：US5148884A
公开(公告)日：1992-09-22
申请号：US678490
申请日：1991-04-01
IPC分类号： B60W10/04 , B60T8/175 , B60T8/48 , B60W10/06 , B60W10/10 , B60W10/18 , B60W10/188 , F02D29/02
摘要： A slip of the driven wheels is converged by causing the torque generated by the engine to be reduced and applying braking force when a slip of the driven wheel becomes large during accelerating. Control of the application of the braking force to the left-hand and right-hand driven wheels is made individually and separately from each other. When such an incident occurs as causing no normal control of decreasing the torque generated by the engine to be made, the contents of control of application of the braking force is changed so as to apply the same degrees of the braking force to both of the left-hand and right-hand driven wheels.
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公开(公告)号：US5082081A
公开(公告)日：1992-01-21
申请号：US679131
申请日：1991-03-28
申请人： Toshiaki Tsuyama , Toru Onaka
发明人： Toshiaki Tsuyama , Toru Onaka
IPC分类号： B60W10/04 , B60T8/172 , B60T8/175 , B60W10/06 , B60W10/18 , B60W10/188 , B60W50/00 , F02D29/02 , F02D41/22
CPC分类号： B60T8/175 , B60W2050/0057 , F02D41/1404
摘要： A driving torque adjusting system for adjusting a driving torque acting upon driven wheels, for example, a throttle valve for adjusting an output power or torque from the engine, is subjected to feed-back control at a set response velocity so as for an actual slip value of the driven wheel to reach a given target value. When the actual slip value of the driven wheel is equal to or larger than a set value larger than the target value, only the set response velocity in the direction of reducing the driving torque acting upon the driven wheels is corrected to become larger when the actual slip value is smaller than the set value. Preferably, the set response velocity is set smaller as a friction coefficient on a road surface is smaller in both cases where the torque acting upon the driven wheels is increased and decreased. An amount to correct the set response velocity, i.e., a magnitude of the set response velocity in the direction of reducing the driving torque, when the actual slip value of the driven wheel is equal to or larger than the set value becomes larger as the friction coefficient on the road surface is smaller.
摘要翻译： 用于调节作用在从动轮上的驱动转矩的驱动转矩调节系统，例如用于调节来自发动机的输出功率或扭矩的节流阀，以设定的响应速度进行反馈控制，以便实际滑差 驱动轮的值达到给定的目标值。 当从动轮的实际滑移值等于或大于大于目标值的设定值时，仅当作用于从动轮的驱动转矩的减小方向上的设定响应速度被校正为变大 滑差值小于设定值。 优选地，在作用在从动轮上的转矩增加和减小的两种情况下，设定的响应速度被设定得较小，因为在路面上的摩擦系数较小。 当驱动轮的实际滑移值等于或大于设定值时，校正设定响应速度的量，即减小驱动转矩方向的设定响应速度的大小随着摩擦力的增加而变大 路面系数较小。
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公开(公告)号：US5070461A
公开(公告)日：1991-12-03
申请号：US491864
申请日：1990-03-12
IPC分类号： B60W10/04 , B60K28/16 , B60T8/172 , B60T8/175 , B60T8/48 , B60W10/00 , B60W10/06 , B60W10/10 , B60W10/18 , B60W10/188 , F02D29/02 , F16H59/18 , F16H59/24 , F16H59/44 , F16H59/48 , F16H59/66 , F16H61/02 , F16H63/48 , F16H63/50
摘要： A slip control system for a vehicle contains a first control unit for implementing feedback control of torque applied to the driven wheels so as to allow an actual slip value of the driven wheel to reach a predetermined target value. There are set a first judgment value larger than the target value and a second judgment value smaller than the first judgment value. A second control unit is provided for temporarily reducing the torque applied to the driven wheel by a predetermined decrement, in place of the feedback control, when the actual slip value reaches the first judgment value or larger than the first judgment value. There is further provided a third control unit for gradually reducing the torque applied to the driven wheel, in place of the feedback control, when the actual slip value of the driven wheel does not reach the second judgment value or a value smaller than the second judgment value even if a predetermined period of time elapses after start of control by the second control unit.
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公开(公告)号：US5469359A
公开(公告)日：1995-11-21
申请号：US301417
申请日：1994-09-08
摘要： A traction control device operates to determine the speed of each of the left and right drive wheels of a vehicle, determine the speed of each of the left and right passive wheels of the vehicle, calculate the actual slip rate of the drive wheels of the vehicle directly based on the measurements of the speeds for the drive and passive wheels, establish a target slip rate and control the driving condition of the vehicle by making the actual slip rate equal the target slip rate. The actual slip rate is matched to the target slip rate by controlling engine output and braking power. The step of controlling the driving condition of the vehicle by controlling the engine output and the braking power is carried out according to the time differential of the difference between the actual slip rate and the target slip rate at least until the actual slip rate matches the target slip rate for the first time. After the actual slip rate has matched the target slip rate at least once, the step of controlling is carried out according to the proportion of the difference between the actual and the target slip rates.
摘要翻译： 牵引控制装置用于确定车辆的左右驱动轮中的每一个的速度，确定车辆的左右两侧的每一个的速度，计算车辆的驱动轮的实际滑移率 直接基于对驱动和被动轮的速度的测量，通过使实际滑移率等于目标滑移率来建立目标滑移率并控制车辆的驾驶状况。 通过控制发动机输出和制动功率，实际滑差率与目标滑差率相匹配。 通过控制发动机输出和制动功率来控制车辆的行驶状态的步骤根据实际滑移率和目标滑移率之间的差异的时间差进行至少直到实际滑移率与目标 滑差率是第一次。 在实际滑移率与目标滑移率匹配至少一次之后，根据实际和目标滑移率之间的差异的比例来执行控制步骤。
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19.发明授权Anti-skid brake system for an automotive vehicle including brake force control 失效用于汽车的防滑制动系统，包括制动力控制
公开(公告)号：US5246279A
公开(公告)日：1993-09-21
申请号：US794249
申请日：1991-11-19
CPC分类号： B60T8/173
摘要： An assumed vehicle body speed is determined on the basis of the wheel speed detected by a wheel speed sensor for each wheel and a slip value indicating the tendency of locking the wheel is determined for a predetermined wheel speed on the basis of the assumed vehicle body speed and a wheel speed of the predetermined wheel. The braking force is controlled on the basis of the slip value. When no braking force is controlled and when at least one of the wheel speeds for all the wheels detected by the wheel speed sensors is larger than the assumed vehicle body speed previously determined, a new assumed vehicle body speed which follows is inhibited from being renewed to a larger value and the new assumed vehicle body speed is set as a value equal to the previous assumed vehicle body speed.
摘要翻译： 基于由每个车轮的车轮速度传感器检测的车轮速度来确定假定的车体速度，并且基于假定的车体速度确定表示针对预定车轮速度的车轮的锁定趋势的滑移值 和预定轮的车轮速度。 制动力根据滑移值进行控制。 当不控制制动力时，并且当由车轮速度传感器检测到的所有车轮的车轮速度中的至少一个大于预先确定的假定车身速度时，禁止更新到新的假定车身速度 将较大的值和新的假设车体速度设定为等于先前假定的车体速度的值。
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20.发明授权
公开(公告)号：US5353225A
公开(公告)日：1994-10-04
申请号：US718959
申请日：1991-06-21
CPC分类号： B60T8/175 , B60T2270/208
摘要： A traction control system for a motor vehicle having driving wheels and driven wheels includes a device for detecting the speed of each of the driving wheels of the vehicle, a device for detecting the speed of each of the driven wheels of the vehicle, a device for calculating a slip value of the driving wheels based on the detected speeds of the driving and driven wheels, a traction control device for controlling the driving wheel so that the slip value of each driving wheel is equal to a predetermined desired slip value when the slip value of each driving wheel is greater than the predetermined desired slip value, and a device for estimating a friction coefficient of a road surface which is employed when the predetermined desired slip value is determined. If slip of the driving wheel occurs when the vehicle is started, the estimating device calculates an acceleration of the driving wheel. The friction coefficient of the road surface is estimated based on an engine output when the acceleration of the driving wheel is greater than a predetermined value.
摘要翻译： 用于具有驱动轮和从动轮的机动车辆的牵引力控制系统包括用于检测车辆的每个驱动轮的速度的装置，用于检测车辆的每个从动轮的速度的装置， 基于检测到的驱动轮和从动轮的速度来计算驱动轮的滑移值;牵引控制装置，用于控制驱动轮，使得当滑动值为每个驱动轮的滑移值等于预定的期望滑移值时 每个驱动轮的大小大于所述预定的滑动值，以及用于估计在确定了所述预定滑动值时采用的路面的摩擦系数的装置。 如果在车辆启动时发生驱动轮的滑动，则估计装置计算驱动轮的加速度。 当驱动轮的加速度大于预定值时，基于发动机输出来估计路面的摩擦系数。
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