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公开(公告)号：US20150151727A1
公开(公告)日：2015-06-04
申请号：US14368868
申请日：2012-12-25
CPC分类号： B60T8/172 , B60T7/042 , B60T8/171 , B60T8/58 , B60T13/662 , B60T13/741 , B60T17/22 , F16D65/18 , F16D2066/005 , F16D2125/40 , F16D2125/48
摘要： Based on a difference between target and actual values of a friction member force pressing a brake disc, feedback control over the pressing force is executed. As the actual value, a “limit pressing force (Fbs) obtained by placing a limitation on a temporal change amount of the Fba based on a limit value (Lmt)” is used. The limit value (Lmt) is set based on an electric motor speed (dMkt, dMka), a wheel speed (Vwa), and a temporal change amount (ΔTmp) of the friction member temperature. The Lmt is set to increase as the dMkt (dMka) increases and the temporal change amount (ΔTmp) of the temperature increases, and to also increase as the wheel speed (Vwa) decreases. Thus, even when a rotating member (brake disc) is deformed, braking torque control can be appropriately executed without accelerating a fluctuation of a braking torque on the wheel.
摘要翻译： 基于按压制动盘的摩擦构件力的目标值和实际值之间的差异，执行对按压力的反馈控制。 作为实际值，使用通过基于限制值（Lmt）对Fba的时间变化量进行限制而获得的“限制按压力（Fbs）”。 基于电动机速度（dMkt，dMka），车轮速度（Vwa）和摩擦构件温度的时间变化量（＆Dgr; Tmp）来设定极限值（Lmt）。 Lmt设置为随着dMkt（dMka）增加而增加，并且温度的时间变化量（＆Dgr; Tmp）增加，并且随着车轮速度（Vwa）的降低也增加。 因此，即使旋转构件（制动盘）变形，也可以适当地执行制动转矩控制，而不会加速车轮上的制动转矩的波动。
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公开(公告)号：US09604608B2
公开(公告)日：2017-03-28
申请号：US14361760
申请日：2012-11-30
CPC分类号： B60T8/17 , B60T7/042 , B60T8/171 , B60T8/172 , B60T8/173 , B60T13/586 , F16D61/00 , H02P3/06 , H02P7/28
摘要： An electric motor is controlled based on a target energization amount calculated based on an operation amount of a braking operation member. Based on the operation amount, it is determined whether or not an inertia compensation control for compensating for the influence of the inertia of a brake actuator is necessary. When the inertia compensation control is determined to be necessary, an inertia compensation energization amount compensating for the influence of the inertia of the brake actuator is calculated using a time-series pattern set in advance based on the maximum response of the brake actuator. Using the inertia compensation energization amount, the target energization amount is calculated. The vehicle brake control device causes an electric motor to generate a braking torque and appropriately compensates for the influence of the inertia of the entire device including the inertia of the electric motor.
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公开(公告)号：US09475471B2
公开(公告)日：2016-10-25
申请号：US14368868
申请日：2012-12-25
IPC分类号： G06F7/70 , B60T8/172 , B60T13/74 , B60T7/04 , B60T13/66 , B60T17/22 , F16D65/18 , B60T8/171 , B60T8/58 , F16D66/00 , F16D125/40 , F16D125/48
CPC分类号： B60T8/172 , B60T7/042 , B60T8/171 , B60T8/58 , B60T13/662 , B60T13/741 , B60T17/22 , F16D65/18 , F16D2066/005 , F16D2125/40 , F16D2125/48
摘要： Based on a difference between target and actual values of a friction member force pressing a brake disc, feedback control over the pressing force is executed. As the actual value, a “limit pressing force (Fbs) obtained by placing a limitation on a temporal change amount of the Fba based on a limit value (Lmt)” is used. The limit value (Lmt) is set based on an electric motor speed (dMkt, dMka), a wheel speed (Vwa), and a temporal change amount (ΔTmp) of the friction member temperature. The Lmt is set to increase as the dMkt (dMka) increases and the temporal change amount (ΔTmp) of the temperature increases, and to also increase as the wheel speed (Vwa) decreases. Thus, even when a rotating member (brake disc) is deformed, braking torque control can be appropriately executed without accelerating a fluctuation of a braking torque on the wheel.
摘要翻译： 基于按压制动盘的摩擦构件力的目标值和实际值之间的差异，执行对按压力的反馈控制。 作为实际值，使用通过基于限制值（Lmt）对Fba的时间变化量进行限制而获得的“限制按压力（Fbs）”。 基于电动机速度（dMkt，dMka），车轮速度（Vwa）和摩擦构件温度的时间变化量（ΔTmp）来设定极限值（Lmt）。 Lmt被设置为随着dMkt（dMka）增加而增加，并且温度的时间变化量（ΔTmp）增加，并且随着车轮速度（Vwa）的降低也增加。 因此，即使旋转构件（制动盘）变形，也可以适当地执行制动转矩控制，而不会加速车轮上的制动转矩的波动。
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公开(公告)号：US09221442B2
公开(公告)日：2015-12-29
申请号：US14369243
申请日：2012-12-25
IPC分类号： G06F7/70 , G06F19/00 , G06G7/00 , G06G7/76 , B60T8/32 , B60T7/04 , B60T13/74 , B60T17/22 , F16D65/18 , B60T8/171 , B60T8/172 , F16D66/00 , F16D125/40 , F16D125/48
CPC分类号： B60T8/3255 , B60T7/042 , B60T8/171 , B60T8/172 , B60T13/741 , B60T17/22 , F16D65/18 , F16D2066/005 , F16D2125/40 , F16D2125/48
摘要： Electric motor control is based on a target energization amount calculated using a braking operation member operation amount. A state quantity is acquired as an actual value, indicating an actual actuation state of a movable member located in a power transmission path from the electric motor to a friction member. Using the operation amount, it is determined whether or not inertia compensation control is necessary, which compensates for the inertia influence of a brake actuator during electric motor deceleration. “A target value corresponding to the actual value” is determined as a reference value, which is calculated based on the operation amount at a time when inertia compensation control is necessary. Based on the actual and reference values, “an inertia compensation energization amount for decreasing the target energization amount to compensate for the influence of inertia” is calculated, and the target energization amount is adjusted using the inertia compensation energization amount.
摘要翻译： 电动机控制基于使用制动操作构件操作量计算出的目标通电量。 获取状态量作为实际值，指示位于从电动机到摩擦构件的动力传递路径中的可动构件的实际动作状态。 使用操作量，确定是否需要惯性补偿控制，这补偿了电动机减速期间制动致动器的惯性影响。 “对应于实际值”的目标值被确定为基于需要惯性补偿控制时的操作量来计算的参考值。 根据实际值和基准值，计算“用于减小目标通电量的惯性补偿通电量，以补偿惯性的影响”，并且使用惯性补偿通电量来调整目标通电量。
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公开(公告)号：US09505385B2
公开(公告)日：2016-11-29
申请号：US14776110
申请日：2014-03-17
IPC分类号： B60T8/172 , B60T13/74 , F16D55/225 , B60T8/32
CPC分类号： B60T8/172 , B60T8/3255 , B60T13/741 , F16D55/225
摘要： When a braking operation amount is reduced, a stiffness value representing a ratio of variation in actual pressing force of a friction member to a variation in actual position of an electric motor are sequentially computed. The actual position when the stiffness value changes from being higher than or equal to a predetermined value to being lower than the predetermined value is stored as a candidate position. When a duration during which the stiffness value is lower than the predetermined value is shorter than a clearance corresponding value corresponding to a transmission member clearance in a state where the candidate position is stored, the candidate position is deleted. When the duration during which the stiffness value is lower than the predetermined value exceeds the clearance corresponding value, the stored candidate position is determined as a reference position at which the friction member and the rotary member begin contacting each other.
摘要翻译： 当制动操作量减少时，依次计算表示摩擦构件的实际按压力的变化比与电动机的实际位置的变化的比率的刚度值。 当刚度值从高于或等于预定值变化到低于预定值的实际位置被存储为候选位置。 当刚度值低于预定值的持续时间短于在存储候选位置的状态下对应于传动构件间隙的间隙对应值时，候选位置被删除。 当刚度值低于预定值的持续时间超过间隙对应值时，所存储的候选位置被确定为摩擦构件和旋转构件开始彼此接触的参考位置。
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公开(公告)号：US09616865B2
公开(公告)日：2017-04-11
申请号：US14369255
申请日：2012-12-25
IPC分类号： B60T8/173 , B60T8/171 , F16D65/18 , B60T7/04 , B60T13/74 , B60T17/22 , F16D66/00 , F16D125/40 , F16D125/48
CPC分类号： B60T8/173 , B60T7/042 , B60T8/171 , B60T13/741 , B60T17/22 , F16D65/18 , F16D2066/005 , F16D2125/40 , F16D2125/48
摘要： Based on a difference (ΔFb) between a target value (Fbt) and an actual value (Fba) of a friction member force for pressing a brake disc, a feedback energization amount (Ipt) is calculated using a proportional gain smaller than an ultimate sensitivity gain. If ΔFb falls within a fluctuation range of torque ripple, a first compensation energization amount (Ibt) is calculated using a proportional gain larger than the ultimate sensitivity gain, and if ΔFb falls outside the fluctuation range, the first compensation energization amount (Ibt) is calculated to be constant. A second compensation energization amount (Ift) is calculated based on a calculation characteristic that is preset based on a torque fluctuation over a predetermined range of an electric motor position and based on an actual position of the electric motor. An indication energization amount calculated according to Fbt is adjusted by Ipt, Ibt, and Ift to calculate a target energization amount.
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公开(公告)号：US20150081186A1
公开(公告)日：2015-03-19
申请号：US14369255
申请日：2012-12-25
CPC分类号： B60T8/173 , B60T7/042 , B60T8/171 , B60T13/741 , B60T17/22 , F16D65/18 , F16D2066/005 , F16D2125/40 , F16D2125/48
摘要： Based on a difference (ΔFb) between a target value (Fbt) and an actual value (Fba) of a friction member force for pressing a brake disc, a feedback energization amount (Ipt) is calculated using a proportional gain smaller than an ultimate sensitivity gain. If ΔFb falls within a fluctuation range of torque ripple, a first compensation energization amount (Ibt) is calculated using a proportional gain larger than the ultimate sensitivity gain, and if ΔFb falls outside the fluctuation range, the first compensation energization amount (Ibt) is calculated to be constant. A second compensation energization amount (Ift) is calculated based on a calculation characteristic that is preset based on a torque fluctuation over a predetermined range of an electric motor position and based on an actual position of the electric motor. An indication energization amount calculated according to Fbt is adjusted by Ipt, Ibt, and Ift to calculate a target energization amount.
摘要翻译： 基于用于按压制动盘的摩擦构件力的目标值（Fbt）和实际值（Fba）之间的差（＆Dgr; Fb），使用比例增益小的比例增益来计算反馈通电量（Ipt） 极限灵敏度增益。 如果＆Dgr; Fb落在转矩波动的波动范围内，则使用比最终灵敏度增益大的比例增益来计算第一补偿通电量（Ibt），并且如果＆Dgr; Fb落在波动范围之外，则第一补偿通电量 （Ibt）计算为常数。 基于根据电动机位置的预定范围内的转矩波动预设的计算特性，并基于电动机的实际位置来计算第二补偿通电量（Ift）。 根据Fbt计算的指示通电量由Ipt，Ibt，Ift进行调整，计算出目标通电量。
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