Electric braking system for vehicle

    公开(公告)号:US09604622B2

    公开(公告)日:2017-03-28

    申请号:US14776242

    申请日:2014-03-17

    IPC分类号: B60T17/22 B60T8/171 B60T13/74

    摘要: A vehicle electric braking device wherein: a first degree of contribution associated with the actual pressing force value and a second degree of contribution associated with an estimated pressing force value, are determined based on operation amount of a braking operation member; the second degree of contribution is determined to be larger than the first degree when the operation amount is small; the first degree of contribution is determined to be larger than the second when the operation amount is large; a combined pressing force is calculated based on a value obtained by accounting for the first degree of contribution in the actual pressing force value and a value obtained by accounting for the second degree of contribution in the estimated pressing force value; and an electric motor target power supply amount is calculated based on the combined pressing force and a target pressing force calculated from the operation amount.

    Electric braking system for vehicle
    3.
    发明授权
    Electric braking system for vehicle 有权
    车用电动制动系统

    公开(公告)号:US09505385B2

    公开(公告)日:2016-11-29

    申请号:US14776110

    申请日:2014-03-17

    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。

    Device for controlling traveling of vehicle
    4.
    发明授权
    Device for controlling traveling of vehicle 有权
    用于控制车辆行驶的装置

    公开(公告)号:US09139173B2

    公开(公告)日:2015-09-22

    申请号:US13120750

    申请日:2009-09-30

    摘要: After a vehicle has entered a curve, a deviation (Sch) between a target turning state quantity Td and an actual turning state quantity Ta is computed. In a stage in which Sch does not reach a predetermined value after the vehicle has entered the curve, the possibility of the vehicle traveling in the curve is judged to be low, and the reliability of the curve information Rc, Pc is judged to be low. In this case, a determination for prohibiting execution of control (So=0) is made. In a stage after Sch has reached the predetermined value, the possibility of the vehicle traveling in the curve is judged to be high, and the reliability of the curve information Rc, Pc is judged to be high. In this case, a determination for permitting execution of the control (So=1) is made. Deceleration control is started and executed only when a control start condition is satisfied, and the determination for permission is made. Accordingly, even when the control start condition is satisfied, the deceleration control is not started, if the prohibition determination is made. Thus, the reliability of the curve information based on map information on the vehicle is evaluated reliably, and the deceleration control within the curve can be prevented from being unnecessarily executed on the basis of curve information whose reliability is low.

    摘要翻译: 在车辆进入曲线之后,计算目标转弯状态量Td与实际转弯状态量Ta之间的偏差(Sch)。 在车辆进入曲线之后,在Sch达不到预定值的阶段,车辆在曲线中行驶的可能性被判断为低,并且曲线信息Rc,Pc的可靠性被判断为低 。 在这种情况下,进行禁止执行控制(So = 0)的判定。 在Sch达到预定值之后的阶段,车辆在曲线中行驶的可能性被判断为高,曲线信息Rc,Pc的可靠性被判定为高。 在这种情况下,进行允许执行控制的判定(So = 1)。 只有满足控制开始条件才开始执行减速控制,进行许可判定。 因此,即使满足控制开始条件,如果进行禁止判定,则不开始减速控制。 因此,可靠地评估基于车辆上的地图信息的曲线信息的可靠性,并且可以基于可靠性低的曲线信息来防止曲线内的减速控制被不必要地执行。

    DEVICE FOR CONTROLLING TRAVELING OF VEHICLE
    7.
    发明申请
    DEVICE FOR CONTROLLING TRAVELING OF VEHICLE 有权
    用于控制车辆行驶的装置

    公开(公告)号:US20110178689A1

    公开(公告)日:2011-07-21

    申请号:US13120750

    申请日:2009-10-30

    IPC分类号: G06F7/00 B60T8/1755 B60T7/12

    摘要: After a vehicle has entered a curve, a deviation (Sch) between a target turning state quantity Td and an actual turning state quantity Ta is computed. In a stage in which Sch does not reach a predetermined value after the vehicle has entered the curve, the possibility of the vehicle traveling in the curve is judged to be low, and the reliability of the curve information Rc, Pc is judged to be low. In this case, a determination for prohibiting execution of control (So=0) is made. In a stage after Sch has reached the predetermined value, the possibility of the vehicle traveling in the curve is judged to be high, and the reliability of the curve information Rc, Pc is judged to be high. In this case, a determination for permitting execution of the control (So=1) is made. Deceleration control is started and executed only when a control start condition is satisfied, and the determination for permission is made. Accordingly, even when the control start condition is satisfied, the deceleration control is not started, if the prohibition determination is made. Thus, the reliability of the curve information based on map information on the vehicle is evaluated reliably, and the deceleration control within the curve can be prevented from being unnecessarily executed on the basis of curve information whose reliability is low.

    摘要翻译: 在车辆进入曲线之后,计算目标转弯状态量Td与实际转弯状态量Ta之间的偏差(Sch)。 在车辆进入曲线之后,在Sch达不到预定值的阶段,车辆在曲线中行驶的可能性被判断为低,并且曲线信息Rc,Pc的可靠性被判断为低 。 在这种情况下,进行禁止执行控制(So = 0)的判定。 在Sch达到预定值之后的阶段,车辆在曲线中行驶的可能性被判断为高,曲线信息Rc,Pc的可靠性被判定为高。 在这种情况下,进行允许执行控制的判定(So = 1)。 只有满足控制开始条件才开始执行减速控制,进行许可判定。 因此,即使满足控制开始条件,如果进行禁止判定,则不开始减速控制。 因此,可靠地评估基于车辆上的地图信息的曲线信息的可靠性,并且可以基于可靠性低的曲线信息来防止曲线内的减速控制被不必要地执行。

    Steering Control Apparatus for a Vehicle
    8.
    发明申请
    Steering Control Apparatus for a Vehicle 有权
    车辆转向控制装置

    公开(公告)号:US20070294008A1

    公开(公告)日:2007-12-20

    申请号:US11760082

    申请日:2007-06-08

    IPC分类号: B62D6/00

    CPC分类号: B62D5/0472

    摘要: A steering control apparatus is provided for a vehicle having a steering wheel for steering steered wheels of the vehicle, a power source for generating power, and drive shafts for transferring the power to the steered wheels, to be served as driving wheels of the vehicle. The apparatus comprises an accelerating operation detection device for detecting accelerating operation amount by a vehicle driver, and a steering torque control device for controlling steering torque created by the steering wheel, and applying torque steer reducing torque to the steering wheel. The steering torque control device is adapted to reduce torque steer, which is transiently created on the steering wheel due to characteristics of the drive shafts, when the accelerating operation amount detected by the accelerating operation detection device becomes equal to or greater than a predetermined value.

    摘要翻译: 本发明提供一种转向控制装置,该车辆具有用于车辆的转向轮的方向盘,用于产生动力的动力源和用于将动力传递到转向轮的驱动轴,用作车辆的驱动轮。 该装置包括用于检测车辆驾驶员的加速操作量的加速操作检测装置和用于控制由方向盘产生的转向扭矩并且向转向轮施加扭矩转向减速转矩的转向转矩控制装置。 当加速运转检测装置检测到的加速运转量达到规定值以上时,转向转矩控制装置适于减小由于驱动轴的特性而在方向盘上暂时产生的扭矩转向。

    BRAKING CONTROL DEVICE FOR VEHICLE
    10.
    发明申请
    BRAKING CONTROL DEVICE FOR VEHICLE 有权
    汽车制动控制装置

    公开(公告)号:US20150151727A1

    公开(公告)日:2015-06-04

    申请号:US14368868

    申请日:2012-12-25

    IPC分类号: B60T8/172 B60T8/58 B60T8/171

    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。