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    • 1. 发明授权
    • Vehicle state estimating device, vehicle control device, and vehicle state estimating method
    • 车辆状态估计装置,车辆控制装置和车辆状态估计方法
    • US09399470B2
    • 2016-07-26
    • US14642881
    • 2015-03-10
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Shingo Koumura
    • B60W40/00B60W40/11
    • B60W40/11B60W2510/227B60W2520/10B60W2520/28
    • A vehicle state estimating device for estimating the state amount of the vehicle at high accuracy from the wheel speed irrespective of the change in the vehicle property. A vehicle state estimating device includes a wheel speed detection unit that detects a wheel speed of each vehicle wheel; a vehicle speed detection unit that detects a vehicle speed; and a state amount estimation unit that estimates an unsprung state amount and/or a sprung state amount of the vehicle, based on a wheel speed of reverse phase of left and right wheels based on the wheel speed of each wheel detected by the wheel speed detection unit, and a value obtained by dividing a wheel base of a predetermined front-rear wheel by the vehicle speed detected by the vehicle speed detection unit.
    • 一种车辆状态估计装置,用于根据车轮速度高精度地估计车辆的状态量,而与车辆属性的变化无关。 车辆状态估计装置包括车轮速度检测单元,其检测每个车轮的车轮速度; 车速检测单元,其检测车速; 以及状态量估计单元,其基于由车轮速度检测器检测到的每个车轮的车轮速度,基于左右车轮的反相的车轮速度来估计车辆的簧下状态量和/或弹簧状态量 单位,以及通过将预定前后轮的车轮基座除以由车速检测单元检测到的车速而获得的值。
    • 3. 发明授权
    • Road surface condition estimation method, and road surface condition estimation apparatus
    • 路面状况估计方法和路面状况估计装置
    • US08942861B2
    • 2015-01-27
    • US14233223
    • 2012-07-18
    • Yasumichi Wakao
    • Yasumichi Wakao
    • B60W40/068B60T8/172
    • B60W40/068B60T8/172B60T2210/12B60W40/06B60W2510/227B60W2520/105B60W2520/28
    • The invention provides a method and apparatus capable of accurately estimating a road surface condition under a traveling vehicle using unsprung acceleration and wheel speed data. The unsprung fore-aft acceleration (Gx) is detected by an acceleration sensor (11) attached to a knuckle (31) which is an unsprung component of a vehicle. At the same time, the wheel speed (Vw) is detected and the variation (ΔVw) in wheel speed is calculated. Then the fluctuation range (σ(ΔVw)) of the variation in wheel speed and the fluctuation range (σ(Gx)) of the unsprung fore-aft acceleration are calculated. And whether the road surface is a rough road surface with some bumpiness or a flat (smooth) road surface is estimated from a relationship between the fluctuation range (σ(ΔVw)) of the variation in wheel speed and the fluctuation range (σ(Gx)) of the unsprung fore-aft acceleration.
    • 本发明提供一种能够使用非簧下加速度和车轮速度数据精确地估计行驶车辆下的路面状况的方法和装置。 簧下的前后加速度(Gx)由附接到作为车辆的簧下分量的转向节(31)的加速度传感器(11)检测。 同时,检测车轮速度(Vw),并计算车轮速度的变化(&Dgr; Vw)。 然后计算不规则前后加速度的车轮速度变化和波动范围(&sgr((Gx))的波动范围(&sgr((&Dgr; Vw))。 并且根据车轮速度变化的波动范围(& Dgr; Vw)与波动范围的变化范围(&Dgr; Vw)之间的关系估计路面是否是具有一些颠簸或平坦(平滑)路面的粗糙路面 &sgr;(Gx))簧下的前后加速度。
    • 5. 发明申请
    • VEHICLE STATE ESTIMATION DEVICE
    • 车辆状态估计装置
    • US20160339923A1
    • 2016-11-24
    • US15156678
    • 2016-05-17
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Shingo KOUMURA
    • B60W40/105G01P3/00
    • B60W30/02B60G17/06B60G2400/208B60G2500/10B60W2510/227B60W2520/14B60W2520/16B60W2520/28
    • Provided is a vehicle state estimation device (10) having a calculation unit (28) that calculates state quantities of at least a sprung of a vehicle based on wheel speeds of front left and right wheels and rear left and right wheels detected by detection devices. The calculation unit (28) calculates in-phase and reverse phase components of wheel speeds of left and right wheels for the front and rear wheels and calculates a pitch angular speed and a yaw angular speed of the sprung based on the in-phase and reverse phase components of the wheel speeds, respectively. The calculation unit (28) calculates in-phase and reverse phase components of vertical strokes of left and right suspensions for the front and rear wheels and calculates a vertical speed and a roll angular speed of the sprung based on the in-phase and reverse phase components of vertical strokes of the suspensions, respectively.
    • 提供一种具有计算单元(28)的车辆状态估计装置(10),该计算单元基于由检测装置检测出的前左右轮和后左右车轮的速度来计算至少一车辆的弹簧的状态量。 计算单元(28)计算前轮和后轮的左右轮的车轮速度的同相和反相分量,并且基于同相和反相计算簧上的俯仰角速度和偏转角速度 车轮速度的相位分量。 计算单元(28)计算用于前轮和后轮的左和右悬架的垂直冲程的同相和反相分量,并且基于同相和反相计算簧上的垂直速度和滚动角速度 分别为悬浮液的垂直冲程。
    • 6. 发明申请
    • VEHICLE STATE ESTIMATING DEVICE, VEHICLE CONTROL DEVICE, AND VEHICLE STATE ESTIMATING METHOD
    • 车辆状态估计装置,车辆控制装置和车辆状态估计方法
    • US20150258975A1
    • 2015-09-17
    • US14642881
    • 2015-03-10
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Shingo KOUMURA
    • B60W10/22B60W40/105
    • B60W40/11B60W2510/227B60W2520/10B60W2520/28
    • A vehicle state estimating device for estimating the state amount of the vehicle at high accuracy from the wheel speed irrespective of the change in the vehicle property. A vehicle state estimating device includes a wheel speed detection unit that detects a wheel speed of each vehicle wheel; a vehicle speed detection unit that detects a vehicle speed; and a state amount estimation unit that estimates an unsprung state amount and/or a sprung state amount of the vehicle, based on a wheel speed of reverse phase of left and right wheels based on the wheel speed of each wheel detected by the wheel speed detection unit, and a value obtained by dividing a wheel base of a predetermined front-rear wheel by the vehicle speed detected by the vehicle speed detection unit.
    • 一种车辆状态估计装置,用于根据车轮速度高精度地估计车辆的状态量,而与车辆属性的变化无关。 车辆状态估计装置包括车轮速度检测单元,其检测每个车轮的车轮速度; 车速检测单元,其检测车速; 以及状态量估计单元,其基于由车轮速度检测器检测到的每个车轮的车轮速度,基于左右车轮的反相的车轮速度来估计车辆的簧下状态量和/或弹簧状态量 单位,以及通过将预定前后轮的车轮基座除以由车速检测单元检测到的车速而获得的值。
    • 7. 发明申请
    • ROAD SURFACE CONDITION ESTIMATING METHOD, AND ROAD SURFACE CONDITION ESTIMATING APPARATUS
    • 道路表面条件估算方法和道路表面条件估算装置
    • US20140163770A1
    • 2014-06-12
    • US14233223
    • 2012-07-18
    • Yasumichi Wakao
    • Yasumichi Wakao
    • B60W40/068
    • B60W40/068B60T8/172B60T2210/12B60W40/06B60W2510/227B60W2520/105B60W2520/28
    • The invention provides a method and apparatus capable of accurately estimating a road surface condition under a traveling vehicle using unsprung acceleration and wheel speed data. The unsprung fore-aft acceleration (Gx) is detected by an acceleration sensor (11) attached to a knuckle (31) which is an unsprung component of a vehicle. At the same time, the wheel speed (Vw) is detected and the variation (ΔVw) in wheel speed is calculated. Then the fluctuation range (σ(ΔVw)) of the variation in wheel speed and the fluctuation range (σ(Gx)) of the unsprung fore-aft acceleration are calculated. And whether the road surface is a rough road surface with some bumpiness or a flat (smooth) road surface is estimated from a relationship between the fluctuation range (σ(ΔVw)) of the variation in wheel speed and the fluctuation range (σ(Gx)) of the unsprung fore-aft acceleration.
    • 本发明提供一种能够使用非簧下加速度和车轮速度数据精确地估计行驶车辆下的路面状况的方法和装置。 簧下的前后加速度(Gx)由附接到作为车辆的簧下分量的转向节(31)的加速度传感器(11)检测。 同时,检测车轮速度(Vw),并计算车轮速度的变化(&Dgr; Vw)。 然后计算不规则前后加速度的车轮速度变化和波动范围(&sgr((Gx))的波动范围(&sgr((&Dgr; Vw))。 并且根据车轮速度变化的波动范围(& Dgr; Vw)与波动范围的变化范围(&Dgr; Vw)之间的关系估计路面是否是具有一些凹凸或平坦(平滑)路面的粗糙路面 &sgr;(Gx))簧下的前后加速度。