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    • 1. 发明授权
    • Braking force control system for turning having correction parameters
capabilities and method thereof
    • 具有校正参数功能的车削制动力控制系统及其方法
    • US6074020A
    • 2000-06-13
    • US748410
    • 1996-11-13
    • Akira TakahashiYutaka HiwatashiKoji MatsunoMunenori Matsuura
    • Akira TakahashiYutaka HiwatashiKoji MatsunoMunenori Matsuura
    • B60T8/1755B60T8/06
    • B60T8/1755
    • A braking force control system and method of a vehicle includes a vehicle speed detecting section, a steering angle detecting section, a yaw rate detecting section, a target yaw rate calculating section, a yaw rate deviation calculating section, turning requirement detecting means for detecting a driver's requirement to turn the vehicle, brake pressure correction coefficient generating section, a target braking force calculating section, a braking force correction section for correcting the braking force according to the driver's requirement to turn the vehicle, a braking wheel determining section for determining an object wheel to apply brakes, an output judging section, a brake signal outputting section and a brake drive apparatus for applying brake pressure to the wheel cylinder of the object wheel. Whereby, the driver can make a sharp turn even when the normal braking force control is operative.
    • 车辆的制动力控制系统和方法包括车速检测部,转向角检测部,横摆率检测部,目标横摆率计算部,横摆率偏差计算部,转弯要求检测单元, 驾驶员要求转动车辆,制动压力校正系数产生部分,目标制动力计算部分,用于根据驾驶员要求转动车辆来校正制动力的制动力校正部分,用于确定物体的制动轮确定部分 用于施加制动的车轮,输出判断部分,制动信号输出部分和用于对车轮的轮缸施加制动压力的制动驱动装置。 由此,即使正常的制动力控制可操作,驾驶员也可以急转弯。
    • 2. 发明授权
    • System for controlling braking of an automotive vehicle
    • 用于控制汽车制动的系统
    • US5915800A
    • 1999-06-29
    • US664009
    • 1996-06-14
    • Yutaka HiwatashiAkira TakahashiKoji MatsunoMunenori Matsuura
    • Yutaka HiwatashiAkira TakahashiKoji MatsunoMunenori Matsuura
    • B60T8/1755B60T8/58
    • B60T8/1755
    • A braking force control system comprises a yaw rate sensor for detecting an actual yaw rate of a vehicle, a target yaw rate calculating section for detecting a vehicle speed and a steering angle to calculate a target yaw rate, a yaw-rate difference calculating section for calculating a difference in yaw rate by subtracting the target yaw rate from the actual yaw rate, and a braked-wheel discriminating section for selecting a rear-inside wheel as a braked wheel when the sign of the actual yaw rate is different from that of the difference in yaw rate, and for selecting a front-outside wheel as the braked wheel when the sign of the actual yaw rate is the same as that of the difference in yaw rate. Therefore, when the vehicle is in an under-steering tendency, the rear-inside wheel is selected, and when it is in an over-steering tendency, the front-outside wheel is selected. In addition, the system may further comprise an output discriminating section for comparing the difference in yaw rate with a discriminating threshold to discriminate as to whether the difference in yaw rate is within a control region. A first threshold is set as the discriminating threshold. After the under-steering tendency is changed to the over-steering tendency, a set period of time and a second threshold, the absolute value of which is smaller than that of the first threshold, are set. With this construction, it is possible to smoothly perform the control without giving uncomfortable feeling to a driver, and it is also possible to restrain the control by a rear wheel.
    • 一种制动力控制系统,包括用于检测车辆的实际横摆角速度的偏航率传感器,用于检测车速的目标横摆率计算部和用于计算目标横摆率的转向角;偏航率差计算部, 通过从实际横摆率减去目标横摆角速度来计算偏航率的差异;以及制动轮识别部,用于当实际横摆率的符号与实际横摆率的符号不同时,选择作为制动轮的后内轮 偏航率的差异,以及当实际横摆率的符号与横摆率的差异相同时,用于选择作为制动轮的前外轮。 因此,当车辆处于转向不足的倾向时,选择后内侧轮,并且当处于过度转向倾向时,选择前外轮。 此外,该系统还可以包括输出鉴别部分,用于将偏航率的差异与识别阈值进行比较,以区分横摆率的差异是否在控制区域内。 将第一阈值设置为鉴别阈值。 在转向不足的倾向变为过度转向倾向之后,设定其绝对值小于第一阈值的设定时间段和第二阈值。 利用这种结构,可以平稳地执行控制而不会给驾驶员带来不舒适的感觉,并且还可以抑制后轮的控制。
    • 3. 发明授权
    • Braking force control system and the method thereof
    • 制动力控制系统及其方法
    • US5700073A
    • 1997-12-23
    • US681525
    • 1996-07-23
    • Yutaka HiwatashiKoji MatsunoAkira TakahashiMunenori Matsuura
    • Yutaka HiwatashiKoji MatsunoAkira TakahashiMunenori Matsuura
    • B60T8/172B60T8/1755B60T8/1763B60T8/58
    • B60T8/1755
    • A braking force control system and method of a vehicle comprises an estimated yaw rate calculating section for calculating an estimated yaw rate on a road surface having low friction coefficient, a target yaw rate differential calculating section for calculating a target yaw rate differential, an estimated yaw rate differential calculating section for calculating an estimated yaw rate differential, a yaw rate differential deviation calculating section for calculating a deviation of the both differentials, a first target braking force calculating section for calculating a first target braking force, a yaw rate deviation calculating section for calculating a deviation of an actual yaw rate and a target yaw rate, a second target braking force calculating section for calculating a second target braking force, a final target braking force calculating section for calculating a final target braking force based on the first and second target braking forces. When an output judging section judges that the deviation of the actual yaw rate and the target yaw rate is in the control zone, a brake signal is outputted to a brake drive section so as to apply the final target braking force to a braking wheel selected in a braking wheel determining section, whereby the vehicle can make a smooth and stable turn without causing spins or drift-outs during cornerings.
    • 车辆的制动力控制系统和方法包括估计的横摆率计算部分,用于计算具有低摩擦系数的路面上的估计横摆角速度,用于计算目标横摆角速度差的目标横摆角速度差分计算部,估计偏航 用于计算估计的横摆角速度差的速率差分计算部分,用于计算两个差值的偏差的横摆率差分偏差计算部分,用于计算第一目标制动力的第一目标制动力计算部分,用于计算第一目标制动力的横摆率偏差计算部分, 计算实际横摆率和目标偏航率的偏差,用于计算第二目标制动力的第二目标制动力计算部,基于第一和第二目标计算最终目标制动力的最终目标制动力计算部 制动力。 当输出判断部判定实际横摆率和目标横摆角速度的偏差在控制区域内时,制动信号被输出到制动驱动部,以将最终目标制动力施加到在 制动轮确定部分,由此车辆可以在转弯期间不会引起旋转或漂移而平稳而稳定地转动。
    • 4. 发明授权
    • Traction control system for four wheel drive vehicle and the method
thereof
    • 四轮驱动车牵引力控制系统及其方法
    • US5850616A
    • 1998-12-15
    • US709042
    • 1996-09-06
    • Koji MatsunoYutaka HiwatashiAkira TakahashiMunenori Matsuura
    • Koji MatsunoYutaka HiwatashiAkira TakahashiMunenori Matsuura
    • B60T8/175B60T8/1755B60T8/1769B60W10/04B60W10/18B60K17/348
    • B60T8/1769B60T8/175B60T2270/202
    • A traction control system and method of a four-wheel drive vehicle comprises an engine control apparatus, a brake drive apparatus for automatically and independently applying brake to each of four wheels, wheel speed detecting means, vehicle speed detecting means, steering angle detecting means, yaw rate detecting means, target yaw rate calculating means, yaw rate deviation calculating means, slip amount calculating means for calculating an actual slip amount, reference slip amount storing means for memorizing a reference slip amount, target slip amount determining means for determining a target slip amount based on the reference slip amount, traction control judging means for outputting a traction control signal when a traction control is needed, target braking force calculating means, target engine torque calculating means. When a traction control is needed, the target slip amount determining means determine a target slip amount of a wheel needing the traction control. The target braking force calculating means produce a braking force according to the difference between the target slip amount and the actual slip amount and brake is automatically applied to a wheel requiring the traction control through the brake drive apparatus. At the same time, the target engine torque calculating means produce a signal to the engine control apparatus so as to reduce engine torque.
    • 四轮驱动车辆的牵引力控制系统和方法包括发动机控制装置,用于自动且独立地对四个车轮施加制动的制动驱动装置,车轮速度检测装置,车速检测装置,转向角检测装置, 横摆率检测装置,目标横摆率计算装置,横摆率偏差计算装置,用于计算实际滑移量的滑移量计算装置,用于存储基准滑移量的基准滑移量存储装置,用于确定目标滑差的目标滑移量确定装置 牵引控制判断装置,用于在需要牵引力控制时输出牵引控制信号,目标制动力计算装置,目标发动机扭矩计算装置。 当需要牵引力控制时,目标滑移量确定装置确定需要牵引力控制的车轮的目标滑移量。 目标制动力计算装置根据目标滑移量和实际滑移量之间的差产生制动力,并且制动被自动施加到通过制动驱动装置进行牵引力控制的车轮。 同时,目标发动机扭矩计算装置向发动机控制装置产生一个信号,以便减小发动机转矩。
    • 5. 发明授权
    • Vehicle motion control system
    • 车辆运动控制系统
    • US5816669A
    • 1998-10-06
    • US733582
    • 1996-10-18
    • Yutaka HiwatashiKoji MatsunoAkira TakahashiMunenori Matsuura
    • Yutaka HiwatashiKoji MatsunoAkira TakahashiMunenori Matsuura
    • B62D6/00B60T8/172B60T8/1755B60T8/1764B62D7/14B62D7/15B60T8/32
    • B62D7/159B60T8/1755B60T2260/022
    • In a vehicle motion control system, a target rear-wheel steering-angle calculating section calculates a target rear-wheel steering angle, a rear-wheel steering-quantity setting section sets a rear-wheel steering quantity, and a rear-wheel steering signal output section outputs a rear-wheel steering quantity to a motor driving section to perform a steering angle control. In addition, a front-and-rear wheel steering response-parameter calculating section calculates a response parameter, and a front-and-rear wheel steering target yaw-rate calculating section calculates a target yaw rate. A yaw-rate difference calculating section calculates a yaw-rate difference, a target braking-force calculating section calculates a target braking force, and a braked-wheel discriminating section selects a wheel to be braked. When an output discriminating section determines that there is within a controllable region, a braking signal output section outputs a signal to a brake driving section so as to add the target braking force to the selected wheel.
    • 在车辆运动控制系统中,目标后轮转向角计算部计算目标后轮转向角,后轮转向量设定部设定后轮转向量和后轮转向信号 输出部将后轮转向量输出到电动机驱动部,进行转向角控制。 此外,前后转向转向响应参数运算部分计算响应参数,前轮和后轮转向目标横摆率计算部分计算目标横摆率。 偏航率差分计算部分计算偏航率差异,目标制动力计算部分计算目标制动力,并且制动轮识别部分选择要制动的车轮。 当输出识别部分确定存在可控区域内时,制动信号输出部分向制动器驱动部分输出信号,以将目标制动力加到所选择的车轮上。
    • 6. 发明授权
    • Vehicle dynamic control system
    • 车辆动态控制系统
    • US06219609B1
    • 2001-04-17
    • US09174538
    • 1998-10-19
    • Koji MatsunoMunenori MatsuuraToshihiro KonnoAkira TakahashiAtsushi Mine
    • Koji MatsunoMunenori MatsuuraToshihiro KonnoAkira TakahashiAtsushi Mine
    • B60T800
    • B60T8/1755B60T2201/14B60T2201/16B60T2210/24B60T2210/36
    • The present invention provides a vehicle dynamic control system which alters characteristics of respective vehicle movement controllers so that they can function properly against coming and foreseeable running conditions and current running conditions, recognizing beforehand details of an emerging curve on the road to be traveled. The system comprises a vehicle movement control alterant and at least one among vehicle movement controllers, i.e., a brake controller, a left/right wheel differential limiter controller and power distribution controller. When the vehicle is approaching the curve, the vehicle movement control alterant alters characteristics of a braking controller, the left/right wheel differential limiter controller and the power distribution controller to those favorable to turning for driving through a curve appropriately. When the vehicle is approaching the curve end, the alternate alters characteristics of the left/right differential controller to those favorable to stabilizing running so that the vehicle can pass the curve end and go into straight road appropriately.
    • 本发明提供一种车辆动态控制系统,其改变各个车辆运动控制器的特性,使得它们能够适当地运行抵抗可预见的运行条件和当前运行状况,预先识别要行驶的道路上的出现曲线的细节。 该系统包括车辆运动控制变更和车辆运动控制器中的至少一个,即制动控制器,左/右车轮差速器限制器控制器和配电控制器。 当车辆接近曲线时,车辆移动控制改变了将制动控制器,左/右车轮差速器限制器控制器和配电控制器的特性改变成适合于通过曲线行驶的车轮。 当车辆接近曲线端时,交替改变左/右差速器控制器的特性,使其有利于稳定运行,使得车辆能够通过曲线端并适当地进入直路。
    • 8. 发明授权
    • Vehicle dynamic control system
    • 车辆动态控制系统
    • US06392535B1
    • 2002-05-21
    • US09722399
    • 2000-11-28
    • Koji MatsunoMunenori Matsuura
    • Koji MatsunoMunenori Matsuura
    • B60Q100
    • B60Q9/00B60T8/1755B60T2260/04B60W10/04B60W10/06B60W10/10B60W10/184B60W30/18172B60W40/072B60W40/076B60W50/14B60W2050/0051B60W2050/0071B60W2510/182B60W2520/10B60W2520/105B60W2520/125B60W2550/402
    • A vehicle dynamic control system includes: (a) a running condition detecting system for detecting running conditions of a vehicle; (b) a road data detecting system for detecting road data relating to a road in front of the vehicle; (c) a permissible speed calculating system for calculating a permissible speed for passing through a curve based on the running conditions and the road data; (d) an equivalent linear distance calculating system for calculating an equivalent linear distance as a distance for performing a deceleration operation by shortening a distance from a point of operation to the curve in front of the vehicle based on a permissible deceleration at a winding part of the road and a curvature of the winding part between the point of operation and the curve so as to consider a permissible deceleration applicable at the winding part of the road; (e) a passing judgement system for judging a possibility of the vehicle passing through the curve by a parameter based on at least the equivalent linear distance and the permissible speed; and (f) a warning and deceleration control system for activating at least one of a warning system or a decelerating system based on a judgement of the passing judgement system. The invention also relates to a method for controlling a vehicle using this system.
    • 车辆动态控制系统包括:(a)用于检测车辆行驶状况的行驶状态检测系统; (b)道路数据检测系统,用于检测与车辆前面的道路相关的道路数据; (c)容许速度计算系统,用于根据运行条件和道路数据计算通过曲线的允许速度; (d)等效线性距离计算系统,用于根据在车辆前方的弯道处的允许减速度,通过缩短从操作点到曲线的距离来计算作为执行减速操作的距离的等效线性距离 道路和曲拐点之间的弯曲部分,以考虑在道路的绕组部分应用的允许减速度; (e)通过判断系统,用于基于至少等效的线性距离和允许速度,通过参数来判断车辆通过曲线的可能性; 以及(f)用于根据通过判断系统的判断激活警告系统或减速系统中的至少一个的警告和减速控制系统。 本发明还涉及一种使用该系统控制车辆的方法。
    • 9. 发明授权
    • Vehicle dynamic control system
    • 车辆动态控制系统
    • US06188316B1
    • 2001-02-13
    • US09266627
    • 1999-03-11
    • Koji MatsunoMunenori Matsuura
    • Koji MatsunoMunenori Matsuura
    • B60Q100
    • B60Q9/00B60T8/1755B60T2260/04B60W10/04B60W10/06B60W10/10B60W10/184B60W30/18172B60W40/072B60W40/076B60W50/14B60W2050/0051B60W2050/0071B60W2510/182B60W2520/10B60W2520/105B60W2520/125B60W2550/402
    • Recognizing curve geometry, judgement accuracy of an over speed condition is improved with minimal increase of calculation load, even when the road to an objective curve is not a straight line. The standard deceleration calculator calculates a standard deceleration from the road surface friction coefficient and road slope. The permissible access speed calculator calculates a permissible access speed from the permissible lateral acceleration based on road geometry and the road surface friction coefficient. The equivalent linear distance calculator calculates an equivalent linear distance, converting a winding part of a road to the objective curve into an equivalent straight line. The passing judgement device compares a required deceleration, which is determined based on the present vehicle speed, the permissible access speed and the equivalent linear distance, with a warning deceleration level and a forced deceleration level, which are calculated from the standard deceleration. According to the comparison result, the warning deceleration controller carries out a warning control through the display and a loudspeaker and forced deceleration control by the engine control unit, the transmission control unit and the brake control unit.
    • 识别曲线几何形状,即使当到目标曲线的道路不是直线时,过高速度条件的判断精度也随着计算负荷的增加而增加。 标准减速度计算器根据路面摩擦系数和道路坡度计算标准减速度。 允许的进入速度计算器基于道路几何形状和路面摩擦系数从允许的横向加速度计算允许的进入速度。 等效线性距离计算器计算等效线性距离,将道路的绕组部分转换为目标曲线为等效直线。 通过判断装置将根据当前车速确定的所需减速度与允许的进入速度和等效线性距离进行比较,根据标准减速度计算出警告减速度和强制减速度。 根据比较结果,警告减速控制器通过显示器进行警告控制,并通过发动机控制单元,变速器控制单元和制动控制单元进行扬声器和强制减速控制。
    • 10. 发明授权
    • Device for a vehicle for estimating friction coefficient of a road surface
    • 用于估计路面摩擦系数的车辆的装置
    • US07058541B2
    • 2006-06-06
    • US10847657
    • 2004-05-18
    • Masaru KogureKoji MatsunoKatsufumi IchikawaTakayuki UshijimaYutaka Hiwatashi
    • Masaru KogureKoji MatsunoKatsufumi IchikawaTakayuki UshijimaYutaka Hiwatashi
    • G06F19/00
    • B60W40/068B60T8/172B60T2210/12
    • A correlation coefficient computing unit receives front-left and front-right wheel-accelerations from high-pass filters, each having a driver-operating component removed therefrom, and computes a correlation coefficient therebetween. A computing-unit of upper and lower limits of a correlation coefficient of a population sets upper and lower limits of a correlation coefficient of a population. First and second correction-gain setting units set first and second correction-gains varying in accordance with running and driving states, respectively. A correlation coefficient computing unit of a population computes a correlation coefficient of a population of this time based on the correlation coefficients computed as above, a correlation coefficient of a population of the previous time, the upper and lower limits, and the first and second correction-gains. A coefficient of friction on road surface estimating unit estimates a coefficient of friction on road surface by comparing the correlation coefficient of the population of this time with a determining threshold value previously set according to the running state.
    • 相关系数计算单元从高通滤波器接收前左和右前轮加速度,每个具有从其中去除的驱动器操作分量,并且计算它们之间的相关系数。 人口相关系数的上限和下限的计算单位设定人口相关系数的上限和下限。 第一和第二校正增益设置单元分别根据行驶状态和驾驶状态分别设定第一和第二校正增益。 群体的相关系数计算单元基于如上计算的相关系数,前一时间的群体的相关系数,上限和下限以及第一和第二校正来计算此时间的群体的相关系数 - 力 路面估计单元的摩擦系数通过将该时间的人口的相关系数与根据运行状态预先设定的判定阈值进行比较,来估计路面上的摩擦系数。