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公开(公告)号：US5117934A
公开(公告)日：1992-06-02
申请号：US673460
申请日：1991-03-22
申请人： Toshiaki Tsuyama , Kazutoshi Nobumoto , Kaoru Sotoyama , Toru Onaka , Fumio Kageyama , Haruki Okazaki , Makoto Kawamura
发明人： Toshiaki Tsuyama , Kazutoshi Nobumoto , Kaoru Sotoyama , Toru Onaka , Fumio Kageyama , Haruki Okazaki , Makoto Kawamura
CPC分类号： B60T8/172 , B60T8/175 , B60T2210/14
摘要： In a slip control system for a vehicle a slip ratio of driving wheels of the vehicle is detected, and the slip of the driving wheels is controlled to converge on a predetermined target slip ratio when the slip ratio of the driving wheels exceeds a predetermined threshold slip ratio. When the vehicle is running a rough road, the threshold slip ratio is increased. The running condition of the vehicle is detected and increase of the threshold slip ratio is inhibited depending on the running condition of the vehicle.
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公开(公告)号：US5193888A
公开(公告)日：1993-03-16
申请号：US658753
申请日：1991-02-21
IPC分类号： B60T8/175 , B60T8/1761 , B60T8/48 , B60T8/58
摘要： A slip control system for a motor vehicle controls slippage of driving wheels and includes, a sensor for detecting a slip ratio of each driving wheel, a device for detecting a reduction in speed of each wheel, and a traction control system for decreasing a slip of each driving wheel by controlling brake fluid pressure in each driving wheel so that the slip ratio of each driving wheel is at least equal to a predetermined desired slip ratio when the slip ratio of each driving wheel becomes equal to the desired slip ratio. The system further includes an antiskid brake system for controlling brake fluid pressure, based on the reduction speed of each wheel, so as to cancel a lock condition of the wheel. The antiskid brake system has a first control device for controlling the brake pressure fluid in a condition in which a traction control operation is not carried out by the traction control system, and a second control device for controlling the brake pressure fluid in a condition in which a traction control operation is carried out by the traction control system.
摘要翻译： 用于机动车辆的滑动控制系统控制驱动轮的滑动，并且包括用于检测每个驱动轮的滑移率的传感器，用于检测每个车轮的速度降低的装置，以及用于减少滑动的牵引力控制系统 每个驱动轮通过控制每个驱动轮中的制动液压力使得当每个驱动轮的滑移比变得等于期望的滑移率时，每个驱动轮的滑移比至少等于预定的期望滑移率。 该系统还包括用于基于每个车轮的减速度控制制动液压力的防滑制动系统，以消除车轮的锁定状态。 防滑制动系统具有第一控制装置，用于在牵引控制系统不执行牵引控制操作的状态下控制制动压力流体;以及第二控制装置，用于在下述情况下控制制动压力流体： 牵引力控制系统由牵引力控制系统进行。
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公开(公告)号：US5297662A
公开(公告)日：1994-03-29
申请号：US718638
申请日：1991-06-21
CPC分类号： B60K28/16 , Y10T477/814 , Y10T477/816
摘要： A traction control system for a vehicle has a sub-throttle valve provided in an intake passage of the engine in series to a main throttle valve which is operatively connected to an accelerator pedal to open and close in response to operation of the accelerator pedal. An engine output controller controls opening of the sub-throttle valve to control the output of the engine so that the slip value of the driving wheels converges on a target slip value. The engine output controller once moves the sub-throttle valve to an initial opening when the slip value of the driving wheels exceeds the target slip value and then controls the opening of the sub-throttle valve to control the output of the engine so that the slip value of the driving wheels converges on a target slip value. The initial opening is set to be a fixed value when the opening of the main throttle valve is not larger than a predetermined opening and to be substantially equal to the opening of the main throttle valve when the opening of the main throttle valve is larger than the predetermined opening. The fixed value is not smaller than the predetermined opening of the main throttle valve.
摘要翻译： 用于车辆的牵引力控制系统具有设置在发动机的进气通道中的副节气门，其与主节流阀串联，该节气门可操作地连接到加速踏板以响应于加速器踏板的操作而打开和关闭。 发动机输出控制器控制副节流阀的打开以控制发动机的输出，使得驱动轮的滑移值收敛于目标滑移值。 当驱动轮的滑移值超过目标滑移值时，发动机输出控制器一次将副节流阀移动到初始开度，然后控制副节流阀的打开以控制发动机的输出，使得滑差 驱动轮的值收敛于目标滑移值。 当主节流阀的开度不大于预定开度时，将初始开度设定为固定值，并且当主节流阀的开度大于主节流阀的开度时，初始开度基本上等于主节流阀的开度 预定开口。 固定值不小于主节流阀的预定开度。
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公开(公告)号：US5320422A
公开(公告)日：1994-06-14
申请号：US118088
申请日：1993-09-07
IPC分类号： B60W10/04 , B60K28/16 , B60T8/172 , B60T8/175 , B60T8/1763 , B60W10/06 , B60W10/18 , B60W10/184 , F02D29/02 , F02D41/22 , F02D45/00 , B60T8/58
CPC分类号： B60K28/16 , B60T8/175 , B60W2710/0605
摘要： A slip control device includes a slip detecting device for detecting a slip rate of a drive wheel, an engine control device for reducing an engine output when the slip rate exceeds a first threshold value, and a brake control device for applying a brake force on the drive wheel when the slip rate exceeds a second threshold value. A frictional coefficient detecting device detects a frictional coefficient of a road, on which the vehicle is running, and a threshold determining device provides the first and second threshold values in accordance with the frictional coefficient. The engine output control and brake force control can be effectively utilized for the slip control in the traction control.
摘要翻译： 滑动控制装置包括用于检测驱动轮的滑移率的滑移检测装置，当滑移率超过第一阈值时用于减小发动机输出的发动机控制装置，以及用于在所述滑动速度下施加制动力的制动控制装置 当滑移率超过第二阈值时，驱动轮。 摩擦系数检测装置检测车辆行驶的道路的摩擦系数，阈值判定装置根据摩擦系数提供第一和第二阈值。 发动机输出控制和制动力控制可以有效地用于牵引力控制中的滑差控制。
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公开(公告)号：US5072995A
公开(公告)日：1991-12-17
申请号：US604442
申请日：1990-10-29
CPC分类号： B60T8/4809 , B60T8/175
摘要： A slip control mechanism of a car has a hydraulic booster for driving a master cylinder for providing hydraulic pressure to a first brake provided for each driven wheel, a second brake provided for each driving wheel, a slip detection device for detecting the slip of driving wheels, a slip control device for operating the second brake, based on signals from the slip detecting device, by using the operating oil of the hydraulic booster as operating oil of the second brake so as to reduce the slip of the driving wheels, the control device comprising a pressure control valve for controlling hydraulic pressure of the operating oil of the second brake, including a pressure reducing valve for reducing the hydraulic pressure of the operating oil of the second brake, detection device for detecting completion of the slip control by the operation of the second brake, and a release device for opening the pressure reducing valve for a predetermined time so as to release the operating oil of the second brake on the occasion of the completion of the slip control by the operation of the second brake.
摘要翻译： 汽车的滑动控制机构具有用于驱动主缸的液压助力器，用于为每个从动轮提供的第一制动器提供液压，为每个驱动轮设置第二制动器，用于检测驱动轮滑动的滑动检测装置 根据来自滑动检测装置的信号，通过使用液压助力器的工作油作为第二制动器的工作油来操作第二制动器的滑动控制装置，以减少驱动轮的滑动，控制装置 包括用于控制第二制动器的工作油的液压的压力控制阀，包括用于降低第二制动器的工作油的液压的减压阀，用于检测通过操作的操作完成滑差控制的检测装置 第二制动器和用于打开减压阀预定时间的释放装置，以释放该操作油的操作油 通过第二制动器的操作来完成滑动控制的情况下的制动。
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公开(公告)号：US5584541A
公开(公告)日：1996-12-17
申请号：US336212
申请日：1994-11-03
申请人： Akira Sone , Toshiaki Tsuyama , Kazutoshi Nobumoto , Fumio Kageyama , Haruki Okazaki , Makoto Kawamura
发明人： Akira Sone , Toshiaki Tsuyama , Kazutoshi Nobumoto , Fumio Kageyama , Haruki Okazaki , Makoto Kawamura
CPC分类号： B60T8/175
摘要： A slip control system for a motor vehicle controls slippage of driving wheels and includes a sensor for detecting a slip ratio of each driving wheel, a device for decreasing slip of each driving wheel by controlling a driving force transmitted to the driving wheel so that the slip ratio of the driving wheel is at least equal to a predetermined desired slip ratio when the slip ratio of the driving wheel is equal to the desired slip ratio, a sensor for detecting a yawing rate of the vehicle, and a sensor for detecting a steering amount of the vehicle. The slip decreasing device includes a correcting device for decreasing the desired slip ratio when a steering condition is detected based on amounts detected by both the yawing rate detecting sensor and the steering amount detecting sensor.
摘要翻译： 用于机动车辆的滑动控制系统控制驱动轮的滑动，并且包括用于检测每个驱动轮的滑移率的传感器，通过控制传递到驱动轮的驱动力来减小每个驱动轮的滑动的装置，使得滑动 当驱动轮的滑移比等于期望的滑移率时，驱动轮的比例至少等于预定的期望滑移率，用于检测车辆的偏航率的传感器和用于检测转向量的传感器 的车辆。 滑移减小装置包括校正装置，用于根据由偏航速度检测传感器和转向量检测传感器检测到的量来检测转向条件时减小所需的滑移率。
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公开(公告)号：US5263548A
公开(公告)日：1993-11-23
申请号：US867832
申请日：1992-04-14
申请人： Toshiaki Tsuyama , Kazutoshi Nobumoto , Kaoru Sotoyama , Makoto Kawamura , Fumio Kageyama , Haruki Okazaki
发明人： Toshiaki Tsuyama , Kazutoshi Nobumoto , Kaoru Sotoyama , Makoto Kawamura , Fumio Kageyama , Haruki Okazaki
CPC分类号： B60K28/16 , B60T8/175 , B60W2550/148
摘要： A slip control system for a vehicle having a differential which distributes engine output to left and right driving wheels suppresses the engine output when the slip of at least one of the driving wheels exceeds a first threshold value. Slips of the left and right driving wheels are periodically detected, and a spin pattern of the driving wheels is periodically determined on the basis of the slips of the left and right driving wheels. Whether the vehicle is running on a split surface road, where the parts of the road surface in contact with the left and right driving wheels have different friction coefficients, is determined on the basis of the present spin pattern and the preceding spin pattern according to a predetermined split surface determining rule. When it is determined that the vehicle is running on a split surface road, the first threshold value is increased.
摘要翻译： 用于具有将发动机输出分配给左右驱动轮的差速器的车辆的滑动控制系统在至少一个驱动轮的滑移超过第一阈值时抑制发动机输出。 周期性地检测左右驱动轮的滑动，并且基于左右驱动轮的滑移周期性地确定驱动轮的旋转图案。 基于当前的自旋图案和前一个旋转图案，根据一个或多个旋转图案来确定车辆是否在分开的表面道路上行驶，其中与左右驱动轮接触的路面的部分具有不同的摩擦系数 预定分割面确定规则。 当确定车辆在分裂面道路上行驶时，第一阈值增加。
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公开(公告)号：US5340204A
公开(公告)日：1994-08-23
申请号：US137385
申请日：1993-10-18
CPC分类号： B60T8/175
摘要： A slip control system for a vehicle having rear right and left drive wheels includes a traction control for controlling a slip rate of a wheel by controlling a braking hydraulic pressure for the wheel under a non-braking condition. The slip rate of a wheel is controlled, by controlling the braking hydraulic pressure for the wheel under a braking condition, so as to provide an anti-skid control. A start of the control of the slip rate is restricted by the anti-skid control. The control of the slip rate by the anti-skid control is applied commonly to the right and left drive wheels, while the control of the slip rate by the traction control is applied independently to the right and left drive wheels. The anti-skid control can be always properly carried out without being affected by the traction control.
摘要翻译： 用于具有后左右驱动轮的车辆的滑动控制系统包括用于通过在非制动条件下控制车轮的制动液压来控制车轮的滑动速度的牵引控制。 通过在制动条件下控制车轮的制动液压来控制车轮的滑移率，从而提供防滑控制。 滑移率的控制开始受到防滑控制的限制。 通过防滑控制的滑移率的控制通常适用于左右驱动轮，而通过牵引力控制的滑移率的控制独立地应用于左右驱动轮。 防滑控制可以始终正确执行，而不受牵引力控制的影响。
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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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