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公开(公告)号：US5210690A
公开(公告)日：1993-05-11
申请号：US682086
申请日：1991-04-09
申请人： Fumio Kageyama , Haruki Okazaki , Toru Onaka , Toshiaki Tsuyama
发明人： Fumio Kageyama , Haruki Okazaki , Toru Onaka , Toshiaki Tsuyama
IPC分类号： B60T8/58 , B60T8/172 , B60T8/1763 , B60T8/1764 , B60T8/66
CPC分类号： B60T8/1764
摘要： A first estimated vehicle speed is calculated on the basis of the highest of the speeds of the wheels and the deceleration of the vehicle. A second estimated vehicle speed which begins to reduce from a predetermined value at a predetermined rate independent from the change in the highest of the speeds of the wheels from the time the first estimated vehicle speed falls to the predetermined value is calculated. A slip ratio of each wheel is calculated on the basis of the first estimated vehicle speed when the first estimated vehicle speed is not lower than the predetermined value and on the basis of the second estimated vehicle speed when the first estimated vehicle speed is lower than the predetermined value. The braking force applied to each wheel is controlled so that the slip ratio of the wheel converges on a target slip ratio.
摘要翻译： 基于车轮的最高速度和车辆的减速度来计算第一估计车速。 计算从第一估计车速下降到规定值以来，以与车轮速度最高的变化无关的预定速度从预定值开始减速的第二估计车速。 当第一估计车速不低于预定值时，基于第一估计车速计算每个车轮的滑移比，并且基于第一估计车速低于第一估计车速时的第二估计车速 预定值。 控制施加到每个车轮的制动力，使得车轮的滑移比以目标滑移比收敛。
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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：US5176444A
公开(公告)日：1993-01-05
申请号：US711862
申请日：1991-06-07
申请人： Fumio Kageyama , Haruki Okazaki , Toru Onaka , Toshiaki Tsuyama
发明人： Fumio Kageyama , Haruki Okazaki , Toru Onaka , Toshiaki Tsuyama
IPC分类号： B60T8/66 , B60T8/1761 , B60T8/58 , B60T8/68
CPC分类号： B60T8/17616
摘要： A braking force control system controls the brake fluid pressure applied to the wheel during braking when each of the wheels of the vehicle tends to lock so that the slip ratio of the wheel converges on a target slip ratio. The brake fluid pressure is once fixed at the beginning of the braking force control, and when the slip ratio falls below the target slip ratio by fixing the brake fluid pressure, the brake fluid pressure is increased at a first rate, and when the slip ratio does not increase to a predetermined slip ratio in a predetermined time after the slip ratio falls below the target slip ratio or when the rate of increase of the slip ratio after the slip ratio falls below the target slip ratio is lower than a predetermined rate, the brake fluid pressure is increased at a second rate which is higher than the first rate.
摘要翻译： 制动力控制系统控制制动期间施加到车轮的制动液压力，当车辆的每个车轮趋于锁定时，使得车轮的滑移比收敛于目标滑移比。 在制动力控制开始时制动液压一度固定，通过固定制动液压力使滑移比下降到目标滑移比以下时，制动液压力以第一速度增加，当滑动比 在滑移率低于目标滑移率之后的预定时间内，或者当滑移率落在目标滑移率之后的滑移率的增加率低于预定速率时，不会增加到预定的滑移率， 制动液压力以比第一速率高的第二速率增加。
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公开(公告)号：US5047940A
公开(公告)日：1991-09-10
申请号：US362869
申请日：1989-06-07
申请人： Toru Onaka , Toshiaki Tsuyama , Kazutoshi Nobumoto , Fumio Kageyama , Akira Sone , Makoto Teshima
发明人： Toru Onaka , Toshiaki Tsuyama , Kazutoshi Nobumoto , Fumio Kageyama , Akira Sone , Makoto Teshima
IPC分类号： B60K28/16 , B60T8/175 , B60T8/48 , F16H59/08 , F16H59/50 , F16H61/00 , F16H61/02 , F16H61/16
CPC分类号： B60K28/165 , B60T8/175 , B60T8/48 , F16H61/0213 , F16H2059/082 , F16H2059/506 , F16H2061/0096 , F16H61/16
摘要： Slip control is carried out so as to reduce torque applied to the driven wheels by reducing torque generated by the engine when a slip value against the driven wheels on pavement is larger than a predetermined value. A shift characteristic of the automatic transmission interposed between the engine and the driven wheels is set as a first shift characteristic which is a basic characteristic at the time of ordinary running where no slip control is carried out and as a second shift characteristic set so as to become at least unlikely to cause downshifting during slip control compared with said first shift characteristic. As the slip control terminates, a return of the first shift characteristic is prohibited when the torque generated by the engine is large (for example, when a degree of operation of an accelerator is not zero) or when downshifting is caused if based on the first shift characteristics.
摘要翻译： 执行滑动控制，以便当在路面上的从动轮的滑移值大于预定值时，通过减小由发动机产生的扭矩来减小施加到从动轮的扭矩。 插入在发动机和从动轮之间的自动变速器的换档特性被设定为作为不进行滑差控制的普通行驶时的基本特性的第一变速特性，作为第二变速特性， 与所述第一偏移特性相比，在滑动控制期间变得至少不太可能导致降档。 当滑动控制终止时，当发动机产生的扭矩大时（例如，当加速器的操作程度不为零时）或当基于第一换档特性而产生降档时，禁止返回第一换档特性 移位特征。
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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：US5295552A
公开(公告)日：1994-03-22
申请号：US40962
申请日：1993-03-31
IPC分类号： B60T8/175 , B60T8/1763 , B60T8/1764 , B60T8/32 , B60K28/16
CPC分类号： B60T8/17636 , B60T8/175 , B60T8/1764
摘要： A slip control system for a motor vehicle controls respective braking forces in right and left driving wheels and controls an engine output by controlling a throttle opening of a throttle valve so that a slip value of the driven wheel becomes less than a target slip value. The system includes a device providing a basic control amount of the throttle opening based on the slip value of the driven wheel and the target slip value, a device for detecting respective brake fluid pressures in the right and left driven wheels, a device for converting the detected brake fluid pressure into an engine output, a device for providing a correction control amount of the throttle opening by subtracting an amount of the throttle opening corresponding to the converted engine output from the basic control amount of the throttle opening, and a device for driving the throttle valve by the basic control amount of the throttle opening when the brake fluid pressures in the right and left driven wheels are increased or increased rapidly, and driving the throttle valve by the correction control amount of the throttle opening when the brake fluid pressures in the right and left driven wheels are not increased or increased rapidly.
摘要翻译： 用于机动车辆的滑动控制系统控制右驱动轮和左驱动轮中的相应制动力，并且通过控制节流阀的节气门开度来控制发动机输出，使得从动轮的滑移值变得小于目标滑移值。 该系统包括基于从动轮的滑移值和目标滑移值提供节气门开度的基本控制量的装置，用于检测左右从动轮中的各制动液压力的装置， 检测到制动液压到发动机输出中的装置，用于通过从节气门开度的基本控制量减去与转换的发动机输出相对应的节气门开度的量来提供节气门开度的校正控制量的装置和用于驱动的装置 当左右从动轮中的制动液压力急剧上升或增加时，通过节气门开度的基本控制量来控制节流阀，当制动液压力为 右和左驱动轮不会迅速增加或增加。
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公开(公告)号：US5159991A
公开(公告)日：1992-11-03
申请号：US665191
申请日：1991-03-05
IPC分类号： B60T8/58 , B60T8/172 , B60T8/175 , B60T8/1763
CPC分类号： B60T8/175 , B60T2270/206 , B60T2270/208
摘要： In performing slip control such as traction control or ABS control, a control degree for slip control is changed in accordance with a temperature of outside air, or outside air temperature. The slip control system enhances response to slip control on a road surface having a lower road surface friction coefficient .mu., or a slippery road, and prevent a frequent execution of slip control on a road surface having a higher road surface friction coefficient .mu., by appropriating the setting of the road surface friction coefficient .mu. in accordance with the outside air temperature. A mode of changing the control degree for slip control includes, for example, a change of the condition for starting slip control, a change of a target value for slip control, and a change of an initial value of the road surface friction coefficient .mu., in accordance with the outside air temperature.
摘要翻译： 在执行牵引力控制或ABS控制等滑动控制时，滑移控制的控制度根据外部空气的温度或室外空气温度而变化。 滑移控制系统增强了对具有较低路面摩擦系数μ或光滑道路的路面上的滑移控制的响应，并且通过适当地控制在具有较高路面摩擦系数μ的路面上频繁地执行滑移控制 根据室外空气温度设定路面摩擦系数μ。 改变滑差控制的控制度的方式例如包括开始滑差控制的条件的变化，滑移控制的目标值的变化以及路面摩擦系数μ的初始值的变化， 按照外界气温。
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公开(公告)号：US5329453A
公开(公告)日：1994-07-12
申请号：US719958
申请日：1991-06-24
摘要： The braking force to the driven wheels is subjected to feedback control so as to allow the actual slip value of the driven wheels to agree with a predetermined target value for controlling the brake. The control amount for the feedback control is determined by differentiation control. The feedback control amount contains a first control amount corresponding to a predetermined basic travelling state and a second control amount corresponding to a particular travelling state. In ordinary travelling state, the braking force is controlled by the first control amount, and the braking force is controlled by the second control amount when the automotive vehicle is travelling in such a particular state. When the the vehicle is travelling on a bad road, the second control amount is set so as to loosen the braking force, as compared with the first control amount. Alternatively, when the vehicle is cornering, the second control amount is set as to tighten the braking force as compared with the first control amount.
摘要翻译： 对从动轮的制动力进行反馈控制，以使得从动轮的实际滑移值与用于控制制动器的预定目标值一致。 反馈控制的控制量由微分控制决定。 反馈控制量包含对应于预定基本行驶状态的第一控制量和对应于特定行驶状态的第二控制量。 在普通行驶状态下，制动力由第一控制量控制，并且当机动车辆在这样的特定状态下行驶时，通过第二控制量来控制制动力。 当车辆在恶劣道路上行驶时，与第一控制量相比，设定第二控制量以使制动力松动。 或者，当车辆转弯时，将第二控制量设定为与第一控制量相比紧固制动力。
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