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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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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：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：US5292187A
公开(公告)日：1994-03-08
申请号：US991326
申请日：1992-12-16
申请人： Toru Onaka , Toshiaki Tsuyama
发明人： Toru Onaka , Toshiaki Tsuyama
IPC分类号： B60T8/1755 , B60T8/172 , B60T8/1761 , B60T8/1763 , B60T8/66 , B60T8/32
CPC分类号： B60T8/17636
摘要： A slip control system is so adapted as to start the control of the braking force from a state in which the braking force is reduced when a magnitude of deceleration of the wheel becomes equal to or larger than a predetermined value or when a slip value of the wheel becomes a value in the direction in which the wheel is likely to be locked and as to start the control of the braking force from a state in which the braking force is sustained when the deviation obtained by subtracting the wheel speed from the vehicle speed becomes equal to or larger than a predetermined value. This arrangement satisfies requirements for both preventing the wheel from being locked and shortening the braking distance.
摘要翻译： 滑动控制系统适于当车轮的减速度等于或大于预定值时，从制动力减小的状态开始制动力的控制，或者当滑动值 车轮成为车轮可能被锁定的方向上的值，并且当通过从车速减去车轮速度而获得的偏差变得变得为从制动力持续时的状态开始制动力的控制 等于或大于预定值。 这种布置满足了防止车轮被锁定并缩短制动距离的要求。
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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：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：US5148884A
公开(公告)日：1992-09-22
申请号：US678490
申请日：1991-04-01
IPC分类号： B60W10/04 , B60T8/175 , B60T8/48 , B60W10/06 , B60W10/10 , B60W10/18 , B60W10/188 , F02D29/02
摘要： A slip of the driven wheels is converged by causing the torque generated by the engine to be reduced and applying braking force when a slip of the driven wheel becomes large during accelerating. Control of the application of the braking force to the left-hand and right-hand driven wheels is made individually and separately from each other. When such an incident occurs as causing no normal control of decreasing the torque generated by the engine to be made, the contents of control of application of the braking force is changed so as to apply the same degrees of the braking force to both of the left-hand and right-hand driven wheels.
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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：US4933859A
公开(公告)日：1990-06-12
申请号：US263416
申请日：1988-10-27
IPC分类号： B60K31/00 , B60K31/04 , B60W30/00 , F02D29/00 , F02D29/02 , F02D45/00 , F16H59/18 , F16H61/00 , F16H61/02 , F16H63/40
CPC分类号： B60K31/047 , F16H2059/186 , F16H61/0213 , Y10T477/676
摘要： A constant-speed cruising control system for a vehicle having an automatic transmission includes a vehicle speed controller which controls the throttle valve of the engine on the basis of the difference between a target vehicle speed and the actual vehicle speed so that the latter approaches the former, a gear shifting mechanism which receives a gear shifting command and shifts the gear stage of the automatic transmission according to the content of the gear shifting command which it receives, and a gear-shifting controller which receives an engine load signal representing the load on the engine and a speed difference signal representing the difference between said target vehicle speed and the actual vehicle speed, and delivers to the gear shifting mechanism a gear shifting command which requires the gear shifting mechanism to shift the gear stage down either when the load on the engine is not lighter than a first preset value or when the load on the engine is lighter than the first preset value and heavier than a second preset value and at the same time the difference between the target vehicle speed and the actual vehicle speed is larger than a preset speed.
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