Vehicle traction control device
    11.
    发明授权
    Vehicle traction control device 失效
    车辆牵引力控制装置

    公开(公告)号:US4860847A

    公开(公告)日:1989-08-29

    申请号:US181954

    申请日:1988-04-15

    IPC分类号: B60K28/16

    CPC分类号: B60K28/16

    摘要: A vehicle traction control device includes an engine output controller for deactivating the combustion stroke of an engine in order to control the vehicle traction, a vehicle speed judgment circuit for judging whether or not a speed detected by a vehicle speed detector is lower than a preset speed, and an engine revolution-number judgment circuit for judging whether or not a value detected by an engine revolution-number detector exceeds a preset value, wherein the vehicle speed judgment circuit and the engine revolution-number judgment circuit are connected to the engine output controller so as to deactivate the engine combustion stroke when the vehicle speed is lower than the preset speed and the number of revolution of the engine exceeds the preset value. The vehicle traction control device further includes an excessive slip detector for detecting an excessive slip in a driving wheel which is driven by the engine, a vehicle speed index output circuit for outputting an index representative of the vehicle speed, and a combustion stroke deactivating period setting circuit for reducing the rate of a period of deactivating the engine combusion stroke per revolution of the engine, caused by the engine output controller, in accordance with the index, wherein the engine output controller operates also in response to detection of an excessive slip by the excessive slip detector. Thereby excessive slip in the vehicle driving wheels is controlled so that the traction for the vehicle is prevented from deteriorating.

    摘要翻译: 车辆牵引力控制装置包括用于停止发动机的燃烧冲程以便控制车辆牵引的发动机输出控制器,用于判断由车速检测器检测到的速度是否低于预设速度的车速判断电路 以及用于判断由发动机转数检测器检测到的值是否超过预设值的发动机转速判定电路,其中车速判断电路和发动机转数判断电路连接到发动机输出控制器 以便当车速低于预设速度并且发动机的转数超过预设值时停用发动机燃烧冲程。 车辆牵引力控制装置还包括用于检测由发动机驱动的驱动轮中的过度滑动的过度滑移检测器,用于输出表示车速的指标的车辆速度指标输出电路和燃烧冲程停止期间设定 电路,用于根据指标降低由发动机输出控制器引起的每转发动机的发动机组合冲程周期的速率,其中发动机输出控制器还响应于由于发动机输出控制器的过度滑动的检测而操作 过度滑移检测器 从而控制车辆驱动轮中的过度滑动,从而防止车辆的牵引力恶化。

    Method for controlling slip of a driving wheel of a vehicle
    12.
    发明授权
    Method for controlling slip of a driving wheel of a vehicle 失效
    用于控制车辆的驱动轮的滑动的方法

    公开(公告)号:US4778025A

    公开(公告)日:1988-10-18

    申请号:US59452

    申请日:1987-06-08

    IPC分类号: B60K28/16 F16H63/40

    摘要: A slip control method controls slip of the driving wheels of a vehicle. The method includes detecting excess slip of the driving wheels of the vehicle during acceleration, and reducing a driving force to said driving wheels upon detection of said excess slip in order to limit the slip of the driving wheels. The slip control of said driving wheels is inhibited upon detection of the application of a parking brake of the vehicle, or upon the detection of the transmission of the vehicle as being in the reverse gear position.

    摘要翻译: 滑动控制方法控制车辆的驱动轮的滑动。 该方法包括在加速期间检测车辆的驱动轮的过度滑动,并且在检测到所述多余滑动时减小对所述驱动轮的驱动力,以限制驱动轮的滑动。 在检测到车辆的驻车制动器的应用或者检测到处于倒档位置的车辆的变速器时,禁止所述驱动轮的滑动控制。

    Pneumatic tire pressure change detecting system comparing wheel speeds
and weighting detection based on running conditions
    14.
    发明授权
    Pneumatic tire pressure change detecting system comparing wheel speeds and weighting detection based on running conditions 失效
    气动轮胎压力变化检测系统根据运行条件比较轮速和加权检测

    公开(公告)号:US5513523A

    公开(公告)日:1996-05-07

    申请号:US308440

    申请日:1994-09-19

    IPC分类号: B60C23/06 G01M17/02 E01C23/02

    CPC分类号: B60C23/061

    摘要: A subtractor calculates an actual wheel speed difference between rotational speeds of left and right wheels on a motor vehicle, and a steering angle converter calculates an actual steering angle from the actual wheel speed difference. The difference between the actual steering angle and an adequate steering angle which is produced based on a lateral acceleration is compared with a predetermined reference range. If the difference between the actual and adequate steering angles exceeds the predetermined reference range, then the pneumatic pressure of a tire on one of the left and right wheels is determined as being lowered. In the steering angle converter, a weight value is established according to a running condition of the motor vehicle, and the calculated actual steering angle or comparative sensitivity is varied according to the weight value. Since the comparative sensitivity is varied according to the running condition, a reduction in the pneumatic pressure of the tire can be detected even under running conditions which lead to large errors.

    摘要翻译: 减法器计算机动车辆上左右轮的转速之间的实际车轮速度差,转向角转换器根据实际车轮速度差计算实际转向角。 将实际转向角与基于横向加速度产生的适当的转向角的差与预定的参考范围进行比较。 如果实际和足够的转向角之间的差超过预定的参考范围,则确定左轮和右车之一上的轮胎的气压降低。 在转向角转换器中,根据机动车辆的行驶状态建立重量值,并且根据重量值改变计算出的实际转向角度或比较灵敏度。 由于比较灵敏度根据运行条件而变化,因此即使在导致大的误差的运行条件下也能够检测出轮胎的气压降低。

    System for determining the fully-closed state of subsidiary throttle
valve
    15.
    发明授权
    System for determining the fully-closed state of subsidiary throttle valve 失效
    用于确定辅助节流阀完全关闭状态的系统

    公开(公告)号:US5562080A

    公开(公告)日:1996-10-08

    申请号:US301903

    申请日:1994-09-07

    摘要: A method for determining the fully-closed state of a subsidiary throttle valve. If a stable state judging circuit judges that there is no outside influence exerted on the operational state of the engine (a state in which the vehicle is stopped and the engine is in an idling state) even if the subsidiary throttle valve is fully closed, a valve closing circuit closes the subsidiary throttle valve and a fully-closed state determination is carried out. If the opening degree of the subsidiary throttle valve or the engine revolution number is largely varied during the determination process of the fully-closed state determination circuit, a valve-closing inhibiting circuit inhibits the closing of the subsidiary throttle valve to discontinue the determination. Even if all of the conditions for determination are satisfied again, the closing of the subsidiary throttle valve and the restarting of determination by the fully-closed state determination circuit are inhibited until the comparator circuit judges that the vehicle starts traveling and vehicle speed exceeds a reference value.

    摘要翻译: 一种用于确定辅助节流阀的完全关闭状态的方法。 如果稳定状态判断电路判断即使辅助节流阀完全关闭,也不会对发动机的运转状态(车辆停止,发动机处于怠速状态的状态)施加外部影响, 闭阀回路关闭辅助节流阀,并执行完全关闭状态确定。 如果在完全关闭状态判定电路的判定处理中,辅助节流阀的开度或发动机转数大幅度变化,则关闭禁止电路阻止副节流阀的关闭而停止判定。 即使再次满足判定条件,禁止辅助节流阀的关闭和全闭合状态判定电路的重新开始判定,直到比较电路判断车辆开始行驶,车速超过基准 值。

    Traction control device for vehicle
    16.
    发明授权
    Traction control device for vehicle 失效
    车辆牵引力控制装置

    公开(公告)号:US5458212A

    公开(公告)日:1995-10-17

    申请号:US301901

    申请日:1994-09-07

    CPC分类号: B60K28/16 F16H63/40

    摘要: In a traction control device in which an initial control torque of an engine is determined in accordance with an acceleration of the vehicle, when an excessive slipping of driven wheels is detected, a time taken for proceeding of the excessive slipping of the driven wheels from a large slip state to a small slip state is counted by a timer. If such time is smaller than a reference time and a gear ratio of the vehicle is of a first gear shift to provide a low vehicle speed, it is decided that the vehicle is traveling on an upward sloping road, and a lower limit value for defining the initial control torque of the engine determined in an initial control torque calculating means is corrected into an increased value in an initial torque correcting means. This prevents the initial control torque of the engine from being excessively reduced at the start of a traction control. By this construction, it is possible to prevent an initial control torque from being excessively reduced due to a misjudgment of a friction coefficient of a surface of an upward or downward sloping road to insure an acceleratability of a vehicle.

    摘要翻译: 在其中根据车辆的加速度确定发动机的初始控制扭矩的牵引力控制装置中,当检测到从动轮的过度滑动时,驱动轮的过度滑动所用的时间 计时器对大滑移状态进行小滑动状态计数。 如果这样的时间小于参考时间,并且车辆的变速比为第一档以提供低车速,则判定车辆在向上倾斜的道路上行驶,并且确定下限值 在初始转矩校正装置中将在初始控制扭矩计算装置中确定的发动机的初始控制扭矩校正为增加的值。 这防止在牵引力控制开始时发动机的初始控制扭矩过度减小。 通过这种结构,可以防止初始控制扭矩由于对向上或向下倾斜的道路的表面的摩擦系数的误判而被过度地减小,以确保车辆的加速性。

    Drive wheel slip control system for vehicle
    17.
    发明授权
    Drive wheel slip control system for vehicle 失效
    车轮滑轮控制系统

    公开(公告)号:US5172319A

    公开(公告)日:1992-12-15

    申请号:US611570

    申请日:1990-11-13

    IPC分类号: B60K28/16

    CPC分类号: B60K28/16

    摘要: In a control system wherein slippage of a vehicle drive wheel is detected and when the slip is excessively large, an engine output or drive wheel torque is reduced, there are provided means for calculating the grip force of the drive wheel and further means for changing the reduction amount of engine output or drive wheel torque, or the reduction speed, or the reduction characteristic dependent on a signal from the grip force calculating means. This enables a sporty travel of a vehicle.

    摘要翻译: 在检测到车辆驱动轮的滑动的控制系统中,当滑差过大时,发动机输出或驱动轮转矩减小,提供了用于计算驱动轮的夹紧力的装置, 发动机输出的减少量或驱动轮扭矩或减速速度,或依赖于来自抓地力计算装置的信号的减速特性。 这使得车辆的运动性旅行成为可能。

    Traction control system for controlling slip of a driving wheel of a
vehicle
    18.
    发明授权
    Traction control system for controlling slip of a driving wheel of a vehicle 失效
    用于控制车辆的驱动轮的滑动的牵引力控制系统

    公开(公告)号:US4873638A

    公开(公告)日:1989-10-10

    申请号:US48424

    申请日:1987-05-11

    IPC分类号: B60K28/16 F16H63/40

    摘要: A traction control system controls the slip of a driving wheel of a vehicle having at least two driving wheels. The traction control system includes a driving wheel speed sensor for sensing the speed of the driving wheels and for generating a driving wheel speed signal as a function thereof, a vehicle speed sensor for sensing the speed of the vehicle and for generating a vehicle speed signal as a function thereof, and a first selecting circuit, included within the driving wheel speed sensor and operatively connected to said vehicle speed sensor, for generating the driving wheel speed signal in response to the vehicle speed signal. The system also provides for a controller responsive to the driving wheel speed signal from the first selecting circuit for controlling the slip of the driving wheel.

    Vehicle traction control system
    19.
    发明授权
    Vehicle traction control system 失效
    车辆牵引力控制系统

    公开(公告)号:US5370199A

    公开(公告)日:1994-12-06

    申请号:US44066

    申请日:1993-04-06

    IPC分类号: F02D29/02 B60K28/14 B60K28/16

    CPC分类号: B60K28/14 B60K28/16

    摘要: In a traction control system for a vehicle which controls the traction of the driven wheels according to the slip ratio of the driven wheels obtained as a relationship between the vehicle speed and the speed of the driven wheels, the vehicle speed is obtained from the speed of the non-driven wheels. Normally, the average value of the speeds of the non-driven wheels is used as the basis for computing the vehicle speed, but when one of the non-driven wheels is likely to be lifted from the road surface due to the turning maneuver of the vehicle, the speed of one of the non-driven wheels which is higher than that of the other non-driven wheel and is therefore likely to be in contact with the road surface is used for fining the vehicle speed. Thus, the vehicle speed is simply obtained from the speed of the non-driven wheels, but the traction control can be reliably carried out according to a correctly obtained vehicle speed.

    摘要翻译: 在车辆的牵引力控制系统中,根据作为车速与从动轮的速度之间的关系获得的从动轮的滑移率来控制从动轮的牵引力,车速是从车速 非驱动轮。 通常,非驱动轮的速度的平均值被用作计算车速的基础,但是当其中一个非从动轮很可能由于转向机动而从路面抬起时 使用比其他非从动轮高的非从动轮之一的速度,因此很可能与路面接触的速度用于使车辆的速度细化。 因此,从非从动轮的速度简单地获得车速,但是可以根据正确获得的车速可靠地进行牵引力控制。

    Wheel pressure-reduction determining system for vehicle
    20.
    发明授权
    Wheel pressure-reduction determining system for vehicle 失效
    车轮减速决定系统

    公开(公告)号:US5866812A

    公开(公告)日:1999-02-02

    申请号:US729242

    申请日:1996-10-09

    IPC分类号: B60C23/00 B60C23/06 F02D29/02

    CPC分类号: B60C23/061

    摘要: A reduction in tire pressure in follower wheels and driven wheels is precisely determined irrespective of slipping states of the driven wheels through the use of apparatus wherein in a driven wheel slip amount calculating means M4 calculates a driven wheel slip amount KIDD as a left and right follower wheel speed difference FID and a left and right driven wheel speed difference RID; in a driven wheel torque calculating means M5, a driven wheel torque TQDW is calculated; in a driven wheel slip amount estimating means M6, a characteristic of variation in driven wheel slip amount KIDD relative to the variation in driven wheel torque TQDW is estimated using a least squares method; in a deviation calculating means M7, a deviation CKID between the follower wheel speed difference FID and the driven wheel speed difference RID in a state in which the driven wheels are not slipping, is calculated as an intercept of the driven wheel slip amount KIDD at a driven wheel torque equal to 0 (zero) in a graph of the variation characteristic; and in a wheel pressure-reduction determining means M8, a reduction in tire pressure is determined from a difference in diameter between the follower wheels and the driven wheels by comparing the deviation CKID with a reference value.

    摘要翻译: 随动轮和从动轮的轮胎压力的降低被精确地确定,而与通过使用装置的从动轮的滑动状态无关,其中在从动轮打滑量计算装置M4计算作为左右跟随器的从动轮滑移量KIDD 车轮速度差FID和左右驱动轮速差RID; 在从动轮转矩计算装置M5中,计算从动轮转矩TQDW; 在从动轮滑移量估计装置M6中,使用最小二乘法来估计从动轮滑动量KIDD相对于从动轮扭矩TQDW的变化的变化的特性; 在偏差计算装置M7中,计算在从动轮未滑动的状态下的从动轮速度差FID与从动轮速度差RID之间的偏差CKID作为从动轮滑移量KIDD的截距, 驱动轮转矩在变化特性曲线图中等于0(零); 并且在车轮压力降低确定装置M8中,通过将偏差CKID与参考值进行比较,根据从动轮和从动轮之间的直径差来确定轮胎压力的降低。