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    • 3. 发明授权
    • Circuit configuration for regulating the brake pressure build-up for a
brake system comprising an anti-locking control
    • 用于调节包括​​防抱死控制的制动系统的制动压力累积的电路配置
    • US5452947A
    • 1995-09-26
    • US142314
    • 1993-11-17
    • Norbert EhmerThomas Striegel
    • Norbert EhmerThomas Striegel
    • B60T8/58B60T8/00B60T8/172B60T8/174B60T8/1763B60T8/1764B60T8/32B60T8/64B60T8/84
    • B60T8/1764
    • A circuit configuration for a brake system comprising an anti-locking control is furnished with circuits which: (1) at a low friction coefficient on either vehicle side, individually control the brake pressure on the rear wheel brakes upon commencement of a control process, (2) after the first entrance of a rear wheel into a stable phase switch to "select-low", and (3) in the select-low control phased if during a predetermined period of time no instability occurs on the non-selected rear wheel, increase the brake pressure on the non-selected wheel in the next pressure build-up phase by a fixed or variable amount. According to a first embodiment, the brake pressure is delivered prematurely into a wheel brake of the rear wheel if the wheel speed falls below a slip threshold if, at the same time, the factual reacceleration is above a threshold value and if another value derived from the maximum value of the filtered wheel acceleration is exceeded.
    • PCT No.PCT / EP92 / 00319 Sec。 371日期:1993年11月17日 102(e)日期1993年11月17日PCT提交1992年2月14日PCT公布。 出版物WO92 / 20555 日期:1992年11月26日。包括防抱死控制的制动系统的电路结构配备有以下电路:(1)在任一车辆侧具有低摩擦系数,分别控制后轮制动器上的制动压力 开始控制过程,(2)在后轮进入稳定相位切换到“选择低”之后,和(3)在选择低控制阶段相位如果在预定时间段内不发生不稳定性 在未选择的后轮上,在下一个增压阶段中增加固定或可变量的未选择的车轮上的制动压力。 根据第一实施例,如果同时事实上的再加速度高于阈值,并且如果从另一个值得出的另一个值,则如果轮速降到滑差阈值以下,则制动压力被过早地输送到后轮的车轮制动器中 超过滤光轮加速度的最大值。
    • 6. 发明授权
    • Circuit configuration for controlling the braking pressure of a
slip-controlled brake system for all-wheel driven automotive vehicles
    • 用于控制用于全轮驱动的机动车辆的滑动控制制动系统的制动压力的电路配置
    • US4736994A
    • 1988-04-12
    • US914647
    • 1986-10-02
    • Helmut FennelHans WupperGunther BuschmannNorbert Ehmer
    • Helmut FennelHans WupperGunther BuschmannNorbert Ehmer
    • B60T8/172B60T8/1761B60T8/1763B60T8/1769B60T8/32B60T8/58B60T8/66B60T8/72
    • B60T8/58B60T8/17616B60T8/1769B60T8/322B60T2250/04
    • To control the braking pressure in the wheel brakes of a slip-controlled hydraulic brake system for automotive vehicles with all-wheel drive and with lockable or automatically locking differentials (2, 3), a circuit configuration is provided which influences the variation of the vehicle reference speed (v.sub.REF). This is to say, in the event of the wheel (v.sub.Rn) which is momentarily decisive for the formation of references becoming instable, the reference speed (v.sub.REF) will first be declined with a relatively flat gradient which corresponds to a vehicle deceleration at a low frictional coefficient. A decrease of the vehicle reference speed (v.sub.REF) with a very steep gradient will follow after a predetermined period of time (T.sub.1). This decrease is continued until the vehicle reference speed (v.sub.REF) reaches the decisive wheel speed again or falls thereunder. To avoid oscillations, the change-over of the reference (v.sub.REF) after the attainment of the wheel speed curves (v.sub.Rn) will not be effected until after a predetermined time of delay (T.sub.2 or T.sub.3).
    • 为了控制具有全轮驱动和可锁定或自动锁定差速器(2,3)的机动车辆的滑动控制液压制动系统的车轮制动器中的制动压力,提供了影响车辆变化的电路配置 参考速度(vREF)。 也就是说,如果轮对(vRn)对于形成基准变得不稳定而暂时具有决定性,则参考速度(vREF)首先将以相对平缓的梯度下降,这对应于低速下的车辆减速度 摩擦系数。 在预定时间段(T1)之后,将跟随具有非常陡梯度的车辆基准速度(vREF)的减小。 直到车辆参考速度(vREF)再次达到决定性车轮速度或下降为止,才会持续下降。 为了避免振荡,在达到车轮速度曲线(vRn)之后,直到经过预定的延迟时间(T2或T3)之后才会进行参考(vREF)的转换。
    • 7. 发明授权
    • Circuit configuration for a brake system having an anti-lock control
    • 具有防抱死控制的制动系统的电路配置
    • US5265947A
    • 1993-11-30
    • US730936
    • 1991-07-30
    • Hans WupperHelmut FennelGunther BuschmannIvica BatisticNorbert EhmerRobert Schmidt
    • Hans WupperHelmut FennelGunther BuschmannIvica BatisticNorbert EhmerRobert Schmidt
    • B60T8/58B60T8/174B60T8/1761B60T8/64B60T8/00
    • B60T8/17616Y10S303/04
    • The circuit configuration for a brake system having an anti-locking control generates pulse-type brake pressure control signals. For pressure rebuild-up after a pressure decrease, brake pressure is applied first at a steep and subsequently at a flatter gradient, this being achieved by a variable pulse (P1) and by short fixed pulses (P2) succeeding one another at a large interval. Circuits are provided rendering dependent the pulse and pulse break times (T.sub.1, T.sub.2, T.sub.k) determining the pressure build-upon the duration of the pressure build-up (T.sub.1) during the steep-rise build-up in the preceding cycle,on the duration (T.sub.1 +nT.sub.2) of the entire pressure build-up in the preceding cycle, andon the duration (T.sub.o) of the preceding pressure decrease, with the pulse times being so dimensionedthat, at a constant coefficient of friction and at a constant static pressure, the locking limit of the wheel is rereached after a predetermined period of time or after a predetermined pulse number. The duration of the variable and of the fixed pressure build-up pulses is computed from the pressure build-up of the preceding pressure or determined from a stored Table.
    • PCT No.PCT / EP90 / 00046 Sec。 371日期1991年7月30日 102(e)1991年7月30日PCT PCT 1990年1月10日PCT公布。 WO90 / 08681 PCT出版物 1990年8月9日。具有防抱死控制的制动系统的电路结构产生脉冲式制动压力控制信号。 对于压力降低后的压力重建,制动压力首先以陡峭的方式施加,然后以较平坦的梯度施加,这是通过可变的脉冲(P1)和短的固定脉冲(P2)以大的间隔彼此相继地实现的 。 电路提供依赖于脉冲和脉冲中断时间(T1,T2,Tk),确定在前一周期陡峭崛起期间压力累积(T1)持续时间内的压力增加, 在前一循环中的整个压力累积的持续时间(T1 + nT2)以及先前压力的持续时间(To)减小,脉冲时间被确定为在恒定的摩擦系数和 恒定的静压力,在预定的时间段之后或者在预定的脉冲数之后重新开始车轮的锁定极限。 变量和固定压力累积脉冲的持续时间是根据先前压力的压力积分计算的,或者由存储的表确定。
    • 9. 发明授权
    • Method and apparatus for detecting a defective pressure switch
    • 用于检测有缺陷的压力开关的方法和装置
    • US06474149B1
    • 2002-11-05
    • US09180165
    • 1999-03-01
    • Norbert EhmerThomas ProgerMarkus Zenzen
    • Norbert EhmerThomas ProgerMarkus Zenzen
    • G01L528
    • B60T17/22B60T8/885B60T2270/403B60T2270/415
    • The invention provides a method of detecting a defective condition on a pressure switch arrangement which at least assumes a defective condition on the said pressure switch assembly whenever a signal arrives at an input of an electronic computing unit which cannot be associated either to the opened or to the closed condition of the pressure switch. Moreover, a defective condition on the pressure switch arrangement mounted in the brake system of a vehicle is assumed, once the pressure switch signal refers to an actuated brake although the vehicle is significantly accelerated. Conversely, a defective condition is also assumed if the vehicle significantly decelerates although the pressure switch signal refers to a lack of brake pressure. Also, an appropriate pressure switch arrangement is provided which, with the pressure switch closed, generates a rectangular signal and, with the pressure switch opened, generates a high level on the input II of an electronic computing unit. With an incoming low level, an error on the pressure switch arrangement is assumed.
    • 本发明提供了一种在压力开关装置上检测缺陷状态的方法,该方法至少在所述压力开关组件上假定有缺陷状态,只要信号到达电子计算单元的输入,该电子计算单元的输入不能与打开的或不相关 压力开关的关闭状态。 此外,假设一旦安装在车辆的制动系统中的压力开关装置的缺陷状况,一旦压力开关信号是指致动的制动器,尽管车辆被显着加速。 相反,尽管压力开关信号指的是制动压力不足,但如果车辆显着减速,则也假定有缺陷的状况。 此外,提供了一种适当的压力开关装置,其中压力开关闭合,产生矩形信号,并且随着压力开关打开,在电子计算单元的输入II上产生高电平。 在进入低电平时,假定压力开关装置出现错误。