-
公开(公告)号：US5314050A
公开(公告)日：1994-05-24
申请号：US987772
申请日：1992-12-09
申请人： James Slicker , Joseph S. Mazur , Michael T. Breen
发明人： James Slicker , Joseph S. Mazur , Michael T. Breen
CPC分类号： B60W10/06 , B60W10/02 , B60W10/04 , B60W30/18 , B60W30/1819 , F16D48/066 , B60W2510/0638 , B60W2510/0652 , B60W2540/10 , B60W2710/0605 , B60W2710/0644 , F16D2500/10412 , F16D2500/1045 , F16D2500/30406 , F16D2500/3067 , F16D2500/30816 , F16D2500/31433 , F16D2500/3144 , F16D2500/31453 , F16D2500/50212 , F16D2500/50224 , F16D2500/50858 , F16D2500/7041 , Y10T477/743 , Y10T477/753 , Y10T477/755 , Y10T477/78 , Y10T477/79
摘要： A friction clutch coupling an engine and a gear transmission of a vehicle is controlled by a microprocessor based circuit using logic which defines operating modes according to engine and clutch conditions. During the time of clutch closure, when the vehicle is starting from rest in a startup or launch mode, the throttle or other engine control signal is restrained from quickly responding to the accelerator pedal. This avoids engine overspeeding which results from generating high torque before sufficient clutch capacity has been achieved. The control signal is developed as a function of the pedal position under control of throttle logic which, in turn, is dependent on clutch operating modes defined by the clutch logic. The clutch operating modes are four modes for automatic clutch operation comprising touch point approach mode which prohibits a throttle signal during initial clutch movement, creep mode or startup mode after touch point occurs, and lockup mode for completing clutch closing when low clutch slip is attained. A non-automatic mode is entered before the accelerator pedal is depressed or when engine stall conditions are detected.
摘要翻译： 耦合发动机和车辆的齿轮传动装置的摩擦离合器由基于微处理器的电路控制，该电路使用根据发动机和离合器条件限定操作模式的逻辑。 在离合器关闭期间，当车辆在启动或启动模式下停止时，节气门或其他发动机控制信号被抑制以快速响应加速器踏板。 这避免了在实现足够的离合器容量之前产生高扭矩而引起的发动机超速。 在油门逻辑的控制下，控制信号作为踏板位置的函数展开，进而依赖于由离合器逻辑限定的离合器操作模式。 离合器操作模式是用于自动离合器操作的四种模式，包括接触点接近模式，其在初始离合器移动期间禁止油门信号，触摸点发生时的蠕变模式或启动模式，以及在获得低离合器打滑时完成离合器关闭的锁定模式。 在加速踏板被按下之前或当检测到发动机停转条件时，进入非自动模式。
-
公开(公告)号：US5378211A
公开(公告)日：1995-01-03
申请号：US181790
申请日：1994-01-18
申请人： James Slicker , Joseph S. Mazur , Michael T. Breen
发明人： James Slicker , Joseph S. Mazur , Michael T. Breen
CPC分类号： B60W10/06 , B60W10/02 , B60W10/04 , B60W30/18 , B60W30/1819 , F16D48/066 , B60W2510/0638 , B60W2510/0652 , B60W2540/10 , B60W2710/0605 , B60W2710/0644 , F16D2500/10412 , F16D2500/1045 , F16D2500/30406 , F16D2500/3067 , F16D2500/30816 , F16D2500/31433 , F16D2500/3144 , F16D2500/31453 , F16D2500/50212 , F16D2500/50224 , F16D2500/50858 , F16D2500/7041 , Y10T477/743 , Y10T477/753 , Y10T477/755 , Y10T477/78 , Y10T477/79
摘要： A friction clutch coupling an engine and a gear transmission of a vehicle is controlled by a microprocessor based circuit using logic which defines operating modes according to engine and clutch conditions. During the time of clutch closure, when the vehicle is starting from rest in a startup or launch mode, the throttle or other engine control signal is restrained from quickly responding to the accelerator pedal. This avoids engine overspeeding which results from generating high torque before sufficient clutch capacity has been achieved. The control signal is developed as a function of the pedal position under control of throttle logic which, in turn, is dependent on clutch operating modes defined by the clutch logic. The clutch operating modes are four modes for automatic clutch operation comprising touch point approach mode which prohibits a throttle signal during initial clutch movement, creep mode or startup mode after touch point occurs, and lockup mode for completing clutch closing when low clutch slip is attained. A non-automatic mode is entered before the accelerator pedal is depressed or when engine stall conditions are detected.
摘要翻译： 耦合发动机和车辆的齿轮传动装置的摩擦离合器由基于微处理器的电路控制，该电路使用根据发动机和离合器条件限定操作模式的逻辑。 在离合器关闭期间，当车辆在启动或启动模式下停止时，节气门或其他发动机控制信号被抑制以快速响应加速器踏板。 这避免了在实现足够的离合器容量之前产生高扭矩而引起的发动机超速。 在油门逻辑的控制下，控制信号作为踏板位置的函数展开，进而依赖于由离合器逻辑限定的离合器操作模式。 离合器操作模式是用于自动离合器操作的四种模式，包括接触点接近模式，其在初始离合器移动期间禁止油门信号，触摸点发生时的蠕变模式或启动模式，以及在获得低离合器打滑时完成离合器关闭的锁定模式。 在加速踏板被按下之前或当检测到发动机停转条件时，进入非自动模式。
-
公开(公告)号：US5316116A
公开(公告)日：1994-05-31
申请号：US987797
申请日：1992-12-09
申请人： James Slicker , Joseph S. Mazur , Michael T. Breen
发明人： James Slicker , Joseph S. Mazur , Michael T. Breen
IPC分类号： B60W10/02 , B60W10/04 , B60W10/06 , B60W30/18 , F02B61/00 , F02D9/02 , F02D11/10 , F02D29/00 , F02D45/00 , F16D27/00 , F16D43/00 , B60K41/02
CPC分类号： B60W10/06 , B60W10/02 , B60W10/04 , B60W30/18 , B60W30/1819 , B60W2510/0638 , B60W2510/1015 , B60W2540/10 , Y10T477/6407 , Y10T477/79
摘要： A friction clutch coupling an engine and a gear transmission of a vehicle is controlled by a microprocessor based circuit using logic which defines operating modes according to engine and clutch conditions. During the time of clutch closure, when the vehicle is starting from rest in a startup or launch mode, the throttle or other engine control signal is restrained from quickly responding to the accelerator pedal. This avoids engine overspeeding which results from generating high torque before sufficient clutch capacity has been achieved. The control signal is developed as a function of the pedal position under control of throttle logic which, in turn, is dependent on clutch operating modes defined by the clutch logic. The clutch operating modes are four modes for automatic clutch operation comprising touch point approach mode which prohibits a throttle signal during initial clutch movement, creep mode or startup mode after touch point occurs, and lockup mode for completing clutch closing when low clutch slip is attained. A non-automatic mode is entered before the accelerator pedal is depressed or when engine stall conditions are detected.
摘要翻译： 耦合发动机和车辆的齿轮传动装置的摩擦离合器由基于微处理器的电路控制，该电路使用根据发动机和离合器条件限定操作模式的逻辑。 在离合器关闭期间，当车辆在启动或启动模式下停止时，节气门或其他发动机控制信号被抑制以快速响应加速器踏板。 这避免了在实现足够的离合器容量之前产生高扭矩而引起的发动机超速。 在油门逻辑的控制下，控制信号作为踏板位置的函数展开，进而依赖于由离合器逻辑限定的离合器操作模式。 离合器操作模式是用于自动离合器操作的四种模式，包括接触点接近模式，其在初始离合器移动期间禁止油门信号，触摸点发生时的蠕变模式或启动模式，以及在获得低离合器打滑时完成离合器关闭的锁定模式。 在加速踏板被按下之前或当检测到发动机停转条件时，进入非自动模式。
-
公开(公告)号：US5523947A
公开(公告)日：1996-06-04
申请号：US126531
申请日：1993-09-24
申请人： Michael T. Breen
发明人： Michael T. Breen
CPC分类号： B62D13/00 , B60T8/1708 , B60T2230/06
摘要： A method and system for estimating the segment length of a multi-segment vehicle such as a semi tractor trailer vehicle is disclosed. The estimate is generated when the vehicle executes a turning maneuver. The method comprises determining the turning radius of the vehicle, sensing the articulation angle between two vehicle segments, such as a tractor and a trailer, generating a length estimate, and controlling the vehicle based on the estimate. The method and system are particularly useful for vehicles with steerable trailer axles in which controlling the vehicle includes automatically steering the trailer so that the trailer wheels follow a path substantially the same as the tractor wheels thus eliminating off-tracking. Controlling the vehicle may include detecting a jackknife condition and operating the braking system.
摘要翻译： 公开了一种用于估计诸如半拖车拖车的多段车辆的段长度的方法和系统。 当车辆执行车削操作时，产生估计值。 该方法包括确定车辆的转弯半径，感测诸如拖拉机和拖车之间的两个车辆段之间的关节角度，产生长度估计，以及基于该估计来控制车辆。 该方法和系统对于具有可转向的拖车轴的车辆特别有用，其中控制车辆包括自动地转向拖车，使得拖车轮跟随与拖拉机轮基本相同的路径，从而消除不跟踪。 控制车辆可以包括检测折刀条件并操作制动系统。
-
公开(公告)号：US5415466A
公开(公告)日：1995-05-16
申请号：US232722
申请日：1994-04-22
申请人： Michael T. Breen , Chia-Hsiang Liu
发明人： Michael T. Breen , Chia-Hsiang Liu
CPC分类号： B60T8/266 , B60T13/66 , B60T7/20 , B60T8/00 , B60T8/1708 , B60T8/172 , Y10S303/03 , Y10S303/04
摘要： A large articulated vehicle, such as a tractor semi-trailer truck often has a number of braking locations each having a number of brake sites. To properly balance the work performed at the various brake sites in decelerating the vehicle, it is necessary to determine the relative brake factors of each site. The brake factors characterize the braking performance for a particular delivered braking pressure. A system and method for determining the relative brake factors for such a vehicle is provided. The vehicle is decelerated at a known rate while delivered braking pressure is measured and recorded for each braking location. A system of simultaneous equations is then solved to determine the relative brake factors. Once the brake factors have been determined during a sequence of controlled braking events, subsequent braking may be modified to achieve a work-balanced braking mode.
摘要翻译： 诸如拖拉机半挂车的大型铰接车辆通常具有多个制动位置，每个制动位置具有多个制动器位置。 为了在各车辆减速时对各个制动部位进行的工作进行平衡，需要确定各站点的相对制动系数。 制动因素表征特定传动制动压力的制动性能。 提供了一种用于确定这种车辆的相对制动系数的系统和方法。 车辆以已知的速度减速，同时测量并记录每个制动位置的制动压力。 然后解决联立方程组，以确定相对制动系数。 一旦在一系列控制的制动事件中确定了制动因素，则可以修改随后的制动以实现工作平衡制动模式。
-
公开(公告)号：US5380072A
公开(公告)日：1995-01-10
申请号：US184798
申请日：1994-01-21
申请人： Michael T. Breen
发明人： Michael T. Breen
CPC分类号： B60T8/246 , B60T13/662 , B60T7/20 , B60T8/1708 , B60T8/248 , B60T8/323 , B60T2230/06
摘要： A trailer stability brake control method is disclosed for an articulated vehicle 11 which involves determining values indicative of tractor turning radius of curvature (TRC), articulation angle (AA) and time derivatives thereof, a value for wheel speed variance (WSV) is determined, and then a stability indicator (SI) is determined for each of TRC and AA, and the time derivatives thereof. The later step is performed by signal processing means (63) including filter means having a cutoff frequency (.OMEGA..sub.c) with the cutoff frequency decreasing as the wheel speed variance increases, and vice versa. The trailer brake control means (125) is de-actuated whenever the stability indicator (SI) relating to the articulation angle (AA) becomes less than the wheel speed variance.
摘要翻译： 公开了一种铰接式车辆11的拖车稳定制动控制方法，其涉及确定表示拖拉机转弯曲率半径（TRC），关节角度（AA）及其时间导数的值，车轮速度变化值（WSV）的值， 然后确定每个TRC和AA的稳定性指标（SI）及其时间导数。 后续步骤由信号处理装置（63）执行，信号处理装置（63）包括具有截止频率（OMEGA c）的滤波装置，截止频率随着车轮速度变化的增加而减小，反之亦然。 每当与关节角度（AA）相关的稳定性指示器（SI）变得小于车轮速度变化时，拖车制动控制装置（125）被解除驱动。
-
公开(公告)号：US5029948A
公开(公告)日：1991-07-09
申请号：US454110
申请日：1989-12-20
CPC分类号： B60T8/248 , B60T13/66 , B60T8/00 , B60T8/1708 , B60T2230/06
摘要： A brake control system/method for preventing or arresting and minimizing trailer-swing in an articulated vehicle (10) is provided. The control system/method senses or calculates values indicative of articulation angle (AA) and time derivatives thereof (dAA/dt, d.sup.2 AA/dt.sup.2) and processes same to sense conditions indicative of an incipient or initial trailer brake induced trailer-swing event.
摘要翻译： 提供一种用于在铰接式车辆（10）中预防或阻止和最小化拖车摆动的制动控制系统/方法。 控制系统/方法感测或计算指示关节角度（AA）及其时间导数（dAA / dt，d2AA / dt2）的值，并且对其进行处理以感测指示初始或初始拖车制动诱发的拖车摆动事件的条件。
-
公开(公告)号：US5005130A
公开(公告)日：1991-04-02
申请号：US454095
申请日：1989-12-20
CPC分类号： B60T8/248 , B60T8/1708 , B60T8/323 , B60T2230/06
摘要： A brake control system/method for preventing or arresting and minimizing trailer-swing (FIG. 6) in an articulated vehicle (10) is provided. The control system/method senses or calculates values indicative of least one time derivative of trailer transverse movement and processes same to sense conditions indicative of an incipient or initial trailer brake induced trailer-swing event.
摘要翻译： 提供了一种用于在铰接式车辆（10）中防止或阻止和最小化拖车摆动（图6）的制动控制系统/方法。 控制系统/方法感测或计算指示拖车横向移动的至少一次导数的值，并且处理相同的值，以感测指示初始或初始拖车制动引起的拖车摆动事件的条件。
-
公开(公告)号：US4856893A
公开(公告)日：1989-08-15
申请号：US103092
申请日：1987-09-30
申请人： Michael T. Breen
发明人： Michael T. Breen
CPC分类号： G01S17/08 , G01S17/102 , G01S17/58 , G01S17/87
摘要： A laser distance measuring apparatus in which source beams from two lasers are combined and focused on a target. One beam is continuous wave and one has periodic narrow pulse envelopes. After reflection the composite reflected beam is redivided in a diffraction grating and compared with two respective reference beams by means of two photodetectors. Doppler data are provided, as well as separate high resolution and low resolution range output data. Integration of the Doppler data in a computer, and combination of the three data signals there, enable an unusually complete and accurate record of the shape of the target even if the shape has many severe discontinuities, as in the case of a turbine rotor. An alternative embodiment provides for switching the pulse time of flight portion of the system to utilize various harmonics of the pulse envelope waveform. Known phase delays are switchably interposed in one channel so that relative phase readings between the reference and target pulses are performed at near-zero phase differences. Phase readings can be made accurately when the signals possess near-zero phase differences. Fixed errors can be measured and calibrated out of measurement data.
摘要翻译： 一种激光距离测量装置，其中将来自两个激光器的源光束组合并聚焦在目标上。 一束是连续波，一束是周期性的窄脉冲包络。 在反射之后，将复合反射光束重新分割成衍射光栅，并通过两个光电检测器与两个相应的参考光束进行比较。 提供多普勒数据，以及单独的高分辨率和低分辨率范围输出数据。 如在涡轮转子的情况下，即使形状具有许多严重的不连续性，计算机中的多普勒数据与其中的三个数据信号的组合使得能够非常完整和准确地记录目标的形状。 替代实施例提供了切换系统的飞行部分的脉冲时间以利用脉冲包络波形的各种谐波。 已知的相位延迟可切换地插入在一个通道中，使得在近零相位差处执行参考和目标脉冲之间的相对相位读数。 当信号具有近零相位差时，可以准确地进行相位读数。 固定误差可以从测量数据中测量和校准。
-
公开(公告)号：US4822164A
公开(公告)日：1989-04-18
申请号：US103088
申请日：1987-09-30
申请人： Michael T. Breen
发明人： Michael T. Breen
摘要： A closed loop optical gauge directs a laser beam toward an object whose radial velocity, instantaneous position, and/or shape are to be measured, and utilizes the Doppler frequency shift of the reflected beam to make measurements. A reference sample of the original direct beam has its frequency shifted by an acoustooptical modulator. A closed loop system is created by sensing the difference in frequency between the reflected beam and the shifted reference beam. The amount of frequency modulation is then controlled so that the frequency of the shifted reference beam continuouly tracks that of the reflected beam, preferably with a fixed offset of frequency. The output can be integrated with respect to time to obtain position or shape information.Absolute distance to the object is measured by transmitting a train of pulses of light toward the object and receiving reflected light pulses back. The round trip time of the light pulses is ascertained by measuring the phase displacement of the envelope of the reflected signals relative to the envelope of the transmitted light signals, with the aid of a phase locked loop. The oscillator of the phase locked loop is locked to the envelope of a reference sample of the transmitted signal, and can operate selectively at the fundamental frequency or a higher harmonic frequency of that envelope. A selected harmonic from the oscillator can be compared as to phase with the corresponding harmonic of the reflected light pulses. With calibration, the system can measure flight time, and therefore distance to the object, with high resolving power at the higher harmonic frequencies.
摘要翻译： 闭环光学量规将激光束引导到要测量径向速度，瞬时位置和/或形状的物体，并利用反射光束的多普勒频移进行测量。 原始直接光束的参考样本的频移由声光调制器。 通过感测反射光束和偏移的参考光束之间的频率差产生闭环系统。 然后控制频率调制量，使得偏移的参考光束的频率连续地跟踪反射光束的频率，优选地具有固定的频率偏移。 输出可以相对于时间进行积分以获得位置或形状信息。 通过向物体发送一束光脉冲并接收反射光脉冲来测量到物体的绝对距离。 光脉冲的往返时间通过借助于锁相环来测量反射信号的包络相对于透射光信号的包络的相位位移来确定。 锁相环的振荡器被锁定到发射信号的参考采样的包络上，并且可以选择性地在该信号的基频或高次谐波频率下工作。 可以将来自振荡器的选定谐波与反射光脉冲的对应谐波相位进行比较。 通过校准，系统可以测量飞行时间，从而测量与物体的距离，在较高谐波频率下具有高分辨率。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.022 秒)
