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公开(公告)号：US4745552A
公开(公告)日：1988-05-17
申请号：US846314
申请日：1986-03-31
IPC分类号： B60T8/172 , B60T8/175 , B60T8/1764 , B60T8/34
CPC分类号： B60T8/175
摘要： Anti-spin control systems are useful, for example, in industrial off-road vehicles. It is desirable that such systems exhibit rapid response to adverse working conditions, and be capable of quickly applying braking forces to whichever driven wheel is rotating at a higher velocity at a given time. The instant invention includes an electrical circuit for producing first and second brake control signals having values responsive to a working condition wherein one of the vehicle wheels loses traction and rotates more rapidly than the other vehicle wheel. A first controllable valve receives the first brake control signal and responsively controllably engages a brake mechanism associated with the faster rotating wheel, while a second controllable valve receives the second brake control signal and responsively controllably moves a brake mechanism associated with the slower rotating wheel from a brake released position to a brake pre-engaged position. Therefore, upon detecting a slippery working condition, each of the brake mechanisms associated with the driven wheels of the vehicle is brought into a state of readiness for immediate braking effort with minimal time delay.
摘要翻译： 防旋转控制系统在例如工业越野车辆中是有用的。 期望这样的系统对不利的工作条件表现出快速响应，并且能够在给定时间内以较高的速度快速地将制动力施加到任何从动轮旋转的制动力。 本发明包括用于产生第一和第二制动控制信号的电路，所述第一和第二制动控制信号具有响应于工作状态的值，其中车轮之一失去牵引力并且比其他车轮更快地旋转。 第一可控阀接收第一制动控制信号并且响应地可控制地接合与较快旋转轮相关联的制动机构，而第二可控阀接收第二制动控制信号并响应地可控地将与较慢旋转轮相关联的制动机构从 制动器释放位置到制动预接合位置。 因此，在检测到滑动的工作状态时，与车辆的从动轮相关联的每个制动机构进入立即制动的准备状态，同时以最短的时间延迟。
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公开(公告)号：US4521856A
公开(公告)日：1985-06-04
申请号：US605757
申请日：1984-05-01
申请人： Weldon L. Phelps , Alan L. Stahl
发明人： Weldon L. Phelps , Alan L. Stahl
IPC分类号： B60T8/58 , B60T8/175 , B60T8/1761 , B60T8/48 , B60T8/60 , B60T8/72 , B60T8/90 , G06F15/20 , B60T8/10
CPC分类号： B60T8/175 , B60T8/4809
摘要： Anti-wheel spin control systems are useful, for example, in industrial off-road vehicles. It is desirable that such systems operate automatically and not be unduly influenced by false slip signals caused by steering of the vehicle. It is further desirable that the operability of the control be readily determined by the operator. The instant anti-spin control includes an apparatus for producing a slip signal having a value responsive to the difference in rotational velocity between the vehicle wheels, and for producing a test signal. A processor receives the slip signal and test signal, compares the slip signal value with a first predetermined reference value in response to receiving the slip signal in the absence of the test signal, and compares the slip signal value with a second predetermined reference value in response to receiving both the slip signal and the test signal. A brake control signal is produced in response to the slip signal value exceeding the compared reference value, and the braking mechanism corresponding to the slipping wheel is activated. In a second embodiment of the invention, a steer signal is also produced and applied to the processor. The steer signal is utilized to negate the effect of steering the vehicle on the produced slip signal. Thus, the disclosed anti-spin system accounts for false slip indications produced by steering the vehicle, and provides a ready means for the operator to test the operability of the control system.
摘要翻译： 防轮旋转控制系统在例如工业越野车辆中是有用的。 希望这样的系统自动运行，并且不会由车辆的转向引起的假滑动信号的不适当的影响。 还希望操作者容易地确定控制的可操作性。 瞬时抗旋转控制包括用于产生滑差信号的装置，其具有响应于车轮之间的旋转速度差的值并产生测试信号。 响应于在没有测试信号的情况下接收到滑差信号，处理器接收到滑差信号和测试信号，将滑差信号值与第一预定参考值进行比较，并将滑差信号值与响应中的第二预定参考值进行比较 以接收滑差信号和测试信号。 响应于滑差信号值超过比较的参考值而产生制动控制信号，并且启动与滑轮对应的制动机构。 在本发明的第二实施例中，还产生转向信号并将其应用于处理器。 转向信号用于否定转向车辆对产生的滑移信号的影响。 因此，所公开的抗旋转系统考虑到通过转向车辆产生的错误滑动指示，并且为操作者提供了一种便于测试控制系统的可操作性的装置。
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公开(公告)号：US4178518A
公开(公告)日：1979-12-11
申请号：US920587
申请日：1978-06-29
申请人： Weldon L. Phelps
发明人： Weldon L. Phelps
CPC分类号： B66F9/24 , F16H61/0246 , F16H2059/088 , F16H61/18 , Y10T477/6934
摘要： Lift trucks (10) have many hand control levers which are manipulated to hoist a load, propel the lift truck (10) forward and rearward, and steer the lift truck (10). Some operations must be performed sequentially rather than simultaneously which increases loading time. An electronic directional control circuit (34) includes apparatus (36) for producing first and second command signals, apparatus (38) for producing first and second outputs in response to the first and second command signals, and apparatus (40) for delaying production of a preselected one of the first and second outputs a preselected time sufficient for the selected output to decrease to a preselected magnitude prior to the production of the other of the first and second outputs. The electronic directional control circuit (34) is useable with vehicles (10) which initiate the command signals with a foot operated pedal (12) while leaving the hands free for simultaneously operating other controls.
摘要翻译： 起重车（10）具有许多手动控制杆，其被操纵以提升负载，推进起重车（10）向前和向后，并引导起重车（10）。 一些操作必须顺序执行，而不是同时执行，这增加了加载时间。 电子方向控制电路（34）包括用于产生第一和第二命令信号的装置（36），用于响应于第一和第二命令信号产生第一和第二输出的装置（38），以及用于延迟产生 第一和第二输出端中预先选择的一个输出预定时间足以使所选择的输出在生成第一和第二输出中的另一个之前降低到预先选定的幅度。 电子方向控制电路（34）可用于与脚踏操作踏板（12）启动指令信号的车辆（10），同时使双手自由地同时操作其他控制。
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公开(公告)号：US4344139A
公开(公告)日：1982-08-10
申请号：US245245
申请日：1980-05-07
IPC分类号： B60K17/16 , B60K23/04 , B60T20060101 , B60T8/00 , B60T8/175 , B60T8/1761 , B60T8/26 , B60T8/48 , B60T8/82 , B60T8/86 , F16H48/18 , F16H48/20 , G06F15/20 , B60T8/10
CPC分类号： B60T8/175 , B60T8/17616 , B60T8/4809 , Y10S303/06
摘要： A slip control system for vehicles having spaced apart differentially driven wheels (200,202) including means (220) for calculating wheel slip according to the ratio of wheel speeds, means (242,230,232) for entering a slip control mode wherein a braking force is applied to the slipping wheel and incrementally varied on a periodic review basis according to recalculated slip values. If slip increases or holds steady, the brake force is incrementally increased. As slip becomes less, the brake force is incrementally reduced, the particular increments of force reduction being selected in accordance with successive measurements of slip. A drive shaft signal (226) is compared to the high wheel speed signal to identify a wheel speed transducer failure.
摘要翻译： PCT No.PCT / US80 / 00540 Sec。 371日期1980年5月7日 102（e）日期1980年5月7日PCT提交1980年5月7日PCT公布。 公开号WO81 / 03153 日期：1981年11月12日。一种用于具有间隔开的差速驱动轮（200,202）的车辆的滑动控制系统，包括用于根据车轮速度的比率计算车轮滑移的装置（220），用于进入滑动控制模式的装置（242,230,232），其中 根据重新计算的滑动值，在滑动轮上施加制动力并且以定期复查为基础逐渐变化。 如果滑移增加或保持稳定，则制动力逐渐增加。 随着滑差减小，制动力逐渐减小，根据滑差的连续测量来选择力减小的特定增量。 将驱动轴信号（226）与高速轮信号进行比较，以识别轮速传感器故障。
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公开(公告)号：US5438489A
公开(公告)日：1995-08-01
申请号：US129505
申请日：1993-09-30
CPC分类号： H01F7/1844 , H01F7/1877
摘要： An apparatus, for controllably driving a plurality of solenoids is provided. The apparatus includes a plurality of driver circuits. The plurality of driver circuits are configurable as one of proportional and binary driver circuits. A first number of the plurality of driver circuits include proportional driver circuits and a second number of the plurality of driver circuits include binary driver circuits. The apparatus controllably actuates the proportional driver circuits and the binary driver circuits. The apparatus detects failure conditions on the proportional driver circuits and the binary driver circuits and responsively produces respective failure condition signals. The apparatus is adapted to perform a proportional diagnostics routine on the proportional driver circuits and to perform a binary diagnostics routine on the binary driver circuits via the failure conditions detecting means.
摘要翻译： 提供了用于可控地驱动多个螺线管的装置。 该装置包括多个驱动电路。 多个驱动器电路可配置为比例和二进制驱动器电路之一。 多个驱动电路的第一数量包括比例驱动电路，第二数量的驱动电路包括二进制驱动电路。 该装置可控制地驱动比例驱动电路和二进制驱动电路。 该装置检测比例驱动器电路和二进制驱动器电路的故障状况，并且响应地产生相应的故障状态信号。 该装置适于在比例驱动器电路上执行比例诊断程序，并且经由故障条件检测装置对二进制驱动器电路执行二进制诊断程序。
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公开(公告)号：US4661766A
公开(公告)日：1987-04-28
申请号：US812677
申请日：1985-12-23
申请人： John P. Hoffman , Weldon L. Phelps
发明人： John P. Hoffman , Weldon L. Phelps
CPC分类号： H01H47/325
摘要： A hybridized solenoid driver circuit includes a first and second current sensing resistor. The first current sensing resistor is disposed within the flyback current path of the windings of an electrically actuated solenoid and provides a signal proportional to the flyback current only. Control of the solenoid current is effected by operation of a power transistor to controllably connect and disconnect the solenoid from the power supply at a preselected duty cycle. Operation of the driver circuit in the energization mode has no effect on the first current sensing resistor. Conversely, the second current sensing resistor is disposed within the energization current path and provides a signal proportional to the energization current only. Operation of the driver circuit in the flyback mode has no effect on the second current sensing resistor. A summing amplifier receives the first signal directly from the first current sensing resistor as it is referenced to ground; however, the second current sensing resistor is referenced to positive battery and the second signal must be passed through a current mirror prior to delivery to the summing amplifier. The signal provided by the summing amplifier is used by a control circuit to maintain the solenoid current at a desired level by constantly adjusting the duty cycle of a biasing signal delivered to the power transistor.
摘要翻译： 混合电磁线圈驱动器电路包括第一和第二电流感测电阻器。 第一电流感测电阻器设置在电驱动螺线管的绕组的回扫电流路径内，并且仅提供与回扫电流成比例的信号。 螺线管电流的控制通过功率晶体管的操作来实现，以在预选的占空比下可控地连接和断开螺线管与电源的连接。 在通电模式下的驱动电路的工作对第一电流检测电阻器没有影响。 相反，第二电流感测电阻器设置在通电电流路径内，并且仅提供与通电电流成比例的信号。 在回扫模式下的驱动电路的操作对第二电流感测电阻器没有影响。 加法放大器从第一电流检测电阻器直接接收第一信号，因为它参考地; 然而，第二电流感测电阻器参考正电池，并且第二信号必须在传送到求和放大器之前通过电流镜。 由加法放大器提供的信号由控制电路使用，以通过不断调节传递到功率晶体管的偏置信号的占空比来将电磁线圈电流维持在期望的水平。
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公开(公告)号：US4361871A
公开(公告)日：1982-11-30
申请号：US245224
申请日：1980-05-07
申请人： Robert G. Miller , Weldon L. Phelps
发明人： Robert G. Miller , Weldon L. Phelps
IPC分类号： B60T8/1761 , G06F15/20 , B60T8/10
CPC分类号： B60T8/17616
摘要： A slip control system for vehicles having spaced apart drive wheels (200,202) driven by an input shaft (204) through a differential unit (206) including means (220) for calculating wheel slip according to the ratio of wheel speeds, means (220,230,232) for entering a slip control mode wherein a braking force is applied to the slipping wheel and incrementally varied on a periodic review basis according to recalculated slip values. If slip increases or holds steady, the brake force is incrementally increased. As slip becomes less, the brake force is incrementally reduced, the particular increments of force reduction being selected in accordance with successive measurements of slip. A drive shaft signal (226) is compared to the high wheel speed signal to identify a wheel speed transducer failure.
摘要翻译： PCT No.PCT / US80 / 00539 Sec。 371日期1980年5月7日 102（e）日期1980年5月7日PCT提交1980年5月7日PCT公布。 公开号WO81 / 03152 日期：1981年11月12日。一种用于车辆的滑动控制系统，其具有通过差速单元（206）由输入轴（204）驱动的间隔开的驱动轮（200,202），包括用于根据比例计算车轮滑移的装置（220） 车轮速度，用于进入滑移控制模式的装置（220,230,232），其中制动力被施加到滑动轮并且根据重新计算的滑移值在周期性审查的基础上逐渐变化。 如果滑移增加或保持稳定，则制动力逐渐增加。 随着滑差减小，制动力逐渐减小，根据滑差的连续测量来选择力减小的特定增量。 将驱动轴信号（226）与高速轮信号进行比较，以识别轮速传感器故障。
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公开(公告)号：US5189940A
公开(公告)日：1993-03-02
申请号：US759390
申请日：1991-09-13
CPC分类号： E02F9/2217 , E02F9/2214
摘要： Vehicles having implements are typically used to perform repetitive functions in work cycles. An implement control system raises and lowers an implement relative to the vehicle and reduces the stresses applied to the vehicle from abruptly stopping the motion of the implement. A lever pilot signal is produced in response to the pivotal position of a control lever. An electrohydraulic pilot signal is also produced. The pilot signal having the greater pressure is directed to a main valve for controlling the position of the implement. The method and apparatus of the instant invention are applicable to a number of vehicles having a hydraulically operated implement.
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公开(公告)号：US5187709A
公开(公告)日：1993-02-16
申请号：US742218
申请日：1991-08-06
IPC分类号： B60R16/02 , B60R16/03 , H04L12/437
CPC分类号： B60R16/0315 , H04L12/437
摘要： A communications network is adapted to provide communication between control modules on a vehicle. Each control module includes a first and second transceiver. A control module checks for the presence of a data message from another control module before transmitting a data message. If there is no other data message present, the control module transmits the data message around the network in both directions using the first and second transceivers. The other control modules receive the data message from the previous control module and pass the data message to the next control module in the network.
摘要翻译： 通信网络适于在车辆上的控制模块之间提供通信。 每个控制模块包括第一和第二收发器。 在发送数据消息之前，控制模块检查来自另一控制模块的数据消息的存在。 如果没有其他数据消息存在，则控制模块使用第一和第二收发器在两个方向上围绕网络发送数据消息。 其他控制模块从前一个控制模块接收数据消息，并将数据消息传递给网络中的下一个控制模块。
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公开(公告)号：US4930366A
公开(公告)日：1990-06-05
申请号：US220865
申请日：1988-07-18
IPC分类号： F16H59/04
CPC分类号： F16H59/044 , Y10T74/19437 , Y10T74/2003
摘要： An electrical transmission control mechanism includes first and second control members which are individually limitedly rotatable to respectively select the directional and neutral modes or the speed ratio modes of a transmission. First and second electrical rotary type switching devices which are respectively responsive to the movement of the control members are disposed within the mechanism for controllably disconnecting the supply and ground side leads of one of a plurality of transmission clutch actuating solenoids and connecting the supply and ground side leads of another one to minimize the possibility of any inadvertent electrical short in causing unexpected operation of the transmission. Each of the compact and reliable rotary switching devices has a plurality of upstanding contact members arranged at preselected radii and a plurality of radially oriented wiper members that make selected contact with pairs of the contact members to provide a multitude of desirable operating functions. The mechanism features a simple and yet rugged arrangement of the control members and the switching devices that is easy to operate.
摘要翻译： 电传动控制机构包括第一和第二控制构件，该第一和第二控制构件单独地有限地可旋转以分别选择变速器的方向和中性模式或变速比模式。 分别响应于控制构件的移动的第一和第二电动旋转式开关装置设置在用于可控制地断开多个变速离合器致动螺线管之一的供应和接地侧引线并连接供电和接地侧的机构 另一个的引线可以最小化导致传输的意外操作的任何无意的电短路的可能性。 每个紧凑且可靠的旋转开关装置具有以预选半径布置的多个直立接触构件和多个径向定向的擦拭器构件，其与所述接触构件对成选择的接触以提供多种所需的操作功能。 该机构具有易于操作的控制构件和开关装置的简单且坚固的布置。
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