公开(公告)号：US3599014A

公开(公告)日：1971-08-10

申请号：US3599014D

申请日：1969-04-30

Applicant: BENDIX CORP

Inventor： CARP RALPH W

IPC: B60T8/172 ,  G06G7/14 ,  H03K5/20

CPC classification number: B60T8/172 ,  G06G7/14

Abstract: A slip computer for generating a DC voltage output signal proportional to the difference in frequency of two input frequency signals which utilizes a differentially charged capacitor, charged by a charging current whose average value is correlated to the frequency of one frequency input signal and discharged by a discharging current whose average value is correlated to the frequency of the other frequency input signal. Capacitor voltage as determined by a high input impedance voltage detector is a measure of frequency difference.

公开(公告)号：US3574417A

公开(公告)日：1971-04-13

申请号：US3574417D

申请日：1969-05-13

Applicant: BENDIX CORP

Inventor： HOWARD DONALD W ,  CARP RALPH W

IPC: B60T8/72 ,  B60T8/172 ,  B60T8/1763 ,  B60T8/36 ,  B60T8/58 ,  F16K31/06 ,  B60T8/08

CPC classification number: B60T8/367 ,  B60T8/17633 ,  B60T8/58

Abstract: An adaptive braking system for automotive vehicles and the like having full power hydraulic fluid brakes wherein the rotational speed of a wheel whose braking characteristics are to be controlled is electrically sensed and a DC voltage level proportional to wheel acceleration derived therefrom in an adaptive braking system control channel. Wheel acceleration is compared to various reference levels corresponding to predetermined values of wheel acceleration so as to generate error signals. The error signals are applied to voltage ramp generators which are thus energized to generate ramp voltages across a normally open proportional solenoid valve. The solenoid valve is interposed in the hydraulic fluid line between the braking system control valve and the controlled wheel and in response to the ramp voltages acts to modulate the hydraulic fluid pressure transmitted by the braking system control valve to the wheel brake cylinders.

公开(公告)号：US3877755A

公开(公告)日：1975-04-15

申请号：US28904472

申请日：1972-07-14

Applicant: BENDIX CORP

Inventor： CARP RALPH W ,  MIESTERFELD FREDERICK O ,  HICKNER GEORGE B

IPC: B60T8/1763 ,  B60T8/58 ,  B60T8/12

CPC classification number: B60T8/58 ,  B60T8/17633

Abstract: In an adaptive braking system for trucks, automobiles and the like a latching gate is provided to block a control channel generated control signal from activating a brake pressure modulator until there is present simultaneously at the gate input a signal indicating that a control wheel is exceeding a first deceleration reference level and that the deceleration history of the control wheel as compared to wheel rotational velocity has satisfied proper criteria.

Abstract translation: 在用于卡车，汽车等的自适应制动系统中，提供闭锁门以阻挡控制通道产生的控制信号以激活制动压力调节器，直到在门输入处同时存在指示控制轮超过 第一减速基准水平，并且与轮转速相比，控制轮的减速历史已经满足适当的标准。

公开(公告)号：US3610703A

公开(公告)日：1971-10-05

申请号：US3610703D

申请日：1969-10-20

Applicant: BENDIX CORP

Inventor： SLAVIN MICHAEL ,  CARP RALPH W

IPC: B60T8/1764 ,  B60T8/58 ,  B60T8/70 ,  B60T8/04

CPC classification number: B60T8/1764 ,  B60T8/58

Abstract: Means for delaying effective control of vehicle braking by the control channel of an adaptive braking system includes a memory which is activated when a controlling vehicle wheel after being manually braked attains a certain deceleration. At that time a first signal proportional to a percentage of instantaneous wheel speed is memorized and thereafter continually compared to a second signal proportional to actual wheel speed. If within a predetermined time period the second signal drops to the level of the first signal an output is generated which latches open a gate to allow the control channel error signal to proceed to a brake pressure modulator to thereby control vehicle braking.

公开(公告)号：US3599052A

公开(公告)日：1971-08-10

申请号：US3599052D

申请日：1969-06-16

Applicant: BENDIX CORP

Inventor： CARP RALPH W ,  HOWARD WILLIAM E ,  SLAVIN MICHAEL ,  ANG LEONCIO T

IPC: B60K31/10 ,  F02D41/30 ,  H01H47/32

CPC classification number: F02D41/30 ,  B60K31/105

Abstract: An automobile speed control system wherein a voltage proportional to actual vehicle speed is fed through a low-loss memory capacitor to a comparator high input impedance port, momentary referring of which to a predetermined voltage impresses the vehicle instantaneous speed across the capacitor in the form of a command speed voltage. Thereafter, changes in vehicle speed cause the voltage at the comparator input port to change in accordance therewith, although the voltage across the capacitor remains constant. A voltage proportional to throttle position is applied through a feedback shaping circuit to the second comparator input port. The feedback circuit utilizes a DC feedback circuit paralleled by an AC feedback circuit to increase the throttle feedback signal when the throttle is moving. The error signal developed in the comparator is amplified and applied to a vacuum modulator which controls the pressure in a vacuum motor which, through a linkage, positions the throttle. A capacitor and resistance network may be switched into the comparator so as to vary the high input impedance port circuit voltage proportional to actual vehicle speed in accordance with the time constant of the network in such a manner as to cause the apparent vehicle speed to decrease, thereby causing the vehicle to accelerate at a predetermined rate. Control system turnoff circuitry is provided which temporarily disables the error signal amplifier whenever a turnoff voltage is applied thereto. This turnoff voltage may be applied by an operator-controlled switch which simultaneously places the memory capacitor in condition to record the instantaneous vehicle speed in the form of a command speed signal when the turnoff voltage is removed, thereby allowing the operator to cause the vehicle to decelerate to a new, lower command speed. Turnoff voltage may also be applied through a brake-operated switch. The control system is programmed to respond to voltage levels which are caused to appear at a system control point whenever the control point is shunted to ground through various resistances. These resistances are mounted in the vehicle steering column, thereby allowing all operatorinitiated functions to be controlled through a single wire.

公开(公告)号：US3544838A

公开(公告)日：1970-12-01

申请号：US3544838D

申请日：1968-06-06

Applicant: BENDIX CORP

Inventor： CARRUTH WINFORD B ,  CARP RALPH W

IPC: B60Q9/00 ,  B60Q1/06 ,  B60Q1/08

CPC classification number: B60Q9/001

公开(公告)号：US3883187A

公开(公告)日：1975-05-13

申请号：US46486774

申请日：1974-04-29

Applicant: BENDIX CORP

Inventor： CARP RALPH W ,  WEBER ROBERT E ,  WALKER BERTICE E

IPC: B60T8/58 ,  B60T8/1761 ,  B60T8/66 ,  B60T8/08

CPC classification number: B60T8/17613

Abstract: In a speed logic adaptive braking system for wheeled vehicles an increasing exponential function, which is initiated when the braking force is automatically released, is compared to a signal correlated to wheel speed in order to restore braking pressure. The exponential function is generated by means of a plurality of capacitors operating in accordance with charge transfer techniques. In addition, the final value of the exponential function is depressed a constant amount by the constant current sink to prevent system roll-out or loss of braking capacity under certain conditions.

Abstract translation: 在用于轮式车辆的速度逻辑自适应制动系统中，当将制动力自动释放时开始的增加的指数函数与与车轮速度相关的信号进行比较，以便恢复制动压力。 指数函数通过根据电荷转移技术操作的多个电容器产生。 此外，指数函数的最终值通过恒定电流吸收器抑制恒定量，以防止在某些条件下的系统推出或制动能力的损失。

公开(公告)号：US3870378A

公开(公告)日：1975-03-11

申请号：US39192573

申请日：1973-08-27

Applicant: BENDIX CORP

Inventor： CARP RALPH W

IPC: B60T8/66 ,  B60T8/172 ,  B60T8/1764 ,  B60T8/68 ,  B60T8/82 ,  B60T8/08

CPC classification number: B60T8/1764

Abstract: An adaptive braking system in which the speed of each wheel on an axle is independently sensed but the braking pressure of both axle wheels is controlled during adaptive braking by a single brake pressure modulator. The speed of each wheel is sensed by an individual wheel speed sensor which in turn feeds an individual control logic circuit for its respective wheel. A control logic circuit normally generates signals for attenuating and subsequently restoring brake pressure on the wheel whose wheel speed sensor is feeding it. In the present invention, the control logic circuits are connected to a brake pressure modulator through a gating circuit so that brake pressure on both wheels is attenuated only if both control logic circuits generate signals to attenuate brake pressure and brake pressure is subsequently restored only if both control logic circuits require that brake pressure be restored. The gating circuit also permits the wheel having the highest speed to control adaptive braking in case the ratio of the speed of the low speed wheel with respect to the speed of the high speed wheel drops below a predetermined level.

Abstract translation: 一种自适应制动系统，其中独立地感测到车轴上的每个车轮的速度，但是通过单个制动压力调节器在自适应制动期间控制两个车轮的制动压力。 每个车轮的速度由单独的车轮速度传感器感测到，该车轮速度传感器又为其相应的车轮供给单独的控制逻辑电路。 控制逻辑电路通常产生用于衰减并随后恢复车轮速度传感器馈送的车轮上的制动压力的信号。 在本发明中，控制逻辑电路通过门控电路连接到制动压力调节器，使得只有当两个控制逻辑电路产生信号以衰减制动压力时，两个车轮上的制动压力才被衰减，并且仅当两个 控制逻辑电路需要恢复制动压力。 门控电路还允许具有最高速度的车轮在低速轮相对于高速轮的速度的比率低于预定水平的情况下控制自适应制动。

公开(公告)号：US3640588A

公开(公告)日：1972-02-08

申请号：US3640588D

申请日：1970-03-03

Applicant: BENDIX CORP

Inventor： CARP RALPH W ,  MIESTERFELD FREDERICK O

IPC: B60T8/1763 ,  B60T8/08 ,  B60T8/12

CPC classification number: B60T8/17633

Abstract: In an adaptive braking system for automobiles, trucks and the like there is provided apparatus for delaying automatic braking control of the vehicle until, after the brakes are applied, a controlled wheel attains a first level of negative acceleration (deceleration) and thereafter the time integral of wheel acceleration attains a level related to controlled wheel speed.

Abstract translation: 在用于汽车，卡车等的自适应制动系统中，提供了用于延迟车辆的自动制动控制的装置，直到在制动器被施加之后，受控车轮达到第一级的负加速度（减速度），然后是时间积分 车轮加速度达到与控制车轮速度相关的水平。

公开(公告)号：US3582679A

公开(公告)日：1971-06-01

申请号：US3582679D

申请日：1968-10-29

Applicant: BENDIX CORP

Inventor： CARP RALPH W ,  MILLER RALPH M

IPC: B60K31/04 ,  G01P1/10 ,  H02P23/00 ,  H03K5/20

CPC classification number: G01P1/103 ,  B60K31/042 ,  B60W2520/10 ,  H02P23/16

Abstract: A control circuit for maintaining a detected condition at a maximum level. The condition, for example, the speed of an automobile, is detected by a sensor which includes a rotating magnet and a sensing coil. The rotation of the magnetic field is proportional to the velocity of the automobile and therefore the output frequency of the sensing coil is directly proportional to the speed of the vehicle. As the sensor output increases due to increases in the condition the limiting circuit actuates a counting circuit. The counting circuit then actuates a differential circuit which yields an output proportional to the detected condition. When the output of the difference circuit is above a predetermined level the current in an actuating coil is reduced to zero and full control is realized. When the output of the sensor is below a set level, current in the coil is a maximum and no limiting occurs. For conditions between the two extremes partial control is realized.