Abstract: An electric brake device selectively using, based on requests, a control scheme that reduces torque variation and a control scheme that maximizes a torque to provide a quiet operation with smaller torque variation for prioritizing Noise Vibration Harshness and a high torque operation or high output operation for prioritizing torque or output. A motor current calculator selectively uses an output prioritizing control scheme that prioritizes a torque output and a torque variation suppressing control scheme that prioritizes smaller torque variation. An output requirement determiner calculates a degree of importance of suppressing torque variation of an electric motor, based on one or both of a braking request and a travel condition of a vehicle. In accordance with this determination result, the motor current calculator selectively uses the output prioritizing control scheme and the torque variation suppressing control scheme.

Abstract: A method for selecting a gear ratio for a driveline of vehicle is provided. The method comprises gathering information relating to one or more parameters associated with the vehicle and anticipating, based on the gathered information, an occurrence of an event relating to the vehicle for which a change in driveline gear ratio is needed. The method further comprises identifying a suitable driveline gear ratio for the anticipated event, generating a command signal representative of a request to change the gear ratio of the driveline to the identified gear ratio, and communicating the command signal to a driveline subsystem of the vehicle. A system comprising an electronic control unit configured to perform the method is also provided.

Abstract: The present disclosure provides a power control apparatus of a construction machine, including: an engine connected to a hydraulic pump to drive the hydraulic pump; and a controller for calculating an engine load ratio defined as a ratio of a load torque of the engine for an engine maximum torque calculated from an input engine target RPM, and calculating an engine RPM command value according to the engine load ratio such that the engine is driven at the target RPM to output the calculated engine load ratio and engine RPM command value to the engine.

Abstract: An engine speed sensor determines engine speed data of an internal combustion engine for moving a material distribution vehicle. A ground speed sensor measures a ground speed of the material distribution vehicle. A data processor for controlling a dispensation system to distribute an agricultural input or material at a rate based on the measured ground speed and the engine speed data (e.g., sensed engine speed or change in engine speed) to anticipate a change in the ground speed of the material dispensation vehicle such that a lag in the rate of agricultural input delivered is reduced.

Abstract: In a method of changing the trigger threshold of a brake stand-by function of a vehicle brake, the brake stand-by function generates brake pressure in wheel brakes without application of a brake pedal. The trigger threshold value for the brake stand-by function is determined by the following steps: a) determining an average return speed of an accelerator pedal; b) changing the trigger threshold value for the brake stand-by function depending on the determined average return speed of the accelerator pedal. The method allows reducing the number of spurious releases of the brake stand-by function, which a sportive driving style brings about. In another embodiment of the method, the position of the accelerator pedal is used to change the trigger threshold value for the brake stand-by function.

Abstract: A motor vehicle multi-stage integrated brake assist (MSIBA) system, which can provide at least one brake assist level of a plurality of predetermined levels of brake assist (i.e., deceleration) less than or greater than the required amount of braking (i.e., deceleration) calculated by the MSIBA to avoid a collision with an obstacle at the time the driver initiates braking, but allows the driver to increase or remove the provided predetermined level of brake assist.

Abstract: A controller for a motor cleans, as necessary, a hydraulic chamber that generates hydraulic oil for changing a phase difference between two rotors so as to restrain sludge from building up in the hydraulic chamber. A motor has a first rotor and a second rotor that can be relatively rotated with respect to the first rotor. The controller includes a phase difference changing driver that changes the phase difference between the two rotors by controlling the pressure in the hydraulic chamber filled with hydraulic oil. The controller further includes a cleaning need determiner that determines the need for cleaning the hydraulic chamber, and a cleaning phase difference controller that controls the phase difference changing driver such that the second rotor is relatively rotated in the forward direction and the reverse direction alternately with respect to the first rotor if a determination result of the cleaning need determiner is affirmative.

Abstract: To provide a flexible polyurethane foam having improved sound absorbing properties in a low frequency region. A process for producing a flexible polyurethane foam which comprises foaming a starting material composition (E) comprising a high molecular weight polyoxyalkylene polyol (A), an organic polyisocyanate compound (B), a blowing agent (C) and a catalyst (D) in a closed mold, characterized in that at least a part of the high molecular weight polyoxyalkylene polyol (A) is a polyoxyalkylene polyol (p) having at least two hydroxyl groups on the average and having a molecular weight (Mc) per hydroxyl group of from 1,800 to 2,800 and a total unsaturation value (USV) of at most 0.08 meq/g, and that the air flowability of a flexible polyurethane foam obtained by foaming the starting material composition (E) in a thickness of 26 mm, is at most 0.085 m3/min.

Abstract: A vehicle having a vehicle body, a seat, an engine, a throttle body, a throttle valve, a throttle valve actuator, a throttle operator, a throttle operator position sensor, a cruise control switch, and a vehicle speed sensor. An ECU controls operation of the engine in one of a normal operation mode and a cruise control operation mode. When in the normal operation mode, the ECU sends a first control signal to the throttle valve actuator based on the throttle operator position signal. When the cruise control switch engages the cruise control operation mode, the ECU sends a second control signal to the throttle valve actuator based on the vehicle speed signal such that the vehicle speed is maintained at a vehicle cruising speed. The ECU returns to the normal operation mode when the throttle operator position becomes less than or equal to a reference throttle operator position.

Abstract: A vehicle cruise control system comprises a plurality of pre-set cruise control speed buttons and cruise control logic circuitry coupled to the pre-set cruise control speed buttons. Each one of the pre-set cruise control speed buttons corresponds to a respective pre-set cruise control speed. The cruise control logic circuitry is configured for implementing control of a vehicle speed to maintain the respective pre-set cruise control speed corresponding to a selected one of said pre-set cruise control speed buttons.

Abstract: A method and device for adaptive control of separation distance and/or driving speed of a motor vehicle, at least in a first operational mode an engine of the motor vehicle and in a second operational mode a brake of the motor vehicle being able to be activated as a function of a magnitude, representing an acceleration, the magnitude representing the setpoint acceleration is formed and/or limited at least as a function of at least one base value.

Abstract: The invention concerns a process for shortening the braking distance of a vehicle equipped with a brake servo unit which during a standard braking action is only triggered by the brake pedal pressure caused by the driver and in case of a critical driving situation is so triggered by a control device that in comparison to the standard braking action an increased amplification factor is set at the brake servo unit. The invention distinguishes itself by the fact that a danger potential is determined, stating the probability that the vehicle to be braked will be involved in an accident and that the increase of the amplification factor is controlled in accordance with the danger potential.

Abstract: An apparatus for controlling a drive system for an industrial truck having an internal combustion engine and a hydrostatic transmission wherein the hydrostatic transmission has a pump the delivery volume of which is variable and at least one hydraulic engine acting on at least one wheel of the industrial truck, comprising a first controller for the speed of the industrial truck in which a desired speed value compares to a actual value arriving from a speed transducer, further in which a speed controller determines a corresponding desired motive force and in which the signal for the motive force and the actual speed is provided to a characteristics stage in which at least one characteristic is stored which assigns approximately optimal rpm values to power values of the internal combustion engine and presets a corresponding desired-value signal for the number of revolutions of the internal combustion engine, and a second controller underlying the first controller having a desired-value and actual-value comparat

Abstract: An apparatus (10) for controlling the road speed of a motor vehicle has an accelerator pedal (12), which is biased counter to its actuating direction into an inoperative position and is movable from the inoperative position into a neutral position, from which a further movement of the accelerator pedal (12) counter to the spring bias leads to an increase of the drive torque of the motor vehicle drive. A device for detecting the inoperative position of the accelerator pedal (12) is connected to a braking-force generator (40) and in the inoperative position of the accelerator pedal (12) causes the braking-force generator (40) to make a predetermined braking force available.

Abstract: An auto-cruise controller to control the throttle angle of an engine so that the actual vehicle speed is equal to the target vehicle speed. In the controller, the pressure control of a lock-up clutch of an automatic transmission is conducted based on an amount of control of the lock-up pressure calculated corresponding to the traveling conditions of the vehicle when the throttle is fully closed, and when the vehicle is descending a slope during the auto-cruise control.

Abstract: Automatic acceleration/deceleration control for an automotive vehicle is provided which may be used in an automatic deceleration system and a vehicle-to-obstacle distance control system.The automatic acceleration/deceleration control determines a brake pressure control command when decelerating the vehicle based on a deceleration difference between a target deceleration and an actual deceleration of the vehicle and adjusts the brake pressure acting on a wheel of the vehicle in response to the brake pressure control command to decelerate the vehicle so that the actual deceleration agrees with the target deceleration. The automatic acceleration/deceleration control further corrects the brake pressure control command by modifying the deceleration difference for compensating for a time delay between output of the brake pressure control command and a time when the vehicle is actually decelerated.

Abstract: A process carries out an automatic braking operation in which, when the return speed of the accelerator pedal exceeds a threshold value and a transfer of the driver's foot from the accelerator pedal to the brake pedal is determined, an automatic braking operation is triggered. During that operation, a brake pressure is generated in the wheel brakes and is terminated when either a defined time has been exceeded since the triggering of the braking operation or when an operation of the brake pedal takes place by the driver. A support of the driver is ensured when operating the brake pedal in critical driving situations and a brake pressure buildup is carried out even before the operation of the brake pedal by the driver. After the automatic braking operation has been triggered, monitoring occurs to determine whether the time derivation of a quantity representing the operation of the brake pedal exceeds a threshold rise value.

Abstract: A cruise control system for vehicles uses a video camera to follow a vehicle driving ahead at a constant distance and speed on a highway. The system detects the distance to a vehicle and a relative speed to set the upper and lower limitations for the distance and the speed. The system controls a speed of the vehicle in accordance with the comparisons of the detected distance and speed with the limitations.

Abstract: An automotive vehicle having accessories as for example an anti-dive suspension and anti-dive suspension control, has an electrical circuit which is effective for applying control type signals to such accessories reflective of the rate of change in magnitude of the force applied to the vehicular braking system by the driver; a force sensitive resistor placed in the vehicular braking system is effective to create output signals to the electrical circuit which signals are employed by the electrical circuit to produce corresponding control type signals for application to the accessories.

Abstract: A system and method for automatically controlling a vehicle's speed to a desired cruise speed, for a vehicle in which a torque converter and an automatic transmission are mounted are disclosed in which, when the vehicle speed is controlled so as to conicide with the desired cruise speed by means of an automatic (vehicle) speed control device (ASCD) associated with the vehicle engine, deviation of a present vehicle speed from a desired cruise speed is derived. When a first predetermined degree of deviation is reached, the lock-up state of a lock-up device in the torque converter is inhibited. When the deviation further reaches a second predetermined degree of deviation, the second predetermined deviation being greater than the first, the automatic transmission is operated to inhibit a maximum speed gear range (e.g. a fourth speed range is downshifted to a third speed gear range).

Abstract: A system and method for automatically controlling a vehicle speed to a set desired cruise speed are disclosed in which a cruise speed control operation of a control portion is carried out only when a power supply for the system is turned on and all of vehicle speed set switches are turned off.

Abstract: A coupling apparatus for a speed regulator, or governor, of a typed used on motor vehicles for example, comprises a hollow connecting stud which is affixed to a governor positioning drive at a driven end telescoped to a hollow adjustment piece at a driving end. The hollow adjustment piece has a cap with an opening therein. A coupling rod passes through the opening having a driven end enlargement directed toward the governor positioning drive and a connecting apparatus at the other end connected to a speed adjusting apparatus. The coupling rod slides through the cap opening but the driven end enlargement is larger than that portion of the opening through which the coupling rod extends and can, therefore, not slide therein.

Abstract: A control device for controlling the operation of a fuel control member 17 of a vehicle engine includes a piston 12 coupled to the control member and connected to the throttle pedal of the vehicle through a lost motion spring 20. The pressure in the chambers 13, 14 defined on opposite sides of the piston can be controlled by valves so that in one mode the movement of the piston and fuel control member are directly under the control of the operator and when the vehicle is driven in a second mode, the piston controls the position of the fuel control member to provide "cruise control" and in a third mode the piston can move the fuel control member in opposition to the setting determined by the driver to provide "torque control".

Abstract: An automatic transmission control system for controlling an automatic transmision for use in a vehicle provided with a throttle control system which electrically controls a throttle valve to control the engine output according to the amount of depression of the accelerator pedal and a constant-speed cruising control system which makes the vehicle cruise at a desired constant speed includes a first gear-stage setting system which designates a gear stage of the automatic transmission on the basis of a first gear-shifting pattern, which applies when the constant-speed cruising control is not performed, and in which the gear stages of the automatic transmission are related to the detected amount of depression of the accelerator pedal and the vehicle speed or a value corresponding to the vehicle speed, and a second gear-stage setting system which designates a gear stage of the automatic transmission on the basis of a second gear-shifting pattern, which applies when the constant-speed cruising control is performed

Abstract: A cable attachment assembly for coupling and uncoupling a cable to a throttle control system partially encased within a housing. The housing includes an opening aligned with a cable drum and a protrusion adjacent the opening. A cable cover assembly includes an integrally formed collar having a resilient member formed thereon with a first flap at its end. A second flap is integrally formed on the collar adjacent the first flap. During rotation in an assembly process, the resilient member is compressed as the first flap rotates along the protrusion. As the first flap passes the protrusion, the resilient member is outwardly deflected thereby locking the protrusion between the first and second flaps and, accordingly, locking the cable cover assembly to the housing.

Abstract: Disclosed is a pressure actuator such as a vacuum actuator comprising a valve unit including a plurality of solenoid valves and a diaphragm unit including a diaphragm defining a pressure chamber, air pressure within the pressure chamber being adjusted by selective activation of the solenoid valves which communicate the pressure chamber with pressure sources of different pressure levels, in which a casing of the actuator defines an accommodating chamber for accommodating the solenoid valve unit and a wall surface of the chamber is provided with ribs for guiding and positioning the solenoid valve unit inside the chamber. The ribs may be adapted to make a sliding contact with a side surface of the yokes of the solenoid valves and a smooth surface a printed circuit board which is attached to the solenoid valve unit. Alternatively or additionally, the ribs may be adapted to be fitted into a gap between a pair of adjacent yokes of the solenoid valves.

Abstract: An ajustable throttle connector for a vehicle speed control unit is disclosed. The adjustable throttle connector includes a throttle connector arm which is pivotally connected in an adjustable manner to a housing for the vehicle speed control unit. The adjustable pivotal connection is accomplished by forming a plurality of apertures in the throttle connector arm near the center thereof. A corresponding plurality of apertures are formed in the housing. A pin is inserted through a selected one of the apertures formed in the throttle connector arm and also through the corresponding one of the apertures formed in the housing to provide a fulcrum about which the throttle connector arm is free to pivot.

Abstract: An automatic speed control mechanism for a motorcycle that embodies a separately driven vacuum pump for controlling the throttle valve of the motorcycle independently of its induction system vacuum. In addition, an indicator system is provided that indicates when the automatic speed control is operative and further which indicates the preset speed and the actual speed of travel. A manual arrangement is provided for manually overriding the automatic speed control so as to reduce vehicle speed without disabling the automatic speed control device.

Abstract: A system for automatically overriding operator control of engine power delivered to the drive wheels of a motor vehicle when a wheel slip condition is detected during vehicle acceleration. A pneumatic actuator in the engine fuel control circuit is operated in a controlled manner to cause the engine fuel lever to initially decrease power at a relatively fast rate and then at a relatively slow rate to alleviate the wheel slip. Once the wheel slip condition is corrected, the actuator is reset in a controlled manner, which allows the fuel lever to restore engine power, initially at a relatively fast rate and subsequently at a relatively slow rate, such rate controlled adjustment of engine power during each wheel slip control cycle providing less cyclic control of the wheel slip correction process, and accordingly a smoother acceleration.

Abstract: In order to prevent hunting between a selected gear ratio (e.g. overdrive) and the next lower one, when a vehicle ascends a slope or incline under "cruise control" an automatic speed control device (ASCD) which controls the opening of the engine throttle under the cruise control mode, upon being put into operation issues a control signal to the transmission control circuit which allows the latter to upshift the transmission to the predetermined gear ratio (viz., overdrive) and which renders the transmission control circuit incapable of downshifting to the next lower gear while the ASCD is functioning. Upon the vehicle speed falling a predetermined amount below the preselected target value, the ASDC issues a signal directly to the transmission to cause a downshift to the next lower gear ratio. Following such a downshift, the ASDC inhibits subsequent upshifting either for a predetermined period of time or until the load which necessitated the downshift disappears.

Abstract: In order to prevent hunting between a selected gear ratio (e.g. overdrive) and the next lower one when a vehicle ascends a slope or incline under "cruise control", the degree to which which the cruise control arrangement (viz., the automatic vehicle speed control device (ASCD)) can open the throttle valve is limited to a value at which the transmission control circuit (e.g. hydraulic) will induce a downshaft. Upon a downshift being necessary to maintain vehicle speed, upshift is inhibited either for a predetermined period of time or until the load which necessitated the downshaft disappears.

Abstract: An automatic speed control mechanism for a motorcycle that embodies a separately driven vacuum pump for controlling the throttle valve of the motorcycle independently of its induction system vacuum. In addition, an indicator system is provided that indicates when the automatic speed control is operative and further which indicates the preset speed and the actual speed of travel. A manual arrangement is provided for manually overriding the automatic speed control so as to reduce vehicle speed without disabling the automatic speed control device.

Abstract: An adjustable throttle connector for a vehicle speed control unit is disclosed. The adjustable throttle connector includes a throttle connector arm which is pivotally connected in an adjustable manner to a housing for the vehicle speed control unit. The adjustable pivotal connection is accomplished by forming a plurality of apertures in the throttle connector arm near the center thereof. A corresponding plurality of apertures are formed in the housing. A pin is inserted through a selected one of the apertures formed in the throttle connector arm and also through the corresponding one of the apertures formed in the housing to provide a fulcrum about which the throttle connector arm is free to pivot.

Abstract: An automatic speed control mechanism for motorcycles or the like having a wire operating mechanism for positively connecting the accelerator grip to the throttle control of the engine. The automatic speed control includes a vacuum operated motor that is connected to the throttle wire system through a lost motion connection so that the manual throttle operation can operate unencumbered by the automatic speed control system.

Abstract: A modulated vehicle cruise control system includes a source of vacuum, a servo transducer or control unit connected to the source of vacuum, an engine throttle position servo connected to the servo, a speed sensor and a logic circuit or command module. A modulator is disposed in series with and between the control unit and the source of vacuum. The modulator limits opening movement of the engine throttle by modulating communication of vacuum to the servo to prevent inefficient engine operation.

Abstract: A device for automatically disengaging an automotive cruise control system whenever one or more failures or malfunctions occur in the vehicle brake system and also if such a malfunction should occur when the vehicle is in the "resume speed" mode of the cruise control system. The device comprises an exclusive NOR circuit whose two symmetrical input terminals are connected to opposite sides of the brake switch in series with the vehicle power source. The output from the exclusive NOR circuit is connected to a logic control circuit and through a control resistor to a vehicle power lead. Any malfunction of the brake circuit when the cruise control is in operation will cause the exclusive NOR output to go from a relatively low to a relatively high potential thereby causing a logic control circuit to provide a disconnect signal to a throttle actuator. An additional safety factor is attained by connecting the control resistor to the base of a transistor in a power lead to the throttle actuator.

Abstract: A speed limiting device for vehicles is described in which an actuator is responsive to a vehicle speed sensor to reduce air and fuel supplies to the vehicle engine when a predetermined vehicle speed is reached. The possibility of the vehicle driver overriding the device from the driver's position is eliminated by making electrical connections to supply power for the device direct to the vehicle's battery, and by inserting in the accelerator pedal linkage an compressible elastic strut which limits the force exertable on the throttle linkage by the driver.

Abstract: A pneumatically operated speed governor (26) moves an engine throttle member (10) for controlling the speed of a vehicle. The governor includes a pneumatically operated actuator having an output connected to the engine throttle member. A pivotally mounted valve member (44) is positioned intermediate a vacuum supply orifice (46) and an atmospheric air orifice (48) and supplies a pneumatic signal to the actuator. An internal speed sensor (82) responsive to vehicle speed has an output member (100) which reacts against an improved, self-wiping minimum speed switch (102) and a set-speed control member (52) which in turn reacts against the pivotally mounted valve member (44) for varying the position of the valve member as the vehicle speed tends to fall below or rise above a predetermined set speed.

Abstract: A modulated vehicle cruise control system includes a source of vacuum, a servo transducer or control unit connected to the source of vacuum, an engine throttle position servo connected to the servo, a speed sensor and a logic circuit or command module. A modulator is disposed in series with and between the control unit and the source of vacuum. The modulator limits opening movement of the engine throttle by modulating communication of vacuum to the servo to prevent inefficient engine operation.

Abstract: Vacuum control apparatus for a vehicle having a speed control unit including a first vacuum line from the engine of the vehicle to the control unit and a second vacuum line from the control unit to a throttle servo of the engine, the vacuum control apparatus including vacuum measuring mechanism associated with the first vacuum line from the vehicle engine to the speed control unit, a supply of air to the second vacuum line from the speed control unit to the throttle servo, mechanism for selectively metering air into the second vacuum line, whereby sufficient air can be metered into the second vacuum line when the vacuum created by the engine decreases to prevent the speed control unit from opening the throttle excessively.

Abstract: A pneumatically operated speed governor (26) for moving an engine throttle member (10) for controlling the speed of a vehicle includes a pneumatically operated actuator having an output connected to the engine throttle member. A pivotally mounted valve member (44) is positioned intermediate a vacuum supply orifice (46) and an atmospheric air orifice (48) and supplies a pneumatic signal to the actuator. An inertial speed sensor (82) responsive to vehicle speed has an output member (100) which reacts against an improved, self-wiping minimum speed switch (102) and a set-speed control member (52) which in turn reacts against the pivotally mounted valve member (44) for varying the position of the valve member as the vehicle speed tends to fall below or rise above a predetermined set speed.

Abstract: A motor vehicle speed governor has features that make it advantageous for use with motor vehicles having flexible throttle cables. The speed governor has a vacuum responsive servo mounted in the passenger compartment for pulling on the rearward end of the throttle cable. A conduit extends from the vacuum servo to the engine manifold. The vacuum valve is connected into the conduit in the engine compartment for communicating the vacuum source with the servo. A vent valve is also mounted in the engine compartment in communication with the conduit for relieving the vacuum in the servo. Electronic controls are located in the passenger compartment for controlling the opening and closing of the vacuum and vent valves to govern the speed.

Abstract: A vehicle road speed control system is provided with a position feedback valve sensing position of the system servomotor power wall to modify the vacuum signal acting on the servomotor. One embodiment uses such a valve to control atmospheric air bleed, and another embodiment uses such a valve to control the vacuum supply.

Abstract: A vacuum and atmospheric air pressure actuated valve assembly which prevents re-energization of the servomotor of a vacuum actuated vehicle road speed control system after the brakes have been applied and the road speed control system de-energized. The device requires manual opening movement of the throttle valve by movement of the accelerator pedal, or stopping of the engine, to decrease the amount of vacuum sufficiently to let the device re-set to a condition which will permit the road speed control system to be re-energized.

Abstract: A two-shift throttle control system for an automotive engine, comprising a lever to be actuated by an accelerator pedal, a pedal-actuated control cable anchored at one end to the pedal-actuated lever and pulled toward the lever when the pedal is depressed, a throttle actuator unit responsive to a selected vehicle speed and operative to produce a mechanical force variable with the selected vehicle speed, an automatically-actuated control cable connected at one end to the throttle actuator unit, a throttle actuator lever movable with the throttle valve in the fuel supply system of the engine, a throttle drive cable anchored at one end to the actuator lever, a stationary shaft, and first and second rotatable members rotatable on the shaft independently of each other, each of the pedal-actuated control cable and throttle drive cable being anchored at the other ends to the first rotatable member for driving the rotatable member to turn in one direction about the shaft when the accelerator pedal is depressed, the a