摘要:
A device for the control of the traveling speed of a motor vehicle with a regulating member actuatable by the vehicle driver, the gas pedal emitting an electrical signal, the gas pedal being connected with the desired value input of an electrical controller, the output signal of which acts on a positioning actuator, the latter being coupled with the element, particularly the throttle valve, which influences the fuel-air mixture, the instantaneous setting position of the positioning actuator being transmitted as an electric signal to the actual value input of the controller. The actual value input or the desired value input of the controller is driven by a circuit which produces a signal for influencing the position of the throttle valve, which signal is dependent on at least one factor to be monitored.
摘要:
A device for the control of the traveling speed of a motor vehicle with a regulating unit actuatable by the vehicle driver, particularly a gas pedal, and means for transmission of the movement of the same to an element, particularly the throttle valve, which influences the fuel-air mixture. An electrical controller is provided, the desired value input of which is applied with the output signal of a first electrical position indicator, the latter being coupled with the regulating unit and the actual value input of which is applied with the output signal of a second electrical position indicator, the latter being coupled with the setting member or positioning actuator of an electrical setting or adjusting device, the actuator standing in connection with the element which influences the air-fuel mixture. Measures are provided which compensate for abnormal speed conditions of the device.
摘要:
A displacement device for a throttle valve of an internal combustion engine in idling condition, has a housing, a diaphragm which is arranged in a chamber in the housing and is operatively connected to the throttle valve, a spring in the chamber, which spring acts with one end against the diaphragm, a vacuum connection to the one chamber, a connection for atmospheric pressure, a coil, and an armature which is axially displaceable in the coil, a valve body being firmly connected to the armature and keeping a connection for atmospheric pressure open or closed corresponding to its instantaneous position. A single connection for atmospheric pressure leads to the chamber and is kept open or closed by the valve body. The connection for vacuum is also kept open or closed by the valve body, the two connections being opened alternately. The valve body is acted on by the spring. The coil current is provided as control variable for the position of the throttle valve.
摘要:
A device for the control of the traveling speed of a motor vehicle with an electrical controller which compares the prevailing actual speed with a desired nominal speed and contains a regulating unit electromotorically controlled by the control deviation, which regulating unit is coupled directly or indirectly with an element, particularly the throttle valve, which influences the fuel-air mixture supplied to the vehicle motor. A coupling is between the element and the movable part of the regulating unit, which coupling is operatively connected directly or indirectly with the brake pedal and/or the clutch pedal of the vehicle in such a manner that during the actuation of the brake pedal or the clutch pedal the coupling is acted upon so as to separate the regulating unit from the element.
摘要:
A setting device is provided for a feed device, in particular the throttle valve of an internal combustion engine with idling speed control, in which the throttle valve is located in the intake manifold. The throttle valve is connected to a displacement rod and pretensioned by a return spring. A first, adjustable stop and a second, fixed stop are provided for an actuating lever of the throttle valve. The second, fixed stop limits the adjustment range of the first stop for a minimal opening of the throttle valve. An idle stop, which is preferably developed as single-piece lever, acts with the actuating lever. By cooperation of the idle stop lever with the two stops, there is assured, on the one hand, a control of the idle position of the throttle valve, in which case a minimal opening position is established, while, on the other hand, an idle position of the throttle valve with a somewhat larger opening than the minimal opening is assured in the event that the idle speed control fails or becomes defective.
摘要:
In a fuel-injection valve, a holding member which bears a plug as atomizing and metering element is inserted in a valve bore. A replaceable diaphragm makes it possible to adjust the precise discharge quantity of the fuel-injection valve by replacement of said diaphragm.
摘要:
A position indicator which can be coupled to a gas pedal has a housing with a substantially cylindrical hollow inner space. A rotary resistor is arranged fixed against turning in a mount which can be fastened to the housing. A setting shaft for the rotary resistor is connected with a drive shaft of the position indicator so as to be actuated by a turning movement of the drive shaft. The drive shaft and the setting shaft are turned back by at least one restoring spring when the gas pedal is released. A member connected with the drive shaft serves to accommodate the restoring springs and for the arrangement or development of an actuating member for a kick-down switch. In order to be able to adapt the position indicator in diversified fashion to desired restoration characteristics and required characteristic curves of the rotary resistor and to facilitate the final mounting of the position indicator, the latter consists of a first mechanical assembly and a second electrical assembly which can be inserted one after the other into the housing. Upon the insertion of the second electrical assembly the two assemblies are axially aligned with each other. The setting shaft and the member connected with the drive shaft can thus automatically couple with each other.
摘要:
A setting lever (8) adapted to be turned mechanically is seated in turnable manner on a throttle-valve shaft (2) of a throttle-valve connection (1). A driver arm (12) of the setting lever engages between two legs (10, 11) of a coupling spring (9). Another driver arm (13) which is firmly attached to the throttle-valve shaft (2) also engages between said legs (10, 11). In this way an electric motor (4) which is developed as stepping motor can turn the throttle-valve shaft (2), for instance, on a basis of commands of an anti-slip control or of a speed control, regardless of the position of the setting lever (8).
摘要:
Device for the control of the traveling speed of a motor vehicle with a vehicle-driver-actuatable gas pedal and with means for the transmission of the movement of the gas pedal to an element which element influences the fuel-air mixture particularly the throttle valve, which means contain a position encoder with a rheostat and a limit switch, the position encoder being coupled with the gas pedal. The position encoder has a housing with a hollow cylindrical interior space in which the rheostat is located, the latter being fixed to the housing prevented from twisting with one of its two relatively moveable parts. With its other part the rheostat is connected with a bell-shaped body which is rotatably mounted in the hollow cylindrical interior space and is rotatable from a rest position against the force of a return spring by means of the gas pedal as well as being provided with means via which, upon rotation of the bell-shaped body by a certain pregiven amount, an electric switch is actuatable, the electric switch being secured on the housing.
摘要:
An apparatus for controlling the traveling speed of a motor vehicle with an electric control unit acted upon by a speed dependent signal, which unit compares the actual traveling speed with a predetermined desired traveling speed, and upon a deviation transmits a signal which is dependent on the size of the deviation to a control stage. The control stage comprises a pneumatic actuator which acts on an element, preferably a throttle valve, which influences the ratio of a fuel-air mixture fed to the motor of the vehicle, as well as two electromagnetically actuatable valves coordinated to the actuator, the valves enabling the actuator to be admitted with reduced pressure, or normal pressure, respectively. The control stage includes an electromagnetic system having an excitation coil and an armature cooperating therewith. The armature is pivotally mounted for smooth pivoting from a rest position, in which position both of the two valves are closed, against the force of a spring, which force is dependent on the stroke of the actuator, into operating positions, respectively, in which positions one of the two valves is opened and the other valve is closed. An additional valve admits the pneumatic actuator with above-atmospheric or normal pressure, respectively, when the excitation coil becomes currentless.