CZ18466U1 - Actuating mechanism for automatic control of automobile steering angle - Google Patents

Description

Technical field

The technical solution relates to the actuator for controlling the steering wheel of the steering axle. In principle, it is an actuator of a control circuit or a remote control circuit.

Background Art

At present, according to the available information, it is not known that equipment of a similar type exists or has been used in car equipment in this way, which is used to register a utility model.

Driving in a lane is normally done with a steering wheel with the appropriate steering axle. The deflection of the steering wheels can be accomplished by mechanical transmission directly or indirectly by means of a built-in power steering. For lower-priced or older cars, direct steering without boosters is used. Today's more expensive and mid-size car manufacturers equip most of their products with power steering. The power steering becomes standard equipment for many cars in the lowest price range.

It is necessary to realize that the majority of the driving is devoted to the directional stabilization of the car in the lane, which consists in the constant correction of minor directional deviations. The fact is that late reaction or disproportionate interference with steering of the steering axle is a frequent cause of accidents.

The essence of the technical solution

The servo drive for automatic steering of the car on the lane route complements the car's equipment with the possibility of automatic directional control, ie maintaining the vehicle's driving distance from the roadside. The main component is an actuator (actuator) that controls the steering axle steering.

The principle of automatic steering control is to monitor the distance from the shoulder, while auto-matically correct the deviations according to optimum or set values. Distance detection is done using sensors, the central unit (regulator) evaluates the signal to the actuator and turns it to the setpoint. This elementary control circuit is known in common technical practice. However, the solution only concerns an actuator which, by adjusting to a standard power steering, allows the power steering and the actuator of the automatic steering control circuit to be disabled. We can also get the servo drive function out of the equipment of the car equipped with the power steering booster without the proposed changes in the steering gear of the car.

In the case of application of this solution, it is a suitable adjustment on the power steering, where the main function of the power steering is supplemented by the function of the actuator for the steering.

When the power steering is modified to act as an actuator, the basic steering system is left in its original state and the booster is only supplemented by the control lever of the regulator in the hydraulic circuit. In this case, the control lever is deflected by the output signal from the steering control or by transmitting the signal from the remote control.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution is illustrated with the help of the drawings, in which the manual steering of a steering wheel with manual steering is provided with the actuator function (control actuator) with the actuating element shown in FIG.

-1 CZ 18466 Ul

It can be seen from the drawing that the original manual power steering function is left in the commonly used embodiment and is only supplemented by a control lever. The position of the regulator lever is controlled only by the signal from the controller or the control unit in the case of remote control.

FIG. 2 schematically illustrates a power steering function supplemented by a servo-drive function (i.e., a control unit control) for remote or automatic steering of a vehicle.

An example of a technical solution

Fig. 1 shows a power steering assembly with the function of an actuator for automatic steering control, which consists of a steering wheel 1 of a steering wheel 2 with a flexible torsion part 3 which rotates the regulating valve (regulating flap or valve) 4 connected to the left or right part of the silo a roller 8 connected to the ridge 7 via a pinion 6 from the steering handwheel. The steering wheel 9 of the steering axle is deflected when the actuator is used by means of the lever W in conjunction with the regulating member 4. The change of position of the regulating member 4 then acts on the deflection of the steering wheel 9.

Power Steering Functions:

Turning the steering wheel 1 simultaneously rotates the steering wheel 2, the elastic torsion part 3 rotates the regulating member 4 connected to the hydraulic fluid supply to the chambers of the power cylinder 8, which deflects the steering wheel 9 by means of a steering gear (valid when using manual steering).

Actuator steering function (ie with power steering):

FIG. 2 shows the operation of the power steering when the servo motor function is used. By deflecting the lever 10 with the regulating element 4, one of the chambers of the double-acting power unit 8 is filled. regulating flap or valve), which changes the piston rod position in the silo cylinder 8. The function is practically proportional to the short distances and the appropriate dimensions of the connecting pipe as well as sufficient power of the hydraulic pump.

The output signal on the actuator lever 10 of the actuator (modified booster) can be carried out by various media at the choice of the control circuit (electrically, hydraulically, pneumatically, mechanically, by vacuum, etc.).

In the automatic control mode or remote control by the actuator, the manual steering is maintained in the original function. Interventions in the steering control are only effected by means of the lever 10 by the regulating means 4. The steering wheel with the steering wheel is rotated passively by the power roller by the pinion 6. The actuator is deactivated by the interruption of the signal on the lever 10 and only the manual steering is again in the function.

Thus, the present construction of a servo drive for driving a vehicle utilizes a power steering in said modification for use for automatic or remote steering of a vehicle without the use of a separate actuator. Modification of the power steering system used as standard offers the possibility of remote and automatic steering of the car.

Claims (1)

PROTECTION REQUIREMENTS An actuator for automatic steering of an automobile which is equipped with a power steering, characterized in that the steering power steering is supplemented by an operating lever (10) which is connected to a control body (4).