Override of route events in the automatic longitudinal guidance mode

Abstract

A method for overriding a driving mode in an automatic longitudinal guidance mode of a motor vehicle includes setting a longitudinal guidance mode in the motor vehicle, providing a target speed for a journey event in the longitudinal guidance mode, manually overriding the target speed when the journey event is driven through by the motor vehicle, and aborting of the longitudinal guidance mode if the target speed of the journey event cannot be achieved within a settable delay.

Claims

1. A method for overriding a driving mode in an automatic longitudinal guidance mode of a motor vehicle, comprising the steps of: setting the automatic longitudinal guidance mode in the motor vehicle, wherein a predefined speed for a journey event is maintained in the automatic longitudinal guidance mode; temporarily manually overriding the automatic longitudinal guidance mode by manually overriding the predefined speed when the journey event is driven through by the motor vehicle; after the temporarily manually overriding of the automatic longitudinal guidance mode, checking whether the automatic longitudinal guidance mode can be continued again by checking whether the predefined speed for the journey event can be achieved within a settable delay in accordance with a current velocity of the motor vehicle; aborting of the automatic longitudinal guidance mode when the predefined speed of the journey event cannot be achieved within the settable delay and setting a manual driving mode wherein a driver has control of the motor vehicle after the aborting; and continuing again the automatic longitudinal guidance mode when the predefined speed for the journey event can be achieved within the settable delay.

2. The method according to claim 1, wherein the journey event is a bend, a roundabout, a turning, an exit, an entry slip road, a set of traffic lights or a speed specification.

3. The method according to claim 1, wherein the predefined speed is calculated dynamically for the journey event.

4. The method according to claim 1, wherein the manually overriding of the predefined speed results in acceleration of the motor vehicle beyond the predefined speed in accordance with a variation of a pedal position.

5. The method according to claim 1, wherein the manually overriding of the predefined speed results in acceleration of the motor vehicle beyond an envisaged acceleration.

6. The method according to claim 1, wherein the settable delay is set applicatively.

7. The method according to claim 1, wherein the settable delay is set in accordance with the driving mode.

8. A system arrangement for overriding a driving mode in an automatic longitudinal guidance mode of a motor vehicle, wherein the system arrangement is configured to perform the method according to claim 1.

9. A non-transitory computer program product comprising control instructions which execute the method comprising the steps of: setting the automatic longitudinal guidance mode in the motor vehicle, wherein a predefined speed for a journey event is maintained in the automatic longitudinal guidance mode; temporarily manually overriding the automatic longitudinal guidance mode by manually overriding the predefined speed when the journey event is driven through by the motor vehicle; after the temporarily manually overriding of the automatic longitudinal guidance mode, checking whether the automatic longitudinal guidance mode can be continued again by checking whether the predefined speed for the journey event can be achieved within a settable delay in accordance with a current velocity of the motor vehicle; aborting of the automatic longitudinal guidance mode when the predefined speed of the journey event cannot be achieved within the settable delay and setting a manual driving mode wherein a driver has control of the motor vehicle after the aborting; and continuing again the automatic longitudinal guidance mode when the predefined speed for the journey event can be achieved within the settable delay.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a schematic flow diagram of a method for overriding a driving mode in the automatic longitudinal guidance mode of a motor vehicle according to one aspect of the present invention.

DETAILED DESCRIPTION OF THE DRAWINGS

(2) FIG. 1 shows a schematic flow diagram of a method for overriding a driving mode in the automatic longitudinal guidance mode of a motor vehicle, comprising setting 100 a longitudinal guidance mode in the motor vehicle; providing 101 in each case a target speed for individual journey events in the longitudinal guidance mode; manually overriding 102 the target speed when the journey event is driven through, wherein aborting 103 of the longitudinal guidance mode occurs if the target speed of the journey event cannot be achieved within a settable delay.

(3) The maximum desired or safe lateral acceleration can also be taken into account, which acceleration indicates, in accordance with a specific radius of the bend, how quickly the bend can be travelled through. In the case of a sporty driving style, a higher lateral acceleration is tolerated than in the case of a comfortable mode. Furthermore, a geometric method, which analyses the bend with respect to its inclination, can be applied. In addition, it is possible to read out navigation data and then determine which specific route profile the vehicle is travelling through.

(4) A person skilled in the art knows here that the steps may have further sub-steps and, in particular, that the method steps can each be executed iteratively and/or in another sequence.

(5) A data memory or a computer-readable medium with a computer program product having control instructions which implement the proposed method and operate the proposed system arrangement when they are executed on a computer is not shown here.