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

1-10. (canceled)

11. A method for overriding a driving mode in an automatic longitudinal guidance mode of a motor vehicle, comprising the steps of: 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.

12. The method according to claim 11, 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.

13. The method according to claim 11, wherein the target speed is calculated dynamically for the journey event.

14. The method according to claim 11, wherein the manually overriding of the target speed results in acceleration of the motor vehicle beyond the target speed in accordance with a variation of a pedal position.

15. The method according to claim 11, wherein the manually overriding of the target speed results in acceleration of the motor vehicle beyond an envisaged acceleration.

16. The method according to claim 11, wherein the settable delay is set applicatively.

17. The method according to claim 11, wherein the settable delay is set in accordance with a driving mode.

18. The method according to claim 11 further comprising the step of checking as to whether the target speed for the journey event can be achieved within the settable delay in accordance with a current velocity of the motor vehicle.

19. A system arrangement for overriding a driving mode in an automatic longitudinal guidance mode of a motor vehicle, comprising: an interface unit configured to set a longitudinal guidance mode in the motor vehicle; a data memory configured to provide a target speed for a journey event in the longitudinal guidance mode; and a cruise control unit configured to manually override the target speed when the journey event is driven through by the motor vehicle; wherein aborting of the longitudinal guidance mode occurs if the target speed of the journey event cannot be achieved within a settable delay.

20. A computer program product comprising control instructions which execute the method according to claim 11 when the control instructions are executed on a computer.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.