Device, operating method, and electronic control unit for controlling a vehicle which can be driven in an at least partly automated manner

Patent metadata

Field	Value
Publication number	US-10745049-B2
Application number	US-201916290404-A
Country	US
Kind code	B2
Filing date	Mar 1, 2019
Priority date	Sep 16, 2016
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

An operating element can be operated by a driver for controlling at least the lateral guidance of the vehicle. A wheel angle adjuster is actuated by the operating element of the driver and/or by an electronic control unit that controls the automated lateral guidance of the vehicle so as to adjust a steering angle at the steerable wheels of the vehicle. In the process, a degree of coupling between at least one first part of the operating element and the wheel angle adjuster of the vehicle and/or between at least one first part of the operating element and a fixed position in the coordinate system of the vehicle can be modified depending on the degree of haptic contact between the driver of the vehicle and the aforementioned first part of the operating element.

First claim

What is claimed is:

1. A device for controlling a vehicle which is drivable in an at least partly automated manner, comprising:
an operating element which is operatable by a driver to control at least lateral guidance of the vehicle; and
a wheel-angle actuator which, controlled by the operating element of the driver and/or by an electronic control unit controlling automated lateral guidance of the vehicle, controls a steer angle on steerable wheels of the vehicle,
wherein a degree of coupling between at least one first part of the operating element and the wheel-angle actuator of the vehicle and/or between at least one first part of the operating element and a fixed position in a coordinate system of the vehicle, is changeable according to measurement of haptic contact of the driver of the vehicle with said first part of the operating element.

2. The device as claimed in claim 1 , wherein an electronic control unit opens the coupling at least in part and thus decreases the degree of the coupling when the measurement of said haptic contact decreases.

3. The device as claimed in claim 2 , wherein an electronic control unit closes the coupling at least in part and thus increases the degree of the coupling when the measurement of said haptic contact increases.

4. The device as claimed in claim 1 , wherein an electronic control unit closes the coupling at least in part and thus increases the degree of the coupling when the measurement of said haptic contact increases.

5. The device as claimed in claim 1 , wherein the degree of the coupling between at least one part of the operating element and the wheel-angle actuator is changeable in at least two steps, continuously, or almost continuously according to the measurement of the haptic contact.

6. The device as claimed in claim 1 , wherein the measurement of the haptic contact between the driver and the operating element includes a pattern of the haptic contact based on pressure that is applied to the operating element by at least one hand of the driver.

7. The device as claimed in claim 1 , wherein the measurement of the haptic contact between the driver and the operating element includes a pattern of the haptic contact based a surface pattern composed of capacitively detected measurement values.

8. The device as claimed in claim 1 , wherein the degree of the coupling of at least one second part of the operating element relative to a fixed position in the coordinate system of the vehicle is controlled or can be set, and wherein the second part is different from the first part.

9. The device as claimed in claim 1 , wherein a change in the degree of the coupling of the operating element or part thereof is dependent on an action, exceeding a preset measurement, of the driver on another operating unit for guiding the vehicle.

10. The device as claimed in claim 1 , wherein the device is configured to detect that the driver has a takeover wish and/or is able to steer in relation to a driving task, and to control the degree of the coupling of at least one part of the operating element according to the detected measurement of the wish to take over and/or of the ability to take over.

11. The device as claimed in claim 1 , wherein the device is configured to identify an automatic maneuver that is currently being carried out or is expected to be performed at least in part and consequently apply different measurements of the haptic contact as a prerequisite for a change in the degree of the coupling.

12. The device as claimed in claim 1 , wherein the device is configured to output at least one haptic signal to at least one part of the operating element in connection with a change in the degree of the coupling and/or to change at least one haptic property of at least one part of the operating element in connection with the current degree of the coupling.

13. An electronic control unit, comprising:
a control unit operatively configured to operate a device for controlling a vehicle which is drivable in an at least partly automated manner, the device comprising:
an operating element which is operatable by a driver to control at least lateral guidance of the vehicle; and
a wheel-angle actuator which, controlled by the operating element of the driver and/or by an electronic control unit controlling automated lateral guidance of the vehicle, controls a steer angle on steerable wheels of the vehicle,
wherein a degree of coupling between at least one first part of the operating element and the wheel-angle actuator of the vehicle and/or between at least one first part of the operating element and a fixed position in a coordinate system of the vehicle, is changeable according to measurement of haptic contact of the driver of the vehicle with said first part of the operating element.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Augst Alexander

Classifications

• B62D15/0265

  Automatic obstacle avoidance by steering · CPC title

• B62D5/008

  Changing the transfer ratio between the steering wheel and the steering gear by variable supply of energy, e.g. by using a superposition gear · CPC title

• B62D15/025 Primary

  Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation (B62D1/28 takes precedence) · CPC title

• B62D15/029

  Steering assistants using warnings or proposing actions to the driver without influencing the steering system · CPC title

• B60K28/06

  responsive to incapacity of driver · CPC title