Driver Assistance System for Assisting the Driver for the Purpose of Consumption-Controlled Driving

• US 20120078467A1
• Filed: 09/22/2011
• Published: 03/29/2012
• Est. Priority Date: 09/28/2010
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: SCHWEIKL, Johann, Schulze, Christof, Geus, Juergen, Mumelter, Georg, Popp, Christian
• Granted Patent: US 9,242,653 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60K 2360/172 Driving mode indication
• CPC Class Codes: B60K 2360/174 Economic driving
• CPC Class Codes: B60K 26/021 with means for providing feel, e.g. by changing pedal force characteristics
• CPC Class Codes: B60K 35/28 characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60W 2540/103 Accelerator thresholds, e.g. kickdown
• CPC Class Codes: B60W 2552/20 Road profile, i.e. the change in elevation or curvature of a plurality of continuous road segments
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 50/082 Selecting or switching between different modes of propelling
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

Abstract

A driver assistance system for assisting a driver in achieving consumption-controlled driving combines haptic and visual acknowledgment functions, particularly in the form of a drive configuration, a display concept, and/or a deceleration assistant. A modified characteristic accelerator pedal curve is utilized, and ECO tips of the interactive output of efficient driving instructions are provided.

Claims

1. A driver assistance system for assisting a driver in achieving consumption-controlled driving, the driver assistance system comprising:

an electronic control system; and

wherein the electronic control system is operatively configured to activate a defined characteristic accelerator pedal curve at least in a defined economical driving mode, the defined characteristic accelerator pedal curve having a first metering range for an efficient driving method having a comparatively flat gradient, a second notification range for indicating a leaving of the efficient driving method having a gradient change toward zero, and a third dynamic range having a relatively steep gradient during which efficiency criteria are ignored; and

wherein said defined characteristic accelerator pedal curve provides a haptic acknowledgment function in a drive configuration.

2. The driver assistance system according to claim 1, wherein the first metering range comprises a largest portion of the characteristic accelerator pedal curve, and wherein the second notification range comprises a smallest part of the characteristic accelerator pedal curve.

3. The driver assistance system according to claim 1, further comprising:

a display providing a visual acknowledgement function, wherein in the defined economical driving mode, a bar-shaped efficiency range is always visible on the display and is visually highlighted when an accelerator pedal angle is in the first metering range.

4. The driver assistance system according to claim 2, further comprising:

a display providing a visual acknowledgement function, wherein in the defined economical driving mode, a bar-shaped efficiency range is always visible on the display and is visually highlighted when an accelerator pedal angle is in the first metering range.

5. The driver assistance system according to claim 4, wherein the bar-shaped efficiency range is related to the characteristic accelerator pedal curve with respect to accelerator pedal angle, and further wherein a marker is provided on the bar-shaped efficiency range to indicate a current accelerator pedal angle in the efficiency range.

6. The driver assistance system according to claim 3, wherein the bar-shaped efficiency range is related to the characteristic accelerator pedal curve with respect to accelerator pedal angle, and further wherein a marker is provided on the bar-shaped efficiency range to indicate a current accelerator pedal angle in the efficiency range.

7. The driver assistance system according to claim 3, wherein the display emits a driver recommendation until such time as the driver follows or completes the driver recommendation.

8. The driver assistance system according to claim 7, wherein the driver recommendation is provided by at least one of an arrow, a symbol, and a text instruction on the display.

9. The driver assistance system according to claim 3, wherein:

the display includes a bar-shaped dynamic range adjoining the bar-shaped efficiency range on a right-hand side thereof; and

wherein the bar-shaped dynamic range is a function of the characteristic accelerator pedal curve based on the accelerator pedal angle and reflects a dynamic driving range; and

wherein the bar-shaped dynamic range is never highlighted and a marker provided for showing a current accelerator pedal angle is set in the bar-shaped dynamic range only when the accelerator pedal angle with respect to the characteristic accelerator pedal curve is in the dynamic range.

10. The driver assistance system according to claim 5, wherein:

the display includes a bar-shaped dynamic range adjoining the bar-shaped efficiency range on a right-hand side thereof; and

wherein the bar-shaped dynamic range is a function of the characteristic accelerator pedal curve based on the accelerator pedal angle and reflects a dynamic driving range; and

wherein the bar-shaped dynamic range is never highlighted and a marker provided for showing a current accelerator pedal angle is set in the bar-shaped dynamic range only when the accelerator pedal angle with respect to the characteristic accelerator pedal curve is in the dynamic range.

11. The driver assistance system according to claim 3, further comprising:

a bar-shaped recuperation range shown on the display adjoining the bar-shaped efficiency range on a left-hand side thereof when in a coasting operation of an internal-combustion engine; and

wherein the bar-shaped recuperation range is shown in a highlighted manner along with the bar-shaped efficiency range in order to indicate generating of energy.

12. The driver assistance system according to claim 9, further comprising:

a bar-shaped recuperation range shown on the display adjoining the bar-shaped efficiency range on a left-hand side thereof when in a coasting operation of an internal-combustion engine; and

wherein the bar-shaped recuperation range is shown in a highlighted manner along with the bar-shaped efficiency range in order to indicate generating of energy.

13. The driver assistance system according to claim 10, further comprising:

a bar-shaped recuperation range shown on the display adjoining the bar-shaped efficiency range on a left-hand side thereof when in a coasting operation of an internal-combustion engine; and

wherein the bar-shaped recuperation range is shown in a highlighted manner along with the bar-shaped efficiency range in order to indicate generating of energy.

14. The driver assistance system according to claim 3, wherein the display includes an additional information field for recommending several economical driving methods, for each of said several economical driving methods at least one symbol and text instruction being successively emitted in the additional information field of the display.

15. The driver assistance system according to claim 13, wherein the display includes an additional information field for recommending several economical driving methods, for each of said several economical driving methods at least one symbol and text instruction being successively emitted in the additional information field of the display.

16. The driver assistance system according to claim 13, wherein the bar-shaped ranges of the display are adapted in shape to a scale of a conventional consumption display, said conventional consumption display being replaced by the bar-shaped ranges providing an interactive efficiency-related display at least when in the defined economical driving mode.