METHOD AND DEVICE FOR OUTPUTTING DRIVING INFORMATION INDICATING AN ACCELERATION OPTION THAT IS OPTIMAL IN TERMS OF POWER CONSUMPTION IN A MOTOR VEHICLE

• US 20100152956A1
• Filed: 11/11/2009
• Published: 06/17/2010
• Est. Priority Date: 12/16/2008
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: FRAUENKRON, Helge
• Granted Patent: US 9,079,588 B2
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention

Abstract

A method for outputting driving information to indicate a power consumption-optimized driving state to a driver of a motor vehicle, including the following steps of ascertaining a target vehicle acceleration that is optimal in terms of consumption, as a function of at least one current operating state quantity of the vehicle, as well as of at least one tractive-resistance quantity, ascertaining an actual vehicle acceleration, generating the driving information as a function of the ascertained target vehicle acceleration and of the actual vehicle acceleration, and outputting the driving information.

Claims

1. A method for outputting driving information to indicate a power consumption-optimized driving state to a driver of a motor vehicle, the method comprising:

ascertaining a target vehicle acceleration, which is optimal in terms of consumption, as a function of at least one current operating state quantity of the vehicle, and of at least one tractive-resistance quantity;

ascertaining an actual vehicle acceleration;

generating the driving information as a function of the ascertained target vehicle acceleration and of the actual vehicle acceleration; and

outputting the driving information.

2. The method of claim 1, wherein the at least one current operating state quantity includes at least one of a vehicle velocity and an engine speed.

3. The method of claim 1, wherein, through the at least one current operating state quantity, at least one of the following quantities is taken into account:

(i) longitudinal vehicle acceleration, (ii) drive position information, (iii) vehicle weight, and (iv) an indication as to whether the vehicle is operated with a trailer.

4. The method of claim 1, wherein the driving information is output in a way that allows the driver to recognize whether the actual vehicle acceleration is less than or greater than the target vehicle acceleration of the driving state that is optimal in terms of consumption.

5. The method of claim 1, wherein the driving information is weighted or valuated with a weighting factor that differs, in particular, as a function of the drive position.

6. The method of claim 1, wherein the driving information is at least one of optically, haptically, and acoustically output in the motor vehicle.

7. The method of claim 1, wherein the method is applied in a at least one of a steady-state driving operation and in acceleration phases between a first shift point and a second shift point, the first shift point signifying an instant of clutch engagement, and the second shift point signifying an instant of clutch disengagement.

8. A device for outputting driving information to indicate a power consumption-optimized driving state to a driver of a motor vehicle, comprising:

a determination device to ascertain a target vehicle acceleration that is optimal in terms of consumption, as a function of at least one current operating state quantity of the vehicle, and at least one tractive-resistance quantity;

a transducer device to ascertain an actual vehicle acceleration;

a device to generate the driving information as a function of the ascertained target vehicle acceleration and of the actual vehicle acceleration; and

an output device to output the driving information.

9. A motor vehicle, comprising:

a device for outputting driving information to indicate a power consumption-optimized driving state to a driver of a motor vehicle, including;

a determination device to ascertain a target vehicle acceleration that is optimal in terms of consumption, as a function of at least one current operating state quantity of the vehicle, and at least one tractive-resistance quantity;

a transducer device to ascertain an actual vehicle acceleration;

a device to generate the driving information as a function of the ascertained target vehicle acceleration and of the actual vehicle acceleration; and

an output device to output the driving information.

10. A computer readable medium having a computer program, which is executable by a processing unit, comprising:

a program code arrangement having program code for outputting driving information to indicate a power consumption-optimized driving state to a driver of a motor vehicle, by performing the following;

ascertaining a target vehicle acceleration, which is optimal in terms of consumption, as a function of at least one current operating state quantity of the vehicle, and of at least one tractive-resistance quantity;

ascertaining an actual vehicle acceleration;

generating the driving information as a function of the ascertained target vehicle acceleration and of the actual vehicle acceleration; and

outputting the driving information.