IP Library Granted Patent US 10,173,528
Granted Patent B2
US 10,173,528 · App. 15/704,961 · Granted Jan 8, 2019

Method for correcting a state of charge of a state of charge display

Inventors: Philipp Gromotka (Peine, DE); Emmanuel Dhollande (Sachsenheim, DE)
Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
B60K35/00B60L11/1861B60K2350/106B60K2350/1076B60K2350/901B60K2350/965B60L2240/14B60L2240/62B60L2250/16B60L2250/22B60Y2200/91B60Y2302/03B60Y2400/112
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Quick Facts
Patent No.
US 10,173,528
App. No.
15/704,961
Granted
Jan 8, 2019
Kind
B2
Abstract

A method for correcting a state of charge of a state of charge display of a traction battery of an electrically driven vehicle. The method includes detecting an attentiveness parameter of a driver of the vehicle with respect to the state of charge display, and step correction of the state of charge displayed on the state of charge display if the attentiveness parameter undershoots an attentiveness threshold value.

Claims (20)

1. A method for correcting a displayed state of charge of a state of charge display of a traction battery of an electrically driven vehicle, comprising the following steps;

detecting a current state of charge of the traction battery;

determining that the current state of charge is different than the displayed state of charge;

detecting an attentiveness parameter of a driver of the vehicle with respect to the state of charge display, and

step correcting the displayed state of charge displayed on the state of charge display to the detected current state of charge if the attentiveness parameter is below an attentiveness threshold value.

2. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge comprises displaying the current state of charge as the displayed state of charge in a single step when the attentiveness parameter is below the attentiveness threshold value.

3. The method as claimed in claim 1 , wherein the attentiveness parameter includes at least one of the following sensor values:

viewing direction of the driver, indicating whether the driver is currently looking at the state of charge display;

duration of the viewing direction of the driver, indicating amount of time since the driver last looked at the state of charge display;

acceleration behavior of the vehicle, indicating focus of the driver on surroundings versus the state of charge display;

speed of the vehicle, indicating of the driver on surroundings versus the state of charge display;

occupation of the driver's seat, indicating presence of the driver in the vehicle in order to view the state of charge display; or

geolocation of the vehicle, indicating focus of the driver on surroundings versus the state of charge display.

4. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge is carried out only if a difference between a correct state of charge and the displayed state of charge exceeds a differential threshold value.

5. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge is carried out only if the correct state of charge of the traction battery is below a battery threshold value.

6. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge is carried out only if the correct state of charge is below the displayed state of charge.

7. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge is carried out only if the attentiveness parameter is below the attentiveness threshold value over a defined attentiveness time.

8. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge does not exceed a maximum difference.

9. The method as claimed in claim 1 , wherein the step correcting of the displayed state of charge is carried out only if an interval time from a preceding step correcting of the displayed state of charge is above an interval threshold value.

10. A correction device for correcting a state of charge of a state of charge display of a traction battery of an electrically driven vehicle, comprising a detection module for detecting an attentiveness parameter of a driver of the vehicle with respect to the state of charge display, and a correction module for step correction of the state of charge displayed on the state of charge display if the attentiveness parameter undershoots an attentiveness threshold value, wherein the detection module and the correction module are designed to carry out a method having including the steps of claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2018
From: GROMOTKA, PHILIPP; DHOLLANDE, EMMANUEL
To: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
Reel/Frame 046396/0573 →
Priority Claims (1)
DE 10 2016 117 440 · Sep 16, 2016 · national
Continuity (1)
Related Publication 20180079303A1 · Mar 22, 2018