Method for determining an impact intensity

Patent metadata

Field	Value
Publication number	US-10399524-B2
Application number	US-201716080190-A
Country	US
Kind code	B2
Filing date	Feb 22, 2017
Priority date	Apr 4, 2016
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

A method for generating a signal representing an impact intensity including the steps: receiving at least three signals, which represent respectively accelerations in different spatial directions; calculating a direction-independent variable from the three signals; ascertaining an integrated measurand of the direction-independent variable over a time window; generating a signal representing an impact intensity on the basis of the ascertained integrated measurand.

First claim

What is claimed is:

1. A method for a vehicle for generating a signal representing an impact intensity, comprising:
receiving at least three signals, which represent respectively accelerations in different spatial directions;
calculating a direction-independent variable from the three signals;
adapting the direction-independent variable by subtracting a value representing gravitational acceleration from the direction-independent variable;
ascertaining an integrated measurand of the direction-independent variable over a time window; and
generating a signal representing an impact intensity from the ascertained integrated measurand.

2. The method as recited in claim 1 , wherein the three signals are low-pass filtered.

3. The method as recited in claim 1 , wherein the integrated measurand is ascertained continuously.

4. The method as recited in claim 1 , wherein the integrated measurand is compared to a predefined threshold value.

5. The method as recited in claim 1 , wherein a transmitting device is activated for transmitting the signal representing an impact intensity to: (i) an external receiving device, and/or (ii) a mobile terminal.

6. The method as recited in claim 1 , wherein the integrated measurand is ascertained continuously at a discrete-time sampling rate.

7. The method as recited in claim 1 , wherein a transmitting device is triggered based on the comparison to transmit the signal representing the impact intensity to at least one of: an external receiving device, or a mobile terminal.

8. A non-transitory machine-readable storage medium on which is stored a computer program for generating a signal representing an impact intensity, the computer program, when executed by a processor, causing the processor to perform:
receiving at least three signals, which represent respectively accelerations in different spatial directions;
calculating a direction-independent variable from the three signals;
adapting the direction-independent variable by subtracting a value representing gravitational acceleration from the direction-independent variable;
ascertaining an integrated measurand of the direction-independent variable over a time window; and
generating a signal representing an impact intensity from the ascertained integrated measurand.

9. An electronic control unit for generating a signal representing an impact intensity, the electronic control unit designed to:
receive at least three signals, which represent respectively accelerations in different spatial directions;
calculate a direction-independent variable from the three signals;
adapting the direction-independent variable by subtracting a value representing gravitational acceleration from the direction-independent variable;
ascertain an integrated measurand of the direction-independent variable over a time window; and
generate a signal representing an impact intensity from the ascertained integrated measurand.

10. A device, comprising:
an electronic control unit for generating a signal representing an impact intensity, the electronic control unit designed to:
receive at least three signals, which represent respectively accelerations in different spatial directions,
calculate a direction-independent variable from the three signals,
adapting the direction-independent variable by subtracting a value representing gravitational acceleration from the direction-independent variable;
ascertain an integrated measurand of the direction-independent variable over a time window, and
generate a signal representing an impact intensity from the ascertained integrated measurand; and

a triaxial acceleration sensor to detect the accelerations in the three different spatial directions.

11. The device as recited in claim 10 , further comprising:
a transmitting device to transmit the signal representing an impact intensity to: (i) an external receiving device, and/or (ii) a mobile terminal.

12. The device as recited in claim 11 , wherein the electronic control unit, the triaxial acceleration sensor, and the transmitting device are situated together in a common housing.

13. A method for a vehicle for generating a signal representing an impact intensity, comprising:
receiving at least three signals, which represent respectively accelerations in different spatial directions;
adapting at least one of the three signals by subtracting a value representing gravitational acceleration from the at least one of the three signals;
calculating a direction-independent variable from the three signals;
ascertaining an integrated measurand of the direction-independent variable over a time window; and
generating a signal representing an impact intensity from the ascertained integrated measurand.

Assignees

• Bosch Gmbh Robert

Inventors

• Gross Marcus
• Ohl Christian
• Lehr Elvira
• Faisst Hans-Joerg
• Roelleke Michael
• Ladda Josefine
• Schuster Stefan

Classifications

• B60R21/0132 Primary

  responsive to vehicle motion parameters {, e.g. to vehicle longitudinal or transversal deceleration or speed value} · CPC title

• B60R2021/0027

  Post collision measures, e.g. notifying emergency services · CPC title

• G08B25/08

  using communication transmission lines {(G08B13/19658, G08B21/0286, G08B25/016 take precedence)} · CPC title

• G08B25/016

  Personal emergency signalling and security systems (emergency non-personal manually actuated alarm activators G08B25/12) · CPC title

• G08B25/009

  Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range · CPC title