US 11,442,078 B2Granted

Mounting direction determination device and mounting direction determination method of acceleration sensor

AssigneeDaimler AG

InventorTetsuro Koseki

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Abstract

A mounting direction determination device and a mounting direction determination method of an acceleration sensor which can automatically determine the direction of the acceleration sensor mounted on a vehicle. The mounting direction determination device determines a mounting direction, relative to a vehicle, of the acceleration sensor that is capable of detecting a first acceleration in a first direction and a second acceleration in a second direction. A mounting direction determination unit determines the mounting direction by comparing values actually measured by the acceleration sensor with determination reference data. The determination reference data specifies a combination of the detection results of the first acceleration and the second acceleration and the mounting directions.

Claims10

Dependent claims

A mounting direction determination device of an acceleration sensor for determining a mounting direction of the acceleration sensor with respect to a vehicle, the acceleration sensor being capable of respectively detecting a first acceleration in a first direction and a second acceleration in a second direction that intersects the first direction, the mounting direction determination device comprising:

a storage unit for storing determination reference data that specifies a combination of detection results of the first acceleration and the second acceleration and a mounting direction of the acceleration sensor on the vehicle;
and
a mounting direction determination unit for determining a mounting direction of the acceleration sensor with respect to the vehicle by comparing actually measured values of the first acceleration and the second acceleration detected by the acceleration sensor with the determination reference data stored in the storage unit, wherein
the acceleration sensor is mounted such that one of the first direction and the second direction is a vehicle front-back direction, while the other of the first direction and the second direction is a vehicle width direction, and
the mounting direction determination unit determines the mounting direction of the acceleration sensor with respect to the vehicle when only one of the first acceleration and the second acceleration has a non-zero value, whereas the mounting direction determination unit does not determine the mounting direction when both of the first acceleration and the second acceleration have a non-zero value or when both of the first acceleration and the second acceleration have a zero value.

2 more elements

A mounting direction determination method of an acceleration sensor for determining a mounting direction of the acceleration sensor with respect to a vehicle, the acceleration sensor being capable of respectively detecting a first acceleration in a first direction and a second acceleration in a second direction that intersects the first direction, the method comprising the steps of:

previously preparing determination reference data that specifies a combination of detection results of the first acceleration and the second acceleration and mounting directions of the acceleration sensor on the vehicle;
acquiring actually measured values of the first acceleration and the second acceleration detected by the acceleration sensor;
and
determining a mounting direction of the acceleration sensor with respect to the vehicle by comparing the actually measured values of the first acceleration and the second acceleration with the determination reference data, wherein
the acceleration sensor is mounted such that one of the first direction and the second direction is a vehicle front-back direction, while the other of the first direction and the second direction is a vehicle width direction, and
the mounting direction of the acceleration sensor with respect to the vehicle is determined when only one of the first acceleration and the second acceleration has a non-zero value, whereas the mounting direction is not determined when both of the first acceleration and the second acceleration have a non-zero value or when both of the first acceleration and the second acceleration have a zero value.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/767,982Filed 13 Sep 2018
Priority: JP JP2017-22901629 Nov 2017
Published: US 2021/0109124 A115 Apr 2021
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G01P 15/18
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration: in two or more dimensions
G01P 1/023
Housings: for acceleration measuring devices
G01P 21/00
Testing or calibrating of apparatus or devices covered by the preceding groups
G01P
Measuring linear or angular speed, acceleration, deceleration, or shock

Family

US 2021/0109124 A1Pre-grant publication · published 15 Apr 2021
US 11,442,078 B2This patent

From the US filing history. Foreign family members aren’t listed.

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