US 12,492,897 B2Granted

Inertial force sensor

AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho

InventorsTeruhisa Akashi, Shota Harada

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Abstract

An inertial force sensor may comprise: a base; a first block including an inclined surface that is inclined with respect to a base surface; a second block including an inclined surface that is inclined with respect to the base surface; a third block including an inclined surface that is inclined with respect to the base surface; a fourth block including an inclined surface that is inclined with respect to the base surface; and a connector configured to physically connect the first, second, third, and fourth blocks. In this inertial force sensor, the first and second blocks are aligned along a first direction parallel to the base surface with their inclined surfaces both facing inward or outward, and the third and fourth blocks are aligned along a second direction parallel to the base surface and orthogonal to the first direction with their inclined surfaces both facing inward or outward.

Claims20

Dependent claims

An inertial force sensor comprising:

a base;
a first block mounted on the base and including a bottom surface that is substantially parallel to a surface of the base, a rear surface that is substantially perpendicular to the surface of the base, and an inclined surface that is inclined with respect to the surface of the base and connects the bottom surface and the rear surface;
a second block mounted on the base and including a bottom surface that is substantially parallel to the surface of the base, a rear surface that is substantially perpendicular to the surface of the base, and an inclined surface that is inclined with respect to the surface of the base and connects the bottom surface and the rear surface;
a third block mounted on the base and including a bottom surface that is substantially parallel to the surface of the base, a rear surface that is substantially perpendicular to the surface of the base, and an inclined surface that is inclined with respect to the surface of the base and connects the bottom surface and the rear surface;
a fourth block mounted on the base and including a bottom surface that is substantially parallel to the surface of the base, a rear surface that is substantially perpendicular to the surface of the base, and an inclined surface that is inclined with respect to the surface of the base and connects the bottom surface and the rear surface;
a first single-axis inertial force sensor arranged on the inclined surface of the first block;
a second single-axis inertial force sensor arranged on the inclined surface of the second block;
a third single-axis inertial force sensor arranged on the inclined surface of the third block;
a fourth single-axis inertial force sensor arranged on the inclined surface of the fourth block;
a connector configured to physically connect the first, second, third, and fourth blocks;
and
a circuit arithmetic processing and output module configured to execute an arithmetic algorithm that processes an output from each of the single-axis inertial force sensors and an output algorithm that outputs multiple-axis inertial force obtained by the arithmetic algorithm,
wherein:
the first and second blocks are aligned along a first direction parallel to the surface of the base with their inclined surfaces both facing inward toward a center of the surface of the base or both facing outward toward peripherals of the surface of the base, and
the third and fourth blocks are aligned along a second direction parallel to the surface of the base and orthogonal to the first direction with their inclined surfaces both facing inward toward the center of the surface of the base or both facing outward toward peripherals of the surface of the base.

12 more elements

An inertial force sensor comprising:

a base;
a first block mounted on the base and including an inclined surface that is inclined with respect to a surface of the base and a recess defined on a surface of the first block other than the inclined surface;
a second block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the second block other than the inclined surface;
a third block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the third block other than the inclined surface;
a fourth block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the fourth block other than the inclined surface;
a first single-axis inertial force sensor arranged on the inclined surface of the first block;
a second single-axis inertial force sensor arranged on the inclined surface of the second block;
a third single-axis inertial force sensor arranged on the inclined surface of the third block;
a fourth single-axis inertial force sensor arranged on the inclined surface of the fourth block;
a connector including projections configured to fit the recesses of the first, second, third, and fourth blocks and configured to physically connect the first, second, third, and fourth blocks;
and
a circuit arithmetic processing and output module configured to execute an arithmetic algorithm that processes an output from each of the single-axis inertial force sensors and an output algorithm that outputs multiple-axis inertial force obtained by the arithmetic algorithm,
wherein:
the first and second blocks are aligned along a first direction parallel to the surface of the base with their inclined surfaces both facing inward toward a center of the surface of the base or both facing outward toward peripherals of the surface of the base, and
the third and fourth blocks are aligned along a second direction parallel to the surface of the base and orthogonal to the first direction with their inclined surfaces both facing inward toward the center of the surface of the base or both facing outward toward peripherals of the surface of the base.

12 more elements

An inertial force sensor comprising:

a base;
a first block mounted on the base and including an inclined surface that is inclined with respect to a surface of the base, and a recess and a reference projection arranged on a surface of the first block other than the inclined surface;
a second block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the second block other than the inclined surface;
a third block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the third block other than the inclined surface;
a fourth block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the fourth block other than the inclined surface;
a first single-axis inertial force sensor arranged on the inclined surface of the first block;
a second single-axis inertial force sensor arranged on the inclined surface of the second block;
a third single-axis inertial force sensor arranged on the inclined surface of the third block;
a fourth single-axis inertial force sensor arranged on the inclined surface of the fourth block;
a connector including projections configured to fit the recesses of two of the first, second, third, and fourth blocks and configured to physically connect the blocks;
and
a circuit arithmetic processing and output module configured to execute an arithmetic algorithm that processes an output from each of the single-axis inertial force sensors and an output algorithm that outputs multiple-axis inertial force obtained by the arithmetic algorithm,
wherein:
the first and second blocks are aligned along a first direction parallel to the surface of the base with their inclined surfaces both facing inward toward a center of the surface of the base, and
the third and fourth blocks are aligned along a second direction parallel to the surface of the base and orthogonal to the first direction with their inclined surfaces both facing inward toward the center of the surface of the base.

12 more elements

An inertial force sensor comprising:

a base;
a first block mounted on the base and including an inclined surface that is inclined with respect to a surface of the base and a metal pad arranged on a surface of the first block other than the inclined surface;
a second block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the second block other than the inclined surface;
a third block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the third block other than the inclined surface;
a fourth block mounted on the base and including an inclined surface that is inclined with respect to the surface of the base and a recess defined on a surface of the fourth block other than the inclined surface;
a first single-axis inertial force sensor arranged on the inclined surface of the first block;
a second single-axis inertial force sensor arranged on the inclined surface of the second block;
a third single-axis inertial force sensor arranged on the inclined surface of the third block;
a fourth single-axis inertial force sensor arranged on the inclined surface of the fourth block;
a connector including metal connection pads welded to the metal pad of each block and configured to physically connect the first, second, third, and fourth blocks;
and
a circuit arithmetic processing and output module configured to execute an arithmetic algorithm that processes an output from each of the single-axis inertial force sensors and an output algorithm that outputs multiple-axis inertial force obtained by the arithmetic algorithm,
wherein:
the first and second blocks are aligned along a first direction parallel to the surface of the base with their inclined surfaces both facing inward toward a center of the surface of the base, and
the third and fourth blocks are aligned along a second direction parallel to the surface of the base and orthogonal to the first direction with their inclined surfaces both facing inward toward the center of the surface of the base.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/170,732Filed 17 Feb 2023
Priority: JP 2022-04896324 Mar 2022
Published: US 2023/0324174 A112 Oct 2023
Granted: 9 Dec 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G01C 19/065
Rotors: means for measuring or controlling of rotors' angular velocity
G01C 19/32
Details: indicating or recording means specially adapted for rotary gyroscopes
G01C 19/5776
Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces: signal processing not specific to any…
G01C 19/5783
Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces: mountings or housings not specific to…