公开(公告)号：US11834054B2

公开(公告)日：2023-12-05

申请号：US17470962

申请日：2021-09-09

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS, INC. ,  STMicroelectronics (Grand Ouest) SAS

Inventor： Nicola Matteo Palella ,  Leonardo Colombo ,  Andrea Donadel ,  Roberto Mura ,  Mahaveer Jain ,  Joëlle Philippe

IPC: B60W40/11 ,  B60W40/101 ,  B60W40/112 ,  B60W40/114 ,  G01S19/47

CPC classification number: B60W40/101 ,  B60W40/11 ,  B60W40/112 ,  B60W40/114 ,  G01S19/47 ,  B60W2520/28

Abstract: A system includes inertial sensors and a GPS. The system generates a first estimated vehicle velocity based on motion data and positioning data, generates a second estimated vehicle velocity based on the processed motion data and the first estimated vehicle velocity, and generates fused datasets indicative of position, velocity and attitude of a vehicle based on the processed motion data, the positioning data and the second estimated vehicle velocity. The generating the second estimated vehicle velocity includes: filtering the motion data, transforming the filtered motion data in a frequency domain based on the first estimated vehicle velocity, generating spectral power density signals, generating an estimated wheel angular frequency and an estimated wheel size based on the spectral power density signals, and generating the second estimated vehicle velocity as a function of the estimated wheel angular frequency and the estimated wheel size.

公开(公告)号：US20180274941A1

公开(公告)日：2018-09-27

申请号：US15919882

申请日：2018-03-13

Applicant: STMicroelectronics S.r.l.

Inventor： Matteo Quartiroli ,  Alessandro Mecchia ,  Paolo Pesenti ,  Stefano Facchinetti ,  Andrea Donadel

IPC: G01C25/00 ,  G01C19/5776

CPC classification number: G01C25/005 ,  G01C19/5776

Abstract: A demodulator for demodulating the in-phase component of an input signal which is in-phase and quadrature modulated. The demodulator includes a register storing a phase calibration value and a temperature sensor that performs a plurality of temperature sensings. A compensating stage generates for each temperature sensed a corresponding first sample on the basis of the difference between the sensed temperature and a calibration temperature and a compensation function indicative of a relationship existing between the phase of the input signal and the temperature. A combination stage generates a plurality of second samples, each second sample being a function of the phase calibration value and a corresponding first sample. A generating stage generates a demodulating signal having a phase which depends on the second samples and a demodulating stage demodulates the input signal by means of the demodulating signal.

公开(公告)号：US09784581B2

公开(公告)日：2017-10-10

申请号：US14151426

申请日：2014-01-09

Applicant: STMicroelectronics S.r.l.

Inventor： Andrea Donadel ,  Davide Magnoni ,  Marco Garbarino

IPC: G01C19/5776 ,  G01C19/5726

CPC classification number: G01C19/5776 ,  G01C19/5726

Abstract: A gyroscope includes: a mass, which is movable with respect to a supporting body; a driving loop for keeping the mass in oscillation according to a driving axis; a reading device, which supplying an output signal indicating an angular speed of the body; and a compensation device, for attenuating spurious signal components in quadrature with respect to a velocity of oscillation of the mass. The reading device includes an amplifier, which supplies a transduction signal indicating a position of the mass according to a sensing axis. The compensation device forms a control loop with the amplifier, extracts from the transduction signal an error signal representing quadrature components in the transduction signal, and supplies to the amplifier a compensation signal such as to attenuate the error signal.

公开(公告)号：US20130031950A1

公开(公告)日：2013-02-07

申请号：US13648215

申请日：2012-10-09

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Andrea Donadel ,  Tommaso Ungaretti ,  Carlo Caminada ,  Luciano Prandi

IPC: G01C25/00

CPC classification number: G01C19/5776

Abstract: A microelectromechanical gyroscope having a supporting structure; a mass capacitively coupled to the supporting structure and movable with a first degree of freedom and a second degree of freedom, in response to rotations of the supporting structure about an axis; driving components, for keeping the mass in oscillation according to the first degree of freedom; a read interface for detecting transduction signals indicating the capacitive coupling between the mass and the supporting structure; and capacitive compensation modules for modifying the capacitive coupling between the mass and the supporting structure. Calibration components detect systematic errors from the transduction signals and modify the capacitive compensation modules as a function of the transduction signals so as to attenuate the systematic errors.

Abstract translation: 一种具有支撑结构的微电子陀螺仪; 电容耦合到所述支撑结构并且响应于所述支撑结构围绕轴的旋转以第一自由度和第二自由度移动的质量; 驱动部件，用于根据第一自由度保持质量摆动; 用于检测表示所述质量块和所述支撑结构之间的电容耦合的转导信号的读取界面; 以及用于修改质量块和支撑结构之间的电容耦合的电容补偿模块。 校准组件检测来自转导信号的系统误差，并修改电容补偿模块作为转导信号的函数，以便衰减系统误差。

公开(公告)号：US11199422B2

公开(公告)日：2021-12-14

申请号：US17125599

申请日：2020-12-17

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Matteo Quartiroli ,  Alessandro Mecchia ,  Paolo Pesenti ,  Stefano Facchinetti ,  Andrea Donadel

IPC: G01C25/00 ,  G01C19/5776 ,  H04L27/22

Abstract: A demodulator for demodulating the in-phase component of an input signal which is in-phase and quadrature modulated. The demodulator includes a register storing a phase calibration value and a temperature sensor that performs a plurality of temperature sensings. A compensating stage generates for each temperature sensed a corresponding first sample on the basis of the difference between the sensed temperature and a calibration temperature and a compensation function indicative of a relationship existing between the phase of the input signal and the temperature. A combination stage generates a plurality of second samples, each second sample being a function of the phase calibration value and a corresponding first sample. A generating stage generates a demodulating signal having a phase which depends on the second samples and a demodulating stage demodulates the input signal by means of the demodulating signal.

公开(公告)号：US10900805B2

公开(公告)日：2021-01-26

申请号：US15919882

申请日：2018-03-13

Applicant: STMicroelectronics S.r.l.

Inventor： Matteo Quartiroli ,  Alessandro Mecchia ,  Paolo Pesenti ,  Stefano Facchinetti ,  Andrea Donadel

IPC: G01C25/00 ,  G01C19/5776 ,  H04L27/22

Abstract: A demodulator for demodulating the in-phase component of an input signal which is in-phase and quadrature modulated. The demodulator includes a register storing a phase calibration value and a temperature sensor that performs a plurality of temperature sensings. A compensating stage generates for each temperature sensed a corresponding first sample on the basis of the difference between the sensed temperature and a calibration temperature and a compensation function indicative of a relationship existing between the phase of the input signal and the temperature. A combination stage generates a plurality of second samples, each second sample being a function of the phase calibration value and a corresponding first sample. A generating stage generates a demodulating signal having a phase which depends on the second samples and a demodulating stage demodulates the input signal by means of the demodulating signal.

公开(公告)号：US10480944B2

公开(公告)日：2019-11-19

申请号：US15707707

申请日：2017-09-18

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Andrea Donadel ,  Davide Magnoni ,  Marco Garbarino

IPC: G01C19/5776 ,  G01C19/5726

Abstract: A gyroscope includes: a mass, which is movable with respect to a supporting body; a driving loop for keeping the mass in oscillation according to a driving axis; a reading device, which supplying an output signal indicating an angular speed of the body; and a compensation device, for attenuating spurious signal components in quadrature with respect to a velocity of oscillation of the mass. The reading device includes an amplifier, which supplies a transduction signal indicating a position of the mass according to a sensing axis. The compensation device forms a control loop with the amplifier, extracts from the transduction signal an error signal representing quadrature components in the transduction signal, and supplies to the amplifier a compensation signal such as to attenuate the error signal.

公开(公告)号：US20130033274A1

公开(公告)日：2013-02-07

申请号：US13648218

申请日：2012-10-09

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Andrea Donadel ,  Tommaso Ungaretti ,  Andrea Visconti ,  Carlo Caminada

IPC: G01B7/14 ,  G01R27/26

CPC classification number: G01C19/5712 ,  G01C19/5719

Abstract: A microelectromechanical sensor includes a supporting structure and a sensing mass, which is elastically coupled to the supporting structure, is movable with respect thereto with one degree of freedom in response to movements according to an axis and is coupled to the supporting structure through a capacitive coupling. A sensing device senses, on terminals of the capacitive coupling, transduction signals indicative of displacements of the first sensing mass according to the degree of freedom. The sensing device includes at least one first reading chain, having first operative parameters, one second reading chain, having second operative parameters different from the first operative parameters, and one selective electrical connection structure that couples the first reading chain and the second reading chain to the first terminals.

Abstract translation: 微机电传感器包括支撑结构和弹性耦合到支撑结构的感测块，其响应于根据轴线的运动而具有相对于其自由度移动并通过电容耦合耦合到支撑结构 。 感测装置在电容耦合的端子上感测到根据自由度指示第一感测质量的位移的转导信号。 感测装置包括至少一个第一读取链，其具有第一操作参数，一个第二读取链，具有与第一操作参数不同的第二操作参数，以及将第一阅读链和第二阅读链耦合到一个选择性电连接结构 第一个终端。

公开(公告)号：US09448071B2

公开(公告)日：2016-09-20

申请号：US13799243

申请日：2013-03-13

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Garbarino ,  Andrea Donadel ,  Davide Magnoni ,  Carlo Valzasina

IPC: G01C19/56 ,  G01C19/5762 ,  G01C19/5726

CPC classification number: G01C19/5762 ,  G01C19/5726

Abstract: A microelectromechanical device includes: a body; a movable mass, elastically coupled to the body and oscillatable with respect to the body according to a degree of freedom; a frequency detector, configured to detect a current oscillation frequency of the movable mass; and a forcing stage, capacitively coupled to the movable mass and configured to provide energy to the movable mass through forcing signals having a forcing frequency equal to the current oscillation frequency detected by the frequency detector, at least in a first transient operating condition.

Abstract translation: 微机电装置包括：主体; 弹性联接到所述主体并且相对于所述主体可根据自由度而可振动的可动质量块; 频率检测器，被配置为检测所述可移动质量块的当前振荡频率; 以及强制级，其电容耦合到所述可移动质量块，并且被配置为至少在第一瞬态操作条件下通过强制具有等于由所述频率检测器检测到的当前振荡频率的强制频率的信号向所述可移动质量块提供能量。

公开(公告)号：US20160109237A1

公开(公告)日：2016-04-21

申请号：US14985071

申请日：2015-12-30

Applicant: STMicroelectronics S.R.L.

Inventor： Marco Garbarino ,  Andrea Donadel ,  Davide Magnoni ,  Carlo Valzasina

IPC: G01C19/5762 ,  G01C19/5726

CPC classification number: G01C19/5762 ,  G01C19/5726

Abstract: A microelectromechanical device includes: a body; a movable mass, elastically coupled to the body and oscillatable with respect to the body according to a degree of freedom; a frequency detector, configured to detect a current oscillation frequency of the movable mass; and a forcing stage, capacitively coupled to the movable mass and configured to provide energy to the movable mass through forcing signals having a forcing frequency equal to the current oscillation frequency detected by the frequency detector, at least in a first transient operating condition.

Abstract translation: 微机电装置包括：主体; 弹性联接到所述主体并且相对于所述主体可根据自由度而可振动的可动质量块; 频率检测器，被配置为检测所述可移动质量块的当前振荡频率; 以及强制级，其电容耦合到所述可移动质量块，并且被配置为至少在第一瞬态操作条件下通过强制具有等于由所述频率检测器检测到的当前振荡频率的强制频率的信号向所述可移动质量块提供能量。