A Low Cost Angular Rate Sensor for Automotive Applications in Surface Micromachining Technology

1999 ◽  
pp. 239-250 ◽  
Author(s):  
R. Schellin ◽  
A. Thomae ◽  
M. Lang ◽  
W. Bauer ◽  
J. Mohaupt ◽  
...  
Keyword(s):  
Low Cost ◽  
Angular Rate ◽  
Automotive Applications ◽  
Surface Micromachining ◽  
Angular Rate Sensor ◽  
Rate Sensor

Active Roll Control of Heavy Single Unit Vehicles Employing MEMS Angular Rate Sensors

2007 ◽  
Author(s):  
Samuel F. Asokanthan ◽  
Ye Tian ◽  
Tianfu Wang
Keyword(s):  
Single Unit ◽  
Dynamic Models ◽  
Low Cost ◽  
Angular Rate ◽  
Micro Electro Mechanical System ◽  
Angular Rate Sensor ◽  
Linear Quadratic ◽  
Roll Control ◽  
Active Roll Control ◽  
Rate Sensor

The present paper is concerned with the use of active roll control to improve the roll stability of heavy road-vehicles and the application of Micro-electro-mechanical System (MEMS) angular rate sensors in the feedback monitoring. For this purpose, mathematical models that represent the roll/yaw dynamics for a torsionally rigid Single Unit Vehicle (SUV) is presented. The state-space models that represent the vehicle dynamics are also developed for the purpose of performing numerical simulations. A linear Quadratic Gaussian (LQG) based controller, using Kalman estimator to estimate certain states, is employed to design a full-state active roll control system. A mathematical model that represents the dynamic behavior of a low-cost MEMS gyroscope is derived for the purpose of investigating the suitability of applying this class of angular rate sensor in the roll control of heavy vehicles. Some reliability issues related to MEMS sensors, such as noise and drift, are introduced and included in vehicle dynamic models.

Wire-Electric Gyroscope

2013 ◽  
Author(s):  
Vadym Avrutov
Keyword(s):  
Electric Current ◽  
Low Cost ◽  
Angular Rate ◽  
Good Choice ◽  
Angular Rate Sensor ◽  
Cross Section Area ◽  
Section Area ◽  
New Type ◽  
The Wire ◽  
Rate Sensor

The wire-electric gyroscope (WEG) is a new type of the angular rate sensor. The basic principle of the WEG is based on the hypothesis of invariance of the electric current speed for the same wire (coil). It is similar to the Sagnac effect for the speed of light. The method of angular rate determination is described. The voltage difference between two wire coils with different line coupling can be expressed in applied rotation (angular) rate and velocity of electric current. The scale factor depends on the magnitude of the current, number of the coil turns, the coil’s radius, the cross-section area of the wire and specific (unit) resistance of the wire. WEG can be produced cost-effectively and can be a good choice for low-cost applications.

Tuning fork silicon angular rate sensor with enhanced performance for automotive applications

2000 ◽  
Vol 83 (1-3) ◽  
pp. 80-84 ◽  
Author(s):  
S Sassen ◽  
R Voss ◽  
J Schalk ◽  
E Stenzel ◽  
T Gleissner ◽  
...  
Keyword(s):  
Tuning Fork ◽  
Angular Rate ◽  
Automotive Applications ◽  
Angular Rate Sensor ◽  
Rate Sensor

Flat Quartz Angular Rate Sensor for Automotive Applications

2000 ◽  
Author(s):  
T. Kikuchi ◽  
Y. Osugi ◽  
M. Tani ◽  
T. Enokijima ◽  
S. Yokoi ◽  
...  
Keyword(s):  
Angular Rate ◽  
Automotive Applications ◽  
Angular Rate Sensor ◽  
Rate Sensor

Multi-rate sensor fusion for underwater heading estimation

2014 ◽  
Vol 41 (4) ◽  
pp. 347-350 ◽  
Author(s):  
Manuel Bandala ◽  
Tomás Salgado ◽  
Ramón Chávez
Keyword(s):  
Kalman Filter ◽  
Low Cost ◽  
Angular Rate ◽  
Estimation Method ◽  
High Rate ◽  
Angular Rate Sensor ◽  
Remotely Operated Vehicle ◽  
Content Type ◽  
Heading Estimation ◽  
Rate Sensor

Purpose – This paper presents the results of a heading estimation method for a remotely operated vehicle (ROV). The output rate of commercially available underwater compasses is typically in the order of a few Hz. Heading frequencies of at least 1 KHz are desirable for navigation and control purposes. Design/methodology/approach – The estimation was performed by fusioning the signals of three inertial sensors: the ROV’s own underwater compass (which operates roughly at 10 Hz or less), the ROV’s embedded gyro and an additional angular rate sensor that provides readings from 1 to 3 KHz. The output signal of the additional angular rate sensor is not part of the proposed Kalman filter. Nonetheless a five-point Newton-Cotes closed integration of such signal is fed into the Kalman filter implementation that performs the required heading estimation at 1 KHz or more. Findings – The proposed Kalman filter implementation is a suitable approach to estimate heading position even though the original compass signal rate is significantly slower than the signal required for both assisted and autonomous control. Research limitations/implications – The estimated heading yield good results in both simulation and experimental environments. Originality/value – The method was embedded in a dedicated 16-bit DSP that handles both the acquisition of the three signals and the heading estimation, hence resulting in a very low-cost solution. The embedded solution was tested in the developed submarine and the obtained high-rate heading parameter is now used by the control system of the ROV.

Several Key Technologies to Improve Silicon Microgyro Performance

2007 ◽  
Author(s):  
Dunzhu Xia ◽  
Bailing Zhou ◽  
Shourong Wang
Keyword(s):  
Inertial Sensor ◽  
Low Cost ◽  
Angular Rate ◽  
Middle Level ◽  
Angular Rate Sensor ◽  
Mechanical Working ◽  
Micromechanical Gyroscope ◽  
Key Technologies ◽  
Rate Sensor ◽  
High Level

Silicon micromechanical gyroscope is an extraordinarily important micro inertial sensor, which has characteristics of little size, low cost and batch integrated production with huge market. But it now belongs to low or middle level precision angular rate sensor, so it is becoming a key problem to update this sensitivity to high level. This paper presents several key technologies to improve silicon microgyro performance from the view of micro-electro-mechanical working principle and minor signal detection of microgyro. The simulation and circuit design are well done, which results testify that these improved technologies have certain academic and practical value to update present low or middle level precision angular rate sensor.

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