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汽车横摆角速度传感器结构与原理


Inertial Modules / SV C BC P1 IM
Page 5
Inertial Measurement Sensing Elements
Gyro Module Accelerometers Family Concept Applications
Sensing Element Gyro Module Coriolis Force is acting on Oscillating Ring
Inertial Modules
Body & Chassis Electronics SV C BC P1 IM
2005-01-27
Supplying value.
Inertial Measurement Sensing Elements
Gyro Module Accelerometers Family Concept Applications
The new element of Generation 3 is based on a capacitve sensing element.
Inertial Modules / SV C BC P1 IM
Page 3
Sensing Element Gyro Module Standard Packaging for optimized Handling
Inertial Modules / SV C BC P1 IM
Page 2
Inertial Measurement Sensing Elements
Gyro Module Accelerometers Family Concept Applications
Sensing Element Gyro Module Higher Level of Integration in next Generation
Body & Chassis
10,55 mmSOIC源自8ASICASIC functions: controlling the sensing element, amplifying the signals, supervising the correct operation, signal adjustment
Current Sensor Element
Dual Chip Module: New Sensor Element and ASIC in one standard housing
+
ASIC
Body & Chassis
Generation 2
Generation 3
The sensing element of Generation 2 is based on an inductive gyro element.
Inertial Modules / SV C BC P1 IM
Page 4
Sensing Element Gyro Module Functional Principle : Oscillating Ring
Inertial Measurement Sensing Elements
Gyro Module Accelerometers Family Concept Applications
Page 6
Sensing Element Gyro Module MEMS Technology (Details of Sensing Element)
Inertial Measurement Sensing Elements
Gyro Module Accelerometers Family Concept Applications
Oscillating Ring with
decoupled Plate
Electrostatic Drivers
Capacitor 1
Body & Chassis
No Turn Rate applied
[For Animation Click Picture]
Drive Capacitor 2 Control
Inertial Measurement Measurement of Vehicle Chassis Movement
z y
x
Yaw Rate ± 75 °/s Vertical Acceleration ± 1,7 g
Body & Chassis
Pitch Rate ± 75 °/s Longitudinal Acceleration ± 1,7 g
ΩX
Body & Chassis
Turn Rate applied Î Plate is gyrating by Coriolis Force Î ∆ Capacitance can be measured
[For Animation Click Picture]
Inertial Modules / SV C BC P1 IM
Micro-Electro-Mechanical System (MEMS)
Oscillating Ring
Body & Chassis
Plate Electrostatic Driver
Inertial Modules / SV C BC P1 IM
Inertial Measurement Sensing Elements
Gyro Module Accelerometers Family Concept Applications
Capacitive Sensing Element (MEMS Technology)
Ω (°/s)
18,05 mm
Roll Rate ± 300 °/s (± 75°/s) Lateral Acceleration ± 1,7 g
Inertial Modules are measuring turn rate and acceleration of a vehicle chassis.
Each ESP (Electronic Stability Program) system needs the turn rate value of z-axis Ωz and lateral acceleration value.
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