WO2003012372A1 - Anordnung zur erfassung von drehbewegungen mehrerer achsen - Google Patents
Anordnung zur erfassung von drehbewegungen mehrerer achsen Download PDFInfo
- Publication number
- WO2003012372A1 WO2003012372A1 PCT/EP2002/007973 EP0207973W WO03012372A1 WO 2003012372 A1 WO2003012372 A1 WO 2003012372A1 EP 0207973 W EP0207973 W EP 0207973W WO 03012372 A1 WO03012372 A1 WO 03012372A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- sensors
- arrangement according
- rotation rate
- rate
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
Definitions
- the invention relates to an arrangement for detecting yaw rates and accelerations from three orthogonal spatial directions, preferably for use in electronic braking systems for motor vehicles, in particular driving stability regulations.
- Fahrstabilitatsregelungen Electronic Stability Program
- ESP Electronic Stability Program
- the driver measures (changeable quantities and calculates a target yaw rate in a vehicle model. These are essentially the steering angle, the lateral acceleration as well as the vehicle reference speed determined from the turning behavior of the individual vehicle wheels.
- the actual value of the If the actual value of the yaw movement deviates from the calculated target value by a predetermined amount that jeopardizes driving stability, the yaw movement is increased by targeted braking and / or engine intervention permissible values limited.
- German patent application P 19921692.4 (P 9535, Continental Teves) proposes an arrangement for protecting electronic functional units and / or functional groups against disturbances.
- modules with Different sensitivity to disturbances assigned different shields against the disturbances, with two or more shields complementing each other to form a shield with higher efficiency.
- the international application WO 00/50090 AI describes one.
- Sensor module that has at least two sensors that detect the movement of a vehicle and at least one temperature sensor.
- German patent application P 10040511.8 (P 9818, Continental Teves) describes an arrangement for recording yaw rates and / or acceleration data in motor vehicles, in which a plurality of mutually independent, mutually controllable measuring channels are operated with identical but not exactly the same rotation rate sensors.
- the invention has for its object to reduce the space requirement when arranging a plurality of motor vehicle sensors.
- the present invention now proposes an improved arrangement of the sensors, which consists in designing the arrangement in such a way that it does the same for a plurality of rotation rate sensors. includes basic physical effect, but the training forms of the rotation rate sensors differ by at least two mutually different transducer-mechanical operating principles.
- the occurrence of Coriolis forces and / or precession moments on oscillating masses are preferably used as physical basic effects for measuring rotation rates.
- a different converter principle according to the invention exists if the bodies of the rotation rate converters are made from different materials, preferably quartz and silicon.
- transducer principle is understood when there are transducer principles in which different electromechanical design principles result in axially directions having different sensor effects compared to an otherwise identical chip level.
- the latter applies analogously to the acceleration sensors used according to the invention.
- a reduction in the space requirement is advantageously achieved in that the rotation rate sensors urid / or acceleration sensors differ. have sensorially effective axis directions with respect to an otherwise identical chip or wafer level.
- the bodies of the rotation rate converters are made of different materials, preferably quartz or silicon.
- 1 is a schematic representation of spatial coordinates on a vehicle
- Fig. 3 is a schematic representation of sensors with different mechanisms of action
- FIG. 4 is a schematic representation of a sensor arrangement tion according to the invention.
- a rotation rate around Z F is called a yaw rate
- a rotation rate around X F is called a roll rate
- a rotation rate around Y F is called a pitch rate.
- FIG. 2 shows the representation of circuit boards in a room whose coordinates X, Y, Z are aligned parallel to the vehicle coordinates X F , Y F , Z F , so that planes XY, ZY, ZX are formed, into which circuit boards 2, 3, 4 can be aligned within sensory devices for detecting yaw rates and accelerations. It is often technically necessary to close the board to a given level! accept.
- the invention proposes to select and combine rotation rate sensors and acceleration sensors with different effective axes with respect to the same chip or wafer level so that all of these sensor components on the board with their chip or wafer level 2 ', 3', 4 'are aligned parallel to the carrier board 2, 3, 4.
- six sensor components are shown in this parallel orientation. They symbolize the yaw rate sensors for yaw,
- Roll and pitch rate characterized by (dotted) ⁇ , ⁇ , ⁇ and the accelerations in the three axis directions a x , a y ,
- 3 shows different working mechanisms that can be used according to the invention using the example of rotation rate sensors.
- This description can also be reinterpreted in the sense of Invention of differently usable mechanisms of action of acceleration sensors, because a rotation rate sensor according to physical principles preferred according to the invention contains a mechanism of oscillating masses, to which acceleration sensors that are internally aligned to the chip level are coupled. The description is therefore limited to the mechanisms of the rotation rate sensors that can be used according to the invention.
- 3a, 3b, 3c, 3d use relative coordinates X ', Y', Z ', which are aligned parallel to the coordinates X, Y, Z according to FIG. 2.
- 3a shows masses 5, 6 produced by micromechanics, suspended in the chip or wafer plane 7, which oscillate in the X ′ direction by means of a micromechanical drive via electrical or magnetic force effects F D.
- plane 7 rotates about axis Z '
- Coriolis forces or precession moments F c arise which are measured by internal micromechanical acceleration sensors.
- the mechanics of these internal acceleration sensors must be aligned so that deflections in the Y 'direction can be measured. It is then possible to measure a rotation rate with the axis direction perpendicular to the chip or wafer plane.
- Fig. 3b shows a micromechanical vibratory structure as in Fig. 3a ⁇ with the difference that the plane 7 rotates about the Y 'axis.
- the forces F c or the associated accelerations now have an effective direction in the Z 'axis and the mechanics of the internal acceleration sensors must be aligned accordingly to measure accelerations in the Z' direction. Then it is possible to measure a rotation rate horizontally to the chip or wafer level.
- the use of these effects is not tied to the material of the sensors, however With the material silicon, different types of micromechanical sensor elements can be produced under the aspect of the various available micromachining techniques known per se.
- 3c and 3d show oscillating tuning fork arrangements in the chip or wafer plane X'Y '. Such arrangements are known per se, in particular from the material quartz, but can be combined very well with embodiments of the variant FIG. 3a as a preferred arrangement according to the invention.
- FIG. 3d shows a so-called double fork.
- the principle of operation corresponds to that of FIG. 3c with the difference that oscillatory excitation F D and sensory effect F c occur on different tines.
- Fig. 4 shows a sensor arrangement according to the invention in a schematic representation as a structurally complete measuring unit (sensor cluster).
- the measuring unit consists of an all-encapsulating housing 11 with two connector units B1, B2 and bus connections 12, 13 supplied by internal bus drivers to associated peripheral elements 14, not shown separately, on the same board level 10 in the inventive sensors for yaw rate 15, Pitch rate 16, roll rate 18 and sensors for acceleration in the axial directions Z with reference symbol 18, Y with reference symbol 19 and X with reference symbol 20.
- the sensor signals are an integrated circuit 21 which interacts with a specific software 22 in order to appropriately calculate, correct, filter and weight the sensor signals according to intrinsic safety criteria.
- bus 13 being, for example, a bus with a relatively slow data rate (eg CAN) .
- Bus 12 represents a very fast direct data connection to a peripheral actuator unit, which requires the sensory information for the immediate, short-term triggering of a safety function (eg airbag).
- Roll rate sensor 17 realized by the sensor according to FIG. 3c
- Roll rate sensor 17 implemented by the sensor according to FIG. 3b
- Pitch rate sensor 16 realized by sensor according to FIG. 3c
- Roll rate sensor 17 implemented by sensor according to FIG. 3c
- Roll rate sensor 17 realized by sensor according to FIG. 3d
- two rotation rate sensors for two orthogonal spatial directions are integrated in the same chip or wafer level as a combination to form a component. This can be done, for example, by using the silicon micromaching method and MEMS (Micro Electronic Mechanical Systems) technologies.
- three rotation rate sensors for three orthogonal spatial directions integrated as a combination to a packaged component on the same substrate, the same chip or wafer or on the same chip level.
- two or more acceleration sensors for two or more orthogonal spatial directions are integrated in combination with a packaged component, the same substrate, the same chip or wafer or on the same chip level.
- two or more acceleration sensors and two or more rotation rate sensors for two or more orthogonal spatial directions are integrated as a combination to form a packaged component on the same substrate, the same chip or wafer or on the same chip level.
- housings of the housed components are designed as electrical shielding housings or shielding cages.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Gyroscopes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10293406T DE10293406D2 (de) | 2001-07-27 | 2002-07-18 | Anordnung zur Erfassung von Drehbewegungen mehrerer Achsen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10136480 | 2001-07-27 | ||
DE10136480.6 | 2001-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003012372A1 true WO2003012372A1 (de) | 2003-02-13 |
Family
ID=7693210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/007973 WO2003012372A1 (de) | 2001-07-27 | 2002-07-18 | Anordnung zur erfassung von drehbewegungen mehrerer achsen |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10293406D2 (de) |
WO (1) | WO2003012372A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4891984A (en) * | 1985-10-08 | 1990-01-09 | Nippondenso Co., Ltd. | Acceleration detecting apparatus formed by semiconductor |
US5313835A (en) * | 1991-12-19 | 1994-05-24 | Motorola, Inc. | Integrated monolithic gyroscopes/accelerometers with logic circuits |
-
2002
- 2002-07-18 WO PCT/EP2002/007973 patent/WO2003012372A1/de not_active Application Discontinuation
- 2002-07-18 DE DE10293406T patent/DE10293406D2/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4891984A (en) * | 1985-10-08 | 1990-01-09 | Nippondenso Co., Ltd. | Acceleration detecting apparatus formed by semiconductor |
US5313835A (en) * | 1991-12-19 | 1994-05-24 | Motorola, Inc. | Integrated monolithic gyroscopes/accelerometers with logic circuits |
Non-Patent Citations (1)
Title |
---|
JOST K: "YAW SENSING", AUTOMOTIVE ENGINEERING, SOCIETY OF AUTOMOTIVE ENGINEERS. WARRENDALE, US, vol. 103, no. 9, 1 September 1995 (1995-09-01), pages 61 - 63, XP000526647, ISSN: 0098-2571 * |
Also Published As
Publication number | Publication date |
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DE10293406D2 (de) | 2004-05-27 |
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