Inertia measuring and control method for preventing vehicle rollover

A control method and inertial measurement technology, which is applied in the direction of measuring devices, brakes, special recording/indicating devices, etc., can solve problems such as the inability to measure vehicle motion parameters and safety factors in real time, the inability to measure vehicle motion parameters, and the inability to actively avoid rollovers, etc. , to achieve the effect of improving efficiency and automation level, reducing system cost and reducing cost

Inactive Publication Date: 2007-10-03
BEIHANG UNIV
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Problems solved by technology

However, this method only uses a mechanical force balance mechanism, which has a complicated structure and high cost.
Cannot measure vehicle motion parameters, and cannot issue control commands
To sum up, the current anti-rollover method has the disadvantage of being unable to measure the motion parameters and safety factors of the vehicle in real time, and cannot actively avoid rollover.

Method used

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  • Inertia measuring and control method for preventing vehicle rollover
  • Inertia measuring and control method for preventing vehicle rollover
  • Inertia measuring and control method for preventing vehicle rollover

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Embodiment Construction

[0024] The devices used in the present invention include Micro Inertial Measurement Units (MIMUs) and conventional speedometers. The MIMU is shown in Figure 1, which mainly includes an inertial sensitive assembly (MISA), a data acquisition and computing microprocessor, and a power supply. The MEMS accelerometer in the axial direction and a MEMS accelerometer in the Y-axis direction are arranged orthogonally to provide the turning angular velocity of the vehicle body and the acceleration information in the X and Y-axis directions; the data acquisition and calculation microprocessor adopts a DSP processor for Data acquisition, motion parameter calculation and generation of control commands; the traditional speed instrument is responsible for providing the vehicle body motion line speed. Concrete implementation steps of the present invention are as shown in Figure 3:

[0025] (1) Firstly, use the vehicle-mounted traditional speedometer (calculate the linear velocity of the vehic...

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Abstract

An inertia measuring and controlling method for preventing the lateral turn-over of car includes such steps as scaling the Z-axis gyroscope to be zero deflection in stationary state, using the rotation speed measured by Z-axis gyroscope and the linear speed measured by traditional speed meter to calculate centrifugal acceleration, using the output of X-axis acceleration meter to calculate the components of gravitational acceleration on X-axis and Z-axis, the inclination, total inertial acceleration and the deflection, dividing the maximal critical inclination by said deflection to obtain the safety coefficient, and judging its value to calculate the control instruction.

Description

technical field [0001] The invention relates to a vehicle anti-rollover inertia measurement and control method, which can independently measure the motion parameters of ground vehicles when turning at high speed, calculate the vehicle anti-rollover safety factor, and automatically perform safety prompts and rear wheel braking operations to ensure vehicle safety Safe driving, can be applied to all road and rail vehicles. Background technique [0002] For more than a hundred years, a car has been considered as a combination of mechanical parts. It was not until the last 20 or 30 years that a car was considered a mechanical device with some electronic controls. With the rapid development of electronic technology, measurement and control technology and computer technology, the content of automotive electronic products is getting higher and higher, and the concept of "ASV (advanced safety vehicle)" is proposed. [0003] The driving of ASV is realized by means of various sensors,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/174G01D3/02
Inventor 房建成李建利张霄陶冶于歌孙科秦杰
Owner BEIHANG UNIV
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