Inertia measuring unit for motor vehicles as well as control method thereof

Abstract

The invention discloses an inertia measuring unit for motor vehicles, which comprises a storage battery, a main power module, a main controller module, a CAN (controller area network) communication module, a storage module, a sensor power module, a sensor controller module and an MEMS (micro electro mechanical system) sensor, wherein the main power module is connected with the storage battery so as to supply power for the CAN communication module, the storage module and the main controller module, the sensor power module is connected with the storage battery so as to supply power for the sensor controller module, the main controller module is connected with the main power module, the sensor power module, the sensor controller module, the storage module and the CAN communication module andcarries out control and communication, and the MEMS sensor is connected with the sensor controller module and transmits signals. Because the modules of the inertia measuring unit disclosed by the invention are relatively independent, the integral performance of the inertia measuring unit is more reliable, and the upgrading of an independent module does not affect the operation of other modules, thereby ensuring the application reliability of motor vehicles.

Description

technical field [0001] The invention belongs to the technical field of motor vehicle sensor manufacturing, and in particular relates to an inertia measurement unit applied to a motor vehicle and a control method thereof. Background technique [0002] In the field of motor vehicle sensor manufacturing technology, the inertia measurement unit is widely used in various vehicles. As an important auxiliary system on the motor vehicle, it has the function of providing longitudinal acceleration, lateral acceleration and yaw angular acceleration. Longitudinal acceleration and lateral acceleration can detect the magnitude of the lateral and longitudinal acceleration of the motor vehicle and the inclination angle of the motor vehicle. The yaw rate sensor detects the deflection of the car along the vertical axis. The size of the deflection represents the stability of the car. Dangerous conditions of skid or tail flick occur. [0003] At present, most of the inertia measurement units u...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the high processing technology requirements of the inertia measurement unit of the traditional structure, resulting in high cost, large volume, and the use of the inertia measurement unit of the traditional structure with low reliability, there are certain potential safety hazards

[0005] 2. The inertia measurement unit with a traditional structure may cause errors in the judgment of the automotive electronic stability control system due to insufficient accuracy during the movement of the motor vehicle, affecting the control effect of the automotive electronic stability control system, and there are certain potential safety hazards

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