Nine-axial-sensor-based method for monitoring turning angle of automobile front wheels
A nine-axis sensor and front wheel steering technology, applied in instruments, measuring devices, measuring angles, etc., can solve problems such as difficult to accurately measure steering angle parameters, complicated operation, large errors, etc., to improve vehicle handling and driving stability , Ensure driving safety, avoid the effect of deviation
Active Publication Date: 2018-02-16
GUANGDONG POLYTECHNIC OF IND & COMMERCE
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Problems solved by technology
[0004] At present, the driver cannot obtain the parameters of the front wheel steering angle during driving, and only judges the front wheel steering angle through the nonlinear relationship between the steering wheel angle and the front wheel steering angle and the eyes; to measure the parameters of the front wheel steering angle, a specific It is difficult to accurately measure the steering angle parameters; and it also lacks the function of predicting the changing trend of the front wheel steering angle parameters.
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.
[0024] Such as figure 1 As shown, it is based on the nine-axis sensor car front wheel steering angle monitoring method, including the following steps:
[0025] Step 101 senses the three-dimensional acceleration, three-dimensional angular velocity and three-dimensional geomagnetic intensity of the vehicle body and front wheels through the three-axis accelerometer, three-axis gyroscope and three-axis magnetic induction meter of the nine-axis sensor;
[0026] Step 102 uses the three-dimensional acceleration parameters of the vehicle body, the three-dimensional angular velocity parameters of the vehicle body and the three-dimensional geomagnetic intensity parameters of the vehicle body, and obtains the heading angle of the vehicle body through attitude...
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The invention discloses a nine-axial-sensor-based method for monitoring a turning angle of automobile front wheels. The method comprises: sensing three dimensional accelerations, three dimensional angular speeds and three dimensional terrestrial magnetism intensity of an automobile body and front wheels through a triaxial accelerometer, triaxial gyroscope and triaxial magnetic induction meter, respectively; by using the three dimensional acceleration parameter, the three dimensional angular speed parameter, and the three dimensional terrestrial magnetism intensity of the automobile body, performing calculation according to an attitude algorithm to obtain a travel angle of the automobile body; by using the three dimensional acceleration parameter and the three dimensional angular speed parameter of the front wheels, performing calculation according to the attitude algorithm to obtain a slip angle of the automobile body; by using the three dimensional terrestrial magnetism intensity parameter and three dimensional angular speed parameter of the front wheels, performing calculation according to the attitude algorithm to obtain a travel angle of the front wheels; by using the travel angle parameter of the automobile body, and the slip angle parameter and travel angle parameter of the front wheels, performing calculation according to the attitude algorithm to obtain a steering angleof the front wheels; and performing fusion analysis of the travel angle of the automobile body, and the slip angle and steering angle of the front wheels to obtain the variation trend of the steeringangle of the front wheels.
Description
technical field [0001] The invention relates to a method for monitoring the safe running state of a motor vehicle, in particular to a method for monitoring the steering angle of a front wheel of an automobile based on a nine-axis sensor. Background technique [0002] Motor vehicle operation safety status monitoring technology is the main means to ensure the safe driving of motor vehicles, and it is also the inevitable trend of the development of motor vehicle operation safety detection technology. Use motor vehicle operation safety status monitoring technology to dynamically monitor motor vehicle operation safety status and operating indicators, discover and prevent motor vehicle failures in a timely manner, develop a safety monitoring network system integrating monitoring, control, management and decision-making, and ensure the safe operation of motor vehicles It is of great significance; it is a major social public welfare technical work related to the safety of the countr...
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IPC IPC(8): G01C1/00
CPCG01C1/00
Inventor 潘梦鹞王锋陈小华
Owner GUANGDONG POLYTECHNIC OF IND & COMMERCE