1. hardware preparation: the precision can reach 0. 1 mm by using grinding-level lead screw ... with a good hardware foundation, if the motion platform needs to move to a specific position in space as required, it must use forward and backward kinematics calculation. Inverse kinematics solution is to solve the spatial position of the moving platform to the length of each electric cylinder for linkage control.
The forward kinematics solution is to calculate the spatial position of the launching platform simultaneously through the length of each electric cylinder, so as to realize full closed-loop control. After simultaneous linear equations, Jacobian coefficient matrix is extracted, and Newton iteration method is used to iterate many times, and the positive solution with negligible error can be obtained.
2. Sensor selection: The automobile driving simulator mainly includes signals such as steering wheel, clutch, brake, throttle, sixth gear and handbrake. The sensors used include switch sensor, displacement sensor and angular displacement sensor. The steering wheel adopts angular displacement sensor; Clutch, brake and throttle adopt displacement sensors; Switch sensors are used for ignition, hand braking and gear shifting.
After comprehensive investigation and comparison, TWZ DC displacement sensor, QXJ-BZ-V angular displacement sensor and ITR8 102 opposite photoelectric switch are selected as linear displacement sensor, angular displacement sensor and switch sensor respectively. The resolution of TWZ DC displacement sensor is 10μm, and the response time of ITR8 102 photoelectric switch is 20μs s. ..
Use:
Driving simulator is a kind of teaching equipment for driving training. It uses virtual reality simulation technology to create a virtual driving training environment, and people interact with the virtual environment through the operating parts of the simulator, thus carrying out generalized driving training. Simulators include automobile driving simulator, airplane driving simulator and ship driving simulator.
Any simulation device used for "driving" can be called a driving simulator. Of course, compared with other driving simulators, automobile driving simulators are the most widely used. In modern society, automobile has become a very common means of transportation, because the application of automobile driving simulator is more and more extensive.