2results about How to "Improved rollover performance" patented technology

The present application belongs to the technical field of vehicle engineering, and relates to a kind of active steering and differential brake integrated rollover control method, comprising: constructing tractor steering and differential brake integrated dynamics model;Adopt model prediction method to establish controller;Based on road adhesion coefficient setting steering angle and brake torque constraint, the optimal control output is obtained by using quadratic programming to solve constraint optimization problem.The present application introduces the dynamic estimation of road adhesion coefficient in the constraint of front wheel steering angle and trailer yaw moment, which can effectively reduce the tire slip phenomenon caused by insufficient adhesion on low adhesion road and solve the problem that static value cannot adapt to any working condition in real time, at the same time, the model prediction method is used to set the controller, the future state of the vehicle is predicted in advance, and the driving safety is improved, the present application can effectively improve the adaptability of articulated vehicle in low adhesion coefficient road under rollover control, and the integrated method can effectively strengthen the rollover control effect.

The utility model relates to engineering machinery safety protection technical field discloses a bulldozer anti -rollover device, include: first fixed plate, first fixed plate sets up in bulldozer both sides, angle adjusting structure, angle adjusting structure includes first adjusting part and second adjusting part, first adjusting part includes the second limiting frame board of setting in first fixed plate outside, fixed mounting has servo motor on the one side outer wall of second limiting frame board, the inside rotatory mounting of second limiting frame board has the pivot, and the output shaft of servo motor is fixedly connected with the one end of pivot through the shaft coupling, second adjusting part includes the third connecting plate of fixed mounting in first fixed plate one side outer wall, fixed mounting has second connecting plate on the one side outer wall of third connecting plate, reach the purpose of angle adjustment to device, expand the inclination angle of device, carry out the support under a variety of angles to bulldozer, improve the supporting effect of device, improve the anti -rollover ability of device, improve the convenience of device use.