The invention discloses a drive-by-wire system with redundancy safety, which is applied to engineering machinery and is characterized by comprising a redundancy steering module, a redundancy braking module and a control module, the redundant steering module is used for limiting the number of turns of a steering wheel of the vehicle through a limiting unit and carrying out simulation feedback on road feel by arranging a resistance feedback unit; and the redundant braking module is used for carrying out three-in-one combined braking of electric braking, hydraulic service braking and parking braking on a braking system of the vehicle. The device is compact in structure, safe, reliable and convenient to control, steering limiting and motor resistance torque increasing are adopted, and the steering performance of the drive-by-wire chassis can be guaranteed; meanwhile, a redundant design of an angle sensor and a displacement sensor of the steering oil cylinder is adopted, so that the steering safety is ensured; the safety redundancy design of service braking, parking braking and electric braking is adopted, and the safety of service braking and parking braking is guaranteed; and the driving safety of the drive-by-wire chassis is ensured.
本发明公开了一种具备冗余安全的线控系统,应用于工程机械,其特征在于,包括:冗余转向模块、冗余制动模块和控制模块;冗余转向模块,用于通过限位单元对车辆的方向盘的转到圈数进行限定以及通过设置阻力反馈单元对路感进行模拟反馈;冗余制动模块,用于对车辆的制动系统进行电制动、液压行车制动、驻车制动三位一体联合制动。本发明结构紧凑,安全可靠,控制便捷,采用了转向限位和电机阻力增扭,可以保证在线控底盘的转向性能;同时采用角度传感器和转向油缸的位移传感器冗余设计,保证了转向安全性;采用行车制动和驻车制动和电制动的安全冗余设计,保证了行车和驻车制动的安全性;保证线控底盘的行驶安全性。
Drive-by-wire system with redundancy security and control method
一种具备冗余安全的线控系统及控制方法
2025-03-04
Patent
Electronic Resource
Chinese
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