Drive-by-wire independent steering system and method thereof
An independent steering, wire-controlled technology, applied to the fluid steering mechanism and other directions, can solve the problems of complex structure and control, affect normal steering, and high complexity, and achieve the effect of increasing steering stability, ensuring safe steering, and simple device structure.
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[0048] figure 1 Shown is an implementation manner of the independent steering system by wire of the present invention, and the independent steering system by wire includes a detection mechanism, an execution mechanism and a control unit;
[0049] The detection mechanism is used to detect the steering wheel angle signal, the current / torque signal of the steering motor, the vehicle speed signal and the front wheel angle signal;
[0050] The executive mechanism includes a left steering motor 3, a right steering motor 11, a wheel steering mechanism, an oil supply system, a left hydraulic cylinder 5, a right hydraulic cylinder 7, an electromagnetic reversing valve 16 and two-way electromagnetic valves 12, 13, 14, 15, The left steering motor 3 is connected with the left front wheel through the left wheel steering mechanism, the left wheel steering mechanism is connected with the piston rod of the left hydraulic cylinder 5, the right steering motor 11 is connected with the right front ...
Embodiment 2
[0063] A vehicle includes the controlled-by-wire independent steering system described in Embodiment 1, so it has the beneficial effects of Embodiment 1, and will not be repeated here.
Embodiment 3
[0065] A method for controlling the independent steering system by wire according to Embodiment 1, comprising the following steps:
[0066] The detection mechanism detects the steering wheel angle signal, the current / torque signal of the steering motor, the vehicle speed signal and the front wheel angle signal, and transmits them to the control unit;
[0067] Described control unit determines the steering transmission ratio of steering motor 3,11 according to steering wheel angle signal, vehicle speed signal and front wheel angle signal, and control unit controls two-way solenoid valve 12,13,14,15 to be open state, and at this moment, left and right sides The side gear and rack 4, 9 are two independent parts, and the control unit controls the steering motor 3, 11 to drive the wheels to realize independent steering;
[0068] The control unit detects whether the steering motors 3, 11 fail according to the current / torque signal of the steering motors, and when the steering motors...
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