Switching-type active transverse stable rod device and control method thereof

Abstract

The invention discloses a switching-type active transverse stable rod device and a control method thereof. The adopted active transverse rod mainly comprises a left harmonic gear reducing mechanism, a right harmonic gear reducing mechanism, a left stable semi-rod, a right stable semi-rod, connecting arms of a suspending shelf, a left electromagnetic clutch, a right electromagnetic clutch, an electronic control unit, a dual-output-shaft direct-current motor and the like. When a vehicle steers, the electronic control unit electrifies the electromagnetic clutches to make the electromagnetic clutches combined, the active transverse stable rod is in an 'ON' state, active control over side-inclination of the vehicle is achieved, and the occurrence of vehicle rollover is avoided. When the vehicle runs straightly, the electronic control unit deenergizes the electromagnetic clutches to make the electromagnetic clutches switched off, the active transverse stable rod is in an 'OFF' state, the system energy consumption is lowered, when vehicle wheels at one side of the vehicle suddenly meet a rough road, due to mutual disconnection of the left stable semi-rod and the right stable semi-rod, bouncing of the vehicle wheels at one side does not interfere with the vehicle wheels at the other side, and the riding comfort of the vehicle is improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle active roll control, and in particular relates to a switch-type active lateral stabilizer bar device and a control method thereof. Background technique [0002] Suspension springs with less rigidity are generally used on vehicles to ease the impact of the road surface in order to obtain better ride comfort. However, if the stiffness of the suspension spring is too small, it will cause an excessively large roll angle when the vehicle turns, which will affect the driving safety of the vehicle. In response to this problem, it is generally adopted to install a stabilizer bar on the front suspension or the front and rear suspensions of the vehicle. Its main function is that when the car is turning or driving on a bumpy road, the deformation of the suspension springs on both sides is different, and the stabilizer bar is twisted and deformed, thereby forming a counter moment to control the vehicle roll ...

AI Technical Summary

Problems solved by technology

However, there are different torques output to the left and right stabilizing half rods through the motor and gear reduction mechanism, and it is impossible to accurately control the magnitude of the vehicle's anti-rolling torque by controlling the output torque of the motor

More importantly, the current domestic patents only focus on the active control of vehicle roll from the perspective of mechanical design, lack of control methods corresponding to the designed mechanical structure, and do not comprehensively consider other common working conditions (straight-line driving) at the same time. ) to control the ride comfort of the vehicle by using the active stabilizer bar

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