The invention provides a dynamic decoupling method for an active safety integrated control system of a four-wheel drive electric automobile chassis. The dynamic decoupling method is characterized in that the system comprises a driver operating platform, an attitude parameter target value generation unit, an automobile side slip angle observation unit, a yaw velocity sensor, an attitude controller, a decoupling compensating unit, an active front-wheel steering system, a torque distribution controller, a left front wheel, a right front wheel, a left rear-wheel hub motor and a control system thereof, and a right rear-wheel hub motor and a control system thereof. The control method includes that the attitude parameter target value generation unit receives a driver operating signal and calculates an attitude parameter target value; the attitude controller controls the automobile side slip angle and the yaw velocity to dynamically track the target value to form integration of active steering control and direct yawing moment control; the decoupling compensating unit calculates decoupling compensation quantity through inverse operation to reduce mutual interface in the integrated system. The dynamic decoupling method has the advantages that a method combining the integrated control with dynamic decoupling is utilized, and accordingly, control stability of an automobile is improved.
Dynamic decoupling method for active safety integrated control system of four-wheel drive electric automobile chassis
29.04.2015
Patent
Elektronische Ressource
Englisch
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