Hybrid dynamic modeling and optimization control method for longitudinal dynamic system of intelligent automobile
A longitudinal dynamics and smart car technology, applied in the field of smart car motion control, can solve the problem of system adaptive ability reduction and other issues
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[0065] Depend on figure 1 It can be seen that the hybrid dynamic modeling and optimization control method of the longitudinal dynamics system of the intelligent vehicle described in the present invention is realized according to the following steps:
[0066] Step 1. Establish a vehicle longitudinal dynamics model with drive torque and braking torque as input and longitudinal vehicle speed as output, and perform piecewise affine approximation on the nonlinear part existing in the model;
[0067] Step 2: Based on the hybrid logic dynamic modeling method, establish the longitudinal dynamics of the vehicle with the continuous input of driving torque and braking torque, the discrete input of logic variables reflecting whether the driving mode and braking mode work, and the output of longitudinal vehicle speed System hybrid dynamic model;
[0068] Step 3. Based on the mixed logic dynamic model and predictive control method, the problem of longitudinal motion control of smart cars i...
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