|
A Novel Steering Control for Real Autonomous Vehicles via PI Adaptive
6 R0 i# s1 ^, K) p9 S# w7 ADynamic Programming
" @4 }8 S- S+ y" L- L5 y7 K: p1 c
7 N3 u* e9 L* k1 [+ C3 N
/ e' T) w7 U- L4 O& H4 w H3 w8 s5 A! ^# S# l
A novel steering controller for autonomous vehicles is proposed in this paper. For autonomous vehicles, the efficiency
' I) l: S; h1 x, s. v6 D) xis an important indicator, in order to reduce the training cost and improve the real-time performance while the car is running on : n( C: ^0 H e3 P3 n& w3 u
the road, Offline plus online training is proposed in this paper. Offline plus online training is presented to build a model network " `9 g. l+ O" X5 E, R' ~) p
of vehicle steering and correct it in real time. Then we adopt a policy iteration adaptive dynamic programming (ADP) to get the
% {3 ]1 c }& U" D/ voptimal control law and deploy it to autonomous vehicles. Eventually, the performance of the controller was evaluated using ( Z4 h" \9 S* s* j
Matlab simulation. Results verify the feasibility of the theory and show the steering controller is one kind of effective, smooth
7 g- G ~; ]3 a8 bcontroller for autonomous vehicles' system.
+ k% a$ F6 w7 E; @2 c& u& m# `( t: q& A4 X& V" J* b& b
5 u3 M$ p1 }; N/ V
|