Automotive Control Systems: For Engine, Driveline, and Vehicle, Second Edition

Indices:
| (.) FL, (.) FR, (.) RL, (.) RR | Wheel indices: front left, front right, rear left, rear right |
| (.) F, (.) R | front and rear axle |
Dimensions of vectors and matrices:
| n | Number of states |
| m | Number of control inputs |
| k | Number of measurements |
Vectors:
| x | ? ? n | State vector |
| u | ? ? m | Input vector |
| y | ? ? k | Measurement vector |
Matrices:
| A | ? ? n,n | System matrix |
| B | ? ? n,m | Input matrix |
| C | ? ? k,n | Output matrix |
| D | ? ? k,m | Throughput matrix |
| K C | feedback matrix (control law) |
| Symbol | Units | Physical variable |
|---|---|---|
| A | ||
| a eng | [ m/s 2] | negative acceleration at engine coasting |
| a N | [ m/s 2] | normal acceleration |
| a X | [ m/s 2] | longitudinal acceleration of CoG |
| a xpot | [ m/s 2] | potential braking acceleration of drivers |
| a Y | [ m/s 2[ | lateral acceleration of CoG |
| a ypot | [ m/s 2] | driver-dependant tolerable lateral acceleration |
| a Z | [ m/s 2] | vertical acceleration of CoG |
| A | relative amount of effective collisions | |
| A B | constant of soot accruement | |
| A Br | [ m 2] | area of wheel brake cylinder |
| A ch | [ m 2] | combustion chamber surface |
| A CYL | [ m 2] | cylinder head surface |
| A eff | [ m 2] | opening area of valve, cross sectional area |
| A L | [ m 2] | max. vehicle cross sectional area |
| A n |