P46.80-A013-78
Example illustration of vehicle with rear axle suspension |
1 | Left rear axle steering control unit | 2 | Right rear axle steering control unit |
Overview
This document contains information on:
Location
Function
Location
The left rear axle steering control unit or right rear axle steering control unit is located in the area of the rear wheel suspension.
Function
Reading in of signals
The rear axle steering control unit primarily receives the following input signals:
Status of circuit 15
Status of engine start OFF
Vehicle speed
Engine speed
Engine running signal
Status of roller dynamometer mode
Control status of rear axle steering request
Toe angle change request
Tie rod force for rear axle steering request
Rear wheel steering position status (right rear axle steering control unit)
Evaluation of input signals
The received input signals are evaluated by the microprocessor integrated in the rear axle steering control unit. The corresponding component parts are actuated after evaluation of the input signals.
Actuation of components
The rear axle steering control unit actuates the integrated actuator motor directly.
Output of signals
The rear axle steering control unit primarily transmits the following output signals:
Rear axle steering status
Steering position signal for rear axle steering (right rear axle steering control unit)
Left toe angle change request (right rear axle steering control unit)
Rear axle steering display request (right rear axle steering control unit)