{HEAD ~ a control unit} for setting {TAIL ~ a target motor current} on the basis of at least the steering torque detected by said steering torque sensor 
for setting
{ HEAD ~ a control unit } for setting { TAIL ~ a target motor current } on the basis of at least the steering torque detected by said steering torque sensor
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH