Each profile allows the installer to reduce acceleration and deceleration rates, throttle and switch values
and maximum torque.
Set pump driveability profiles at 2A30
h
and 2A31
h
Power steer configuration
General
Power steering can be provided using:
• Contactor. Map the power steer contactor drive object to an analogue output.
• Pump motor controller. Configure pump to provide power steering. Power steer demand is added to
pump demand.
• Dedicated motor controller. Map power steer application motor object to motor control slave.
Power steer motors always run in speed mode. Ensure the motor slave is also configured for speed mode in 6060h.
The power steer can be triggered by a number of events:
• Vehicle moving
• FS1 switch activating
• Direction selected.
• Seat switch activating
• Footbrake activating
CAUTION: The power steering function will always attempt to execute, even if the line contactor is
open due to a fault condition. This is to ensure power steering continues to operate at all times.
Set the power steer motor speed, acceleration and deceleration at 2B01
h
. This is not required if the
power steer motor is operated by a contactor.
Variable Assist Power Steering
Dragon8 supports a variable assist power steering algorithm which can be used to reduce the power
steering speed as vehicle traction speed increases to a user configurable level. Set the reduction factor
and traction speed in 2B02
h
. This allows power steering effort to be reduced as vehicle speed increases to
prevent steering becoming too light.
Vehicle features and functions
Ensure you have completed the CANopen network setup, Motor Characterization, I/O Configuration
and Vehicle Performance Configuration processes described above.
Contactors
Ensure voltage control has been selected (see ‘Analogue’ on
page 53).
To configure any contactor:
• Set pull-in voltage, pull-in time and hold-in voltage at 2D00
h
To Next Page
Loading...
