Danfoss PVED-CLS User Manual

20 | © Danfoss | August 2018 AQ00000211
ENGINEERING TOMORROW
3.3 STEERING WHEEL STATE MACHINE
Figure shows the steering wheel algorithm state machine.
The entry point in below state machine is after the successful OFF road safety checks. Based on the EH steering
disengage method parameter P3254 (SASA or IMD), the further transition of states is determined for steering with
SASA or steering with IMD.
In Steering wheel program 1 – 5, the EH-Valve is active and the PVED-CLS behavior can be configured individually.
Find additional information on how to setup the programs in chapter 10.
Entry
Poi nt
Entry
Poi nt
OFF-Roa d
non-
reac ti on
steering
with SASA
OFF-Road non-reaction steering
Output State
EH Val v e : OFF
Cu t-of f V alv e: ON
Operation Status message
Op er ati o n st a tu s: OFF-Road non-re a ct io n
Lo ckout f or EH-St eerin g funct ionality: EH-Steering functionality
allowed
Lockout for ste ering device changes: Con trolled by P3250 and
Vehicle speed
Lockout for Program changes: Controlled by P3251 and Veh icle
speed
Steering wheel algorithms are not executed
MMI request for
Steering Program other than
OFF-Road reaction
AND
PRG _CHANGE_EN
MMI request for OFF-Ro ad
Reaction steering
MMI request for
Steering Program other than
OFF-Road non-re a ct io n
AND
PRG _CHANGE_EN
MMI request for
OFF-Ro ad
Non R eactio n steering
MMI request
fo r S T W Pr og ra m 1 -5
Entry
Poi nt
Entry
Poi nt
STW P ro gram 1
STW P ro gram 2
STW P ro gram 3
STW P ro gram 4
STW P ro gram 5
MMI request for STW Program 1
MMI request for
S teer ing Pr ogram c hange
AND
PRG _CHANGE_EN
MMI request for STW Program 2
MMI request for
S teer ing Pr ogram c hange
AND
PRG _CHANGE_EN
MMI request for
S T W P ro gr a m 3
MMI request for
S teer ing Pr ogram c hange
AND
PRG _CHANGE_EN
MMI request for
S T W P ro gr a m 4
MMI request for
S teer ing Pr ogram c hange
AND
PRG _CHANGE_EN
MMI request for
S T W P ro gr a m 5
MMI request for
S teer ing Pr ogram c hange
AND
PRG _CHANGE_EN
Steering wheel program 1-5
Output State
EH Val v e : ON
Cu t-of f V alv e: ON
Operation Status message
Op er ati o n st a tu s: S T W P ro gr a m 1 -5
Lo ckout f or EH-St eerin g funct ionality: EH-Steering functionality
allowed
Lockout for ste ering device changes: Con trolled by P3250 and
Vehicle speed
Lockout for Program changes: Controlled by P3251 and Veh icle
speed
Steering wheel algorithms are executed
MMI request for
Steering Program other than
OFF-Road non-re a ct io n
AND
PRG _CHANGE_EN
Steering wheel Program 1-5
Steering Wheel State machine
Disengage metho d SASA
Entry
Poi nt
Disengage
met hod
IMD
OFF-Roa d
reac ti on
steering
wit h IMD
MMI request the OFF
road reactio n steering
MMI requ est the OFF road
non reaction steering o r a
S T W p ro gr a m 1 -5
MMI requ est the OFF road
non re acti on stee ring AND
PRG _CHANGE_EN
MMI requ est the OFF road
reaction steering AND
PRG _CHANGE_EN
OFF-Road reaction steering
Output State
EH Val v e : OFF
Cu t-of f V alv e: OFF
Operation Status message
Op er ati o n st a tu s: OFF-Road reaction
Lo ckout f or EH-St eerin g funct ionality: EH-Steering functionality
allowed
Lockout for ste ering device changes: Con trolled by P3250 and Veh icle
speed
Lockout for Program changes: Controlled by P3251 and Veh icle s peed
Steering wheel algorithms are not executed
NOTE!
In order to utilize the reaction-mode on a vehicle, the steering axle
geometry of the vehicle has to be prepared for reaction-mode an d the
hardware (cut-of f/mode select spool in OSPE) has t o be of the type
“reaction/n on-re a ct io n”
Con tac t your Dan foss PAE fo r more clarific ation
OFF-Road non-reaction steering
Output State
EH Val v e : ON
Cu t-of f V alv e: ON
Operation Status message
Op er ati o n st a tu s: OFF-Road non-re a ct io n
Lo ckout f or EH-St eerin g funct ionality: EH-Steering functionality
allowed
Lockout for ste ering device changes: Con trolled by P3250 and
Vehicle speed
Lockout for Program changes: Controlled by P3251 and Veh icle
speed
Steering wheel algorithms are not executed
OFF-Roa d
reac ti on
steering
with
SASA
OFF-Roa d
non-
reac ti on
steering
wit h IMD
Figure 6

Danfoss PVED-CLS Specifications

General

Brand	Danfoss
Model	PVED-CLS
Category	Controller
Language	English