GF54.21-D-3007HC Functional Scope of Engine, PSM, Function

GF54.21-D-3007HC Functional Scope Of Engine, PSM, Function

- with CODE (ED5) Parameterizable special module (PSM) Speed limit (GB)


- with CODE (ED8) Preinstallation for parameterizable special module (PSM) Speed limit (GB)


- with CODE (ED5) Parameterizable special module (PSM)


- with CODE (ED8) Preinstallation for parameterizable special module (PSM)

Engine functions
The PSM control unit provides the possibility of influencing functions in the engine control unit.
The parameterizable function modules "Speed limit (GB)" and "Engine remote start/stop" which ensure correct operation of the engine control unit have been implemented for this purpose.

The speed limit (GB) function and the engine remote start/stop function are only possible with diesel engines.

Speed limit (GB) function
The speed limit (GB) function is used to switch on a parameterizable speed limit.

Engine remote start/stop function
With the engine remote start/stop function, the engine can be stopped and started again via the PSM control unit.

The engine remote start/stop function is only possible if the working speed control function is active. If, following engine stop, the working speed control function is deactivated, engine start is no longer possible.







Speed limit (GB)
57 Signal "Maximum vehicle speed"
191 Signal "GB from discrete input"
192 Signal "GB from CAN Body manufacturer"
193 Signal "Activation of speed limit"
OR OR combination

Parameters for "Speed limit" function

Speed limit request from discrete input
Discrete request for activation of speed limit.
Parameterization possibilities:
Any signal Any signal can be used here.
Permanent LOW Function deactivated
(signal ID 1000)

Request GB from Controller Area Network bus Class C (body manufacturer) (CAN Body manufacturer)
Actuation of the step plate switch triggers activation of the speed limit.
Parameterization possibilities:
Any signal from Any signal from
body manufacturer CAN Use signal from the body
manufacturer CAN.
Permanent LOW Function deactivated
(signal ID 1000)

Maximum vehicle speed
The vehicle speed is set via the parameter "Maximum vehicle speed (km/h)" in the speed limit properties.

Engine remote start/stop function

Function "Engine start"
With the "Engine start" function, the following input conditions can be parameterized for internal function enable:
- Signal settings:
- Circuit 15 ON
- Transmission in neutral
- Clutch fully depressed
- Hand brake applied
- Engine start lockout not active
- Power take-off (PTO) is not active

- Properties to be parameterized
- Function module "Engine start" is activated
- Engine not running

The functions are only possible if working speed control is active. If, following engine stop, the working speed control function is deactivated, engine start is no longer possible.

When these conditions are met, the output of the engine start signal can be activated with the outputs "Engine start discrete" or "Engine start CAN Body manufacturer".
It is also possible to determine whether the input conditions for executing the engine start are checked only at the time of activation or during the entire engine start attempt.
If a running engine is detected by the PSM control unit, the engine start signal is canceled.
After a timeout (6 s), the engine start signal is reset and a fault entry is generated. The engine start can then be activated again.

The function "Engine start via PSM control unit" is only possible if the engine was switched off beforehand via the function "Engine stop via PSM control unit".

Request "Engine start" from discrete input
Discrete engine start request.
Parameterization possibilities:
Any signal Any signal can be used here.
Permanent LOW Function deactivated
signal ID 1000)

If a discrete input is used for the "Engine start" function, the parameter "Switch/Button" must be set to "Switch" at the input, irrespective of whether a switch or button is used. Malfunctions may occur otherwise.

Request engine start from body manufacturer CAN
Engine start request via CAN Body manufacturer.
Parameterization possibilities:
Any signal from Any signal from
body manufacturer CAN Use signal from the body
manufacturer CAN.
Permanent LOW Function deactivated
(signal ID 1000)

Condition for engine start, selector lever in position "N", with transmission 722.6
The availability of the signal depends on the vehicle equipment.

Activation input (bit signal) as condition for engine start.
Parameterization possibilities:
Selector lever in position "N" Querying of the neutral position
(signal ID 10F2) of the gear selector lever for
activation of the engine start
Inquiry deactivated Querying of this condition
(signal ID 300B) is deactivated.

Condition for engine start, hand brake
Activation input (bit signal) as condition for engine start.
Parameterization possibilities:
Hand brake applied Querying of the hand brake
(signal ID 1055) for activation of the engine start
Inquiry deactivated Querying of this condition
(signal ID 300B) is deactivated.

Condition for engine start, signal "Hand brake" from discrete input
Activation input (Bit signal) as condition for engine start. Here a signal from any handbrake fitted or an additional parking brake indicator switch can be used.
Parameterization possibilities:
Any signal Any signal can be used here.
Inquiry deactivated Querying of this condition
(signal ID 300B) is deactivated.

Condition for engine start, request "Starter lockout" from discrete input
Discrete engine start lockout is evaluated inverted.
Parameterization possibilities:
Any signal Any signal can be used here.
Permanent LOW Function deactivated
(signal ID 1000)

Condition for engine start , Request starter lockout from CAN Body manufacturer
Engine start lockout via CAN-ABH, evaluated inverted.
Parameterization possibilities:
Any signal from Any signal from
body manufacturer CAN Use signal from the body
manufacturer CAN.
Permanent LOW Function deactivated
(signal ID 1000)

Condition for engine start, PTO engaged
Signaling for engaged PTO. Here the actuation signal of the power take-off solenoid valve is taken as a default setting.
Parameterization possibilities:
Clutch depressed Inquiry whether the PTO is engaged
(signal ID 11C4) for activation of the engine start
Permanent LOW Function deactivated
(signal ID 1000)

Condition for engine start, clutch
The availability of the signal "Clutch fully depressed" depends on the vehicle equipment.

Activation input (bit signal) as condition for engine start.
Parameterization possibilities:
Clutch depressed Inquiry whether clutch is
(signal ID 11C4) is fully depressed for activation of
the engine start.
Clutch fully depressed Inquiry whether clutch is
(signal ID 10F1) fully depressed for activation of
the engine start.
Inquiry deactivated Querying of this condition
(signal ID 300B) is deactivated.

Signals of the function engine start which are stored in the signal pool

Signal "Engine start"
This bit signal is the source for the engine start request transmitted via Controller Area Network bus class B (interior) (CAN B). It is set by the function module "Engine start".
This signal is set when the inputs of the function module engine start are valid and one of the engine start requests (discrete, CAN Body manufacturer) is active.







Description of associated function modules
Engine start
52 Signal "Hand brake"
55 Signal "Neutral position"
201 Signal "Engine start from discrete input"
202 Signal "Engine start from CAN Body manufacturer"
205 Signal "Hand brake via discrete input"
208 signal "PTO not active"
209 Signal "Clutch"
210 Signal "Engine start"
AND AND combination
EP Single test of input conditions
MM Engine start until engine is running?
OR OR combination

Function "Engine stop"
The "Engine stop" function requires the following input conditions before the engine stop signal can be output:
- Function module "Engine stop" activated (parameter)
- "Circuit 15 ON" and engine running

When these conditions are met, the output of the engine stop signal can be activated with the outputs "Engine stop discrete" or "Engine stop CAN Body manufacturer"

If a stopped engine is detected by the PSM control unit, the engine stop signal is canceled.
After a timeout (6 s), the engine stop signal is reset and a fault entry is generated. The engine stop can then be activated again.

The functions are only possible if working speed control is active. If, following engine stop, the working speed control function is deactivated, engine start is no longer possible.







Parameters for "Engine stop" function
Engine stop
211 Signal "Engine stop from discrete input"
212 Signal "Engine stop from CAN Body manufacturer"
213 Signal "Activation of engine stop"
MTM Engine stop until engine OFF
OR OR combination

Request "Engine stop" from discrete input
Discrete engine stop request.
Parameterization possibilities:
Any signal Any signal can be used here.
Permanent LOW Function deactivated
(signal ID 1000)

When using a discrete input for the function engine stop, at the input the parameter "switch/button" must be set to "switch", irrespective of whether a switch or a button is used. Malfunctions may occur otherwise.

Request engine stop from CAN Body manufacturer
Engine stop request via CAN Body manufacturer.
Parameterization possibilities:
Any signal from Any signal from
body manufacturer CAN Use signal from the body
manufacturer CAN.
Permanent LOW Function deactivated
(signal ID 1000)

Signals of "Engine stop" function which are stored in signal pool
Signal "Engine stop"
This bit signal is the source of the engine stop request transmitted via CAN B. It is set by the function module "Engine stop".
This signal is set when the inputs of the function module engine stop are valid and one of the engine stop requests (discrete, CAN Body manufacturer) is active.