Peripherals - Bosch MS 6 Manual

Bosch Motorsport
Cutoff Pattern
CUTOFF_APP
CWCUTOFF_APP
Notice: This option is also useful for searching a misfiring cylinder. Select one cylinder after
the other during test cutoff and watch your engine.

4.2 Peripherals

Sensors and peripherals can be checked when the system is powered up electrically.
Do not start the engine before all steps in this chapter are carried out.
NOTICE
Make sure the battery is connected properly, all sensors are connected and ground wiring
is fixed before powering up the system. Check all sensors for errors (E_...) and reliable
measure values before starting the engine.
Sensor configuration
The MS 6 has the option to link a lot of functionalities to a possible hardware input. The
chapters "ECUPINS, SWITCHMATRIX and Input Signal Processing" of the functional de-
scription explains the details. All functions of Base MS 6 programs are linked like de-
scribed in the MS 6 documents (e.g. function description ADC_ECU_MAP) or the wiring
diagrams.
Analogue sensor inputs
The physical way of conversion from sensor signal voltage to physical values follow the
same structures. The hardware input may be connected to different kinds of pull-up op-
tions. Inputs with fixed 1.47 kOhm or 3.01 kOhm pull-up resistors are prepared to handle
passive sensor elements, for instance temperature sensors with integrated resistors (NTC-
or PT100 sensors). Inputs without any pull-up resistors are prepared to handle active
sensor elements, which deliver 0 to 5 V signals, for instance pressure-, potentiometer- or
acceleration sensors. Inputs with switchable 1.47 kOhm pull-ups are designed to handle
mainly active sensors with disabled pull-up, but are prepared for future measuring of di-
gital signals. Inputs with switchable 3.01 kOhm pull-ups offer the most options and are re-
commended to link after the standard sensors are connected. The pull-up resistor itself is
not modifiable and for better measure results may be, the version of sensor/mapping line
has to be changed. To activate the Pin-Selection, first the label "SWITCHMATRIX_EN-
ABLED_PIN_IN_ADC" has to be enabled. Error detection of an analogue input signal de-
tects short cuts to ground, U"function"_MIN recommended to be set to 0.2 V and short
cuts to power supply U"function"_MAX recommended to be set to 4.8 V. Failure are activ-
ated after the adjustable debounce time of diagnosis TD"function". If a sensor error is set,
the output is switched to the default value "function"_DEF.
Engine_Control_Unit_MS_6.x_Manual
Cutoff pattern for test purposes. Bit representation as de-
scribed at
MP_COPATTERN
Codeword for type of intervention during test cutoff:
Set:
1 = injection cutoff
2 = ignition cutoff
3 = injection and ignition cutoff.
Prepare Data Base | 4
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