Engine Control Unit MS 7.4

The MS 7.4 engine control unit manages gasoline engines up to 12 cylinders. The MS 7 line features a powerful digital processing core with floating point arithmetic and a high-end FPGA for ultimate performance and flexibility. The MS 7 line utilizes a software development process based on MATLAB/Simulink which significantly speeds up algorithm development by using automatic code and documentation generation. Custom functions can be generated quickly and easily. The flexible hardware design allows the MS 7.4 to support complex or unusual engine or chassis configurations.


  • Optimized for low and high pressure injection
  • Data logger included
  • Gearbox control optionally included
  • Gigabit data interface


High pressure injection

Integrated power stages for triple injection and use of:
4 cylinders up to 14,600 rpm
6 cylinders up to 9,700 rpm
8 cylinders up to 7,300 rpm
(depending injection types and pressure ranges)

HP package for flat and V-engines inclusive (2nd Bank, MSV2, external cylinder 9-12)

Low pressure injection

Max. 12 cylinders up to 16,000 rpm, high impedance injectors only


8 integrated power stages up to 20 A,
alternatively up to 12 drivers for use with external power stages

Physical engine model for fast application

  • determine engine load by throttle position or air pressure signals
  • mixture control and basic ignition guided by main signal relative load rl
  • Subsystems pit speed-, launch-, rpm-limiter and ASR are integrated inside torque control
  • Separated power cut functions to assist several gear cut systems
  • Diagnostics
  • Integrated safety strategy for 2 electronic throttle controls

Integrated support of manual gearshift

Electronic throttle control




Turbo control


Traction control


Launch control


LTE Ethernet telemetry support


Internal logger

2 partitions with 4 GB memory each,
diagnostic channels,
fastest sampling 1 kHz,
digital filter respecting sampling theorem,
use of 4 GB USB data stick

Technical Specifications

Mechanical Data

Milled aluminum housing

4 motorsport connectors, 264 pins in total

Size without connectors

198 x 180 x 42 mm


1,610 g

Protection Classification


Temp. range (at internal sensors)

-20 to 85°C

Max. Vibration

Vibration Profile 1 (see Appendix or www.bosch-motorsport.com)

Electrical Data

Power supply

6 to 18 V


Dual Core 1 GHz, FPGA


Analog inputs


Combustion chamber pressure input


Selectable dig/ana inputs



2 K-type


2 LSU 4.9



Digital inputs


Digital switch Engine ON/OFF


Laptrigger input


Internal measurement

1 triax acceleration
1 ambient pressure
3 ECU temperature
10 ECU voltage (e.g. sensor supply)
6 ECU current (e.g. sensor supply)

Power supplies

4 sensor supplies 5 V, 50 mA
3 sensor supplies 5 V, 400 mA
1 sensor supply ubat, 250 mA
9 sensor grounds
2 sensor screens


Low pressure injection

Max. 12 cylinders up to 16,000 rpm, high impedance injectors only.
Outputs can be used alternatively as low side switches 2.2 A without freewheeling

High pressure injection

Integrated power stages for triple injection and use of:
4 cylinders up to 14,600 rpm
6 cylinders up to. 9,700 rpm
8 cylinders up to 7,300 rpm
(for supply voltages >10 V, depending injection types and pressure ranges)

Booster extension (HPI5)

Application notes avl. for Bosch HDP5- and Hitachi Gen3 pumps.
Hitachi Gen1 notes on request.
Additional booster connectable to support 9 to 12 cylinders or to realize higher rpm.


Max. 12 cylinders and coils with integrated power stage, or max. 8 cylinders and coils without integrated power stage, 20 A

Further outputs

2 x 4 amp pwm lowside switch
2 x 3 amp pwm lowside switch for Lambda heater
6 x 3 amp pwm lowside switch
4 x 2.2 amp pwm lowside switch
2 x 1 amp pwm lowside switch low dump resistant
3 x 8.5 amp H-bridge (2 reserved for electronic throttle)
2 x high pressure pump with MSV control
4 x 12 mA for control of Moog valves

Outputs signals

5 x MUX outputs for internal signals like flywheel, knock signals, cylinder pressure

Adaptation and Documentation


Configurable flywheel- and trigger disc geometries
Selectable links between functions and in- or outputs

Function documentation

Automatically created during code generation

MatLab code generation

Support for customer own MatLab function development

Software Tools (free download)

Data Analysis tool WinDarab V7

System Configuration tool RaceCon or later

Environment (not included)

Programming interface cable


Adapter cable to USB-port


Rugged USB flash drive


Connector for wiring harness


Mating Connectors (not included)

LIFE (red)


Actuator (blue)


Combined (orange)


Sensor (yellow)


Software Options (not included)

Gear Control Package I

Gear control MEGA-Line functionality, has to be used with MEGA-Line components
(License model via MEGA-Line)
[included for base versions beginning with MS7A_BASE_0500 or comparable]

-- Link to MEGA-Line Support Request--

-- Link to MEGA-Line License Request Form --

Gear Control Package II

Gear control Bosch Motorsport functionality

Customer Code Area

Enable Customer Code Area

Cylinder pressure determination

On request

Knock detection and control based on cylinder pressure

On request


1 Ethernet 1 Gbit

2 Ethernet 100 Mbit

2 Realtime Ethernet




1 RS232

1 Time sync synchronization Ethernet

2 Network screens

Installation Notes

Inspection services recommended after 220 h or 24 months, internal battery to be replaced during service.

Depending on your experiences with calibration of ECUs we recommend calibration support from Bosch Motorsport.

Please remember that the mating connectors and the programming interface cable are not included and must be ordered separately.

Ordering Information

Engine Control Unit MS 7.4

Order number: F02U.V02.514-02

Software Options

Gear Control Package I

Order number: F02U.V02.263-01 (on request)

Gear Control Package II

Order number: F02U.V02.264-01

Gear Control Package III

Order number: F02U.V02.265-01 (on request)

Customer Code Area

Order number: F02U.V02.137-01

Cylinder pressure detection base package MS 7.x

Order number: F02U.V02.543-01

Knock detection via cylinder pressure evaluation MS 7.x

Order number: F02U.V02.544-01


Breakout Box BOB 66-pole, Connector code blue

Order number: F02U.V02.295-01

Breakout Box BOB 66-pole, Connector code orange

Order number: F02U.V02.296-01

Breakout Box BOB 66-pole, Connector code yellow

Order number: F02U.V02.298-01

Breakout Box BOB MS 7, LIFE-Connector code red

Order number: F02U.V02.293-01


To get latest firmware, please contact your customer account manager or send an email to motorsport@bosch.de.