Training Bosch direct petrol injection as exemplified by the Volkswagen Group

scope of the training

Practical part

diagnostics using KTS and FSA devices on engines and training cars

Theoretical part

direct petrol injection systems – MED on the example of MED 9 and MED 7 systems used in VW group cars
FSI and classic engines, combustion of lean homogeneous and stratified mixtures - benefits, problems
low fuel pressure circuit: structure and operating principle of the variable, electronically controlled flow system; integrator, adaptations, basic settings
high pressure fuel circuit: construction and principle of operation of the system; construction, principle of operation of high pressure pumps – variants, high pressure regulation, typical faults, failure modes, system behaviour;
high pressure injectors - control concept, diagnostics, assembly/disassembly
intake system: air guides - construction, purpose, control concept, emergency mode
engine operating modes – types of mixtures, methods of their implementation, system behavior, emergency modes, diagnostics
exhaust system - exhaust gas treatment: exhaust system structure, variants
wideband probe in the process of regulating the composition of the variable λ mixture, construction, principle of operation, diagnostics
nitrogen oxides (NOx) accumulation and reduction system: emission and reduction of nitrogen oxides: structure and principle of operation of the NOx accumulation and reduction system, NOx storage catalyst, NOx sensor - structure, principle of operation, tasks, diagnostics, problem of sulphation and desulphurisation of NOx catalysts (also in the context of fuel quality and consumption)
exhaust gas recirculation in FSI engines
variable valve timing (also as an element to combat so-called turbo lag)
electronically controlled cooling system: system with electronically controlled thermostat (structure, operating principle, purpose of use, emergency mode, diagnostics), electronically controlled fans (purpose of use, control, diagnostics)
dethrottling of FSI engines in the context of increasing braking power