System Strategy for CN6 Emission Regulation

Bosch

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With its CVO (Controlled Valve Operation) system solution for direct injection engines, Bosch has adopted a mechatronic approach that can make a valuable contribution to legal limits for emissions. Unlike conventional open-loop controlled injection, the control unit and high-pressure injectors constitute a closed loop in this setup. The control unit detects the triggering signal for the high-pressure injectors across the entire injection process and determines the timing for opening and closing the valve needles. Thus, the control unit can calculate the actual injection quantities of each injector and make adjustments where necessary. CVO offers an innovative and cost-effective approach to engine optimization.
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Fan module with brushless motor ECM for engine cooling
 
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Mechanical variable-displacement oil pump
 
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Electrical coolant pump
 
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Electronic Control Unit
 
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Electronic throttle body
 
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Intake manifold and boost pressure sensor with temperature sensor
 
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Knock sensor
 
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Canister purge valve
 
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Accelerator-pedal module
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Crankshaft speed sensor
 
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Fuel-supply module
 
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Planar switching-type lambda sensor
 
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Planar wideband lambda sensor
 
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14 Spark plug 15 High-pressure injector
 
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Camshaft position sensor
 
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High-pressure pump
 
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18 Ignition coil 19 High-pressure fuel rail
 
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20 Mechanical vacuum pump 21 Temperature sensor
 
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Turbocharger speed sensor
 

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Hot-film mass air flow sensor

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Low-pressure EGR valve
 
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Diagnosis module – Tank leakage
 

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​GPF differential pressure sensor/EGR differential pressure sensor

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Exhaust temperature sensor
 
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Crankcase pressure difference sensor
 
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Desorption tube pressure sensor/Second air pressure sensor
 
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Engine compartment actuator
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B Electronic module C Linear-force solenoid

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