Emulator serviceable catalytic Converter B12S12

Brand: MCE Devices
Product Code: B12S12
Availability: Out of production
$26.73
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This device is the second generation of dual-channel emulators with feedback, operating by the duration of opening of the injector, and the rotation speed of the crankshaft.Start of production of the device, the first half of 2011

The main differences from the devices of the first generation:

  1. Manual setting of the device, replaced by Autonomous, which when activated, will automatically configure the device directly on the engine running.
  2. As manual settings applied remote configuration, via a computer interface and special software Configurator. For its implementation, uses a special interface cable Converter USB-COM, and a PC or laptop with built-in USB port.
  3. The output signals correspond to signals of real sensors due to their pseudohalogens form.
  4. The signal parameters of additional (diagnostic) oxygen sensor can be changed using Configurator program.

Conventional emulators, generating the sequence of signals is poor or rich, are not able to correctly simulate these signals because of lack of feedback, and the ECU sooner or later 'will compute' mismatch signals and will expose the error for the oxygen sensor (DK). Especially sensitive to such discrepancies ECU systems with Euro 3 and above, where DK diagnosis more difficult. Especially not really emulate the signal of the second diagnostic DK designed to monitor the condition of the catalytic Converter, because other than the first DK and algorithm of its work.

It is known that the electronic engine control module modifies the fuel-air mixture composition, the increase (enrichment) or decrease (impoverishment) injection time of the injectors. When the staff of DK, is analyzed the residual oxygen in the exhaust gases, and at a certain minimum level, the sensor exhibits a signal rich mixture. The ECU responds by reducing the injection time (if the conditions of work feedback on DK), and thus there is a depletion of air-fuel mixture that meets the DC signal lean. Thus, staff supports the conditional average DC level of the injection time corresponding to the optimum fuel-air mixture composition which differs little from this value at different frequencies of rotation of the crankshaft of the engine. It is this value of the injection time corresponding to the optimal composition of fuel mixture and is fixed automatically, or set manual on our emulator. Our device reads and determines the injection time of the petrol injectors of the engine, and there is a delay associated with the combustion of fuel assemblies in the cylinder, and the passage of exhaust gases to DC, puts the signal is poor or rich mixture depending on the change of the injection time with the engine running. When this UNIT meets the opposite reaction to the signal, opens or closes the nozzles to a greater or lesser period.

The ECU monitors the signals DK not only to regulate air-fuel mixture, but also to diagnose themselves DK. For example, if there is an enrichment (increase injection timing), the ECU expects from DK 'response' signal rich mixture after a certain period of time required for combustion of fuel assemblies in the cylinder and the exhaust passage to DC. If this does not occur for several test cycles, the ECU sets the error flag 'response No DK enrichment', is also happens when diagnostic DK a lean condition, and if the signal does not change to the level of 'lean', as well for several test cycles, is the error flag 'there is No DC response in the depletion'. In the absence of the DC signal, or if it is constant, is the error flag 'No activity DK' and the ECU goes into emergency work. And operation of the engine in emergency conditions, is prohibited, and is intended only for delivery of the vehicle to the place of repair.

All the algorithms serviceable DK inherent in our emulator, and it is able to replace one or both of the DC staff when they malfunction or faulty catalytic Converter. Just plug it into the signal circuits of the DC according to the scheme, and configure the device, according to instructions. In addition, it will produce the correct diagnostic signal, the second DC designed to monitor the condition of the catalytic Converter exhaust gases in engines Euro 3 and above. A particularly useful device for our LPG installers don't support system Euro2 and above where not taken into account the participation of one or two DC in the education of TVs. It often happens that in such system the DK fail (even serviceable DC signal which are operation modes of the ECU), and there are errors associated with the violation of feedback and fault one or two of DK. As a result, the engine begins to run irregularly, lose t�ha and throttle response, there are jerks and failures associated with the operation of the engine in emergency mode. The device emulates the operation of oxygen sensors based on zirconium dioxide, with a signal range from 0 to 1 volt that covers almost the entire range of signals of these sensors from different manufacturers.


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