De vanzare ceas VEMS in care este incorporat:
-Lambda (WBO2)
-Temperatura de evacuare (EGT)
-Boost control (harta de rpm / pwm)
-Loging function (3 intrari de 0-5v)
Pret:
Ceas : 170 euro
Sensor Lambda LSU4.2: 80euro
Snesor EGT 6mm: 73euro
Restul in engleza:
This is ment as an easy-to-use device, but quite a few advanced features are also supported.
WBO2. real WBO2 control circuit (full implementation), not a fake value from narrowband voltage as most ledbar displays
EGT (with cold-junction measurement)
onboard-temp
dimming
display signal of RPM (frequency) input. Supports 0/5V HALL or optical sensor, or AC signal from variable reluctance (VR) sensor (1 bias resistor might be needed depending on the signal properties).
high visibility display of any data coming from RS232 (eg. from genboard v3 controller or other ECU via AIM protocol)
display the signal from 0-5V analog input with custom configurable curve
0-5V analog output. EGT signal, or WBO2 lambda/AFR signal with custom configurable curve (narrowband emulation also possible)
Data can be logged to PC for further analysis
The device can receive data via the RS232-DSUB9 port in "AIM" format, and display values with scaling (eg. from Celsius to Fahrenheit, km/h to mph conversion). See product page below for how to set up this. Note that the cheaper Display-Only Round can also do this (that looks the same, but has only RS232 cable)
firmware upgrade via bootloader (from command line or from VemsTune
even bootloader upgrade is possible (for improved network support)
Boostcontrol function is now supported (2010-04) at the same time as WBO2 and EGT (wastegate control via PWM-solenoid) (with RPM dependent target and reference-PWM values) .
Alternatively, instead of boostcontrol, idlecontrol or producer-gas mixture lambda control can be configured as well
Idlecontrol uses the RPM input for feedback and controls a PWM-solenoid valve to feed air to an engine
Producer gas mixture lambda control uses the wideband (LSU4 WBO2) sensor placed in the exhaust, and controls a 2-wire PWM idle-valve to feed air (usually there is a 1/2"-1" primary manual valve, and this smaller electric valve (eg. from a VW-passat gasoline engine) in parallel to it makes up for the variations (as the wood-gasifier internal conditions change over time, eg. temperature, moisture content, CO2 content). This function can be used to eliminate most of the manual tweaking the CHP (combined heat and power) powerplant otherwise requires to produce power/electricity (and heat), from woodchips or other suitable solid fuel. This feature is not currently available elsewhere, even for 3 times the cost of this device. If you need more outputs, or ignition control (and possibly injection for startup / backup / testing), check the v3.x controller also supports this, and much more (eg. stepper-based idle control that can support much bigger valves with lower valve-power consumption).
RPM input (VR or HALL, several trigger-types) for display, logging, idlecontrol or boostcontrol. The RPM input frequency detection is very precise
[Vand] WBO2 + EGT + Boost Contol VEMS Round Gauge
