[Diy_efi] WB Lambda Meter

[Greg Hermann]

At 11:57 PM 11/17/02, bcroe at juno.com wrote:
>If you can do it for $300 including the sensor, you have a
>winner.  Just let us know when available.
>
>Bruce Roe

Agreed completely. If you can do it for the price stated, it should sell
like hot-cakes !

Greg
>
>On Thu, 14 Nov 2002 Klaus Allmendinger
><klaus at innovate-tech.com> writes:
>
>> My company is currently developing a new wide-band Lambda
>> Meter based on the NTK and Bosch Sensors using a new
>> measurement principle. This principle uses proprietary algorithms
>> for calculating Lambda from the sensor data without resorting
>> to calibration resistors and such. I want to use this forum to see
>> what the interrest level in this community is for such a device.
>> Here are the target specs:
>>
>> 1. Precise heater control (Htr resistance controlled to +- 10
>> milliOhm).
>>
>> 2. Fast, temperature gradient controlled light-off time ( < 20sec)
>> depending on sensor.
>>
>> 3. 32-character LCD display for AFR, Lambda and Lambda bar-graph.
>
>> 4. Automatic error detection and display for sensor and connection
>> faults.
>
>> 5. Digital Signal Processing for Lambda Signal sampled and
>> processed at 128 times Sensor response speed. Overswing
>> compensated and controlled using digital filtering algorithms.
>
>> 6. Self compensating for exhaust temperature, pressure (within
>> resonable limits) and (within reason) sensor aging. Target
>> error < 0.5% lambda.
>
>> 6. Self calibrating in operation.
>
>> 7. Linear Lambda output as voltage in addition to display.
>> Programmable Lambda/Volt ratio to fit user's remote
>> analog lambda display.
>
>> 8. Simulated HEGO output with programmable switchpoint.
>
>> 9. Inputs for up to 5 additional analog sensor signals (like
>> TPS, MAP/MAF, CT ...)
>
>> 10. Stores up to 1 hr of sensor data (for all sensor inputs +
>> lambda concurrently) internally in non-volatile memory (when
>> sensors are sampled at 100ms). If less sensors are used
>> the sampling time decreases proportionally.
>
>> 12. Serial Port for programming and data download.
>> Downloaded data formatted into Excel compatible file and
>> time-stamped (Windows download software included).
>
>> 13. Small hand-held device.
>
>> 14. Price target < $300.- including sensor.
>
>> A cheaper module is also planned that does not include
>> storage and LCD display but allows the user to program
>> the HEGO output depending on other
>> sensor data using downloadable maps.
>
>> Klaus
>
>_______________________________________________
>Diy_efi mailing list
>Diy_efi at diy-efi.org
>http://www.diy-efi.org/mailman/listinfo/diy_efi



_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi