Bosch vehicle accelerometers

Hardware inside and outside of the ECU
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AndreyB
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Bosch vehicle accelerometers

Post by AndreyB »

Two types of 4 wire OEM CAN bus accelerometers are https://github.com/rusefi/rusefi_documentation/blob/master/OEM-Docs/Bosch/yaw_rate_sensor_yrs_3.pdf and https://github.com/rusefi/rusefi_documentation/blob/master/OEM-Docs/Bosch/Data%20Sheet_68903691_Acceleration_Sensor_MM5.10.pdf

Let's see what's the cheapest option to wire longitudinal accel on a rusEFI vehicle!

As of today I've received some data https://github.com/rusefi/rusefi/issues/2225#issuecomment-931635265 from 0265005693 which does not exactly match yrs_3 format with four offset 0x8000 fields.

Also just ordered f037000002 which at least looks like MM5.10 we shall see what kind of data it would send me!
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Re: Bosch vehicle accelerometers

Post by AndreyB »

I also have a couple of six-wire Bosch sensors for which I do not have pinout. Those could very well end up being analog?
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Re: Bosch vehicle accelerometers

Post by blundar »

My 1992 (!!) R32 skyline has an accelerometer as part of the ATTESA all wheel drive system. Apparently, they're somewhat problematic. Not surprising they pre-date the solid state MEMS units these things are using!
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Re: Bosch vehicle accelerometers

Post by puff »

don't they need calibration each time before work (pretty much the same as with copters, when you have to make magic acrobatics with your drone before you actually fly)
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Re: Bosch vehicle accelerometers

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puff wrote:
Sat Oct 02, 2021 11:32 pm
don't they need calibration each time before work
https://github.com/rusefi/rusefi_documentation/blob/master/OEM-Docs/Bosch/Data%20Sheet_68903691_Acceleration_Sensor_MM5.10.pdf has nothing about calibration, you just power and it starts to send data out.
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Re: Bosch vehicle accelerometers

Post by AndreyB »

MM5.10 box mold 1275100853
I would like to thank Mitch Minton for telling me that F037000002 specifically matches Acceleration Sensor MM5.10 datasheet

open question if can-am 0265005955 or Mercedes 0009059101 send out same exact information anyone willing to donate $30 towards a 0009059101 sensor?

Log file https://rusefi.com/online/view.php?log=359


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mm5.10-on-the-left-yaw3-on-the-right-same-4-pin-plug.jpg
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Re: Bosch vehicle accelerometers

Post by AndreyB »

Kirby says Housing : TE 1-967640-1, pins 144969-1, seal 967056-1 and plug 967067-2.

PS: "FOV" points at Front of vehicle, that's how you are installing those.


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Re: Bosch vehicle accelerometers

Post by Dron_Gus »

Subaru 27542AG011, Bosch 0 265 005 627
Silent after power on. While replies (ACKs) on other messages on CAN bus at 500K.
Seems need some magic kick to power on?
Consumes 100..110mA@12V.
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Re: Bosch vehicle accelerometers

Post by nmstec »

Dron_Gus wrote:
Thu Dec 16, 2021 9:58 am
Subaru 27542AG011, Bosch 0 265 005 627
Silent after power on. While replies (ACKs) on other messages on CAN bus at 500K.
Seems need some magic kick to power on?
Consumes 100..110mA@12V.
1_YWqE_EMxE.jpg
https://www.bosch-motorsport.com/media/downloads/yaw_rate_sensor_yrs_3.pdf

Please get a databus log, and I'll see if I can find you a wakeup address/packet. It's usually Single byte packet with 0x01 for wake, and 0x00 for sleep
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Re: Bosch vehicle accelerometers

Post by nmstec »

AndreyB wrote:
Tue Oct 05, 2021 9:32 pm
MM5.10 box mold 1275100853
I would like to thank Mitch Minton for telling me that F037000002 specifically matches Acceleration Sensor MM5.10 datasheet

open question if can-am 0265005955 or Mercedes 0009059101 send out same exact information anyone willing to donate $30 towards a 0009059101 sensor?

Log file https://rusefi.com/online/view.php?log=359



image.png

mm5.10-on-the-left-yaw3-on-the-right-same-4-pin-plug.jpg
We have two can-ams in stock. Can Probe their buttholes.
"Dave B. 5:03 PM
Mark is an ass but by far the most potent combination of knowledgeable ass, smart ass, get it done ass and determined ass. and his ass consistently puts in time."

-Dave B, Hero, Tuner, and probably has a car.
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Re: Bosch vehicle accelerometers

Post by Dron_Gus »

nmstec wrote:
Thu Dec 16, 2021 4:56 pm
https://www.bosch-motorsport.com/media/downloads/yaw_rate_sensor_yrs_3.pdf

Please get a databus log, and I'll see if I can find you a wakeup address/packet. It's usually Single byte packet with 0x01 for wake, and 0x00 for sleep
Unfortunately I have only this sensor from scrapyard. Not the whole car. So I can not get bus dump.
BTW this is from 2003-2008 subaru legacy/outback.
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Re: Bosch vehicle accelerometers

Post by nmstec »

Found the info. Page 294: https://www.bosch-motorsport.com/media/downloads/catalogs/printkatalog_2020.pdf

Please note:
CAN ID0 0x0170 (Rx) is used for synchronization and configuration of the sensor (SYNC). Make sure that the CAN ID 0x170 is not
used in your can network by any other device.
"Dave B. 5:03 PM
Mark is an ass but by far the most potent combination of knowledgeable ass, smart ass, get it done ass and determined ass. and his ass consistently puts in time."

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Re: Bosch vehicle accelerometers

Post by Dron_Gus »

nmstec wrote:
Thu Dec 16, 2021 5:49 pm
Found the info. Page 294: https://www.bosch-motorsport.com/media/downloads/catalogs/printkatalog_2020.pdf

Please note:
CAN ID0 0x0170 (Rx) is used for synchronization and configuration of the sensor (SYNC). Make sure that the CAN ID 0x170 is not
used in your can network by any other device.
Thanks for hint! On other doc I found that 0x070 is also used for Sync/Config. Few moments later:

Code: Select all

 (000.000246)  can0  RX - -  576   [8]  1E 76 4C 88 12 00 00 00
 (000.100267)  can0  RX - -  070   [8]  03 00 7E 00 04 00 00 79
 (000.099625)  can0  RX - -  070   [8]  01 00 7E 00 04 00 00 7B
 (000.100130)  can0  RX - -  070   [8]  03 00 7E 00 04 00 00 79
 (000.100516)  can0  RX - -  070   [8]  03 00 7E 00 04 00 00 79
 (000.099855)  can0  RX - -  070   [8]  03 00 7E 00 04 00 00 79
 (000.100355)  can0  RX - -  070   [8]  01 00 7E 00 04 00 00 7B
 (000.099753)  can0  RX - -  070   [8]  03 00 7E 00 04 00 00 79
 (000.100136)  can0  RX - -  070   [8]  01 00 7E 00 04 00 00 7B
This is sensor reply if I feed it with 070#0100 (cangen can0 -I 075 -g 100 -D 0100 -L 2 -x).
Still playing with data in 0x070 packet. Reply data and length depend on bits set in 0x070 payload.
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