Torque reduction during shifts.
01-04-2015, 10:46 PM
#1
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1990 300ce supercharged and intercooled
Torque reduction during shifts.
I have been working on some stuff recently and ended up setting up a datalogger for monitoring calculated engine torque from the ecu and the actual torque reduction request from the tcu for shifts. Thought you guys might think this was cool. Also help a little with understanding the shift sequence.
THe blue line is engine torque and the green is the requested torque from the tcu during a gear change. The gauges just correspond to the data point the red line is crossing. This is all in nm.
THe blue line is engine torque and the green is the requested torque from the tcu during a gear change. The gauges just correspond to the data point the red line is crossing. This is all in nm.
01-06-2015, 06:03 PM
#3
I have been working on some stuff recently and ended up setting up a datalogger for monitoring calculated engine torque from the ecu and the actual torque reduction request from the tcu for shifts. Thought you guys might think this was cool. Also help a little with understanding the shift sequence.
THe blue line is engine torque and the green is the requested torque from the tcu during a gear change. The gauges just correspond to the data point the red line is crossing. This is all in nm.
THe blue line is engine torque and the green is the requested torque from the tcu during a gear change. The gauges just correspond to the data point the red line is crossing. This is all in nm.
01-06-2015, 06:40 PM
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1990 300ce supercharged and intercooled
This is using a Powertrain Control Solutions D200 but I am also using the CAN2 module from Lingenfelter for taking the CAN messages and turning them into a speed hz value for the D200 to read. This is just temporary and quick to get up and working. It is scaled to 1000rpm is 0nm and 2000rpm is 1000nm of torque but then I can do math on the logger to correct back to actual data.
The Lingenfelter CAN2 module is primarily used for running gauges for older cars that have new engine/transmissions instead of running a bunch of new sensors you can just pull the info from the factory CAN messages. But it is programmable for any CAN message and can do a lot more.
The Lingenfelter CAN2 module is primarily used for running gauges for older cars that have new engine/transmissions instead of running a bunch of new sensors you can just pull the info from the factory CAN messages. But it is programmable for any CAN message and can do a lot more.
