openinverter forum

Could it be possible to implement little accerelation when off the brake just like a normal vehicle, to simulate a scenario of stop go traffic? My car always feels like the motor is knocking, I'm using gs450h and zombie vcu and now have more than 35k kilometers.. Thanks for the beautiful software and much support from Damien and tom91 and all those who work tirelessly to develop the Software.
Recently I also built a landrover 109 +Gs450h coupled to the original transfer case and the car is very powerful

Sure but it is quite some work to get it properly working with the regen and such without creating a dangerous condition.

It is called "creep" as in no feet on pedals having a positive torque request. Do not call it self-acceleration.

not something that I would want to code in without being able to code and tune it on a vehicle.

There is creep code in the inverter which is quite proven. It's just a P-controller that aims for a certain (low) rpm with capped torque

johu wrote: ↑Sat Aug 09, 2025 5:50 pm There is creep code in the inverter which is quite proven. It's just a P-controller that aims for a certain (low) rpm with capped torque

Sure, but the zombieverter has grown quite a bit now so needs looking at carefully. Alot of moving parts now, also any sort of RPM target requires sound reporting of the RPM. This is something that is prone to failure/juddery from the GS450h.

I've implemented a very basic creep mode for testing, it doesn't help with the clunkyness. The next release should be smoother if that's your only reason for wanting it.

tom91 wrote: ↑Sat Aug 09, 2025 3:42 pm Sure but it is quite some work to get it properly working with the regen and such without creating a dangerous condition.

It is called "creep" as in no feet on pedals having a positive torque request. Do not call it self-acceleration.

not something that I would want to code in without being able to code and tune it on a vehicle.

great,lacked proper words

Bigpie wrote: ↑Sat Aug 09, 2025 5:54 pm I've implemented a very basic creep mode for testing, it doesn't help with the clunkyness. The next release should be smoother if that's your only reason for wanting it.

excellent, good to learn there will be this feature in the next release

joeflickers wrote: ↑Sun Aug 10, 2025 9:18 am good to learn there will be this feature in the next release

Not here wont. Bigpie says he tried to implement creep mode but it did not make anything better for this GS450h so its NOT in the next release.

Throttle smoothness improvements have been made for the next release.

Creep mode was only for experimentation to see if keeping the drivetrain 'loaded' would reduce the jerkiness, it's not going to get merged and while it did behave like an automatic transmission, it did nothing for the smoothness

tom91 wrote: ↑Sun Aug 10, 2025 11:28 am Not here wont. Bigpie says he tried to implement creep mode but it did not make anything better for this GS450h so its NOT in the next release.

Throttle smoothness improvements have been made for the next release.

noted, the feature that really assisted in clunkness of the gs450h was adaptive drive using MG1 and MG2 .when using both Motors of low speed the motor was very cluncky and not goot in low speed control.

There is blended MG1 and MG2.

There now is also an improvement of the base level throttle code coming.

Chluckyness of GS450h is something that likely cannot be resolved fully, as it can be a mix of mechanical slop/not ideal control loops/using it out of its intended usage.

It is an opensource project, so if you have an idea of how to solve it you can code in changes as you wish.

tom91 wrote: ↑Wed Aug 13, 2025 11:43 am There is blended MG1 and MG2.

There now is also an improvement of the base level throttle code coming.

Chluckyness of GS450h is something that likely cannot be resolved fully, as it can be a mix of mechanical slop/not ideal control loops/using it out of its intended usage.

It is an opensource project, so if you have an idea of how to solve it you can code in changes as you wish.

I have something ongoing, I'll post in a couple of weeks. I have also developed a zombie vcu dashboard which I'll be opening a threat on