Search found 575 matches
- Tue Aug 22, 2023 8:58 pm
- Forum: Charging
- Topic: BMW LIM based CCS2 Controller
- Replies: 124
- Views: 41195
Re: BMW LIM based CCS2 Controller
output to enable the charger by Lim
- Tue Aug 22, 2023 5:19 pm
- Forum: Charging
- Topic: BMW LIM based CCS2 Controller
- Replies: 124
- Views: 41195
Re: BMW LIM based CCS2 Controller
this is chrge enable
- Wed Aug 16, 2023 9:40 pm
- Forum: Projects
- Topic: [WIP] 1950 Mercury Lead sled
- Replies: 36
- Views: 7744
Re: [WIP] 1950 Mercury Lead sled
Not that anyone thinks this project is sleeping. I only have a lot of sheet metal work and little electrics. The sheet metal is pretty wide at the front. At the moment I'm working on the top chop. Will also need a few months of sheet metal work until it comes to the finish (paint).
- Sun Aug 13, 2023 6:08 pm
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
No the clue is that it has a dynamic regen based on speed so it tapers at low rpm to remove the dead zone. That is why two graphs and the arrow. That makes sense. This means if the current RPM is half the set limit and the pedal is at 0%, regen is also half the set value. Above the set RPM, the dis...
- Sun Aug 13, 2023 7:55 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
The way I have implemented this feature in the past and on my EVS products image.png So all I have is a "steady regen rpm" from which it tapers the off pedal regen to 0 at just above +/- 50-100 rpm. Results have been very good in many vehicles from small light classic Minis to Tesla LDU p...
- Fri Aug 11, 2023 6:52 pm
- Forum: Charging
- Topic: Develop a QCA7000 board?
- Replies: 569
- Views: 6968346
Re: Develop a QCA7000 board?
I installed this, it is specified as 3A / 36 W. Most sources say so. But maybe there are also differences, e.g. DC motor versus solenoid with peak and hold.
https://www.evsegroup.com/electromagnet ... r-product/
https://www.evsegroup.com/electromagnet ... r-product/
- Fri Aug 11, 2023 6:36 pm
- Forum: Charging
- Topic: Develop a QCA7000 board?
- Replies: 569
- Views: 6968346
Re: Develop a QCA7000 board?
Do you think this is suitable for the locking actuator? Now the right link! https://www.mouser.de/ProductDetail/Texas-Instruments/DRV8874QPWPRQ1?qs=mAH9sUMRCttZUT1myh3Itg%3D%3D The locking actuator is ratet at 3A in 12V version! https://www.evsegroup.com/electromagnetic-lock-for-electric-vehicle-po...
- Fri Aug 11, 2023 2:05 pm
- Forum: Charging
- Topic: Develop a QCA7000 board?
- Replies: 569
- Views: 6968346
Re: Develop a QCA7000 board?
Do you think this is suitable for the locking actuator? https://www.mouser.de/ProductDetail/Texas-Instruments/DRV8904QPWPRQ1?qs=OlC7AqGiEDk9EK5XKZqTkw%3D%3D The locking actuator is ratet at 3A in 12V version! https://www.evsegroup.com/electromagnetic-lock-for-electric-vehicle-power-type-2-ev-chargin...
- Fri Aug 11, 2023 10:14 am
- Forum: Charging
- Topic: Develop a QCA7000 board?
- Replies: 569
- Views: 6968346
Re: Develop a QCA7000 board?
I prefer a housing that I can easily get here and also the appropriate connectors individually. Two individual connectors are also useful, e.g. to make one for the charging socket with LED, locking actuator, PE/PP, control button and fuel flap switch and the other for the connection to the car with ...
- Fri Aug 11, 2023 8:06 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
I dont think the regen travel should ever get as high as 50% of the throttle, The OEM implementations i've driven do most of this fiddling at low speeds and above that its fairly static. My suggestion is based on parameter. It may well be that a maximum of 30% pedal value at 70km/h or other values ...
- Fri Aug 11, 2023 7:48 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
Suggestion would be to remove regentravel and add regenrpm? And when you set it to 8000 for example, how would it work? Let's say you press the pedal 20% and letting the car to accelerate slowly to speed, for example 60 km/h. Then, when you lift your foot slowly - for example so that it takes 3 sec...
- Thu Aug 10, 2023 7:53 pm
- Forum: Tesla
- Topic: Can't get any regen with LDU, help! [SOLVED]
- Replies: 41
- Views: 3027
Re: Can't get any regen with LDU, help! [SOLVED]
Can it be that your udcmin and udcmax limit the performance or regeneration? Maybe you have cables that are too thin and too long, with a high resistance!
- Thu Aug 10, 2023 9:56 am
- Forum: General
- Topic: Modified de Dion axle in the UK
- Replies: 11
- Views: 643
Re: Modified de Dion axle in the UK
I first fixed the two individual parts with a pipe and a threaded rod. This ensures that the wheels are straight afterwards and that the track width is correct. I also changed the attachment for the air spring, it would look different with a leaf spring. The welded tube has a diameter of 89mm and a ...
- Wed Aug 09, 2023 5:44 pm
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
And on the left side, between 0 and 20km/h? The formula continues in the same way (left). It would be correct as shown in the middle. You need more parameters for that. In reality it will be like the picture on the right, since near zero the braking torque possible due to regeneration decreases. I ...
- Wed Aug 09, 2023 10:26 am
- Forum: General
- Topic: Modified de Dion axle in the UK
- Replies: 11
- Views: 643
Re: Modified de Dion axle in the UK
Mercedes is easy to find. https://www.ebay.de/itm/285397074812?epid=918181046&hash=item4272fdc37c:g:bBsAAOSwKwlkvNSI&amdata=enc%3AAQAIAAAA0KncVAFhV6J3cI7Ml1tcXS%2BAjHSRiQPSaWKa92qm08NZKkIN5iYzB50GeJJvfi%2BvF9oUJHbrI8Qsp9MUFQ2mQNdXzX8%2FakpvSO2n4uXYk5bE2Jr%2FUlL1Qe1dNpsJ0840CGTMsTvb%2FrDSbwzL...
- Wed Aug 09, 2023 9:59 am
- Forum: General
- Topic: Modified de Dion axle in the UK
- Replies: 11
- Views: 643
Re: Modified de Dion axle in the UK
I don't know anything about UK regulations, but I can imagine that you have better chances if you fit parts from another car. One possibility would be the axis of an Opel Diplomat! I personally made a De Dion axle out of Mercedes trailing arms for my car. I also use the Mercedes brakes and drive sha...
- Tue Aug 08, 2023 9:42 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
My suggestion looks like this. With a flat curve for acceleration at low speeds. Useful for high power configurations. Strong regeneration also possible at lower speeds => less use of the brake pedal. A new parameter needed, if it is set to 0 everything is as before. And of course no dead zone! Rege...
- Mon Aug 07, 2023 7:56 pm
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
This confirms that a speed dependent pedal travel or initial recovery value is the correct approach. A fixed pedal value for transitioning from accelerating to decelerating is not it! With your car, it may be that -2500N is the maximum deceleration. I find the positive values interesting. You say ...
- Sat Aug 05, 2023 9:04 am
- Forum: Toyota/Lexus
- Topic: Prius Gen 2 EPAS - Electric Power Assist Steering
- Replies: 21
- Views: 6771
Re: Prius Gen 2 EPAS - Electric Power Assist Steering
i have no idea about the prius steering, but on mine, from an opel corsa, the steering assistance is given by two square-wave signals. One corresponds to the engine speed, taken from the ignition coil. It must be at least 800RPM, 4 cyl. so that a steering support occurs. The other is the wheel speed...
- Sat Aug 05, 2023 8:55 am
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 309145
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
So you assume that the Tesla solution is to omit the rotor cooling, because it doesn't do anything anyway?
- Sat Aug 05, 2023 8:41 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
0% pedal is a function of the speed, something like 0km/h -> +1kW (or zero in case of brake pressed) 6km/h -> 0kW 20km/h -> -5kW 100km/h -> -20kW (values just guessed, and are lower if lower level is selected with the paddles) Summary from my point of view: Discard the regentravel parameter complet...
- Sat Aug 05, 2023 8:31 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
I think the problem here is example the case where you quickly press the pedal 100% and release it to 20% to keep the speed. You probably don't want any regen to happen, even though lifting 80% of the throttle. Johannes probably could answer to this: Is there some variable in the code which could t...
- Fri Aug 04, 2023 2:33 pm
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
It's the same with a combustion engine car. If you give it enough gas that the engine makes 3000RPM with no load, it will brake above 3000RPM and accelerate below 3000RPM.
- Fri Aug 04, 2023 2:28 pm
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
If you increase regentravel dynamically from 0% to 60%, the same thing happens what Johannes told about Kia with flappy pedals adjusting regentravel - it affects your accelerator. Smaller and variable effective zone for accelerator pedal, might be even worse than initial dead zone. that is not righ...
- Fri Aug 04, 2023 11:59 am
- Forum: Inverters / Motor Controllers
- Topic: Accelerator pedal dead zone
- Replies: 104
- Views: 42641
Re: Accelerator pedal dead zone
As i understand it, the accelerator pedal specifies the desired torque, not a RPM. The RPM can be output. There is no target RPM, only an upper speed limit. The version I suggested, which can of course also be implemented in the software, has the advantage of not having a dead zone and, at higher sp...