The engine shuts off if you brake too hard in the new Hirochi Sunburst Track Attack tune

[Maxar]

I like most of the update. The Track Attack tune on the Hirochi Sunburst has some issues however. It reaches its top speed too early. This is fixable by lowering the final drive gear ratio in the tuning settings. Another problem with this tune is that the engine shuts off if you brake too hard. It seems the car is detecting a crash from the braking g-force and shutting off the engine. This is bad for racing cars which brake hard often.

[Eizen745]

Or are you braking too hard, causing your wheels to lock up and stalling the motor because you forgot to disengage the clutch? Racing tunes rarely have ABS installed by default, and almost always have a sequential transmission, which doesn't auto-clutch like a DCT transmisson. If you stab the brakes to slow down for the corner, lock the wheels and stall the motor, and then it comes back to life when you let go of the brake, this is normal behavior.

Unless you are seeing the message in the corner of the screen: "Crash Detected, Stopping Vehicle"... but after-crash assist is only a feature on the higher end modern cars like ETKs and Civettas, and maybe the Bastion... unless they added it to the Sunburst with the new update... I couldn't say for sure on that because I'm still running .34

[Maxar]

Originally posted by Eizen745:

Or are you braking too hard, causing your wheels to lock up and stalling the motor because you forgot to disengage the clutch? Racing tunes rarely have ABS installed by default, and almost always have a sequential transmission, which doesn't auto-clutch like a DCT transmisson. If you stab the brakes to slow down for the corner, lock the wheels and stall the motor, and then it comes back to life when you let go of the brake, this is normal behavior.

Unless you are seeing the message in the corner of the screen: "Crash Detected, Stopping Vehicle"... but after-crash assist is only a feature on the higher end modern cars like ETKs and Civettas, and maybe the Bastion... unless they added it to the Sunburst with the new update... I couldn't say for sure on that because I'm still running .34

I play with a controller and I don't have a button open that I can use for the clutch so I've been playing with the Clutch Assistant option in the Gameplay settings turned on. That setting is supposed to handle the clutch automatically and prevent stalling like this from happening when you play with realistic gearbox settings, which I do.
EDIT: I should add that the clutch assistant option generally works on most other tunes and cars

[Silver Arrow]

Sometimes the engine just shuts off for no reason on other cars

[lizardguts73 TTV]

The 0.35 update borked clutch assist. It will stall the car if you lock up the tires even with clutch assist on. So you need to either wait for them to fix it or actually use the clutch when you slam on the brakes.

[log233when]

Originally posted by lizardguts73 TTV:

The 0.35 update borked clutch assist

The Sunburst's 6MT is nerfed to 5MT and I often get "syncronizer damage" when shifting using paddle shifter even with clutch assist, throttle assist and gearbox safety assist on.

[Maxar]

Originally posted by log233when:

Originally posted by lizardguts73 TTV:

The 0.35 update borked clutch assist

The Sunburst's 6MT is nerfed to 5MT and I often get "syncronizer damage" when shifting using paddle shifter even with clutch assist, throttle assist and gearbox safety assist on.

Yeah this seems like a bug of some kind. There probably shouldn't be damage with that many assists on.

[joakim674]

Originally posted by lizardguts73 TTV:

The 0.35 update borked clutch assist. It will stall the car if you lock up the tires even with clutch assist on. So you need to either wait for them to fix it or actually use the clutch when you slam on the brakes.

yeah i have this problem with a drift car i built- it workd perfectly before the update but now when i tap the break the car just dies even with clutch assist on

[↕ßæł-Aid↕]

I guess I avoided these issues by tuning inadvertently, both because I haven't had any issues like this and I also don't have any assists on apart from oversteer/understeer reductions...

I know that if DCT's and Autos with their torque converters locked will stall if the locking rpm is too low(tuned tested)and you lock up the wheels or even come to a stop without having downshifted because the transmissions are too lazy by default and in those higher gears it remains locked by default, with no target rpm(0).

Can someone record it happening so I get a better picture? It seems like a really repeatable action both for the syncro damage and the stalling aye

If anyone wants to get more tuning to help avoid the issue I talked about above(or make a better more responsive transmission), get CJD's Override Module on the Repository and you can forcibly change the shift logic and shift rpms. Want a super aggressive DCT that downshifts as soon as you give it too much throttle? you can do that. Make a lazy CVT that only downshifts when you smash the pedal? you can do that too!

Also recommend r.k's mods along with CJD's mods too!

The Gearbox Override Module still works on manual transmissions, and changes the behaviour of the Arcade Mode.

[↕ßæł-Aid↕]

Originally posted by Maxar:

It seems the car is detecting a crash from the braking g-force and shutting off the engine.

oh THAT, that's the thing that happens if you produce too many g's of force, you can make this happen by power sliding in a single spot around and around, eventually the sideways g'force will trigger the "Collision detected, coming to a stop" prompt and brakes being smashed. Not much you can do about that I'm afraid

[Maxar]

Originally posted by ↕ßæł-Aid↕:

Originally posted by Maxar:

It seems the car is detecting a crash from the braking g-force and shutting off the engine.

oh THAT, that's the thing that happens if you produce too many g's of force, you can make this happen by power sliding in a single spot around and around, eventually the sideways g'force will trigger the "Collision detected, coming to a stop" prompt and brakes being smashed. Not much you can do about that I'm afraid

I initially thought the g-force was the reason the engine was shutting down, but now I think it's because of the Clutch Assistant feature not always working well with some automatic transmission systems in certain cars.

[Maxar]

Originally posted by ↕ßæł-Aid↕:

I guess I avoided these issues by tuning inadvertently, both because I haven't had any issues like this and I also don't have any assists on apart from oversteer/understeer reductions...

I know that if DCT's and Autos with their torque converters locked will stall if the locking rpm is too low(tuned tested)and you lock up the wheels or even come to a stop without having downshifted because the transmissions are too lazy by default and in those higher gears it remains locked by default, with no target rpm(0).

Can someone record it happening so I get a better picture? It seems like a really repeatable action both for the syncro damage and the stalling aye

If anyone wants to get more tuning to help avoid the issue I talked about above(or make a better more responsive transmission), get CJD's Override Module on the Repository and you can forcibly change the shift logic and shift rpms. Want a super aggressive DCT that downshifts as soon as you give it too much throttle? you can do that. Make a lazy CVT that only downshifts when you smash the pedal? you can do that too!

Also recommend r.k's mods along with CJD's mods too!

The Gearbox Override Module still works on manual transmissions, and changes the behaviour of the Arcade Mode.

I'll make a recording of myself doing it tomorrow. I'm going to bed.

[Timicro]

Originally posted by Maxar:

Originally posted by ↕ßæł-Aid↕:

oh THAT, that's the thing that happens if you produce too many g's of force, you can make this happen by power sliding in a single spot around and around, eventually the sideways g'force will trigger the "Collision detected, coming to a stop" prompt and brakes being smashed. Not much you can do about that I'm afraid

I initially thought the g-force was the reason the engine was shutting down, but now I think it's because of the Clutch Assistant feature not always working well with some automatic transmission systems in certain cars.

there is no clutch in an automatic for that setting to assist on

[↕ßæł-Aid↕]

Originally posted by Timicro:

Originally posted by Maxar:

I initially thought the g-force was the reason the engine was shutting down, but now I think it's because of the Clutch Assistant feature not always working well with some automatic transmission systems in certain cars.

there is no clutch in an automatic for that setting to assist on

Originally posted by Timicro:

Originally posted by Maxar:

I initially thought the g-force was the reason the engine was shutting down, but now I think it's because of the Clutch Assistant feature not always working well with some automatic transmission systems in certain cars.

there is no clutch in an automatic for that setting to assist on

Traditional Automatic Transmissions have a torque converter and then a hydraulic clutch in the middle of it, that based on whether or not it is a modern transmission, will lock fully or lock to different rpm's depending on conditions like throttle, engine load, engine temperature, what gear you are in and the speed of your vehicle.

BeamNG unfortunately only has the latter, and no way to change it.
Not even mods only Automation: The Car Company Tycoon Game has that, in the form of the "Advanced Automatic Transmission" And there's no way to adjust that, so it's just as it is there.

My car has a four speed automatic transmission, but the low shift point for second is 15 km/h, third at 25 and fourth at 40(speedometer readings not actual speed), but the torque converter by itself with no locking has a stall rpm of 3600 RPM, but going full throttle from idk like 5 km'h not from a stop it'll catch the rpm's at 2500 rpm, and at lower throttles will lock at different rpm's depending on conditions, and my car's 20 years old!

It also simulates having multiple gears, locks to like 8 torque numbers, and makes the most(most of the time) of the throttle applied and that makes it quite efficient. Only situation where the rpm starts getting high before it gets there is getting into fourth with not much throttle applied, in which it'll get up to 1600-1800 before shifting and by the end of third it's locked fully, or to 1500, 1700, 2000, 2500, 3000 in fourth etc. 2500 rpm is 100km/h so it cruises real nice like.

I understand if your ignorance on this subject was unknown, but hopefully my response has informed you.

[log233when]

The car's anti-stall clutch assist does not update idle RPM according to engine configuration. On street cars engines have enough low-end torque and the idle RPM are lower (700~900RPM). On race cars with performance long block and ultra light flywheel, the low-end torque is low and idle RPM is high(1200~1500RPM). If the clutch assist only activate according to the older RPM, the engine will stall when you brake to idle RPM.