5 ms·

73 Wh/kg is a decent number. IIRC the previous gen Prius had 46Wh/kg batteries. Perhaps with some reconfiguration it would be possible in the future to give th

by Tade0 6y ago

73 Wh/kg is a decent number. IIRC the previous gen Prius had 46Wh/kg batteries. Perhaps with some reconfiguration it would be possible in the future to give those old machines some additional oomph, as the discharge limit in their NiMH battery packs is way below the combined power of the two motor-generators(21kW vs 60kW).

hinkley 6y ago
For comparison, Maxwell has supercaps with a power density of 5.9 Wh/kg. But it's also rated at half a million charge cycles.
numpad0 6y ago
I wonder why no one is talking about acceleration limiters implemented in pedals and inverters in non-Tesla cars. The reason why only Tesla is famous for its instant torque is because only theirs don’t have it.
- Tade0 6y ago
  My Toyota hybrid has instant torque - just not a lot of it. It's only really noticeable in the "power" (I guess calling it "sport" would be too much) setting.
  - numpad0 6y ago
    I was thinking about a potato video I no longer have links to, that explained how shifting from N to D or B(not sure which) while flooring accelerator bypasses an undocumented safety limiter and cause the car to jump forward harder than the car normally would. Nissan Leaf reportedly has a similar jerk limiter feature. Isn’t it a bit odd that no one talks about it? Though probably the fact is just that no one take stock Prius or Leaf seriously
    - Tade0 6y ago
      I think it may be from R to D - I do that a lot and you're almost guaranteed to get all the torque you want this way - at least I always had, as opposed to just accelerating from a standstill, to which sometimes the ECU would react with a cold "yeah, no". I read that in the former case it's connected with the fact that the motor-generator attached to the sun gear has to start turning in the opposite direction to assist acceleration - the high-pitched whine of the inverter appears to support this theory. As for talking about it: I guess people just assume all EVs have instant torque. I for one was surprised to learn that the Renault Zoe has a delay put there supposedly to emulate an automatic transmission. The IONIQ hybrid on the other hand, which I've test driven, has to react like a regular automatic because the electric motor is sandwiched between the engine and the transmission. I was meaning to get it after my first Toyota hybrid got stolen, but the way it reacted to throttle input turned out to be a deal breaker for me.

by Tade0 6y ago

hinkley 6y ago

For comparison, Maxwell has supercaps with a power density of 5.9 Wh/kg. But it's also rated at half a million charge cycles.

numpad0 6y ago

I wonder why no one is talking about acceleration limiters implemented in pedals and inverters in non-Tesla cars. The reason why only Tesla is famous for its instant torque is because only theirs don’t have it.

Tade0 6y ago
My Toyota hybrid has instant torque - just not a lot of it. It's only really noticeable in the "power" (I guess calling it "sport" would be too much) setting.
- numpad0 6y ago
  I was thinking about a potato video I no longer have links to, that explained how shifting from N to D or B(not sure which) while flooring accelerator bypasses an undocumented safety limiter and cause the car to jump forward harder than the car normally would. Nissan Leaf reportedly has a similar jerk limiter feature. Isn’t it a bit odd that no one talks about it? Though probably the fact is just that no one take stock Prius or Leaf seriously
  - Tade0 6y ago
    I think it may be from R to D - I do that a lot and you're almost guaranteed to get all the torque you want this way - at least I always had, as opposed to just accelerating from a standstill, to which sometimes the ECU would react with a cold "yeah, no". I read that in the former case it's connected with the fact that the motor-generator attached to the sun gear has to start turning in the opposite direction to assist acceleration - the high-pitched whine of the inverter appears to support this theory. As for talking about it: I guess people just assume all EVs have instant torque. I for one was surprised to learn that the Renault Zoe has a delay put there supposedly to emulate an automatic transmission. The IONIQ hybrid on the other hand, which I've test driven, has to react like a regular automatic because the electric motor is sandwiched between the engine and the transmission. I was meaning to get it after my first Toyota hybrid got stolen, but the way it reacted to throttle input turned out to be a deal breaker for me.