Sluggish acceleration during Hybrid Battery in Charging Stage?

If the hv battery is really low it may not be contributing much to your acceleration. In addition more of the engine's hp may be diverted to the battery. When the hv battery is newer it has more capacity even at low bars.

 

That is when you normally use the hv battery the most. An Atkinson cycle engine has very little torque at low speeds. Your battery is getting old.











5

 

Actually the high voltage normally available from the hybrid battery is used all the time especially at low speeds. At minimum it has to run the electric motors to maintain sync with the engine. At low speed it runs in parallel with the engine. When the hv battery can not contribute due to low capacity, one electric motor is trying to charge the battery while the second is receiving electricity from the system. I promise you that low hv battery capacity dramatically reduces power to the wheels even with the engine on.

There is an easy test: When the battery has a high charge, do your parking lot test. Acceleration will be normal, at least until the charge depletes.

 

That is not true. I notice a big difference in normal acceleration with low battery and normal battery. The ICE will rev noticably more when the HV battery is low.

 

It depends on how much your throttle is. At close to full throttle, it will be all to the wheel but at low and partial throttle, it depends on battery charge level. Especially the torque feel when the 2nd generator does not contribute much because of low battery level.