Aisin tagged posts

Last week I have discussed the GM 8AT and the ZF 9AT, today let’s take a look at the Aisin AA80E, which is used in the Lexus IS350, GS350, LS460, IS-F and the upcoming RC-F.

Unlike other longitude mounted 8AT such as the ZF 8HP and GM 8L90, the Aisin transmission uses compound planetary gear sets. A compound planetary gear set is a planetary gear set that has multiple sun gears or multiple ring gears. There are different types of them, the one we are interested in is called the Ravingeaux gear set, which has two sun gears, two planet carriers and they share one common ring gear.

One Ravingeaux gear set can provide 4 forward gear ratios and also the neutral and reverse.

T...

Dear readers, five days earlier we published the news about the Chinese luxury brand HongQi’s latest model – L5, which is aiming at competitors such as the Rolls-Royce Ghost. This news has gained lots of attention during the past few days, and we received large amount of inquries about this car.

So here we provide a full story of the HongQi L-series luxury sedan family.

Currently for the L-series there are three members: L5, L7 and L9. The smallest model L5 has civilian version (which is the model that current western medias are reporting about), but the L7 and L9 are only reserved for head of state at this moment.

The L9 is reserved for the officer level such as presiden...

With more collaborations between BMW and Toyota, we will find more of the Japanese company’s product in the German brand (Aisin is owned by its parent company Toyota).

According to BMW, their future FWD platform sedans’ transmission will be supplied by Aisin (the current BMW RWD cars’ transmission are majorly sourced from ZF).

The new Aisin transmission is improved for the damping capability of the torque converter, which is suitable for turbo engine. The turbo engine’s low end torque results the engine run at low RPM range more time. While this helps to optimize fuel consumption, it also significantly increases the level of torque fluctuations...