Technology and Products Major Product Information: Hybrid Transmission

Toward an environmentally friendly mobility society.

In an era seeking to establish harmony between nature and society, we spearheaded the development of eco-friendly products, and in 2004, we became the first auto-parts manufacturer to develop a hybrid system.
We conduct integrated operations from system development to the production of motors, and have been actively engaged in creating eco-friendly vehicles.

RWD Multi Stage
Hybrid Transmission

AWRHM50

Offers excellent acceleration performance and improved fuel efficiency that revolutionizes the driving performance of hybrid vehicles.

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Aiming to create the ultimate transmission that achieves amazing acceleration performance and environmental friendliness on an unprecedented scale, Aisin AW successfully developed the high torque capacity RWD 2-Motor Hybrid Transmission in 2006, and in 2007, the world’s first RWD Multi Stage Hybrid Transmission which reinvigorated the driving experience of the hybrid vehicle.
We went further in 2017 with the development of the world’s first RWD multi-stage hybrid transmission, which transformed the perception of hybrid vehicle driving performance.

  • ・Adopting a multistage shift device to a hybrid transmission enables more efficient use of engine and motor energy
  • ・Excellent acceleration performance and high fuel efficiency are achieved by significantly improved system output and transmission efficiency in the entire range

Applicable Vehicle: LC500h (LEXUS)

Adoption of the shift mechanism in the conventional hybrid system achieved an intense direct driving feel

Adopting a multistage shift device to a hybrid transmission enables more efficient use of engine and motor energy.

Structure

The wider spread of the gear ratios improved fuel economy and acceleration performance

Excellent acceleration performance and high fuel economy are achieved by significantly improved system output and transmission efficiency in the entire range.

Acceleration Performance

Fuel Economy

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Small Torque Capacity FWD 2-Motor Hybrid Transmission

AWFHT15

An impressively compact and fuel-efficient hybrid transmission developed in the pursuit of ever-advanced products.

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Capitalizing on our automatic transmission manufacturing know-how, in 2004, we began production of downsized hybrid transmissions featuring impressive fuel efficiency.
In 2015, we commenced the production of our latest FWD 2-motor hybrid transmission, the AWFHT15.

  • ・ Size and weight reduced compared to the conventional product, by arranging dual motor shafts and increasing engine speed
  • ・The parallel axis reduction gear (replacing the planetary gear) and the new motor structure reduce loss by approximately 20% compared to the conventional model

Applicable Vehicle: Prius (Toyota)

Downsizing and improvement of fuel efficiency were achieved by the fundamental redesign of layout

Reduced total length (by 12%) and weight has been achieved compared with the conventional product by increasing the motor speed and employing the dual shaft layout (i.e. having two separate motor shafts).
The reduction gear for amplifying the motor torque has been changed from the planetary gear to the parallel shaft gear mechanism.
As a result of introducing a motor with a new structure, loss has been reduced by approximately 20% compared to the conventional product.
This product helps effectively utilize space and increase fuel efficiency.

Structure

Length

Mass

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