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As the central hub of the AISIN Group's 150 consolidated companies, Aisin Seiki pursues business expansion chiefly through its mainstay Automotive Parts and Systems Business.
This business covers such diverse fields as drivetrain related, brake and chassis related, body related, engine related and information related products segments. Aisin Seiki capitalizes on its accumulated automobile related expertise to offer products in such diverse fields as life, energy and welfare. In this way, Aisin Seiki endeavors to offer attractive products and services with truly high quality and cost competitiveness based on “Quality First.”

RWD 6-speed automatic transmission for light duty trucks & buses
Engine Brake Performance is Improved in Addition to Fuel Efficiency and Dynamic Performance
- The automatic transmission controls the amount of continuous slip of lock-up clutch to reduce energy loss caused during shifting.
- When an accelerator pedal is released, the optimum downshifting is automatically done according to vehicle weight and road gradient, providing improved engine brake performance.
- Neutral control, a function which reduces engine load at idling, decreases fuel injection quantity during
idling.
- The number of parts is reduced compared with a 4-speed automatic transmission, offering a compact design (compared with conventional AISIN products).
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RWD 5-speed automatic transmission for medium duty trucks & buses
- High torque capacity, superior driveability for operator comfort with minimum fatugue and low fuel consumption
- Two-mode driving, either "Economy or Power" are selectable
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RWD 4-speed automatic transmission with transfer for light duty trucks and recreational vehicles
- Applicable to both 2 Wheel Drive and 4 Wheel Drive vehicle applications
- Compact and lightweight
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Power-shift transmission for forklift trucks
- Easily mountable integrated differential lock model
- Enables electronic shifting for excellent shifting performance
- 1-1.8t and 2-3 t series
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Automated Manual Transmission
Easy Drive of Automatic Shifting is Achieved by an Add-on System to MT
- In addition of a conventional Easy mode (E mode) focused on smooth
shifting, Sporty mode (Es mode) focusing on response is added to satisfy both
"fuel economy" requirements and improvement of "drivability" demands
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High Capacity-High Damping Clutch Disc & Clutch Cover
Realized high capacity and high damping by improved damper structure
- Clutch disc: wide torsion angle with rearrangement of damper structure to realize high vibration damping performance
- Clutch cover: stable clutch performance by using Diaphragm Spring Turnover (DST) type
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Clutch Cover |
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Clutch Disc |
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Flywheel with torsional damper |
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Differential with 2WD-4WD shiftactuator for all terrain vehicle
Just by activating a switch on driver's side enables the toggling between 2WD and 4WD
- Employs an electronic switching mechanism that improves ease of toggling and mountability
- Improved traveling performance with differential lock function
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Torque converter |
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Electric Oil Pumps
Compact, Lightweight and Long-life Electric Oil Pump
- Downsizing by integration of control circuit, motor and pump enables various kinds of vehicles to mount
- Noise is reduced by optimizing motor control
- The product line up from small capacity (for assisting hydraulic pressure of VVT) to large capacity (for controlling hydraulic pressure of AT) is available
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Semiconductor type active speed sensor
Semiconductor-type sensor which improves system reliability and installability
- Suitable for both gear and magnetic rotor types due to modular construction of IC and magnet
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