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Example · Automotive · ASOMv10

Motor-driven car seat

An electric motor adjusts a car seat. ASOMv10 shows the torque and power of the motor for different seat occupancies – and what difference a torsion spring makes.

ASOMv10 with the motor-driven car seat: seat with four-bar linkage and gear pair, next to it the properties of the torsion spring and the torque at the pinion for different seat-occupancy load cases, at the bottom the drive control1:40
The task

One motor, different seat occupancies

An electric motor drives the four-bar linkage via a gear pair and moves the seat through all extreme positions. The torque and power it needs depend on how the seat is occupied. The system also contains a torsion spring whose characteristic curve influences the required motor torque.

What ASOM shows here
  • The drive control automatically moves the seat through all extreme positions.
  • Torque and power at the location of the motor, in parallel for different seat-occupancy load cases.
  • Change the characteristic curve of the torsion spring, and you see the effect on the motor torque in real time.
Your benefits

Tune drive and spring together

You see immediately how the spring and the seat occupancy change the motor torque, and you design the drive to match from the start.

The right motor size

You know the torque and power for every occupancy before the motor is selected. More on force calculation

Fewer samples

You check whether the motor and spring match on the model instead of on the prototype.

All occupancies at a glance

One diagram per quantity with all load cases, instead of many individual calculations. More on diagrams

More examples

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