How to control automotive power seats

Drive brushed DC motors with this reference design
http://www.ti.com/tool/tida-020008

Power seats increase passenger convenience in the modern automotive cockpit.
Thanks to the demos shown at our Detroit Tech Day, getting your seat position
right has never been easier. This video demonstrates several different
reference designs for controlling an automotive power seat, including the
basic forward/backward and up/down motors, as well comfort options like power
seat tilt, motorized headrest adjustment, and inflatable lumbar support.
Sensorless ripple counting shows how to keep track of motion for memory seat
options. 

Use a sensorless approach to position measurement with this design
http://www.ti.com/tool/TIDA-01421

Implement a two-axis driver with this reference design
http://www.ti.com/tool/TIDA-01330

Learn more about the two-axis power seat brushed DC motor drive reference design
https://training.ti.com/node/1129321